| /* |
| * Copyright (C) 2006 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.webkit; |
| |
| import android.annotation.Widget; |
| import android.app.AlertDialog; |
| import android.content.BroadcastReceiver; |
| import android.content.ClipboardManager; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.DialogInterface.OnCancelListener; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.res.AssetManager; |
| import android.content.res.Configuration; |
| import android.database.DataSetObserver; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.BitmapShader; |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.CornerPathEffect; |
| import android.graphics.DrawFilter; |
| import android.graphics.Paint; |
| import android.graphics.PaintFlagsDrawFilter; |
| import android.graphics.Picture; |
| import android.graphics.Point; |
| import android.graphics.Rect; |
| import android.graphics.RectF; |
| import android.graphics.Region; |
| import android.graphics.Shader; |
| import android.graphics.drawable.Drawable; |
| import android.net.Proxy; |
| import android.net.ProxyProperties; |
| import android.net.Uri; |
| import android.net.http.SslCertificate; |
| import android.os.AsyncTask; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.StrictMode; |
| import android.provider.Settings; |
| import android.speech.tts.TextToSpeech; |
| import android.text.Selection; |
| import android.text.Spannable; |
| import android.util.AttributeSet; |
| import android.util.EventLog; |
| import android.util.Log; |
| import android.view.Gravity; |
| import android.view.HardwareCanvas; |
| import android.view.InputDevice; |
| import android.view.KeyCharacterMap; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.MotionEvent; |
| import android.view.ScaleGestureDetector; |
| import android.view.SoundEffectConstants; |
| import android.view.VelocityTracker; |
| import android.view.View; |
| import android.view.ViewConfiguration; |
| import android.view.ViewGroup; |
| import android.view.ViewParent; |
| import android.view.ViewTreeObserver; |
| import android.view.accessibility.AccessibilityManager; |
| import android.view.inputmethod.EditorInfo; |
| import android.view.inputmethod.InputConnection; |
| import android.view.inputmethod.InputMethodManager; |
| import android.webkit.WebTextView.AutoCompleteAdapter; |
| import android.webkit.WebViewCore.DrawData; |
| import android.webkit.WebViewCore.EventHub; |
| import android.webkit.WebViewCore.TouchEventData; |
| import android.webkit.WebViewCore.TouchHighlightData; |
| import android.widget.AbsoluteLayout; |
| import android.widget.Adapter; |
| import android.widget.AdapterView; |
| import android.widget.AdapterView.OnItemClickListener; |
| import android.widget.ArrayAdapter; |
| import android.widget.CheckedTextView; |
| import android.widget.LinearLayout; |
| import android.widget.ListView; |
| import android.widget.OverScroller; |
| import android.widget.Toast; |
| |
| import junit.framework.Assert; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.URLDecoder; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.Vector; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * <p>A View that displays web pages. This class is the basis upon which you |
| * can roll your own web browser or simply display some online content within your Activity. |
| * It uses the WebKit rendering engine to display |
| * web pages and includes methods to navigate forward and backward |
| * through a history, zoom in and out, perform text searches and more.</p> |
| * <p>To enable the built-in zoom, set |
| * {@link #getSettings() WebSettings}.{@link WebSettings#setBuiltInZoomControls(boolean)} |
| * (introduced in API version 3). |
| * <p>Note that, in order for your Activity to access the Internet and load web pages |
| * in a WebView, you must add the {@code INTERNET} permissions to your |
| * Android Manifest file:</p> |
| * <pre><uses-permission android:name="android.permission.INTERNET" /></pre> |
| * |
| * <p>This must be a child of the <a |
| * href="{@docRoot}guide/topics/manifest/manifest-element.html">{@code <manifest>}</a> |
| * element.</p> |
| * |
| * <p>See the <a href="{@docRoot}resources/tutorials/views/hello-webview.html">Web View |
| * tutorial</a>.</p> |
| * |
| * <h3>Basic usage</h3> |
| * |
| * <p>By default, a WebView provides no browser-like widgets, does not |
| * enable JavaScript and web page errors are ignored. If your goal is only |
| * to display some HTML as a part of your UI, this is probably fine; |
| * the user won't need to interact with the web page beyond reading |
| * it, and the web page won't need to interact with the user. If you |
| * actually want a full-blown web browser, then you probably want to |
| * invoke the Browser application with a URL Intent rather than show it |
| * with a WebView. For example: |
| * <pre> |
| * Uri uri = Uri.parse("http://www.example.com"); |
| * Intent intent = new Intent(Intent.ACTION_VIEW, uri); |
| * startActivity(intent); |
| * </pre> |
| * <p>See {@link android.content.Intent} for more information.</p> |
| * |
| * <p>To provide a WebView in your own Activity, include a {@code <WebView>} in your layout, |
| * or set the entire Activity window as a WebView during {@link |
| * android.app.Activity#onCreate(Bundle) onCreate()}:</p> |
| * <pre class="prettyprint"> |
| * WebView webview = new WebView(this); |
| * setContentView(webview); |
| * </pre> |
| * |
| * <p>Then load the desired web page:</p> |
| * <pre> |
| * // Simplest usage: note that an exception will NOT be thrown |
| * // if there is an error loading this page (see below). |
| * webview.loadUrl("http://slashdot.org/"); |
| * |
| * // OR, you can also load from an HTML string: |
| * String summary = "<html><body>You scored <b>192</b> points.</body></html>"; |
| * webview.loadData(summary, "text/html", null); |
| * // ... although note that there are restrictions on what this HTML can do. |
| * // See the JavaDocs for {@link #loadData(String,String,String) loadData()} and {@link |
| * #loadDataWithBaseURL(String,String,String,String,String) loadDataWithBaseURL()} for more info. |
| * </pre> |
| * |
| * <p>A WebView has several customization points where you can add your |
| * own behavior. These are:</p> |
| * |
| * <ul> |
| * <li>Creating and setting a {@link android.webkit.WebChromeClient} subclass. |
| * This class is called when something that might impact a |
| * browser UI happens, for instance, progress updates and |
| * JavaScript alerts are sent here (see <a |
| * href="{@docRoot}guide/developing/debug-tasks.html#DebuggingWebPages">Debugging Tasks</a>). |
| * </li> |
| * <li>Creating and setting a {@link android.webkit.WebViewClient} subclass. |
| * It will be called when things happen that impact the |
| * rendering of the content, eg, errors or form submissions. You |
| * can also intercept URL loading here (via {@link |
| * android.webkit.WebViewClient#shouldOverrideUrlLoading(WebView,String) |
| * shouldOverrideUrlLoading()}).</li> |
| * <li>Modifying the {@link android.webkit.WebSettings}, such as |
| * enabling JavaScript with {@link android.webkit.WebSettings#setJavaScriptEnabled(boolean) |
| * setJavaScriptEnabled()}. </li> |
| * <li>Adding JavaScript-to-Java interfaces with the {@link |
| * android.webkit.WebView#addJavascriptInterface} method. |
| * This lets you bind Java objects into the WebView so they can be |
| * controlled from the web pages JavaScript.</li> |
| * </ul> |
| * |
| * <p>Here's a more complicated example, showing error handling, |
| * settings, and progress notification:</p> |
| * |
| * <pre class="prettyprint"> |
| * // Let's display the progress in the activity title bar, like the |
| * // browser app does. |
| * getWindow().requestFeature(Window.FEATURE_PROGRESS); |
| * |
| * webview.getSettings().setJavaScriptEnabled(true); |
| * |
| * final Activity activity = this; |
| * webview.setWebChromeClient(new WebChromeClient() { |
| * public void onProgressChanged(WebView view, int progress) { |
| * // Activities and WebViews measure progress with different scales. |
| * // The progress meter will automatically disappear when we reach 100% |
| * activity.setProgress(progress * 1000); |
| * } |
| * }); |
| * webview.setWebViewClient(new WebViewClient() { |
| * public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { |
| * Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show(); |
| * } |
| * }); |
| * |
| * webview.loadUrl("http://slashdot.org/"); |
| * </pre> |
| * |
| * <h3>Cookie and window management</h3> |
| * |
| * <p>For obvious security reasons, your application has its own |
| * cache, cookie store etc.—it does not share the Browser |
| * application's data. Cookies are managed on a separate thread, so |
| * operations like index building don't block the UI |
| * thread. Follow the instructions in {@link android.webkit.CookieSyncManager} |
| * if you want to use cookies in your application. |
| * </p> |
| * |
| * <p>By default, requests by the HTML to open new windows are |
| * ignored. This is true whether they be opened by JavaScript or by |
| * the target attribute on a link. You can customize your |
| * {@link WebChromeClient} to provide your own behaviour for opening multiple windows, |
| * and render them in whatever manner you want.</p> |
| * |
| * <p>The standard behavior for an Activity is to be destroyed and |
| * recreated when the device orientation or any other configuration changes. This will cause |
| * the WebView to reload the current page. If you don't want that, you |
| * can set your Activity to handle the {@code orientation} and {@code keyboardHidden} |
| * changes, and then just leave the WebView alone. It'll automatically |
| * re-orient itself as appropriate. Read <a |
| * href="{@docRoot}guide/topics/resources/runtime-changes.html">Handling Runtime Changes</a> for |
| * more information about how to handle configuration changes during runtime.</p> |
| * |
| * |
| * <h3>Building web pages to support different screen densities</h3> |
| * |
| * <p>The screen density of a device is based on the screen resolution. A screen with low density |
| * has fewer available pixels per inch, where a screen with high density |
| * has more — sometimes significantly more — pixels per inch. The density of a |
| * screen is important because, other things being equal, a UI element (such as a button) whose |
| * height and width are defined in terms of screen pixels will appear larger on the lower density |
| * screen and smaller on the higher density screen. |
| * For simplicity, Android collapses all actual screen densities into three generalized densities: |
| * high, medium, and low.</p> |
| * <p>By default, WebView scales a web page so that it is drawn at a size that matches the default |
| * appearance on a medium density screen. So, it applies 1.5x scaling on a high density screen |
| * (because its pixels are smaller) and 0.75x scaling on a low density screen (because its pixels |
| * are bigger). |
| * Starting with API Level 5 (Android 2.0), WebView supports DOM, CSS, and meta tag features to help |
| * you (as a web developer) target screens with different screen densities.</p> |
| * <p>Here's a summary of the features you can use to handle different screen densities:</p> |
| * <ul> |
| * <li>The {@code window.devicePixelRatio} DOM property. The value of this property specifies the |
| * default scaling factor used for the current device. For example, if the value of {@code |
| * window.devicePixelRatio} is "1.0", then the device is considered a medium density (mdpi) device |
| * and default scaling is not applied to the web page; if the value is "1.5", then the device is |
| * considered a high density device (hdpi) and the page content is scaled 1.5x; if the |
| * value is "0.75", then the device is considered a low density device (ldpi) and the content is |
| * scaled 0.75x. However, if you specify the {@code "target-densitydpi"} meta property |
| * (discussed below), then you can stop this default scaling behavior.</li> |
| * <li>The {@code -webkit-device-pixel-ratio} CSS media query. Use this to specify the screen |
| * densities for which this style sheet is to be used. The corresponding value should be either |
| * "0.75", "1", or "1.5", to indicate that the styles are for devices with low density, medium |
| * density, or high density screens, respectively. For example: |
| * <pre> |
| * <link rel="stylesheet" media="screen and (-webkit-device-pixel-ratio:1.5)" href="hdpi.css" /></pre> |
| * <p>The {@code hdpi.css} stylesheet is only used for devices with a screen pixel ration of 1.5, |
| * which is the high density pixel ratio.</p> |
| * </li> |
| * <li>The {@code target-densitydpi} property for the {@code viewport} meta tag. You can use |
| * this to specify the target density for which the web page is designed, using the following |
| * values: |
| * <ul> |
| * <li>{@code device-dpi} - Use the device's native dpi as the target dpi. Default scaling never |
| * occurs.</li> |
| * <li>{@code high-dpi} - Use hdpi as the target dpi. Medium and low density screens scale down |
| * as appropriate.</li> |
| * <li>{@code medium-dpi} - Use mdpi as the target dpi. High density screens scale up and |
| * low density screens scale down. This is also the default behavior.</li> |
| * <li>{@code low-dpi} - Use ldpi as the target dpi. Medium and high density screens scale up |
| * as appropriate.</li> |
| * <li><em>{@code <value>}</em> - Specify a dpi value to use as the target dpi (accepted |
| * values are 70-400).</li> |
| * </ul> |
| * <p>Here's an example meta tag to specify the target density:</p> |
| * <pre><meta name="viewport" content="target-densitydpi=device-dpi" /></pre></li> |
| * </ul> |
| * <p>If you want to modify your web page for different densities, by using the {@code |
| * -webkit-device-pixel-ratio} CSS media query and/or the {@code |
| * window.devicePixelRatio} DOM property, then you should set the {@code target-densitydpi} meta |
| * property to {@code device-dpi}. This stops Android from performing scaling in your web page and |
| * allows you to make the necessary adjustments for each density via CSS and JavaScript.</p> |
| * |
| * |
| */ |
| @Widget |
| public class WebView extends AbsoluteLayout |
| implements ViewTreeObserver.OnGlobalFocusChangeListener, |
| ViewGroup.OnHierarchyChangeListener { |
| |
| private class InnerGlobalLayoutListener implements ViewTreeObserver.OnGlobalLayoutListener { |
| public void onGlobalLayout() { |
| if (isShown()) { |
| setGLRectViewport(); |
| } |
| } |
| } |
| |
| private class InnerScrollChangedListener implements ViewTreeObserver.OnScrollChangedListener { |
| public void onScrollChanged() { |
| if (isShown()) { |
| setGLRectViewport(); |
| } |
| } |
| } |
| |
| // The listener to capture global layout change event. |
| private InnerGlobalLayoutListener mGlobalLayoutListener = null; |
| |
| // The listener to capture scroll event. |
| private InnerScrollChangedListener mScrollChangedListener = null; |
| |
| // if AUTO_REDRAW_HACK is true, then the CALL key will toggle redrawing |
| // the screen all-the-time. Good for profiling our drawing code |
| static private final boolean AUTO_REDRAW_HACK = false; |
| // true means redraw the screen all-the-time. Only with AUTO_REDRAW_HACK |
| private boolean mAutoRedraw; |
| |
| // Reference to the AlertDialog displayed by InvokeListBox. |
| // It's used to dismiss the dialog in destroy if not done before. |
| private AlertDialog mListBoxDialog = null; |
| |
| static final String LOGTAG = "webview"; |
| |
| private ZoomManager mZoomManager; |
| |
| private final Rect mGLRectViewport = new Rect(); |
| private final Rect mViewRectViewport = new Rect(); |
| private boolean mGLViewportEmpty = false; |
| |
| /** |
| * Transportation object for returning WebView across thread boundaries. |
| */ |
| public class WebViewTransport { |
| private WebView mWebview; |
| |
| /** |
| * Set the WebView to the transportation object. |
| * @param webview The WebView to transport. |
| */ |
| public synchronized void setWebView(WebView webview) { |
| mWebview = webview; |
| } |
| |
| /** |
| * Return the WebView object. |
| * @return WebView The transported WebView object. |
| */ |
| public synchronized WebView getWebView() { |
| return mWebview; |
| } |
| } |
| |
| // A final CallbackProxy shared by WebViewCore and BrowserFrame. |
| private final CallbackProxy mCallbackProxy; |
| |
| private final WebViewDatabase mDatabase; |
| |
| // SSL certificate for the main top-level page (if secure) |
| private SslCertificate mCertificate; |
| |
| // Native WebView pointer that is 0 until the native object has been |
| // created. |
| private int mNativeClass; |
| // This would be final but it needs to be set to null when the WebView is |
| // destroyed. |
| private WebViewCore mWebViewCore; |
| // Handler for dispatching UI messages. |
| /* package */ final Handler mPrivateHandler = new PrivateHandler(); |
| private WebTextView mWebTextView; |
| // Used to ignore changes to webkit text that arrives to the UI side after |
| // more key events. |
| private int mTextGeneration; |
| |
| /* package */ void incrementTextGeneration() { mTextGeneration++; } |
| |
| // Used by WebViewCore to create child views. |
| /* package */ final ViewManager mViewManager; |
| |
| // Used to display in full screen mode |
| PluginFullScreenHolder mFullScreenHolder; |
| |
| /** |
| * Position of the last touch event in pixels. |
| * Use integer to prevent loss of dragging delta calculation accuracy; |
| * which was done in float and converted to integer, and resulted in gradual |
| * and compounding touch position and view dragging mismatch. |
| */ |
| private int mLastTouchX; |
| private int mLastTouchY; |
| private int mStartTouchX; |
| private int mStartTouchY; |
| private float mAverageAngle; |
| |
| /** |
| * Time of the last touch event. |
| */ |
| private long mLastTouchTime; |
| |
| /** |
| * Time of the last time sending touch event to WebViewCore |
| */ |
| private long mLastSentTouchTime; |
| |
| /** |
| * The minimum elapsed time before sending another ACTION_MOVE event to |
| * WebViewCore. This really should be tuned for each type of the devices. |
| * For example in Google Map api test case, it takes Dream device at least |
| * 150ms to do a full cycle in the WebViewCore by processing a touch event, |
| * triggering the layout and drawing the picture. While the same process |
| * takes 60+ms on the current high speed device. If we make |
| * TOUCH_SENT_INTERVAL too small, there will be multiple touch events sent |
| * to WebViewCore queue and the real layout and draw events will be pushed |
| * to further, which slows down the refresh rate. Choose 50 to favor the |
| * current high speed devices. For Dream like devices, 100 is a better |
| * choice. Maybe make this in the buildspec later. |
| * (Update 12/14/2010: changed to 0 since current device should be able to |
| * handle the raw events and Map team voted to have the raw events too. |
| */ |
| private static final int TOUCH_SENT_INTERVAL = 0; |
| private int mCurrentTouchInterval = TOUCH_SENT_INTERVAL; |
| |
| /** |
| * Helper class to get velocity for fling |
| */ |
| VelocityTracker mVelocityTracker; |
| private int mMaximumFling; |
| private float mLastVelocity; |
| private float mLastVelX; |
| private float mLastVelY; |
| |
| // The id of the native layer being scrolled. |
| private int mScrollingLayer; |
| private Rect mScrollingLayerRect = new Rect(); |
| |
| // only trigger accelerated fling if the new velocity is at least |
| // MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION times of the previous velocity |
| private static final float MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION = 0.2f; |
| |
| /** |
| * Touch mode |
| */ |
| private int mTouchMode = TOUCH_DONE_MODE; |
| private static final int TOUCH_INIT_MODE = 1; |
| private static final int TOUCH_DRAG_START_MODE = 2; |
| private static final int TOUCH_DRAG_MODE = 3; |
| private static final int TOUCH_SHORTPRESS_START_MODE = 4; |
| private static final int TOUCH_SHORTPRESS_MODE = 5; |
| private static final int TOUCH_DOUBLE_TAP_MODE = 6; |
| private static final int TOUCH_DONE_MODE = 7; |
| private static final int TOUCH_PINCH_DRAG = 8; |
| private static final int TOUCH_DRAG_LAYER_MODE = 9; |
| |
| // Whether to forward the touch events to WebCore |
| // Can only be set by WebKit via JNI. |
| private boolean mForwardTouchEvents = false; |
| |
| // Whether to prevent default during touch. The initial value depends on |
| // mForwardTouchEvents. If WebCore wants all the touch events, it says yes |
| // for touch down. Otherwise UI will wait for the answer of the first |
| // confirmed move before taking over the control. |
| private static final int PREVENT_DEFAULT_NO = 0; |
| private static final int PREVENT_DEFAULT_MAYBE_YES = 1; |
| private static final int PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN = 2; |
| private static final int PREVENT_DEFAULT_YES = 3; |
| private static final int PREVENT_DEFAULT_IGNORE = 4; |
| private int mPreventDefault = PREVENT_DEFAULT_IGNORE; |
| |
| // true when the touch movement exceeds the slop |
| private boolean mConfirmMove; |
| |
| // if true, touch events will be first processed by WebCore, if prevent |
| // default is not set, the UI will continue handle them. |
| private boolean mDeferTouchProcess; |
| |
| // to avoid interfering with the current touch events, track them |
| // separately. Currently no snapping or fling in the deferred process mode |
| private int mDeferTouchMode = TOUCH_DONE_MODE; |
| private float mLastDeferTouchX; |
| private float mLastDeferTouchY; |
| |
| // To keep track of whether the current drag was initiated by a WebTextView, |
| // so that we know not to hide the cursor |
| boolean mDragFromTextInput; |
| |
| // Whether or not to draw the cursor ring. |
| private boolean mDrawCursorRing = true; |
| |
| // true if onPause has been called (and not onResume) |
| private boolean mIsPaused; |
| |
| private HitTestResult mInitialHitTestResult; |
| |
| /** |
| * Customizable constant |
| */ |
| // pre-computed square of ViewConfiguration.getScaledTouchSlop() |
| private int mTouchSlopSquare; |
| // pre-computed square of ViewConfiguration.getScaledDoubleTapSlop() |
| private int mDoubleTapSlopSquare; |
| // pre-computed density adjusted navigation slop |
| private int mNavSlop; |
| // This should be ViewConfiguration.getTapTimeout() |
| // But system time out is 100ms, which is too short for the browser. |
| // In the browser, if it switches out of tap too soon, jump tap won't work. |
| private static final int TAP_TIMEOUT = 200; |
| // This should be ViewConfiguration.getLongPressTimeout() |
| // But system time out is 500ms, which is too short for the browser. |
| // With a short timeout, it's difficult to treat trigger a short press. |
| private static final int LONG_PRESS_TIMEOUT = 1000; |
| // needed to avoid flinging after a pause of no movement |
| private static final int MIN_FLING_TIME = 250; |
| // draw unfiltered after drag is held without movement |
| private static final int MOTIONLESS_TIME = 100; |
| // The amount of content to overlap between two screens when going through |
| // pages with the space bar, in pixels. |
| private static final int PAGE_SCROLL_OVERLAP = 24; |
| |
| /** |
| * These prevent calling requestLayout if either dimension is fixed. This |
| * depends on the layout parameters and the measure specs. |
| */ |
| boolean mWidthCanMeasure; |
| boolean mHeightCanMeasure; |
| |
| // Remember the last dimensions we sent to the native side so we can avoid |
| // sending the same dimensions more than once. |
| int mLastWidthSent; |
| int mLastHeightSent; |
| // Since view height sent to webkit could be fixed to avoid relayout, this |
| // value records the last sent actual view height. |
| int mLastActualHeightSent; |
| |
| private int mContentWidth; // cache of value from WebViewCore |
| private int mContentHeight; // cache of value from WebViewCore |
| |
| // Need to have the separate control for horizontal and vertical scrollbar |
| // style than the View's single scrollbar style |
| private boolean mOverlayHorizontalScrollbar = true; |
| private boolean mOverlayVerticalScrollbar = false; |
| |
| // our standard speed. this way small distances will be traversed in less |
| // time than large distances, but we cap the duration, so that very large |
| // distances won't take too long to get there. |
| private static final int STD_SPEED = 480; // pixels per second |
| // time for the longest scroll animation |
| private static final int MAX_DURATION = 750; // milliseconds |
| private static final int SLIDE_TITLE_DURATION = 500; // milliseconds |
| |
| // Used by OverScrollGlow |
| OverScroller mScroller; |
| |
| private boolean mInOverScrollMode = false; |
| private static Paint mOverScrollBackground; |
| private static Paint mOverScrollBorder; |
| |
| private boolean mWrapContent; |
| private static final int MOTIONLESS_FALSE = 0; |
| private static final int MOTIONLESS_PENDING = 1; |
| private static final int MOTIONLESS_TRUE = 2; |
| private static final int MOTIONLESS_IGNORE = 3; |
| private int mHeldMotionless; |
| |
| // An instance for injecting accessibility in WebViews with disabled |
| // JavaScript or ones for which no accessibility script exists |
| private AccessibilityInjector mAccessibilityInjector; |
| |
| // flag indicating if accessibility script is injected so we |
| // know to handle Shift and arrows natively first |
| private boolean mAccessibilityScriptInjected; |
| |
| // the color used to highlight the touch rectangles |
| private static final int mHightlightColor = 0x33000000; |
| // the round corner for the highlight path |
| private static final float TOUCH_HIGHLIGHT_ARC = 5.0f; |
| // the region indicating where the user touched on the screen |
| private Region mTouchHighlightRegion = new Region(); |
| // the paint for the touch highlight |
| private Paint mTouchHightlightPaint; |
| // debug only |
| private static final boolean DEBUG_TOUCH_HIGHLIGHT = true; |
| private static final int TOUCH_HIGHLIGHT_ELAPSE_TIME = 2000; |
| private Paint mTouchCrossHairColor; |
| private int mTouchHighlightX; |
| private int mTouchHighlightY; |
| |
| // Basically this proxy is used to tell the Video to update layer tree at |
| // SetBaseLayer time and to pause when WebView paused. |
| private HTML5VideoViewProxy mHTML5VideoViewProxy; |
| |
| // If we are using a set picture, don't send view updates to webkit |
| private boolean mBlockWebkitViewMessages = false; |
| |
| /* |
| * Private message ids |
| */ |
| private static final int REMEMBER_PASSWORD = 1; |
| private static final int NEVER_REMEMBER_PASSWORD = 2; |
| private static final int SWITCH_TO_SHORTPRESS = 3; |
| private static final int SWITCH_TO_LONGPRESS = 4; |
| private static final int RELEASE_SINGLE_TAP = 5; |
| private static final int REQUEST_FORM_DATA = 6; |
| private static final int RESUME_WEBCORE_PRIORITY = 7; |
| private static final int DRAG_HELD_MOTIONLESS = 8; |
| private static final int AWAKEN_SCROLL_BARS = 9; |
| private static final int PREVENT_DEFAULT_TIMEOUT = 10; |
| private static final int SCROLL_SELECT_TEXT = 11; |
| |
| |
| private static final int FIRST_PRIVATE_MSG_ID = REMEMBER_PASSWORD; |
| private static final int LAST_PRIVATE_MSG_ID = SCROLL_SELECT_TEXT; |
| |
| /* |
| * Package message ids |
| */ |
| static final int SCROLL_TO_MSG_ID = 101; |
| static final int NEW_PICTURE_MSG_ID = 105; |
| static final int UPDATE_TEXT_ENTRY_MSG_ID = 106; |
| static final int WEBCORE_INITIALIZED_MSG_ID = 107; |
| static final int UPDATE_TEXTFIELD_TEXT_MSG_ID = 108; |
| static final int UPDATE_ZOOM_RANGE = 109; |
| static final int UNHANDLED_NAV_KEY = 110; |
| static final int CLEAR_TEXT_ENTRY = 111; |
| static final int UPDATE_TEXT_SELECTION_MSG_ID = 112; |
| static final int SHOW_RECT_MSG_ID = 113; |
| static final int LONG_PRESS_CENTER = 114; |
| static final int PREVENT_TOUCH_ID = 115; |
| static final int WEBCORE_NEED_TOUCH_EVENTS = 116; |
| // obj=Rect in doc coordinates |
| static final int INVAL_RECT_MSG_ID = 117; |
| static final int REQUEST_KEYBOARD = 118; |
| static final int DO_MOTION_UP = 119; |
| static final int SHOW_FULLSCREEN = 120; |
| static final int HIDE_FULLSCREEN = 121; |
| static final int DOM_FOCUS_CHANGED = 122; |
| static final int REPLACE_BASE_CONTENT = 123; |
| static final int FORM_DID_BLUR = 124; |
| static final int RETURN_LABEL = 125; |
| static final int FIND_AGAIN = 126; |
| static final int CENTER_FIT_RECT = 127; |
| static final int REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID = 128; |
| static final int SET_SCROLLBAR_MODES = 129; |
| static final int SELECTION_STRING_CHANGED = 130; |
| static final int SET_TOUCH_HIGHLIGHT_RECTS = 131; |
| static final int SAVE_WEBARCHIVE_FINISHED = 132; |
| |
| static final int SET_AUTOFILLABLE = 133; |
| static final int AUTOFILL_COMPLETE = 134; |
| |
| static final int SELECT_AT = 135; |
| static final int SCREEN_ON = 136; |
| static final int ENTER_FULLSCREEN_VIDEO = 137; |
| |
| private static final int FIRST_PACKAGE_MSG_ID = SCROLL_TO_MSG_ID; |
| private static final int LAST_PACKAGE_MSG_ID = SET_TOUCH_HIGHLIGHT_RECTS; |
| |
| static final String[] HandlerPrivateDebugString = { |
| "REMEMBER_PASSWORD", // = 1; |
| "NEVER_REMEMBER_PASSWORD", // = 2; |
| "SWITCH_TO_SHORTPRESS", // = 3; |
| "SWITCH_TO_LONGPRESS", // = 4; |
| "RELEASE_SINGLE_TAP", // = 5; |
| "REQUEST_FORM_DATA", // = 6; |
| "RESUME_WEBCORE_PRIORITY", // = 7; |
| "DRAG_HELD_MOTIONLESS", // = 8; |
| "AWAKEN_SCROLL_BARS", // = 9; |
| "PREVENT_DEFAULT_TIMEOUT", // = 10; |
| "SCROLL_SELECT_TEXT" // = 11; |
| }; |
| |
| static final String[] HandlerPackageDebugString = { |
| "SCROLL_TO_MSG_ID", // = 101; |
| "102", // = 102; |
| "103", // = 103; |
| "104", // = 104; |
| "NEW_PICTURE_MSG_ID", // = 105; |
| "UPDATE_TEXT_ENTRY_MSG_ID", // = 106; |
| "WEBCORE_INITIALIZED_MSG_ID", // = 107; |
| "UPDATE_TEXTFIELD_TEXT_MSG_ID", // = 108; |
| "UPDATE_ZOOM_RANGE", // = 109; |
| "UNHANDLED_NAV_KEY", // = 110; |
| "CLEAR_TEXT_ENTRY", // = 111; |
| "UPDATE_TEXT_SELECTION_MSG_ID", // = 112; |
| "SHOW_RECT_MSG_ID", // = 113; |
| "LONG_PRESS_CENTER", // = 114; |
| "PREVENT_TOUCH_ID", // = 115; |
| "WEBCORE_NEED_TOUCH_EVENTS", // = 116; |
| "INVAL_RECT_MSG_ID", // = 117; |
| "REQUEST_KEYBOARD", // = 118; |
| "DO_MOTION_UP", // = 119; |
| "SHOW_FULLSCREEN", // = 120; |
| "HIDE_FULLSCREEN", // = 121; |
| "DOM_FOCUS_CHANGED", // = 122; |
| "REPLACE_BASE_CONTENT", // = 123; |
| "FORM_DID_BLUR", // = 124; |
| "RETURN_LABEL", // = 125; |
| "FIND_AGAIN", // = 126; |
| "CENTER_FIT_RECT", // = 127; |
| "REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID", // = 128; |
| "SET_SCROLLBAR_MODES", // = 129; |
| "SELECTION_STRING_CHANGED", // = 130; |
| "SET_TOUCH_HIGHLIGHT_RECTS", // = 131; |
| "SAVE_WEBARCHIVE_FINISHED", // = 132; |
| "SET_AUTOFILLABLE", // = 133; |
| "AUTOFILL_COMPLETE", // = 134; |
| "SELECT_AT", // = 135; |
| "SCREEN_ON", // = 136; |
| "ENTER_FULLSCREEN_VIDEO" // = 137; |
| }; |
| |
| // If the site doesn't use the viewport meta tag to specify the viewport, |
| // use DEFAULT_VIEWPORT_WIDTH as the default viewport width |
| static final int DEFAULT_VIEWPORT_WIDTH = 980; |
| |
| // normally we try to fit the content to the minimum preferred width |
| // calculated by the Webkit. To avoid the bad behavior when some site's |
| // minimum preferred width keeps growing when changing the viewport width or |
| // the minimum preferred width is huge, an upper limit is needed. |
| static int sMaxViewportWidth = DEFAULT_VIEWPORT_WIDTH; |
| |
| // initial scale in percent. 0 means using default. |
| private int mInitialScaleInPercent = 0; |
| |
| // Whether or not a scroll event should be sent to webkit. This is only set |
| // to false when restoring the scroll position. |
| private boolean mSendScrollEvent = true; |
| |
| private int mSnapScrollMode = SNAP_NONE; |
| private static final int SNAP_NONE = 0; |
| private static final int SNAP_LOCK = 1; // not a separate state |
| private static final int SNAP_X = 2; // may be combined with SNAP_LOCK |
| private static final int SNAP_Y = 4; // may be combined with SNAP_LOCK |
| private boolean mSnapPositive; |
| |
| // keep these in sync with their counterparts in WebView.cpp |
| private static final int DRAW_EXTRAS_NONE = 0; |
| private static final int DRAW_EXTRAS_FIND = 1; |
| private static final int DRAW_EXTRAS_SELECTION = 2; |
| private static final int DRAW_EXTRAS_CURSOR_RING = 3; |
| |
| // keep this in sync with WebCore:ScrollbarMode in WebKit |
| private static final int SCROLLBAR_AUTO = 0; |
| private static final int SCROLLBAR_ALWAYSOFF = 1; |
| // as we auto fade scrollbar, this is ignored. |
| private static final int SCROLLBAR_ALWAYSON = 2; |
| private int mHorizontalScrollBarMode = SCROLLBAR_AUTO; |
| private int mVerticalScrollBarMode = SCROLLBAR_AUTO; |
| |
| // constants for determining script injection strategy |
| private static final int ACCESSIBILITY_SCRIPT_INJECTION_UNDEFINED = -1; |
| private static final int ACCESSIBILITY_SCRIPT_INJECTION_OPTED_OUT = 0; |
| private static final int ACCESSIBILITY_SCRIPT_INJECTION_PROVIDED = 1; |
| |
| // the alias via which accessibility JavaScript interface is exposed |
| private static final String ALIAS_ACCESSIBILITY_JS_INTERFACE = "accessibility"; |
| |
| // JavaScript to inject the script chooser which will |
| // pick the right script for the current URL |
| private static final String ACCESSIBILITY_SCRIPT_CHOOSER_JAVASCRIPT = |
| "javascript:(function() {" + |
| " var chooser = document.createElement('script');" + |
| " chooser.type = 'text/javascript';" + |
| " chooser.src = 'https://ssl.gstatic.com/accessibility/javascript/android/AndroidScriptChooser.user.js';" + |
| " document.getElementsByTagName('head')[0].appendChild(chooser);" + |
| " })();"; |
| |
| // Regular expression that matches the "axs" URL parameter. |
| // The value of 0 means the accessibility script is opted out |
| // The value of 1 means the accessibility script is already injected |
| private static final String PATTERN_MATCH_AXS_URL_PARAMETER = "(\\?axs=(0|1))|(&axs=(0|1))"; |
| |
| // TextToSpeech instance exposed to JavaScript to the injected screenreader. |
| private TextToSpeech mTextToSpeech; |
| |
| // variable to cache the above pattern in case accessibility is enabled. |
| private Pattern mMatchAxsUrlParameterPattern; |
| |
| /** |
| * Max distance to overscroll by in pixels. |
| * This how far content can be pulled beyond its normal bounds by the user. |
| */ |
| private int mOverscrollDistance; |
| |
| /** |
| * Max distance to overfling by in pixels. |
| * This is how far flinged content can move beyond the end of its normal bounds. |
| */ |
| private int mOverflingDistance; |
| |
| private OverScrollGlow mOverScrollGlow; |
| |
| // Used to match key downs and key ups |
| private Vector<Integer> mKeysPressed; |
| |
| /* package */ static boolean mLogEvent = true; |
| |
| // for event log |
| private long mLastTouchUpTime = 0; |
| |
| private WebViewCore.AutoFillData mAutoFillData; |
| |
| private static boolean sNotificationsEnabled = true; |
| |
| /** |
| * URI scheme for telephone number |
| */ |
| public static final String SCHEME_TEL = "tel:"; |
| /** |
| * URI scheme for email address |
| */ |
| public static final String SCHEME_MAILTO = "mailto:"; |
| /** |
| * URI scheme for map address |
| */ |
| public static final String SCHEME_GEO = "geo:0,0?q="; |
| |
| private int mBackgroundColor = Color.WHITE; |
| |
| private static final long SELECT_SCROLL_INTERVAL = 1000 / 60; // 60 / second |
| private int mAutoScrollX = 0; |
| private int mAutoScrollY = 0; |
| private int mMinAutoScrollX = 0; |
| private int mMaxAutoScrollX = 0; |
| private int mMinAutoScrollY = 0; |
| private int mMaxAutoScrollY = 0; |
| private Rect mScrollingLayerBounds = new Rect(); |
| private boolean mSentAutoScrollMessage = false; |
| |
| // used for serializing asynchronously handled touch events. |
| private final TouchEventQueue mTouchEventQueue = new TouchEventQueue(); |
| |
| // Used to notify listeners of a new picture. |
| private PictureListener mPictureListener; |
| /** |
| * Interface to listen for new pictures as they change. |
| * @deprecated This interface is now obsolete. |
| */ |
| @Deprecated |
| public interface PictureListener { |
| /** |
| * Notify the listener that the picture has changed. |
| * @param view The WebView that owns the picture. |
| * @param picture The new picture. |
| * @deprecated This method is now obsolete. |
| */ |
| @Deprecated |
| public void onNewPicture(WebView view, Picture picture); |
| } |
| |
| // FIXME: Want to make this public, but need to change the API file. |
| public /*static*/ class HitTestResult { |
| /** |
| * Default HitTestResult, where the target is unknown |
| */ |
| public static final int UNKNOWN_TYPE = 0; |
| /** |
| * @deprecated This type is no longer used. |
| */ |
| @Deprecated |
| public static final int ANCHOR_TYPE = 1; |
| /** |
| * HitTestResult for hitting a phone number |
| */ |
| public static final int PHONE_TYPE = 2; |
| /** |
| * HitTestResult for hitting a map address |
| */ |
| public static final int GEO_TYPE = 3; |
| /** |
| * HitTestResult for hitting an email address |
| */ |
| public static final int EMAIL_TYPE = 4; |
| /** |
| * HitTestResult for hitting an HTML::img tag |
| */ |
| public static final int IMAGE_TYPE = 5; |
| /** |
| * @deprecated This type is no longer used. |
| */ |
| @Deprecated |
| public static final int IMAGE_ANCHOR_TYPE = 6; |
| /** |
| * HitTestResult for hitting a HTML::a tag with src=http |
| */ |
| public static final int SRC_ANCHOR_TYPE = 7; |
| /** |
| * HitTestResult for hitting a HTML::a tag with src=http + HTML::img |
| */ |
| public static final int SRC_IMAGE_ANCHOR_TYPE = 8; |
| /** |
| * HitTestResult for hitting an edit text area |
| */ |
| public static final int EDIT_TEXT_TYPE = 9; |
| |
| private int mType; |
| private String mExtra; |
| |
| HitTestResult() { |
| mType = UNKNOWN_TYPE; |
| } |
| |
| private void setType(int type) { |
| mType = type; |
| } |
| |
| private void setExtra(String extra) { |
| mExtra = extra; |
| } |
| |
| public int getType() { |
| return mType; |
| } |
| |
| public String getExtra() { |
| return mExtra; |
| } |
| } |
| |
| /** |
| * Construct a new WebView with a Context object. |
| * @param context A Context object used to access application assets. |
| */ |
| public WebView(Context context) { |
| this(context, null); |
| } |
| |
| /** |
| * Construct a new WebView with layout parameters. |
| * @param context A Context object used to access application assets. |
| * @param attrs An AttributeSet passed to our parent. |
| */ |
| public WebView(Context context, AttributeSet attrs) { |
| this(context, attrs, com.android.internal.R.attr.webViewStyle); |
| } |
| |
| /** |
| * Construct a new WebView with layout parameters and a default style. |
| * @param context A Context object used to access application assets. |
| * @param attrs An AttributeSet passed to our parent. |
| * @param defStyle The default style resource ID. |
| */ |
| public WebView(Context context, AttributeSet attrs, int defStyle) { |
| this(context, attrs, defStyle, false); |
| } |
| |
| /** |
| * Construct a new WebView with layout parameters and a default style. |
| * @param context A Context object used to access application assets. |
| * @param attrs An AttributeSet passed to our parent. |
| * @param defStyle The default style resource ID. |
| */ |
| public WebView(Context context, AttributeSet attrs, int defStyle, |
| boolean privateBrowsing) { |
| this(context, attrs, defStyle, null, privateBrowsing); |
| } |
| |
| /** |
| * Construct a new WebView with layout parameters, a default style and a set |
| * of custom Javscript interfaces to be added to the WebView at initialization |
| * time. This guarantees that these interfaces will be available when the JS |
| * context is initialized. |
| * @param context A Context object used to access application assets. |
| * @param attrs An AttributeSet passed to our parent. |
| * @param defStyle The default style resource ID. |
| * @param javaScriptInterfaces is a Map of interface names, as keys, and |
| * object implementing those interfaces, as values. |
| * @hide pending API council approval. |
| */ |
| protected WebView(Context context, AttributeSet attrs, int defStyle, |
| Map<String, Object> javaScriptInterfaces, boolean privateBrowsing) { |
| super(context, attrs, defStyle); |
| checkThread(); |
| |
| // Used by the chrome stack to find application paths |
| JniUtil.setContext(context); |
| |
| mCallbackProxy = new CallbackProxy(context, this); |
| mViewManager = new ViewManager(this); |
| L10nUtils.setApplicationContext(context.getApplicationContext()); |
| mWebViewCore = new WebViewCore(context, this, mCallbackProxy, javaScriptInterfaces); |
| mDatabase = WebViewDatabase.getInstance(context); |
| mScroller = new OverScroller(context, null, 0, 0, false); //TODO Use OverScroller's flywheel |
| mZoomManager = new ZoomManager(this, mCallbackProxy); |
| |
| /* The init method must follow the creation of certain member variables, |
| * such as the mZoomManager. |
| */ |
| init(); |
| setupPackageListener(context); |
| setupProxyListener(context); |
| updateMultiTouchSupport(context); |
| |
| if (privateBrowsing) { |
| startPrivateBrowsing(); |
| } |
| |
| mAutoFillData = new WebViewCore.AutoFillData(); |
| } |
| |
| private static class ProxyReceiver extends BroadcastReceiver { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (intent.getAction().equals(Proxy.PROXY_CHANGE_ACTION)) { |
| handleProxyBroadcast(intent); |
| } |
| } |
| } |
| |
| /* |
| * Receiver for PROXY_CHANGE_ACTION, will be null when it is not added handling broadcasts. |
| */ |
| private static ProxyReceiver sProxyReceiver; |
| |
| /* |
| * @param context This method expects this to be a valid context |
| */ |
| private static synchronized void setupProxyListener(Context context) { |
| if (sProxyReceiver != null || sNotificationsEnabled == false) { |
| return; |
| } |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(Proxy.PROXY_CHANGE_ACTION); |
| sProxyReceiver = new ProxyReceiver(); |
| Intent currentProxy = context.getApplicationContext().registerReceiver( |
| sProxyReceiver, filter); |
| if (currentProxy != null) { |
| handleProxyBroadcast(currentProxy); |
| } |
| } |
| |
| /* |
| * @param context This method expects this to be a valid context |
| */ |
| private static synchronized void disableProxyListener(Context context) { |
| if (sProxyReceiver == null) |
| return; |
| |
| context.getApplicationContext().unregisterReceiver(sProxyReceiver); |
| sProxyReceiver = null; |
| } |
| |
| private static void handleProxyBroadcast(Intent intent) { |
| ProxyProperties proxyProperties = (ProxyProperties)intent.getExtra(Proxy.EXTRA_PROXY_INFO); |
| if (proxyProperties == null || proxyProperties.getHost() == null) { |
| WebViewCore.sendStaticMessage(EventHub.PROXY_CHANGED, null); |
| return; |
| } |
| WebViewCore.sendStaticMessage(EventHub.PROXY_CHANGED, proxyProperties); |
| } |
| |
| /* |
| * A variable to track if there is a receiver added for ACTION_PACKAGE_ADDED |
| * or ACTION_PACKAGE_REMOVED. |
| */ |
| private static boolean sPackageInstallationReceiverAdded = false; |
| |
| /* |
| * A set of Google packages we monitor for the |
| * navigator.isApplicationInstalled() API. Add additional packages as |
| * needed. |
| */ |
| private static Set<String> sGoogleApps; |
| static { |
| sGoogleApps = new HashSet<String>(); |
| sGoogleApps.add("com.google.android.youtube"); |
| } |
| |
| private static class PackageListener extends BroadcastReceiver { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| final String action = intent.getAction(); |
| final String packageName = intent.getData().getSchemeSpecificPart(); |
| final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false); |
| if (Intent.ACTION_PACKAGE_REMOVED.equals(action) && replacing) { |
| // if it is replacing, refreshPlugins() when adding |
| return; |
| } |
| |
| if (sGoogleApps.contains(packageName)) { |
| if (Intent.ACTION_PACKAGE_ADDED.equals(action)) { |
| WebViewCore.sendStaticMessage(EventHub.ADD_PACKAGE_NAME, packageName); |
| } else { |
| WebViewCore.sendStaticMessage(EventHub.REMOVE_PACKAGE_NAME, packageName); |
| } |
| } |
| |
| PluginManager pm = PluginManager.getInstance(context); |
| if (pm.containsPluginPermissionAndSignatures(packageName)) { |
| pm.refreshPlugins(Intent.ACTION_PACKAGE_ADDED.equals(action)); |
| } |
| } |
| } |
| |
| private void setupPackageListener(Context context) { |
| |
| /* |
| * we must synchronize the instance check and the creation of the |
| * receiver to ensure that only ONE receiver exists for all WebView |
| * instances. |
| */ |
| synchronized (WebView.class) { |
| |
| // if the receiver already exists then we do not need to register it |
| // again |
| if (sPackageInstallationReceiverAdded) { |
| return; |
| } |
| |
| IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED); |
| filter.addAction(Intent.ACTION_PACKAGE_REMOVED); |
| filter.addDataScheme("package"); |
| BroadcastReceiver packageListener = new PackageListener(); |
| context.getApplicationContext().registerReceiver(packageListener, filter); |
| sPackageInstallationReceiverAdded = true; |
| } |
| |
| // check if any of the monitored apps are already installed |
| AsyncTask<Void, Void, Set<String>> task = new AsyncTask<Void, Void, Set<String>>() { |
| |
| @Override |
| protected Set<String> doInBackground(Void... unused) { |
| Set<String> installedPackages = new HashSet<String>(); |
| PackageManager pm = mContext.getPackageManager(); |
| for (String name : sGoogleApps) { |
| try { |
| PackageInfo pInfo = pm.getPackageInfo(name, |
| PackageManager.GET_ACTIVITIES | PackageManager.GET_SERVICES); |
| installedPackages.add(name); |
| } catch (PackageManager.NameNotFoundException e) { |
| // package not found |
| } |
| } |
| return installedPackages; |
| } |
| |
| // Executes on the UI thread |
| @Override |
| protected void onPostExecute(Set<String> installedPackages) { |
| if (mWebViewCore != null) { |
| mWebViewCore.sendMessage(EventHub.ADD_PACKAGE_NAMES, installedPackages); |
| } |
| } |
| }; |
| task.execute(); |
| } |
| |
| void updateMultiTouchSupport(Context context) { |
| mZoomManager.updateMultiTouchSupport(context); |
| } |
| |
| private void init() { |
| setWillNotDraw(false); |
| setFocusable(true); |
| setFocusableInTouchMode(true); |
| setClickable(true); |
| setLongClickable(true); |
| |
| final ViewConfiguration configuration = ViewConfiguration.get(getContext()); |
| int slop = configuration.getScaledTouchSlop(); |
| mTouchSlopSquare = slop * slop; |
| slop = configuration.getScaledDoubleTapSlop(); |
| mDoubleTapSlopSquare = slop * slop; |
| final float density = getContext().getResources().getDisplayMetrics().density; |
| // use one line height, 16 based on our current default font, for how |
| // far we allow a touch be away from the edge of a link |
| mNavSlop = (int) (16 * density); |
| mZoomManager.init(density); |
| mMaximumFling = configuration.getScaledMaximumFlingVelocity(); |
| |
| // Compute the inverse of the density squared. |
| DRAG_LAYER_INVERSE_DENSITY_SQUARED = 1 / (density * density); |
| |
| mOverscrollDistance = configuration.getScaledOverscrollDistance(); |
| mOverflingDistance = configuration.getScaledOverflingDistance(); |
| |
| setScrollBarStyle(super.getScrollBarStyle()); |
| // Initially use a size of two, since the user is likely to only hold |
| // down two keys at a time (shift + another key) |
| mKeysPressed = new Vector<Integer>(2); |
| mHTML5VideoViewProxy = null ; |
| } |
| |
| @Override |
| public boolean shouldDelayChildPressedState() { |
| return true; |
| } |
| |
| /** |
| * Adds accessibility APIs to JavaScript. |
| * |
| * Note: This method is responsible to performing the necessary |
| * check if the accessibility APIs should be exposed. |
| */ |
| private void addAccessibilityApisToJavaScript() { |
| if (AccessibilityManager.getInstance(mContext).isEnabled() |
| && getSettings().getJavaScriptEnabled()) { |
| // exposing the TTS for now ... |
| mTextToSpeech = new TextToSpeech(getContext(), null); |
| addJavascriptInterface(mTextToSpeech, ALIAS_ACCESSIBILITY_JS_INTERFACE); |
| } |
| } |
| |
| /** |
| * Removes accessibility APIs from JavaScript. |
| */ |
| private void removeAccessibilityApisFromJavaScript() { |
| // exposing the TTS for now ... |
| if (mTextToSpeech != null) { |
| removeJavascriptInterface(ALIAS_ACCESSIBILITY_JS_INTERFACE); |
| mTextToSpeech.shutdown(); |
| mTextToSpeech = null; |
| } |
| } |
| |
| @Override |
| public void setOverScrollMode(int mode) { |
| super.setOverScrollMode(mode); |
| if (mode != OVER_SCROLL_NEVER) { |
| if (mOverScrollGlow == null) { |
| mOverScrollGlow = new OverScrollGlow(this); |
| } |
| } else { |
| mOverScrollGlow = null; |
| } |
| } |
| |
| /* package */void updateDefaultZoomDensity(int zoomDensity) { |
| final float density = mContext.getResources().getDisplayMetrics().density |
| * 100 / zoomDensity; |
| mNavSlop = (int) (16 * density); |
| mZoomManager.updateDefaultZoomDensity(density); |
| } |
| |
| /* package */ boolean onSavePassword(String schemePlusHost, String username, |
| String password, final Message resumeMsg) { |
| boolean rVal = false; |
| if (resumeMsg == null) { |
| // null resumeMsg implies saving password silently |
| mDatabase.setUsernamePassword(schemePlusHost, username, password); |
| } else { |
| final Message remember = mPrivateHandler.obtainMessage( |
| REMEMBER_PASSWORD); |
| remember.getData().putString("host", schemePlusHost); |
| remember.getData().putString("username", username); |
| remember.getData().putString("password", password); |
| remember.obj = resumeMsg; |
| |
| final Message neverRemember = mPrivateHandler.obtainMessage( |
| NEVER_REMEMBER_PASSWORD); |
| neverRemember.getData().putString("host", schemePlusHost); |
| neverRemember.getData().putString("username", username); |
| neverRemember.getData().putString("password", password); |
| neverRemember.obj = resumeMsg; |
| |
| new AlertDialog.Builder(getContext()) |
| .setTitle(com.android.internal.R.string.save_password_label) |
| .setMessage(com.android.internal.R.string.save_password_message) |
| .setPositiveButton(com.android.internal.R.string.save_password_notnow, |
| new DialogInterface.OnClickListener() { |
| public void onClick(DialogInterface dialog, int which) { |
| resumeMsg.sendToTarget(); |
| } |
| }) |
| .setNeutralButton(com.android.internal.R.string.save_password_remember, |
| new DialogInterface.OnClickListener() { |
| public void onClick(DialogInterface dialog, int which) { |
| remember.sendToTarget(); |
| } |
| }) |
| .setNegativeButton(com.android.internal.R.string.save_password_never, |
| new DialogInterface.OnClickListener() { |
| public void onClick(DialogInterface dialog, int which) { |
| neverRemember.sendToTarget(); |
| } |
| }) |
| .setOnCancelListener(new OnCancelListener() { |
| public void onCancel(DialogInterface dialog) { |
| resumeMsg.sendToTarget(); |
| } |
| }).show(); |
| // Return true so that WebViewCore will pause while the dialog is |
| // up. |
| rVal = true; |
| } |
| return rVal; |
| } |
| |
| @Override |
| public void setScrollBarStyle(int style) { |
| if (style == View.SCROLLBARS_INSIDE_INSET |
| || style == View.SCROLLBARS_OUTSIDE_INSET) { |
| mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = false; |
| } else { |
| mOverlayHorizontalScrollbar = mOverlayVerticalScrollbar = true; |
| } |
| super.setScrollBarStyle(style); |
| } |
| |
| /** |
| * Specify whether the horizontal scrollbar has overlay style. |
| * @param overlay TRUE if horizontal scrollbar should have overlay style. |
| */ |
| public void setHorizontalScrollbarOverlay(boolean overlay) { |
| checkThread(); |
| mOverlayHorizontalScrollbar = overlay; |
| } |
| |
| /** |
| * Specify whether the vertical scrollbar has overlay style. |
| * @param overlay TRUE if vertical scrollbar should have overlay style. |
| */ |
| public void setVerticalScrollbarOverlay(boolean overlay) { |
| checkThread(); |
| mOverlayVerticalScrollbar = overlay; |
| } |
| |
| /** |
| * Return whether horizontal scrollbar has overlay style |
| * @return TRUE if horizontal scrollbar has overlay style. |
| */ |
| public boolean overlayHorizontalScrollbar() { |
| checkThread(); |
| return mOverlayHorizontalScrollbar; |
| } |
| |
| /** |
| * Return whether vertical scrollbar has overlay style |
| * @return TRUE if vertical scrollbar has overlay style. |
| */ |
| public boolean overlayVerticalScrollbar() { |
| checkThread(); |
| return mOverlayVerticalScrollbar; |
| } |
| |
| /* |
| * Return the width of the view where the content of WebView should render |
| * to. |
| * Note: this can be called from WebCoreThread. |
| */ |
| /* package */ int getViewWidth() { |
| if (!isVerticalScrollBarEnabled() || mOverlayVerticalScrollbar) { |
| return getWidth(); |
| } else { |
| return Math.max(0, getWidth() - getVerticalScrollbarWidth()); |
| } |
| } |
| |
| /** |
| * returns the height of the titlebarview (if any). Does not care about |
| * scrolling |
| * @hide |
| */ |
| protected int getTitleHeight() { |
| return mTitleBar != null ? mTitleBar.getHeight() : 0; |
| } |
| |
| /** |
| * Return the amount of the titlebarview (if any) that is visible |
| * |
| * @deprecated This method is now obsolete. |
| */ |
| public int getVisibleTitleHeight() { |
| checkThread(); |
| // need to restrict mScrollY due to over scroll |
| return Math.max(getTitleHeight() - Math.max(0, mScrollY), 0); |
| } |
| |
| /* |
| * Return the height of the view where the content of WebView should render |
| * to. Note that this excludes mTitleBar, if there is one. |
| * Note: this can be called from WebCoreThread. |
| */ |
| /* package */ int getViewHeight() { |
| return getViewHeightWithTitle() - getVisibleTitleHeight(); |
| } |
| |
| int getViewHeightWithTitle() { |
| int height = getHeight(); |
| if (isHorizontalScrollBarEnabled() && !mOverlayHorizontalScrollbar) { |
| height -= getHorizontalScrollbarHeight(); |
| } |
| return height; |
| } |
| |
| /** |
| * @return The SSL certificate for the main top-level page or null if |
| * there is no certificate (the site is not secure). |
| */ |
| public SslCertificate getCertificate() { |
| checkThread(); |
| return mCertificate; |
| } |
| |
| /** |
| * Sets the SSL certificate for the main top-level page. |
| */ |
| public void setCertificate(SslCertificate certificate) { |
| checkThread(); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "setCertificate=" + certificate); |
| } |
| // here, the certificate can be null (if the site is not secure) |
| mCertificate = certificate; |
| } |
| |
| //------------------------------------------------------------------------- |
| // Methods called by activity |
| //------------------------------------------------------------------------- |
| |
| /** |
| * Save the username and password for a particular host in the WebView's |
| * internal database. |
| * @param host The host that required the credentials. |
| * @param username The username for the given host. |
| * @param password The password for the given host. |
| */ |
| public void savePassword(String host, String username, String password) { |
| checkThread(); |
| mDatabase.setUsernamePassword(host, username, password); |
| } |
| |
| /** |
| * Set the HTTP authentication credentials for a given host and realm. |
| * |
| * @param host The host for the credentials. |
| * @param realm The realm for the credentials. |
| * @param username The username for the password. If it is null, it means |
| * password can't be saved. |
| * @param password The password |
| */ |
| public void setHttpAuthUsernamePassword(String host, String realm, |
| String username, String password) { |
| checkThread(); |
| mDatabase.setHttpAuthUsernamePassword(host, realm, username, password); |
| } |
| |
| /** |
| * Retrieve the HTTP authentication username and password for a given |
| * host & realm pair |
| * |
| * @param host The host for which the credentials apply. |
| * @param realm The realm for which the credentials apply. |
| * @return String[] if found, String[0] is username, which can be null and |
| * String[1] is password. Return null if it can't find anything. |
| */ |
| public String[] getHttpAuthUsernamePassword(String host, String realm) { |
| checkThread(); |
| return mDatabase.getHttpAuthUsernamePassword(host, realm); |
| } |
| |
| /** |
| * Remove Find or Select ActionModes, if active. |
| */ |
| private void clearActionModes() { |
| if (mSelectCallback != null) { |
| mSelectCallback.finish(); |
| } |
| if (mFindCallback != null) { |
| mFindCallback.finish(); |
| } |
| } |
| |
| /** |
| * Called to clear state when moving from one page to another, or changing |
| * in some other way that makes elements associated with the current page |
| * (such as WebTextView or ActionModes) no longer relevant. |
| */ |
| private void clearHelpers() { |
| clearTextEntry(); |
| clearActionModes(); |
| dismissFullScreenMode(); |
| } |
| |
| /** |
| * Destroy the internal state of the WebView. This method should be called |
| * after the WebView has been removed from the view system. No other |
| * methods may be called on a WebView after destroy. |
| */ |
| public void destroy() { |
| checkThread(); |
| destroyImpl(); |
| } |
| |
| private void destroyImpl() { |
| clearHelpers(); |
| if (mListBoxDialog != null) { |
| mListBoxDialog.dismiss(); |
| mListBoxDialog = null; |
| } |
| if (mNativeClass != 0) nativeStopGL(); |
| if (mWebViewCore != null) { |
| // Set the handlers to null before destroying WebViewCore so no |
| // more messages will be posted. |
| mCallbackProxy.setWebViewClient(null); |
| mCallbackProxy.setWebChromeClient(null); |
| // Tell WebViewCore to destroy itself |
| synchronized (this) { |
| WebViewCore webViewCore = mWebViewCore; |
| mWebViewCore = null; // prevent using partial webViewCore |
| webViewCore.destroy(); |
| } |
| // Remove any pending messages that might not be serviced yet. |
| mPrivateHandler.removeCallbacksAndMessages(null); |
| mCallbackProxy.removeCallbacksAndMessages(null); |
| // Wake up the WebCore thread just in case it is waiting for a |
| // JavaScript dialog. |
| synchronized (mCallbackProxy) { |
| mCallbackProxy.notify(); |
| } |
| } |
| if (mNativeClass != 0) { |
| nativeDestroy(); |
| mNativeClass = 0; |
| } |
| } |
| |
| /** |
| * Enables platform notifications of data state and proxy changes. |
| * Notifications are enabled by default. |
| * |
| * @deprecated This method is now obsolete. |
| */ |
| @Deprecated |
| public static void enablePlatformNotifications() { |
| checkThread(); |
| synchronized (WebView.class) { |
| Network.enablePlatformNotifications(); |
| sNotificationsEnabled = true; |
| Context context = JniUtil.getContext(); |
| if (context != null) |
| setupProxyListener(context); |
| } |
| } |
| |
| /** |
| * Disables platform notifications of data state and proxy changes. |
| * Notifications are enabled by default. |
| * |
| * @deprecated This method is now obsolete. |
| */ |
| @Deprecated |
| public static void disablePlatformNotifications() { |
| checkThread(); |
| synchronized (WebView.class) { |
| Network.disablePlatformNotifications(); |
| sNotificationsEnabled = false; |
| Context context = JniUtil.getContext(); |
| if (context != null) |
| disableProxyListener(context); |
| } |
| } |
| |
| /** |
| * Sets JavaScript engine flags. |
| * |
| * @param flags JS engine flags in a String |
| * |
| * @hide pending API solidification |
| */ |
| public void setJsFlags(String flags) { |
| checkThread(); |
| mWebViewCore.sendMessage(EventHub.SET_JS_FLAGS, flags); |
| } |
| |
| /** |
| * Inform WebView of the network state. This is used to set |
| * the JavaScript property window.navigator.isOnline and |
| * generates the online/offline event as specified in HTML5, sec. 5.7.7 |
| * @param networkUp boolean indicating if network is available |
| */ |
| public void setNetworkAvailable(boolean networkUp) { |
| checkThread(); |
| mWebViewCore.sendMessage(EventHub.SET_NETWORK_STATE, |
| networkUp ? 1 : 0, 0); |
| } |
| |
| /** |
| * Inform WebView about the current network type. |
| * {@hide} |
| */ |
| public void setNetworkType(String type, String subtype) { |
| checkThread(); |
| Map<String, String> map = new HashMap<String, String>(); |
| map.put("type", type); |
| map.put("subtype", subtype); |
| mWebViewCore.sendMessage(EventHub.SET_NETWORK_TYPE, map); |
| } |
| /** |
| * Save the state of this WebView used in |
| * {@link android.app.Activity#onSaveInstanceState}. Please note that this |
| * method no longer stores the display data for this WebView. The previous |
| * behavior could potentially leak files if {@link #restoreState} was never |
| * called. See {@link #savePicture} and {@link #restorePicture} for saving |
| * and restoring the display data. |
| * @param outState The Bundle to store the WebView state. |
| * @return The same copy of the back/forward list used to save the state. If |
| * saveState fails, the returned list will be null. |
| * @see #savePicture |
| * @see #restorePicture |
| */ |
| public WebBackForwardList saveState(Bundle outState) { |
| checkThread(); |
| if (outState == null) { |
| return null; |
| } |
| // We grab a copy of the back/forward list because a client of WebView |
| // may have invalidated the history list by calling clearHistory. |
| WebBackForwardList list = copyBackForwardList(); |
| final int currentIndex = list.getCurrentIndex(); |
| final int size = list.getSize(); |
| // We should fail saving the state if the list is empty or the index is |
| // not in a valid range. |
| if (currentIndex < 0 || currentIndex >= size || size == 0) { |
| return null; |
| } |
| outState.putInt("index", currentIndex); |
| // FIXME: This should just be a byte[][] instead of ArrayList but |
| // Parcel.java does not have the code to handle multi-dimensional |
| // arrays. |
| ArrayList<byte[]> history = new ArrayList<byte[]>(size); |
| for (int i = 0; i < size; i++) { |
| WebHistoryItem item = list.getItemAtIndex(i); |
| if (null == item) { |
| // FIXME: this shouldn't happen |
| // need to determine how item got set to null |
| Log.w(LOGTAG, "saveState: Unexpected null history item."); |
| return null; |
| } |
| byte[] data = item.getFlattenedData(); |
| if (data == null) { |
| // It would be very odd to not have any data for a given history |
| // item. And we will fail to rebuild the history list without |
| // flattened data. |
| return null; |
| } |
| history.add(data); |
| } |
| outState.putSerializable("history", history); |
| if (mCertificate != null) { |
| outState.putBundle("certificate", |
| SslCertificate.saveState(mCertificate)); |
| } |
| outState.putBoolean("privateBrowsingEnabled", isPrivateBrowsingEnabled()); |
| mZoomManager.saveZoomState(outState); |
| return list; |
| } |
| |
| /** |
| * Save the current display data to the Bundle given. Used in conjunction |
| * with {@link #saveState}. |
| * @param b A Bundle to store the display data. |
| * @param dest The file to store the serialized picture data. Will be |
| * overwritten with this WebView's picture data. |
| * @return True if the picture was successfully saved. |
| * @deprecated This method is now obsolete. |
| */ |
| @Deprecated |
| public boolean savePicture(Bundle b, final File dest) { |
| checkThread(); |
| if (dest == null || b == null) { |
| return false; |
| } |
| final Picture p = capturePicture(); |
| // Use a temporary file while writing to ensure the destination file |
| // contains valid data. |
| final File temp = new File(dest.getPath() + ".writing"); |
| new Thread(new Runnable() { |
| public void run() { |
| FileOutputStream out = null; |
| try { |
| out = new FileOutputStream(temp); |
| p.writeToStream(out); |
| // Writing the picture succeeded, rename the temporary file |
| // to the destination. |
| temp.renameTo(dest); |
| } catch (Exception e) { |
| // too late to do anything about it. |
| } finally { |
| if (out != null) { |
| try { |
| out.close(); |
| } catch (Exception e) { |
| // Can't do anything about that |
| } |
| } |
| temp.delete(); |
| } |
| } |
| }).start(); |
| // now update the bundle |
| b.putInt("scrollX", mScrollX); |
| b.putInt("scrollY", mScrollY); |
| mZoomManager.saveZoomState(b); |
| return true; |
| } |
| |
| private void restoreHistoryPictureFields(Picture p, Bundle b) { |
| int sx = b.getInt("scrollX", 0); |
| int sy = b.getInt("scrollY", 0); |
| |
| mDrawHistory = true; |
| mHistoryPicture = p; |
| |
| mScrollX = sx; |
| mScrollY = sy; |
| mZoomManager.restoreZoomState(b); |
| final float scale = mZoomManager.getScale(); |
| mHistoryWidth = Math.round(p.getWidth() * scale); |
| mHistoryHeight = Math.round(p.getHeight() * scale); |
| |
| invalidate(); |
| } |
| |
| /** |
| * Restore the display data that was save in {@link #savePicture}. Used in |
| * conjunction with {@link #restoreState}. |
| * @param b A Bundle containing the saved display data. |
| * @param src The file where the picture data was stored. |
| * @return True if the picture was successfully restored. |
| * @deprecated This method is now obsolete. |
| */ |
| @Deprecated |
| public boolean restorePicture(Bundle b, File src) { |
| checkThread(); |
| if (src == null || b == null) { |
| return false; |
| } |
| if (!src.exists()) { |
| return false; |
| } |
| try { |
| final FileInputStream in = new FileInputStream(src); |
| final Bundle copy = new Bundle(b); |
| new Thread(new Runnable() { |
| public void run() { |
| try { |
| final Picture p = Picture.createFromStream(in); |
| if (p != null) { |
| // Post a runnable on the main thread to update the |
| // history picture fields. |
| mPrivateHandler.post(new Runnable() { |
| public void run() { |
| restoreHistoryPictureFields(p, copy); |
| } |
| }); |
| } |
| } finally { |
| try { |
| in.close(); |
| } catch (Exception e) { |
| // Nothing we can do now. |
| } |
| } |
| } |
| }).start(); |
| } catch (FileNotFoundException e){ |
| e.printStackTrace(); |
| } |
| return true; |
| } |
| |
| /** |
| * Saves the view data to the output stream. The output is highly |
| * version specific, and may not be able to be loaded by newer versions |
| * of WebView. |
| * @param stream The {@link OutputStream} to save to |
| * @return True if saved successfully |
| * @hide |
| */ |
| public boolean saveViewState(OutputStream stream) { |
| try { |
| return ViewStateSerializer.serializeViewState(stream, this); |
| } catch (IOException e) { |
| Log.w(LOGTAG, "Failed to saveViewState", e); |
| } |
| return false; |
| } |
| |
| /** |
| * Loads the view data from the input stream. See |
| * {@link #saveViewState(OutputStream)} for more information. |
| * @param stream The {@link InputStream} to load from |
| * @return True if loaded successfully |
| * @hide |
| */ |
| public boolean loadViewState(InputStream stream) { |
| try { |
| mLoadedPicture = ViewStateSerializer.deserializeViewState(stream, this); |
| mBlockWebkitViewMessages = true; |
| setNewPicture(mLoadedPicture, true); |
| return true; |
| } catch (IOException e) { |
| Log.w(LOGTAG, "Failed to loadViewState", e); |
| } |
| return false; |
| } |
| |
| /** |
| * Clears the view state set with {@link #loadViewState(InputStream)}. |
| * This WebView will then switch to showing the content from webkit |
| * @hide |
| */ |
| public void clearViewState() { |
| mBlockWebkitViewMessages = false; |
| mLoadedPicture = null; |
| invalidate(); |
| } |
| |
| /** |
| * Restore the state of this WebView from the given map used in |
| * {@link android.app.Activity#onRestoreInstanceState}. This method should |
| * be called to restore the state of the WebView before using the object. If |
| * it is called after the WebView has had a chance to build state (load |
| * pages, create a back/forward list, etc.) there may be undesirable |
| * side-effects. Please note that this method no longer restores the |
| * display data for this WebView. See {@link #savePicture} and {@link |
| * #restorePicture} for saving and restoring the display data. |
| * @param inState The incoming Bundle of state. |
| * @return The restored back/forward list or null if restoreState failed. |
| * @see #savePicture |
| * @see #restorePicture |
| */ |
| public WebBackForwardList restoreState(Bundle inState) { |
| checkThread(); |
| WebBackForwardList returnList = null; |
| if (inState == null) { |
| return returnList; |
| } |
| if (inState.containsKey("index") && inState.containsKey("history")) { |
| mCertificate = SslCertificate.restoreState( |
| inState.getBundle("certificate")); |
| |
| final WebBackForwardList list = mCallbackProxy.getBackForwardList(); |
| final int index = inState.getInt("index"); |
| // We can't use a clone of the list because we need to modify the |
| // shared copy, so synchronize instead to prevent concurrent |
| // modifications. |
| synchronized (list) { |
| final List<byte[]> history = |
| (List<byte[]>) inState.getSerializable("history"); |
| final int size = history.size(); |
| // Check the index bounds so we don't crash in native code while |
| // restoring the history index. |
| if (index < 0 || index >= size) { |
| return null; |
| } |
| for (int i = 0; i < size; i++) { |
| byte[] data = history.remove(0); |
| if (data == null) { |
| // If we somehow have null data, we cannot reconstruct |
| // the item and thus our history list cannot be rebuilt. |
| return null; |
| } |
| WebHistoryItem item = new WebHistoryItem(data); |
| list.addHistoryItem(item); |
| } |
| // Grab the most recent copy to return to the caller. |
| returnList = copyBackForwardList(); |
| // Update the copy to have the correct index. |
| returnList.setCurrentIndex(index); |
| } |
| // Restore private browsing setting. |
| if (inState.getBoolean("privateBrowsingEnabled")) { |
| getSettings().setPrivateBrowsingEnabled(true); |
| } |
| mZoomManager.restoreZoomState(inState); |
| // Remove all pending messages because we are restoring previous |
| // state. |
| mWebViewCore.removeMessages(); |
| // Send a restore state message. |
| mWebViewCore.sendMessage(EventHub.RESTORE_STATE, index); |
| } |
| return returnList; |
| } |
| |
| /** |
| * Load the given url with the extra headers. |
| * @param url The url of the resource to load. |
| * @param extraHeaders The extra headers sent with this url. This should not |
| * include the common headers like "user-agent". If it does, it |
| * will be replaced by the intrinsic value of the WebView. |
| */ |
| public void loadUrl(String url, Map<String, String> extraHeaders) { |
| checkThread(); |
| loadUrlImpl(url, extraHeaders); |
| } |
| |
| private void loadUrlImpl(String url, Map<String, String> extraHeaders) { |
| switchOutDrawHistory(); |
| WebViewCore.GetUrlData arg = new WebViewCore.GetUrlData(); |
| arg.mUrl = url; |
| arg.mExtraHeaders = extraHeaders; |
| mWebViewCore.sendMessage(EventHub.LOAD_URL, arg); |
| clearHelpers(); |
| } |
| |
| /** |
| * Load the given url. |
| * @param url The url of the resource to load. |
| */ |
| public void loadUrl(String url) { |
| checkThread(); |
| loadUrlImpl(url); |
| } |
| |
| private void loadUrlImpl(String url) { |
| if (url == null) { |
| return; |
| } |
| loadUrlImpl(url, null); |
| } |
| |
| /** |
| * Load the url with postData using "POST" method into the WebView. If url |
| * is not a network url, it will be loaded with {link |
| * {@link #loadUrl(String)} instead. |
| * |
| * @param url The url of the resource to load. |
| * @param postData The data will be passed to "POST" request. |
| */ |
| public void postUrl(String url, byte[] postData) { |
| checkThread(); |
| if (URLUtil.isNetworkUrl(url)) { |
| switchOutDrawHistory(); |
| WebViewCore.PostUrlData arg = new WebViewCore.PostUrlData(); |
| arg.mUrl = url; |
| arg.mPostData = postData; |
| mWebViewCore.sendMessage(EventHub.POST_URL, arg); |
| clearHelpers(); |
| } else { |
| loadUrlImpl(url); |
| } |
| } |
| |
| /** |
| * Load the given data into the WebView using a 'data' scheme URL. Content |
| * loaded in this way does not have the ability to load content from the |
| * network. |
| * <p> |
| * If the value of the encoding parameter is 'base64', then the data must |
| * be encoded as base64. Otherwise, the data must use ASCII encoding for |
| * octets inside the range of safe URL characters and use the standard %xx |
| * hex encoding of URLs for octets outside that range. |
| * @param data A String of data in the given encoding. |
| * @param mimeType The MIMEType of the data, e.g. 'text/html'. |
| * @param encoding The encoding of the data. |
| */ |
| public void loadData(String data, String mimeType, String encoding) { |
| checkThread(); |
| loadDataImpl(data, mimeType, encoding); |
| } |
| |
| private void loadDataImpl(String data, String mimeType, String encoding) { |
| StringBuilder dataUrl = new StringBuilder("data:"); |
| dataUrl.append(mimeType); |
| if ("base64".equals(encoding)) { |
| dataUrl.append(";base64"); |
| } |
| dataUrl.append(","); |
| dataUrl.append(data); |
| loadUrlImpl(dataUrl.toString()); |
| } |
| |
| /** |
| * Load the given data into the WebView, use the provided URL as the base |
| * URL for the content. The base URL is the URL that represents the page |
| * that is loaded through this interface. As such, it is used to resolve any |
| * relative URLs. The historyUrl is used for the history entry. |
| * <p> |
| * Note that content specified in this way can access local device files |
| * (via 'file' scheme URLs) only if baseUrl specifies a scheme other than |
| * 'http', 'https', 'ftp', 'ftps', 'about' or 'javascript'. |
| * @param baseUrl Url to resolve relative paths with, if null defaults to |
| * "about:blank" |
| * @param data A String of data in the given encoding. |
| * @param mimeType The MIMEType of the data. i.e. text/html. If null, |
| * defaults to "text/html" |
| * @param encoding The encoding of the data. i.e. utf-8, us-ascii |
| * @param historyUrl URL to use as the history entry. Can be null. |
| */ |
| public void loadDataWithBaseURL(String baseUrl, String data, |
| String mimeType, String encoding, String historyUrl) { |
| checkThread(); |
| |
| if (baseUrl != null && baseUrl.toLowerCase().startsWith("data:")) { |
| loadDataImpl(data, mimeType, encoding); |
| return; |
| } |
| switchOutDrawHistory(); |
| WebViewCore.BaseUrlData arg = new WebViewCore.BaseUrlData(); |
| arg.mBaseUrl = baseUrl; |
| arg.mData = data; |
| arg.mMimeType = mimeType; |
| arg.mEncoding = encoding; |
| arg.mHistoryUrl = historyUrl; |
| mWebViewCore.sendMessage(EventHub.LOAD_DATA, arg); |
| clearHelpers(); |
| } |
| |
| /** |
| * Saves the current view as a web archive. |
| * |
| * @param filename The filename where the archive should be placed. |
| */ |
| public void saveWebArchive(String filename) { |
| checkThread(); |
| saveWebArchiveImpl(filename, false, null); |
| } |
| |
| /* package */ static class SaveWebArchiveMessage { |
| SaveWebArchiveMessage (String basename, boolean autoname, ValueCallback<String> callback) { |
| mBasename = basename; |
| mAutoname = autoname; |
| mCallback = callback; |
| } |
| |
| /* package */ final String mBasename; |
| /* package */ final boolean mAutoname; |
| /* package */ final ValueCallback<String> mCallback; |
| /* package */ String mResultFile; |
| } |
| |
| /** |
| * Saves the current view as a web archive. |
| * |
| * @param basename The filename where the archive should be placed. |
| * @param autoname If false, takes basename to be a file. If true, basename |
| * is assumed to be a directory in which a filename will be |
| * chosen according to the url of the current page. |
| * @param callback Called after the web archive has been saved. The |
| * parameter for onReceiveValue will either be the filename |
| * under which the file was saved, or null if saving the |
| * file failed. |
| */ |
| public void saveWebArchive(String basename, boolean autoname, ValueCallback<String> callback) { |
| checkThread(); |
| saveWebArchiveImpl(basename, autoname, callback); |
| } |
| |
| private void saveWebArchiveImpl(String basename, boolean autoname, |
| ValueCallback<String> callback) { |
| mWebViewCore.sendMessage(EventHub.SAVE_WEBARCHIVE, |
| new SaveWebArchiveMessage(basename, autoname, callback)); |
| } |
| |
| /** |
| * Stop the current load. |
| */ |
| public void stopLoading() { |
| checkThread(); |
| // TODO: should we clear all the messages in the queue before sending |
| // STOP_LOADING? |
| switchOutDrawHistory(); |
| mWebViewCore.sendMessage(EventHub.STOP_LOADING); |
| } |
| |
| /** |
| * Reload the current url. |
| */ |
| public void reload() { |
| checkThread(); |
| clearHelpers(); |
| switchOutDrawHistory(); |
| mWebViewCore.sendMessage(EventHub.RELOAD); |
| } |
| |
| /** |
| * Return true if this WebView has a back history item. |
| * @return True iff this WebView has a back history item. |
| */ |
| public boolean canGoBack() { |
| checkThread(); |
| WebBackForwardList l = mCallbackProxy.getBackForwardList(); |
| synchronized (l) { |
| if (l.getClearPending()) { |
| return false; |
| } else { |
| return l.getCurrentIndex() > 0; |
| } |
| } |
| } |
| |
| /** |
| * Go back in the history of this WebView. |
| */ |
| public void goBack() { |
| checkThread(); |
| goBackOrForwardImpl(-1); |
| } |
| |
| /** |
| * Return true if this WebView has a forward history item. |
| * @return True iff this Webview has a forward history item. |
| */ |
| public boolean canGoForward() { |
| checkThread(); |
| WebBackForwardList l = mCallbackProxy.getBackForwardList(); |
| synchronized (l) { |
| if (l.getClearPending()) { |
| return false; |
| } else { |
| return l.getCurrentIndex() < l.getSize() - 1; |
| } |
| } |
| } |
| |
| /** |
| * Go forward in the history of this WebView. |
| */ |
| public void goForward() { |
| checkThread(); |
| goBackOrForwardImpl(1); |
| } |
| |
| /** |
| * Return true if the page can go back or forward the given |
| * number of steps. |
| * @param steps The negative or positive number of steps to move the |
| * history. |
| */ |
| public boolean canGoBackOrForward(int steps) { |
| checkThread(); |
| WebBackForwardList l = mCallbackProxy.getBackForwardList(); |
| synchronized (l) { |
| if (l.getClearPending()) { |
| return false; |
| } else { |
| int newIndex = l.getCurrentIndex() + steps; |
| return newIndex >= 0 && newIndex < l.getSize(); |
| } |
| } |
| } |
| |
| /** |
| * Go to the history item that is the number of steps away from |
| * the current item. Steps is negative if backward and positive |
| * if forward. |
| * @param steps The number of steps to take back or forward in the back |
| * forward list. |
| */ |
| public void goBackOrForward(int steps) { |
| checkThread(); |
| goBackOrForwardImpl(steps); |
| } |
| |
| private void goBackOrForwardImpl(int steps) { |
| goBackOrForward(steps, false); |
| } |
| |
| private void goBackOrForward(int steps, boolean ignoreSnapshot) { |
| if (steps != 0) { |
| clearHelpers(); |
| mWebViewCore.sendMessage(EventHub.GO_BACK_FORWARD, steps, |
| ignoreSnapshot ? 1 : 0); |
| } |
| } |
| |
| /** |
| * Returns true if private browsing is enabled in this WebView. |
| */ |
| public boolean isPrivateBrowsingEnabled() { |
| checkThread(); |
| return getSettings().isPrivateBrowsingEnabled(); |
| } |
| |
| private void startPrivateBrowsing() { |
| getSettings().setPrivateBrowsingEnabled(true); |
| } |
| |
| private boolean extendScroll(int y) { |
| int finalY = mScroller.getFinalY(); |
| int newY = pinLocY(finalY + y); |
| if (newY == finalY) return false; |
| mScroller.setFinalY(newY); |
| mScroller.extendDuration(computeDuration(0, y)); |
| return true; |
| } |
| |
| /** |
| * Scroll the contents of the view up by half the view size |
| * @param top true to jump to the top of the page |
| * @return true if the page was scrolled |
| */ |
| public boolean pageUp(boolean top) { |
| checkThread(); |
| if (mNativeClass == 0) { |
| return false; |
| } |
| nativeClearCursor(); // start next trackball movement from page edge |
| if (top) { |
| // go to the top of the document |
| return pinScrollTo(mScrollX, 0, true, 0); |
| } |
| // Page up |
| int h = getHeight(); |
| int y; |
| if (h > 2 * PAGE_SCROLL_OVERLAP) { |
| y = -h + PAGE_SCROLL_OVERLAP; |
| } else { |
| y = -h / 2; |
| } |
| return mScroller.isFinished() ? pinScrollBy(0, y, true, 0) |
| : extendScroll(y); |
| } |
| |
| /** |
| * Scroll the contents of the view down by half the page size |
| * @param bottom true to jump to bottom of page |
| * @return true if the page was scrolled |
| */ |
| public boolean pageDown(boolean bottom) { |
| checkThread(); |
| if (mNativeClass == 0) { |
| return false; |
| } |
| nativeClearCursor(); // start next trackball movement from page edge |
| if (bottom) { |
| return pinScrollTo(mScrollX, computeRealVerticalScrollRange(), true, 0); |
| } |
| // Page down. |
| int h = getHeight(); |
| int y; |
| if (h > 2 * PAGE_SCROLL_OVERLAP) { |
| y = h - PAGE_SCROLL_OVERLAP; |
| } else { |
| y = h / 2; |
| } |
| return mScroller.isFinished() ? pinScrollBy(0, y, true, 0) |
| : extendScroll(y); |
| } |
| |
| /** |
| * Clear the view so that onDraw() will draw nothing but white background, |
| * and onMeasure() will return 0 if MeasureSpec is not MeasureSpec.EXACTLY |
| */ |
| public void clearView() { |
| checkThread(); |
| mContentWidth = 0; |
| mContentHeight = 0; |
| setBaseLayer(0, null, false, false); |
| mWebViewCore.sendMessage(EventHub.CLEAR_CONTENT); |
| } |
| |
| /** |
| * Return a new picture that captures the current display of the webview. |
| * This is a copy of the display, and will be unaffected if the webview |
| * later loads a different URL. |
| * |
| * @return a picture containing the current contents of the view. Note this |
| * picture is of the entire document, and is not restricted to the |
| * bounds of the view. |
| */ |
| public Picture capturePicture() { |
| checkThread(); |
| if (mNativeClass == 0) return null; |
| Picture result = new Picture(); |
| nativeCopyBaseContentToPicture(result); |
| return result; |
| } |
| |
| /** |
| * Return true if the browser is displaying a TextView for text input. |
| */ |
| private boolean inEditingMode() { |
| return mWebTextView != null && mWebTextView.getParent() != null; |
| } |
| |
| /** |
| * Remove the WebTextView. |
| */ |
| private void clearTextEntry() { |
| if (inEditingMode()) { |
| mWebTextView.remove(); |
| } else { |
| // The keyboard may be open with the WebView as the served view |
| hideSoftKeyboard(); |
| } |
| } |
| |
| /** |
| * Return the current scale of the WebView |
| * @return The current scale. |
| */ |
| public float getScale() { |
| checkThread(); |
| return mZoomManager.getScale(); |
| } |
| |
| /** |
| * Set the initial scale for the WebView. 0 means default. If |
| * {@link WebSettings#getUseWideViewPort()} is true, it zooms out all the |
| * way. Otherwise it starts with 100%. If initial scale is greater than 0, |
| * WebView starts will this value as initial scale. |
| * |
| * @param scaleInPercent The initial scale in percent. |
| */ |
| public void setInitialScale(int scaleInPercent) { |
| checkThread(); |
| mZoomManager.setInitialScaleInPercent(scaleInPercent); |
| } |
| |
| /** |
| * Invoke the graphical zoom picker widget for this WebView. This will |
| * result in the zoom widget appearing on the screen to control the zoom |
| * level of this WebView. |
| */ |
| public void invokeZoomPicker() { |
| checkThread(); |
| if (!getSettings().supportZoom()) { |
| Log.w(LOGTAG, "This WebView doesn't support zoom."); |
| return; |
| } |
| clearHelpers(); |
| mZoomManager.invokeZoomPicker(); |
| } |
| |
| /** |
| * Return a HitTestResult based on the current cursor node. If a HTML::a tag |
| * is found and the anchor has a non-JavaScript url, the HitTestResult type |
| * is set to SRC_ANCHOR_TYPE and the url is set in the "extra" field. If the |
| * anchor does not have a url or if it is a JavaScript url, the type will |
| * be UNKNOWN_TYPE and the url has to be retrieved through |
| * {@link #requestFocusNodeHref} asynchronously. If a HTML::img tag is |
| * found, the HitTestResult type is set to IMAGE_TYPE and the url is set in |
| * the "extra" field. A type of |
| * SRC_IMAGE_ANCHOR_TYPE indicates an anchor with a url that has an image as |
| * a child node. If a phone number is found, the HitTestResult type is set |
| * to PHONE_TYPE and the phone number is set in the "extra" field of |
| * HitTestResult. If a map address is found, the HitTestResult type is set |
| * to GEO_TYPE and the address is set in the "extra" field of HitTestResult. |
| * If an email address is found, the HitTestResult type is set to EMAIL_TYPE |
| * and the email is set in the "extra" field of HitTestResult. Otherwise, |
| * HitTestResult type is set to UNKNOWN_TYPE. |
| */ |
| public HitTestResult getHitTestResult() { |
| checkThread(); |
| return hitTestResult(mInitialHitTestResult); |
| } |
| |
| private HitTestResult hitTestResult(HitTestResult fallback) { |
| if (mNativeClass == 0) { |
| return null; |
| } |
| |
| HitTestResult result = new HitTestResult(); |
| if (nativeHasCursorNode()) { |
| if (nativeCursorIsTextInput()) { |
| result.setType(HitTestResult.EDIT_TEXT_TYPE); |
| } else { |
| String text = nativeCursorText(); |
| if (text != null) { |
| if (text.startsWith(SCHEME_TEL)) { |
| result.setType(HitTestResult.PHONE_TYPE); |
| result.setExtra(text.substring(SCHEME_TEL.length())); |
| } else if (text.startsWith(SCHEME_MAILTO)) { |
| result.setType(HitTestResult.EMAIL_TYPE); |
| result.setExtra(text.substring(SCHEME_MAILTO.length())); |
| } else if (text.startsWith(SCHEME_GEO)) { |
| result.setType(HitTestResult.GEO_TYPE); |
| result.setExtra(URLDecoder.decode(text |
| .substring(SCHEME_GEO.length()))); |
| } else if (nativeCursorIsAnchor()) { |
| result.setType(HitTestResult.SRC_ANCHOR_TYPE); |
| result.setExtra(text); |
| } |
| } |
| } |
| } else if (fallback != null) { |
| /* If webkit causes a rebuild while the long press is in progress, |
| * the cursor node may be reset, even if it is still around. This |
| * uses the cursor node saved when the touch began. Since the |
| * nativeImageURI below only changes the result if it is successful, |
| * this uses the data beneath the touch if available or the original |
| * tap data otherwise. |
| */ |
| Log.v(LOGTAG, "hitTestResult use fallback"); |
| result = fallback; |
| } |
| int type = result.getType(); |
| if (type == HitTestResult.UNKNOWN_TYPE |
| || type == HitTestResult.SRC_ANCHOR_TYPE) { |
| // Now check to see if it is an image. |
| int contentX = viewToContentX(mLastTouchX + mScrollX); |
| int contentY = viewToContentY(mLastTouchY + mScrollY); |
| String text = nativeImageURI(contentX, contentY); |
| if (text != null) { |
| result.setType(type == HitTestResult.UNKNOWN_TYPE ? |
| HitTestResult.IMAGE_TYPE : |
| HitTestResult.SRC_IMAGE_ANCHOR_TYPE); |
| result.setExtra(text); |
| } |
| } |
| return result; |
| } |
| |
| // Called by JNI when the DOM has changed the focus. Clear the focus so |
| // that new keys will go to the newly focused field |
| private void domChangedFocus() { |
| if (inEditingMode()) { |
| mPrivateHandler.obtainMessage(DOM_FOCUS_CHANGED).sendToTarget(); |
| } |
| } |
| /** |
| * Request the anchor or image element URL at the last tapped point. |
| * If hrefMsg is null, this method returns immediately and does not |
| * dispatch hrefMsg to its target. If the tapped point hits an image, |
| * an anchor, or an image in an anchor, the message associates |
| * strings in named keys in its data. The value paired with the key |
| * may be an empty string. |
| * |
| * @param hrefMsg This message will be dispatched with the result of the |
| * request. The message data contains three keys: |
| * - "url" returns the anchor's href attribute. |
| * - "title" returns the anchor's text. |
| * - "src" returns the image's src attribute. |
| */ |
| public void requestFocusNodeHref(Message hrefMsg) { |
| checkThread(); |
| if (hrefMsg == null) { |
| return; |
| } |
| int contentX = viewToContentX(mLastTouchX + mScrollX); |
| int contentY = viewToContentY(mLastTouchY + mScrollY); |
| if (nativeHasCursorNode()) { |
| Rect cursorBounds = nativeGetCursorRingBounds(); |
| if (!cursorBounds.contains(contentX, contentY)) { |
| int slop = viewToContentDimension(mNavSlop); |
| cursorBounds.inset(-slop, -slop); |
| if (cursorBounds.contains(contentX, contentY)) { |
| contentX = (int) cursorBounds.centerX(); |
| contentY = (int) cursorBounds.centerY(); |
| } |
| } |
| } |
| mWebViewCore.sendMessage(EventHub.REQUEST_CURSOR_HREF, |
| contentX, contentY, hrefMsg); |
| } |
| |
| /** |
| * Request the url of the image last touched by the user. msg will be sent |
| * to its target with a String representing the url as its object. |
| * |
| * @param msg This message will be dispatched with the result of the request |
| * as the data member with "url" as key. The result can be null. |
| */ |
| public void requestImageRef(Message msg) { |
| checkThread(); |
| if (0 == mNativeClass) return; // client isn't initialized |
| int contentX = viewToContentX(mLastTouchX + mScrollX); |
| int contentY = viewToContentY(mLastTouchY + mScrollY); |
| String ref = nativeImageURI(contentX, contentY); |
| Bundle data = msg.getData(); |
| data.putString("url", ref); |
| msg.setData(data); |
| msg.sendToTarget(); |
| } |
| |
| static int pinLoc(int x, int viewMax, int docMax) { |
| // Log.d(LOGTAG, "-- pinLoc " + x + " " + viewMax + " " + docMax); |
| if (docMax < viewMax) { // the doc has room on the sides for "blank" |
| // pin the short document to the top/left of the screen |
| x = 0; |
| // Log.d(LOGTAG, "--- center " + x); |
| } else if (x < 0) { |
| x = 0; |
| // Log.d(LOGTAG, "--- zero"); |
| } else if (x + viewMax > docMax) { |
| x = docMax - viewMax; |
| // Log.d(LOGTAG, "--- pin " + x); |
| } |
| return x; |
| } |
| |
| // Expects x in view coordinates |
| int pinLocX(int x) { |
| if (mInOverScrollMode) return x; |
| return pinLoc(x, getViewWidth(), computeRealHorizontalScrollRange()); |
| } |
| |
| // Expects y in view coordinates |
| int pinLocY(int y) { |
| if (mInOverScrollMode) return y; |
| return pinLoc(y, getViewHeightWithTitle(), |
| computeRealVerticalScrollRange() + getTitleHeight()); |
| } |
| |
| /** |
| * A title bar which is embedded in this WebView, and scrolls along with it |
| * vertically, but not horizontally. |
| */ |
| private View mTitleBar; |
| |
| /** |
| * the title bar rendering gravity |
| */ |
| private int mTitleGravity; |
| |
| /** |
| * Add or remove a title bar to be embedded into the WebView, and scroll |
| * along with it vertically, while remaining in view horizontally. Pass |
| * null to remove the title bar from the WebView, and return to drawing |
| * the WebView normally without translating to account for the title bar. |
| * @hide |
| */ |
| public void setEmbeddedTitleBar(View v) { |
| if (mTitleBar == v) return; |
| if (mTitleBar != null) { |
| removeView(mTitleBar); |
| } |
| if (null != v) { |
| addView(v, new AbsoluteLayout.LayoutParams( |
| ViewGroup.LayoutParams.MATCH_PARENT, |
| ViewGroup.LayoutParams.WRAP_CONTENT, 0, 0)); |
| } |
| mTitleBar = v; |
| } |
| |
| /** |
| * Set where to render the embedded title bar |
| * NO_GRAVITY at the top of the page |
| * TOP at the top of the screen |
| * @hide |
| */ |
| public void setTitleBarGravity(int gravity) { |
| mTitleGravity = gravity; |
| // force refresh |
| invalidate(); |
| } |
| |
| /** |
| * Given a distance in view space, convert it to content space. Note: this |
| * does not reflect translation, just scaling, so this should not be called |
| * with coordinates, but should be called for dimensions like width or |
| * height. |
| */ |
| private int viewToContentDimension(int d) { |
| return Math.round(d * mZoomManager.getInvScale()); |
| } |
| |
| /** |
| * Given an x coordinate in view space, convert it to content space. Also |
| * may be used for absolute heights (such as for the WebTextView's |
| * textSize, which is unaffected by the height of the title bar). |
| */ |
| /*package*/ int viewToContentX(int x) { |
| return viewToContentDimension(x); |
| } |
| |
| /** |
| * Given a y coordinate in view space, convert it to content space. |
| * Takes into account the height of the title bar if there is one |
| * embedded into the WebView. |
| */ |
| /*package*/ int viewToContentY(int y) { |
| return viewToContentDimension(y - getTitleHeight()); |
| } |
| |
| /** |
| * Given a x coordinate in view space, convert it to content space. |
| * Returns the result as a float. |
| */ |
| private float viewToContentXf(int x) { |
| return x * mZoomManager.getInvScale(); |
| } |
| |
| /** |
| * Given a y coordinate in view space, convert it to content space. |
| * Takes into account the height of the title bar if there is one |
| * embedded into the WebView. Returns the result as a float. |
| */ |
| private float viewToContentYf(int y) { |
| return (y - getTitleHeight()) * mZoomManager.getInvScale(); |
| } |
| |
| /** |
| * Given a distance in content space, convert it to view space. Note: this |
| * does not reflect translation, just scaling, so this should not be called |
| * with coordinates, but should be called for dimensions like width or |
| * height. |
| */ |
| /*package*/ int contentToViewDimension(int d) { |
| return Math.round(d * mZoomManager.getScale()); |
| } |
| |
| /** |
| * Given an x coordinate in content space, convert it to view |
| * space. |
| */ |
| /*package*/ int contentToViewX(int x) { |
| return contentToViewDimension(x); |
| } |
| |
| /** |
| * Given a y coordinate in content space, convert it to view |
| * space. Takes into account the height of the title bar. |
| */ |
| /*package*/ int contentToViewY(int y) { |
| return contentToViewDimension(y) + getTitleHeight(); |
| } |
| |
| private Rect contentToViewRect(Rect x) { |
| return new Rect(contentToViewX(x.left), contentToViewY(x.top), |
| contentToViewX(x.right), contentToViewY(x.bottom)); |
| } |
| |
| /* To invalidate a rectangle in content coordinates, we need to transform |
| the rect into view coordinates, so we can then call invalidate(...). |
| |
| Normally, we would just call contentToView[XY](...), which eventually |
| calls Math.round(coordinate * mActualScale). However, for invalidates, |
| we need to account for the slop that occurs with antialiasing. To |
| address that, we are a little more liberal in the size of the rect that |
| we invalidate. |
| |
| This liberal calculation calls floor() for the top/left, and ceil() for |
| the bottom/right coordinates. This catches the possible extra pixels of |
| antialiasing that we might have missed with just round(). |
| */ |
| |
| // Called by JNI to invalidate the View, given rectangle coordinates in |
| // content space |
| private void viewInvalidate(int l, int t, int r, int b) { |
| final float scale = mZoomManager.getScale(); |
| final int dy = getTitleHeight(); |
| invalidate((int)Math.floor(l * scale), |
| (int)Math.floor(t * scale) + dy, |
| (int)Math.ceil(r * scale), |
| (int)Math.ceil(b * scale) + dy); |
| } |
| |
| // Called by JNI to invalidate the View after a delay, given rectangle |
| // coordinates in content space |
| private void viewInvalidateDelayed(long delay, int l, int t, int r, int b) { |
| final float scale = mZoomManager.getScale(); |
| final int dy = getTitleHeight(); |
| postInvalidateDelayed(delay, |
| (int)Math.floor(l * scale), |
| (int)Math.floor(t * scale) + dy, |
| (int)Math.ceil(r * scale), |
| (int)Math.ceil(b * scale) + dy); |
| } |
| |
| private void invalidateContentRect(Rect r) { |
| viewInvalidate(r.left, r.top, r.right, r.bottom); |
| } |
| |
| // stop the scroll animation, and don't let a subsequent fling add |
| // to the existing velocity |
| private void abortAnimation() { |
| mScroller.abortAnimation(); |
| mLastVelocity = 0; |
| } |
| |
| /* call from webcoreview.draw(), so we're still executing in the UI thread |
| */ |
| private void recordNewContentSize(int w, int h, boolean updateLayout) { |
| |
| // premature data from webkit, ignore |
| if ((w | h) == 0) { |
| return; |
| } |
| |
| // don't abort a scroll animation if we didn't change anything |
| if (mContentWidth != w || mContentHeight != h) { |
| // record new dimensions |
| mContentWidth = w; |
| mContentHeight = h; |
| // If history Picture is drawn, don't update scroll. They will be |
| // updated when we get out of that mode. |
| if (!mDrawHistory) { |
| // repin our scroll, taking into account the new content size |
| updateScrollCoordinates(pinLocX(mScrollX), pinLocY(mScrollY)); |
| if (!mScroller.isFinished()) { |
| // We are in the middle of a scroll. Repin the final scroll |
| // position. |
| mScroller.setFinalX(pinLocX(mScroller.getFinalX())); |
| mScroller.setFinalY(pinLocY(mScroller.getFinalY())); |
| } |
| } |
| } |
| contentSizeChanged(updateLayout); |
| } |
| |
| // Used to avoid sending many visible rect messages. |
| private Rect mLastVisibleRectSent; |
| private Rect mLastGlobalRect; |
| |
| Rect sendOurVisibleRect() { |
| if (mZoomManager.isPreventingWebkitUpdates()) return mLastVisibleRectSent; |
| Rect rect = new Rect(); |
| calcOurContentVisibleRect(rect); |
| // Rect.equals() checks for null input. |
| if (!rect.equals(mLastVisibleRectSent)) { |
| if (!mBlockWebkitViewMessages) { |
| Point pos = new Point(rect.left, rect.top); |
| mWebViewCore.removeMessages(EventHub.SET_SCROLL_OFFSET); |
| mWebViewCore.sendMessage(EventHub.SET_SCROLL_OFFSET, |
| nativeMoveGeneration(), mSendScrollEvent ? 1 : 0, pos); |
| } |
| mLastVisibleRectSent = rect; |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| } |
| Rect globalRect = new Rect(); |
| if (getGlobalVisibleRect(globalRect) |
| && !globalRect.equals(mLastGlobalRect)) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "sendOurVisibleRect=(" + globalRect.left + "," |
| + globalRect.top + ",r=" + globalRect.right + ",b=" |
| + globalRect.bottom); |
| } |
| // TODO: the global offset is only used by windowRect() |
| // in ChromeClientAndroid ; other clients such as touch |
| // and mouse events could return view + screen relative points. |
| if (!mBlockWebkitViewMessages) { |
| mWebViewCore.sendMessage(EventHub.SET_GLOBAL_BOUNDS, globalRect); |
| } |
| mLastGlobalRect = globalRect; |
| } |
| return rect; |
| } |
| |
| // Sets r to be the visible rectangle of our webview in view coordinates |
| private void calcOurVisibleRect(Rect r) { |
| Point p = new Point(); |
| getGlobalVisibleRect(r, p); |
| r.offset(-p.x, -p.y); |
| } |
| |
| // Sets r to be our visible rectangle in content coordinates |
| private void calcOurContentVisibleRect(Rect r) { |
| calcOurVisibleRect(r); |
| r.left = viewToContentX(r.left); |
| // viewToContentY will remove the total height of the title bar. Add |
| // the visible height back in to account for the fact that if the title |
| // bar is partially visible, the part of the visible rect which is |
| // displaying our content is displaced by that amount. |
| r.top = viewToContentY(r.top + getVisibleTitleHeight()); |
| r.right = viewToContentX(r.right); |
| r.bottom = viewToContentY(r.bottom); |
| } |
| |
| // Sets r to be our visible rectangle in content coordinates. We use this |
| // method on the native side to compute the position of the fixed layers. |
| // Uses floating coordinates (necessary to correctly place elements when |
| // the scale factor is not 1) |
| private void calcOurContentVisibleRectF(RectF r) { |
| Rect ri = new Rect(0,0,0,0); |
| calcOurVisibleRect(ri); |
| r.left = viewToContentXf(ri.left); |
| // viewToContentY will remove the total height of the title bar. Add |
| // the visible height back in to account for the fact that if the title |
| // bar is partially visible, the part of the visible rect which is |
| // displaying our content is displaced by that amount. |
| r.top = viewToContentYf(ri.top + getVisibleTitleHeight()); |
| r.right = viewToContentXf(ri.right); |
| r.bottom = viewToContentYf(ri.bottom); |
| } |
| |
| static class ViewSizeData { |
| int mWidth; |
| int mHeight; |
| float mHeightWidthRatio; |
| int mActualViewHeight; |
| int mTextWrapWidth; |
| int mAnchorX; |
| int mAnchorY; |
| float mScale; |
| boolean mIgnoreHeight; |
| } |
| |
| /** |
| * Compute unzoomed width and height, and if they differ from the last |
| * values we sent, send them to webkit (to be used as new viewport) |
| * |
| * @param force ensures that the message is sent to webkit even if the width |
| * or height has not changed since the last message |
| * |
| * @return true if new values were sent |
| */ |
| boolean sendViewSizeZoom(boolean force) { |
| if (mBlockWebkitViewMessages) return false; |
| if (mZoomManager.isPreventingWebkitUpdates()) return false; |
| |
| int viewWidth = getViewWidth(); |
| int newWidth = Math.round(viewWidth * mZoomManager.getInvScale()); |
| // This height could be fixed and be different from actual visible height. |
| int viewHeight = getViewHeightWithTitle() - getTitleHeight(); |
| int newHeight = Math.round(viewHeight * mZoomManager.getInvScale()); |
| // Make the ratio more accurate than (newHeight / newWidth), since the |
| // latter both are calculated and rounded. |
| float heightWidthRatio = (float) viewHeight / viewWidth; |
| /* |
| * Because the native side may have already done a layout before the |
| * View system was able to measure us, we have to send a height of 0 to |
| * remove excess whitespace when we grow our width. This will trigger a |
| * layout and a change in content size. This content size change will |
| * mean that contentSizeChanged will either call this method directly or |
| * indirectly from onSizeChanged. |
| */ |
| if (newWidth > mLastWidthSent && mWrapContent) { |
| newHeight = 0; |
| heightWidthRatio = 0; |
| } |
| // Actual visible content height. |
| int actualViewHeight = Math.round(getViewHeight() * mZoomManager.getInvScale()); |
| // Avoid sending another message if the dimensions have not changed. |
| if (newWidth != mLastWidthSent || newHeight != mLastHeightSent || force || |
| actualViewHeight != mLastActualHeightSent) { |
| ViewSizeData data = new ViewSizeData(); |
| data.mWidth = newWidth; |
| data.mHeight = newHeight; |
| data.mHeightWidthRatio = heightWidthRatio; |
| data.mActualViewHeight = actualViewHeight; |
| data.mTextWrapWidth = Math.round(viewWidth / mZoomManager.getTextWrapScale()); |
| data.mScale = mZoomManager.getScale(); |
| data.mIgnoreHeight = mZoomManager.isFixedLengthAnimationInProgress() |
| && !mHeightCanMeasure; |
| data.mAnchorX = mZoomManager.getDocumentAnchorX(); |
| data.mAnchorY = mZoomManager.getDocumentAnchorY(); |
| mWebViewCore.sendMessage(EventHub.VIEW_SIZE_CHANGED, data); |
| mLastWidthSent = newWidth; |
| mLastHeightSent = newHeight; |
| mLastActualHeightSent = actualViewHeight; |
| mZoomManager.clearDocumentAnchor(); |
| return true; |
| } |
| return false; |
| } |
| |
| private int computeRealHorizontalScrollRange() { |
| if (mDrawHistory) { |
| return mHistoryWidth; |
| } else { |
| // to avoid rounding error caused unnecessary scrollbar, use floor |
| return (int) Math.floor(mContentWidth * mZoomManager.getScale()); |
| } |
| } |
| |
| @Override |
| protected int computeHorizontalScrollRange() { |
| int range = computeRealHorizontalScrollRange(); |
| |
| // Adjust reported range if overscrolled to compress the scroll bars |
| final int scrollX = mScrollX; |
| final int overscrollRight = computeMaxScrollX(); |
| if (scrollX < 0) { |
| range -= scrollX; |
| } else if (scrollX > overscrollRight) { |
| range += scrollX - overscrollRight; |
| } |
| |
| return range; |
| } |
| |
| @Override |
| protected int computeHorizontalScrollOffset() { |
| return Math.max(mScrollX, 0); |
| } |
| |
| private int computeRealVerticalScrollRange() { |
| if (mDrawHistory) { |
| return mHistoryHeight; |
| } else { |
| // to avoid rounding error caused unnecessary scrollbar, use floor |
| return (int) Math.floor(mContentHeight * mZoomManager.getScale()); |
| } |
| } |
| |
| @Override |
| protected int computeVerticalScrollRange() { |
| int range = computeRealVerticalScrollRange(); |
| |
| // Adjust reported range if overscrolled to compress the scroll bars |
| final int scrollY = mScrollY; |
| final int overscrollBottom = computeMaxScrollY(); |
| if (scrollY < 0) { |
| range -= scrollY; |
| } else if (scrollY > overscrollBottom) { |
| range += scrollY - overscrollBottom; |
| } |
| |
| return range; |
| } |
| |
| @Override |
| protected int computeVerticalScrollOffset() { |
| return Math.max(mScrollY - getTitleHeight(), 0); |
| } |
| |
| @Override |
| protected int computeVerticalScrollExtent() { |
| return getViewHeight(); |
| } |
| |
| /** @hide */ |
| @Override |
| protected void onDrawVerticalScrollBar(Canvas canvas, |
| Drawable scrollBar, |
| int l, int t, int r, int b) { |
| if (mScrollY < 0) { |
| t -= mScrollY; |
| } |
| scrollBar.setBounds(l, t + getVisibleTitleHeight(), r, b); |
| scrollBar.draw(canvas); |
| } |
| |
| @Override |
| protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, |
| boolean clampedY) { |
| // Special-case layer scrolling so that we do not trigger normal scroll |
| // updating. |
| if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { |
| nativeScrollLayer(mScrollingLayer, scrollX, scrollY); |
| mScrollingLayerRect.left = scrollX; |
| mScrollingLayerRect.top = scrollY; |
| invalidate(); |
| return; |
| } |
| mInOverScrollMode = false; |
| int maxX = computeMaxScrollX(); |
| int maxY = computeMaxScrollY(); |
| if (maxX == 0) { |
| // do not over scroll x if the page just fits the screen |
| scrollX = pinLocX(scrollX); |
| } else if (scrollX < 0 || scrollX > maxX) { |
| mInOverScrollMode = true; |
| } |
| if (scrollY < 0 || scrollY > maxY) { |
| mInOverScrollMode = true; |
| } |
| |
| int oldX = mScrollX; |
| int oldY = mScrollY; |
| |
| super.scrollTo(scrollX, scrollY); |
| |
| if (mOverScrollGlow != null) { |
| mOverScrollGlow.pullGlow(mScrollX, mScrollY, oldX, oldY, maxX, maxY); |
| } |
| } |
| |
| /** |
| * Get the url for the current page. This is not always the same as the url |
| * passed to WebViewClient.onPageStarted because although the load for |
| * that url has begun, the current page may not have changed. |
| * @return The url for the current page. |
| */ |
| public String getUrl() { |
| checkThread(); |
| WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); |
| return h != null ? h.getUrl() : null; |
| } |
| |
| /** |
| * Get the original url for the current page. This is not always the same |
| * as the url passed to WebViewClient.onPageStarted because although the |
| * load for that url has begun, the current page may not have changed. |
| * Also, there may have been redirects resulting in a different url to that |
| * originally requested. |
| * @return The url that was originally requested for the current page. |
| */ |
| public String getOriginalUrl() { |
| checkThread(); |
| WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); |
| return h != null ? h.getOriginalUrl() : null; |
| } |
| |
| /** |
| * Get the title for the current page. This is the title of the current page |
| * until WebViewClient.onReceivedTitle is called. |
| * @return The title for the current page. |
| */ |
| public String getTitle() { |
| checkThread(); |
| WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); |
| return h != null ? h.getTitle() : null; |
| } |
| |
| /** |
| * Get the favicon for the current page. This is the favicon of the current |
| * page until WebViewClient.onReceivedIcon is called. |
| * @return The favicon for the current page. |
| */ |
| public Bitmap getFavicon() { |
| checkThread(); |
| WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); |
| return h != null ? h.getFavicon() : null; |
| } |
| |
| /** |
| * Get the touch icon url for the apple-touch-icon <link> element, or |
| * a URL on this site's server pointing to the standard location of a |
| * touch icon. |
| * @hide |
| */ |
| public String getTouchIconUrl() { |
| WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); |
| return h != null ? h.getTouchIconUrl() : null; |
| } |
| |
| /** |
| * Get the progress for the current page. |
| * @return The progress for the current page between 0 and 100. |
| */ |
| public int getProgress() { |
| checkThread(); |
| return mCallbackProxy.getProgress(); |
| } |
| |
| /** |
| * @return the height of the HTML content. |
| */ |
| public int getContentHeight() { |
| checkThread(); |
| return mContentHeight; |
| } |
| |
| /** |
| * @return the width of the HTML content. |
| * @hide |
| */ |
| public int getContentWidth() { |
| return mContentWidth; |
| } |
| |
| /** |
| * Pause all layout, parsing, and JavaScript timers for all webviews. This |
| * is a global requests, not restricted to just this webview. This can be |
| * useful if the application has been paused. |
| */ |
| public void pauseTimers() { |
| checkThread(); |
| mWebViewCore.sendMessage(EventHub.PAUSE_TIMERS); |
| } |
| |
| /** |
| * Resume all layout, parsing, and JavaScript timers for all webviews. |
| * This will resume dispatching all timers. |
| */ |
| public void resumeTimers() { |
| checkThread(); |
| mWebViewCore.sendMessage(EventHub.RESUME_TIMERS); |
| } |
| |
| /** |
| * Call this to pause any extra processing associated with this WebView and |
| * its associated DOM, plugins, JavaScript etc. For example, if the WebView |
| * is taken offscreen, this could be called to reduce unnecessary CPU or |
| * network traffic. When the WebView is again "active", call onResume(). |
| * |
| * Note that this differs from pauseTimers(), which affects all WebViews. |
| */ |
| public void onPause() { |
| checkThread(); |
| if (!mIsPaused) { |
| mIsPaused = true; |
| mWebViewCore.sendMessage(EventHub.ON_PAUSE); |
| // We want to pause the current playing video when switching out |
| // from the current WebView/tab. |
| if (mHTML5VideoViewProxy != null) { |
| mHTML5VideoViewProxy.pauseAndDispatch(); |
| } |
| } |
| } |
| |
| /** |
| * Call this to resume a WebView after a previous call to onPause(). |
| */ |
| public void onResume() { |
| checkThread(); |
| if (mIsPaused) { |
| mIsPaused = false; |
| mWebViewCore.sendMessage(EventHub.ON_RESUME); |
| } |
| } |
| |
| /** |
| * Returns true if the view is paused, meaning onPause() was called. Calling |
| * onResume() sets the paused state back to false. |
| * @hide |
| */ |
| public boolean isPaused() { |
| return mIsPaused; |
| } |
| |
| /** |
| * Call this to inform the view that memory is low so that it can |
| * free any available memory. |
| */ |
| public void freeMemory() { |
| checkThread(); |
| mWebViewCore.sendMessage(EventHub.FREE_MEMORY); |
| } |
| |
| /** |
| * Clear the resource cache. Note that the cache is per-application, so |
| * this will clear the cache for all WebViews used. |
| * |
| * @param includeDiskFiles If false, only the RAM cache is cleared. |
| */ |
| public void clearCache(boolean includeDiskFiles) { |
| checkThread(); |
| // Note: this really needs to be a static method as it clears cache for all |
| // WebView. But we need mWebViewCore to send message to WebCore thread, so |
| // we can't make this static. |
| mWebViewCore.sendMessage(EventHub.CLEAR_CACHE, |
| includeDiskFiles ? 1 : 0, 0); |
| } |
| |
| /** |
| * Make sure that clearing the form data removes the adapter from the |
| * currently focused textfield if there is one. |
| */ |
| public void clearFormData() { |
| checkThread(); |
| if (inEditingMode()) { |
| AutoCompleteAdapter adapter = null; |
| mWebTextView.setAdapterCustom(adapter); |
| } |
| } |
| |
| /** |
| * Tell the WebView to clear its internal back/forward list. |
| */ |
| public void clearHistory() { |
| checkThread(); |
| mCallbackProxy.getBackForwardList().setClearPending(); |
| mWebViewCore.sendMessage(EventHub.CLEAR_HISTORY); |
| } |
| |
| /** |
| * Clear the SSL preferences table stored in response to proceeding with SSL |
| * certificate errors. |
| */ |
| public void clearSslPreferences() { |
| checkThread(); |
| mWebViewCore.sendMessage(EventHub.CLEAR_SSL_PREF_TABLE); |
| } |
| |
| /** |
| * Return the WebBackForwardList for this WebView. This contains the |
| * back/forward list for use in querying each item in the history stack. |
| * This is a copy of the private WebBackForwardList so it contains only a |
| * snapshot of the current state. Multiple calls to this method may return |
| * different objects. The object returned from this method will not be |
| * updated to reflect any new state. |
| */ |
| public WebBackForwardList copyBackForwardList() { |
| checkThread(); |
| return mCallbackProxy.getBackForwardList().clone(); |
| } |
| |
| /* |
| * Highlight and scroll to the next occurance of String in findAll. |
| * Wraps the page infinitely, and scrolls. Must be called after |
| * calling findAll. |
| * |
| * @param forward Direction to search. |
| */ |
| public void findNext(boolean forward) { |
| checkThread(); |
| if (0 == mNativeClass) return; // client isn't initialized |
| nativeFindNext(forward); |
| } |
| |
| /* |
| * Find all instances of find on the page and highlight them. |
| * @param find String to find. |
| * @return int The number of occurances of the String "find" |
| * that were found. |
| */ |
| public int findAll(String find) { |
| checkThread(); |
| if (0 == mNativeClass) return 0; // client isn't initialized |
| int result = find != null ? nativeFindAll(find.toLowerCase(), |
| find.toUpperCase(), find.equalsIgnoreCase(mLastFind)) : 0; |
| invalidate(); |
| mLastFind = find; |
| return result; |
| } |
| |
| /** |
| * Start an ActionMode for finding text in this WebView. Only works if this |
| * WebView is attached to the view system. |
| * @param text If non-null, will be the initial text to search for. |
| * Otherwise, the last String searched for in this WebView will |
| * be used to start. |
| * @param showIme If true, show the IME, assuming the user will begin typing. |
| * If false and text is non-null, perform a find all. |
| * @return boolean True if the find dialog is shown, false otherwise. |
| */ |
| public boolean showFindDialog(String text, boolean showIme) { |
| checkThread(); |
| FindActionModeCallback callback = new FindActionModeCallback(mContext); |
| if (getParent() == null || startActionMode(callback) == null) { |
| // Could not start the action mode, so end Find on page |
| return false; |
| } |
| mFindCallback = callback; |
| setFindIsUp(true); |
| mFindCallback.setWebView(this); |
| if (showIme) { |
| mFindCallback.showSoftInput(); |
| } else if (text != null) { |
| mFindCallback.setText(text); |
| mFindCallback.findAll(); |
| return true; |
| } |
| if (text == null) { |
| text = mLastFind; |
| } |
| if (text != null) { |
| mFindCallback.setText(text); |
| } |
| return true; |
| } |
| |
| /** |
| * Keep track of the find callback so that we can remove its titlebar if |
| * necessary. |
| */ |
| private FindActionModeCallback mFindCallback; |
| |
| /** |
| * Toggle whether the find dialog is showing, for both native and Java. |
| */ |
| private void setFindIsUp(boolean isUp) { |
| mFindIsUp = isUp; |
| if (0 == mNativeClass) return; // client isn't initialized |
| nativeSetFindIsUp(isUp); |
| } |
| |
| /** |
| * Return the index of the currently highlighted match. |
| */ |
| int findIndex() { |
| if (0 == mNativeClass) return -1; |
| return nativeFindIndex(); |
| } |
| |
| // Used to know whether the find dialog is open. Affects whether |
| // or not we draw the highlights for matches. |
| private boolean mFindIsUp; |
| |
| // Keep track of the last string sent, so we can search again when find is |
| // reopened. |
| private String mLastFind; |
| |
| /** |
| * Return the first substring consisting of the address of a physical |
| * location. Currently, only addresses in the United States are detected, |
| * and consist of: |
| * - a house number |
| * - a street name |
| * - a street type (Road, Circle, etc), either spelled out or abbreviated |
| * - a city name |
| * - a state or territory, either spelled out or two-letter abbr. |
| * - an optional 5 digit or 9 digit zip code. |
| * |
| * All names must be correctly capitalized, and the zip code, if present, |
| * must be valid for the state. The street type must be a standard USPS |
| * spelling or abbreviation. The state or territory must also be spelled |
| * or abbreviated using USPS standards. The house number may not exceed |
| * five digits. |
| * @param addr The string to search for addresses. |
| * |
| * @return the address, or if no address is found, return null. |
| */ |
| public static String findAddress(String addr) { |
| checkThread(); |
| return findAddress(addr, false); |
| } |
| |
| /** |
| * @hide |
| * Return the first substring consisting of the address of a physical |
| * location. Currently, only addresses in the United States are detected, |
| * and consist of: |
| * - a house number |
| * - a street name |
| * - a street type (Road, Circle, etc), either spelled out or abbreviated |
| * - a city name |
| * - a state or territory, either spelled out or two-letter abbr. |
| * - an optional 5 digit or 9 digit zip code. |
| * |
| * Names are optionally capitalized, and the zip code, if present, |
| * must be valid for the state. The street type must be a standard USPS |
| * spelling or abbreviation. The state or territory must also be spelled |
| * or abbreviated using USPS standards. The house number may not exceed |
| * five digits. |
| * @param addr The string to search for addresses. |
| * @param caseInsensitive addr Set to true to make search ignore case. |
| * |
| * @return the address, or if no address is found, return null. |
| */ |
| public static String findAddress(String addr, boolean caseInsensitive) { |
| return WebViewCore.nativeFindAddress(addr, caseInsensitive); |
| } |
| |
| /* |
| * Clear the highlighting surrounding text matches created by findAll. |
| */ |
| public void clearMatches() { |
| checkThread(); |
| if (mNativeClass == 0) |
| return; |
| nativeSetFindIsEmpty(); |
| invalidate(); |
| } |
| |
| /** |
| * Called when the find ActionMode ends. |
| */ |
| void notifyFindDialogDismissed() { |
| mFindCallback = null; |
| if (mWebViewCore == null) { |
| return; |
| } |
| clearMatches(); |
| setFindIsUp(false); |
| // Now that the dialog has been removed, ensure that we scroll to a |
| // location that is not beyond the end of the page. |
| pinScrollTo(mScrollX, mScrollY, false, 0); |
| invalidate(); |
| } |
| |
| /** |
| * Query the document to see if it contains any image references. The |
| * message object will be dispatched with arg1 being set to 1 if images |
| * were found and 0 if the document does not reference any images. |
| * @param response The message that will be dispatched with the result. |
| */ |
| public void documentHasImages(Message response) { |
| checkThread(); |
| if (response == null) { |
| return; |
| } |
| mWebViewCore.sendMessage(EventHub.DOC_HAS_IMAGES, response); |
| } |
| |
| /** |
| * Request the scroller to abort any ongoing animation |
| * |
| * @hide |
| */ |
| public void stopScroll() { |
| mScroller.forceFinished(true); |
| mLastVelocity = 0; |
| } |
| |
| @Override |
| public void computeScroll() { |
| if (mScroller.computeScrollOffset()) { |
| int oldX = mScrollX; |
| int oldY = mScrollY; |
| int x = mScroller.getCurrX(); |
| int y = mScroller.getCurrY(); |
| invalidate(); // So we draw again |
| |
| if (!mScroller.isFinished()) { |
| int rangeX = computeMaxScrollX(); |
| int rangeY = computeMaxScrollY(); |
| int overflingDistance = mOverflingDistance; |
| |
| // Use the layer's scroll data if needed. |
| if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { |
| oldX = mScrollingLayerRect.left; |
| oldY = mScrollingLayerRect.top; |
| rangeX = mScrollingLayerRect.right; |
| rangeY = mScrollingLayerRect.bottom; |
| // No overscrolling for layers. |
| overflingDistance = 0; |
| } |
| |
| overScrollBy(x - oldX, y - oldY, oldX, oldY, |
| rangeX, rangeY, |
| overflingDistance, overflingDistance, false); |
| |
| if (mOverScrollGlow != null) { |
| mOverScrollGlow.absorbGlow(x, y, oldX, oldY, rangeX, rangeY); |
| } |
| } else { |
| if (mTouchMode != TOUCH_DRAG_LAYER_MODE) { |
| mScrollX = x; |
| mScrollY = y; |
| } else { |
| // Update the layer position instead of WebView. |
| nativeScrollLayer(mScrollingLayer, x, y); |
| mScrollingLayerRect.left = x; |
| mScrollingLayerRect.top = y; |
| } |
| abortAnimation(); |
| mPrivateHandler.removeMessages(RESUME_WEBCORE_PRIORITY); |
| if (!mBlockWebkitViewMessages) { |
| WebViewCore.resumePriority(); |
| if (!mSelectingText) { |
| WebViewCore.resumeUpdatePicture(mWebViewCore); |
| } |
| } |
| if (oldX != mScrollX || oldY != mScrollY) { |
| sendOurVisibleRect(); |
| } |
| } |
| } else { |
| super.computeScroll(); |
| } |
| } |
| |
| private static int computeDuration(int dx, int dy) { |
| int distance = Math.max(Math.abs(dx), Math.abs(dy)); |
| int duration = distance * 1000 / STD_SPEED; |
| return Math.min(duration, MAX_DURATION); |
| } |
| |
| // helper to pin the scrollBy parameters (already in view coordinates) |
| // returns true if the scroll was changed |
| private boolean pinScrollBy(int dx, int dy, boolean animate, int animationDuration) { |
| return pinScrollTo(mScrollX + dx, mScrollY + dy, animate, animationDuration); |
| } |
| // helper to pin the scrollTo parameters (already in view coordinates) |
| // returns true if the scroll was changed |
| private boolean pinScrollTo(int x, int y, boolean animate, int animationDuration) { |
| x = pinLocX(x); |
| y = pinLocY(y); |
| int dx = x - mScrollX; |
| int dy = y - mScrollY; |
| |
| if ((dx | dy) == 0) { |
| return false; |
| } |
| abortAnimation(); |
| if (animate) { |
| // Log.d(LOGTAG, "startScroll: " + dx + " " + dy); |
| mScroller.startScroll(mScrollX, mScrollY, dx, dy, |
| animationDuration > 0 ? animationDuration : computeDuration(dx, dy)); |
| awakenScrollBars(mScroller.getDuration()); |
| invalidate(); |
| } else { |
| scrollTo(x, y); |
| } |
| return true; |
| } |
| |
| // Scale from content to view coordinates, and pin. |
| // Also called by jni webview.cpp |
| private boolean setContentScrollBy(int cx, int cy, boolean animate) { |
| if (mDrawHistory) { |
| // disallow WebView to change the scroll position as History Picture |
| // is used in the view system. |
| // TODO: as we switchOutDrawHistory when trackball or navigation |
| // keys are hit, this should be safe. Right? |
| return false; |
| } |
| cx = contentToViewDimension(cx); |
| cy = contentToViewDimension(cy); |
| if (mHeightCanMeasure) { |
| // move our visible rect according to scroll request |
| if (cy != 0) { |
| Rect tempRect = new Rect(); |
| calcOurVisibleRect(tempRect); |
| tempRect.offset(cx, cy); |
| requestRectangleOnScreen(tempRect); |
| } |
| // FIXME: We scroll horizontally no matter what because currently |
| // ScrollView and ListView will not scroll horizontally. |
| // FIXME: Why do we only scroll horizontally if there is no |
| // vertical scroll? |
| // Log.d(LOGTAG, "setContentScrollBy cy=" + cy); |
| return cy == 0 && cx != 0 && pinScrollBy(cx, 0, animate, 0); |
| } else { |
| return pinScrollBy(cx, cy, animate, 0); |
| } |
| } |
| |
| /** |
| * Called by CallbackProxy when the page starts loading. |
| * @param url The URL of the page which has started loading. |
| */ |
| /* package */ void onPageStarted(String url) { |
| // every time we start a new page, we want to reset the |
| // WebView certificate: if the new site is secure, we |
| // will reload it and get a new certificate set; |
| // if the new site is not secure, the certificate must be |
| // null, and that will be the case |
| setCertificate(null); |
| |
| // reset the flag since we set to true in if need after |
| // loading is see onPageFinished(Url) |
| mAccessibilityScriptInjected = false; |
| } |
| |
| /** |
| * Called by CallbackProxy when the page finishes loading. |
| * @param url The URL of the page which has finished loading. |
| */ |
| /* package */ void onPageFinished(String url) { |
| if (mPageThatNeedsToSlideTitleBarOffScreen != null) { |
| // If the user is now on a different page, or has scrolled the page |
| // past the point where the title bar is offscreen, ignore the |
| // scroll request. |
| if (mPageThatNeedsToSlideTitleBarOffScreen.equals(url) |
| && mScrollX == 0 && mScrollY == 0) { |
| pinScrollTo(0, mYDistanceToSlideTitleOffScreen, true, |
| SLIDE_TITLE_DURATION); |
| } |
| mPageThatNeedsToSlideTitleBarOffScreen = null; |
| } |
| mZoomManager.onPageFinished(url); |
| injectAccessibilityForUrl(url); |
| } |
| |
| /** |
| * This method injects accessibility in the loaded document if accessibility |
| * is enabled. If JavaScript is enabled we try to inject a URL specific script. |
| * If no URL specific script is found or JavaScript is disabled we fallback to |
| * the default {@link AccessibilityInjector} implementation. |
| * </p> |
| * If the URL has the "axs" paramter set to 1 it has already done the |
| * script injection so we do nothing. If the parameter is set to 0 |
| * the URL opts out accessibility script injection so we fall back to |
| * the default {@link AccessibilityInjector}. |
| * </p> |
| * Note: If the user has not opted-in the accessibility script injection no scripts |
| * are injected rather the default {@link AccessibilityInjector} implementation |
| * is used. |
| * |
| * @param url The URL loaded by this {@link WebView}. |
| */ |
| private void injectAccessibilityForUrl(String url) { |
| if (mWebViewCore == null) { |
| return; |
| } |
| AccessibilityManager accessibilityManager = AccessibilityManager.getInstance(mContext); |
| |
| if (!accessibilityManager.isEnabled()) { |
| // it is possible that accessibility was turned off between reloads |
| ensureAccessibilityScriptInjectorInstance(false); |
| return; |
| } |
| |
| if (!getSettings().getJavaScriptEnabled()) { |
| // no JS so we fallback to the basic buil-in support |
| ensureAccessibilityScriptInjectorInstance(true); |
| return; |
| } |
| |
| // check the URL "axs" parameter to choose appropriate action |
| int axsParameterValue = getAxsUrlParameterValue(url); |
| if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_UNDEFINED) { |
| boolean onDeviceScriptInjectionEnabled = (Settings.Secure.getInt(mContext |
| .getContentResolver(), Settings.Secure.ACCESSIBILITY_SCRIPT_INJECTION, 0) == 1); |
| if (onDeviceScriptInjectionEnabled) { |
| ensureAccessibilityScriptInjectorInstance(false); |
| // neither script injected nor script injection opted out => we inject |
| loadUrl(ACCESSIBILITY_SCRIPT_CHOOSER_JAVASCRIPT); |
| // TODO: Set this flag after successfull script injection. Maybe upon injection |
| // the chooser should update the meta tag and we check it to declare success |
| mAccessibilityScriptInjected = true; |
| } else { |
| // injection disabled so we fallback to the basic built-in support |
| ensureAccessibilityScriptInjectorInstance(true); |
| } |
| } else if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_OPTED_OUT) { |
| // injection opted out so we fallback to the basic buil-in support |
| ensureAccessibilityScriptInjectorInstance(true); |
| } else if (axsParameterValue == ACCESSIBILITY_SCRIPT_INJECTION_PROVIDED) { |
| ensureAccessibilityScriptInjectorInstance(false); |
| // the URL provides accessibility but we still need to add our generic script |
| loadUrl(ACCESSIBILITY_SCRIPT_CHOOSER_JAVASCRIPT); |
| } else { |
| Log.e(LOGTAG, "Unknown URL value for the \"axs\" URL parameter: " + axsParameterValue); |
| } |
| } |
| |
| /** |
| * Ensures the instance of the {@link AccessibilityInjector} to be present ot not. |
| * |
| * @param present True to ensure an insance, false to ensure no instance. |
| */ |
| private void ensureAccessibilityScriptInjectorInstance(boolean present) { |
| if (present) { |
| if (mAccessibilityInjector == null) { |
| mAccessibilityInjector = new AccessibilityInjector(this); |
| } |
| } else { |
| mAccessibilityInjector = null; |
| } |
| } |
| |
| /** |
| * Gets the "axs" URL parameter value. |
| * |
| * @param url A url to fetch the paramter from. |
| * @return The parameter value if such, -1 otherwise. |
| */ |
| private int getAxsUrlParameterValue(String url) { |
| if (mMatchAxsUrlParameterPattern == null) { |
| mMatchAxsUrlParameterPattern = Pattern.compile(PATTERN_MATCH_AXS_URL_PARAMETER); |
| } |
| Matcher matcher = mMatchAxsUrlParameterPattern.matcher(url); |
| if (matcher.find()) { |
| String keyValuePair = url.substring(matcher.start(), matcher.end()); |
| return Integer.parseInt(keyValuePair.split("=")[1]); |
| } |
| return -1; |
| } |
| |
| /** |
| * The URL of a page that sent a message to scroll the title bar off screen. |
| * |
| * Many mobile sites tell the page to scroll to (0,1) in order to scroll the |
| * title bar off the screen. Sometimes, the scroll position is set before |
| * the page finishes loading. Rather than scrolling while the page is still |
| * loading, keep track of the URL and new scroll position so we can perform |
| * the scroll once the page finishes loading. |
| */ |
| private String mPageThatNeedsToSlideTitleBarOffScreen; |
| |
| /** |
| * The destination Y scroll position to be used when the page finishes |
| * loading. See mPageThatNeedsToSlideTitleBarOffScreen. |
| */ |
| private int mYDistanceToSlideTitleOffScreen; |
| |
| // scale from content to view coordinates, and pin |
| // return true if pin caused the final x/y different than the request cx/cy, |
| // and a future scroll may reach the request cx/cy after our size has |
| // changed |
| // return false if the view scroll to the exact position as it is requested, |
| // where negative numbers are taken to mean 0 |
| private boolean setContentScrollTo(int cx, int cy) { |
| if (mDrawHistory) { |
| // disallow WebView to change the scroll position as History Picture |
| // is used in the view system. |
| // One known case where this is called is that WebCore tries to |
| // restore the scroll position. As history Picture already uses the |
| // saved scroll position, it is ok to skip this. |
| return false; |
| } |
| int vx; |
| int vy; |
| if ((cx | cy) == 0) { |
| // If the page is being scrolled to (0,0), do not add in the title |
| // bar's height, and simply scroll to (0,0). (The only other work |
| // in contentToView_ is to multiply, so this would not change 0.) |
| vx = 0; |
| vy = 0; |
| } else { |
| vx = contentToViewX(cx); |
| vy = contentToViewY(cy); |
| } |
| // Log.d(LOGTAG, "content scrollTo [" + cx + " " + cy + "] view=[" + |
| // vx + " " + vy + "]"); |
| // Some mobile sites attempt to scroll the title bar off the page by |
| // scrolling to (0,1). If we are at the top left corner of the |
| // page, assume this is an attempt to scroll off the title bar, and |
| // animate the title bar off screen slowly enough that the user can see |
| // it. |
| if (cx == 0 && cy == 1 && mScrollX == 0 && mScrollY == 0 |
| && mTitleBar != null) { |
| // FIXME: 100 should be defined somewhere as our max progress. |
| if (getProgress() < 100) { |
| // Wait to scroll the title bar off screen until the page has |
| // finished loading. Keep track of the URL and the destination |
| // Y position |
| mPageThatNeedsToSlideTitleBarOffScreen = getUrl(); |
| mYDistanceToSlideTitleOffScreen = vy; |
| } else { |
| pinScrollTo(vx, vy, true, SLIDE_TITLE_DURATION); |
| } |
| // Since we are animating, we have not yet reached the desired |
| // scroll position. Do not return true to request another attempt |
| return false; |
| } |
| pinScrollTo(vx, vy, false, 0); |
| // If the request was to scroll to a negative coordinate, treat it as if |
| // it was a request to scroll to 0 |
| if ((mScrollX != vx && cx >= 0) || (mScrollY != vy && cy >= 0)) { |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| // scale from content to view coordinates, and pin |
| private void spawnContentScrollTo(int cx, int cy) { |
| if (mDrawHistory) { |
| // disallow WebView to change the scroll position as History Picture |
| // is used in the view system. |
| return; |
| } |
| int vx = contentToViewX(cx); |
| int vy = contentToViewY(cy); |
| pinScrollTo(vx, vy, true, 0); |
| } |
| |
| /** |
| * These are from webkit, and are in content coordinate system (unzoomed) |
| */ |
| private void contentSizeChanged(boolean updateLayout) { |
| // suppress 0,0 since we usually see real dimensions soon after |
| // this avoids drawing the prev content in a funny place. If we find a |
| // way to consolidate these notifications, this check may become |
| // obsolete |
| if ((mContentWidth | mContentHeight) == 0) { |
| return; |
| } |
| |
| if (mHeightCanMeasure) { |
| if (getMeasuredHeight() != contentToViewDimension(mContentHeight) |
| || updateLayout) { |
| requestLayout(); |
| } |
| } else if (mWidthCanMeasure) { |
| if (getMeasuredWidth() != contentToViewDimension(mContentWidth) |
| || updateLayout) { |
| requestLayout(); |
| } |
| } else { |
| // If we don't request a layout, try to send our view size to the |
| // native side to ensure that WebCore has the correct dimensions. |
| sendViewSizeZoom(false); |
| } |
| } |
| |
| /** |
| * Set the WebViewClient that will receive various notifications and |
| * requests. This will replace the current handler. |
| * @param client An implementation of WebViewClient. |
| */ |
| public void setWebViewClient(WebViewClient client) { |
| checkThread(); |
| mCallbackProxy.setWebViewClient(client); |
| } |
| |
| /** |
| * Gets the WebViewClient |
| * @return the current WebViewClient instance. |
| * |
| *@hide pending API council approval. |
| */ |
| public WebViewClient getWebViewClient() { |
| return mCallbackProxy.getWebViewClient(); |
| } |
| |
| /** |
| * Register the interface to be used when content can not be handled by |
| * the rendering engine, and should be downloaded instead. This will replace |
| * the current handler. |
| * @param listener An implementation of DownloadListener. |
| */ |
| public void setDownloadListener(DownloadListener listener) { |
| checkThread(); |
| mCallbackProxy.setDownloadListener(listener); |
| } |
| |
| /** |
| * Set the chrome handler. This is an implementation of WebChromeClient for |
| * use in handling JavaScript dialogs, favicons, titles, and the progress. |
| * This will replace the current handler. |
| * @param client An implementation of WebChromeClient. |
| */ |
| public void setWebChromeClient(WebChromeClient client) { |
| checkThread(); |
| mCallbackProxy.setWebChromeClient(client); |
| } |
| |
| /** |
| * Gets the chrome handler. |
| * @return the current WebChromeClient instance. |
| * |
| * @hide API council approval. |
| */ |
| public WebChromeClient getWebChromeClient() { |
| return mCallbackProxy.getWebChromeClient(); |
| } |
| |
| /** |
| * Set the back/forward list client. This is an implementation of |
| * WebBackForwardListClient for handling new items and changes in the |
| * history index. |
| * @param client An implementation of WebBackForwardListClient. |
| * {@hide} |
| */ |
| public void setWebBackForwardListClient(WebBackForwardListClient client) { |
| mCallbackProxy.setWebBackForwardListClient(client); |
| } |
| |
| /** |
| * Gets the WebBackForwardListClient. |
| * {@hide} |
| */ |
| public WebBackForwardListClient getWebBackForwardListClient() { |
| return mCallbackProxy.getWebBackForwardListClient(); |
| } |
| |
| /** |
| * Set the Picture listener. This is an interface used to receive |
| * notifications of a new Picture. |
| * @param listener An implementation of WebView.PictureListener. |
| * @deprecated This method is now obsolete. |
| */ |
| @Deprecated |
| public void setPictureListener(PictureListener listener) { |
| checkThread(); |
| mPictureListener = listener; |
| } |
| |
| /** |
| * {@hide} |
| */ |
| /* FIXME: Debug only! Remove for SDK! */ |
| public void externalRepresentation(Message callback) { |
| mWebViewCore.sendMessage(EventHub.REQUEST_EXT_REPRESENTATION, callback); |
| } |
| |
| /** |
| * {@hide} |
| */ |
| /* FIXME: Debug only! Remove for SDK! */ |
| public void documentAsText(Message callback) { |
| mWebViewCore.sendMessage(EventHub.REQUEST_DOC_AS_TEXT, callback); |
| } |
| |
| /** |
| * Use this function to bind an object to JavaScript so that the |
| * methods can be accessed from JavaScript. |
| * <p><strong>IMPORTANT:</strong> |
| * <ul> |
| * <li> Using addJavascriptInterface() allows JavaScript to control your |
| * application. This can be a very useful feature or a dangerous security |
| * issue. When the HTML in the WebView is untrustworthy (for example, part |
| * or all of the HTML is provided by some person or process), then an |
| * attacker could inject HTML that will execute your code and possibly any |
| * code of the attacker's choosing.<br> |
| * Do not use addJavascriptInterface() unless all of the HTML in this |
| * WebView was written by you.</li> |
| * <li> The Java object that is bound runs in another thread and not in |
| * the thread that it was constructed in.</li> |
| * </ul></p> |
| * @param obj The class instance to bind to JavaScript, null instances are |
| * ignored. |
| * @param interfaceName The name to used to expose the instance in |
| * JavaScript. |
| */ |
| public void addJavascriptInterface(Object obj, String interfaceName) { |
| checkThread(); |
| if (obj == null) { |
| return; |
| } |
| WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData(); |
| arg.mObject = obj; |
| arg.mInterfaceName = interfaceName; |
| mWebViewCore.sendMessage(EventHub.ADD_JS_INTERFACE, arg); |
| } |
| |
| /** |
| * Removes a previously added JavaScript interface with the given name. |
| * @param interfaceName The name of the interface to remove. |
| */ |
| public void removeJavascriptInterface(String interfaceName) { |
| checkThread(); |
| if (mWebViewCore != null) { |
| WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData(); |
| arg.mInterfaceName = interfaceName; |
| mWebViewCore.sendMessage(EventHub.REMOVE_JS_INTERFACE, arg); |
| } |
| } |
| |
| /** |
| * Return the WebSettings object used to control the settings for this |
| * WebView. |
| * @return A WebSettings object that can be used to control this WebView's |
| * settings. |
| */ |
| public WebSettings getSettings() { |
| checkThread(); |
| return (mWebViewCore != null) ? mWebViewCore.getSettings() : null; |
| } |
| |
| /** |
| * Return the list of currently loaded plugins. |
| * @return The list of currently loaded plugins. |
| * |
| * @hide |
| * @deprecated This was used for Gears, which has been deprecated. |
| */ |
| @Deprecated |
| public static synchronized PluginList getPluginList() { |
| checkThread(); |
| return new PluginList(); |
| } |
| |
| /** |
| * @hide |
| * @deprecated This was used for Gears, which has been deprecated. |
| */ |
| @Deprecated |
| public void refreshPlugins(boolean reloadOpenPages) { |
| checkThread(); |
| } |
| |
| //------------------------------------------------------------------------- |
| // Override View methods |
| //------------------------------------------------------------------------- |
| |
| @Override |
| protected void finalize() throws Throwable { |
| try { |
| destroyImpl(); |
| } finally { |
| super.finalize(); |
| } |
| } |
| |
| @Override |
| protected boolean drawChild(Canvas canvas, View child, long drawingTime) { |
| if (child == mTitleBar) { |
| // When drawing the title bar, move it horizontally to always show |
| // at the top of the WebView. |
| mTitleBar.offsetLeftAndRight(mScrollX - mTitleBar.getLeft()); |
| int newTop = 0; |
| if (mTitleGravity == Gravity.NO_GRAVITY) { |
| newTop = Math.min(0, mScrollY); |
| } else if (mTitleGravity == Gravity.TOP) { |
| newTop = mScrollY; |
| } |
| mTitleBar.setBottom(newTop + mTitleBar.getHeight()); |
| mTitleBar.setTop(newTop); |
| } |
| return super.drawChild(canvas, child, drawingTime); |
| } |
| |
| private void drawContent(Canvas canvas) { |
| // Update the buttons in the picture, so when we draw the picture |
| // to the screen, they are in the correct state. |
| // Tell the native side if user is a) touching the screen, |
| // b) pressing the trackball down, or c) pressing the enter key |
| // If the cursor is on a button, we need to draw it in the pressed |
| // state. |
| // If mNativeClass is 0, we should not reach here, so we do not |
| // need to check it again. |
| nativeRecordButtons(hasFocus() && hasWindowFocus(), |
| mTouchMode == TOUCH_SHORTPRESS_START_MODE |
| || mTrackballDown || mGotCenterDown, false); |
| drawCoreAndCursorRing(canvas, mBackgroundColor, mDrawCursorRing); |
| } |
| |
| /** |
| * Draw the background when beyond bounds |
| * @param canvas Canvas to draw into |
| */ |
| private void drawOverScrollBackground(Canvas canvas) { |
| if (mOverScrollBackground == null) { |
| mOverScrollBackground = new Paint(); |
| Bitmap bm = BitmapFactory.decodeResource( |
| mContext.getResources(), |
| com.android.internal.R.drawable.status_bar_background); |
| mOverScrollBackground.setShader(new BitmapShader(bm, |
| Shader.TileMode.REPEAT, Shader.TileMode.REPEAT)); |
| mOverScrollBorder = new Paint(); |
| mOverScrollBorder.setStyle(Paint.Style.STROKE); |
| mOverScrollBorder.setStrokeWidth(0); |
| mOverScrollBorder.setColor(0xffbbbbbb); |
| } |
| |
| int top = 0; |
| int right = computeRealHorizontalScrollRange(); |
| int bottom = top + computeRealVerticalScrollRange(); |
| // first draw the background and anchor to the top of the view |
| canvas.save(); |
| canvas.translate(mScrollX, mScrollY); |
| canvas.clipRect(-mScrollX, top - mScrollY, right - mScrollX, bottom |
| - mScrollY, Region.Op.DIFFERENCE); |
| canvas.drawPaint(mOverScrollBackground); |
| canvas.restore(); |
| // then draw the border |
| canvas.drawRect(-1, top - 1, right, bottom, mOverScrollBorder); |
| // next clip the region for the content |
| canvas.clipRect(0, top, right, bottom); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| // if mNativeClass is 0, the WebView has been destroyed. Do nothing. |
| if (mNativeClass == 0) { |
| return; |
| } |
| |
| // if both mContentWidth and mContentHeight are 0, it means there is no |
| // valid Picture passed to WebView yet. This can happen when WebView |
| // just starts. Draw the background and return. |
| if ((mContentWidth | mContentHeight) == 0 && mHistoryPicture == null) { |
| canvas.drawColor(mBackgroundColor); |
| return; |
| } |
| |
| if (canvas.isHardwareAccelerated()) { |
| mZoomManager.setHardwareAccelerated(); |
| } |
| |
| int saveCount = canvas.save(); |
| if (mInOverScrollMode && !getSettings() |
| .getUseWebViewBackgroundForOverscrollBackground()) { |
| drawOverScrollBackground(canvas); |
| } |
| if (mTitleBar != null) { |
| canvas.translate(0, getTitleHeight()); |
| } |
| drawContent(canvas); |
| canvas.restoreToCount(saveCount); |
| |
| if (AUTO_REDRAW_HACK && mAutoRedraw) { |
| invalidate(); |
| } |
| if (inEditingMode()) { |
| mWebTextView.onDrawSubstitute(); |
| } |
| mWebViewCore.signalRepaintDone(); |
| |
| if (mOverScrollGlow != null && mOverScrollGlow.drawEdgeGlows(canvas)) { |
| invalidate(); |
| } |
| |
| // paint the highlight in the end |
| if (!mTouchHighlightRegion.isEmpty()) { |
| if (mTouchHightlightPaint == null) { |
| mTouchHightlightPaint = new Paint(); |
| mTouchHightlightPaint.setColor(mHightlightColor); |
| mTouchHightlightPaint.setAntiAlias(true); |
| mTouchHightlightPaint.setPathEffect(new CornerPathEffect( |
| TOUCH_HIGHLIGHT_ARC)); |
| } |
| canvas.drawPath(mTouchHighlightRegion.getBoundaryPath(), |
| mTouchHightlightPaint); |
| } |
| if (DEBUG_TOUCH_HIGHLIGHT) { |
| if (getSettings().getNavDump()) { |
| if ((mTouchHighlightX | mTouchHighlightY) != 0) { |
| if (mTouchCrossHairColor == null) { |
| mTouchCrossHairColor = new Paint(); |
| mTouchCrossHairColor.setColor(Color.RED); |
| } |
| canvas.drawLine(mTouchHighlightX - mNavSlop, |
| mTouchHighlightY - mNavSlop, mTouchHighlightX |
| + mNavSlop + 1, mTouchHighlightY + mNavSlop |
| + 1, mTouchCrossHairColor); |
| canvas.drawLine(mTouchHighlightX + mNavSlop + 1, |
| mTouchHighlightY - mNavSlop, mTouchHighlightX |
| - mNavSlop, |
| mTouchHighlightY + mNavSlop + 1, |
| mTouchCrossHairColor); |
| } |
| } |
| } |
| } |
| |
| private void removeTouchHighlight(boolean removePendingMessage) { |
| if (removePendingMessage) { |
| mWebViewCore.removeMessages(EventHub.GET_TOUCH_HIGHLIGHT_RECTS); |
| } |
| mWebViewCore.sendMessage(EventHub.REMOVE_TOUCH_HIGHLIGHT_RECTS); |
| } |
| |
| @Override |
| public void setLayoutParams(ViewGroup.LayoutParams params) { |
| if (params.height == LayoutParams.WRAP_CONTENT) { |
| mWrapContent = true; |
| } |
| super.setLayoutParams(params); |
| } |
| |
| @Override |
| public boolean performLongClick() { |
| // performLongClick() is the result of a delayed message. If we switch |
| // to windows overview, the WebView will be temporarily removed from the |
| // view system. In that case, do nothing. |
| if (getParent() == null) return false; |
| |
| // A multi-finger gesture can look like a long press; make sure we don't take |
| // long press actions if we're scaling. |
| final ScaleGestureDetector detector = mZoomManager.getMultiTouchGestureDetector(); |
| if (detector != null && detector.isInProgress()) { |
| return false; |
| } |
| |
| if (mNativeClass != 0 && nativeCursorIsTextInput()) { |
| // Send the click so that the textfield is in focus |
| centerKeyPressOnTextField(); |
| rebuildWebTextView(); |
| } else { |
| clearTextEntry(); |
| } |
| if (inEditingMode()) { |
| // Since we just called rebuildWebTextView, the layout is not set |
| // properly. Update it so it can correctly find the word to select. |
| mWebTextView.ensureLayout(); |
| // Provide a touch down event to WebTextView, which will allow it |
| // to store the location to use in performLongClick. |
| AbsoluteLayout.LayoutParams params |
| = (AbsoluteLayout.LayoutParams) mWebTextView.getLayoutParams(); |
| MotionEvent fake = MotionEvent.obtain(mLastTouchTime, |
| mLastTouchTime, MotionEvent.ACTION_DOWN, |
| mLastTouchX - params.x + mScrollX, |
| mLastTouchY - params.y + mScrollY, 0); |
| mWebTextView.dispatchTouchEvent(fake); |
| return mWebTextView.performLongClick(); |
| } |
| if (mSelectingText) return false; // long click does nothing on selection |
| /* if long click brings up a context menu, the super function |
| * returns true and we're done. Otherwise, nothing happened when |
| * the user clicked. */ |
| if (super.performLongClick()) { |
| return true; |
| } |
| /* In the case where the application hasn't already handled the long |
| * click action, look for a word under the click. If one is found, |
| * animate the text selection into view. |
| * FIXME: no animation code yet */ |
| return selectText(); |
| } |
| |
| /** |
| * Select the word at the last click point. |
| * |
| * @hide pending API council approval |
| */ |
| public boolean selectText() { |
| int x = viewToContentX(mLastTouchX + mScrollX); |
| int y = viewToContentY(mLastTouchY + mScrollY); |
| return selectText(x, y); |
| } |
| |
| /** |
| * Select the word at the indicated content coordinates. |
| */ |
| boolean selectText(int x, int y) { |
| if (!setUpSelect(true, x, y)) { |
| return false; |
| } |
| nativeSetExtendSelection(); |
| mDrawSelectionPointer = false; |
| mSelectionStarted = true; |
| mTouchMode = TOUCH_DRAG_MODE; |
| return true; |
| } |
| |
| private int mOrientation = Configuration.ORIENTATION_UNDEFINED; |
| |
| @Override |
| protected void onConfigurationChanged(Configuration newConfig) { |
| if (mSelectingText && mOrientation != newConfig.orientation) { |
| selectionDone(); |
| } |
| mOrientation = newConfig.orientation; |
| } |
| |
| /** |
| * Keep track of the Callback so we can end its ActionMode or remove its |
| * titlebar. |
| */ |
| private SelectActionModeCallback mSelectCallback; |
| |
| // These values are possible options for didUpdateWebTextViewDimensions. |
| private static final int FULLY_ON_SCREEN = 0; |
| private static final int INTERSECTS_SCREEN = 1; |
| private static final int ANYWHERE = 2; |
| |
| /** |
| * Check to see if the focused textfield/textarea is still on screen. If it |
| * is, update the the dimensions and location of WebTextView. Otherwise, |
| * remove the WebTextView. Should be called when the zoom level changes. |
| * @param intersection How to determine whether the textfield/textarea is |
| * still on screen. |
| * @return boolean True if the textfield/textarea is still on screen and the |
| * dimensions/location of WebTextView have been updated. |
| */ |
| private boolean didUpdateWebTextViewDimensions(int intersection) { |
| Rect contentBounds = nativeFocusCandidateNodeBounds(); |
| Rect vBox = contentToViewRect(contentBounds); |
| Rect visibleRect = new Rect(); |
| calcOurVisibleRect(visibleRect); |
| // If the textfield is on screen, place the WebTextView in |
| // its new place, accounting for our new scroll/zoom values, |
| // and adjust its textsize. |
| boolean onScreen; |
| switch (intersection) { |
| case FULLY_ON_SCREEN: |
| onScreen = visibleRect.contains(vBox); |
| break; |
| case INTERSECTS_SCREEN: |
| onScreen = Rect.intersects(visibleRect, vBox); |
| break; |
| case ANYWHERE: |
| onScreen = true; |
| break; |
| default: |
| throw new AssertionError( |
| "invalid parameter passed to didUpdateWebTextViewDimensions"); |
| } |
| if (onScreen) { |
| mWebTextView.setRect(vBox.left, vBox.top, vBox.width(), |
| vBox.height()); |
| mWebTextView.updateTextSize(); |
| updateWebTextViewPadding(); |
| return true; |
| } else { |
| // The textfield is now off screen. The user probably |
| // was not zooming to see the textfield better. Remove |
| // the WebTextView. If the user types a key, and the |
| // textfield is still in focus, we will reconstruct |
| // the WebTextView and scroll it back on screen. |
| mWebTextView.remove(); |
| return false; |
| } |
| } |
| |
| void setBaseLayer(int layer, Region invalRegion, boolean showVisualIndicator, |
| boolean isPictureAfterFirstLayout) { |
| if (mNativeClass == 0) |
| return; |
| nativeSetBaseLayer(layer, invalRegion, showVisualIndicator, |
| isPictureAfterFirstLayout); |
| if (mHTML5VideoViewProxy != null) { |
| mHTML5VideoViewProxy.setBaseLayer(layer); |
| } |
| } |
| |
| int getBaseLayer() { |
| return nativeGetBaseLayer(); |
| } |
| |
| private void onZoomAnimationStart() { |
| // If it is in password mode, turn it off so it does not draw misplaced. |
| if (inEditingMode() && nativeFocusCandidateIsPassword()) { |
| mWebTextView.setInPassword(false); |
| } |
| } |
| |
| private void onZoomAnimationEnd() { |
| // adjust the edit text view if needed |
| if (inEditingMode() && didUpdateWebTextViewDimensions(FULLY_ON_SCREEN) |
| && nativeFocusCandidateIsPassword()) { |
| // If it is a password field, start drawing the WebTextView once |
| // again. |
| mWebTextView.setInPassword(true); |
| } |
| } |
| |
| void onFixedLengthZoomAnimationStart() { |
| WebViewCore.pauseUpdatePicture(getWebViewCore()); |
| onZoomAnimationStart(); |
| } |
| |
| void onFixedLengthZoomAnimationEnd() { |
| if (!mBlockWebkitViewMessages && !mSelectingText) { |
| WebViewCore.resumeUpdatePicture(mWebViewCore); |
| } |
| onZoomAnimationEnd(); |
| } |
| |
| private static final int ZOOM_BITS = Paint.FILTER_BITMAP_FLAG | |
| Paint.DITHER_FLAG | |
| Paint.SUBPIXEL_TEXT_FLAG; |
| private static final int SCROLL_BITS = Paint.FILTER_BITMAP_FLAG | |
| Paint.DITHER_FLAG; |
| |
| private final DrawFilter mZoomFilter = |
| new PaintFlagsDrawFilter(ZOOM_BITS, Paint.LINEAR_TEXT_FLAG); |
| // If we need to trade better quality for speed, set mScrollFilter to null |
| private final DrawFilter mScrollFilter = |
| new PaintFlagsDrawFilter(SCROLL_BITS, 0); |
| |
| private void drawCoreAndCursorRing(Canvas canvas, int color, |
| boolean drawCursorRing) { |
| if (mDrawHistory) { |
| canvas.scale(mZoomManager.getScale(), mZoomManager.getScale()); |
| canvas.drawPicture(mHistoryPicture); |
| return; |
| } |
| if (mNativeClass == 0) return; |
| |
| boolean animateZoom = mZoomManager.isFixedLengthAnimationInProgress(); |
| boolean animateScroll = ((!mScroller.isFinished() |
| || mVelocityTracker != null) |
| && (mTouchMode != TOUCH_DRAG_MODE || |
| mHeldMotionless != MOTIONLESS_TRUE)) |
| || mDeferTouchMode == TOUCH_DRAG_MODE; |
| if (mTouchMode == TOUCH_DRAG_MODE) { |
| if (mHeldMotionless == MOTIONLESS_PENDING) { |
| mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); |
| mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); |
| mHeldMotionless = MOTIONLESS_FALSE; |
| } |
| if (mHeldMotionless == MOTIONLESS_FALSE) { |
| mPrivateHandler.sendMessageDelayed(mPrivateHandler |
| .obtainMessage(DRAG_HELD_MOTIONLESS), MOTIONLESS_TIME); |
| mHeldMotionless = MOTIONLESS_PENDING; |
| } |
| } |
| if (animateZoom) { |
| mZoomManager.animateZoom(canvas); |
| } else if (!canvas.isHardwareAccelerated()) { |
| canvas.scale(mZoomManager.getScale(), mZoomManager.getScale()); |
| } |
| |
| boolean UIAnimationsRunning = false; |
| // Currently for each draw we compute the animation values; |
| // We may in the future decide to do that independently. |
| if (mNativeClass != 0 && nativeEvaluateLayersAnimations()) { |
| UIAnimationsRunning = true; |
| // If we have unfinished (or unstarted) animations, |
| // we ask for a repaint. We only need to do this in software |
| // rendering (with hardware rendering we already have a different |
| // method of requesting a repaint) |
| if (!canvas.isHardwareAccelerated()) |
| invalidate(); |
| } |
| |
| // decide which adornments to draw |
| int extras = DRAW_EXTRAS_NONE; |
| if (mFindIsUp) { |
| extras = DRAW_EXTRAS_FIND; |
| } else if (mSelectingText) { |
| extras = DRAW_EXTRAS_SELECTION; |
| nativeSetSelectionPointer(mDrawSelectionPointer, |
| mZoomManager.getInvScale(), |
| mSelectX, mSelectY - getTitleHeight()); |
| } else if (drawCursorRing) { |
| extras = DRAW_EXTRAS_CURSOR_RING; |
| } |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "mFindIsUp=" + mFindIsUp |
| + " mSelectingText=" + mSelectingText |
| + " nativePageShouldHandleShiftAndArrows()=" |
| + nativePageShouldHandleShiftAndArrows() |
| + " animateZoom=" + animateZoom |
| + " extras=" + extras); |
| } |
| |
| if (canvas.isHardwareAccelerated()) { |
| int functor = nativeGetDrawGLFunction(mGLViewportEmpty ? null : mGLRectViewport, |
| mGLViewportEmpty ? null : mViewRectViewport, getScale(), extras); |
| ((HardwareCanvas) canvas).callDrawGLFunction(functor); |
| } else { |
| DrawFilter df = null; |
| if (mZoomManager.isZoomAnimating() || UIAnimationsRunning) { |
| df = mZoomFilter; |
| } else if (animateScroll) { |
| df = mScrollFilter; |
| } |
| canvas.setDrawFilter(df); |
| // XXX: Revisit splitting content. Right now it causes a |
| // synchronization problem with layers. |
| int content = nativeDraw(canvas, color, extras, false); |
| canvas.setDrawFilter(null); |
| if (!mBlockWebkitViewMessages && content != 0) { |
| mWebViewCore.sendMessage(EventHub.SPLIT_PICTURE_SET, content, 0); |
| } |
| } |
| |
| if (extras == DRAW_EXTRAS_CURSOR_RING) { |
| if (mTouchMode == TOUCH_SHORTPRESS_START_MODE) { |
| mTouchMode = TOUCH_SHORTPRESS_MODE; |
| } |
| } |
| if (mFocusSizeChanged) { |
| mFocusSizeChanged = false; |
| // If we are zooming, this will get handled above, when the zoom |
| // finishes. We also do not need to do this unless the WebTextView |
| // is showing. |
| if (!animateZoom && inEditingMode()) { |
| didUpdateWebTextViewDimensions(ANYWHERE); |
| } |
| } |
| } |
| |
| // draw history |
| private boolean mDrawHistory = false; |
| private Picture mHistoryPicture = null; |
| private int mHistoryWidth = 0; |
| private int mHistoryHeight = 0; |
| |
| // Only check the flag, can be called from WebCore thread |
| boolean drawHistory() { |
| return mDrawHistory; |
| } |
| |
| int getHistoryPictureWidth() { |
| return (mHistoryPicture != null) ? mHistoryPicture.getWidth() : 0; |
| } |
| |
| // Should only be called in UI thread |
| void switchOutDrawHistory() { |
| if (null == mWebViewCore) return; // CallbackProxy may trigger this |
| if (mDrawHistory && (getProgress() == 100 || nativeHasContent())) { |
| mDrawHistory = false; |
| mHistoryPicture = null; |
| invalidate(); |
| int oldScrollX = mScrollX; |
| int oldScrollY = mScrollY; |
| mScrollX = pinLocX(mScrollX); |
| mScrollY = pinLocY(mScrollY); |
| if (oldScrollX != mScrollX || oldScrollY != mScrollY) { |
| onScrollChanged(mScrollX, mScrollY, oldScrollX, oldScrollY); |
| } else { |
| sendOurVisibleRect(); |
| } |
| } |
| } |
| |
| WebViewCore.CursorData cursorData() { |
| WebViewCore.CursorData result = cursorDataNoPosition(); |
| Point position = nativeCursorPosition(); |
| result.mX = position.x; |
| result.mY = position.y; |
| return result; |
| } |
| |
| WebViewCore.CursorData cursorDataNoPosition() { |
| WebViewCore.CursorData result = new WebViewCore.CursorData(); |
| result.mMoveGeneration = nativeMoveGeneration(); |
| result.mFrame = nativeCursorFramePointer(); |
| return result; |
| } |
| |
| /** |
| * Delete text from start to end in the focused textfield. If there is no |
| * focus, or if start == end, silently fail. If start and end are out of |
| * order, swap them. |
| * @param start Beginning of selection to delete. |
| * @param end End of selection to delete. |
| */ |
| /* package */ void deleteSelection(int start, int end) { |
| mTextGeneration++; |
| WebViewCore.TextSelectionData data |
| = new WebViewCore.TextSelectionData(start, end); |
| mWebViewCore.sendMessage(EventHub.DELETE_SELECTION, mTextGeneration, 0, |
| data); |
| } |
| |
| /** |
| * Set the selection to (start, end) in the focused textfield. If start and |
| * end are out of order, swap them. |
| * @param start Beginning of selection. |
| * @param end End of selection. |
| */ |
| /* package */ void setSelection(int start, int end) { |
| if (mWebViewCore != null) { |
| mWebViewCore.sendMessage(EventHub.SET_SELECTION, start, end); |
| } |
| } |
| |
| @Override |
| public InputConnection onCreateInputConnection(EditorInfo outAttrs) { |
| InputConnection connection = super.onCreateInputConnection(outAttrs); |
| outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_FULLSCREEN; |
| return connection; |
| } |
| |
| /** |
| * Called in response to a message from webkit telling us that the soft |
| * keyboard should be launched. |
| */ |
| private void displaySoftKeyboard(boolean isTextView) { |
| InputMethodManager imm = (InputMethodManager) |
| getContext().getSystemService(Context.INPUT_METHOD_SERVICE); |
| |
| // bring it back to the default level scale so that user can enter text |
| boolean zoom = mZoomManager.getScale() < mZoomManager.getDefaultScale(); |
| if (zoom) { |
| mZoomManager.setZoomCenter(mLastTouchX, mLastTouchY); |
| mZoomManager.setZoomScale(mZoomManager.getDefaultScale(), false); |
| } |
| if (isTextView) { |
| rebuildWebTextView(); |
| if (inEditingMode()) { |
| imm.showSoftInput(mWebTextView, 0, mWebTextView.getResultReceiver()); |
| if (zoom) { |
| didUpdateWebTextViewDimensions(INTERSECTS_SCREEN); |
| } |
| return; |
| } |
| } |
| // Used by plugins and contentEditable. |
| // Also used if the navigation cache is out of date, and |
| // does not recognize that a textfield is in focus. In that |
| // case, use WebView as the targeted view. |
| // see http://b/issue?id=2457459 |
| imm.showSoftInput(this, 0); |
| } |
| |
| // Called by WebKit to instruct the UI to hide the keyboard |
| private void hideSoftKeyboard() { |
| InputMethodManager imm = InputMethodManager.peekInstance(); |
| if (imm != null && (imm.isActive(this) |
| || (inEditingMode() && imm.isActive(mWebTextView)))) { |
| imm.hideSoftInputFromWindow(this.getWindowToken(), 0); |
| } |
| } |
| |
| /* |
| * This method checks the current focus and cursor and potentially rebuilds |
| * mWebTextView to have the appropriate properties, such as password, |
| * multiline, and what text it contains. It also removes it if necessary. |
| */ |
| /* package */ void rebuildWebTextView() { |
| // If the WebView does not have focus, do nothing until it gains focus. |
| if (!hasFocus() && (null == mWebTextView || !mWebTextView.hasFocus())) { |
| return; |
| } |
| boolean alreadyThere = inEditingMode(); |
| // inEditingMode can only return true if mWebTextView is non-null, |
| // so we can safely call remove() if (alreadyThere) |
| if (0 == mNativeClass || !nativeFocusCandidateIsTextInput()) { |
| if (alreadyThere) { |
| mWebTextView.remove(); |
| } |
| return; |
| } |
| // At this point, we know we have found an input field, so go ahead |
| // and create the WebTextView if necessary. |
| if (mWebTextView == null) { |
| mWebTextView = new WebTextView(mContext, WebView.this, mAutoFillData.getQueryId()); |
| // Initialize our generation number. |
| mTextGeneration = 0; |
| } |
| mWebTextView.updateTextSize(); |
| Rect visibleRect = new Rect(); |
| calcOurContentVisibleRect(visibleRect); |
| // Note that sendOurVisibleRect calls viewToContent, so the coordinates |
| // should be in content coordinates. |
| Rect bounds = nativeFocusCandidateNodeBounds(); |
| Rect vBox = contentToViewRect(bounds); |
| mWebTextView.setRect(vBox.left, vBox.top, vBox.width(), vBox.height()); |
| if (!Rect.intersects(bounds, visibleRect)) { |
| revealSelection(); |
| } |
| String text = nativeFocusCandidateText(); |
| int nodePointer = nativeFocusCandidatePointer(); |
| if (alreadyThere && mWebTextView.isSameTextField(nodePointer)) { |
| // It is possible that we have the same textfield, but it has moved, |
| // i.e. In the case of opening/closing the screen. |
| // In that case, we need to set the dimensions, but not the other |
| // aspects. |
| // If the text has been changed by webkit, update it. However, if |
| // there has been more UI text input, ignore it. We will receive |
| // another update when that text is recognized. |
| if (text != null && !text.equals(mWebTextView.getText().toString()) |
| && nativeTextGeneration() == mTextGeneration) { |
| mWebTextView.setTextAndKeepSelection(text); |
| } |
| } else { |
| mWebTextView.setGravity(nativeFocusCandidateIsRtlText() ? |
| Gravity.RIGHT : Gravity.NO_GRAVITY); |
| // This needs to be called before setType, which may call |
| // requestFormData, and it needs to have the correct nodePointer. |
| mWebTextView.setNodePointer(nodePointer); |
| mWebTextView.setType(nativeFocusCandidateType()); |
| updateWebTextViewPadding(); |
| if (null == text) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "rebuildWebTextView null == text"); |
| } |
| text = ""; |
| } |
| mWebTextView.setTextAndKeepSelection(text); |
| InputMethodManager imm = InputMethodManager.peekInstance(); |
| if (imm != null && imm.isActive(mWebTextView)) { |
| imm.restartInput(mWebTextView); |
| } |
| } |
| if (isFocused()) { |
| mWebTextView.requestFocus(); |
| } |
| } |
| |
| /** |
| * Update the padding of mWebTextView based on the native textfield/textarea |
| */ |
| void updateWebTextViewPadding() { |
| Rect paddingRect = nativeFocusCandidatePaddingRect(); |
| if (paddingRect != null) { |
| // Use contentToViewDimension since these are the dimensions of |
| // the padding. |
| mWebTextView.setPadding( |
| contentToViewDimension(paddingRect.left), |
| contentToViewDimension(paddingRect.top), |
| contentToViewDimension(paddingRect.right), |
| contentToViewDimension(paddingRect.bottom)); |
| } |
| } |
| |
| /** |
| * Tell webkit to put the cursor on screen. |
| */ |
| /* package */ void revealSelection() { |
| if (mWebViewCore != null) { |
| mWebViewCore.sendMessage(EventHub.REVEAL_SELECTION); |
| } |
| } |
| |
| /** |
| * Called by WebTextView to find saved form data associated with the |
| * textfield |
| * @param name Name of the textfield. |
| * @param nodePointer Pointer to the node of the textfield, so it can be |
| * compared to the currently focused textfield when the data is |
| * retrieved. |
| * @param autoFillable true if WebKit has determined this field is part of |
| * a form that can be auto filled. |
| * @param autoComplete true if the attribute "autocomplete" is set to true |
| * on the textfield. |
| */ |
| /* package */ void requestFormData(String name, int nodePointer, |
| boolean autoFillable, boolean autoComplete) { |
| if (mWebViewCore.getSettings().getSaveFormData()) { |
| Message update = mPrivateHandler.obtainMessage(REQUEST_FORM_DATA); |
| update.arg1 = nodePointer; |
| RequestFormData updater = new RequestFormData(name, getUrl(), |
| update, autoFillable, autoComplete); |
| Thread t = new Thread(updater); |
| t.start(); |
| } |
| } |
| |
| /** |
| * Pass a message to find out the <label> associated with the <input> |
| * identified by nodePointer |
| * @param framePointer Pointer to the frame containing the <input> node |
| * @param nodePointer Pointer to the node for which a <label> is desired. |
| */ |
| /* package */ void requestLabel(int framePointer, int nodePointer) { |
| mWebViewCore.sendMessage(EventHub.REQUEST_LABEL, framePointer, |
| nodePointer); |
| } |
| |
| /* |
| * This class requests an Adapter for the WebTextView which shows past |
| * entries stored in the database. It is a Runnable so that it can be done |
| * in its own thread, without slowing down the UI. |
| */ |
| private class RequestFormData implements Runnable { |
| private String mName; |
| private String mUrl; |
| private Message mUpdateMessage; |
| private boolean mAutoFillable; |
| private boolean mAutoComplete; |
| |
| public RequestFormData(String name, String url, Message msg, |
| boolean autoFillable, boolean autoComplete) { |
| mName = name; |
| mUrl = url; |
| mUpdateMessage = msg; |
| mAutoFillable = autoFillable; |
| mAutoComplete = autoComplete; |
| } |
| |
| public void run() { |
| ArrayList<String> pastEntries = new ArrayList<String>(); |
| |
| if (mAutoFillable) { |
| // Note that code inside the adapter click handler in WebTextView depends |
| // on the AutoFill item being at the top of the drop down list. If you change |
| // the order, make sure to do it there too! |
| WebSettings settings = getSettings(); |
| if (settings != null && settings.getAutoFillProfile() != null) { |
| pastEntries.add(getResources().getText( |
| com.android.internal.R.string.autofill_this_form).toString() + |
| " " + |
| mAutoFillData.getPreviewString()); |
| mWebTextView.setAutoFillProfileIsSet(true); |
| } else { |
| // There is no autofill profile set up yet, so add an option that |
| // will invite the user to set their profile up. |
| pastEntries.add(getResources().getText( |
| com.android.internal.R.string.setup_autofill).toString()); |
| mWebTextView.setAutoFillProfileIsSet(false); |
| } |
| } |
| |
| if (mAutoComplete) { |
| pastEntries.addAll(mDatabase.getFormData(mUrl, mName)); |
| } |
| |
| if (pastEntries.size() > 0) { |
| AutoCompleteAdapter adapter = new |
| AutoCompleteAdapter(mContext, pastEntries); |
| mUpdateMessage.obj = adapter; |
| mUpdateMessage.sendToTarget(); |
| } |
| } |
| } |
| |
| /** |
| * Dump the display tree to "/sdcard/displayTree.txt" |
| * |
| * @hide debug only |
| */ |
| public void dumpDisplayTree() { |
| nativeDumpDisplayTree(getUrl()); |
| } |
| |
| /** |
| * Dump the dom tree to adb shell if "toFile" is False, otherwise dump it to |
| * "/sdcard/domTree.txt" |
| * |
| * @hide debug only |
| */ |
| public void dumpDomTree(boolean toFile) { |
| mWebViewCore.sendMessage(EventHub.DUMP_DOMTREE, toFile ? 1 : 0, 0); |
| } |
| |
| /** |
| * Dump the render tree to adb shell if "toFile" is False, otherwise dump it |
| * to "/sdcard/renderTree.txt" |
| * |
| * @hide debug only |
| */ |
| public void dumpRenderTree(boolean toFile) { |
| mWebViewCore.sendMessage(EventHub.DUMP_RENDERTREE, toFile ? 1 : 0, 0); |
| } |
| |
| /** |
| * Called by DRT on UI thread, need to proxy to WebCore thread. |
| * |
| * @hide debug only |
| */ |
| public void useMockDeviceOrientation() { |
| mWebViewCore.sendMessage(EventHub.USE_MOCK_DEVICE_ORIENTATION); |
| } |
| |
| /** |
| * Called by DRT on WebCore thread. |
| * |
| * @hide debug only |
| */ |
| public void setMockDeviceOrientation(boolean canProvideAlpha, double alpha, |
| boolean canProvideBeta, double beta, boolean canProvideGamma, double gamma) { |
| mWebViewCore.setMockDeviceOrientation(canProvideAlpha, alpha, canProvideBeta, beta, |
| canProvideGamma, gamma); |
| } |
| |
| /** |
| * Dump the V8 counters to standard output. |
| * Note that you need a build with V8 and WEBCORE_INSTRUMENTATION set to |
| * true. Otherwise, this will do nothing. |
| * |
| * @hide debug only |
| */ |
| public void dumpV8Counters() { |
| mWebViewCore.sendMessage(EventHub.DUMP_V8COUNTERS); |
| } |
| |
| // This is used to determine long press with the center key. Does not |
| // affect long press with the trackball/touch. |
| private boolean mGotCenterDown = false; |
| |
| @Override |
| public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { |
| if (mBlockWebkitViewMessages) { |
| return false; |
| } |
| // send complex characters to webkit for use by JS and plugins |
| if (keyCode == KeyEvent.KEYCODE_UNKNOWN && event.getCharacters() != null) { |
| // pass the key to DOM |
| mWebViewCore.sendMessage(EventHub.KEY_DOWN, event); |
| mWebViewCore.sendMessage(EventHub.KEY_UP, event); |
| // return true as DOM handles the key |
| return true; |
| } |
| return false; |
| } |
| |
| private boolean isEnterActionKey(int keyCode) { |
| return keyCode == KeyEvent.KEYCODE_DPAD_CENTER |
| || keyCode == KeyEvent.KEYCODE_ENTER |
| || keyCode == KeyEvent.KEYCODE_NUMPAD_ENTER; |
| } |
| |
| @Override |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "keyDown at " + System.currentTimeMillis() |
| + "keyCode=" + keyCode |
| + ", " + event + ", unicode=" + event.getUnicodeChar()); |
| } |
| if (mBlockWebkitViewMessages) { |
| return false; |
| } |
| |
| // don't implement accelerator keys here; defer to host application |
| if (event.isCtrlPressed()) { |
| return false; |
| } |
| |
| if (mNativeClass == 0) { |
| return false; |
| } |
| |
| // do this hack up front, so it always works, regardless of touch-mode |
| if (AUTO_REDRAW_HACK && (keyCode == KeyEvent.KEYCODE_CALL)) { |
| mAutoRedraw = !mAutoRedraw; |
| if (mAutoRedraw) { |
| invalidate(); |
| } |
| return true; |
| } |
| |
| // Bubble up the key event if |
| // 1. it is a system key; or |
| // 2. the host application wants to handle it; |
| if (event.isSystem() |
| || mCallbackProxy.uiOverrideKeyEvent(event)) { |
| return false; |
| } |
| |
| // accessibility support |
| if (accessibilityScriptInjected()) { |
| if (AccessibilityManager.getInstance(mContext).isEnabled()) { |
| // if an accessibility script is injected we delegate to it the key handling. |
| // this script is a screen reader which is a fully fledged solution for blind |
| // users to navigate in and interact with web pages. |
| mWebViewCore.sendMessage(EventHub.KEY_DOWN, event); |
| return true; |
| } else { |
| // Clean up if accessibility was disabled after loading the current URL. |
| mAccessibilityScriptInjected = false; |
| } |
| } else if (mAccessibilityInjector != null) { |
| if (AccessibilityManager.getInstance(mContext).isEnabled()) { |
| if (mAccessibilityInjector.onKeyEvent(event)) { |
| // if an accessibility injector is present (no JavaScript enabled or the site |
| // opts out injecting our JavaScript screen reader) we let it decide whether |
| // to act on and consume the event. |
| return true; |
| } |
| } else { |
| // Clean up if accessibility was disabled after loading the current URL. |
| mAccessibilityInjector = null; |
| } |
| } |
| |
| if (keyCode == KeyEvent.KEYCODE_PAGE_UP) { |
| if (event.hasNoModifiers()) { |
| pageUp(false); |
| return true; |
| } else if (event.hasModifiers(KeyEvent.META_ALT_ON)) { |
| pageUp(true); |
| return true; |
| } |
| } |
| |
| if (keyCode == KeyEvent.KEYCODE_PAGE_DOWN) { |
| if (event.hasNoModifiers()) { |
| pageDown(false); |
| return true; |
| } else if (event.hasModifiers(KeyEvent.META_ALT_ON)) { |
| pageDown(true); |
| return true; |
| } |
| } |
| |
| if (keyCode == KeyEvent.KEYCODE_MOVE_HOME && event.hasNoModifiers()) { |
| pageUp(true); |
| return true; |
| } |
| |
| if (keyCode == KeyEvent.KEYCODE_MOVE_END && event.hasNoModifiers()) { |
| pageDown(true); |
| return true; |
| } |
| |
| if (keyCode >= KeyEvent.KEYCODE_DPAD_UP |
| && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) { |
| switchOutDrawHistory(); |
| if (nativePageShouldHandleShiftAndArrows()) { |
| letPageHandleNavKey(keyCode, event.getEventTime(), true, event.getMetaState()); |
| return true; |
| } |
| if (event.hasModifiers(KeyEvent.META_ALT_ON)) { |
| switch (keyCode) { |
| case KeyEvent.KEYCODE_DPAD_UP: |
| pageUp(true); |
| return true; |
| case KeyEvent.KEYCODE_DPAD_DOWN: |
| pageDown(true); |
| return true; |
| case KeyEvent.KEYCODE_DPAD_LEFT: |
| nativeClearCursor(); // start next trackball movement from page edge |
| return pinScrollTo(0, mScrollY, true, 0); |
| case KeyEvent.KEYCODE_DPAD_RIGHT: |
| nativeClearCursor(); // start next trackball movement from page edge |
| return pinScrollTo(mContentWidth, mScrollY, true, 0); |
| } |
| } |
| if (mSelectingText) { |
| int xRate = keyCode == KeyEvent.KEYCODE_DPAD_LEFT |
| ? -1 : keyCode == KeyEvent.KEYCODE_DPAD_RIGHT ? 1 : 0; |
| int yRate = keyCode == KeyEvent.KEYCODE_DPAD_UP ? |
| -1 : keyCode == KeyEvent.KEYCODE_DPAD_DOWN ? 1 : 0; |
| int multiplier = event.getRepeatCount() + 1; |
| moveSelection(xRate * multiplier, yRate * multiplier); |
| return true; |
| } |
| if (navHandledKey(keyCode, 1, false, event.getEventTime())) { |
| playSoundEffect(keyCodeToSoundsEffect(keyCode)); |
| return true; |
| } |
| // Bubble up the key event as WebView doesn't handle it |
| return false; |
| } |
| |
| if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) { |
| switchOutDrawHistory(); |
| boolean wantsKeyEvents = nativeCursorNodePointer() == 0 |
| || nativeCursorWantsKeyEvents(); |
| if (event.getRepeatCount() == 0) { |
| if (mSelectingText) { |
| return true; // discard press if copy in progress |
| } |
| mGotCenterDown = true; |
| mPrivateHandler.sendMessageDelayed(mPrivateHandler |
| .obtainMessage(LONG_PRESS_CENTER), LONG_PRESS_TIMEOUT); |
| // Already checked mNativeClass, so we do not need to check it |
| // again. |
| nativeRecordButtons(hasFocus() && hasWindowFocus(), true, true); |
| if (!wantsKeyEvents) return true; |
| } |
| // Bubble up the key event as WebView doesn't handle it |
| if (!wantsKeyEvents) return false; |
| } |
| |
| if (getSettings().getNavDump()) { |
| switch (keyCode) { |
| case KeyEvent.KEYCODE_4: |
| dumpDisplayTree(); |
| break; |
| case KeyEvent.KEYCODE_5: |
| case KeyEvent.KEYCODE_6: |
| dumpDomTree(keyCode == KeyEvent.KEYCODE_5); |
| break; |
| case KeyEvent.KEYCODE_7: |
| case KeyEvent.KEYCODE_8: |
| dumpRenderTree(keyCode == KeyEvent.KEYCODE_7); |
| break; |
| case KeyEvent.KEYCODE_9: |
| nativeInstrumentReport(); |
| return true; |
| } |
| } |
| |
| if (nativeCursorIsTextInput()) { |
| // This message will put the node in focus, for the DOM's notion |
| // of focus. |
| mWebViewCore.sendMessage(EventHub.FAKE_CLICK, nativeCursorFramePointer(), |
| nativeCursorNodePointer()); |
| // This will bring up the WebTextView and put it in focus, for |
| // our view system's notion of focus |
| rebuildWebTextView(); |
| // Now we need to pass the event to it |
| if (inEditingMode()) { |
| mWebTextView.setDefaultSelection(); |
| return mWebTextView.dispatchKeyEvent(event); |
| } |
| } else if (nativeHasFocusNode()) { |
| // In this case, the cursor is not on a text input, but the focus |
| // might be. Check it, and if so, hand over to the WebTextView. |
| rebuildWebTextView(); |
| if (inEditingMode()) { |
| mWebTextView.setDefaultSelection(); |
| return mWebTextView.dispatchKeyEvent(event); |
| } |
| } |
| |
| // TODO: should we pass all the keys to DOM or check the meta tag |
| if (nativeCursorWantsKeyEvents() || true) { |
| // pass the key to DOM |
| mWebViewCore.sendMessage(EventHub.KEY_DOWN, event); |
| // return true as DOM handles the key |
| return true; |
| } |
| |
| // Bubble up the key event as WebView doesn't handle it |
| return false; |
| } |
| |
| @Override |
| public boolean onKeyUp(int keyCode, KeyEvent event) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "keyUp at " + System.currentTimeMillis() |
| + ", " + event + ", unicode=" + event.getUnicodeChar()); |
| } |
| if (mBlockWebkitViewMessages) { |
| return false; |
| } |
| |
| if (mNativeClass == 0) { |
| return false; |
| } |
| |
| // special CALL handling when cursor node's href is "tel:XXX" |
| if (keyCode == KeyEvent.KEYCODE_CALL && nativeHasCursorNode()) { |
| String text = nativeCursorText(); |
| if (!nativeCursorIsTextInput() && text != null |
| && text.startsWith(SCHEME_TEL)) { |
| Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse(text)); |
| getContext().startActivity(intent); |
| return true; |
| } |
| } |
| |
| // Bubble up the key event if |
| // 1. it is a system key; or |
| // 2. the host application wants to handle it; |
| if (event.isSystem() |
| || mCallbackProxy.uiOverrideKeyEvent(event)) { |
| return false; |
| } |
| |
| // accessibility support |
| if (accessibilityScriptInjected()) { |
| if (AccessibilityManager.getInstance(mContext).isEnabled()) { |
| // if an accessibility script is injected we delegate to it the key handling. |
| // this script is a screen reader which is a fully fledged solution for blind |
| // users to navigate in and interact with web pages. |
| mWebViewCore.sendMessage(EventHub.KEY_UP, event); |
| return true; |
| } else { |
| // Clean up if accessibility was disabled after loading the current URL. |
| mAccessibilityScriptInjected = false; |
| } |
| } else if (mAccessibilityInjector != null) { |
| if (AccessibilityManager.getInstance(mContext).isEnabled()) { |
| if (mAccessibilityInjector.onKeyEvent(event)) { |
| // if an accessibility injector is present (no JavaScript enabled or the site |
| // opts out injecting our JavaScript screen reader) we let it decide whether to |
| // act on and consume the event. |
| return true; |
| } |
| } else { |
| // Clean up if accessibility was disabled after loading the current URL. |
| mAccessibilityInjector = null; |
| } |
| } |
| |
| if (keyCode >= KeyEvent.KEYCODE_DPAD_UP |
| && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) { |
| if (nativePageShouldHandleShiftAndArrows()) { |
| letPageHandleNavKey(keyCode, event.getEventTime(), false, event.getMetaState()); |
| return true; |
| } |
| // always handle the navigation keys in the UI thread |
| // Bubble up the key event as WebView doesn't handle it |
| return false; |
| } |
| |
| if (isEnterActionKey(keyCode)) { |
| // remove the long press message first |
| mPrivateHandler.removeMessages(LONG_PRESS_CENTER); |
| mGotCenterDown = false; |
| |
| if (mSelectingText) { |
| if (mExtendSelection) { |
| copySelection(); |
| selectionDone(); |
| } else { |
| mExtendSelection = true; |
| nativeSetExtendSelection(); |
| invalidate(); // draw the i-beam instead of the arrow |
| } |
| return true; // discard press if copy in progress |
| } |
| |
| // perform the single click |
| Rect visibleRect = sendOurVisibleRect(); |
| // Note that sendOurVisibleRect calls viewToContent, so the |
| // coordinates should be in content coordinates. |
| if (!nativeCursorIntersects(visibleRect)) { |
| return false; |
| } |
| WebViewCore.CursorData data = cursorData(); |
| mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, data); |
| playSoundEffect(SoundEffectConstants.CLICK); |
| if (nativeCursorIsTextInput()) { |
| rebuildWebTextView(); |
| centerKeyPressOnTextField(); |
| if (inEditingMode()) { |
| mWebTextView.setDefaultSelection(); |
| } |
| return true; |
| } |
| clearTextEntry(); |
| nativeShowCursorTimed(); |
| if (mCallbackProxy.uiOverrideUrlLoading(nativeCursorText())) { |
| return true; |
| } |
| if (nativeCursorNodePointer() != 0 && !nativeCursorWantsKeyEvents()) { |
| mWebViewCore.sendMessage(EventHub.CLICK, data.mFrame, |
| nativeCursorNodePointer()); |
| return true; |
| } |
| } |
| |
| // TODO: should we pass all the keys to DOM or check the meta tag |
| if (nativeCursorWantsKeyEvents() || true) { |
| // pass the key to DOM |
| mWebViewCore.sendMessage(EventHub.KEY_UP, event); |
| // return true as DOM handles the key |
| return true; |
| } |
| |
| // Bubble up the key event as WebView doesn't handle it |
| return false; |
| } |
| |
| /* |
| * Enter selecting text mode, and see if CAB should be shown. |
| * Returns true if the WebView is now in |
| * selecting text mode (including if it was already in that mode, and this |
| * method did nothing). |
| */ |
| private boolean setUpSelect(boolean selectWord, int x, int y) { |
| if (0 == mNativeClass) return false; // client isn't initialized |
| if (inFullScreenMode()) return false; |
| if (mSelectingText) return true; |
| nativeResetSelection(); |
| if (selectWord && !nativeWordSelection(x, y)) { |
| selectionDone(); |
| return false; |
| } |
| mSelectCallback = new SelectActionModeCallback(); |
| mSelectCallback.setWebView(this); |
| if (startActionMode(mSelectCallback) == null) { |
| // There is no ActionMode, so do not allow the user to modify a |
| // selection. |
| selectionDone(); |
| return false; |
| } |
| mExtendSelection = false; |
| mSelectingText = mDrawSelectionPointer = true; |
| // don't let the picture change during text selection |
| WebViewCore.pauseUpdatePicture(mWebViewCore); |
| if (nativeHasCursorNode()) { |
| Rect rect = nativeCursorNodeBounds(); |
| mSelectX = contentToViewX(rect.left); |
| mSelectY = contentToViewY(rect.top); |
| } else if (mLastTouchY > getVisibleTitleHeight()) { |
| mSelectX = mScrollX + mLastTouchX; |
| mSelectY = mScrollY + mLastTouchY; |
| } else { |
| mSelectX = mScrollX + getViewWidth() / 2; |
| mSelectY = mScrollY + getViewHeightWithTitle() / 2; |
| } |
| nativeHideCursor(); |
| mMinAutoScrollX = 0; |
| mMaxAutoScrollX = getViewWidth(); |
| mMinAutoScrollY = 0; |
| mMaxAutoScrollY = getViewHeightWithTitle(); |
| mScrollingLayer = nativeScrollableLayer(viewToContentX(mSelectX), |
| viewToContentY(mSelectY), mScrollingLayerRect, |
| mScrollingLayerBounds); |
| if (mScrollingLayer != 0) { |
| if (mScrollingLayerRect.left != mScrollingLayerRect.right) { |
| mMinAutoScrollX = Math.max(mMinAutoScrollX, |
| contentToViewX(mScrollingLayerBounds.left)); |
| mMaxAutoScrollX = Math.min(mMaxAutoScrollX, |
| contentToViewX(mScrollingLayerBounds.right)); |
| } |
| if (mScrollingLayerRect.top != mScrollingLayerRect.bottom) { |
| mMinAutoScrollY = Math.max(mMinAutoScrollY, |
| contentToViewY(mScrollingLayerBounds.top)); |
| mMaxAutoScrollY = Math.min(mMaxAutoScrollY, |
| contentToViewY(mScrollingLayerBounds.bottom)); |
| } |
| } |
| mMinAutoScrollX += SELECT_SCROLL; |
| mMaxAutoScrollX -= SELECT_SCROLL; |
| mMinAutoScrollY += SELECT_SCROLL; |
| mMaxAutoScrollY -= SELECT_SCROLL; |
| return true; |
| } |
| |
| /** |
| * Use this method to put the WebView into text selection mode. |
| * Do not rely on this functionality; it will be deprecated in the future. |
| * @deprecated This method is now obsolete. |
| */ |
| @Deprecated |
| public void emulateShiftHeld() { |
| checkThread(); |
| setUpSelect(false, 0, 0); |
| } |
| |
| /** |
| * Select all of the text in this WebView. |
| * |
| * @hide pending API council approval. |
| */ |
| public void selectAll() { |
| if (0 == mNativeClass) return; // client isn't initialized |
| if (inFullScreenMode()) return; |
| if (!mSelectingText) { |
| // retrieve a point somewhere within the text |
| Point select = nativeSelectableText(); |
| if (!selectText(select.x, select.y)) return; |
| } |
| nativeSelectAll(); |
| mDrawSelectionPointer = false; |
| mExtendSelection = true; |
| invalidate(); |
| } |
| |
| /** |
| * Called when the selection has been removed. |
| */ |
| void selectionDone() { |
| if (mSelectingText) { |
| mSelectingText = false; |
| // finish is idempotent, so this is fine even if selectionDone was |
| // called by mSelectCallback.onDestroyActionMode |
| mSelectCallback.finish(); |
| mSelectCallback = null; |
| WebViewCore.resumePriority(); |
| WebViewCore.resumeUpdatePicture(mWebViewCore); |
| invalidate(); // redraw without selection |
| mAutoScrollX = 0; |
| mAutoScrollY = 0; |
| mSentAutoScrollMessage = false; |
| } |
| } |
| |
| /** |
| * Copy the selection to the clipboard |
| * |
| * @hide pending API council approval. |
| */ |
| public boolean copySelection() { |
| boolean copiedSomething = false; |
| String selection = getSelection(); |
| if (selection != null && selection != "") { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "copySelection \"" + selection + "\""); |
| } |
| Toast.makeText(mContext |
| , com.android.internal.R.string.text_copied |
| , Toast.LENGTH_SHORT).show(); |
| copiedSomething = true; |
| ClipboardManager cm = (ClipboardManager)getContext() |
| .getSystemService(Context.CLIPBOARD_SERVICE); |
| cm.setText(selection); |
| } |
| invalidate(); // remove selection region and pointer |
| return copiedSomething; |
| } |
| |
| /** |
| * @hide pending API Council approval. |
| */ |
| public SearchBox getSearchBox() { |
| if ((mWebViewCore == null) || (mWebViewCore.getBrowserFrame() == null)) { |
| return null; |
| } |
| return mWebViewCore.getBrowserFrame().getSearchBox(); |
| } |
| |
| /** |
| * Returns the currently highlighted text as a string. |
| */ |
| String getSelection() { |
| if (mNativeClass == 0) return ""; |
| return nativeGetSelection(); |
| } |
| |
| @Override |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| if (hasWindowFocus()) setActive(true); |
| final ViewTreeObserver treeObserver = getViewTreeObserver(); |
| if (mGlobalLayoutListener == null) { |
| mGlobalLayoutListener = new InnerGlobalLayoutListener(); |
| treeObserver.addOnGlobalLayoutListener(mGlobalLayoutListener); |
| } |
| if (mScrollChangedListener == null) { |
| mScrollChangedListener = new InnerScrollChangedListener(); |
| treeObserver.addOnScrollChangedListener(mScrollChangedListener); |
| } |
| |
| addAccessibilityApisToJavaScript(); |
| |
| mTouchEventQueue.reset(); |
| } |
| |
| @Override |
| protected void onDetachedFromWindow() { |
| clearHelpers(); |
| mZoomManager.dismissZoomPicker(); |
| if (hasWindowFocus()) setActive(false); |
| |
| final ViewTreeObserver treeObserver = getViewTreeObserver(); |
| if (mGlobalLayoutListener != null) { |
| treeObserver.removeGlobalOnLayoutListener(mGlobalLayoutListener); |
| mGlobalLayoutListener = null; |
| } |
| if (mScrollChangedListener != null) { |
| treeObserver.removeOnScrollChangedListener(mScrollChangedListener); |
| mScrollChangedListener = null; |
| } |
| |
| removeAccessibilityApisFromJavaScript(); |
| |
| super.onDetachedFromWindow(); |
| } |
| |
| @Override |
| protected void onVisibilityChanged(View changedView, int visibility) { |
| super.onVisibilityChanged(changedView, visibility); |
| // The zoomManager may be null if the webview is created from XML that |
| // specifies the view's visibility param as not visible (see http://b/2794841) |
| if (visibility != View.VISIBLE && mZoomManager != null) { |
| mZoomManager.dismissZoomPicker(); |
| } |
| } |
| |
| /** |
| * @deprecated WebView no longer needs to implement |
| * ViewGroup.OnHierarchyChangeListener. This method does nothing now. |
| */ |
| @Deprecated |
| public void onChildViewAdded(View parent, View child) {} |
| |
| /** |
| * @deprecated WebView no longer needs to implement |
| * ViewGroup.OnHierarchyChangeListener. This method does nothing now. |
| */ |
| @Deprecated |
| public void onChildViewRemoved(View p, View child) {} |
| |
| /** |
| * @deprecated WebView should not have implemented |
| * ViewTreeObserver.OnGlobalFocusChangeListener. This method does nothing now. |
| */ |
| @Deprecated |
| public void onGlobalFocusChanged(View oldFocus, View newFocus) { |
| } |
| |
| void setActive(boolean active) { |
| if (active) { |
| if (hasFocus()) { |
| // If our window regained focus, and we have focus, then begin |
| // drawing the cursor ring |
| mDrawCursorRing = true; |
| setFocusControllerActive(true); |
| if (mNativeClass != 0) { |
| nativeRecordButtons(true, false, true); |
| } |
| } else { |
| if (!inEditingMode()) { |
| // If our window gained focus, but we do not have it, do not |
| // draw the cursor ring. |
| mDrawCursorRing = false; |
| setFocusControllerActive(false); |
| } |
| // We do not call nativeRecordButtons here because we assume |
| // that when we lost focus, or window focus, it got called with |
| // false for the first parameter |
| } |
| } else { |
| if (!mZoomManager.isZoomPickerVisible()) { |
| /* |
| * The external zoom controls come in their own window, so our |
| * window loses focus. Our policy is to not draw the cursor ring |
| * if our window is not focused, but this is an exception since |
| * the user can still navigate the web page with the zoom |
| * controls showing. |
| */ |
| mDrawCursorRing = false; |
| } |
| mKeysPressed.clear(); |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| mTouchMode = TOUCH_DONE_MODE; |
| if (mNativeClass != 0) { |
| nativeRecordButtons(false, false, true); |
| } |
| setFocusControllerActive(false); |
| } |
| invalidate(); |
| } |
| |
| // To avoid drawing the cursor ring, and remove the TextView when our window |
| // loses focus. |
| @Override |
| public void onWindowFocusChanged(boolean hasWindowFocus) { |
| setActive(hasWindowFocus); |
| if (hasWindowFocus) { |
| JWebCoreJavaBridge.setActiveWebView(this); |
| } else { |
| JWebCoreJavaBridge.removeActiveWebView(this); |
| } |
| super.onWindowFocusChanged(hasWindowFocus); |
| } |
| |
| /* |
| * Pass a message to WebCore Thread, telling the WebCore::Page's |
| * FocusController to be "inactive" so that it will |
| * not draw the blinking cursor. It gets set to "active" to draw the cursor |
| * in WebViewCore.cpp, when the WebCore thread receives key events/clicks. |
| */ |
| /* package */ void setFocusControllerActive(boolean active) { |
| if (mWebViewCore == null) return; |
| mWebViewCore.sendMessage(EventHub.SET_ACTIVE, active ? 1 : 0, 0); |
| // Need to send this message after the document regains focus. |
| if (active && mListBoxMessage != null) { |
| mWebViewCore.sendMessage(mListBoxMessage); |
| mListBoxMessage = null; |
| } |
| } |
| |
| @Override |
| protected void onFocusChanged(boolean focused, int direction, |
| Rect previouslyFocusedRect) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "MT focusChanged " + focused + ", " + direction); |
| } |
| if (focused) { |
| // When we regain focus, if we have window focus, resume drawing |
| // the cursor ring |
| if (hasWindowFocus()) { |
| mDrawCursorRing = true; |
| if (mNativeClass != 0) { |
| nativeRecordButtons(true, false, true); |
| } |
| setFocusControllerActive(true); |
| //} else { |
| // The WebView has gained focus while we do not have |
| // windowfocus. When our window lost focus, we should have |
| // called nativeRecordButtons(false...) |
| } |
| } else { |
| // When we lost focus, unless focus went to the TextView (which is |
| // true if we are in editing mode), stop drawing the cursor ring. |
| if (!inEditingMode()) { |
| mDrawCursorRing = false; |
| if (mNativeClass != 0) { |
| nativeRecordButtons(false, false, true); |
| } |
| setFocusControllerActive(false); |
| } |
| mKeysPressed.clear(); |
| } |
| |
| super.onFocusChanged(focused, direction, previouslyFocusedRect); |
| } |
| |
| void setGLRectViewport() { |
| // Use the getGlobalVisibleRect() to get the intersection among the parents |
| // visible == false means we're clipped - send a null rect down to indicate that |
| // we should not draw |
| boolean visible = getGlobalVisibleRect(mGLRectViewport); |
| if (visible) { |
| // Then need to invert the Y axis, just for GL |
| View rootView = getRootView(); |
| int rootViewHeight = rootView.getHeight(); |
| mViewRectViewport.set(mGLRectViewport); |
| int savedWebViewBottom = mGLRectViewport.bottom; |
| mGLRectViewport.bottom = rootViewHeight - mGLRectViewport.top - getVisibleTitleHeight(); |
| mGLRectViewport.top = rootViewHeight - savedWebViewBottom; |
| mGLViewportEmpty = false; |
| } else { |
| mGLViewportEmpty = true; |
| } |
| nativeUpdateDrawGLFunction(mGLViewportEmpty ? null : mGLRectViewport, |
| mGLViewportEmpty ? null : mViewRectViewport); |
| } |
| |
| /** |
| * @hide |
| */ |
| @Override |
| protected boolean setFrame(int left, int top, int right, int bottom) { |
| boolean changed = super.setFrame(left, top, right, bottom); |
| if (!changed && mHeightCanMeasure) { |
| // When mHeightCanMeasure is true, we will set mLastHeightSent to 0 |
| // in WebViewCore after we get the first layout. We do call |
| // requestLayout() when we get contentSizeChanged(). But the View |
| // system won't call onSizeChanged if the dimension is not changed. |
| // In this case, we need to call sendViewSizeZoom() explicitly to |
| // notify the WebKit about the new dimensions. |
| sendViewSizeZoom(false); |
| } |
| setGLRectViewport(); |
| return changed; |
| } |
| |
| @Override |
| protected void onSizeChanged(int w, int h, int ow, int oh) { |
| super.onSizeChanged(w, h, ow, oh); |
| |
| // adjust the max viewport width depending on the view dimensions. This |
| // is to ensure the scaling is not going insane. So do not shrink it if |
| // the view size is temporarily smaller, e.g. when soft keyboard is up. |
| int newMaxViewportWidth = (int) (Math.max(w, h) / mZoomManager.getDefaultMinZoomScale()); |
| if (newMaxViewportWidth > sMaxViewportWidth) { |
| sMaxViewportWidth = newMaxViewportWidth; |
| } |
| |
| mZoomManager.onSizeChanged(w, h, ow, oh); |
| |
| if (mLoadedPicture != null && mDelaySetPicture == null) { |
| // Size changes normally result in a new picture |
| // Re-set the loaded picture to simulate that |
| // However, do not update the base layer as that hasn't changed |
| setNewPicture(mLoadedPicture, false); |
| } |
| } |
| |
| @Override |
| protected void onScrollChanged(int l, int t, int oldl, int oldt) { |
| super.onScrollChanged(l, t, oldl, oldt); |
| if (!mInOverScrollMode) { |
| sendOurVisibleRect(); |
| // update WebKit if visible title bar height changed. The logic is same |
| // as getVisibleTitleHeight. |
| int titleHeight = getTitleHeight(); |
| if (Math.max(titleHeight - t, 0) != Math.max(titleHeight - oldt, 0)) { |
| sendViewSizeZoom(false); |
| } |
| } |
| } |
| |
| @Override |
| public boolean dispatchKeyEvent(KeyEvent event) { |
| switch (event.getAction()) { |
| case KeyEvent.ACTION_DOWN: |
| mKeysPressed.add(Integer.valueOf(event.getKeyCode())); |
| break; |
| case KeyEvent.ACTION_MULTIPLE: |
| // Always accept the action. |
| break; |
| case KeyEvent.ACTION_UP: |
| int location = mKeysPressed.indexOf(Integer.valueOf(event.getKeyCode())); |
| if (location == -1) { |
| // We did not receive the key down for this key, so do not |
| // handle the key up. |
| return false; |
| } else { |
| // We did receive the key down. Handle the key up, and |
| // remove it from our pressed keys. |
| mKeysPressed.remove(location); |
| } |
| break; |
| default: |
| // Accept the action. This should not happen, unless a new |
| // action is added to KeyEvent. |
| break; |
| } |
| if (inEditingMode() && mWebTextView.isFocused()) { |
| // Ensure that the WebTextView gets the event, even if it does |
| // not currently have a bounds. |
| return mWebTextView.dispatchKeyEvent(event); |
| } else { |
| return super.dispatchKeyEvent(event); |
| } |
| } |
| |
| /* |
| * Here is the snap align logic: |
| * 1. If it starts nearly horizontally or vertically, snap align; |
| * 2. If there is a dramitic direction change, let it go; |
| * |
| * Adjustable parameters. Angle is the radians on a unit circle, limited |
| * to quadrant 1. Values range from 0f (horizontal) to PI/2 (vertical) |
| */ |
| private static final float HSLOPE_TO_START_SNAP = .1f; |
| private static final float HSLOPE_TO_BREAK_SNAP = .2f; |
| private static final float VSLOPE_TO_START_SNAP = 1.25f; |
| private static final float VSLOPE_TO_BREAK_SNAP = .95f; |
| /* |
| * These values are used to influence the average angle when entering |
| * snap mode. If is is the first movement entering snap, we set the average |
| * to the appropriate ideal. If the user is entering into snap after the |
| * first movement, then we average the average angle with these values. |
| */ |
| private static final float ANGLE_VERT = 2f; |
| private static final float ANGLE_HORIZ = 0f; |
| |
| private boolean hitFocusedPlugin(int contentX, int contentY) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "nativeFocusIsPlugin()=" + nativeFocusIsPlugin()); |
| Rect r = nativeFocusNodeBounds(); |
| Log.v(LOGTAG, "nativeFocusNodeBounds()=(" + r.left + ", " + r.top |
| + ", " + r.right + ", " + r.bottom + ")"); |
| } |
| return nativeFocusIsPlugin() |
| && nativeFocusNodeBounds().contains(contentX, contentY); |
| } |
| |
| private boolean shouldForwardTouchEvent() { |
| if (mFullScreenHolder != null) return true; |
| if (mBlockWebkitViewMessages) return false; |
| return mForwardTouchEvents |
| && !mSelectingText |
| && mPreventDefault != PREVENT_DEFAULT_IGNORE |
| && mPreventDefault != PREVENT_DEFAULT_NO; |
| } |
| |
| private boolean inFullScreenMode() { |
| return mFullScreenHolder != null; |
| } |
| |
| private void dismissFullScreenMode() { |
| if (inFullScreenMode()) { |
| mFullScreenHolder.hide(); |
| mFullScreenHolder = null; |
| } |
| } |
| |
| void onPinchToZoomAnimationStart() { |
| // cancel the single touch handling |
| cancelTouch(); |
| onZoomAnimationStart(); |
| } |
| |
| void onPinchToZoomAnimationEnd(ScaleGestureDetector detector) { |
| onZoomAnimationEnd(); |
| // start a drag, TOUCH_PINCH_DRAG, can't use TOUCH_INIT_MODE as |
| // it may trigger the unwanted click, can't use TOUCH_DRAG_MODE |
| // as it may trigger the unwanted fling. |
| mTouchMode = TOUCH_PINCH_DRAG; |
| mConfirmMove = true; |
| startTouch(detector.getFocusX(), detector.getFocusY(), mLastTouchTime); |
| } |
| |
| // See if there is a layer at x, y and switch to TOUCH_DRAG_LAYER_MODE if a |
| // layer is found. |
| private void startScrollingLayer(float x, float y) { |
| int contentX = viewToContentX((int) x + mScrollX); |
| int contentY = viewToContentY((int) y + mScrollY); |
| mScrollingLayer = nativeScrollableLayer(contentX, contentY, |
| mScrollingLayerRect, mScrollingLayerBounds); |
| if (mScrollingLayer != 0) { |
| mTouchMode = TOUCH_DRAG_LAYER_MODE; |
| } |
| } |
| |
| // 1/(density * density) used to compute the distance between points. |
| // Computed in init(). |
| private float DRAG_LAYER_INVERSE_DENSITY_SQUARED; |
| |
| // The distance between two points reported in onTouchEvent scaled by the |
| // density of the screen. |
| private static final int DRAG_LAYER_FINGER_DISTANCE = 20000; |
| |
| @Override |
| public boolean onHoverEvent(MotionEvent event) { |
| if (mNativeClass == 0) { |
| return false; |
| } |
| WebViewCore.CursorData data = cursorDataNoPosition(); |
| data.mX = viewToContentX((int) event.getX()); |
| data.mY = viewToContentY((int) event.getY()); |
| mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, data); |
| return true; |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent ev) { |
| if (mNativeClass == 0 || (!isClickable() && !isLongClickable())) { |
| return false; |
| } |
| |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, ev + " at " + ev.getEventTime() |
| + " mTouchMode=" + mTouchMode |
| + " numPointers=" + ev.getPointerCount()); |
| } |
| |
| // If WebKit wasn't interested in this multitouch gesture, enqueue |
| // the event for handling directly rather than making the round trip |
| // to WebKit and back. |
| if (ev.getPointerCount() > 1 && mPreventDefault != PREVENT_DEFAULT_NO) { |
| passMultiTouchToWebKit(ev, mTouchEventQueue.nextTouchSequence()); |
| } else { |
| mTouchEventQueue.enqueueTouchEvent(ev); |
| } |
| |
| // Since all events are handled asynchronously, we always want the gesture stream. |
| return true; |
| } |
| |
| private float calculateDragAngle(int dx, int dy) { |
| dx = Math.abs(dx); |
| dy = Math.abs(dy); |
| return (float) Math.atan2(dy, dx); |
| } |
| |
| /* |
| * Common code for single touch and multi-touch. |
| * (x, y) denotes current focus point, which is the touch point for single touch |
| * and the middle point for multi-touch. |
| */ |
| private boolean handleTouchEventCommon(MotionEvent ev, int action, int x, int y) { |
| long eventTime = ev.getEventTime(); |
| |
| // Due to the touch screen edge effect, a touch closer to the edge |
| // always snapped to the edge. As getViewWidth() can be different from |
| // getWidth() due to the scrollbar, adjusting the point to match |
| // getViewWidth(). Same applied to the height. |
| x = Math.min(x, getViewWidth() - 1); |
| y = Math.min(y, getViewHeightWithTitle() - 1); |
| |
| int deltaX = mLastTouchX - x; |
| int deltaY = mLastTouchY - y; |
| int contentX = viewToContentX(x + mScrollX); |
| int contentY = viewToContentY(y + mScrollY); |
| |
| switch (action) { |
| case MotionEvent.ACTION_DOWN: { |
| mPreventDefault = PREVENT_DEFAULT_NO; |
| mConfirmMove = false; |
| mInitialHitTestResult = null; |
| if (!mScroller.isFinished()) { |
| // stop the current scroll animation, but if this is |
| // the start of a fling, allow it to add to the current |
| // fling's velocity |
| mScroller.abortAnimation(); |
| mTouchMode = TOUCH_DRAG_START_MODE; |
| mConfirmMove = true; |
| mPrivateHandler.removeMessages(RESUME_WEBCORE_PRIORITY); |
| } else if (mPrivateHandler.hasMessages(RELEASE_SINGLE_TAP)) { |
| mPrivateHandler.removeMessages(RELEASE_SINGLE_TAP); |
| if (getSettings().supportTouchOnly()) { |
| removeTouchHighlight(true); |
| } |
| if (deltaX * deltaX + deltaY * deltaY < mDoubleTapSlopSquare) { |
| mTouchMode = TOUCH_DOUBLE_TAP_MODE; |
| } else { |
| // commit the short press action for the previous tap |
| doShortPress(); |
| mTouchMode = TOUCH_INIT_MODE; |
| mDeferTouchProcess = !mBlockWebkitViewMessages |
| && (!inFullScreenMode() && mForwardTouchEvents) |
| ? hitFocusedPlugin(contentX, contentY) |
| : false; |
| } |
| } else { // the normal case |
| mTouchMode = TOUCH_INIT_MODE; |
| mDeferTouchProcess = !mBlockWebkitViewMessages |
| && (!inFullScreenMode() && mForwardTouchEvents) |
| ? hitFocusedPlugin(contentX, contentY) |
| : false; |
| if (!mBlockWebkitViewMessages) { |
| mWebViewCore.sendMessage( |
| EventHub.UPDATE_FRAME_CACHE_IF_LOADING); |
| } |
| if (getSettings().supportTouchOnly()) { |
| TouchHighlightData data = new TouchHighlightData(); |
| data.mX = contentX; |
| data.mY = contentY; |
| data.mSlop = viewToContentDimension(mNavSlop); |
| if (!mBlockWebkitViewMessages) { |
| mWebViewCore.sendMessageDelayed( |
| EventHub.GET_TOUCH_HIGHLIGHT_RECTS, data, |
| ViewConfiguration.getTapTimeout()); |
| } |
| if (DEBUG_TOUCH_HIGHLIGHT) { |
| if (getSettings().getNavDump()) { |
| mTouchHighlightX = (int) x + mScrollX; |
| mTouchHighlightY = (int) y + mScrollY; |
| mPrivateHandler.postDelayed(new Runnable() { |
| public void run() { |
| mTouchHighlightX = mTouchHighlightY = 0; |
| invalidate(); |
| } |
| }, TOUCH_HIGHLIGHT_ELAPSE_TIME); |
| } |
| } |
| } |
| if (mLogEvent && eventTime - mLastTouchUpTime < 1000) { |
| EventLog.writeEvent(EventLogTags.BROWSER_DOUBLE_TAP_DURATION, |
| (eventTime - mLastTouchUpTime), eventTime); |
| } |
| if (mSelectingText) { |
| mDrawSelectionPointer = false; |
| mSelectionStarted = nativeStartSelection(contentX, contentY); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "select=" + contentX + "," + contentY); |
| } |
| invalidate(); |
| } |
| } |
| // Trigger the link |
| if (!mSelectingText && (mTouchMode == TOUCH_INIT_MODE |
| || mTouchMode == TOUCH_DOUBLE_TAP_MODE)) { |
| mPrivateHandler.sendEmptyMessageDelayed( |
| SWITCH_TO_SHORTPRESS, TAP_TIMEOUT); |
| mPrivateHandler.sendEmptyMessageDelayed( |
| SWITCH_TO_LONGPRESS, LONG_PRESS_TIMEOUT); |
| if (inFullScreenMode() || mDeferTouchProcess) { |
| mPreventDefault = PREVENT_DEFAULT_YES; |
| } else if (!mBlockWebkitViewMessages && mForwardTouchEvents) { |
| mPreventDefault = PREVENT_DEFAULT_MAYBE_YES; |
| } else { |
| mPreventDefault = PREVENT_DEFAULT_NO; |
| } |
| // pass the touch events from UI thread to WebCore thread |
| if (shouldForwardTouchEvent()) { |
| TouchEventData ted = new TouchEventData(); |
| ted.mAction = action; |
| ted.mIds = new int[1]; |
| ted.mIds[0] = ev.getPointerId(0); |
| ted.mPoints = new Point[1]; |
| ted.mPoints[0] = new Point(contentX, contentY); |
| ted.mPointsInView = new Point[1]; |
| ted.mPointsInView[0] = new Point(x, y); |
| ted.mMetaState = ev.getMetaState(); |
| ted.mReprocess = mDeferTouchProcess; |
| ted.mNativeLayer = nativeScrollableLayer( |
| contentX, contentY, ted.mNativeLayerRect, null); |
| ted.mSequence = mTouchEventQueue.nextTouchSequence(); |
| mTouchEventQueue.preQueueTouchEventData(ted); |
| mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); |
| if (mDeferTouchProcess) { |
| // still needs to set them for compute deltaX/Y |
| mLastTouchX = x; |
| mLastTouchY = y; |
| break; |
| } |
| if (!inFullScreenMode()) { |
| mPrivateHandler.removeMessages(PREVENT_DEFAULT_TIMEOUT); |
| mPrivateHandler.sendMessageDelayed(mPrivateHandler |
| .obtainMessage(PREVENT_DEFAULT_TIMEOUT, |
| action, 0), TAP_TIMEOUT); |
| } |
| } |
| } |
| startTouch(x, y, eventTime); |
| break; |
| } |
| case MotionEvent.ACTION_MOVE: { |
| boolean firstMove = false; |
| if (!mConfirmMove && (deltaX * deltaX + deltaY * deltaY) |
| >= mTouchSlopSquare) { |
| mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| mConfirmMove = true; |
| firstMove = true; |
| if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) { |
| mTouchMode = TOUCH_INIT_MODE; |
| } |
| if (getSettings().supportTouchOnly()) { |
| removeTouchHighlight(true); |
| } |
| } |
| // pass the touch events from UI thread to WebCore thread |
| if (shouldForwardTouchEvent() && mConfirmMove && (firstMove |
| || eventTime - mLastSentTouchTime > mCurrentTouchInterval)) { |
| TouchEventData ted = new TouchEventData(); |
| ted.mAction = action; |
| ted.mIds = new int[1]; |
| ted.mIds[0] = ev.getPointerId(0); |
| ted.mPoints = new Point[1]; |
| ted.mPoints[0] = new Point(contentX, contentY); |
| ted.mPointsInView = new Point[1]; |
| ted.mPointsInView[0] = new Point(x, y); |
| ted.mMetaState = ev.getMetaState(); |
| ted.mReprocess = mDeferTouchProcess; |
| ted.mNativeLayer = mScrollingLayer; |
| ted.mNativeLayerRect.set(mScrollingLayerRect); |
| ted.mSequence = mTouchEventQueue.nextTouchSequence(); |
| mTouchEventQueue.preQueueTouchEventData(ted); |
| mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); |
| mLastSentTouchTime = eventTime; |
| if (mDeferTouchProcess) { |
| break; |
| } |
| if (firstMove && !inFullScreenMode()) { |
| mPrivateHandler.sendMessageDelayed(mPrivateHandler |
| .obtainMessage(PREVENT_DEFAULT_TIMEOUT, |
| action, 0), TAP_TIMEOUT); |
| } |
| } |
| if (mTouchMode == TOUCH_DONE_MODE |
| || mPreventDefault == PREVENT_DEFAULT_YES) { |
| // no dragging during scroll zoom animation, or when prevent |
| // default is yes |
| break; |
| } |
| if (mVelocityTracker == null) { |
| Log.e(LOGTAG, "Got null mVelocityTracker when " |
| + "mPreventDefault = " + mPreventDefault |
| + " mDeferTouchProcess = " + mDeferTouchProcess |
| + " mTouchMode = " + mTouchMode); |
| } else { |
| mVelocityTracker.addMovement(ev); |
| } |
| if (mSelectingText && mSelectionStarted) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "extend=" + contentX + "," + contentY); |
| } |
| ViewParent parent = getParent(); |
| if (parent != null) { |
| parent.requestDisallowInterceptTouchEvent(true); |
| } |
| mAutoScrollX = x <= mMinAutoScrollX ? -SELECT_SCROLL |
| : x >= mMaxAutoScrollX ? SELECT_SCROLL : 0; |
| mAutoScrollY = y <= mMinAutoScrollY ? -SELECT_SCROLL |
| : y >= mMaxAutoScrollY ? SELECT_SCROLL : 0; |
| if ((mAutoScrollX != 0 || mAutoScrollY != 0) |
| && !mSentAutoScrollMessage) { |
| mSentAutoScrollMessage = true; |
| mPrivateHandler.sendEmptyMessageDelayed( |
| SCROLL_SELECT_TEXT, SELECT_SCROLL_INTERVAL); |
| } |
| if (deltaX != 0 || deltaY != 0) { |
| nativeExtendSelection(contentX, contentY); |
| invalidate(); |
| } |
| break; |
| } |
| |
| if (mTouchMode != TOUCH_DRAG_MODE && |
| mTouchMode != TOUCH_DRAG_LAYER_MODE) { |
| |
| if (!mConfirmMove) { |
| break; |
| } |
| |
| if (mPreventDefault == PREVENT_DEFAULT_MAYBE_YES |
| || mPreventDefault == PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN) { |
| // track mLastTouchTime as we may need to do fling at |
| // ACTION_UP |
| mLastTouchTime = eventTime; |
| break; |
| } |
| |
| // Only lock dragging to one axis if we don't have a scale in progress. |
| // Scaling implies free-roaming movement. Note this is only ever a question |
| // if mZoomManager.supportsPanDuringZoom() is true. |
| final ScaleGestureDetector detector = |
| mZoomManager.getMultiTouchGestureDetector(); |
| mAverageAngle = calculateDragAngle(deltaX, deltaY); |
| if (detector == null || !detector.isInProgress()) { |
| // if it starts nearly horizontal or vertical, enforce it |
| if (mAverageAngle < HSLOPE_TO_START_SNAP) { |
| mSnapScrollMode = SNAP_X; |
| mSnapPositive = deltaX > 0; |
| mAverageAngle = ANGLE_HORIZ; |
| } else if (mAverageAngle > VSLOPE_TO_START_SNAP) { |
| mSnapScrollMode = SNAP_Y; |
| mSnapPositive = deltaY > 0; |
| mAverageAngle = ANGLE_VERT; |
| } |
| } |
| |
| mTouchMode = TOUCH_DRAG_MODE; |
| mLastTouchX = x; |
| mLastTouchY = y; |
| deltaX = 0; |
| deltaY = 0; |
| |
| startScrollingLayer(x, y); |
| startDrag(); |
| } |
| |
| // do pan |
| boolean done = false; |
| boolean keepScrollBarsVisible = false; |
| if (deltaX == 0 && deltaY == 0) { |
| keepScrollBarsVisible = done = true; |
| } else { |
| mAverageAngle = (mAverageAngle + |
| calculateDragAngle(deltaX, deltaY)) / 2; |
| if (mSnapScrollMode != SNAP_NONE) { |
| if (mSnapScrollMode == SNAP_Y) { |
| // radical change means getting out of snap mode |
| if (mAverageAngle < VSLOPE_TO_BREAK_SNAP) { |
| mSnapScrollMode = SNAP_NONE; |
| } |
| } |
| if (mSnapScrollMode == SNAP_X) { |
| // radical change means getting out of snap mode |
| if (mAverageAngle > HSLOPE_TO_BREAK_SNAP) { |
| mSnapScrollMode = SNAP_NONE; |
| } |
| } |
| } else { |
| if (mAverageAngle < HSLOPE_TO_START_SNAP) { |
| mSnapScrollMode = SNAP_X; |
| mSnapPositive = deltaX > 0; |
| mAverageAngle = (mAverageAngle + ANGLE_HORIZ) / 2; |
| } else if (mAverageAngle > VSLOPE_TO_START_SNAP) { |
| mSnapScrollMode = SNAP_Y; |
| mSnapPositive = deltaY > 0; |
| mAverageAngle = (mAverageAngle + ANGLE_VERT) / 2; |
| } |
| } |
| if (mSnapScrollMode != SNAP_NONE) { |
| if ((mSnapScrollMode & SNAP_X) == SNAP_X) { |
| deltaY = 0; |
| } else { |
| deltaX = 0; |
| } |
| } |
| mLastTouchX = x; |
| mLastTouchY = y; |
| if ((deltaX | deltaY) != 0) { |
| mHeldMotionless = MOTIONLESS_FALSE; |
| } |
| mLastTouchTime = eventTime; |
| } |
| |
| doDrag(deltaX, deltaY); |
| |
| // Turn off scrollbars when dragging a layer. |
| if (keepScrollBarsVisible && |
| mTouchMode != TOUCH_DRAG_LAYER_MODE) { |
| if (mHeldMotionless != MOTIONLESS_TRUE) { |
| mHeldMotionless = MOTIONLESS_TRUE; |
| invalidate(); |
| } |
| // keep the scrollbar on the screen even there is no scroll |
| awakenScrollBars(ViewConfiguration.getScrollDefaultDelay(), |
| false); |
| // return false to indicate that we can't pan out of the |
| // view space |
| return !done; |
| } |
| break; |
| } |
| case MotionEvent.ACTION_UP: { |
| if (!isFocused()) requestFocus(); |
| // pass the touch events from UI thread to WebCore thread |
| if (shouldForwardTouchEvent()) { |
| TouchEventData ted = new TouchEventData(); |
| ted.mIds = new int[1]; |
| ted.mIds[0] = ev.getPointerId(0); |
| ted.mAction = action; |
| ted.mPoints = new Point[1]; |
| ted.mPoints[0] = new Point(contentX, contentY); |
| ted.mPointsInView = new Point[1]; |
| ted.mPointsInView[0] = new Point(x, y); |
| ted.mMetaState = ev.getMetaState(); |
| ted.mReprocess = mDeferTouchProcess; |
| ted.mNativeLayer = mScrollingLayer; |
| ted.mNativeLayerRect.set(mScrollingLayerRect); |
| ted.mSequence = mTouchEventQueue.nextTouchSequence(); |
| mTouchEventQueue.preQueueTouchEventData(ted); |
| mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); |
| } |
| mLastTouchUpTime = eventTime; |
| if (mSentAutoScrollMessage) { |
| mAutoScrollX = mAutoScrollY = 0; |
| } |
| switch (mTouchMode) { |
| case TOUCH_DOUBLE_TAP_MODE: // double tap |
| mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| if (inFullScreenMode() || mDeferTouchProcess) { |
| TouchEventData ted = new TouchEventData(); |
| ted.mIds = new int[1]; |
| ted.mIds[0] = ev.getPointerId(0); |
| ted.mAction = WebViewCore.ACTION_DOUBLETAP; |
| ted.mPoints = new Point[1]; |
| ted.mPoints[0] = new Point(contentX, contentY); |
| ted.mPointsInView = new Point[1]; |
| ted.mPointsInView[0] = new Point(x, y); |
| ted.mMetaState = ev.getMetaState(); |
| ted.mReprocess = mDeferTouchProcess; |
| ted.mNativeLayer = nativeScrollableLayer( |
| contentX, contentY, |
| ted.mNativeLayerRect, null); |
| ted.mSequence = mTouchEventQueue.nextTouchSequence(); |
| mTouchEventQueue.preQueueTouchEventData(ted); |
| mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); |
| } else if (mPreventDefault != PREVENT_DEFAULT_YES){ |
| mZoomManager.handleDoubleTap(mLastTouchX, mLastTouchY); |
| mTouchMode = TOUCH_DONE_MODE; |
| } |
| break; |
| case TOUCH_INIT_MODE: // tap |
| case TOUCH_SHORTPRESS_START_MODE: |
| case TOUCH_SHORTPRESS_MODE: |
| mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| if (mConfirmMove) { |
| Log.w(LOGTAG, "Miss a drag as we are waiting for" + |
| " WebCore's response for touch down."); |
| if (mPreventDefault != PREVENT_DEFAULT_YES |
| && (computeMaxScrollX() > 0 |
| || computeMaxScrollY() > 0)) { |
| // If the user has performed a very quick touch |
| // sequence it is possible that we may get here |
| // before WebCore has had a chance to process the events. |
| // In this case, any call to preventDefault in the |
| // JS touch handler will not have been executed yet. |
| // Hence we will see both the UI (now) and WebCore |
| // (when context switches) handling the event, |
| // regardless of whether the web developer actually |
| // doeses preventDefault in their touch handler. This |
| // is the nature of our asynchronous touch model. |
| |
| // we will not rewrite drag code here, but we |
| // will try fling if it applies. |
| WebViewCore.reducePriority(); |
| // to get better performance, pause updating the |
| // picture |
| WebViewCore.pauseUpdatePicture(mWebViewCore); |
| // fall through to TOUCH_DRAG_MODE |
| } else { |
| // WebKit may consume the touch event and modify |
| // DOM. drawContentPicture() will be called with |
| // animateSroll as true for better performance. |
| // Force redraw in high-quality. |
| invalidate(); |
| break; |
| } |
| } else { |
| if (mSelectingText) { |
| // tapping on selection or controls does nothing |
| if (!nativeHitSelection(contentX, contentY)) { |
| selectionDone(); |
| } |
| break; |
| } |
| // only trigger double tap if the WebView is |
| // scalable |
| if (mTouchMode == TOUCH_INIT_MODE |
| && (canZoomIn() || canZoomOut())) { |
| mPrivateHandler.sendEmptyMessageDelayed( |
| RELEASE_SINGLE_TAP, ViewConfiguration |
| .getDoubleTapTimeout()); |
| } else { |
| doShortPress(); |
| } |
| break; |
| } |
| case TOUCH_DRAG_MODE: |
| case TOUCH_DRAG_LAYER_MODE: |
| mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); |
| mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); |
| // if the user waits a while w/o moving before the |
| // up, we don't want to do a fling |
| if (eventTime - mLastTouchTime <= MIN_FLING_TIME) { |
| if (mVelocityTracker == null) { |
| Log.e(LOGTAG, "Got null mVelocityTracker when " |
| + "mPreventDefault = " |
| + mPreventDefault |
| + " mDeferTouchProcess = " |
| + mDeferTouchProcess); |
| } else { |
| mVelocityTracker.addMovement(ev); |
| } |
| // set to MOTIONLESS_IGNORE so that it won't keep |
| // removing and sending message in |
| // drawCoreAndCursorRing() |
| mHeldMotionless = MOTIONLESS_IGNORE; |
| doFling(); |
| break; |
| } else { |
| if (mScroller.springBack(mScrollX, mScrollY, 0, |
| computeMaxScrollX(), 0, |
| computeMaxScrollY())) { |
| invalidate(); |
| } |
| } |
| // redraw in high-quality, as we're done dragging |
| mHeldMotionless = MOTIONLESS_TRUE; |
| invalidate(); |
| // fall through |
| case TOUCH_DRAG_START_MODE: |
| // TOUCH_DRAG_START_MODE should not happen for the real |
| // device as we almost certain will get a MOVE. But this |
| // is possible on emulator. |
| mLastVelocity = 0; |
| WebViewCore.resumePriority(); |
| if (!mSelectingText) { |
| WebViewCore.resumeUpdatePicture(mWebViewCore); |
| } |
| break; |
| } |
| stopTouch(); |
| break; |
| } |
| case MotionEvent.ACTION_CANCEL: { |
| if (mTouchMode == TOUCH_DRAG_MODE) { |
| mScroller.springBack(mScrollX, mScrollY, 0, |
| computeMaxScrollX(), 0, computeMaxScrollY()); |
| invalidate(); |
| } |
| cancelWebCoreTouchEvent(contentX, contentY, false); |
| cancelTouch(); |
| break; |
| } |
| } |
| return true; |
| } |
| |
| private void passMultiTouchToWebKit(MotionEvent ev, long sequence) { |
| TouchEventData ted = new TouchEventData(); |
| ted.mAction = ev.getActionMasked(); |
| final int count = ev.getPointerCount(); |
| ted.mIds = new int[count]; |
| ted.mPoints = new Point[count]; |
| ted.mPointsInView = new Point[count]; |
| for (int c = 0; c < count; c++) { |
| ted.mIds[c] = ev.getPointerId(c); |
| int x = viewToContentX((int) ev.getX(c) + mScrollX); |
| int y = viewToContentY((int) ev.getY(c) + mScrollY); |
| ted.mPoints[c] = new Point(x, y); |
| ted.mPointsInView[c] = new Point((int) ev.getX(c), (int) ev.getY(c)); |
| } |
| if (ted.mAction == MotionEvent.ACTION_POINTER_DOWN |
| || ted.mAction == MotionEvent.ACTION_POINTER_UP) { |
| ted.mActionIndex = ev.getActionIndex(); |
| } |
| ted.mMetaState = ev.getMetaState(); |
| ted.mReprocess = true; |
| ted.mMotionEvent = MotionEvent.obtain(ev); |
| ted.mSequence = sequence; |
| mTouchEventQueue.preQueueTouchEventData(ted); |
| mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); |
| cancelLongPress(); |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| } |
| |
| void handleMultiTouchInWebView(MotionEvent ev) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "multi-touch: " + ev + " at " + ev.getEventTime() |
| + " mTouchMode=" + mTouchMode |
| + " numPointers=" + ev.getPointerCount() |
| + " scrolloffset=(" + mScrollX + "," + mScrollY + ")"); |
| } |
| |
| final ScaleGestureDetector detector = |
| mZoomManager.getMultiTouchGestureDetector(); |
| |
| // A few apps use WebView but don't instantiate gesture detector. |
| // We don't need to support multi touch for them. |
| if (detector == null) return; |
| |
| float x = ev.getX(); |
| float y = ev.getY(); |
| |
| if (mPreventDefault != PREVENT_DEFAULT_YES) { |
| detector.onTouchEvent(ev); |
| |
| if (detector.isInProgress()) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "detector is in progress"); |
| } |
| mLastTouchTime = ev.getEventTime(); |
| x = detector.getFocusX(); |
| y = detector.getFocusY(); |
| |
| cancelLongPress(); |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| if (!mZoomManager.supportsPanDuringZoom()) { |
| return; |
| } |
| mTouchMode = TOUCH_DRAG_MODE; |
| if (mVelocityTracker == null) { |
| mVelocityTracker = VelocityTracker.obtain(); |
| } |
| } |
| } |
| |
| int action = ev.getActionMasked(); |
| if (action == MotionEvent.ACTION_POINTER_DOWN) { |
| cancelTouch(); |
| action = MotionEvent.ACTION_DOWN; |
| } else if (action == MotionEvent.ACTION_POINTER_UP && ev.getPointerCount() == 2) { |
| // set mLastTouchX/Y to the remaining point |
| mLastTouchX = Math.round(x); |
| mLastTouchY = Math.round(y); |
| } else if (action == MotionEvent.ACTION_MOVE) { |
| // negative x or y indicate it is on the edge, skip it. |
| if (x < 0 || y < 0) { |
| return; |
| } |
| } |
| |
| handleTouchEventCommon(ev, action, Math.round(x), Math.round(y)); |
| } |
| |
| private void cancelWebCoreTouchEvent(int x, int y, boolean removeEvents) { |
| if (shouldForwardTouchEvent()) { |
| if (removeEvents) { |
| mWebViewCore.removeMessages(EventHub.TOUCH_EVENT); |
| } |
| TouchEventData ted = new TouchEventData(); |
| ted.mIds = new int[1]; |
| ted.mIds[0] = 0; |
| ted.mPoints = new Point[1]; |
| ted.mPoints[0] = new Point(x, y); |
| ted.mPointsInView = new Point[1]; |
| int viewX = contentToViewX(x) - mScrollX; |
| int viewY = contentToViewY(y) - mScrollY; |
| ted.mPointsInView[0] = new Point(viewX, viewY); |
| ted.mAction = MotionEvent.ACTION_CANCEL; |
| ted.mNativeLayer = nativeScrollableLayer( |
| x, y, ted.mNativeLayerRect, null); |
| ted.mSequence = mTouchEventQueue.nextTouchSequence(); |
| mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); |
| mPreventDefault = PREVENT_DEFAULT_IGNORE; |
| |
| if (removeEvents) { |
| // Mark this after sending the message above; we should |
| // be willing to ignore the cancel event that we just sent. |
| mTouchEventQueue.ignoreCurrentlyMissingEvents(); |
| } |
| } |
| } |
| |
| private void startTouch(float x, float y, long eventTime) { |
| // Remember where the motion event started |
| mStartTouchX = mLastTouchX = Math.round(x); |
| mStartTouchY = mLastTouchY = Math.round(y); |
| mLastTouchTime = eventTime; |
| mVelocityTracker = VelocityTracker.obtain(); |
| mSnapScrollMode = SNAP_NONE; |
| } |
| |
| private void startDrag() { |
| WebViewCore.reducePriority(); |
| // to get better performance, pause updating the picture |
| WebViewCore.pauseUpdatePicture(mWebViewCore); |
| if (!mDragFromTextInput) { |
| nativeHideCursor(); |
| } |
| |
| if (mHorizontalScrollBarMode != SCROLLBAR_ALWAYSOFF |
| || mVerticalScrollBarMode != SCROLLBAR_ALWAYSOFF) { |
| mZoomManager.invokeZoomPicker(); |
| } |
| } |
| |
| private void doDrag(int deltaX, int deltaY) { |
| if ((deltaX | deltaY) != 0) { |
| int oldX = mScrollX; |
| int oldY = mScrollY; |
| int rangeX = computeMaxScrollX(); |
| int rangeY = computeMaxScrollY(); |
| int overscrollDistance = mOverscrollDistance; |
| |
| // Check for the original scrolling layer in case we change |
| // directions. mTouchMode might be TOUCH_DRAG_MODE if we have |
| // reached the edge of a layer but mScrollingLayer will be non-zero |
| // if we initiated the drag on a layer. |
| if (mScrollingLayer != 0) { |
| final int contentX = viewToContentDimension(deltaX); |
| final int contentY = viewToContentDimension(deltaY); |
| |
| // Check the scrolling bounds to see if we will actually do any |
| // scrolling. The rectangle is in document coordinates. |
| final int maxX = mScrollingLayerRect.right; |
| final int maxY = mScrollingLayerRect.bottom; |
| final int resultX = Math.max(0, |
| Math.min(mScrollingLayerRect.left + contentX, maxX)); |
| final int resultY = Math.max(0, |
| Math.min(mScrollingLayerRect.top + contentY, maxY)); |
| |
| if (resultX != mScrollingLayerRect.left || |
| resultY != mScrollingLayerRect.top) { |
| // In case we switched to dragging the page. |
| mTouchMode = TOUCH_DRAG_LAYER_MODE; |
| deltaX = contentX; |
| deltaY = contentY; |
| oldX = mScrollingLayerRect.left; |
| oldY = mScrollingLayerRect.top; |
| rangeX = maxX; |
| rangeY = maxY; |
| } else { |
| // Scroll the main page if we are not going to scroll the |
| // layer. This does not reset mScrollingLayer in case the |
| // user changes directions and the layer can scroll the |
| // other way. |
| mTouchMode = TOUCH_DRAG_MODE; |
| } |
| } |
| |
| if (mOverScrollGlow != null) { |
| mOverScrollGlow.setOverScrollDeltas(deltaX, deltaY); |
| } |
| |
| overScrollBy(deltaX, deltaY, oldX, oldY, |
| rangeX, rangeY, |
| mOverscrollDistance, mOverscrollDistance, true); |
| if (mOverScrollGlow != null && mOverScrollGlow.isAnimating()) { |
| invalidate(); |
| } |
| } |
| mZoomManager.keepZoomPickerVisible(); |
| } |
| |
| private void stopTouch() { |
| // we also use mVelocityTracker == null to tell us that we are |
| // not "moving around", so we can take the slower/prettier |
| // mode in the drawing code |
| if (mVelocityTracker != null) { |
| mVelocityTracker.recycle(); |
| mVelocityTracker = null; |
| } |
| |
| // Release any pulled glows |
| if (mOverScrollGlow != null) { |
| mOverScrollGlow.releaseAll(); |
| } |
| } |
| |
| private void cancelTouch() { |
| // we also use mVelocityTracker == null to tell us that we are |
| // not "moving around", so we can take the slower/prettier |
| // mode in the drawing code |
| if (mVelocityTracker != null) { |
| mVelocityTracker.recycle(); |
| mVelocityTracker = null; |
| } |
| |
| if ((mTouchMode == TOUCH_DRAG_MODE |
| || mTouchMode == TOUCH_DRAG_LAYER_MODE) && !mSelectingText) { |
| WebViewCore.resumePriority(); |
| WebViewCore.resumeUpdatePicture(mWebViewCore); |
| } |
| mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); |
| mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); |
| if (getSettings().supportTouchOnly()) { |
| removeTouchHighlight(true); |
| } |
| mHeldMotionless = MOTIONLESS_TRUE; |
| mTouchMode = TOUCH_DONE_MODE; |
| nativeHideCursor(); |
| } |
| |
| @Override |
| public boolean onGenericMotionEvent(MotionEvent event) { |
| if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { |
| switch (event.getAction()) { |
| case MotionEvent.ACTION_SCROLL: { |
| final float vscroll; |
| final float hscroll; |
| if ((event.getMetaState() & KeyEvent.META_SHIFT_ON) != 0) { |
| vscroll = 0; |
| hscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); |
| } else { |
| vscroll = -event.getAxisValue(MotionEvent.AXIS_VSCROLL); |
| hscroll = event.getAxisValue(MotionEvent.AXIS_HSCROLL); |
| } |
| if (hscroll != 0 || vscroll != 0) { |
| final int vdelta = (int) (vscroll * getVerticalScrollFactor()); |
| final int hdelta = (int) (hscroll * getHorizontalScrollFactor()); |
| if (pinScrollBy(hdelta, vdelta, false, 0)) { |
| return true; |
| } |
| } |
| } |
| } |
| } |
| return super.onGenericMotionEvent(event); |
| } |
| |
| private long mTrackballFirstTime = 0; |
| private long mTrackballLastTime = 0; |
| private float mTrackballRemainsX = 0.0f; |
| private float mTrackballRemainsY = 0.0f; |
| private int mTrackballXMove = 0; |
| private int mTrackballYMove = 0; |
| private boolean mSelectingText = false; |
| private boolean mSelectionStarted = false; |
| private boolean mExtendSelection = false; |
| private boolean mDrawSelectionPointer = false; |
| private static final int TRACKBALL_KEY_TIMEOUT = 1000; |
| private static final int TRACKBALL_TIMEOUT = 200; |
| private static final int TRACKBALL_WAIT = 100; |
| private static final int TRACKBALL_SCALE = 400; |
| private static final int TRACKBALL_SCROLL_COUNT = 5; |
| private static final int TRACKBALL_MOVE_COUNT = 10; |
| private static final int TRACKBALL_MULTIPLIER = 3; |
| private static final int SELECT_CURSOR_OFFSET = 16; |
| private static final int SELECT_SCROLL = 5; |
| private int mSelectX = 0; |
| private int mSelectY = 0; |
| private boolean mFocusSizeChanged = false; |
| private boolean mTrackballDown = false; |
| private long mTrackballUpTime = 0; |
| private long mLastCursorTime = 0; |
| private Rect mLastCursorBounds; |
| |
| // Set by default; BrowserActivity clears to interpret trackball data |
| // directly for movement. Currently, the framework only passes |
| // arrow key events, not trackball events, from one child to the next |
| private boolean mMapTrackballToArrowKeys = true; |
| |
| private DrawData mDelaySetPicture; |
| private DrawData mLoadedPicture; |
| |
| public void setMapTrackballToArrowKeys(boolean setMap) { |
| checkThread(); |
| mMapTrackballToArrowKeys = setMap; |
| } |
| |
| void resetTrackballTime() { |
| mTrackballLastTime = 0; |
| } |
| |
| @Override |
| public boolean onTrackballEvent(MotionEvent ev) { |
| long time = ev.getEventTime(); |
| if ((ev.getMetaState() & KeyEvent.META_ALT_ON) != 0) { |
| if (ev.getY() > 0) pageDown(true); |
| if (ev.getY() < 0) pageUp(true); |
| return true; |
| } |
| if (ev.getAction() == MotionEvent.ACTION_DOWN) { |
| if (mSelectingText) { |
| return true; // discard press if copy in progress |
| } |
| mTrackballDown = true; |
| if (mNativeClass == 0) { |
| return false; |
| } |
| nativeRecordButtons(hasFocus() && hasWindowFocus(), true, true); |
| if (time - mLastCursorTime <= TRACKBALL_TIMEOUT |
| && !mLastCursorBounds.equals(nativeGetCursorRingBounds())) { |
| nativeSelectBestAt(mLastCursorBounds); |
| } |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "onTrackballEvent down ev=" + ev |
| + " time=" + time |
| + " mLastCursorTime=" + mLastCursorTime); |
| } |
| if (isInTouchMode()) requestFocusFromTouch(); |
| return false; // let common code in onKeyDown at it |
| } |
| if (ev.getAction() == MotionEvent.ACTION_UP) { |
| // LONG_PRESS_CENTER is set in common onKeyDown |
| mPrivateHandler.removeMessages(LONG_PRESS_CENTER); |
| mTrackballDown = false; |
| mTrackballUpTime = time; |
| if (mSelectingText) { |
| if (mExtendSelection) { |
| copySelection(); |
| selectionDone(); |
| } else { |
| mExtendSelection = true; |
| nativeSetExtendSelection(); |
| invalidate(); // draw the i-beam instead of the arrow |
| } |
| return true; // discard press if copy in progress |
| } |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "onTrackballEvent up ev=" + ev |
| + " time=" + time |
| ); |
| } |
| return false; // let common code in onKeyUp at it |
| } |
| if ((mMapTrackballToArrowKeys && (ev.getMetaState() & KeyEvent.META_SHIFT_ON) == 0) || |
| AccessibilityManager.getInstance(mContext).isEnabled()) { |
| if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent gmail quit"); |
| return false; |
| } |
| if (mTrackballDown) { |
| if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent down quit"); |
| return true; // discard move if trackball is down |
| } |
| if (time - mTrackballUpTime < TRACKBALL_TIMEOUT) { |
| if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent up timeout quit"); |
| return true; |
| } |
| // TODO: alternatively we can do panning as touch does |
| switchOutDrawHistory(); |
| if (time - mTrackballLastTime > TRACKBALL_TIMEOUT) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "onTrackballEvent time=" |
| + time + " last=" + mTrackballLastTime); |
| } |
| mTrackballFirstTime = time; |
| mTrackballXMove = mTrackballYMove = 0; |
| } |
| mTrackballLastTime = time; |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "onTrackballEvent ev=" + ev + " time=" + time); |
| } |
| mTrackballRemainsX += ev.getX(); |
| mTrackballRemainsY += ev.getY(); |
| doTrackball(time, ev.getMetaState()); |
| return true; |
| } |
| |
| void moveSelection(float xRate, float yRate) { |
| if (mNativeClass == 0) |
| return; |
| int width = getViewWidth(); |
| int height = getViewHeight(); |
| mSelectX += xRate; |
| mSelectY += yRate; |
| int maxX = width + mScrollX; |
| int maxY = height + mScrollY; |
| mSelectX = Math.min(maxX, Math.max(mScrollX - SELECT_CURSOR_OFFSET |
| , mSelectX)); |
| mSelectY = Math.min(maxY, Math.max(mScrollY - SELECT_CURSOR_OFFSET |
| , mSelectY)); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "moveSelection" |
| + " mSelectX=" + mSelectX |
| + " mSelectY=" + mSelectY |
| + " mScrollX=" + mScrollX |
| + " mScrollY=" + mScrollY |
| + " xRate=" + xRate |
| + " yRate=" + yRate |
| ); |
| } |
| nativeMoveSelection(viewToContentX(mSelectX), viewToContentY(mSelectY)); |
| int scrollX = mSelectX < mScrollX ? -SELECT_CURSOR_OFFSET |
| : mSelectX > maxX - SELECT_CURSOR_OFFSET ? SELECT_CURSOR_OFFSET |
| : 0; |
| int scrollY = mSelectY < mScrollY ? -SELECT_CURSOR_OFFSET |
| : mSelectY > maxY - SELECT_CURSOR_OFFSET ? SELECT_CURSOR_OFFSET |
| : 0; |
| pinScrollBy(scrollX, scrollY, true, 0); |
| Rect select = new Rect(mSelectX, mSelectY, mSelectX + 1, mSelectY + 1); |
| requestRectangleOnScreen(select); |
| invalidate(); |
| } |
| |
| private int scaleTrackballX(float xRate, int width) { |
| int xMove = (int) (xRate / TRACKBALL_SCALE * width); |
| int nextXMove = xMove; |
| if (xMove > 0) { |
| if (xMove > mTrackballXMove) { |
| xMove -= mTrackballXMove; |
| } |
| } else if (xMove < mTrackballXMove) { |
| xMove -= mTrackballXMove; |
| } |
| mTrackballXMove = nextXMove; |
| return xMove; |
| } |
| |
| private int scaleTrackballY(float yRate, int height) { |
| int yMove = (int) (yRate / TRACKBALL_SCALE * height); |
| int nextYMove = yMove; |
| if (yMove > 0) { |
| if (yMove > mTrackballYMove) { |
| yMove -= mTrackballYMove; |
| } |
| } else if (yMove < mTrackballYMove) { |
| yMove -= mTrackballYMove; |
| } |
| mTrackballYMove = nextYMove; |
| return yMove; |
| } |
| |
| private int keyCodeToSoundsEffect(int keyCode) { |
| switch(keyCode) { |
| case KeyEvent.KEYCODE_DPAD_UP: |
| return SoundEffectConstants.NAVIGATION_UP; |
| case KeyEvent.KEYCODE_DPAD_RIGHT: |
| return SoundEffectConstants.NAVIGATION_RIGHT; |
| case KeyEvent.KEYCODE_DPAD_DOWN: |
| return SoundEffectConstants.NAVIGATION_DOWN; |
| case KeyEvent.KEYCODE_DPAD_LEFT: |
| return SoundEffectConstants.NAVIGATION_LEFT; |
| } |
| throw new IllegalArgumentException("keyCode must be one of " + |
| "{KEYCODE_DPAD_UP, KEYCODE_DPAD_RIGHT, KEYCODE_DPAD_DOWN, " + |
| "KEYCODE_DPAD_LEFT}."); |
| } |
| |
| private void doTrackball(long time, int metaState) { |
| int elapsed = (int) (mTrackballLastTime - mTrackballFirstTime); |
| if (elapsed == 0) { |
| elapsed = TRACKBALL_TIMEOUT; |
| } |
| float xRate = mTrackballRemainsX * 1000 / elapsed; |
| float yRate = mTrackballRemainsY * 1000 / elapsed; |
| int viewWidth = getViewWidth(); |
| int viewHeight = getViewHeight(); |
| if (mSelectingText) { |
| if (!mDrawSelectionPointer) { |
| // The last selection was made by touch, disabling drawing the |
| // selection pointer. Allow the trackball to adjust the |
| // position of the touch control. |
| mSelectX = contentToViewX(nativeSelectionX()); |
| mSelectY = contentToViewY(nativeSelectionY()); |
| mDrawSelectionPointer = mExtendSelection = true; |
| nativeSetExtendSelection(); |
| } |
| moveSelection(scaleTrackballX(xRate, viewWidth), |
| scaleTrackballY(yRate, viewHeight)); |
| mTrackballRemainsX = mTrackballRemainsY = 0; |
| return; |
| } |
| float ax = Math.abs(xRate); |
| float ay = Math.abs(yRate); |
| float maxA = Math.max(ax, ay); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "doTrackball elapsed=" + elapsed |
| + " xRate=" + xRate |
| + " yRate=" + yRate |
| + " mTrackballRemainsX=" + mTrackballRemainsX |
| + " mTrackballRemainsY=" + mTrackballRemainsY); |
| } |
| int width = mContentWidth - viewWidth; |
| int height = mContentHeight - viewHeight; |
| if (width < 0) width = 0; |
| if (height < 0) height = 0; |
| ax = Math.abs(mTrackballRemainsX * TRACKBALL_MULTIPLIER); |
| ay = Math.abs(mTrackballRemainsY * TRACKBALL_MULTIPLIER); |
| maxA = Math.max(ax, ay); |
| int count = Math.max(0, (int) maxA); |
| int oldScrollX = mScrollX; |
| int oldScrollY = mScrollY; |
| if (count > 0) { |
| int selectKeyCode = ax < ay ? mTrackballRemainsY < 0 ? |
| KeyEvent.KEYCODE_DPAD_UP : KeyEvent.KEYCODE_DPAD_DOWN : |
| mTrackballRemainsX < 0 ? KeyEvent.KEYCODE_DPAD_LEFT : |
| KeyEvent.KEYCODE_DPAD_RIGHT; |
| count = Math.min(count, TRACKBALL_MOVE_COUNT); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "doTrackball keyCode=" + selectKeyCode |
| + " count=" + count |
| + " mTrackballRemainsX=" + mTrackballRemainsX |
| + " mTrackballRemainsY=" + mTrackballRemainsY); |
| } |
| if (mNativeClass != 0 && nativePageShouldHandleShiftAndArrows()) { |
| for (int i = 0; i < count; i++) { |
| letPageHandleNavKey(selectKeyCode, time, true, metaState); |
| } |
| letPageHandleNavKey(selectKeyCode, time, false, metaState); |
| } else if (navHandledKey(selectKeyCode, count, false, time)) { |
| playSoundEffect(keyCodeToSoundsEffect(selectKeyCode)); |
| } |
| mTrackballRemainsX = mTrackballRemainsY = 0; |
| } |
| if (count >= TRACKBALL_SCROLL_COUNT) { |
| int xMove = scaleTrackballX(xRate, width); |
| int yMove = scaleTrackballY(yRate, height); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "doTrackball pinScrollBy" |
| + " count=" + count |
| + " xMove=" + xMove + " yMove=" + yMove |
| + " mScrollX-oldScrollX=" + (mScrollX-oldScrollX) |
| + " mScrollY-oldScrollY=" + (mScrollY-oldScrollY) |
| ); |
| } |
| if (Math.abs(mScrollX - oldScrollX) > Math.abs(xMove)) { |
| xMove = 0; |
| } |
| if (Math.abs(mScrollY - oldScrollY) > Math.abs(yMove)) { |
| yMove = 0; |
| } |
| if (xMove != 0 || yMove != 0) { |
| pinScrollBy(xMove, yMove, true, 0); |
| } |
| } |
| } |
| |
| /** |
| * Compute the maximum horizontal scroll position. Used by {@link OverScrollGlow}. |
| * @return Maximum horizontal scroll position within real content |
| */ |
| int computeMaxScrollX() { |
| return Math.max(computeRealHorizontalScrollRange() - getViewWidth(), 0); |
| } |
| |
| /** |
| * Compute the maximum vertical scroll position. Used by {@link OverScrollGlow}. |
| * @return Maximum vertical scroll position within real content |
| */ |
| int computeMaxScrollY() { |
| return Math.max(computeRealVerticalScrollRange() + getTitleHeight() |
| - getViewHeightWithTitle(), 0); |
| } |
| |
| boolean updateScrollCoordinates(int x, int y) { |
| int oldX = mScrollX; |
| int oldY = mScrollY; |
| mScrollX = x; |
| mScrollY = y; |
| if (oldX != mScrollX || oldY != mScrollY) { |
| onScrollChanged(mScrollX, mScrollY, oldX, oldY); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| public void flingScroll(int vx, int vy) { |
| checkThread(); |
| mScroller.fling(mScrollX, mScrollY, vx, vy, 0, computeMaxScrollX(), 0, |
| computeMaxScrollY(), mOverflingDistance, mOverflingDistance); |
| invalidate(); |
| } |
| |
| private void doFling() { |
| if (mVelocityTracker == null) { |
| return; |
| } |
| int maxX = computeMaxScrollX(); |
| int maxY = computeMaxScrollY(); |
| |
| mVelocityTracker.computeCurrentVelocity(1000, mMaximumFling); |
| int vx = (int) mVelocityTracker.getXVelocity(); |
| int vy = (int) mVelocityTracker.getYVelocity(); |
| |
| int scrollX = mScrollX; |
| int scrollY = mScrollY; |
| int overscrollDistance = mOverscrollDistance; |
| int overflingDistance = mOverflingDistance; |
| |
| // Use the layer's scroll data if applicable. |
| if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { |
| scrollX = mScrollingLayerRect.left; |
| scrollY = mScrollingLayerRect.top; |
| maxX = mScrollingLayerRect.right; |
| maxY = mScrollingLayerRect.bottom; |
| // No overscrolling for layers. |
| overscrollDistance = overflingDistance = 0; |
| } |
| |
| if (mSnapScrollMode != SNAP_NONE) { |
| if ((mSnapScrollMode & SNAP_X) == SNAP_X) { |
| vy = 0; |
| } else { |
| vx = 0; |
| } |
| } |
| if ((maxX == 0 && vy == 0) || (maxY == 0 && vx == 0)) { |
| WebViewCore.resumePriority(); |
| if (!mSelectingText) { |
| WebViewCore.resumeUpdatePicture(mWebViewCore); |
| } |
| if (mScroller.springBack(scrollX, scrollY, 0, maxX, 0, maxY)) { |
| invalidate(); |
| } |
| return; |
| } |
| float currentVelocity = mScroller.getCurrVelocity(); |
| float velocity = (float) Math.hypot(vx, vy); |
| if (mLastVelocity > 0 && currentVelocity > 0 && velocity |
| > mLastVelocity * MINIMUM_VELOCITY_RATIO_FOR_ACCELERATION) { |
| float deltaR = (float) (Math.abs(Math.atan2(mLastVelY, mLastVelX) |
| - Math.atan2(vy, vx))); |
| final float circle = (float) (Math.PI) * 2.0f; |
| if (deltaR > circle * 0.9f || deltaR < circle * 0.1f) { |
| vx += currentVelocity * mLastVelX / mLastVelocity; |
| vy += currentVelocity * mLastVelY / mLastVelocity; |
| velocity = (float) Math.hypot(vx, vy); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "doFling vx= " + vx + " vy=" + vy); |
| } |
| } else if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "doFling missed " + deltaR / circle); |
| } |
| } else if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "doFling start last=" + mLastVelocity |
| + " current=" + currentVelocity |
| + " vx=" + vx + " vy=" + vy |
| + " maxX=" + maxX + " maxY=" + maxY |
| + " scrollX=" + scrollX + " scrollY=" + scrollY |
| + " layer=" + mScrollingLayer); |
| } |
| |
| // Allow sloppy flings without overscrolling at the edges. |
| if ((scrollX == 0 || scrollX == maxX) && Math.abs(vx) < Math.abs(vy)) { |
| vx = 0; |
| } |
| if ((scrollY == 0 || scrollY == maxY) && Math.abs(vy) < Math.abs(vx)) { |
| vy = 0; |
| } |
| |
| if (overscrollDistance < overflingDistance) { |
| if ((vx > 0 && scrollX == -overscrollDistance) || |
| (vx < 0 && scrollX == maxX + overscrollDistance)) { |
| vx = 0; |
| } |
| if ((vy > 0 && scrollY == -overscrollDistance) || |
| (vy < 0 && scrollY == maxY + overscrollDistance)) { |
| vy = 0; |
| } |
| } |
| |
| mLastVelX = vx; |
| mLastVelY = vy; |
| mLastVelocity = velocity; |
| |
| // no horizontal overscroll if the content just fits |
| mScroller.fling(scrollX, scrollY, -vx, -vy, 0, maxX, 0, maxY, |
| maxX == 0 ? 0 : overflingDistance, overflingDistance); |
| // Duration is calculated based on velocity. With range boundaries and overscroll |
| // we may not know how long the final animation will take. (Hence the deprecation |
| // warning on the call below.) It's not a big deal for scroll bars but if webcore |
| // resumes during this effect we will take a performance hit. See computeScroll; |
| // we resume webcore there when the animation is finished. |
| final int time = mScroller.getDuration(); |
| |
| // Suppress scrollbars for layer scrolling. |
| if (mTouchMode != TOUCH_DRAG_LAYER_MODE) { |
| awakenScrollBars(time); |
| } |
| |
| invalidate(); |
| } |
| |
| /** |
| * Returns a view containing zoom controls i.e. +/- buttons. The caller is |
| * in charge of installing this view to the view hierarchy. This view will |
| * become visible when the user starts scrolling via touch and fade away if |
| * the user does not interact with it. |
| * <p/> |
| * API version 3 introduces a built-in zoom mechanism that is shown |
| * automatically by the MapView. This is the preferred approach for |
| * showing the zoom UI. |
| * |
| * @deprecated The built-in zoom mechanism is preferred, see |
| * {@link WebSettings#setBuiltInZoomControls(boolean)}. |
| */ |
| @Deprecated |
| public View getZoomControls() { |
| checkThread(); |
| if (!getSettings().supportZoom()) { |
| Log.w(LOGTAG, "This WebView doesn't support zoom."); |
| return null; |
| } |
| return mZoomManager.getExternalZoomPicker(); |
| } |
| |
| void dismissZoomControl() { |
| mZoomManager.dismissZoomPicker(); |
| } |
| |
| float getDefaultZoomScale() { |
| return mZoomManager.getDefaultScale(); |
| } |
| |
| /** |
| * @return TRUE if the WebView can be zoomed in. |
| */ |
| public boolean canZoomIn() { |
| checkThread(); |
| return mZoomManager.canZoomIn(); |
| } |
| |
| /** |
| * @return TRUE if the WebView can be zoomed out. |
| */ |
| public boolean canZoomOut() { |
| checkThread(); |
| return mZoomManager.canZoomOut(); |
| } |
| |
| /** |
| * Perform zoom in in the webview |
| * @return TRUE if zoom in succeeds. FALSE if no zoom changes. |
| */ |
| public boolean zoomIn() { |
| checkThread(); |
| return mZoomManager.zoomIn(); |
| } |
| |
| /** |
| * Perform zoom out in the webview |
| * @return TRUE if zoom out succeeds. FALSE if no zoom changes. |
| */ |
| public boolean zoomOut() { |
| checkThread(); |
| return mZoomManager.zoomOut(); |
| } |
| |
| private void updateSelection() { |
| if (mNativeClass == 0) { |
| return; |
| } |
| // mLastTouchX and mLastTouchY are the point in the current viewport |
| int contentX = viewToContentX(mLastTouchX + mScrollX); |
| int contentY = viewToContentY(mLastTouchY + mScrollY); |
| int slop = viewToContentDimension(mNavSlop); |
| Rect rect = new Rect(contentX - slop, contentY - slop, |
| contentX + slop, contentY + slop); |
| nativeSelectBestAt(rect); |
| mInitialHitTestResult = hitTestResult(null); |
| } |
| |
| /** |
| * Scroll the focused text field to match the WebTextView |
| * @param xPercent New x position of the WebTextView from 0 to 1. |
| */ |
| /*package*/ void scrollFocusedTextInputX(float xPercent) { |
| if (!inEditingMode() || mWebViewCore == null) { |
| return; |
| } |
| mWebViewCore.sendMessage(EventHub.SCROLL_TEXT_INPUT, 0, |
| new Float(xPercent)); |
| } |
| |
| /** |
| * Scroll the focused textarea vertically to match the WebTextView |
| * @param y New y position of the WebTextView in view coordinates |
| */ |
| /* package */ void scrollFocusedTextInputY(int y) { |
| if (!inEditingMode() || mWebViewCore == null) { |
| return; |
| } |
| mWebViewCore.sendMessage(EventHub.SCROLL_TEXT_INPUT, 0, viewToContentDimension(y)); |
| } |
| |
| /** |
| * Set our starting point and time for a drag from the WebTextView. |
| */ |
| /*package*/ void initiateTextFieldDrag(float x, float y, long eventTime) { |
| if (!inEditingMode()) { |
| return; |
| } |
| mLastTouchX = Math.round(x + mWebTextView.getLeft() - mScrollX); |
| mLastTouchY = Math.round(y + mWebTextView.getTop() - mScrollY); |
| mLastTouchTime = eventTime; |
| if (!mScroller.isFinished()) { |
| abortAnimation(); |
| mPrivateHandler.removeMessages(RESUME_WEBCORE_PRIORITY); |
| } |
| mSnapScrollMode = SNAP_NONE; |
| mVelocityTracker = VelocityTracker.obtain(); |
| mTouchMode = TOUCH_DRAG_START_MODE; |
| } |
| |
| /** |
| * Given a motion event from the WebTextView, set its location to our |
| * coordinates, and handle the event. |
| */ |
| /*package*/ boolean textFieldDrag(MotionEvent event) { |
| if (!inEditingMode()) { |
| return false; |
| } |
| mDragFromTextInput = true; |
| event.offsetLocation((float) (mWebTextView.getLeft() - mScrollX), |
| (float) (mWebTextView.getTop() - mScrollY)); |
| boolean result = onTouchEvent(event); |
| mDragFromTextInput = false; |
| return result; |
| } |
| |
| /** |
| * Due a touch up from a WebTextView. This will be handled by webkit to |
| * change the selection. |
| * @param event MotionEvent in the WebTextView's coordinates. |
| */ |
| /*package*/ void touchUpOnTextField(MotionEvent event) { |
| if (!inEditingMode()) { |
| return; |
| } |
| int x = viewToContentX((int) event.getX() + mWebTextView.getLeft()); |
| int y = viewToContentY((int) event.getY() + mWebTextView.getTop()); |
| int slop = viewToContentDimension(mNavSlop); |
| nativeMotionUp(x, y, slop); |
| } |
| |
| /** |
| * Called when pressing the center key or trackball on a textfield. |
| */ |
| /*package*/ void centerKeyPressOnTextField() { |
| mWebViewCore.sendMessage(EventHub.CLICK, nativeCursorFramePointer(), |
| nativeCursorNodePointer()); |
| } |
| |
| private void doShortPress() { |
| if (mNativeClass == 0) { |
| return; |
| } |
| if (mPreventDefault == PREVENT_DEFAULT_YES) { |
| return; |
| } |
| mTouchMode = TOUCH_DONE_MODE; |
| switchOutDrawHistory(); |
| // mLastTouchX and mLastTouchY are the point in the current viewport |
| int contentX = viewToContentX(mLastTouchX + mScrollX); |
| int contentY = viewToContentY(mLastTouchY + mScrollY); |
| int slop = viewToContentDimension(mNavSlop); |
| if (getSettings().supportTouchOnly()) { |
| removeTouchHighlight(false); |
| WebViewCore.TouchUpData touchUpData = new WebViewCore.TouchUpData(); |
| // use "0" as generation id to inform WebKit to use the same x/y as |
| // it used when processing GET_TOUCH_HIGHLIGHT_RECTS |
| touchUpData.mMoveGeneration = 0; |
| mWebViewCore.sendMessage(EventHub.TOUCH_UP, touchUpData); |
| } else if (nativePointInNavCache(contentX, contentY, slop)) { |
| WebViewCore.MotionUpData motionUpData = new WebViewCore |
| .MotionUpData(); |
| motionUpData.mFrame = nativeCacheHitFramePointer(); |
| motionUpData.mNode = nativeCacheHitNodePointer(); |
| motionUpData.mBounds = nativeCacheHitNodeBounds(); |
| motionUpData.mX = contentX; |
| motionUpData.mY = contentY; |
| mWebViewCore.sendMessageAtFrontOfQueue(EventHub.VALID_NODE_BOUNDS, |
| motionUpData); |
| } else { |
| doMotionUp(contentX, contentY); |
| } |
| } |
| |
| private void doMotionUp(int contentX, int contentY) { |
| int slop = viewToContentDimension(mNavSlop); |
| if (nativeMotionUp(contentX, contentY, slop) && mLogEvent) { |
| EventLog.writeEvent(EventLogTags.BROWSER_SNAP_CENTER); |
| } |
| if (nativeHasCursorNode() && !nativeCursorIsTextInput()) { |
| playSoundEffect(SoundEffectConstants.CLICK); |
| } |
| } |
| |
| /** |
| * Returns plugin bounds if x/y in content coordinates corresponds to a |
| * plugin. Otherwise a NULL rectangle is returned. |
| */ |
| Rect getPluginBounds(int x, int y) { |
| int slop = viewToContentDimension(mNavSlop); |
| if (nativePointInNavCache(x, y, slop) && nativeCacheHitIsPlugin()) { |
| return nativeCacheHitNodeBounds(); |
| } else { |
| return null; |
| } |
| } |
| |
| /* |
| * Return true if the rect (e.g. plugin) is fully visible and maximized |
| * inside the WebView. |
| */ |
| boolean isRectFitOnScreen(Rect rect) { |
| final int rectWidth = rect.width(); |
| final int rectHeight = rect.height(); |
| final int viewWidth = getViewWidth(); |
| final int viewHeight = getViewHeightWithTitle(); |
| float scale = Math.min((float) viewWidth / rectWidth, (float) viewHeight / rectHeight); |
| scale = mZoomManager.computeScaleWithLimits(scale); |
| return !mZoomManager.willScaleTriggerZoom(scale) |
| && contentToViewX(rect.left) >= mScrollX |
| && contentToViewX(rect.right) <= mScrollX + viewWidth |
| && contentToViewY(rect.top) >= mScrollY |
| && contentToViewY(rect.bottom) <= mScrollY + viewHeight; |
| } |
| |
| /* |
| * Maximize and center the rectangle, specified in the document coordinate |
| * space, inside the WebView. If the zoom doesn't need to be changed, do an |
| * animated scroll to center it. If the zoom needs to be changed, find the |
| * zoom center and do a smooth zoom transition. The rect is in document |
| * coordinates |
| */ |
| void centerFitRect(Rect rect) { |
| final int rectWidth = rect.width(); |
| final int rectHeight = rect.height(); |
| final int viewWidth = getViewWidth(); |
| final int viewHeight = getViewHeightWithTitle(); |
| float scale = Math.min((float) viewWidth / rectWidth, (float) viewHeight |
| / rectHeight); |
| scale = mZoomManager.computeScaleWithLimits(scale); |
| if (!mZoomManager.willScaleTriggerZoom(scale)) { |
| pinScrollTo(contentToViewX(rect.left + rectWidth / 2) - viewWidth / 2, |
| contentToViewY(rect.top + rectHeight / 2) - viewHeight / 2, |
| true, 0); |
| } else { |
| float actualScale = mZoomManager.getScale(); |
| float oldScreenX = rect.left * actualScale - mScrollX; |
| float rectViewX = rect.left * scale; |
| float rectViewWidth = rectWidth * scale; |
| float newMaxWidth = mContentWidth * scale; |
| float newScreenX = (viewWidth - rectViewWidth) / 2; |
| // pin the newX to the WebView |
| if (newScreenX > rectViewX) { |
| newScreenX = rectViewX; |
| } else if (newScreenX > (newMaxWidth - rectViewX - rectViewWidth)) { |
| newScreenX = viewWidth - (newMaxWidth - rectViewX); |
| } |
| float zoomCenterX = (oldScreenX * scale - newScreenX * actualScale) |
| / (scale - actualScale); |
| float oldScreenY = rect.top * actualScale + getTitleHeight() |
| - mScrollY; |
| float rectViewY = rect.top * scale + getTitleHeight(); |
| float rectViewHeight = rectHeight * scale; |
| float newMaxHeight = mContentHeight * scale + getTitleHeight(); |
| float newScreenY = (viewHeight - rectViewHeight) / 2; |
| // pin the newY to the WebView |
| if (newScreenY > rectViewY) { |
| newScreenY = rectViewY; |
| } else if (newScreenY > (newMaxHeight - rectViewY - rectViewHeight)) { |
| newScreenY = viewHeight - (newMaxHeight - rectViewY); |
| } |
| float zoomCenterY = (oldScreenY * scale - newScreenY * actualScale) |
| / (scale - actualScale); |
| mZoomManager.setZoomCenter(zoomCenterX, zoomCenterY); |
| mZoomManager.startZoomAnimation(scale, false); |
| } |
| } |
| |
| // Called by JNI to handle a touch on a node representing an email address, |
| // address, or phone number |
| private void overrideLoading(String url) { |
| mCallbackProxy.uiOverrideUrlLoading(url); |
| } |
| |
| @Override |
| public boolean requestFocus(int direction, Rect previouslyFocusedRect) { |
| // FIXME: If a subwindow is showing find, and the user touches the |
| // background window, it can steal focus. |
| if (mFindIsUp) return false; |
| boolean result = false; |
| if (inEditingMode()) { |
| result = mWebTextView.requestFocus(direction, |
| previouslyFocusedRect); |
| } else { |
| result = super.requestFocus(direction, previouslyFocusedRect); |
| if (mWebViewCore.getSettings().getNeedInitialFocus() && !isInTouchMode()) { |
| // For cases such as GMail, where we gain focus from a direction, |
| // we want to move to the first available link. |
| // FIXME: If there are no visible links, we may not want to |
| int fakeKeyDirection = 0; |
| switch(direction) { |
| case View.FOCUS_UP: |
| fakeKeyDirection = KeyEvent.KEYCODE_DPAD_UP; |
| break; |
| case View.FOCUS_DOWN: |
| fakeKeyDirection = KeyEvent.KEYCODE_DPAD_DOWN; |
| break; |
| case View.FOCUS_LEFT: |
| fakeKeyDirection = KeyEvent.KEYCODE_DPAD_LEFT; |
| break; |
| case View.FOCUS_RIGHT: |
| fakeKeyDirection = KeyEvent.KEYCODE_DPAD_RIGHT; |
| break; |
| default: |
| return result; |
| } |
| if (mNativeClass != 0 && !nativeHasCursorNode()) { |
| navHandledKey(fakeKeyDirection, 1, true, 0); |
| } |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| |
| int heightMode = MeasureSpec.getMode(heightMeasureSpec); |
| int heightSize = MeasureSpec.getSize(heightMeasureSpec); |
| int widthMode = MeasureSpec.getMode(widthMeasureSpec); |
| int widthSize = MeasureSpec.getSize(widthMeasureSpec); |
| |
| int measuredHeight = heightSize; |
| int measuredWidth = widthSize; |
| |
| // Grab the content size from WebViewCore. |
| int contentHeight = contentToViewDimension(mContentHeight); |
| int contentWidth = contentToViewDimension(mContentWidth); |
| |
| // Log.d(LOGTAG, "------- measure " + heightMode); |
| |
| if (heightMode != MeasureSpec.EXACTLY) { |
| mHeightCanMeasure = true; |
| measuredHeight = contentHeight; |
| if (heightMode == MeasureSpec.AT_MOST) { |
| // If we are larger than the AT_MOST height, then our height can |
| // no longer be measured and we should scroll internally. |
| if (measuredHeight > heightSize) { |
| measuredHeight = heightSize; |
| mHeightCanMeasure = false; |
| measuredHeight |= MEASURED_STATE_TOO_SMALL; |
| } |
| } |
| } else { |
| mHeightCanMeasure = false; |
| } |
| if (mNativeClass != 0) { |
| nativeSetHeightCanMeasure(mHeightCanMeasure); |
| } |
| // For the width, always use the given size unless unspecified. |
| if (widthMode == MeasureSpec.UNSPECIFIED) { |
| mWidthCanMeasure = true; |
| measuredWidth = contentWidth; |
| } else { |
| if (measuredWidth < contentWidth) { |
| measuredWidth |= MEASURED_STATE_TOO_SMALL; |
| } |
| mWidthCanMeasure = false; |
| } |
| |
| synchronized (this) { |
| setMeasuredDimension(measuredWidth, measuredHeight); |
| } |
| } |
| |
| @Override |
| public boolean requestChildRectangleOnScreen(View child, |
| Rect rect, |
| boolean immediate) { |
| if (mNativeClass == 0) { |
| return false; |
| } |
| // don't scroll while in zoom animation. When it is done, we will adjust |
| // the necessary components (e.g., WebTextView if it is in editing mode) |
| if (mZoomManager.isFixedLengthAnimationInProgress()) { |
| return false; |
| } |
| |
| rect.offset(child.getLeft() - child.getScrollX(), |
| child.getTop() - child.getScrollY()); |
| |
| Rect content = new Rect(viewToContentX(mScrollX), |
| viewToContentY(mScrollY), |
| viewToContentX(mScrollX + getWidth() |
| - getVerticalScrollbarWidth()), |
| viewToContentY(mScrollY + getViewHeightWithTitle())); |
| content = nativeSubtractLayers(content); |
| int screenTop = contentToViewY(content.top); |
| int screenBottom = contentToViewY(content.bottom); |
| int height = screenBottom - screenTop; |
| int scrollYDelta = 0; |
| |
| if (rect.bottom > screenBottom) { |
| int oneThirdOfScreenHeight = height / 3; |
| if (rect.height() > 2 * oneThirdOfScreenHeight) { |
| // If the rectangle is too tall to fit in the bottom two thirds |
| // of the screen, place it at the top. |
| scrollYDelta = rect.top - screenTop; |
| } else { |
| // If the rectangle will still fit on screen, we want its |
| // top to be in the top third of the screen. |
| scrollYDelta = rect.top - (screenTop + oneThirdOfScreenHeight); |
| } |
| } else if (rect.top < screenTop) { |
| scrollYDelta = rect.top - screenTop; |
| } |
| |
| int screenLeft = contentToViewX(content.left); |
| int screenRight = contentToViewX(content.right); |
| int width = screenRight - screenLeft; |
| int scrollXDelta = 0; |
| |
| if (rect.right > screenRight && rect.left > screenLeft) { |
| if (rect.width() > width) { |
| scrollXDelta += (rect.left - screenLeft); |
| } else { |
| scrollXDelta += (rect.right - screenRight); |
| } |
| } else if (rect.left < screenLeft) { |
| scrollXDelta -= (screenLeft - rect.left); |
| } |
| |
| if ((scrollYDelta | scrollXDelta) != 0) { |
| return pinScrollBy(scrollXDelta, scrollYDelta, !immediate, 0); |
| } |
| |
| return false; |
| } |
| |
| /* package */ void replaceTextfieldText(int oldStart, int oldEnd, |
| String replace, int newStart, int newEnd) { |
| WebViewCore.ReplaceTextData arg = new WebViewCore.ReplaceTextData(); |
| arg.mReplace = replace; |
| arg.mNewStart = newStart; |
| arg.mNewEnd = newEnd; |
| mTextGeneration++; |
| arg.mTextGeneration = mTextGeneration; |
| mWebViewCore.sendMessage(EventHub.REPLACE_TEXT, oldStart, oldEnd, arg); |
| } |
| |
| /* package */ void passToJavaScript(String currentText, KeyEvent event) { |
| WebViewCore.JSKeyData arg = new WebViewCore.JSKeyData(); |
| arg.mEvent = event; |
| arg.mCurrentText = currentText; |
| // Increase our text generation number, and pass it to webcore thread |
| mTextGeneration++; |
| mWebViewCore.sendMessage(EventHub.PASS_TO_JS, mTextGeneration, 0, arg); |
| // WebKit's document state is not saved until about to leave the page. |
| // To make sure the host application, like Browser, has the up to date |
| // document state when it goes to background, we force to save the |
| // document state. |
| mWebViewCore.removeMessages(EventHub.SAVE_DOCUMENT_STATE); |
| mWebViewCore.sendMessageDelayed(EventHub.SAVE_DOCUMENT_STATE, |
| cursorData(), 1000); |
| } |
| |
| /** |
| * @hide |
| */ |
| public synchronized WebViewCore getWebViewCore() { |
| return mWebViewCore; |
| } |
| |
| /** |
| * Used only by TouchEventQueue to store pending touch events. |
| */ |
| private static class QueuedTouch { |
| long mSequence; |
| MotionEvent mEvent; // Optional |
| TouchEventData mTed; // Optional |
| |
| QueuedTouch mNext; |
| |
| public QueuedTouch set(TouchEventData ted) { |
| mSequence = ted.mSequence; |
| mTed = ted; |
| mEvent = null; |
| mNext = null; |
| return this; |
| } |
| |
| public QueuedTouch set(MotionEvent ev, long sequence) { |
| mEvent = MotionEvent.obtain(ev); |
| mSequence = sequence; |
| mTed = null; |
| mNext = null; |
| return this; |
| } |
| |
| public QueuedTouch add(QueuedTouch other) { |
| if (other.mSequence < mSequence) { |
| other.mNext = this; |
| return other; |
| } |
| |
| QueuedTouch insertAt = this; |
| while (insertAt.mNext != null && insertAt.mNext.mSequence < other.mSequence) { |
| insertAt = insertAt.mNext; |
| } |
| other.mNext = insertAt.mNext; |
| insertAt.mNext = other; |
| return this; |
| } |
| } |
| |
| /** |
| * WebView handles touch events asynchronously since some events must be passed to WebKit |
| * for potentially slower processing. TouchEventQueue serializes touch events regardless |
| * of which path they take to ensure that no events are ever processed out of order |
| * by WebView. |
| */ |
| private class TouchEventQueue { |
| private long mNextTouchSequence = Long.MIN_VALUE + 1; |
| private long mLastHandledTouchSequence = Long.MIN_VALUE; |
| private long mIgnoreUntilSequence = Long.MIN_VALUE + 1; |
| |
| // Events waiting to be processed. |
| private QueuedTouch mTouchEventQueue; |
| |
| // Known events that are waiting on a response before being enqueued. |
| private QueuedTouch mPreQueue; |
| |
| // Pool of QueuedTouch objects saved for later use. |
| private QueuedTouch mQueuedTouchRecycleBin; |
| private int mQueuedTouchRecycleCount; |
| |
| private long mLastEventTime = Long.MAX_VALUE; |
| private static final int MAX_RECYCLED_QUEUED_TOUCH = 15; |
| |
| // milliseconds until we abandon hope of getting all of a previous gesture |
| private static final int QUEUED_GESTURE_TIMEOUT = 1000; |
| |
| private QueuedTouch obtainQueuedTouch() { |
| if (mQueuedTouchRecycleBin != null) { |
| QueuedTouch result = mQueuedTouchRecycleBin; |
| mQueuedTouchRecycleBin = result.mNext; |
| mQueuedTouchRecycleCount--; |
| return result; |
| } |
| return new QueuedTouch(); |
| } |
| |
| /** |
| * Allow events with any currently missing sequence numbers to be skipped in processing. |
| */ |
| public void ignoreCurrentlyMissingEvents() { |
| mIgnoreUntilSequence = mNextTouchSequence; |
| |
| // Run any events we have available and complete, pre-queued or otherwise. |
| runQueuedAndPreQueuedEvents(); |
| } |
| |
| private void runQueuedAndPreQueuedEvents() { |
| QueuedTouch qd = mPreQueue; |
| boolean fromPreQueue = true; |
| while (qd != null && qd.mSequence == mLastHandledTouchSequence + 1) { |
| handleQueuedTouch(qd); |
| QueuedTouch recycleMe = qd; |
| if (fromPreQueue) { |
| mPreQueue = qd.mNext; |
| } else { |
| mTouchEventQueue = qd.mNext; |
| } |
| recycleQueuedTouch(recycleMe); |
| mLastHandledTouchSequence++; |
| |
| long nextPre = mPreQueue != null ? mPreQueue.mSequence : Long.MAX_VALUE; |
| long nextQueued = mTouchEventQueue != null ? |
| mTouchEventQueue.mSequence : Long.MAX_VALUE; |
| fromPreQueue = nextPre < nextQueued; |
| qd = fromPreQueue ? mPreQueue : mTouchEventQueue; |
| } |
| } |
| |
| /** |
| * Add a TouchEventData to the pre-queue. |
| * |
| * An event in the pre-queue is an event that we know about that |
| * has been sent to webkit, but that we haven't received back and |
| * enqueued into the normal touch queue yet. If webkit ever times |
| * out and we need to ignore currently missing events, we'll run |
| * events from the pre-queue to patch the holes. |
| * |
| * @param ted TouchEventData to pre-queue |
| */ |
| public void preQueueTouchEventData(TouchEventData ted) { |
| QueuedTouch newTouch = obtainQueuedTouch().set(ted); |
| if (mPreQueue == null) { |
| mPreQueue = newTouch; |
| } else { |
| QueuedTouch insertionPoint = mPreQueue; |
| while (insertionPoint.mNext != null && |
| insertionPoint.mNext.mSequence < newTouch.mSequence) { |
| insertionPoint = insertionPoint.mNext; |
| } |
| newTouch.mNext = insertionPoint.mNext; |
| insertionPoint.mNext = newTouch; |
| } |
| } |
| |
| private void recycleQueuedTouch(QueuedTouch qd) { |
| if (mQueuedTouchRecycleCount < MAX_RECYCLED_QUEUED_TOUCH) { |
| qd.mNext = mQueuedTouchRecycleBin; |
| mQueuedTouchRecycleBin = qd; |
| mQueuedTouchRecycleCount++; |
| } |
| } |
| |
| /** |
| * Reset the touch event queue. This will dump any pending events |
| * and reset the sequence numbering. |
| */ |
| public void reset() { |
| mNextTouchSequence = Long.MIN_VALUE + 1; |
| mLastHandledTouchSequence = Long.MIN_VALUE; |
| mIgnoreUntilSequence = Long.MIN_VALUE + 1; |
| while (mTouchEventQueue != null) { |
| QueuedTouch recycleMe = mTouchEventQueue; |
| mTouchEventQueue = mTouchEventQueue.mNext; |
| recycleQueuedTouch(recycleMe); |
| } |
| while (mPreQueue != null) { |
| QueuedTouch recycleMe = mPreQueue; |
| mPreQueue = mPreQueue.mNext; |
| recycleQueuedTouch(recycleMe); |
| } |
| } |
| |
| /** |
| * Return the next valid sequence number for tagging incoming touch events. |
| * @return The next touch event sequence number |
| */ |
| public long nextTouchSequence() { |
| return mNextTouchSequence++; |
| } |
| |
| /** |
| * Enqueue a touch event in the form of TouchEventData. |
| * The sequence number will be read from the mSequence field of the argument. |
| * |
| * If the touch event's sequence number is the next in line to be processed, it will |
| * be handled before this method returns. Any subsequent events that have already |
| * been queued will also be processed in their proper order. |
| * |
| * @param ted Touch data to be processed in order. |
| * @return true if the event was processed before returning, false if it was just enqueued. |
| */ |
| public boolean enqueueTouchEvent(TouchEventData ted) { |
| // Remove from the pre-queue if present |
| QueuedTouch preQueue = mPreQueue; |
| if (preQueue != null) { |
| // On exiting this block, preQueue is set to the pre-queued QueuedTouch object |
| // if it was present in the pre-queue, and removed from the pre-queue itself. |
| if (preQueue.mSequence == ted.mSequence) { |
| mPreQueue = preQueue.mNext; |
| } else { |
| QueuedTouch prev = preQueue; |
| preQueue = null; |
| while (prev.mNext != null) { |
| if (prev.mNext.mSequence == ted.mSequence) { |
| preQueue = prev.mNext; |
| prev.mNext = preQueue.mNext; |
| break; |
| } else { |
| prev = prev.mNext; |
| } |
| } |
| } |
| } |
| |
| if (ted.mSequence < mLastHandledTouchSequence) { |
| // Stale event and we already moved on; drop it. (Should not be common.) |
| Log.w(LOGTAG, "Stale touch event " + MotionEvent.actionToString(ted.mAction) + |
| " received from webcore; ignoring"); |
| return false; |
| } |
| |
| if (dropStaleGestures(ted.mMotionEvent, ted.mSequence)) { |
| return false; |
| } |
| |
| // dropStaleGestures above might have fast-forwarded us to |
| // an event we have already. |
| runNextQueuedEvents(); |
| |
| if (mLastHandledTouchSequence + 1 == ted.mSequence) { |
| if (preQueue != null) { |
| recycleQueuedTouch(preQueue); |
| preQueue = null; |
| } |
| handleQueuedTouchEventData(ted); |
| |
| mLastHandledTouchSequence++; |
| |
| // Do we have any more? Run them if so. |
| runNextQueuedEvents(); |
| } else { |
| // Reuse the pre-queued object if we had it. |
| QueuedTouch qd = preQueue != null ? preQueue : obtainQueuedTouch().set(ted); |
| mTouchEventQueue = mTouchEventQueue == null ? qd : mTouchEventQueue.add(qd); |
| } |
| return true; |
| } |
| |
| /** |
| * Enqueue a touch event in the form of a MotionEvent from the framework. |
| * |
| * If the touch event's sequence number is the next in line to be processed, it will |
| * be handled before this method returns. Any subsequent events that have already |
| * been queued will also be processed in their proper order. |
| * |
| * @param ev MotionEvent to be processed in order |
| */ |
| public void enqueueTouchEvent(MotionEvent ev) { |
| final long sequence = nextTouchSequence(); |
| |
| if (dropStaleGestures(ev, sequence)) { |
| return; |
| } |
| |
| // dropStaleGestures above might have fast-forwarded us to |
| // an event we have already. |
| runNextQueuedEvents(); |
| |
| if (mLastHandledTouchSequence + 1 == sequence) { |
| handleQueuedMotionEvent(ev); |
| |
| mLastHandledTouchSequence++; |
| |
| // Do we have any more? Run them if so. |
| runNextQueuedEvents(); |
| } else { |
| QueuedTouch qd = obtainQueuedTouch().set(ev, sequence); |
| mTouchEventQueue = mTouchEventQueue == null ? qd : mTouchEventQueue.add(qd); |
| } |
| } |
| |
| private void runNextQueuedEvents() { |
| QueuedTouch qd = mTouchEventQueue; |
| while (qd != null && qd.mSequence == mLastHandledTouchSequence + 1) { |
| handleQueuedTouch(qd); |
| QueuedTouch recycleMe = qd; |
| qd = qd.mNext; |
| recycleQueuedTouch(recycleMe); |
| mLastHandledTouchSequence++; |
| } |
| mTouchEventQueue = qd; |
| } |
| |
| private boolean dropStaleGestures(MotionEvent ev, long sequence) { |
| if (ev != null && ev.getAction() == MotionEvent.ACTION_MOVE && !mConfirmMove) { |
| // This is to make sure that we don't attempt to process a tap |
| // or long press when webkit takes too long to get back to us. |
| // The movement will be properly confirmed when we process the |
| // enqueued event later. |
| final int dx = Math.round(ev.getX()) - mLastTouchX; |
| final int dy = Math.round(ev.getY()) - mLastTouchY; |
| if (dx * dx + dy * dy > mTouchSlopSquare) { |
| mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| } |
| } |
| |
| if (mTouchEventQueue == null) { |
| return sequence <= mLastHandledTouchSequence; |
| } |
| |
| // If we have a new down event and it's been a while since the last event |
| // we saw, catch up as best we can and keep going. |
| if (ev != null && ev.getAction() == MotionEvent.ACTION_DOWN) { |
| long eventTime = ev.getEventTime(); |
| long lastHandledEventTime = mLastEventTime; |
| if (eventTime > lastHandledEventTime + QUEUED_GESTURE_TIMEOUT) { |
| Log.w(LOGTAG, "Got ACTION_DOWN but still waiting on stale event. " + |
| "Catching up."); |
| runQueuedAndPreQueuedEvents(); |
| |
| // Drop leftovers that we truly don't have. |
| QueuedTouch qd = mTouchEventQueue; |
| while (qd != null && qd.mSequence < sequence) { |
| QueuedTouch recycleMe = qd; |
| qd = qd.mNext; |
| recycleQueuedTouch(recycleMe); |
| } |
| mTouchEventQueue = qd; |
| mLastHandledTouchSequence = sequence - 1; |
| } |
| } |
| |
| if (mIgnoreUntilSequence - 1 > mLastHandledTouchSequence) { |
| QueuedTouch qd = mTouchEventQueue; |
| while (qd != null && qd.mSequence < mIgnoreUntilSequence) { |
| QueuedTouch recycleMe = qd; |
| qd = qd.mNext; |
| recycleQueuedTouch(recycleMe); |
| } |
| mTouchEventQueue = qd; |
| mLastHandledTouchSequence = mIgnoreUntilSequence - 1; |
| } |
| |
| if (mPreQueue != null) { |
| // Drop stale prequeued events |
| QueuedTouch qd = mPreQueue; |
| while (qd != null && qd.mSequence < mIgnoreUntilSequence) { |
| QueuedTouch recycleMe = qd; |
| qd = qd.mNext; |
| recycleQueuedTouch(recycleMe); |
| } |
| mPreQueue = qd; |
| } |
| |
| return sequence <= mLastHandledTouchSequence; |
| } |
| |
| private void handleQueuedTouch(QueuedTouch qt) { |
| if (qt.mTed != null) { |
| handleQueuedTouchEventData(qt.mTed); |
| } else { |
| handleQueuedMotionEvent(qt.mEvent); |
| qt.mEvent.recycle(); |
| } |
| } |
| |
| private void handleQueuedMotionEvent(MotionEvent ev) { |
| mLastEventTime = ev.getEventTime(); |
| int action = ev.getActionMasked(); |
| if (ev.getPointerCount() > 1) { // Multi-touch |
| handleMultiTouchInWebView(ev); |
| } else { |
| final ScaleGestureDetector detector = mZoomManager.getMultiTouchGestureDetector(); |
| if (detector != null && mPreventDefault != PREVENT_DEFAULT_YES) { |
| // ScaleGestureDetector needs a consistent event stream to operate properly. |
| // It won't take any action with fewer than two pointers, but it needs to |
| // update internal bookkeeping state. |
| detector.onTouchEvent(ev); |
| } |
| |
| handleTouchEventCommon(ev, action, Math.round(ev.getX()), Math.round(ev.getY())); |
| } |
| } |
| |
| private void handleQueuedTouchEventData(TouchEventData ted) { |
| if (ted.mMotionEvent != null) { |
| mLastEventTime = ted.mMotionEvent.getEventTime(); |
| } |
| if (!ted.mReprocess) { |
| if (ted.mAction == MotionEvent.ACTION_DOWN |
| && mPreventDefault == PREVENT_DEFAULT_MAYBE_YES) { |
| // if prevent default is called from WebCore, UI |
| // will not handle the rest of the touch events any |
| // more. |
| mPreventDefault = ted.mNativeResult ? PREVENT_DEFAULT_YES |
| : PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN; |
| } else if (ted.mAction == MotionEvent.ACTION_MOVE |
| && mPreventDefault == PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN) { |
| // the return for the first ACTION_MOVE will decide |
| // whether UI will handle touch or not. Currently no |
| // support for alternating prevent default |
| mPreventDefault = ted.mNativeResult ? PREVENT_DEFAULT_YES |
| : PREVENT_DEFAULT_NO; |
| } |
| if (mPreventDefault == PREVENT_DEFAULT_YES) { |
| mTouchHighlightRegion.setEmpty(); |
| } |
| } else { |
| if (ted.mPoints.length > 1) { // multi-touch |
| if (!ted.mNativeResult && mPreventDefault != PREVENT_DEFAULT_YES) { |
| mPreventDefault = PREVENT_DEFAULT_NO; |
| handleMultiTouchInWebView(ted.mMotionEvent); |
| } else { |
| mPreventDefault = PREVENT_DEFAULT_YES; |
| } |
| return; |
| } |
| |
| // prevent default is not called in WebCore, so the |
| // message needs to be reprocessed in UI |
| if (!ted.mNativeResult) { |
| // Following is for single touch. |
| switch (ted.mAction) { |
| case MotionEvent.ACTION_DOWN: |
| mLastDeferTouchX = ted.mPointsInView[0].x; |
| mLastDeferTouchY = ted.mPointsInView[0].y; |
| mDeferTouchMode = TOUCH_INIT_MODE; |
| break; |
| case MotionEvent.ACTION_MOVE: { |
| // no snapping in defer process |
| int x = ted.mPointsInView[0].x; |
| int y = ted.mPointsInView[0].y; |
| |
| if (mDeferTouchMode != TOUCH_DRAG_MODE) { |
| mDeferTouchMode = TOUCH_DRAG_MODE; |
| mLastDeferTouchX = x; |
| mLastDeferTouchY = y; |
| startScrollingLayer(x, y); |
| startDrag(); |
| } |
| int deltaX = pinLocX((int) (mScrollX |
| + mLastDeferTouchX - x)) |
| - mScrollX; |
| int deltaY = pinLocY((int) (mScrollY |
| + mLastDeferTouchY - y)) |
| - mScrollY; |
| doDrag(deltaX, deltaY); |
| if (deltaX != 0) mLastDeferTouchX = x; |
| if (deltaY != 0) mLastDeferTouchY = y; |
| break; |
| } |
| case MotionEvent.ACTION_UP: |
| case MotionEvent.ACTION_CANCEL: |
| if (mDeferTouchMode == TOUCH_DRAG_MODE) { |
| // no fling in defer process |
| mScroller.springBack(mScrollX, mScrollY, 0, |
| computeMaxScrollX(), 0, |
| computeMaxScrollY()); |
| invalidate(); |
| WebViewCore.resumePriority(); |
| WebViewCore.resumeUpdatePicture(mWebViewCore); |
| } |
| mDeferTouchMode = TOUCH_DONE_MODE; |
| break; |
| case WebViewCore.ACTION_DOUBLETAP: |
| // doDoubleTap() needs mLastTouchX/Y as anchor |
| mLastDeferTouchX = ted.mPointsInView[0].x; |
| mLastDeferTouchY = ted.mPointsInView[0].y; |
| mZoomManager.handleDoubleTap(mLastTouchX, mLastTouchY); |
| mDeferTouchMode = TOUCH_DONE_MODE; |
| break; |
| case WebViewCore.ACTION_LONGPRESS: |
| HitTestResult hitTest = getHitTestResult(); |
| if (hitTest != null && hitTest.mType |
| != HitTestResult.UNKNOWN_TYPE) { |
| performLongClick(); |
| } |
| mDeferTouchMode = TOUCH_DONE_MODE; |
| break; |
| } |
| } |
| } |
| } |
| } |
| |
| //------------------------------------------------------------------------- |
| // Methods can be called from a separate thread, like WebViewCore |
| // If it needs to call the View system, it has to send message. |
| //------------------------------------------------------------------------- |
| |
| /** |
| * General handler to receive message coming from webkit thread |
| */ |
| class PrivateHandler extends Handler { |
| @Override |
| public void handleMessage(Message msg) { |
| // exclude INVAL_RECT_MSG_ID since it is frequently output |
| if (DebugFlags.WEB_VIEW && msg.what != INVAL_RECT_MSG_ID) { |
| if (msg.what >= FIRST_PRIVATE_MSG_ID |
| && msg.what <= LAST_PRIVATE_MSG_ID) { |
| Log.v(LOGTAG, HandlerPrivateDebugString[msg.what |
| - FIRST_PRIVATE_MSG_ID]); |
| } else if (msg.what >= FIRST_PACKAGE_MSG_ID |
| && msg.what <= LAST_PACKAGE_MSG_ID) { |
| Log.v(LOGTAG, HandlerPackageDebugString[msg.what |
| - FIRST_PACKAGE_MSG_ID]); |
| } else { |
| Log.v(LOGTAG, Integer.toString(msg.what)); |
| } |
| } |
| if (mWebViewCore == null) { |
| // after WebView's destroy() is called, skip handling messages. |
| return; |
| } |
| if (mBlockWebkitViewMessages |
| && msg.what != WEBCORE_INITIALIZED_MSG_ID) { |
| // Blocking messages from webkit |
| return; |
| } |
| switch (msg.what) { |
| case REMEMBER_PASSWORD: { |
| mDatabase.setUsernamePassword( |
| msg.getData().getString("host"), |
| msg.getData().getString("username"), |
| msg.getData().getString("password")); |
| ((Message) msg.obj).sendToTarget(); |
| break; |
| } |
| case NEVER_REMEMBER_PASSWORD: { |
| mDatabase.setUsernamePassword( |
| msg.getData().getString("host"), null, null); |
| ((Message) msg.obj).sendToTarget(); |
| break; |
| } |
| case PREVENT_DEFAULT_TIMEOUT: { |
| // if timeout happens, cancel it so that it won't block UI |
| // to continue handling touch events |
| if ((msg.arg1 == MotionEvent.ACTION_DOWN |
| && mPreventDefault == PREVENT_DEFAULT_MAYBE_YES) |
| || (msg.arg1 == MotionEvent.ACTION_MOVE |
| && mPreventDefault == PREVENT_DEFAULT_NO_FROM_TOUCH_DOWN)) { |
| cancelWebCoreTouchEvent( |
| viewToContentX(mLastTouchX + mScrollX), |
| viewToContentY(mLastTouchY + mScrollY), |
| true); |
| } |
| break; |
| } |
| case SCROLL_SELECT_TEXT: { |
| if (mAutoScrollX == 0 && mAutoScrollY == 0) { |
| mSentAutoScrollMessage = false; |
| break; |
| } |
| if (mScrollingLayer == 0) { |
| pinScrollBy(mAutoScrollX, mAutoScrollY, true, 0); |
| } else { |
| mScrollingLayerRect.left += mAutoScrollX; |
| mScrollingLayerRect.top += mAutoScrollY; |
| nativeScrollLayer(mScrollingLayer, |
| mScrollingLayerRect.left, |
| mScrollingLayerRect.top); |
| invalidate(); |
| } |
| sendEmptyMessageDelayed( |
| SCROLL_SELECT_TEXT, SELECT_SCROLL_INTERVAL); |
| break; |
| } |
| case SWITCH_TO_SHORTPRESS: { |
| mInitialHitTestResult = null; // set by updateSelection() |
| if (mTouchMode == TOUCH_INIT_MODE) { |
| if (!getSettings().supportTouchOnly() |
| && mPreventDefault != PREVENT_DEFAULT_YES) { |
| mTouchMode = TOUCH_SHORTPRESS_START_MODE; |
| updateSelection(); |
| } else { |
| // set to TOUCH_SHORTPRESS_MODE so that it won't |
| // trigger double tap any more |
| mTouchMode = TOUCH_SHORTPRESS_MODE; |
| } |
| } else if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) { |
| mTouchMode = TOUCH_DONE_MODE; |
| } |
| break; |
| } |
| case SWITCH_TO_LONGPRESS: { |
| if (getSettings().supportTouchOnly()) { |
| removeTouchHighlight(false); |
| } |
| if (inFullScreenMode() || mDeferTouchProcess) { |
| TouchEventData ted = new TouchEventData(); |
| ted.mAction = WebViewCore.ACTION_LONGPRESS; |
| ted.mIds = new int[1]; |
| ted.mIds[0] = 0; |
| ted.mPoints = new Point[1]; |
| ted.mPoints[0] = new Point(viewToContentX(mLastTouchX + mScrollX), |
| viewToContentY(mLastTouchY + mScrollY)); |
| ted.mPointsInView = new Point[1]; |
| ted.mPointsInView[0] = new Point(mLastTouchX, mLastTouchY); |
| // metaState for long press is tricky. Should it be the |
| // state when the press started or when the press was |
| // released? Or some intermediary key state? For |
| // simplicity for now, we don't set it. |
| ted.mMetaState = 0; |
| ted.mReprocess = mDeferTouchProcess; |
| ted.mNativeLayer = nativeScrollableLayer( |
| ted.mPoints[0].x, ted.mPoints[0].y, |
| ted.mNativeLayerRect, null); |
| ted.mSequence = mTouchEventQueue.nextTouchSequence(); |
| mTouchEventQueue.preQueueTouchEventData(ted); |
| mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); |
| } else if (mPreventDefault != PREVENT_DEFAULT_YES) { |
| mTouchMode = TOUCH_DONE_MODE; |
| performLongClick(); |
| } |
| break; |
| } |
| case RELEASE_SINGLE_TAP: { |
| doShortPress(); |
| break; |
| } |
| case SCROLL_TO_MSG_ID: { |
| // arg1 = animate, arg2 = onlyIfImeIsShowing |
| // obj = Point(x, y) |
| if (msg.arg2 == 1) { |
| // This scroll is intended to bring the textfield into |
| // view, but is only necessary if the IME is showing |
| InputMethodManager imm = InputMethodManager.peekInstance(); |
| if (imm == null || !imm.isAcceptingText() |
| || (!imm.isActive(WebView.this) && (!inEditingMode() |
| || !imm.isActive(mWebTextView)))) { |
| break; |
| } |
| } |
| final Point p = (Point) msg.obj; |
| if (msg.arg1 == 1) { |
| spawnContentScrollTo(p.x, p.y); |
| } else { |
| setContentScrollTo(p.x, p.y); |
| } |
| break; |
| } |
| case UPDATE_ZOOM_RANGE: { |
| WebViewCore.ViewState viewState = (WebViewCore.ViewState) msg.obj; |
| // mScrollX contains the new minPrefWidth |
| mZoomManager.updateZoomRange(viewState, getViewWidth(), viewState.mScrollX); |
| break; |
| } |
| case REPLACE_BASE_CONTENT: { |
| nativeReplaceBaseContent(msg.arg1); |
| break; |
| } |
| case NEW_PICTURE_MSG_ID: { |
| // called for new content |
| final WebViewCore.DrawData draw = (WebViewCore.DrawData) msg.obj; |
| setNewPicture(draw, true); |
| break; |
| } |
| case WEBCORE_INITIALIZED_MSG_ID: |
| // nativeCreate sets mNativeClass to a non-zero value |
| String drawableDir = BrowserFrame.getRawResFilename( |
| BrowserFrame.DRAWABLEDIR, mContext); |
| AssetManager am = mContext.getAssets(); |
| nativeCreate(msg.arg1, drawableDir, am); |
| if (mDelaySetPicture != null) { |
| setNewPicture(mDelaySetPicture, true); |
| mDelaySetPicture = null; |
| } |
| break; |
| case UPDATE_TEXTFIELD_TEXT_MSG_ID: |
| // Make sure that the textfield is currently focused |
| // and representing the same node as the pointer. |
| if (inEditingMode() && |
| mWebTextView.isSameTextField(msg.arg1)) { |
| if (msg.getData().getBoolean("password")) { |
| Spannable text = (Spannable) mWebTextView.getText(); |
| int start = Selection.getSelectionStart(text); |
| int end = Selection.getSelectionEnd(text); |
| mWebTextView.setInPassword(true); |
| // Restore the selection, which may have been |
| // ruined by setInPassword. |
| Spannable pword = |
| (Spannable) mWebTextView.getText(); |
| Selection.setSelection(pword, start, end); |
| // If the text entry has created more events, ignore |
| // this one. |
| } else if (msg.arg2 == mTextGeneration) { |
| String text = (String) msg.obj; |
| if (null == text) { |
| text = ""; |
| } |
| mWebTextView.setTextAndKeepSelection(text); |
| } |
| } |
| break; |
| case REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID: |
| displaySoftKeyboard(true); |
| // fall through to UPDATE_TEXT_SELECTION_MSG_ID |
| case UPDATE_TEXT_SELECTION_MSG_ID: |
| updateTextSelectionFromMessage(msg.arg1, msg.arg2, |
| (WebViewCore.TextSelectionData) msg.obj); |
| break; |
| case FORM_DID_BLUR: |
| if (inEditingMode() |
| && mWebTextView.isSameTextField(msg.arg1)) { |
| hideSoftKeyboard(); |
| } |
| break; |
| case RETURN_LABEL: |
| if (inEditingMode() |
| && mWebTextView.isSameTextField(msg.arg1)) { |
| mWebTextView.setHint((String) msg.obj); |
| InputMethodManager imm |
| = InputMethodManager.peekInstance(); |
| // The hint is propagated to the IME in |
| // onCreateInputConnection. If the IME is already |
| // active, restart it so that its hint text is updated. |
| if (imm != null && imm.isActive(mWebTextView)) { |
| imm.restartInput(mWebTextView); |
| } |
| } |
| break; |
| case UNHANDLED_NAV_KEY: |
| navHandledKey(msg.arg1, 1, false, 0); |
| break; |
| case UPDATE_TEXT_ENTRY_MSG_ID: |
| // this is sent after finishing resize in WebViewCore. Make |
| // sure the text edit box is still on the screen. |
| if (inEditingMode() && nativeCursorIsTextInput()) { |
| rebuildWebTextView(); |
| } |
| break; |
| case CLEAR_TEXT_ENTRY: |
| clearTextEntry(); |
| break; |
| case INVAL_RECT_MSG_ID: { |
| Rect r = (Rect)msg.obj; |
| if (r == null) { |
| invalidate(); |
| } else { |
| // we need to scale r from content into view coords, |
| // which viewInvalidate() does for us |
| viewInvalidate(r.left, r.top, r.right, r.bottom); |
| } |
| break; |
| } |
| case REQUEST_FORM_DATA: |
| AutoCompleteAdapter adapter = (AutoCompleteAdapter) msg.obj; |
| if (mWebTextView.isSameTextField(msg.arg1)) { |
| mWebTextView.setAdapterCustom(adapter); |
| } |
| break; |
| case RESUME_WEBCORE_PRIORITY: |
| WebViewCore.resumePriority(); |
| WebViewCore.resumeUpdatePicture(mWebViewCore); |
| break; |
| |
| case LONG_PRESS_CENTER: |
| // as this is shared by keydown and trackballdown, reset all |
| // the states |
| mGotCenterDown = false; |
| mTrackballDown = false; |
| performLongClick(); |
| break; |
| |
| case WEBCORE_NEED_TOUCH_EVENTS: |
| mForwardTouchEvents = (msg.arg1 != 0); |
| break; |
| |
| case PREVENT_TOUCH_ID: |
| if (inFullScreenMode()) { |
| break; |
| } |
| TouchEventData ted = (TouchEventData) msg.obj; |
| |
| if (mTouchEventQueue.enqueueTouchEvent(ted)) { |
| // WebCore is responding to us; remove pending timeout. |
| // It will be re-posted when needed. |
| removeMessages(PREVENT_DEFAULT_TIMEOUT); |
| } |
| break; |
| |
| case REQUEST_KEYBOARD: |
| if (msg.arg1 == 0) { |
| hideSoftKeyboard(); |
| } else { |
| displaySoftKeyboard(false); |
| } |
| break; |
| |
| case FIND_AGAIN: |
| // Ignore if find has been dismissed. |
| if (mFindIsUp && mFindCallback != null) { |
| mFindCallback.findAll(); |
| } |
| break; |
| |
| case DRAG_HELD_MOTIONLESS: |
| mHeldMotionless = MOTIONLESS_TRUE; |
| invalidate(); |
| // fall through to keep scrollbars awake |
| |
| case AWAKEN_SCROLL_BARS: |
| if (mTouchMode == TOUCH_DRAG_MODE |
| && mHeldMotionless == MOTIONLESS_TRUE) { |
| awakenScrollBars(ViewConfiguration |
| .getScrollDefaultDelay(), false); |
| mPrivateHandler.sendMessageDelayed(mPrivateHandler |
| .obtainMessage(AWAKEN_SCROLL_BARS), |
| ViewConfiguration.getScrollDefaultDelay()); |
| } |
| break; |
| |
| case DO_MOTION_UP: |
| doMotionUp(msg.arg1, msg.arg2); |
| break; |
| |
| case SCREEN_ON: |
| setKeepScreenOn(msg.arg1 == 1); |
| break; |
| |
| case ENTER_FULLSCREEN_VIDEO: |
| int layerId = msg.arg1; |
| |
| String url = (String) msg.obj; |
| if (mHTML5VideoViewProxy != null) { |
| mHTML5VideoViewProxy.enterFullScreenVideo(layerId, url); |
| } |
| break; |
| |
| case SHOW_FULLSCREEN: { |
| View view = (View) msg.obj; |
| int orientation = msg.arg1; |
| int npp = msg.arg2; |
| |
| if (inFullScreenMode()) { |
| Log.w(LOGTAG, "Should not have another full screen."); |
| dismissFullScreenMode(); |
| } |
| mFullScreenHolder = new PluginFullScreenHolder(WebView.this, orientation, npp); |
| mFullScreenHolder.setContentView(view); |
| mFullScreenHolder.show(); |
| |
| break; |
| } |
| case HIDE_FULLSCREEN: |
| dismissFullScreenMode(); |
| break; |
| |
| case DOM_FOCUS_CHANGED: |
| if (inEditingMode()) { |
| nativeClearCursor(); |
| rebuildWebTextView(); |
| } |
| break; |
| |
| case SHOW_RECT_MSG_ID: { |
| WebViewCore.ShowRectData data = (WebViewCore.ShowRectData) msg.obj; |
| int x = mScrollX; |
| int left = contentToViewX(data.mLeft); |
| int width = contentToViewDimension(data.mWidth); |
| int maxWidth = contentToViewDimension(data.mContentWidth); |
| int viewWidth = getViewWidth(); |
| if (width < viewWidth) { |
| // center align |
| x += left + width / 2 - mScrollX - viewWidth / 2; |
| } else { |
| x += (int) (left + data.mXPercentInDoc * width |
| - mScrollX - data.mXPercentInView * viewWidth); |
| } |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "showRectMsg=(left=" + left + ",width=" + |
| width + ",maxWidth=" + maxWidth + |
| ",viewWidth=" + viewWidth + ",x=" |
| + x + ",xPercentInDoc=" + data.mXPercentInDoc + |
| ",xPercentInView=" + data.mXPercentInView+ ")"); |
| } |
| // use the passing content width to cap x as the current |
| // mContentWidth may not be updated yet |
| x = Math.max(0, |
| (Math.min(maxWidth, x + viewWidth)) - viewWidth); |
| int top = contentToViewY(data.mTop); |
| int height = contentToViewDimension(data.mHeight); |
| int maxHeight = contentToViewDimension(data.mContentHeight); |
| int viewHeight = getViewHeight(); |
| int y = (int) (top + data.mYPercentInDoc * height - |
| data.mYPercentInView * viewHeight); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "showRectMsg=(top=" + top + ",height=" + |
| height + ",maxHeight=" + maxHeight + |
| ",viewHeight=" + viewHeight + ",y=" |
| + y + ",yPercentInDoc=" + data.mYPercentInDoc + |
| ",yPercentInView=" + data.mYPercentInView+ ")"); |
| } |
| // use the passing content height to cap y as the current |
| // mContentHeight may not be updated yet |
| y = Math.max(0, |
| (Math.min(maxHeight, y + viewHeight) - viewHeight)); |
| // We need to take into account the visible title height |
| // when scrolling since y is an absolute view position. |
| y = Math.max(0, y - getVisibleTitleHeight()); |
| scrollTo(x, y); |
| } |
| break; |
| |
| case CENTER_FIT_RECT: |
| centerFitRect((Rect)msg.obj); |
| break; |
| |
| case SET_SCROLLBAR_MODES: |
| mHorizontalScrollBarMode = msg.arg1; |
| mVerticalScrollBarMode = msg.arg2; |
| break; |
| |
| case SELECTION_STRING_CHANGED: |
| if (mAccessibilityInjector != null) { |
| String selectionString = (String) msg.obj; |
| mAccessibilityInjector.onSelectionStringChange(selectionString); |
| } |
| break; |
| |
| case SET_TOUCH_HIGHLIGHT_RECTS: |
| invalidate(mTouchHighlightRegion.getBounds()); |
| mTouchHighlightRegion.setEmpty(); |
| if (msg.obj != null) { |
| ArrayList<Rect> rects = (ArrayList<Rect>) msg.obj; |
| for (Rect rect : rects) { |
| Rect viewRect = contentToViewRect(rect); |
| // some sites, like stories in nytimes.com, set |
| // mouse event handler in the top div. It is not |
| // user friendly to highlight the div if it covers |
| // more than half of the screen. |
| if (viewRect.width() < getWidth() >> 1 |
| || viewRect.height() < getHeight() >> 1) { |
| mTouchHighlightRegion.union(viewRect); |
| invalidate(viewRect); |
| } else { |
| Log.w(LOGTAG, "Skip the huge selection rect:" |
| + viewRect); |
| } |
| } |
| } |
| break; |
| |
| case SAVE_WEBARCHIVE_FINISHED: |
| SaveWebArchiveMessage saveMessage = (SaveWebArchiveMessage)msg.obj; |
| if (saveMessage.mCallback != null) { |
| saveMessage.mCallback.onReceiveValue(saveMessage.mResultFile); |
| } |
| break; |
| |
| case SET_AUTOFILLABLE: |
| mAutoFillData = (WebViewCore.AutoFillData) msg.obj; |
| if (mWebTextView != null) { |
| mWebTextView.setAutoFillable(mAutoFillData.getQueryId()); |
| rebuildWebTextView(); |
| } |
| break; |
| |
| case AUTOFILL_COMPLETE: |
| if (mWebTextView != null) { |
| // Clear the WebTextView adapter when AutoFill finishes |
| // so that the drop down gets cleared. |
| mWebTextView.setAdapterCustom(null); |
| } |
| break; |
| |
| case SELECT_AT: |
| nativeSelectAt(msg.arg1, msg.arg2); |
| break; |
| |
| default: |
| super.handleMessage(msg); |
| break; |
| } |
| } |
| } |
| |
| void setNewPicture(final WebViewCore.DrawData draw, boolean updateBaseLayer) { |
| if (mNativeClass == 0) { |
| if (mDelaySetPicture != null) { |
| throw new IllegalStateException("Tried to setNewPicture with" |
| + " a delay picture already set! (memory leak)"); |
| } |
| // Not initialized yet, delay set |
| mDelaySetPicture = draw; |
| return; |
| } |
| WebViewCore.ViewState viewState = draw.mViewState; |
| boolean isPictureAfterFirstLayout = viewState != null; |
| if (updateBaseLayer) { |
| setBaseLayer(draw.mBaseLayer, draw.mInvalRegion, |
| getSettings().getShowVisualIndicator(), |
| isPictureAfterFirstLayout); |
| } |
| final Point viewSize = draw.mViewSize; |
| if (isPictureAfterFirstLayout) { |
| // Reset the last sent data here since dealing with new page. |
| mLastWidthSent = 0; |
| mZoomManager.onFirstLayout(draw); |
| if (!mDrawHistory) { |
| // Do not send the scroll event for this particular |
| // scroll message. Note that a scroll event may |
| // still be fired if the user scrolls before the |
| // message can be handled. |
| mSendScrollEvent = false; |
| setContentScrollTo(viewState.mScrollX, viewState.mScrollY); |
| mSendScrollEvent = true; |
| |
| // As we are on a new page, remove the WebTextView. This |
| // is necessary for page loads driven by webkit, and in |
| // particular when the user was on a password field, so |
| // the WebTextView was visible. |
| clearTextEntry(); |
| } |
| } |
| |
| // We update the layout (i.e. request a layout from the |
| // view system) if the last view size that we sent to |
| // WebCore matches the view size of the picture we just |
| // received in the fixed dimension. |
| final boolean updateLayout = viewSize.x == mLastWidthSent |
| && viewSize.y == mLastHeightSent; |
| // Don't send scroll event for picture coming from webkit, |
| // since the new picture may cause a scroll event to override |
| // the saved history scroll position. |
| mSendScrollEvent = false; |
| recordNewContentSize(draw.mContentSize.x, |
| draw.mContentSize.y, updateLayout); |
| mSendScrollEvent = true; |
| if (DebugFlags.WEB_VIEW) { |
| Rect b = draw.mInvalRegion.getBounds(); |
| Log.v(LOGTAG, "NEW_PICTURE_MSG_ID {" + |
| b.left+","+b.top+","+b.right+","+b.bottom+"}"); |
| } |
| invalidateContentRect(draw.mInvalRegion.getBounds()); |
| |
| if (mPictureListener != null) { |
| mPictureListener.onNewPicture(WebView.this, capturePicture()); |
| } |
| |
| // update the zoom information based on the new picture |
| mZoomManager.onNewPicture(draw); |
| |
| if (draw.mFocusSizeChanged && inEditingMode()) { |
| mFocusSizeChanged = true; |
| } |
| if (isPictureAfterFirstLayout) { |
| mViewManager.postReadyToDrawAll(); |
| } |
| } |
| |
| /** |
| * Used when receiving messages for REQUEST_KEYBOARD_WITH_SELECTION_MSG_ID |
| * and UPDATE_TEXT_SELECTION_MSG_ID. Update the selection of WebTextView. |
| */ |
| private void updateTextSelectionFromMessage(int nodePointer, |
| int textGeneration, WebViewCore.TextSelectionData data) { |
| if (inEditingMode() |
| && mWebTextView.isSameTextField(nodePointer) |
| && textGeneration == mTextGeneration) { |
| mWebTextView.setSelectionFromWebKit(data.mStart, data.mEnd); |
| } |
| } |
| |
| // Class used to use a dropdown for a <select> element |
| private class InvokeListBox implements Runnable { |
| // Whether the listbox allows multiple selection. |
| private boolean mMultiple; |
| // Passed in to a list with multiple selection to tell |
| // which items are selected. |
| private int[] mSelectedArray; |
| // Passed in to a list with single selection to tell |
| // where the initial selection is. |
| private int mSelection; |
| |
| private Container[] mContainers; |
| |
| // Need these to provide stable ids to my ArrayAdapter, |
| // which normally does not have stable ids. (Bug 1250098) |
| private class Container extends Object { |
| /** |
| * Possible values for mEnabled. Keep in sync with OptionStatus in |
| * WebViewCore.cpp |
| */ |
| final static int OPTGROUP = -1; |
| final static int OPTION_DISABLED = 0; |
| final static int OPTION_ENABLED = 1; |
| |
| String mString; |
| int mEnabled; |
| int mId; |
| |
| @Override |
| public String toString() { |
| return mString; |
| } |
| } |
| |
| /** |
| * Subclass ArrayAdapter so we can disable OptionGroupLabels, |
| * and allow filtering. |
| */ |
| private class MyArrayListAdapter extends ArrayAdapter<Container> { |
| public MyArrayListAdapter() { |
| super(mContext, |
| mMultiple ? com.android.internal.R.layout.select_dialog_multichoice : |
| com.android.internal.R.layout.webview_select_singlechoice, |
| mContainers); |
| } |
| |
| @Override |
| public View getView(int position, View convertView, |
| ViewGroup parent) { |
| // Always pass in null so that we will get a new CheckedTextView |
| // Otherwise, an item which was previously used as an <optgroup> |
| // element (i.e. has no check), could get used as an <option> |
| // element, which needs a checkbox/radio, but it would not have |
| // one. |
| convertView = super.getView(position, null, parent); |
| Container c = item(position); |
| if (c != null && Container.OPTION_ENABLED != c.mEnabled) { |
| // ListView does not draw dividers between disabled and |
| // enabled elements. Use a LinearLayout to provide dividers |
| LinearLayout layout = new LinearLayout(mContext); |
| layout.setOrientation(LinearLayout.VERTICAL); |
| if (position > 0) { |
| View dividerTop = new View(mContext); |
| dividerTop.setBackgroundResource( |
| android.R.drawable.divider_horizontal_bright); |
| layout.addView(dividerTop); |
| } |
| |
| if (Container.OPTGROUP == c.mEnabled) { |
| // Currently select_dialog_multichoice uses CheckedTextViews. |
| // If that changes, the class cast will no longer be valid. |
| if (mMultiple) { |
| Assert.assertTrue(convertView instanceof CheckedTextView); |
| ((CheckedTextView) convertView).setCheckMarkDrawable(null); |
| } |
| } else { |
| // c.mEnabled == Container.OPTION_DISABLED |
| // Draw the disabled element in a disabled state. |
| convertView.setEnabled(false); |
| } |
| |
| layout.addView(convertView); |
| if (position < getCount() - 1) { |
| View dividerBottom = new View(mContext); |
| dividerBottom.setBackgroundResource( |
| android.R.drawable.divider_horizontal_bright); |
| layout.addView(dividerBottom); |
| } |
| return layout; |
| } |
| return convertView; |
| } |
| |
| @Override |
| public boolean hasStableIds() { |
| // AdapterView's onChanged method uses this to determine whether |
| // to restore the old state. Return false so that the old (out |
| // of date) state does not replace the new, valid state. |
| return false; |
| } |
| |
| private Container item(int position) { |
| if (position < 0 || position >= getCount()) { |
| return null; |
| } |
| return (Container) getItem(position); |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| Container item = item(position); |
| if (item == null) { |
| return -1; |
| } |
| return item.mId; |
| } |
| |
| @Override |
| public boolean areAllItemsEnabled() { |
| return false; |
| } |
| |
| @Override |
| public boolean isEnabled(int position) { |
| Container item = item(position); |
| if (item == null) { |
| return false; |
| } |
| return Container.OPTION_ENABLED == item.mEnabled; |
| } |
| } |
| |
| private InvokeListBox(String[] array, int[] enabled, int[] selected) { |
| mMultiple = true; |
| mSelectedArray = selected; |
| |
| int length = array.length; |
| mContainers = new Container[length]; |
| for (int i = 0; i < length; i++) { |
| mContainers[i] = new Container(); |
| mContainers[i].mString = array[i]; |
| mContainers[i].mEnabled = enabled[i]; |
| mContainers[i].mId = i; |
| } |
| } |
| |
| private InvokeListBox(String[] array, int[] enabled, int selection) { |
| mSelection = selection; |
| mMultiple = false; |
| |
| int length = array.length; |
| mContainers = new Container[length]; |
| for (int i = 0; i < length; i++) { |
| mContainers[i] = new Container(); |
| mContainers[i].mString = array[i]; |
| mContainers[i].mEnabled = enabled[i]; |
| mContainers[i].mId = i; |
| } |
| } |
| |
| /* |
| * Whenever the data set changes due to filtering, this class ensures |
| * that the checked item remains checked. |
| */ |
| private class SingleDataSetObserver extends DataSetObserver { |
| private long mCheckedId; |
| private ListView mListView; |
| private Adapter mAdapter; |
| |
| /* |
| * Create a new observer. |
| * @param id The ID of the item to keep checked. |
| * @param l ListView for getting and clearing the checked states |
| * @param a Adapter for getting the IDs |
| */ |
| public SingleDataSetObserver(long id, ListView l, Adapter a) { |
| mCheckedId = id; |
| mListView = l; |
| mAdapter = a; |
| } |
| |
| @Override |
| public void onChanged() { |
| // The filter may have changed which item is checked. Find the |
| // item that the ListView thinks is checked. |
| int position = mListView.getCheckedItemPosition(); |
| long id = mAdapter.getItemId(position); |
| if (mCheckedId != id) { |
| // Clear the ListView's idea of the checked item, since |
| // it is incorrect |
| mListView.clearChoices(); |
| // Search for mCheckedId. If it is in the filtered list, |
| // mark it as checked |
| int count = mAdapter.getCount(); |
| for (int i = 0; i < count; i++) { |
| if (mAdapter.getItemId(i) == mCheckedId) { |
| mListView.setItemChecked(i, true); |
| break; |
| } |
| } |
| } |
| } |
| } |
| |
| public void run() { |
| final ListView listView = (ListView) LayoutInflater.from(mContext) |
| .inflate(com.android.internal.R.layout.select_dialog, null); |
| final MyArrayListAdapter adapter = new MyArrayListAdapter(); |
| AlertDialog.Builder b = new AlertDialog.Builder(mContext) |
| .setView(listView).setCancelable(true) |
| .setInverseBackgroundForced(true); |
| |
| if (mMultiple) { |
| b.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { |
| public void onClick(DialogInterface dialog, int which) { |
| mWebViewCore.sendMessage( |
| EventHub.LISTBOX_CHOICES, |
| adapter.getCount(), 0, |
| listView.getCheckedItemPositions()); |
| }}); |
| b.setNegativeButton(android.R.string.cancel, |
| new DialogInterface.OnClickListener() { |
| public void onClick(DialogInterface dialog, int which) { |
| mWebViewCore.sendMessage( |
| EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); |
| }}); |
| } |
| mListBoxDialog = b.create(); |
| listView.setAdapter(adapter); |
| listView.setFocusableInTouchMode(true); |
| // There is a bug (1250103) where the checks in a ListView with |
| // multiple items selected are associated with the positions, not |
| // the ids, so the items do not properly retain their checks when |
| // filtered. Do not allow filtering on multiple lists until |
| // that bug is fixed. |
| |
| listView.setTextFilterEnabled(!mMultiple); |
| if (mMultiple) { |
| listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); |
| int length = mSelectedArray.length; |
| for (int i = 0; i < length; i++) { |
| listView.setItemChecked(mSelectedArray[i], true); |
| } |
| } else { |
| listView.setOnItemClickListener(new OnItemClickListener() { |
| public void onItemClick(AdapterView<?> parent, View v, |
| int position, long id) { |
| // Rather than sending the message right away, send it |
| // after the page regains focus. |
| mListBoxMessage = Message.obtain(null, |
| EventHub.SINGLE_LISTBOX_CHOICE, (int) id, 0); |
| mListBoxDialog.dismiss(); |
| mListBoxDialog = null; |
| } |
| }); |
| if (mSelection != -1) { |
| listView.setSelection(mSelection); |
| listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); |
| listView.setItemChecked(mSelection, true); |
| DataSetObserver observer = new SingleDataSetObserver( |
| adapter.getItemId(mSelection), listView, adapter); |
| adapter.registerDataSetObserver(observer); |
| } |
| } |
| mListBoxDialog.setOnCancelListener(new DialogInterface.OnCancelListener() { |
| public void onCancel(DialogInterface dialog) { |
| mWebViewCore.sendMessage( |
| EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); |
| mListBoxDialog = null; |
| } |
| }); |
| mListBoxDialog.show(); |
| } |
| } |
| |
| private Message mListBoxMessage; |
| |
| /* |
| * Request a dropdown menu for a listbox with multiple selection. |
| * |
| * @param array Labels for the listbox. |
| * @param enabledArray State for each element in the list. See static |
| * integers in Container class. |
| * @param selectedArray Which positions are initally selected. |
| */ |
| void requestListBox(String[] array, int[] enabledArray, int[] |
| selectedArray) { |
| mPrivateHandler.post( |
| new InvokeListBox(array, enabledArray, selectedArray)); |
| } |
| |
| /* |
| * Request a dropdown menu for a listbox with single selection or a single |
| * <select> element. |
| * |
| * @param array Labels for the listbox. |
| * @param enabledArray State for each element in the list. See static |
| * integers in Container class. |
| * @param selection Which position is initally selected. |
| */ |
| void requestListBox(String[] array, int[] enabledArray, int selection) { |
| mPrivateHandler.post( |
| new InvokeListBox(array, enabledArray, selection)); |
| } |
| |
| // called by JNI |
| private void sendMoveFocus(int frame, int node) { |
| mWebViewCore.sendMessage(EventHub.SET_MOVE_FOCUS, |
| new WebViewCore.CursorData(frame, node, 0, 0)); |
| } |
| |
| // called by JNI |
| private void sendMoveMouse(int frame, int node, int x, int y) { |
| mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, |
| new WebViewCore.CursorData(frame, node, x, y)); |
| } |
| |
| /* |
| * Send a mouse move event to the webcore thread. |
| * |
| * @param removeFocus Pass true to remove the WebTextView, if present. |
| * @param stopPaintingCaret Stop drawing the blinking caret if true. |
| * called by JNI |
| */ |
| @SuppressWarnings("unused") |
| private void sendMoveMouseIfLatest(boolean removeFocus, boolean stopPaintingCaret) { |
| if (removeFocus) { |
| clearTextEntry(); |
| } |
| mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE_IF_LATEST, |
| stopPaintingCaret ? 1 : 0, 0, |
| cursorData()); |
| } |
| |
| /** |
| * Called by JNI to send a message to the webcore thread that the user |
| * touched the webpage. |
| * @param touchGeneration Generation number of the touch, to ignore touches |
| * after a new one has been generated. |
| * @param frame Pointer to the frame holding the node that was touched. |
| * @param node Pointer to the node touched. |
| * @param x x-position of the touch. |
| * @param y y-position of the touch. |
| */ |
| private void sendMotionUp(int touchGeneration, |
| int frame, int node, int x, int y) { |
| WebViewCore.TouchUpData touchUpData = new WebViewCore.TouchUpData(); |
| touchUpData.mMoveGeneration = touchGeneration; |
| touchUpData.mFrame = frame; |
| touchUpData.mNode = node; |
| touchUpData.mX = x; |
| touchUpData.mY = y; |
| touchUpData.mNativeLayer = nativeScrollableLayer( |
| x, y, touchUpData.mNativeLayerRect, null); |
| mWebViewCore.sendMessage(EventHub.TOUCH_UP, touchUpData); |
| } |
| |
| |
| private int getScaledMaxXScroll() { |
| int width; |
| if (mHeightCanMeasure == false) { |
| width = getViewWidth() / 4; |
| } else { |
| Rect visRect = new Rect(); |
| calcOurVisibleRect(visRect); |
| width = visRect.width() / 2; |
| } |
| // FIXME the divisor should be retrieved from somewhere |
| return viewToContentX(width); |
| } |
| |
| private int getScaledMaxYScroll() { |
| int height; |
| if (mHeightCanMeasure == false) { |
| height = getViewHeight() / 4; |
| } else { |
| Rect visRect = new Rect(); |
| calcOurVisibleRect(visRect); |
| height = visRect.height() / 2; |
| } |
| // FIXME the divisor should be retrieved from somewhere |
| // the closest thing today is hard-coded into ScrollView.java |
| // (from ScrollView.java, line 363) int maxJump = height/2; |
| return Math.round(height * mZoomManager.getInvScale()); |
| } |
| |
| /** |
| * Called by JNI to invalidate view |
| */ |
| private void viewInvalidate() { |
| invalidate(); |
| } |
| |
| /** |
| * Pass the key directly to the page. This assumes that |
| * nativePageShouldHandleShiftAndArrows() returned true. |
| */ |
| private void letPageHandleNavKey(int keyCode, long time, boolean down, int metaState) { |
| int keyEventAction; |
| int eventHubAction; |
| if (down) { |
| keyEventAction = KeyEvent.ACTION_DOWN; |
| eventHubAction = EventHub.KEY_DOWN; |
| playSoundEffect(keyCodeToSoundsEffect(keyCode)); |
| } else { |
| keyEventAction = KeyEvent.ACTION_UP; |
| eventHubAction = EventHub.KEY_UP; |
| } |
| |
| KeyEvent event = new KeyEvent(time, time, keyEventAction, keyCode, |
| 1, (metaState & KeyEvent.META_SHIFT_ON) |
| | (metaState & KeyEvent.META_ALT_ON) |
| | (metaState & KeyEvent.META_SYM_ON) |
| , KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0); |
| mWebViewCore.sendMessage(eventHubAction, event); |
| } |
| |
| // return true if the key was handled |
| private boolean navHandledKey(int keyCode, int count, boolean noScroll, |
| long time) { |
| if (mNativeClass == 0) { |
| return false; |
| } |
| mInitialHitTestResult = null; |
| mLastCursorTime = time; |
| mLastCursorBounds = nativeGetCursorRingBounds(); |
| boolean keyHandled |
| = nativeMoveCursor(keyCode, count, noScroll) == false; |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "navHandledKey mLastCursorBounds=" + mLastCursorBounds |
| + " mLastCursorTime=" + mLastCursorTime |
| + " handled=" + keyHandled); |
| } |
| if (keyHandled == false) { |
| return keyHandled; |
| } |
| Rect contentCursorRingBounds = nativeGetCursorRingBounds(); |
| if (contentCursorRingBounds.isEmpty()) return keyHandled; |
| Rect viewCursorRingBounds = contentToViewRect(contentCursorRingBounds); |
| // set last touch so that context menu related functions will work |
| mLastTouchX = (viewCursorRingBounds.left + viewCursorRingBounds.right) / 2; |
| mLastTouchY = (viewCursorRingBounds.top + viewCursorRingBounds.bottom) / 2; |
| if (mHeightCanMeasure == false) { |
| return keyHandled; |
| } |
| Rect visRect = new Rect(); |
| calcOurVisibleRect(visRect); |
| Rect outset = new Rect(visRect); |
| int maxXScroll = visRect.width() / 2; |
| int maxYScroll = visRect.height() / 2; |
| outset.inset(-maxXScroll, -maxYScroll); |
| if (Rect.intersects(outset, viewCursorRingBounds) == false) { |
| return keyHandled; |
| } |
| // FIXME: Necessary because ScrollView/ListView do not scroll left/right |
| int maxH = Math.min(viewCursorRingBounds.right - visRect.right, |
| maxXScroll); |
| if (maxH > 0) { |
| pinScrollBy(maxH, 0, true, 0); |
| } else { |
| maxH = Math.max(viewCursorRingBounds.left - visRect.left, |
| -maxXScroll); |
| if (maxH < 0) { |
| pinScrollBy(maxH, 0, true, 0); |
| } |
| } |
| if (mLastCursorBounds.isEmpty()) return keyHandled; |
| if (mLastCursorBounds.equals(contentCursorRingBounds)) { |
| return keyHandled; |
| } |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "navHandledKey contentCursorRingBounds=" |
| + contentCursorRingBounds); |
| } |
| requestRectangleOnScreen(viewCursorRingBounds); |
| return keyHandled; |
| } |
| |
| /** |
| * @return Whether accessibility script has been injected. |
| */ |
| private boolean accessibilityScriptInjected() { |
| // TODO: Maybe the injected script should announce its presence in |
| // the page meta-tag so the nativePageShouldHandleShiftAndArrows |
| // will check that as one of the conditions it looks for |
| return mAccessibilityScriptInjected; |
| } |
| |
| /** |
| * Set the background color. It's white by default. Pass |
| * zero to make the view transparent. |
| * @param color the ARGB color described by Color.java |
| */ |
| @Override |
| public void setBackgroundColor(int color) { |
| mBackgroundColor = color; |
| mWebViewCore.sendMessage(EventHub.SET_BACKGROUND_COLOR, color); |
| } |
| |
| /** |
| * @deprecated This method is now obsolete. |
| */ |
| @Deprecated |
| public void debugDump() { |
| checkThread(); |
| nativeDebugDump(); |
| mWebViewCore.sendMessage(EventHub.DUMP_NAVTREE); |
| } |
| |
| /** |
| * Draw the HTML page into the specified canvas. This call ignores any |
| * view-specific zoom, scroll offset, or other changes. It does not draw |
| * any view-specific chrome, such as progress or URL bars. |
| * |
| * @hide only needs to be accessible to Browser and testing |
| */ |
| public void drawPage(Canvas canvas) { |
| nativeDraw(canvas, 0, 0, false); |
| } |
| |
| /** |
| * Enable the communication b/t the webView and VideoViewProxy |
| * |
| * @hide only used by the Browser |
| */ |
| public void setHTML5VideoViewProxy(HTML5VideoViewProxy proxy) { |
| mHTML5VideoViewProxy = proxy; |
| } |
| |
| /** |
| * Enable expanded tiles bound for smoother scrolling. |
| * |
| * @hide only used by the Browser |
| */ |
| public void setExpandedTileBounds(boolean enabled) { |
| nativeSetExpandedTileBounds(enabled); |
| } |
| |
| /** |
| * Set the time to wait between passing touches to WebCore. See also the |
| * TOUCH_SENT_INTERVAL member for further discussion. |
| * |
| * @hide This is only used by the DRT test application. |
| */ |
| public void setTouchInterval(int interval) { |
| mCurrentTouchInterval = interval; |
| } |
| |
| /** |
| * Update our cache with updatedText. |
| * @param updatedText The new text to put in our cache. |
| * @hide |
| */ |
| protected void updateCachedTextfield(String updatedText) { |
| // Also place our generation number so that when we look at the cache |
| // we recognize that it is up to date. |
| nativeUpdateCachedTextfield(updatedText, mTextGeneration); |
| } |
| |
| /*package*/ void autoFillForm(int autoFillQueryId) { |
| mWebViewCore.sendMessage(EventHub.AUTOFILL_FORM, autoFillQueryId, /* unused */0); |
| } |
| |
| /* package */ ViewManager getViewManager() { |
| return mViewManager; |
| } |
| |
| private static void checkThread() { |
| if (Looper.myLooper() != Looper.getMainLooper()) { |
| RuntimeException exception = new RuntimeException( |
| "A WebView method was called on thread '" + |
| Thread.currentThread().getName() + "'. " + |
| "All WebView methods must be called on the UI thread. " + |
| "Future versions of WebView may not support use on other threads."); |
| Log.e(LOGTAG, Log.getStackTraceString(exception)); |
| StrictMode.onWebViewMethodCalledOnWrongThread(exception); |
| } |
| } |
| |
| private native int nativeCacheHitFramePointer(); |
| private native boolean nativeCacheHitIsPlugin(); |
| private native Rect nativeCacheHitNodeBounds(); |
| private native int nativeCacheHitNodePointer(); |
| /* package */ native void nativeClearCursor(); |
| private native void nativeCreate(int ptr, String drawableDir, AssetManager am); |
| private native int nativeCursorFramePointer(); |
| private native Rect nativeCursorNodeBounds(); |
| private native int nativeCursorNodePointer(); |
| private native boolean nativeCursorIntersects(Rect visibleRect); |
| private native boolean nativeCursorIsAnchor(); |
| private native boolean nativeCursorIsTextInput(); |
| private native Point nativeCursorPosition(); |
| private native String nativeCursorText(); |
| /** |
| * Returns true if the native cursor node says it wants to handle key events |
| * (ala plugins). This can only be called if mNativeClass is non-zero! |
| */ |
| private native boolean nativeCursorWantsKeyEvents(); |
| private native void nativeDebugDump(); |
| private native void nativeDestroy(); |
| |
| /** |
| * Draw the picture set with a background color and extra. If |
| * "splitIfNeeded" is true and the return value is not 0, the return value |
| * MUST be passed to WebViewCore with SPLIT_PICTURE_SET message so that the |
| * native allocation can be freed. |
| */ |
| private native int nativeDraw(Canvas canvas, int color, int extra, |
| boolean splitIfNeeded); |
| private native void nativeDumpDisplayTree(String urlOrNull); |
| private native boolean nativeEvaluateLayersAnimations(); |
| private native int nativeGetDrawGLFunction(Rect rect, Rect viewRect, |
| float scale, int extras); |
| private native void nativeUpdateDrawGLFunction(Rect rect, Rect viewRect); |
| private native void nativeExtendSelection(int x, int y); |
| private native int nativeFindAll(String findLower, String findUpper, |
| boolean sameAsLastSearch); |
| private native void nativeFindNext(boolean forward); |
| /* package */ native int nativeFocusCandidateFramePointer(); |
| /* package */ native boolean nativeFocusCandidateHasNextTextfield(); |
| /* package */ native boolean nativeFocusCandidateIsPassword(); |
| private native boolean nativeFocusCandidateIsRtlText(); |
| private native boolean nativeFocusCandidateIsTextInput(); |
| /* package */ native int nativeFocusCandidateMaxLength(); |
| /* package */ native boolean nativeFocusCandidateIsAutoComplete(); |
| /* package */ native String nativeFocusCandidateName(); |
| private native Rect nativeFocusCandidateNodeBounds(); |
| /** |
| * @return A Rect with left, top, right, bottom set to the corresponding |
| * padding values in the focus candidate, if it is a textfield/textarea with |
| * a style. Otherwise return null. This is not actually a rectangle; Rect |
| * is being used to pass four integers. |
| */ |
| private native Rect nativeFocusCandidatePaddingRect(); |
| /* package */ native int nativeFocusCandidatePointer(); |
| private native String nativeFocusCandidateText(); |
| /* package */ native float nativeFocusCandidateTextSize(); |
| /* package */ native int nativeFocusCandidateLineHeight(); |
| /** |
| * Returns an integer corresponding to WebView.cpp::type. |
| * See WebTextView.setType() |
| */ |
| private native int nativeFocusCandidateType(); |
| private native boolean nativeFocusIsPlugin(); |
| private native Rect nativeFocusNodeBounds(); |
| /* package */ native int nativeFocusNodePointer(); |
| private native Rect nativeGetCursorRingBounds(); |
| private native String nativeGetSelection(); |
| private native boolean nativeHasCursorNode(); |
| private native boolean nativeHasFocusNode(); |
| private native void nativeHideCursor(); |
| private native boolean nativeHitSelection(int x, int y); |
| private native String nativeImageURI(int x, int y); |
| private native void nativeInstrumentReport(); |
| private native Rect nativeLayerBounds(int layer); |
| /* package */ native boolean nativeMoveCursorToNextTextInput(); |
| // return true if the page has been scrolled |
| private native boolean nativeMotionUp(int x, int y, int slop); |
| // returns false if it handled the key |
| private native boolean nativeMoveCursor(int keyCode, int count, |
| boolean noScroll); |
| private native int nativeMoveGeneration(); |
| private native void nativeMoveSelection(int x, int y); |
| /** |
| * @return true if the page should get the shift and arrow keys, rather |
| * than select text/navigation. |
| * |
| * If the focus is a plugin, or if the focus and cursor match and are |
| * a contentEditable element, then the page should handle these keys. |
| */ |
| private native boolean nativePageShouldHandleShiftAndArrows(); |
| private native boolean nativePointInNavCache(int x, int y, int slop); |
| // Like many other of our native methods, you must make sure that |
| // mNativeClass is not null before calling this method. |
| private native void nativeRecordButtons(boolean focused, |
| boolean pressed, boolean invalidate); |
| private native void nativeResetSelection(); |
| private native Point nativeSelectableText(); |
| private native void nativeSelectAll(); |
| private native void nativeSelectBestAt(Rect rect); |
| private native void nativeSelectAt(int x, int y); |
| private native int nativeSelectionX(); |
| private native int nativeSelectionY(); |
| private native int nativeFindIndex(); |
| private native void nativeSetExtendSelection(); |
| private native void nativeSetFindIsEmpty(); |
| private native void nativeSetFindIsUp(boolean isUp); |
| private native void nativeSetHeightCanMeasure(boolean measure); |
| private native void nativeSetBaseLayer(int layer, Region invalRegion, |
| boolean showVisualIndicator, boolean isPictureAfterFirstLayout); |
| private native int nativeGetBaseLayer(); |
| private native void nativeShowCursorTimed(); |
| private native void nativeReplaceBaseContent(int content); |
| private native void nativeCopyBaseContentToPicture(Picture pict); |
| private native boolean nativeHasContent(); |
| private native void nativeSetSelectionPointer(boolean set, |
| float scale, int x, int y); |
| private native boolean nativeStartSelection(int x, int y); |
| private native void nativeStopGL(); |
| private native Rect nativeSubtractLayers(Rect content); |
| private native int nativeTextGeneration(); |
| // Never call this version except by updateCachedTextfield(String) - |
| // we always want to pass in our generation number. |
| private native void nativeUpdateCachedTextfield(String updatedText, |
| int generation); |
| private native boolean nativeWordSelection(int x, int y); |
| // return NO_LEFTEDGE means failure. |
| static final int NO_LEFTEDGE = -1; |
| native int nativeGetBlockLeftEdge(int x, int y, float scale); |
| |
| private native void nativeSetExpandedTileBounds(boolean enabled); |
| |
| // Returns a pointer to the scrollable LayerAndroid at the given point. |
| private native int nativeScrollableLayer(int x, int y, Rect scrollRect, |
| Rect scrollBounds); |
| /** |
| * Scroll the specified layer. |
| * @param layer Id of the layer to scroll, as determined by nativeScrollableLayer. |
| * @param newX Destination x position to which to scroll. |
| * @param newY Destination y position to which to scroll. |
| * @return True if the layer is successfully scrolled. |
| */ |
| private native boolean nativeScrollLayer(int layer, int newX, int newY); |
| } |