| /* |
| * 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.app.AlertDialog; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.Intent; |
| import android.content.DialogInterface.OnCancelListener; |
| import android.database.DataSetObserver; |
| import android.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.Paint; |
| import android.graphics.Path; |
| import android.graphics.Picture; |
| import android.graphics.Point; |
| import android.graphics.Rect; |
| import android.graphics.Region; |
| import android.net.http.SslCertificate; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.os.ServiceManager; |
| import android.os.SystemClock; |
| import android.provider.Checkin; |
| import android.text.IClipboard; |
| 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.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.MotionEvent; |
| 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.animation.AlphaAnimation; |
| import android.view.inputmethod.InputMethodManager; |
| import android.webkit.WebTextView.AutoCompleteAdapter; |
| import android.webkit.WebViewCore.EventHub; |
| import android.widget.AbsoluteLayout; |
| import android.widget.Adapter; |
| import android.widget.AdapterView; |
| import android.widget.ArrayAdapter; |
| import android.widget.FrameLayout; |
| import android.widget.ImageView; |
| import android.widget.ListView; |
| import android.widget.Scroller; |
| import android.widget.Toast; |
| import android.widget.ZoomButtonsController; |
| import android.widget.ZoomControls; |
| import android.widget.AdapterView.OnItemClickListener; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.net.URLDecoder; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * <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 <var>INTERNET</var> permissions to your |
| * Android Manifest file:</p> |
| * <pre><uses-permission android:name="android.permission.INTERNET" /></pre> |
| * |
| * <p>This must be a child of the <code><manifest></code> element.</p> |
| * |
| * <h3>Basic usage</h3> |
| * |
| * <p>By default, a WebView provides no browser-like widgets, does not |
| * enable JavaScript and errors will be 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 fully blown web browser, then you probably want to |
| * invoke the Browser application with your URL rather than show it |
| * with a WebView. See {@link android.content.Intent} for more information.</p> |
| * |
| * <pre class="prettyprint"> |
| * WebView webview = new WebView(this); |
| * setContentView(webview); |
| * |
| * // 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/"); |
| * |
| * // Of course you can also load from any string: |
| * String summary = "<html><body>You scored <b>192</b> points.</body></html>"; |
| * webview.loadData(summary, "text/html", "utf-8"); |
| * // ... although note that there are restrictions on what this HTML can do. |
| * // See the JavaDocs for loadData and 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. |
| * </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.</li> |
| * <li>Via the {@link android.webkit.WebSettings} class, which contains |
| * miscellaneous configuration. </li> |
| * <li>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 |
| * applications 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 |
| * WebChromeClient to provide your own behaviour for opening multiple windows, |
| * and render them in whatever manner you want.</p> |
| * |
| * <p>Standard behavior for an Activity is to be destroyed and |
| * recreated when the devices orientation is changed. This will cause |
| * the WebView to reload the current page. If you don't want that, you |
| * can set your Activity to handle the orientation and keyboardHidden |
| * changes, and then just leave the WebView alone. It'll automatically |
| * re-orient itself as appropriate.</p> |
| */ |
| public class WebView extends AbsoluteLayout |
| implements ViewTreeObserver.OnGlobalFocusChangeListener, |
| ViewGroup.OnHierarchyChangeListener { |
| |
| // 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; |
| |
| static final String LOGTAG = "webview"; |
| |
| static class ScaleLimitData { |
| int mMinScale; |
| int mMaxScale; |
| } |
| |
| private static class ExtendedZoomControls extends FrameLayout { |
| public ExtendedZoomControls(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| LayoutInflater inflater = (LayoutInflater) |
| context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); |
| inflater.inflate(com.android.internal.R.layout.zoom_magnify, this, true); |
| mPlusMinusZoomControls = (ZoomControls) findViewById( |
| com.android.internal.R.id.zoomControls); |
| mZoomMagnify = (ImageView) findViewById(com.android.internal.R.id.zoomMagnify); |
| } |
| |
| public void show(boolean showZoom, boolean canZoomOut) { |
| mPlusMinusZoomControls.setVisibility( |
| showZoom ? View.VISIBLE : View.GONE); |
| mZoomMagnify.setVisibility(canZoomOut ? View.VISIBLE : View.GONE); |
| fade(View.VISIBLE, 0.0f, 1.0f); |
| } |
| |
| public void hide() { |
| fade(View.GONE, 1.0f, 0.0f); |
| } |
| |
| private void fade(int visibility, float startAlpha, float endAlpha) { |
| AlphaAnimation anim = new AlphaAnimation(startAlpha, endAlpha); |
| anim.setDuration(500); |
| startAnimation(anim); |
| setVisibility(visibility); |
| } |
| |
| public void setIsZoomMagnifyEnabled(boolean isEnabled) { |
| mZoomMagnify.setEnabled(isEnabled); |
| } |
| |
| public boolean hasFocus() { |
| return mPlusMinusZoomControls.hasFocus() || mZoomMagnify.hasFocus(); |
| } |
| |
| public void setOnZoomInClickListener(OnClickListener listener) { |
| mPlusMinusZoomControls.setOnZoomInClickListener(listener); |
| } |
| |
| public void setOnZoomOutClickListener(OnClickListener listener) { |
| mPlusMinusZoomControls.setOnZoomOutClickListener(listener); |
| } |
| |
| public void setOnZoomMagnifyClickListener(OnClickListener listener) { |
| mZoomMagnify.setOnClickListener(listener); |
| } |
| |
| ZoomControls mPlusMinusZoomControls; |
| ImageView mZoomMagnify; |
| } |
| |
| /** |
| * 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; |
| |
| // Used by WebViewCore to create child views. |
| /* package */ final ViewManager mViewManager; |
| |
| // The list of loaded plugins. |
| private static PluginList sPluginList; |
| |
| /** |
| * Position of the last touch event. |
| */ |
| private float mLastTouchX; |
| private float mLastTouchY; |
| |
| /** |
| * 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. |
| */ |
| private static final int TOUCH_SENT_INTERVAL = 50; |
| |
| /** |
| * Helper class to get velocity for fling |
| */ |
| VelocityTracker mVelocityTracker; |
| private int mMaximumFling; |
| |
| /** |
| * 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_DOUBLECLICK_MODE = 6; |
| private static final int TOUCH_DONE_MODE = 7; |
| private static final int TOUCH_SELECT_MODE = 8; |
| // touch mode values specific to scale+scroll |
| private static final int FIRST_SCROLL_ZOOM = 9; |
| private static final int SCROLL_ZOOM_ANIMATION_IN = 9; |
| private static final int SCROLL_ZOOM_ANIMATION_OUT = 10; |
| private static final int SCROLL_ZOOM_OUT = 11; |
| private static final int LAST_SCROLL_ZOOM = 11; |
| // end of touch mode values specific to scale+scroll |
| |
| // Whether to forward the touch events to WebCore |
| private boolean mForwardTouchEvents = false; |
| |
| // Whether to prevent drag during touch. The initial value depends on |
| // mForwardTouchEvents. If WebCore wants touch events, we assume it will |
| // take control of touch events unless it says no for touch down event. |
| private boolean mPreventDrag; |
| |
| // Whether or not to draw the cursor ring. |
| private boolean mDrawCursorRing = true; |
| |
| // true if onPause has been called (and not onResume) |
| private boolean mIsPaused; |
| |
| /** |
| * Customizable constant |
| */ |
| // pre-computed square of ViewConfiguration.getScaledTouchSlop() |
| private int mTouchSlopSquare; |
| // 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; |
| // The time that the Zoom Controls are visible before fading away |
| private static final long ZOOM_CONTROLS_TIMEOUT = |
| ViewConfiguration.getZoomControlsTimeout(); |
| // 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; |
| |
| 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 Scroller mScroller; |
| |
| private boolean mWrapContent; |
| |
| /** |
| * 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 REQUEST_FORM_DATA = 6; |
| private static final int SWITCH_TO_CLICK = 7; |
| private static final int RESUME_WEBCORE_UPDATE = 8; |
| |
| //! arg1=x, arg2=y |
| static final int SCROLL_TO_MSG_ID = 10; |
| static final int SCROLL_BY_MSG_ID = 11; |
| //! arg1=x, arg2=y |
| static final int SPAWN_SCROLL_TO_MSG_ID = 12; |
| //! arg1=x, arg2=y |
| static final int SYNC_SCROLL_TO_MSG_ID = 13; |
| static final int NEW_PICTURE_MSG_ID = 14; |
| static final int UPDATE_TEXT_ENTRY_MSG_ID = 15; |
| static final int WEBCORE_INITIALIZED_MSG_ID = 16; |
| static final int UPDATE_TEXTFIELD_TEXT_MSG_ID = 17; |
| static final int DID_FIRST_LAYOUT_MSG_ID = 18; |
| static final int MOVE_OUT_OF_PLUGIN = 19; |
| static final int CLEAR_TEXT_ENTRY = 20; |
| |
| static final int UPDATE_CLIPBOARD = 22; |
| static final int LONG_PRESS_CENTER = 23; |
| static final int PREVENT_TOUCH_ID = 24; |
| static final int WEBCORE_NEED_TOUCH_EVENTS = 25; |
| // obj=Rect in doc coordinates |
| static final int INVAL_RECT_MSG_ID = 26; |
| static final int REQUEST_KEYBOARD = 27; |
| |
| static final String[] HandlerDebugString = { |
| "REMEMBER_PASSWORD", // = 1; |
| "NEVER_REMEMBER_PASSWORD", // = 2; |
| "SWITCH_TO_SHORTPRESS", // = 3; |
| "SWITCH_TO_LONGPRESS", // = 4; |
| "5", |
| "REQUEST_FORM_DATA", // = 6; |
| "SWITCH_TO_CLICK", // = 7; |
| "RESUME_WEBCORE_UPDATE", // = 8; |
| "9", |
| "SCROLL_TO_MSG_ID", // = 10; |
| "SCROLL_BY_MSG_ID", // = 11; |
| "SPAWN_SCROLL_TO_MSG_ID", // = 12; |
| "SYNC_SCROLL_TO_MSG_ID", // = 13; |
| "NEW_PICTURE_MSG_ID", // = 14; |
| "UPDATE_TEXT_ENTRY_MSG_ID", // = 15; |
| "WEBCORE_INITIALIZED_MSG_ID", // = 16; |
| "UPDATE_TEXTFIELD_TEXT_MSG_ID", // = 17; |
| "DID_FIRST_LAYOUT_MSG_ID", // = 18; |
| "MOVE_OUT_OF_PLUGIN", // = 19; |
| "CLEAR_TEXT_ENTRY", // = 20; |
| "21", // = 21; |
| "UPDATE_CLIPBOARD", // = 22; |
| "LONG_PRESS_CENTER", // = 23; |
| "PREVENT_TOUCH_ID", // = 24; |
| "WEBCORE_NEED_TOUCH_EVENTS", // = 25; |
| "INVAL_RECT_MSG_ID", // = 26; |
| "REQUEST_KEYBOARD" // = 27; |
| }; |
| |
| // width which view is considered to be fully zoomed out |
| static final int ZOOM_OUT_WIDTH = 1008; |
| |
| // default scale limit. Depending on the display density |
| private static float DEFAULT_MAX_ZOOM_SCALE; |
| private static float DEFAULT_MIN_ZOOM_SCALE; |
| // scale limit, which can be set through viewport meta tag in the web page |
| private float mMaxZoomScale; |
| private float mMinZoomScale; |
| private boolean mMinZoomScaleFixed = false; |
| |
| // initial scale in percent. 0 means using default. |
| private int mInitialScale = 0; |
| |
| // default scale. Depending on the display density. |
| static int DEFAULT_SCALE_PERCENT; |
| private float mDefaultScale; |
| |
| // set to true temporarily while the zoom control is being dragged |
| private boolean mPreviewZoomOnly = false; |
| |
| // computed scale and inverse, from mZoomWidth. |
| private float mActualScale; |
| private float mInvActualScale; |
| // if this is non-zero, it is used on drawing rather than mActualScale |
| private float mZoomScale; |
| private float mInvInitialZoomScale; |
| private float mInvFinalZoomScale; |
| private long mZoomStart; |
| private static final int ZOOM_ANIMATION_LENGTH = 500; |
| |
| private boolean mUserScroll = false; |
| |
| private int mSnapScrollMode = SNAP_NONE; |
| private static final int SNAP_NONE = 1; |
| private static final int SNAP_X = 2; |
| private static final int SNAP_Y = 3; |
| private static final int SNAP_X_LOCK = 4; |
| private static final int SNAP_Y_LOCK = 5; |
| private boolean mSnapPositive; |
| |
| // Used to match key downs and key ups |
| private boolean mGotKeyDown; |
| |
| /* package */ static boolean mLogEvent = true; |
| private static final int EVENT_LOG_ZOOM_LEVEL_CHANGE = 70101; |
| private static final int EVENT_LOG_DOUBLE_TAP_DURATION = 70102; |
| |
| // for event log |
| private long mLastTouchUpTime = 0; |
| |
| /** |
| * 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; |
| |
| // Used to notify listeners of a new picture. |
| private PictureListener mPictureListener; |
| /** |
| * Interface to listen for new pictures as they change. |
| */ |
| public interface PictureListener { |
| /** |
| * Notify the listener that the picture has changed. |
| * @param view The WebView that owns the picture. |
| * @param picture The new picture. |
| */ |
| 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; |
| /** |
| * HitTestResult for hitting a HTML::a tag |
| */ |
| 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; |
| /** |
| * HitTestResult for hitting a HTML::a tag which contains HTML::img |
| */ |
| 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; |
| } |
| } |
| |
| // The View containing the zoom controls |
| private ExtendedZoomControls mZoomControls; |
| private Runnable mZoomControlRunnable; |
| |
| private ZoomButtonsController mZoomButtonsController; |
| |
| // These keep track of the center point of the zoom. They are used to |
| // determine the point around which we should zoom. |
| private float mZoomCenterX; |
| private float mZoomCenterY; |
| |
| private ZoomButtonsController.OnZoomListener mZoomListener = |
| new ZoomButtonsController.OnZoomListener() { |
| |
| public void onVisibilityChanged(boolean visible) { |
| if (visible) { |
| switchOutDrawHistory(); |
| updateZoomButtonsEnabled(); |
| } |
| } |
| |
| public void onZoom(boolean zoomIn) { |
| if (zoomIn) { |
| zoomIn(); |
| } else { |
| zoomOut(); |
| } |
| |
| updateZoomButtonsEnabled(); |
| } |
| }; |
| |
| /** |
| * 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) { |
| super(context, attrs, defStyle); |
| init(); |
| |
| mCallbackProxy = new CallbackProxy(context, this); |
| mWebViewCore = new WebViewCore(context, this, mCallbackProxy); |
| mDatabase = WebViewDatabase.getInstance(context); |
| mScroller = new Scroller(context); |
| |
| mViewManager = new ViewManager(this); |
| |
| mZoomButtonsController = new ZoomButtonsController(this); |
| mZoomButtonsController.setOnZoomListener(mZoomListener); |
| // ZoomButtonsController positions the buttons at the bottom, but in |
| // the middle. Change their layout parameters so they appear on the |
| // right. |
| View controls = mZoomButtonsController.getZoomControls(); |
| ViewGroup.LayoutParams params = controls.getLayoutParams(); |
| if (params instanceof FrameLayout.LayoutParams) { |
| FrameLayout.LayoutParams frameParams = (FrameLayout.LayoutParams) |
| params; |
| frameParams.gravity = Gravity.RIGHT; |
| } |
| } |
| |
| private void updateZoomButtonsEnabled() { |
| boolean canZoomIn = mActualScale < mMaxZoomScale; |
| boolean canZoomOut = mActualScale > mMinZoomScale; |
| if (!canZoomIn && !canZoomOut) { |
| // Hide the zoom in and out buttons, as well as the fit to page |
| // button, if the page cannot zoom |
| mZoomButtonsController.getZoomControls().setVisibility(View.GONE); |
| } else { |
| // Bring back the hidden zoom controls. |
| mZoomButtonsController.getZoomControls() |
| .setVisibility(View.VISIBLE); |
| // Set each one individually, as a page may be able to zoom in |
| // or out. |
| mZoomButtonsController.setZoomInEnabled(canZoomIn); |
| mZoomButtonsController.setZoomOutEnabled(canZoomOut); |
| } |
| } |
| |
| private void init() { |
| setWillNotDraw(false); |
| setFocusable(true); |
| setFocusableInTouchMode(true); |
| setClickable(true); |
| setLongClickable(true); |
| |
| final ViewConfiguration configuration = ViewConfiguration.get(getContext()); |
| final int slop = configuration.getScaledTouchSlop(); |
| mTouchSlopSquare = slop * slop; |
| mMinLockSnapReverseDistance = 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); |
| // density adjusted scale factors |
| DEFAULT_SCALE_PERCENT = (int) (100 * density); |
| mDefaultScale = density; |
| mActualScale = density; |
| mInvActualScale = 1 / density; |
| DEFAULT_MAX_ZOOM_SCALE = 4.0f * density; |
| DEFAULT_MIN_ZOOM_SCALE = 0.25f * density; |
| mMaxZoomScale = DEFAULT_MAX_ZOOM_SCALE; |
| mMinZoomScale = DEFAULT_MIN_ZOOM_SCALE; |
| mMaximumFling = configuration.getScaledMaximumFlingVelocity(); |
| } |
| |
| /* package */void updateDefaultZoomDensity(int zoomDensity) { |
| final float density = getContext().getResources().getDisplayMetrics().density |
| * 100 / zoomDensity; |
| if (Math.abs(density - mDefaultScale) > 0.01) { |
| float scaleFactor = density / mDefaultScale; |
| // adjust the limits |
| mNavSlop = (int) (16 * density); |
| DEFAULT_SCALE_PERCENT = (int) (100 * density); |
| DEFAULT_MAX_ZOOM_SCALE = 4.0f * density; |
| DEFAULT_MIN_ZOOM_SCALE = 0.25f * density; |
| mDefaultScale = density; |
| mMaxZoomScale *= scaleFactor; |
| mMinZoomScale *= scaleFactor; |
| setNewZoomScale(mActualScale * scaleFactor, false); |
| } |
| } |
| |
| /* 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) { |
| 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) { |
| mOverlayVerticalScrollbar = overlay; |
| } |
| |
| /** |
| * Return whether horizontal scrollbar has overlay style |
| * @return TRUE if horizontal scrollbar has overlay style. |
| */ |
| public boolean overlayHorizontalScrollbar() { |
| return mOverlayHorizontalScrollbar; |
| } |
| |
| /** |
| * Return whether vertical scrollbar has overlay style |
| * @return TRUE if vertical scrollbar has overlay style. |
| */ |
| public boolean overlayVerticalScrollbar() { |
| return mOverlayVerticalScrollbar; |
| } |
| |
| /* |
| * Return the width of the view where the content of WebView should render |
| * to. |
| */ |
| private int getViewWidth() { |
| if (!isVerticalScrollBarEnabled() || mOverlayVerticalScrollbar) { |
| return getWidth(); |
| } else { |
| return getWidth() - getVerticalScrollbarWidth(); |
| } |
| } |
| |
| /* |
| * Return the height of the view where the content of WebView should render |
| * to. |
| */ |
| private int getViewHeight() { |
| if (!isHorizontalScrollBarEnabled() || mOverlayHorizontalScrollbar) { |
| return getHeight(); |
| } else { |
| return getHeight() - getHorizontalScrollbarHeight(); |
| } |
| } |
| |
| /** |
| * @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() { |
| return mCertificate; |
| } |
| |
| /** |
| * Sets the SSL certificate for the main top-level page. |
| */ |
| public void setCertificate(SslCertificate 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) { |
| 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) { |
| 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) { |
| return mDatabase.getHttpAuthUsernamePassword(host, realm); |
| } |
| |
| /** |
| * 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() { |
| clearTextEntry(); |
| 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 |
| 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. |
| */ |
| public static void enablePlatformNotifications() { |
| Network.enablePlatformNotifications(); |
| } |
| |
| /** |
| * If platform notifications are enabled, this should be called |
| * from the Activity's onPause() or onStop(). |
| */ |
| public static void disablePlatformNotifications() { |
| Network.disablePlatformNotifications(); |
| } |
| |
| /** |
| * Sets JavaScript engine flags. |
| * |
| * @param flags JS engine flags in a String |
| * |
| * @hide pending API solidification |
| */ |
| public void setJsFlags(String flags) { |
| 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) { |
| mWebViewCore.sendMessage(EventHub.SET_NETWORK_STATE, |
| networkUp ? 1 : 0, 0); |
| } |
| |
| /** |
| * 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) { |
| 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); |
| 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)); |
| } |
| 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. |
| */ |
| public boolean savePicture(Bundle b, File dest) { |
| if (dest == null || b == null) { |
| return false; |
| } |
| final Picture p = capturePicture(); |
| try { |
| final FileOutputStream out = new FileOutputStream(dest); |
| p.writeToStream(out); |
| out.close(); |
| } catch (FileNotFoundException e){ |
| e.printStackTrace(); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } catch (RuntimeException e) { |
| e.printStackTrace(); |
| } |
| if (dest.length() > 0) { |
| b.putInt("scrollX", mScrollX); |
| b.putInt("scrollY", mScrollY); |
| b.putFloat("scale", mActualScale); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * 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. |
| */ |
| public boolean restorePicture(Bundle b, File src) { |
| if (src == null || b == null) { |
| return false; |
| } |
| if (src.exists()) { |
| Picture p = null; |
| try { |
| final FileInputStream in = new FileInputStream(src); |
| p = Picture.createFromStream(in); |
| in.close(); |
| } catch (FileNotFoundException e){ |
| e.printStackTrace(); |
| } catch (RuntimeException e) { |
| e.printStackTrace(); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| if (p != null) { |
| int sx = b.getInt("scrollX", 0); |
| int sy = b.getInt("scrollY", 0); |
| float scale = b.getFloat("scale", 1.0f); |
| mDrawHistory = true; |
| mHistoryPicture = p; |
| mScrollX = sx; |
| mScrollY = sy; |
| mHistoryWidth = Math.round(p.getWidth() * scale); |
| mHistoryHeight = Math.round(p.getHeight() * scale); |
| // as getWidth() / getHeight() of the view are not |
| // available yet, set up mActualScale, so that when |
| // onSizeChanged() is called, the rest will be set |
| // correctly |
| mActualScale = scale; |
| invalidate(); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * 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) { |
| 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); |
| } |
| // 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. |
| * @param url The url of the resource to load. |
| */ |
| public void loadUrl(String url) { |
| if (url == null) { |
| return; |
| } |
| switchOutDrawHistory(); |
| mWebViewCore.sendMessage(EventHub.LOAD_URL, url); |
| clearTextEntry(); |
| } |
| |
| /** |
| * 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. |
| * |
| * @hide pending API solidification |
| */ |
| public void postUrl(String url, byte[] postData) { |
| if (URLUtil.isNetworkUrl(url)) { |
| switchOutDrawHistory(); |
| WebViewCore.PostUrlData arg = new WebViewCore.PostUrlData(); |
| arg.mUrl = url; |
| arg.mPostData = postData; |
| mWebViewCore.sendMessage(EventHub.POST_URL, arg); |
| clearTextEntry(); |
| } else { |
| loadUrl(url); |
| } |
| } |
| |
| /** |
| * Load the given data into the WebView. This will load the data into |
| * WebView using the data: scheme. Content loaded through this mechanism |
| * does not have the ability to load content from the network. |
| * @param data A String of data in the given encoding. |
| * @param mimeType The MIMEType of the data. i.e. text/html, image/jpeg |
| * @param encoding The encoding of the data. i.e. utf-8, base64 |
| */ |
| public void loadData(String data, String mimeType, String encoding) { |
| loadUrl("data:" + mimeType + ";" + encoding + "," + data); |
| } |
| |
| /** |
| * 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 for the |
| * history entry and to resolve any relative URLs. The failUrl is used if |
| * browser fails to load the data provided. If it is empty or null, and the |
| * load fails, then no history entry is created. |
| * <p> |
| * Note for post 1.0. Due to the change in the WebKit, the access to asset |
| * files through "file:///android_asset/" for the sub resources is more |
| * restricted. If you provide null or empty string as baseUrl, you won't be |
| * able to access asset files. If the baseUrl is anything other than |
| * http(s)/ftp(s)/about/javascript as scheme, you can access asset files for |
| * sub resources. |
| * |
| * @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 failUrl URL to use if the content fails to load or null. |
| */ |
| public void loadDataWithBaseURL(String baseUrl, String data, |
| String mimeType, String encoding, String failUrl) { |
| |
| if (baseUrl != null && baseUrl.toLowerCase().startsWith("data:")) { |
| loadData(data, mimeType, encoding); |
| return; |
| } |
| switchOutDrawHistory(); |
| WebViewCore.BaseUrlData arg = new WebViewCore.BaseUrlData(); |
| arg.mBaseUrl = baseUrl; |
| arg.mData = data; |
| arg.mMimeType = mimeType; |
| arg.mEncoding = encoding; |
| arg.mFailUrl = failUrl; |
| mWebViewCore.sendMessage(EventHub.LOAD_DATA, arg); |
| clearTextEntry(); |
| } |
| |
| /** |
| * Stop the current load. |
| */ |
| public void stopLoading() { |
| // 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() { |
| 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() { |
| 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() { |
| goBackOrForward(-1); |
| } |
| |
| /** |
| * Return true if this WebView has a forward history item. |
| * @return True iff this Webview has a forward history item. |
| */ |
| public boolean canGoForward() { |
| 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() { |
| goBackOrForward(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) { |
| 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) { |
| goBackOrForward(steps, false); |
| } |
| |
| private void goBackOrForward(int steps, boolean ignoreSnapshot) { |
| // every time we go back or forward, 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 |
| mCertificate = null; |
| if (steps != 0) { |
| clearTextEntry(); |
| mWebViewCore.sendMessage(EventHub.GO_BACK_FORWARD, steps, |
| ignoreSnapshot ? 1 : 0); |
| } |
| } |
| |
| 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) { |
| 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; |
| } |
| mUserScroll = true; |
| 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) { |
| if (mNativeClass == 0) { |
| return false; |
| } |
| nativeClearCursor(); // start next trackball movement from page edge |
| if (bottom) { |
| return pinScrollTo(mScrollX, mContentHeight, true, 0); |
| } |
| // Page down. |
| int h = getHeight(); |
| int y; |
| if (h > 2 * PAGE_SCROLL_OVERLAP) { |
| y = h - PAGE_SCROLL_OVERLAP; |
| } else { |
| y = h / 2; |
| } |
| mUserScroll = true; |
| 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() { |
| mContentWidth = 0; |
| mContentHeight = 0; |
| 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() { |
| if (null == mWebViewCore) return null; // check for out of memory tab |
| return mWebViewCore.copyContentPicture(); |
| } |
| |
| /** |
| * Return true if the browser is displaying a TextView for text input. |
| */ |
| private boolean inEditingMode() { |
| return mWebTextView != null && mWebTextView.getParent() != null |
| && mWebTextView.hasFocus(); |
| } |
| |
| private void clearTextEntry() { |
| if (inEditingMode()) { |
| mWebTextView.remove(); |
| } |
| } |
| |
| /** |
| * Return the current scale of the WebView |
| * @return The current scale. |
| */ |
| public float getScale() { |
| return mActualScale; |
| } |
| |
| /** |
| * 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) { |
| mInitialScale = 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() { |
| if (!getSettings().supportZoom()) { |
| Log.w(LOGTAG, "This WebView doesn't support zoom."); |
| return; |
| } |
| clearTextEntry(); |
| if (getSettings().getBuiltInZoomControls()) { |
| mZoomButtonsController.setVisible(true); |
| } else { |
| mPrivateHandler.removeCallbacks(mZoomControlRunnable); |
| mPrivateHandler.postDelayed(mZoomControlRunnable, |
| ZOOM_CONTROLS_TIMEOUT); |
| } |
| } |
| |
| /** |
| * 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() { |
| 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); |
| } |
| } |
| } |
| } |
| 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 = viewToContent((int) mLastTouchX + mScrollX); |
| int contentY = viewToContent((int) 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; |
| } |
| |
| /** |
| * Request the href of an anchor element due to getFocusNodePath returning |
| * "href." If hrefMsg is null, this method returns immediately and does not |
| * dispatch hrefMsg to its target. |
| * |
| * @param hrefMsg This message will be dispatched with the result of the |
| * request as the data member with "url" as key. The result can |
| * be null. |
| */ |
| // FIXME: API change required to change the name of this function. We now |
| // look at the cursor node, and not the focus node. Also, what is |
| // getFocusNodePath? |
| public void requestFocusNodeHref(Message hrefMsg) { |
| if (hrefMsg == null || mNativeClass == 0) { |
| return; |
| } |
| if (nativeCursorIsAnchor()) { |
| mWebViewCore.sendMessage(EventHub.REQUEST_CURSOR_HREF, |
| nativeCursorFramePointer(), nativeCursorNodePointer(), |
| 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) { |
| int contentX = viewToContent((int) mLastTouchX + mScrollX); |
| int contentY = viewToContent((int) mLastTouchY + mScrollY); |
| String ref = nativeImageURI(contentX, contentY); |
| Bundle data = msg.getData(); |
| data.putString("url", ref); |
| msg.setData(data); |
| msg.sendToTarget(); |
| } |
| |
| private 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 |
| private int pinLocX(int x) { |
| return pinLoc(x, getViewWidth(), computeHorizontalScrollRange()); |
| } |
| |
| // Expects y in view coordinates |
| private int pinLocY(int y) { |
| return pinLoc(y, getViewHeight(), computeVerticalScrollRange()); |
| } |
| |
| /*package*/ int viewToContent(int x) { |
| return Math.round(x * mInvActualScale); |
| } |
| |
| /*package*/ int contentToView(int x) { |
| return Math.round(x * mActualScale); |
| } |
| |
| // Called by JNI to invalidate the View, given rectangle coordinates in |
| // content space |
| private void viewInvalidate(int l, int t, int r, int b) { |
| invalidate(contentToView(l), contentToView(t), contentToView(r), |
| contentToView(b)); |
| } |
| |
| // 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) { |
| postInvalidateDelayed(delay, contentToView(l), contentToView(t), |
| contentToView(r), contentToView(b)); |
| } |
| |
| private Rect contentToView(Rect x) { |
| return new Rect(contentToView(x.left), contentToView(x.top) |
| , contentToView(x.right), contentToView(x.bottom)); |
| } |
| |
| /* 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 |
| int oldX = mScrollX; |
| int oldY = mScrollY; |
| mScrollX = pinLocX(mScrollX); |
| mScrollY = pinLocY(mScrollY); |
| // android.util.Log.d("skia", "recordNewContentSize - |
| // abortAnimation"); |
| mScroller.abortAnimation(); // just in case |
| if (oldX != mScrollX || oldY != mScrollY) { |
| sendOurVisibleRect(); |
| } |
| } |
| } |
| contentSizeChanged(updateLayout); |
| } |
| |
| private void setNewZoomScale(float scale, boolean force) { |
| if (scale < mMinZoomScale) { |
| scale = mMinZoomScale; |
| } else if (scale > mMaxZoomScale) { |
| scale = mMaxZoomScale; |
| } |
| if (scale != mActualScale || force) { |
| if (mDrawHistory) { |
| // If history Picture is drawn, don't update scroll. They will |
| // be updated when we get out of that mode. |
| if (scale != mActualScale && !mPreviewZoomOnly) { |
| mCallbackProxy.onScaleChanged(mActualScale, scale); |
| } |
| mActualScale = scale; |
| mInvActualScale = 1 / scale; |
| if (!mPreviewZoomOnly) { |
| sendViewSizeZoom(); |
| } |
| } else { |
| // update our scroll so we don't appear to jump |
| // i.e. keep the center of the doc in the center of the view |
| |
| int oldX = mScrollX; |
| int oldY = mScrollY; |
| float ratio = scale * mInvActualScale; // old inverse |
| float sx = ratio * oldX + (ratio - 1) * mZoomCenterX; |
| float sy = ratio * oldY + (ratio - 1) * mZoomCenterY; |
| |
| // now update our new scale and inverse |
| if (scale != mActualScale && !mPreviewZoomOnly) { |
| mCallbackProxy.onScaleChanged(mActualScale, scale); |
| } |
| mActualScale = scale; |
| mInvActualScale = 1 / scale; |
| |
| // Scale all the child views |
| mViewManager.scaleAll(); |
| |
| // as we don't have animation for scaling, don't do animation |
| // for scrolling, as it causes weird intermediate state |
| // pinScrollTo(Math.round(sx), Math.round(sy)); |
| mScrollX = pinLocX(Math.round(sx)); |
| mScrollY = pinLocY(Math.round(sy)); |
| |
| if (!mPreviewZoomOnly) { |
| sendViewSizeZoom(); |
| sendOurVisibleRect(); |
| } |
| } |
| } |
| } |
| |
| // Used to avoid sending many visible rect messages. |
| private Rect mLastVisibleRectSent; |
| private Rect mLastGlobalRect; |
| |
| private Rect sendOurVisibleRect() { |
| Rect rect = new Rect(); |
| calcOurContentVisibleRect(rect); |
| // Rect.equals() checks for null input. |
| if (!rect.equals(mLastVisibleRectSent)) { |
| Point pos = new Point(rect.left, rect.top); |
| mWebViewCore.sendMessage(EventHub.SET_SCROLL_OFFSET, |
| nativeMoveGeneration(), 0, pos); |
| mLastVisibleRectSent = rect; |
| } |
| 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. |
| 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); |
| if (mFindIsUp) { |
| r.bottom -= FIND_HEIGHT; |
| } |
| } |
| |
| // Sets r to be our visible rectangle in content coordinates |
| private void calcOurContentVisibleRect(Rect r) { |
| calcOurVisibleRect(r); |
| r.left = viewToContent(r.left); |
| r.top = viewToContent(r.top); |
| r.right = viewToContent(r.right); |
| r.bottom = viewToContent(r.bottom); |
| } |
| |
| /** |
| * Compute unzoomed width and height, and if they differ from the last |
| * values we sent, send them to webkit (to be used has new viewport) |
| * |
| * @return true if new values were sent |
| */ |
| private boolean sendViewSizeZoom() { |
| int newWidth = Math.round(getViewWidth() * mInvActualScale); |
| int newHeight = Math.round(getViewHeight() * mInvActualScale); |
| /* |
| * 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; |
| } |
| // Avoid sending another message if the dimensions have not changed. |
| if (newWidth != mLastWidthSent || newHeight != mLastHeightSent) { |
| mWebViewCore.sendMessage(EventHub.VIEW_SIZE_CHANGED, |
| newWidth, newHeight, new Float(mActualScale)); |
| mLastWidthSent = newWidth; |
| mLastHeightSent = newHeight; |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| protected int computeHorizontalScrollRange() { |
| if (mDrawHistory) { |
| return mHistoryWidth; |
| } else { |
| return contentToView(mContentWidth); |
| } |
| } |
| |
| // Make sure this stays in sync with the actual height of the FindDialog. |
| private static final int FIND_HEIGHT = 79; |
| |
| @Override |
| protected int computeVerticalScrollRange() { |
| if (mDrawHistory) { |
| return mHistoryHeight; |
| } else { |
| int height = contentToView(mContentHeight); |
| if (mFindIsUp) { |
| height += FIND_HEIGHT; |
| } |
| return height; |
| } |
| } |
| |
| /** |
| * 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() { |
| 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() { |
| 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() { |
| 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() { |
| WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); |
| return h != null ? h.getFavicon() : null; |
| } |
| |
| /** |
| * Get the progress for the current page. |
| * @return The progress for the current page between 0 and 100. |
| */ |
| public int getProgress() { |
| return mCallbackProxy.getProgress(); |
| } |
| |
| /** |
| * @return the height of the HTML content. |
| */ |
| public int getContentHeight() { |
| return mContentHeight; |
| } |
| |
| /** |
| * 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() { |
| mWebViewCore.sendMessage(EventHub.PAUSE_TIMERS); |
| } |
| |
| /** |
| * Resume all layout, parsing, and javascript timers for all webviews. |
| * This will resume dispatching all timers. |
| */ |
| public void resumeTimers() { |
| mWebViewCore.sendMessage(EventHub.RESUME_TIMERS); |
| } |
| |
| /** |
| * Call this to pause any extra processing associated with this view and |
| * its associated DOM/plugins/javascript/etc. For example, if the view is |
| * taken offscreen, this could be called to reduce unnecessary CPU and/or |
| * network traffic. When the view is again "active", call onResume(). |
| * |
| * Note that this differs from pauseTimers(), which affects all views/DOMs |
| * @hide |
| */ |
| public void onPause() { |
| if (!mIsPaused) { |
| mIsPaused = true; |
| mWebViewCore.sendMessage(EventHub.ON_PAUSE); |
| } |
| } |
| |
| /** |
| * Call this to balanace a previous call to onPause() |
| * @hide |
| */ |
| public void onResume() { |
| 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. |
| * @hide |
| */ |
| public void freeMemory() { |
| 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) { |
| // 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() { |
| if (inEditingMode()) { |
| AutoCompleteAdapter adapter = null; |
| mWebTextView.setAdapterCustom(adapter); |
| } |
| } |
| |
| /** |
| * Tell the WebView to clear its internal back/forward list. |
| */ |
| public void clearHistory() { |
| 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() { |
| 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() { |
| 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) { |
| 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) { |
| mFindIsUp = true; |
| int result = nativeFindAll(find.toLowerCase(), find.toUpperCase()); |
| invalidate(); |
| return result; |
| } |
| |
| // Used to know whether the find dialog is open. Affects whether |
| // or not we draw the highlights for matches. |
| private boolean mFindIsUp; |
| |
| /** |
| * 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) { |
| 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() { |
| mFindIsUp = false; |
| nativeSetFindIsDown(); |
| // 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) { |
| if (response == null) { |
| return; |
| } |
| mWebViewCore.sendMessage(EventHub.DOC_HAS_IMAGES, response); |
| } |
| |
| @Override |
| public void computeScroll() { |
| if (mScroller.computeScrollOffset()) { |
| int oldX = mScrollX; |
| int oldY = mScrollY; |
| mScrollX = mScroller.getCurrX(); |
| mScrollY = mScroller.getCurrY(); |
| postInvalidate(); // So we draw again |
| if (oldX != mScrollX || oldY != mScrollY) { |
| // as onScrollChanged() is not called, sendOurVisibleRect() |
| // needs to be call explicitly |
| 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; |
| } |
| |
| if (true && animate) { |
| // Log.d(LOGTAG, "startScroll: " + dx + " " + dy); |
| |
| mScroller.startScroll(mScrollX, mScrollY, dx, dy, |
| animationDuration > 0 ? animationDuration : computeDuration(dx, dy)); |
| invalidate(); |
| } else { |
| mScroller.abortAnimation(); // just in case |
| scrollTo(x, y); |
| } |
| return true; |
| } |
| |
| // Scale from content to view coordinates, and pin. |
| // Also called by jni webview.cpp |
| private void 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; |
| } |
| cx = contentToView(cx); |
| cy = contentToView(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); |
| if (cy == 0 && cx != 0) { |
| pinScrollBy(cx, 0, animate, 0); |
| } |
| } else { |
| pinScrollBy(cx, cy, animate, 0); |
| } |
| } |
| |
| // scale from content to view coordinates, and pin |
| // return true if pin caused the final x/y different than the request cx/cy; |
| // return false if the view scroll to the exact position as it is requested. |
| 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 = contentToView(cx); |
| int vy = contentToView(cy); |
| // Log.d(LOGTAG, "content scrollTo [" + cx + " " + cy + "] view=[" + |
| // vx + " " + vy + "]"); |
| pinScrollTo(vx, vy, false, 0); |
| if (mScrollX != vx || mScrollY != vy) { |
| 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 = contentToView(cx); |
| int vy = contentToView(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() != contentToView(mContentHeight) |
| && updateLayout) { |
| requestLayout(); |
| } |
| } else if (mWidthCanMeasure) { |
| if (getMeasuredWidth() != contentToView(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(); |
| } |
| } |
| |
| /** |
| * 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) { |
| mCallbackProxy.setWebViewClient(client); |
| } |
| |
| /** |
| * 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) { |
| 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) { |
| mCallbackProxy.setWebChromeClient(client); |
| } |
| |
| /** |
| * Gets the chrome handler. |
| * @return the current WebChromeClient instance. |
| * |
| * @hide API council approval. |
| */ |
| public WebChromeClient getWebChromeClient() { |
| return mCallbackProxy.getWebChromeClient(); |
| } |
| |
| /** |
| * Set the Picture listener. This is an interface used to receive |
| * notifications of a new Picture. |
| * @param listener An implementation of WebView.PictureListener. |
| */ |
| public void setPictureListener(PictureListener listener) { |
| 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 |
| * @param interfaceName The name to used to expose the class in Javascript |
| */ |
| public void addJavascriptInterface(Object obj, String interfaceName) { |
| WebViewCore.JSInterfaceData arg = new WebViewCore.JSInterfaceData(); |
| arg.mObject = obj; |
| arg.mInterfaceName = interfaceName; |
| mWebViewCore.sendMessage(EventHub.ADD_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() { |
| return mWebViewCore.getSettings(); |
| } |
| |
| /** |
| * Return the list of currently loaded plugins. |
| * @return The list of currently loaded plugins. |
| */ |
| public static synchronized PluginList getPluginList() { |
| if (sPluginList == null) { |
| sPluginList = new PluginList(); |
| } |
| return sPluginList; |
| } |
| |
| /** |
| * TODO: need to add @Deprecated |
| */ |
| public void refreshPlugins(boolean reloadOpenPages) { |
| PluginManager.getInstance(mContext).refreshPlugins(reloadOpenPages); |
| } |
| |
| //------------------------------------------------------------------------- |
| // Override View methods |
| //------------------------------------------------------------------------- |
| |
| @Override |
| protected void finalize() throws Throwable { |
| destroy(); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| // if mNativeClass is 0, the WebView has been destroyed. Do nothing. |
| if (mNativeClass == 0) { |
| return; |
| } |
| if (mWebViewCore.mEndScaleZoom) { |
| mWebViewCore.mEndScaleZoom = false; |
| if (mTouchMode >= FIRST_SCROLL_ZOOM |
| && mTouchMode <= LAST_SCROLL_ZOOM) { |
| setHorizontalScrollBarEnabled(true); |
| setVerticalScrollBarEnabled(true); |
| mTouchMode = TOUCH_DONE_MODE; |
| } |
| } |
| int sc = canvas.save(); |
| if (mTouchMode >= FIRST_SCROLL_ZOOM && mTouchMode <= LAST_SCROLL_ZOOM) { |
| scrollZoomDraw(canvas); |
| } else { |
| // 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); |
| } |
| canvas.restoreToCount(sc); |
| |
| if (AUTO_REDRAW_HACK && mAutoRedraw) { |
| invalidate(); |
| } |
| } |
| |
| @Override |
| public void setLayoutParams(ViewGroup.LayoutParams params) { |
| if (params.height == LayoutParams.WRAP_CONTENT) { |
| mWrapContent = true; |
| } |
| super.setLayoutParams(params); |
| } |
| |
| @Override |
| public boolean performLongClick() { |
| if (mNativeClass != 0 && nativeCursorIsTextInput()) { |
| // Send the click so that the textfield is in focus |
| // FIXME: When we start respecting changes to the native textfield's |
| // selection, need to make sure that this does not change it. |
| mWebViewCore.sendMessage(EventHub.CLICK, nativeCursorFramePointer(), |
| nativeCursorNodePointer()); |
| rebuildWebTextView(); |
| } |
| if (inEditingMode()) { |
| return mWebTextView.performLongClick(); |
| } else { |
| return super.performLongClick(); |
| } |
| } |
| |
| private void drawCoreAndCursorRing(Canvas canvas, int color, |
| boolean drawCursorRing) { |
| if (mDrawHistory) { |
| canvas.scale(mActualScale, mActualScale); |
| canvas.drawPicture(mHistoryPicture); |
| return; |
| } |
| |
| boolean animateZoom = mZoomScale != 0; |
| boolean animateScroll = !mScroller.isFinished() |
| || mVelocityTracker != null; |
| if (animateZoom) { |
| float zoomScale; |
| int interval = (int) (SystemClock.uptimeMillis() - mZoomStart); |
| if (interval < ZOOM_ANIMATION_LENGTH) { |
| float ratio = (float) interval / ZOOM_ANIMATION_LENGTH; |
| zoomScale = 1.0f / (mInvInitialZoomScale |
| + (mInvFinalZoomScale - mInvInitialZoomScale) * ratio); |
| invalidate(); |
| } else { |
| zoomScale = mZoomScale; |
| // set mZoomScale to be 0 as we have done animation |
| mZoomScale = 0; |
| } |
| float scale = (mActualScale - zoomScale) * mInvActualScale; |
| float tx = scale * (mZoomCenterX + mScrollX); |
| float ty = scale * (mZoomCenterY + mScrollY); |
| |
| // this block pins the translate to "legal" bounds. This makes the |
| // animation a bit non-obvious, but it means we won't pop when the |
| // "real" zoom takes effect |
| if (true) { |
| // canvas.translate(mScrollX, mScrollY); |
| tx -= mScrollX; |
| ty -= mScrollY; |
| tx = -pinLoc(-Math.round(tx), getViewWidth(), Math |
| .round(mContentWidth * zoomScale)); |
| ty = -pinLoc(-Math.round(ty), getViewHeight(), Math |
| .round(mContentHeight * zoomScale)); |
| tx += mScrollX; |
| ty += mScrollY; |
| } |
| canvas.translate(tx, ty); |
| canvas.scale(zoomScale, zoomScale); |
| } else { |
| canvas.scale(mActualScale, mActualScale); |
| } |
| |
| mWebViewCore.drawContentPicture(canvas, color, animateZoom, |
| animateScroll); |
| |
| if (mNativeClass == 0) return; |
| if (mShiftIsPressed) { |
| if (mTouchSelection) { |
| nativeDrawSelectionRegion(canvas); |
| } else { |
| nativeDrawSelection(canvas, mSelectX, mSelectY, |
| mExtendSelection); |
| } |
| } else if (drawCursorRing) { |
| if (mTouchMode == TOUCH_SHORTPRESS_START_MODE) { |
| mTouchMode = TOUCH_SHORTPRESS_MODE; |
| HitTestResult hitTest = getHitTestResult(); |
| if (hitTest != null && |
| hitTest.mType != HitTestResult.UNKNOWN_TYPE) { |
| mPrivateHandler.sendMessageDelayed(mPrivateHandler |
| .obtainMessage(SWITCH_TO_LONGPRESS), |
| LONG_PRESS_TIMEOUT); |
| } |
| } |
| nativeDrawCursorRing(canvas); |
| } |
| // When the FindDialog is up, only draw the matches if we are not in |
| // the process of scrolling them into view. |
| if (mFindIsUp && !animateScroll) { |
| nativeDrawMatches(canvas); |
| } |
| } |
| |
| private float scrollZoomGridScale(float invScale) { |
| float griddedInvScale = (int) (invScale * SCROLL_ZOOM_GRID) |
| / (float) SCROLL_ZOOM_GRID; |
| return 1.0f / griddedInvScale; |
| } |
| |
| private float scrollZoomX(float scale) { |
| int width = getViewWidth(); |
| float maxScrollZoomX = mContentWidth * scale - width; |
| int maxX = mContentWidth - width; |
| return -(maxScrollZoomX > 0 ? mZoomScrollX * maxScrollZoomX / maxX |
| : maxScrollZoomX / 2); |
| } |
| |
| private float scrollZoomY(float scale) { |
| int height = getViewHeight(); |
| float maxScrollZoomY = mContentHeight * scale - height; |
| int maxY = mContentHeight - height; |
| return -(maxScrollZoomY > 0 ? mZoomScrollY * maxScrollZoomY / maxY |
| : maxScrollZoomY / 2); |
| } |
| |
| private void drawMagnifyFrame(Canvas canvas, Rect frame, Paint paint) { |
| final float ADORNMENT_LEN = 16.0f; |
| float width = frame.width(); |
| float height = frame.height(); |
| Path path = new Path(); |
| path.moveTo(-ADORNMENT_LEN, -ADORNMENT_LEN); |
| path.lineTo(0, 0); |
| path.lineTo(width, 0); |
| path.lineTo(width + ADORNMENT_LEN, -ADORNMENT_LEN); |
| path.moveTo(-ADORNMENT_LEN, height + ADORNMENT_LEN); |
| path.lineTo(0, height); |
| path.lineTo(width, height); |
| path.lineTo(width + ADORNMENT_LEN, height + ADORNMENT_LEN); |
| path.moveTo(0, 0); |
| path.lineTo(0, height); |
| path.moveTo(width, 0); |
| path.lineTo(width, height); |
| path.offset(frame.left, frame.top); |
| canvas.drawPath(path, paint); |
| } |
| |
| // Returns frame surrounding magified portion of screen while |
| // scroll-zoom is enabled. The frame is also used to center the |
| // zoom-in zoom-out points at the start and end of the animation. |
| private Rect scrollZoomFrame(int width, int height, float halfScale) { |
| Rect scrollFrame = new Rect(); |
| scrollFrame.set(mZoomScrollX, mZoomScrollY, |
| mZoomScrollX + width, mZoomScrollY + height); |
| if (mContentWidth * mZoomScrollLimit < width) { |
| float scale = zoomFrameScaleX(width, halfScale, 1.0f); |
| float offsetX = (width * scale - width) * 0.5f; |
| scrollFrame.left -= offsetX; |
| scrollFrame.right += offsetX; |
| } |
| if (mContentHeight * mZoomScrollLimit < height) { |
| float scale = zoomFrameScaleY(height, halfScale, 1.0f); |
| float offsetY = (height * scale - height) * 0.5f; |
| scrollFrame.top -= offsetY; |
| scrollFrame.bottom += offsetY; |
| } |
| return scrollFrame; |
| } |
| |
| private float zoomFrameScaleX(int width, float halfScale, float noScale) { |
| // mContentWidth > width > mContentWidth * mZoomScrollLimit |
| if (mContentWidth <= width) { |
| return halfScale; |
| } |
| float part = (width - mContentWidth * mZoomScrollLimit) |
| / (width * (1 - mZoomScrollLimit)); |
| return halfScale * part + noScale * (1.0f - part); |
| } |
| |
| private float zoomFrameScaleY(int height, float halfScale, float noScale) { |
| if (mContentHeight <= height) { |
| return halfScale; |
| } |
| float part = (height - mContentHeight * mZoomScrollLimit) |
| / (height * (1 - mZoomScrollLimit)); |
| return halfScale * part + noScale * (1.0f - part); |
| } |
| |
| private float scrollZoomMagScale(float invScale) { |
| return (invScale * 2 + mInvActualScale) / 3; |
| } |
| |
| private void scrollZoomDraw(Canvas canvas) { |
| float invScale = mZoomScrollInvLimit; |
| int elapsed = 0; |
| if (mTouchMode != SCROLL_ZOOM_OUT) { |
| elapsed = (int) Math.min(System.currentTimeMillis() |
| - mZoomScrollStart, SCROLL_ZOOM_DURATION); |
| float transitionScale = (mZoomScrollInvLimit - mInvActualScale) |
| * elapsed / SCROLL_ZOOM_DURATION; |
| if (mTouchMode == SCROLL_ZOOM_ANIMATION_OUT) { |
| invScale = mInvActualScale + transitionScale; |
| } else { /* if (mTouchMode == SCROLL_ZOOM_ANIMATION_IN) */ |
| invScale = mZoomScrollInvLimit - transitionScale; |
| } |
| } |
| float scale = scrollZoomGridScale(invScale); |
| invScale = 1.0f / scale; |
| int width = getViewWidth(); |
| int height = getViewHeight(); |
| float halfScale = scrollZoomMagScale(invScale); |
| Rect scrollFrame = scrollZoomFrame(width, height, halfScale); |
| if (elapsed == SCROLL_ZOOM_DURATION) { |
| if (mTouchMode == SCROLL_ZOOM_ANIMATION_IN) { |
| setHorizontalScrollBarEnabled(true); |
| setVerticalScrollBarEnabled(true); |
| rebuildWebTextView(); |
| scrollTo((int) (scrollFrame.centerX() * mActualScale) |
| - (width >> 1), (int) (scrollFrame.centerY() |
| * mActualScale) - (height >> 1)); |
| mTouchMode = TOUCH_DONE_MODE; |
| // Show all the child views once we are done. |
| mViewManager.showAll(); |
| } else { |
| mTouchMode = SCROLL_ZOOM_OUT; |
| } |
| } |
| float newX = scrollZoomX(scale); |
| float newY = scrollZoomY(scale); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "scrollZoomDraw scale=" + scale + " + (" + newX |
| + ", " + newY + ") mZoomScroll=(" + mZoomScrollX + ", " |
| + mZoomScrollY + ")" + " invScale=" + invScale + " scale=" |
| + scale); |
| } |
| canvas.translate(newX, newY); |
| canvas.scale(scale, scale); |
| boolean animating = mTouchMode != SCROLL_ZOOM_OUT; |
| if (mDrawHistory) { |
| int sc = canvas.save(Canvas.CLIP_SAVE_FLAG); |
| Rect clip = new Rect(0, 0, mHistoryPicture.getWidth(), |
| mHistoryPicture.getHeight()); |
| canvas.clipRect(clip, Region.Op.DIFFERENCE); |
| canvas.drawColor(mBackgroundColor); |
| canvas.restoreToCount(sc); |
| canvas.drawPicture(mHistoryPicture); |
| } else { |
| mWebViewCore.drawContentPicture(canvas, mBackgroundColor, |
| animating, true); |
| } |
| if (mTouchMode == TOUCH_DONE_MODE) { |
| return; |
| } |
| Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| paint.setStyle(Paint.Style.STROKE); |
| paint.setStrokeWidth(30.0f); |
| paint.setARGB(0x50, 0, 0, 0); |
| int maxX = mContentWidth - width; |
| int maxY = mContentHeight - height; |
| if (true) { // experiment: draw hint to place finger off magnify area |
| drawMagnifyFrame(canvas, scrollFrame, paint); |
| } else { |
| canvas.drawRect(scrollFrame, paint); |
| } |
| int sc = canvas.save(); |
| canvas.clipRect(scrollFrame); |
| float halfX = (float) mZoomScrollX / maxX; |
| if (mContentWidth * mZoomScrollLimit < width) { |
| halfX = zoomFrameScaleX(width, 0.5f, halfX); |
| } |
| float halfY = (float) mZoomScrollY / maxY; |
| if (mContentHeight * mZoomScrollLimit < height) { |
| halfY = zoomFrameScaleY(height, 0.5f, halfY); |
| } |
| canvas.scale(halfScale, halfScale, mZoomScrollX + width * halfX |
| , mZoomScrollY + height * halfY); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "scrollZoomDraw halfScale=" + halfScale + " w/h=(" |
| + width + ", " + height + ") half=(" + halfX + ", " |
| + halfY + ")"); |
| } |
| if (mDrawHistory) { |
| canvas.drawPicture(mHistoryPicture); |
| } else { |
| mWebViewCore.drawContentPicture(canvas, mBackgroundColor, |
| animating, false); |
| } |
| canvas.restoreToCount(sc); |
| if (mTouchMode != SCROLL_ZOOM_OUT) { |
| invalidate(); |
| } |
| } |
| |
| private void zoomScrollTap(float x, float y) { |
| float scale = scrollZoomGridScale(mZoomScrollInvLimit); |
| float left = scrollZoomX(scale); |
| float top = scrollZoomY(scale); |
| int width = getViewWidth(); |
| int height = getViewHeight(); |
| x -= width * scale / 2; |
| y -= height * scale / 2; |
| mZoomScrollX = Math.min(mContentWidth - width |
| , Math.max(0, (int) ((x - left) / scale))); |
| mZoomScrollY = Math.min(mContentHeight - height |
| , Math.max(0, (int) ((y - top) / scale))); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "zoomScrollTap scale=" + scale + " + (" + left |
| + ", " + top + ") mZoomScroll=(" + mZoomScrollX + ", " |
| + mZoomScrollY + ")" + " x=" + x + " y=" + y); |
| } |
| } |
| |
| /** |
| * @hide |
| */ |
| public boolean canZoomScrollOut() { |
| if (mContentWidth == 0 || mContentHeight == 0) { |
| return false; |
| } |
| int width = getViewWidth(); |
| int height = getViewHeight(); |
| float x = (float) width / (float) mContentWidth; |
| float y = (float) height / (float) mContentHeight; |
| mZoomScrollLimit = Math.max(DEFAULT_MIN_ZOOM_SCALE, Math.min(x, y)); |
| mZoomScrollInvLimit = 1.0f / mZoomScrollLimit; |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "canZoomScrollOut" |
| + " mInvActualScale=" + mInvActualScale |
| + " mZoomScrollLimit=" + mZoomScrollLimit |
| + " mZoomScrollInvLimit=" + mZoomScrollInvLimit |
| + " mContentWidth=" + mContentWidth |
| + " mContentHeight=" + mContentHeight |
| ); |
| } |
| // don't zoom out unless magnify area is at least half as wide |
| // or tall as content |
| float limit = mZoomScrollLimit * 2; |
| return mContentWidth >= width * limit |
| || mContentHeight >= height * limit; |
| } |
| |
| private void startZoomScrollOut() { |
| setHorizontalScrollBarEnabled(false); |
| setVerticalScrollBarEnabled(false); |
| if (getSettings().getBuiltInZoomControls()) { |
| if (mZoomButtonsController.isVisible()) { |
| mZoomButtonsController.setVisible(false); |
| } |
| } else { |
| if (mZoomControlRunnable != null) { |
| mPrivateHandler.removeCallbacks(mZoomControlRunnable); |
| } |
| if (mZoomControls != null) { |
| mZoomControls.hide(); |
| } |
| } |
| int width = getViewWidth(); |
| int height = getViewHeight(); |
| int halfW = width >> 1; |
| mLastTouchX = halfW; |
| int halfH = height >> 1; |
| mLastTouchY = halfH; |
| mScroller.abortAnimation(); |
| mZoomScrollStart = System.currentTimeMillis(); |
| Rect zoomFrame = scrollZoomFrame(width, height |
| , scrollZoomMagScale(mZoomScrollInvLimit)); |
| mZoomScrollX = Math.max(0, (int) ((mScrollX + halfW) * mInvActualScale) |
| - (zoomFrame.width() >> 1)); |
| mZoomScrollY = Math.max(0, (int) ((mScrollY + halfH) * mInvActualScale) |
| - (zoomFrame.height() >> 1)); |
| scrollTo(0, 0); // triggers inval, starts animation |
| clearTextEntry(); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "startZoomScrollOut mZoomScroll=(" |
| + mZoomScrollX + ", " + mZoomScrollY +")"); |
| } |
| } |
| |
| /** |
| * @hide |
| */ |
| public void zoomScrollOut() { |
| if (canZoomScrollOut() == false) { |
| mTouchMode = TOUCH_DONE_MODE; |
| return; |
| } |
| // Hide the child views while in this mode. |
| mViewManager.hideAll(); |
| startZoomScrollOut(); |
| mTouchMode = SCROLL_ZOOM_ANIMATION_OUT; |
| invalidate(); |
| } |
| |
| private void moveZoomScrollWindow(float x, float y) { |
| if (Math.abs(x - mLastZoomScrollRawX) < 1.5f |
| && Math.abs(y - mLastZoomScrollRawY) < 1.5f) { |
| return; |
| } |
| mLastZoomScrollRawX = x; |
| mLastZoomScrollRawY = y; |
| int oldX = mZoomScrollX; |
| int oldY = mZoomScrollY; |
| int width = getViewWidth(); |
| int height = getViewHeight(); |
| int maxZoomX = mContentWidth - width; |
| if (maxZoomX > 0) { |
| int maxScreenX = width - (int) Math.ceil(width |
| * mZoomScrollLimit) - SCROLL_ZOOM_FINGER_BUFFER; |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "moveZoomScrollWindow-X" |
| + " maxScreenX=" + maxScreenX + " width=" + width |
| + " mZoomScrollLimit=" + mZoomScrollLimit + " x=" + x); |
| } |
| x += maxScreenX * mLastScrollX / maxZoomX - mLastTouchX; |
| x *= Math.max(maxZoomX / maxScreenX, mZoomScrollInvLimit); |
| mZoomScrollX = Math.max(0, Math.min(maxZoomX, (int) x)); |
| } |
| int maxZoomY = mContentHeight - height; |
| if (maxZoomY > 0) { |
| int maxScreenY = height - (int) Math.ceil(height |
| * mZoomScrollLimit) - SCROLL_ZOOM_FINGER_BUFFER; |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "moveZoomScrollWindow-Y" |
| + " maxScreenY=" + maxScreenY + " height=" + height |
| + " mZoomScrollLimit=" + mZoomScrollLimit + " y=" + y); |
| } |
| y += maxScreenY * mLastScrollY / maxZoomY - mLastTouchY; |
| y *= Math.max(maxZoomY / maxScreenY, mZoomScrollInvLimit); |
| mZoomScrollY = Math.max(0, Math.min(maxZoomY, (int) y)); |
| } |
| if (oldX != mZoomScrollX || oldY != mZoomScrollY) { |
| invalidate(); |
| } |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "moveZoomScrollWindow" |
| + " scrollTo=(" + mZoomScrollX + ", " + mZoomScrollY + ")" |
| + " mLastTouch=(" + mLastTouchX + ", " + mLastTouchY + ")" |
| + " maxZoom=(" + maxZoomX + ", " + maxZoomY + ")" |
| + " last=("+mLastScrollX+", "+mLastScrollY+")" |
| + " x=" + x + " y=" + y); |
| } |
| } |
| |
| private void setZoomScrollIn() { |
| mZoomScrollStart = System.currentTimeMillis(); |
| } |
| |
| private float mZoomScrollLimit; |
| private float mZoomScrollInvLimit; |
| private int mLastScrollX; |
| private int mLastScrollY; |
| private long mZoomScrollStart; |
| private int mZoomScrollX; |
| private int mZoomScrollY; |
| private float mLastZoomScrollRawX = -1000.0f; |
| private float mLastZoomScrollRawY = -1000.0f; |
| // The zoomed scale varies from 1.0 to DEFAULT_MIN_ZOOM_SCALE == 0.25. |
| // The zoom animation duration SCROLL_ZOOM_DURATION == 0.5. |
| // Two pressures compete for gridding; a high frame rate (e.g. 20 fps) |
| // and minimizing font cache allocations (fewer frames is better). |
| // A SCROLL_ZOOM_GRID of 6 permits about 20 zoom levels over 0.5 seconds: |
| // the inverse of: 1.0, 1.16, 1.33, 1.5, 1.67, 1.84, 2.0, etc. to 4.0 |
| private static final int SCROLL_ZOOM_GRID = 6; |
| private static final int SCROLL_ZOOM_DURATION = 500; |
| // Make it easier to get to the bottom of a document by reserving a 32 |
| // pixel buffer, for when the starting drag is a bit below the bottom of |
| // the magnify frame. |
| private static final int SCROLL_ZOOM_FINGER_BUFFER = 32; |
| |
| // 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; |
| } |
| |
| // Should only be called in UI thread |
| void switchOutDrawHistory() { |
| if (null == mWebViewCore) return; // CallbackProxy may trigger this |
| if (mDrawHistory && mWebViewCore.pictureReady()) { |
| mDrawHistory = false; |
| invalidate(); |
| int oldScrollX = mScrollX; |
| int oldScrollY = mScrollY; |
| mScrollX = pinLocX(mScrollX); |
| mScrollY = pinLocY(mScrollY); |
| if (oldScrollX != mScrollX || oldScrollY != mScrollY) { |
| mUserScroll = false; |
| mWebViewCore.sendMessage(EventHub.SYNC_SCROLL, oldScrollX, |
| oldScrollY); |
| } |
| sendOurVisibleRect(); |
| } |
| } |
| |
| WebViewCore.CursorData cursorData() { |
| WebViewCore.CursorData result = new WebViewCore.CursorData(); |
| result.mMoveGeneration = nativeMoveGeneration(); |
| result.mFrame = nativeCursorFramePointer(); |
| Point position = nativeCursorPosition(); |
| result.mX = position.x; |
| result.mY = position.y; |
| 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.DeleteSelectionData data |
| = new WebViewCore.DeleteSelectionData(); |
| data.mStart = start; |
| data.mEnd = end; |
| data.mTextGeneration = mTextGeneration; |
| mWebViewCore.sendMessage(EventHub.DELETE_SELECTION, 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) { |
| mWebViewCore.sendMessage(EventHub.SET_SELECTION, start, end); |
| } |
| |
| // Called by JNI when a touch event puts a textfield into focus. |
| private void displaySoftKeyboard(boolean isTextView) { |
| InputMethodManager imm = (InputMethodManager) |
| getContext().getSystemService(Context.INPUT_METHOD_SERVICE); |
| |
| if (isTextView) { |
| imm.showSoftInput(mWebTextView, 0); |
| // Now we need to fake a touch event to place the cursor where the |
| // user touched. |
| AbsoluteLayout.LayoutParams lp = (AbsoluteLayout.LayoutParams) |
| mWebTextView.getLayoutParams(); |
| if (lp != null) { |
| // Take the last touch and adjust for the location of the |
| // WebTextView. |
| float x = mLastTouchX + (float) (mScrollX - lp.x); |
| float y = mLastTouchY + (float) (mScrollY - lp.y); |
| mWebTextView.fakeTouchEvent(x, y); |
| } |
| } |
| else { // used by plugins |
| imm.showSoftInput(this, 0); |
| } |
| } |
| |
| // Called by WebKit to instruct the UI to hide the keyboard |
| private void hideSoftKeyboard() { |
| InputMethodManager imm = (InputMethodManager) |
| getContext().getSystemService(Context.INPUT_METHOD_SERVICE); |
| |
| 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. |
| */ |
| private void rebuildWebTextView() { |
| // If the WebView does not have focus, do nothing until it gains focus. |
| if (!hasFocus() && (null == mWebTextView || !mWebTextView.hasFocus()) |
| || (mTouchMode >= FIRST_SCROLL_ZOOM |
| && mTouchMode <= LAST_SCROLL_ZOOM)) { |
| 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); |
| // Initialize our generation number. |
| mTextGeneration = 0; |
| } |
| mWebTextView.setTextSize(contentToView(nativeFocusCandidateTextSize())); |
| Rect visibleRect = new Rect(); |
| calcOurContentVisibleRect(visibleRect); |
| // Note that sendOurVisibleRect calls viewToContent, so the coordinates |
| // should be in content coordinates. |
| Rect bounds = nativeFocusCandidateNodeBounds(); |
| if (!Rect.intersects(bounds, visibleRect)) { |
| mWebTextView.bringIntoView(); |
| } |
| 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. |
| // We also need to restore the selection, which gets wrecked by |
| // calling setTextEntryRect. |
| Spannable spannable = (Spannable) mWebTextView.getText(); |
| int start = Selection.getSelectionStart(spannable); |
| int end = Selection.getSelectionEnd(spannable); |
| // 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(spannable.toString()) |
| && nativeTextGeneration() == mTextGeneration) { |
| mWebTextView.setTextAndKeepSelection(text); |
| } else { |
| Selection.setSelection(spannable, start, end); |
| } |
| } else { |
| Rect vBox = contentToView(bounds); |
| mWebTextView.setRect(vBox.left, vBox.top, vBox.width(), |
| vBox.height()); |
| mWebTextView.setGravity(nativeFocusCandidateIsRtlText() ? |
| Gravity.RIGHT : Gravity.NO_GRAVITY); |
| // this needs to be called before update adapter thread starts to |
| // ensure the mWebTextView has the same node pointer |
| mWebTextView.setNodePointer(nodePointer); |
| int maxLength = -1; |
| boolean isTextField = nativeFocusCandidateIsTextField(); |
| if (isTextField) { |
| maxLength = nativeFocusCandidateMaxLength(); |
| String name = nativeFocusCandidateName(); |
| if (mWebViewCore.getSettings().getSaveFormData() |
| && name != null) { |
| Message update = mPrivateHandler.obtainMessage( |
| REQUEST_FORM_DATA, nodePointer); |
| RequestFormData updater = new RequestFormData(name, |
| getUrl(), update); |
| Thread t = new Thread(updater); |
| t.start(); |
| } |
| } |
| mWebTextView.setMaxLength(maxLength); |
| AutoCompleteAdapter adapter = null; |
| mWebTextView.setAdapterCustom(adapter); |
| mWebTextView.setSingleLine(isTextField); |
| mWebTextView.setInPassword(nativeFocusCandidateIsPassword()); |
| if (null == text) { |
| mWebTextView.setText("", 0, 0); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "rebuildWebTextView null == text"); |
| } |
| } else { |
| // Change to true to enable the old style behavior, where |
| // entering a textfield/textarea always set the selection to the |
| // whole field. This was desirable for the case where the user |
| // intends to scroll past the field using the trackball. |
| // However, it causes a problem when replying to emails - the |
| // user expects the cursor to be at the beginning of the |
| // textarea. Testing out a new behavior, where textfields set |
| // selection at the end, and textareas at the beginning. |
| if (false) { |
| mWebTextView.setText(text, 0, text.length()); |
| } else if (isTextField) { |
| int length = text.length(); |
| mWebTextView.setText(text, length, length); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "rebuildWebTextView length=" + length); |
| } |
| } else { |
| mWebTextView.setText(text, 0, 0); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "rebuildWebTextView !isTextField"); |
| } |
| } |
| } |
| mWebTextView.requestFocus(); |
| } |
| } |
| |
| /* |
| * 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; |
| |
| public RequestFormData(String name, String url, Message msg) { |
| mName = name; |
| mUrl = url; |
| mUpdateMessage = msg; |
| } |
| |
| public void run() { |
| ArrayList<String> pastEntries = mDatabase.getFormData(mUrl, mName); |
| if (pastEntries.size() > 0) { |
| AutoCompleteAdapter adapter = new |
| AutoCompleteAdapter(mContext, pastEntries); |
| mUpdateMessage.obj = adapter; |
| mUpdateMessage.sendToTarget(); |
| } |
| } |
| } |
| |
| // 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 onKeyDown(int keyCode, KeyEvent event) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "keyDown at " + System.currentTimeMillis() |
| + ", " + event + ", unicode=" + event.getUnicodeChar()); |
| } |
| |
| 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; or |
| // 3. webview is in scroll-zoom state; |
| if (event.isSystem() |
| || mCallbackProxy.uiOverrideKeyEvent(event) |
| || (mTouchMode >= FIRST_SCROLL_ZOOM && mTouchMode <= LAST_SCROLL_ZOOM)) { |
| return false; |
| } |
| |
| if (mShiftIsPressed == false && nativeCursorWantsKeyEvents() == false |
| && (keyCode == KeyEvent.KEYCODE_SHIFT_LEFT |
| || keyCode == KeyEvent.KEYCODE_SHIFT_RIGHT)) { |
| mExtendSelection = false; |
| mShiftIsPressed = true; |
| if (nativeHasCursorNode()) { |
| Rect rect = nativeCursorNodeBounds(); |
| mSelectX = contentToView(rect.left); |
| mSelectY = contentToView(rect.top); |
| } else { |
| mSelectX = mScrollX + (int) mLastTouchX; |
| mSelectY = mScrollY + (int) mLastTouchY; |
| } |
| nativeHideCursor(); |
| } |
| |
| if (keyCode >= KeyEvent.KEYCODE_DPAD_UP |
| && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) { |
| // always handle the navigation keys in the UI thread |
| switchOutDrawHistory(); |
| if (navHandledKey(keyCode, 1, false, event.getEventTime(), false)) { |
| 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(); |
| if (event.getRepeatCount() == 0) { |
| 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); |
| return true; |
| } |
| // Bubble up the key event as WebView doesn't handle it |
| return false; |
| } |
| |
| if (keyCode != KeyEvent.KEYCODE_SHIFT_LEFT |
| && keyCode != KeyEvent.KEYCODE_SHIFT_RIGHT) { |
| // turn off copy select if a shift-key combo is pressed |
| mExtendSelection = mShiftIsPressed = false; |
| if (mTouchMode == TOUCH_SELECT_MODE) { |
| mTouchMode = TOUCH_INIT_MODE; |
| } |
| } |
| |
| if (getSettings().getNavDump()) { |
| switch (keyCode) { |
| case KeyEvent.KEYCODE_4: |
| // "/data/data/com.android.browser/displayTree.txt" |
| nativeDumpDisplayTree(getUrl()); |
| break; |
| case KeyEvent.KEYCODE_5: |
| case KeyEvent.KEYCODE_6: |
| // 5: dump the dom tree to the file |
| // "/data/data/com.android.browser/domTree.txt" |
| // 6: dump the dom tree to the adb log |
| mWebViewCore.sendMessage(EventHub.DUMP_DOMTREE, |
| (keyCode == KeyEvent.KEYCODE_5) ? 1 : 0, 0); |
| break; |
| case KeyEvent.KEYCODE_7: |
| case KeyEvent.KEYCODE_8: |
| // 7: dump the render tree to the file |
| // "/data/data/com.android.browser/renderTree.txt" |
| // 8: dump the render tree to the adb log |
| mWebViewCore.sendMessage(EventHub.DUMP_RENDERTREE, |
| (keyCode == KeyEvent.KEYCODE_7) ? 1 : 0, 0); |
| break; |
| case KeyEvent.KEYCODE_9: |
| nativeInstrumentReport(); |
| return true; |
| } |
| } |
| |
| if (nativeCursorIsPlugin()) { |
| nativeUpdatePluginReceivesEvents(); |
| invalidate(); |
| } else if (nativeCursorIsTextInput()) { |
| // This message will put the node in focus, for the DOM's notion |
| // of focus, and make the focuscontroller active |
| mWebViewCore.sendMessage(EventHub.CLICK); |
| // 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 |
| return mWebTextView.onKeyDown(keyCode, 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()) { |
| return mWebTextView.onKeyDown(keyCode, 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 (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; |
| } |
| |
| // special handling in scroll_zoom state |
| if (mTouchMode >= FIRST_SCROLL_ZOOM && mTouchMode <= LAST_SCROLL_ZOOM) { |
| if (KeyEvent.KEYCODE_DPAD_CENTER == keyCode |
| && mTouchMode != SCROLL_ZOOM_ANIMATION_IN) { |
| setZoomScrollIn(); |
| mTouchMode = SCROLL_ZOOM_ANIMATION_IN; |
| invalidate(); |
| return true; |
| } |
| return false; |
| } |
| |
| if (keyCode == KeyEvent.KEYCODE_SHIFT_LEFT |
| || keyCode == KeyEvent.KEYCODE_SHIFT_RIGHT) { |
| if (commitCopy()) { |
| return true; |
| } |
| } |
| |
| if (keyCode >= KeyEvent.KEYCODE_DPAD_UP |
| && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) { |
| // always handle the navigation keys in the UI thread |
| // Bubble up the key event as WebView doesn't handle it |
| return false; |
| } |
| |
| if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) { |
| // remove the long press message first |
| mPrivateHandler.removeMessages(LONG_PRESS_CENTER); |
| mGotCenterDown = false; |
| |
| if (mShiftIsPressed) { |
| return false; |
| } |
| if (getSettings().supportZoom() |
| && mTouchMode == TOUCH_DOUBLECLICK_MODE) { |
| zoomScrollOut(); |
| } else { |
| mPrivateHandler.sendMessageDelayed(mPrivateHandler |
| .obtainMessage(SWITCH_TO_CLICK), TAP_TIMEOUT); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "TOUCH_DOUBLECLICK_MODE"); |
| } |
| mTouchMode = TOUCH_DOUBLECLICK_MODE; |
| } |
| 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; |
| } |
| |
| /** |
| * @hide |
| */ |
| public void emulateShiftHeld() { |
| mExtendSelection = false; |
| mShiftIsPressed = true; |
| nativeHideCursor(); |
| } |
| |
| private boolean commitCopy() { |
| boolean copiedSomething = false; |
| if (mExtendSelection) { |
| // copy region so core operates on copy without touching orig. |
| Region selection = new Region(nativeGetSelection()); |
| if (selection.isEmpty() == false) { |
| Toast.makeText(mContext |
| , com.android.internal.R.string.text_copied |
| , Toast.LENGTH_SHORT).show(); |
| mWebViewCore.sendMessage(EventHub.GET_SELECTION, selection); |
| copiedSomething = true; |
| } |
| mExtendSelection = false; |
| } |
| mShiftIsPressed = false; |
| if (mTouchMode == TOUCH_SELECT_MODE) { |
| mTouchMode = TOUCH_INIT_MODE; |
| } |
| return copiedSomething; |
| } |
| |
| // Set this as a hierarchy change listener so we can know when this view |
| // is removed and still have access to our parent. |
| @Override |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| ViewParent parent = getParent(); |
| if (parent instanceof ViewGroup) { |
| ViewGroup p = (ViewGroup) parent; |
| p.setOnHierarchyChangeListener(this); |
| } |
| } |
| |
| @Override |
| protected void onDetachedFromWindow() { |
| super.onDetachedFromWindow(); |
| ViewParent parent = getParent(); |
| if (parent instanceof ViewGroup) { |
| ViewGroup p = (ViewGroup) parent; |
| p.setOnHierarchyChangeListener(null); |
| } |
| |
| // Clean up the zoom controller |
| mZoomButtonsController.setVisible(false); |
| } |
| |
| // Implementation for OnHierarchyChangeListener |
| public void onChildViewAdded(View parent, View child) {} |
| |
| public void onChildViewRemoved(View p, View child) { |
| if (child == this) { |
| clearTextEntry(); |
| } |
| } |
| |
| /** |
| * @deprecated WebView should not have implemented |
| * ViewTreeObserver.OnGlobalFocusChangeListener. This method |
| * does nothing now. |
| */ |
| @Deprecated |
| public void onGlobalFocusChanged(View oldFocus, View newFocus) { |
| } |
| |
| // To avoid drawing the cursor ring, and remove the TextView when our window |
| // loses focus. |
| @Override |
| public void onWindowFocusChanged(boolean hasWindowFocus) { |
| if (hasWindowFocus) { |
| if (hasFocus()) { |
| // If our window regained focus, and we have focus, then begin |
| // drawing the cursor ring |
| mDrawCursorRing = true; |
| if (mNativeClass != 0) { |
| nativeRecordButtons(true, false, true); |
| if (inEditingMode()) { |
| mWebViewCore.sendMessage(EventHub.SET_ACTIVE, 1, 0); |
| } |
| } |
| } else { |
| // If our window gained focus, but we do not have it, do not |
| // draw the cursor ring. |
| mDrawCursorRing = 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 (getSettings().getBuiltInZoomControls() && !mZoomButtonsController.isVisible()) { |
| /* |
| * The 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. |
| */ |
| // If our window has lost focus, stop drawing the cursor ring |
| mDrawCursorRing = false; |
| } |
| mGotKeyDown = false; |
| mShiftIsPressed = false; |
| if (mNativeClass != 0) { |
| nativeRecordButtons(false, false, true); |
| } |
| setFocusControllerInactive(); |
| } |
| invalidate(); |
| 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. |
| */ |
| private void setFocusControllerInactive() { |
| // Do not need to also check whether mWebViewCore is null, because |
| // mNativeClass is only set if mWebViewCore is non null |
| if (mNativeClass == 0) return; |
| mWebViewCore.sendMessage(EventHub.SET_ACTIVE, 0, 0); |
| } |
| |
| @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); |
| } |
| //} 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); |
| } |
| setFocusControllerInactive(); |
| } |
| mGotKeyDown = false; |
| } |
| |
| super.onFocusChanged(focused, direction, previouslyFocusedRect); |
| } |
| |
| @Override |
| protected void onSizeChanged(int w, int h, int ow, int oh) { |
| super.onSizeChanged(w, h, ow, oh); |
| // Center zooming to the center of the screen. |
| mZoomCenterX = getViewWidth() * .5f; |
| mZoomCenterY = getViewHeight() * .5f; |
| |
| // update mMinZoomScale if the minimum zoom scale is not fixed |
| if (!mMinZoomScaleFixed) { |
| mMinZoomScale = (float) getViewWidth() |
| / Math.max(ZOOM_OUT_WIDTH, mContentWidth); |
| } |
| |
| // we always force, in case our height changed, in which case we still |
| // want to send the notification over to webkit |
| setNewZoomScale(mActualScale, true); |
| } |
| |
| @Override |
| protected void onScrollChanged(int l, int t, int oldl, int oldt) { |
| super.onScrollChanged(l, t, oldl, oldt); |
| |
| sendOurVisibleRect(); |
| } |
| |
| |
| @Override |
| public boolean dispatchKeyEvent(KeyEvent event) { |
| boolean dispatch = true; |
| |
| if (!inEditingMode()) { |
| if (event.getAction() == KeyEvent.ACTION_DOWN) { |
| mGotKeyDown = true; |
| } else { |
| if (!mGotKeyDown) { |
| /* |
| * We got a key up for which we were not the recipient of |
| * the original key down. Don't give it to the view. |
| */ |
| dispatch = false; |
| } |
| mGotKeyDown = false; |
| } |
| } |
| |
| if (dispatch) { |
| return super.dispatchKeyEvent(event); |
| } else { |
| // We didn't dispatch, so let something else handle the key |
| return false; |
| } |
| } |
| |
| // Here are 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; |
| // 3. If there is a same direction back and forth, lock it. |
| |
| // adjustable parameters |
| private int mMinLockSnapReverseDistance; |
| private static final float MAX_SLOPE_FOR_DIAG = 1.5f; |
| private static final int MIN_BREAK_SNAP_CROSS_DISTANCE = 80; |
| |
| @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); |
| } |
| |
| int action = ev.getAction(); |
| float x = ev.getX(); |
| float y = ev.getY(); |
| 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. |
| if (x > getViewWidth() - 1) { |
| x = getViewWidth() - 1; |
| } |
| if (y > getViewHeight() - 1) { |
| y = getViewHeight() - 1; |
| } |
| |
| // pass the touch events from UI thread to WebCore thread |
| if (mForwardTouchEvents && mTouchMode != SCROLL_ZOOM_OUT |
| && mTouchMode != SCROLL_ZOOM_ANIMATION_IN |
| && mTouchMode != SCROLL_ZOOM_ANIMATION_OUT |
| && (action != MotionEvent.ACTION_MOVE || |
| eventTime - mLastSentTouchTime > TOUCH_SENT_INTERVAL)) { |
| WebViewCore.TouchEventData ted = new WebViewCore.TouchEventData(); |
| ted.mAction = action; |
| ted.mX = viewToContent((int) x + mScrollX); |
| ted.mY = viewToContent((int) y + mScrollY); |
| mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); |
| mLastSentTouchTime = eventTime; |
| } |
| |
| int deltaX = (int) (mLastTouchX - x); |
| int deltaY = (int) (mLastTouchY - y); |
| |
| switch (action) { |
| case MotionEvent.ACTION_DOWN: { |
| if (mTouchMode == SCROLL_ZOOM_ANIMATION_IN |
| || mTouchMode == SCROLL_ZOOM_ANIMATION_OUT) { |
| // no interaction while animation is in progress |
| break; |
| } else if (mTouchMode == SCROLL_ZOOM_OUT) { |
| mLastScrollX = mZoomScrollX; |
| mLastScrollY = mZoomScrollY; |
| // If two taps are close, ignore the first tap |
| } else if (!mScroller.isFinished()) { |
| mScroller.abortAnimation(); |
| mTouchMode = TOUCH_DRAG_START_MODE; |
| mPrivateHandler.removeMessages(RESUME_WEBCORE_UPDATE); |
| } else if (mShiftIsPressed) { |
| mSelectX = mScrollX + (int) x; |
| mSelectY = mScrollY + (int) y; |
| mTouchMode = TOUCH_SELECT_MODE; |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "select=" + mSelectX + "," + mSelectY); |
| } |
| nativeMoveSelection(viewToContent(mSelectX) |
| , viewToContent(mSelectY), false); |
| mTouchSelection = mExtendSelection = true; |
| } else { |
| mTouchMode = TOUCH_INIT_MODE; |
| mPreventDrag = mForwardTouchEvents; |
| if (mLogEvent && eventTime - mLastTouchUpTime < 1000) { |
| EventLog.writeEvent(EVENT_LOG_DOUBLE_TAP_DURATION, |
| (eventTime - mLastTouchUpTime), eventTime); |
| } |
| } |
| // Trigger the link |
| if (mTouchMode == TOUCH_INIT_MODE) { |
| mPrivateHandler.sendMessageDelayed(mPrivateHandler |
| .obtainMessage(SWITCH_TO_SHORTPRESS), TAP_TIMEOUT); |
| } |
| // Remember where the motion event started |
| mLastTouchX = x; |
| mLastTouchY = y; |
| mLastTouchTime = eventTime; |
| mVelocityTracker = VelocityTracker.obtain(); |
| mSnapScrollMode = SNAP_NONE; |
| break; |
| } |
| case MotionEvent.ACTION_MOVE: { |
| if (mTouchMode == TOUCH_DONE_MODE |
| || mTouchMode == SCROLL_ZOOM_ANIMATION_IN |
| || mTouchMode == SCROLL_ZOOM_ANIMATION_OUT) { |
| // no dragging during scroll zoom animation |
| break; |
| } |
| if (mTouchMode == SCROLL_ZOOM_OUT) { |
| // while fully zoomed out, move the virtual window |
| moveZoomScrollWindow(x, y); |
| break; |
| } |
| mVelocityTracker.addMovement(ev); |
| |
| if (mTouchMode != TOUCH_DRAG_MODE) { |
| if (mTouchMode == TOUCH_SELECT_MODE) { |
| mSelectX = mScrollX + (int) x; |
| mSelectY = mScrollY + (int) y; |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "xtend=" + mSelectX + "," + mSelectY); |
| } |
| nativeMoveSelection(viewToContent(mSelectX) |
| , viewToContent(mSelectY), true); |
| invalidate(); |
| break; |
| } |
| if (mPreventDrag || (deltaX * deltaX + deltaY * deltaY) |
| < mTouchSlopSquare) { |
| break; |
| } |
| |
| if (mTouchMode == TOUCH_SHORTPRESS_MODE |
| || mTouchMode == TOUCH_SHORTPRESS_START_MODE) { |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| } else if (mTouchMode == TOUCH_INIT_MODE) { |
| mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); |
| } |
| |
| // if it starts nearly horizontal or vertical, enforce it |
| int ax = Math.abs(deltaX); |
| int ay = Math.abs(deltaY); |
| if (ax > MAX_SLOPE_FOR_DIAG * ay) { |
| mSnapScrollMode = SNAP_X; |
| mSnapPositive = deltaX > 0; |
| } else if (ay > MAX_SLOPE_FOR_DIAG * ax) { |
| mSnapScrollMode = SNAP_Y; |
| mSnapPositive = deltaY > 0; |
| } |
| |
| mTouchMode = TOUCH_DRAG_MODE; |
| WebViewCore.pauseUpdate(mWebViewCore); |
| nativeHideCursor(); |
| // remove the zoom anchor if there is any |
| if (mZoomScale != 0) { |
| mWebViewCore |
| .sendMessage(EventHub.SET_SNAP_ANCHOR, 0, 0); |
| } |
| WebSettings settings = getSettings(); |
| if (settings.supportZoom() |
| && settings.getBuiltInZoomControls() |
| && !mZoomButtonsController.isVisible() |
| && (canZoomScrollOut() || |
| mMinZoomScale < mMaxZoomScale)) { |
| mZoomButtonsController.setVisible(true); |
| } |
| } |
| |
| // do pan |
| int newScrollX = pinLocX(mScrollX + deltaX); |
| deltaX = newScrollX - mScrollX; |
| int newScrollY = pinLocY(mScrollY + deltaY); |
| deltaY = newScrollY - mScrollY; |
| boolean done = false; |
| if (deltaX == 0 && deltaY == 0) { |
| done = true; |
| } else { |
| if (mSnapScrollMode == SNAP_X || mSnapScrollMode == SNAP_Y) { |
| int ax = Math.abs(deltaX); |
| int ay = Math.abs(deltaY); |
| if (mSnapScrollMode == SNAP_X) { |
| // radical change means getting out of snap mode |
| if (ay > MAX_SLOPE_FOR_DIAG * ax |
| && ay > MIN_BREAK_SNAP_CROSS_DISTANCE) { |
| mSnapScrollMode = SNAP_NONE; |
| } |
| // reverse direction means lock in the snap mode |
| if ((ax > MAX_SLOPE_FOR_DIAG * ay) && |
| ((mSnapPositive && |
| deltaX < -mMinLockSnapReverseDistance) |
| || (!mSnapPositive && |
| deltaX > mMinLockSnapReverseDistance))) { |
| mSnapScrollMode = SNAP_X_LOCK; |
| } |
| } else { |
| // radical change means getting out of snap mode |
| if ((ax > MAX_SLOPE_FOR_DIAG * ay) |
| && ax > MIN_BREAK_SNAP_CROSS_DISTANCE) { |
| mSnapScrollMode = SNAP_NONE; |
| } |
| // reverse direction means lock in the snap mode |
| if ((ay > MAX_SLOPE_FOR_DIAG * ax) && |
| ((mSnapPositive && |
| deltaY < -mMinLockSnapReverseDistance) |
| || (!mSnapPositive && |
| deltaY > mMinLockSnapReverseDistance))) { |
| mSnapScrollMode = SNAP_Y_LOCK; |
| } |
| } |
| } |
| |
| if (mSnapScrollMode == SNAP_X |
| || mSnapScrollMode == SNAP_X_LOCK) { |
| scrollBy(deltaX, 0); |
| mLastTouchX = x; |
| } else if (mSnapScrollMode == SNAP_Y |
| || mSnapScrollMode == SNAP_Y_LOCK) { |
| scrollBy(0, deltaY); |
| mLastTouchY = y; |
| } else { |
| scrollBy(deltaX, deltaY); |
| mLastTouchX = x; |
| mLastTouchY = y; |
| } |
| mLastTouchTime = eventTime; |
| mUserScroll = true; |
| } |
| |
| if (!getSettings().getBuiltInZoomControls()) { |
| boolean showPlusMinus = mMinZoomScale < mMaxZoomScale; |
| boolean showMagnify = canZoomScrollOut(); |
| if (mZoomControls != null && (showPlusMinus || showMagnify)) { |
| if (mZoomControls.getVisibility() == View.VISIBLE) { |
| mPrivateHandler.removeCallbacks(mZoomControlRunnable); |
| } else { |
| mZoomControls.show(showPlusMinus, showMagnify); |
| } |
| mPrivateHandler.postDelayed(mZoomControlRunnable, |
| ZOOM_CONTROLS_TIMEOUT); |
| } |
| } |
| |
| if (done) { |
| // return false to indicate that we can't pan out of the |
| // view space |
| return false; |
| } |
| break; |
| } |
| case MotionEvent.ACTION_UP: { |
| mLastTouchUpTime = eventTime; |
| switch (mTouchMode) { |
| case TOUCH_INIT_MODE: // tap |
| case TOUCH_SHORTPRESS_START_MODE: |
| case TOUCH_SHORTPRESS_MODE: |
| mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| mTouchMode = TOUCH_DONE_MODE; |
| doShortPress(); |
| break; |
| case TOUCH_SELECT_MODE: |
| commitCopy(); |
| mTouchSelection = false; |
| break; |
| case SCROLL_ZOOM_ANIMATION_IN: |
| case SCROLL_ZOOM_ANIMATION_OUT: |
| // no action during scroll animation |
| break; |
| case SCROLL_ZOOM_OUT: |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "ACTION_UP SCROLL_ZOOM_OUT" |
| + " eventTime - mLastTouchTime=" |
| + (eventTime - mLastTouchTime)); |
| } |
| // for now, always zoom back when the drag completes |
| if (true || eventTime - mLastTouchTime < TAP_TIMEOUT) { |
| // but if we tap, zoom in where we tap |
| if (eventTime - mLastTouchTime < TAP_TIMEOUT) { |
| zoomScrollTap(x, y); |
| } |
| // start zooming in back to the original view |
| setZoomScrollIn(); |
| mTouchMode = SCROLL_ZOOM_ANIMATION_IN; |
| invalidate(); |
| } |
| break; |
| case TOUCH_DRAG_MODE: |
| // 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) { |
| mVelocityTracker.addMovement(ev); |
| doFling(); |
| break; |
| } |
| WebViewCore.resumeUpdate(mWebViewCore); |
| break; |
| case TOUCH_DRAG_START_MODE: |
| case TOUCH_DONE_MODE: |
| // do nothing |
| break; |
| } |
| // 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; |
| } |
| break; |
| } |
| case MotionEvent.ACTION_CANCEL: { |
| // 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 == SCROLL_ZOOM_OUT || |
| mTouchMode == SCROLL_ZOOM_ANIMATION_IN) { |
| scrollTo(mZoomScrollX, mZoomScrollY); |
| } else if (mTouchMode == TOUCH_DRAG_MODE) { |
| WebViewCore.resumeUpdate(mWebViewCore); |
| } |
| mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| mTouchMode = TOUCH_DONE_MODE; |
| nativeHideCursor(); |
| break; |
| } |
| } |
| return true; |
| } |
| |
| 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 mExtendSelection = false; |
| private boolean mTouchSelection = 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 int mSelectX = 0; |
| private int mSelectY = 0; |
| private boolean mShiftIsPressed = 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; |
| |
| public void setMapTrackballToArrowKeys(boolean setMap) { |
| 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) { |
| mPrivateHandler.removeMessages(SWITCH_TO_CLICK); |
| 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 (mShiftIsPressed) { |
| if (mExtendSelection) { |
| commitCopy(); |
| } else { |
| mExtendSelection = true; |
| } |
| } |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "onTrackballEvent up ev=" + ev |
| + " time=" + time |
| ); |
| } |
| return false; // let common code in onKeyUp at it |
| } |
| if (mMapTrackballToArrowKeys && mShiftIsPressed == false) { |
| if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent gmail quit"); |
| return false; |
| } |
| // no move if we're still waiting on SWITCH_TO_CLICK timeout |
| if (mTouchMode == TOUCH_DOUBLECLICK_MODE) { |
| if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent 2 click quit"); |
| return true; |
| } |
| 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); |
| return true; |
| } |
| |
| void moveSelection(float xRate, float yRate) { |
| if (mNativeClass == 0) |
| return; |
| int width = getViewWidth(); |
| int height = getViewHeight(); |
| mSelectX += scaleTrackballX(xRate, width); |
| mSelectY += scaleTrackballY(yRate, height); |
| 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(viewToContent(mSelectX) |
| , viewToContent(mSelectY), mExtendSelection); |
| 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 elapsed = (int) (mTrackballLastTime - mTrackballFirstTime); |
| if (elapsed == 0) { |
| elapsed = TRACKBALL_TIMEOUT; |
| } |
| float xRate = mTrackballRemainsX * 1000 / elapsed; |
| float yRate = mTrackballRemainsY * 1000 / elapsed; |
| if (mShiftIsPressed) { |
| moveSelection(xRate, yRate); |
| 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 - getViewWidth(); |
| int height = mContentHeight - getViewHeight(); |
| if (width < 0) width = 0; |
| if (height < 0) height = 0; |
| if (mTouchMode == SCROLL_ZOOM_OUT) { |
| int oldX = mZoomScrollX; |
| int oldY = mZoomScrollY; |
| int maxWH = Math.max(width, height); |
| mZoomScrollX += scaleTrackballX(xRate, maxWH); |
| mZoomScrollY += scaleTrackballY(yRate, maxWH); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "doTrackball SCROLL_ZOOM_OUT" |
| + " mZoomScrollX=" + mZoomScrollX |
| + " mZoomScrollY=" + mZoomScrollY); |
| } |
| mZoomScrollX = Math.min(width, Math.max(0, mZoomScrollX)); |
| mZoomScrollY = Math.min(height, Math.max(0, mZoomScrollY)); |
| if (oldX != mZoomScrollX || oldY != mZoomScrollY) { |
| invalidate(); |
| } |
| mTrackballRemainsX = mTrackballRemainsY = 0; |
| return; |
| } |
| 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 (navHandledKey(selectKeyCode, count, false, time, false)) { |
| 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); |
| } |
| mUserScroll = true; |
| } |
| } |
| |
| public void flingScroll(int vx, int vy) { |
| int maxX = Math.max(computeHorizontalScrollRange() - getViewWidth(), 0); |
| int maxY = Math.max(computeVerticalScrollRange() - getViewHeight(), 0); |
| |
| mScroller.fling(mScrollX, mScrollY, vx, vy, 0, maxX, 0, maxY); |
| invalidate(); |
| } |
| |
| private void doFling() { |
| if (mVelocityTracker == null) { |
| return; |
| } |
| int maxX = Math.max(computeHorizontalScrollRange() - getViewWidth(), 0); |
| int maxY = Math.max(computeVerticalScrollRange() - getViewHeight(), 0); |
| |
| mVelocityTracker.computeCurrentVelocity(1000, mMaximumFling); |
| int vx = (int) mVelocityTracker.getXVelocity(); |
| int vy = (int) mVelocityTracker.getYVelocity(); |
| |
| if (mSnapScrollMode != SNAP_NONE) { |
| if (mSnapScrollMode == SNAP_X || mSnapScrollMode == SNAP_X_LOCK) { |
| vy = 0; |
| } else { |
| vx = 0; |
| } |
| } |
| |
| if (true /* EMG release: make our fling more like Maps' */) { |
| // maps cuts their velocity in half |
| vx = vx * 3 / 4; |
| vy = vy * 3 / 4; |
| } |
| |
| mScroller.fling(mScrollX, mScrollY, -vx, -vy, 0, maxX, 0, maxY); |
| // TODO: duration is calculated based on velocity, if the range is |
| // small, the animation will stop before duration is up. We may |
| // want to calculate how long the animation is going to run to precisely |
| // resume the webcore update. |
| final int time = mScroller.getDuration(); |
| mPrivateHandler.sendEmptyMessageDelayed(RESUME_WEBCORE_UPDATE, time); |
| invalidate(); |
| } |
| |
| private boolean zoomWithPreview(float scale) { |
| float oldScale = mActualScale; |
| |
| // snap to DEFAULT_SCALE if it is close |
| if (scale > (mDefaultScale - 0.05) && scale < (mDefaultScale + 0.05)) { |
| scale = mDefaultScale; |
| } |
| |
| setNewZoomScale(scale, false); |
| |
| if (oldScale != mActualScale) { |
| // use mZoomPickerScale to see zoom preview first |
| mZoomStart = SystemClock.uptimeMillis(); |
| mInvInitialZoomScale = 1.0f / oldScale; |
| mInvFinalZoomScale = 1.0f / mActualScale; |
| mZoomScale = mActualScale; |
| invalidate(); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| /** |
| * 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() { |
| if (!getSettings().supportZoom()) { |
| Log.w(LOGTAG, "This WebView doesn't support zoom."); |
| return null; |
| } |
| if (mZoomControls == null) { |
| mZoomControls = createZoomControls(); |
| |
| /* |
| * need to be set to VISIBLE first so that getMeasuredHeight() in |
| * {@link #onSizeChanged()} can return the measured value for proper |
| * layout. |
| */ |
| mZoomControls.setVisibility(View.VISIBLE); |
| mZoomControlRunnable = new Runnable() { |
| public void run() { |
| |
| /* Don't dismiss the controls if the user has |
| * focus on them. Wait and check again later. |
| */ |
| if (!mZoomControls.hasFocus()) { |
| mZoomControls.hide(); |
| } else { |
| mPrivateHandler.removeCallbacks(mZoomControlRunnable); |
| mPrivateHandler.postDelayed(mZoomControlRunnable, |
| ZOOM_CONTROLS_TIMEOUT); |
| } |
| } |
| }; |
| } |
| return mZoomControls; |
| } |
| |
| private ExtendedZoomControls createZoomControls() { |
| ExtendedZoomControls zoomControls = new ExtendedZoomControls(mContext |
| , null); |
| zoomControls.setOnZoomInClickListener(new OnClickListener() { |
| public void onClick(View v) { |
| // reset time out |
| mPrivateHandler.removeCallbacks(mZoomControlRunnable); |
| mPrivateHandler.postDelayed(mZoomControlRunnable, |
| ZOOM_CONTROLS_TIMEOUT); |
| zoomIn(); |
| } |
| }); |
| zoomControls.setOnZoomOutClickListener(new OnClickListener() { |
| public void onClick(View v) { |
| // reset time out |
| mPrivateHandler.removeCallbacks(mZoomControlRunnable); |
| mPrivateHandler.postDelayed(mZoomControlRunnable, |
| ZOOM_CONTROLS_TIMEOUT); |
| zoomOut(); |
| } |
| }); |
| zoomControls.setOnZoomMagnifyClickListener(new OnClickListener() { |
| public void onClick(View v) { |
| mPrivateHandler.removeCallbacks(mZoomControlRunnable); |
| mPrivateHandler.postDelayed(mZoomControlRunnable, |
| ZOOM_CONTROLS_TIMEOUT); |
| zoomScrollOut(); |
| } |
| }); |
| return zoomControls; |
| } |
| |
| /** |
| * Gets the {@link ZoomButtonsController} which can be used to add |
| * additional buttons to the zoom controls window. |
| * |
| * @return The instance of {@link ZoomButtonsController} used by this class, |
| * or null if it is unavailable. |
| * @hide |
| */ |
| public ZoomButtonsController getZoomButtonsController() { |
| return mZoomButtonsController; |
| } |
| |
| /** |
| * Perform zoom in in the webview |
| * @return TRUE if zoom in succeeds. FALSE if no zoom changes. |
| */ |
| public boolean zoomIn() { |
| // TODO: alternatively we can disallow this during draw history mode |
| switchOutDrawHistory(); |
| return zoomWithPreview(mActualScale * 1.25f); |
| } |
| |
| /** |
| * Perform zoom out in the webview |
| * @return TRUE if zoom out succeeds. FALSE if no zoom changes. |
| */ |
| public boolean zoomOut() { |
| // TODO: alternatively we can disallow this during draw history mode |
| switchOutDrawHistory(); |
| return zoomWithPreview(mActualScale * 0.8f); |
| } |
| |
| private void updateSelection() { |
| if (mNativeClass == 0) { |
| return; |
| } |
| // mLastTouchX and mLastTouchY are the point in the current viewport |
| int contentX = viewToContent((int) mLastTouchX + mScrollX); |
| int contentY = viewToContent((int) mLastTouchY + mScrollY); |
| Rect rect = new Rect(contentX - mNavSlop, contentY - mNavSlop, |
| contentX + mNavSlop, contentY + mNavSlop); |
| nativeSelectBestAt(rect); |
| } |
| |
| /** |
| * 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 = x + (float) (mWebTextView.getLeft() - mScrollX); |
| mLastTouchY = y + (float) (mWebTextView.getTop() - mScrollY); |
| mLastTouchTime = eventTime; |
| if (!mScroller.isFinished()) { |
| mScroller.abortAnimation(); |
| mPrivateHandler.removeMessages(RESUME_WEBCORE_UPDATE); |
| } |
| 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; |
| } |
| event.offsetLocation((float) (mWebTextView.getLeft() - mScrollX), |
| (float) (mWebTextView.getTop() - mScrollY)); |
| return onTouchEvent(event); |
| } |
| |
| /*package*/ void shortPressOnTextField() { |
| if (inEditingMode()) { |
| View v = mWebTextView; |
| int x = viewToContent((v.getLeft() + v.getRight()) >> 1); |
| int y = viewToContent((v.getTop() + v.getBottom()) >> 1); |
| nativeMotionUp(x, y, mNavSlop); |
| } |
| } |
| |
| private void doShortPress() { |
| if (mNativeClass == 0) { |
| return; |
| } |
| switchOutDrawHistory(); |
| // mLastTouchX and mLastTouchY are the point in the current viewport |
| int contentX = viewToContent((int) mLastTouchX + mScrollX); |
| int contentY = viewToContent((int) mLastTouchY + mScrollY); |
| if (nativeMotionUp(contentX, contentY, mNavSlop)) { |
| if (mLogEvent) { |
| Checkin.updateStats(mContext.getContentResolver(), |
| Checkin.Stats.Tag.BROWSER_SNAP_CENTER, 1, 0.0); |
| } |
| } |
| if (nativeHasCursorNode() && !nativeCursorIsTextInput()) { |
| playSoundEffect(SoundEffectConstants.CLICK); |
| } |
| } |
| |
| // 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); |
| } |
| |
| // called by JNI |
| private void sendPluginState(int state) { |
| WebViewCore.PluginStateData psd = new WebViewCore.PluginStateData(); |
| psd.mFrame = nativeCursorFramePointer(); |
| psd.mNode = nativeCursorNodePointer(); |
| psd.mState = state; |
| mWebViewCore.sendMessage(EventHub.PLUGIN_STATE, psd); |
| } |
| |
| @Override |
| public boolean requestFocus(int direction, Rect previouslyFocusedRect) { |
| boolean result = false; |
| if (inEditingMode()) { |
| result = mWebTextView.requestFocus(direction, |
| previouslyFocusedRect); |
| } else { |
| result = super.requestFocus(direction, previouslyFocusedRect); |
| if (mWebViewCore.getSettings().getNeedInitialFocus()) { |
| // 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, true); |
| } |
| } |
| } |
| 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 = mContentHeight; |
| int contentWidth = 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; |
| } |
| } |
| } 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 { |
| mWidthCanMeasure = false; |
| } |
| |
| synchronized (this) { |
| setMeasuredDimension(measuredWidth, measuredHeight); |
| } |
| } |
| |
| @Override |
| public boolean requestChildRectangleOnScreen(View child, |
| Rect rect, |
| boolean immediate) { |
| rect.offset(child.getLeft() - child.getScrollX(), |
| child.getTop() - child.getScrollY()); |
| |
| int height = getHeight() - getHorizontalScrollbarHeight(); |
| int screenTop = mScrollY; |
| int screenBottom = screenTop + height; |
| |
| 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 width = getWidth() - getVerticalScrollbarWidth(); |
| int screenLeft = mScrollX; |
| int screenRight = screenLeft + width; |
| |
| 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) { |
| if (nativeCursorWantsKeyEvents() && !nativeCursorMatchesFocus()) { |
| mWebViewCore.sendMessage(EventHub.CLICK); |
| } |
| 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); |
| } |
| |
| /* package */ WebViewCore getWebViewCore() { |
| return mWebViewCore; |
| } |
| |
| //------------------------------------------------------------------------- |
| // 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) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, msg.what < REMEMBER_PASSWORD || msg.what |
| > INVAL_RECT_MSG_ID ? Integer.toString(msg.what) |
| : HandlerDebugString[msg.what - REMEMBER_PASSWORD]); |
| } |
| 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 SWITCH_TO_SHORTPRESS: { |
| if (mTouchMode == TOUCH_INIT_MODE) { |
| mTouchMode = TOUCH_SHORTPRESS_START_MODE; |
| updateSelection(); |
| } |
| break; |
| } |
| case SWITCH_TO_LONGPRESS: { |
| if (!mPreventDrag) { |
| mTouchMode = TOUCH_DONE_MODE; |
| performLongClick(); |
| rebuildWebTextView(); |
| } |
| break; |
| } |
| case SWITCH_TO_CLICK: |
| // The user clicked with the trackball, and did not click a |
| // second time, so perform the action of a trackball single |
| // click |
| mTouchMode = TOUCH_DONE_MODE; |
| Rect visibleRect = sendOurVisibleRect(); |
| // Note that sendOurVisibleRect calls viewToContent, so the |
| // coordinates should be in content coordinates. |
| if (!nativeCursorIntersects(visibleRect)) { |
| break; |
| } |
| nativeSetFollowedLink(true); |
| nativeUpdatePluginReceivesEvents(); |
| WebViewCore.CursorData data = cursorData(); |
| mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, data); |
| playSoundEffect(SoundEffectConstants.CLICK); |
| boolean isTextInput = nativeCursorIsTextInput(); |
| if (isTextInput || !mCallbackProxy.uiOverrideUrlLoading( |
| nativeCursorText())) { |
| mWebViewCore.sendMessage(EventHub.CLICK, data.mFrame, |
| nativeCursorNodePointer()); |
| } |
| if (isTextInput) { |
| rebuildWebTextView(); |
| } |
| break; |
| case SCROLL_BY_MSG_ID: |
| setContentScrollBy(msg.arg1, msg.arg2, (Boolean) msg.obj); |
| break; |
| case SYNC_SCROLL_TO_MSG_ID: |
| if (mUserScroll) { |
| // if user has scrolled explicitly, don't sync the |
| // scroll position any more |
| mUserScroll = false; |
| break; |
| } |
| // fall through |
| case SCROLL_TO_MSG_ID: |
| if (setContentScrollTo(msg.arg1, msg.arg2)) { |
| // if we can't scroll to the exact position due to pin, |
| // send a message to WebCore to re-scroll when we get a |
| // new picture |
| mUserScroll = false; |
| mWebViewCore.sendMessage(EventHub.SYNC_SCROLL, |
| msg.arg1, msg.arg2); |
| } |
| break; |
| case SPAWN_SCROLL_TO_MSG_ID: |
| spawnContentScrollTo(msg.arg1, msg.arg2); |
| break; |
| case NEW_PICTURE_MSG_ID: |
| // called for new content |
| final WebViewCore.DrawData draw = |
| (WebViewCore.DrawData) msg.obj; |
| final Point viewSize = draw.mViewPoint; |
| if (mZoomScale > 0) { |
| // use the same logic in sendViewSizeZoom() to make sure |
| // the mZoomScale has matched the viewSize so that we |
| // can clear mZoomScale |
| if (Math.round(getViewWidth() / mZoomScale) == viewSize.x) { |
| mZoomScale = 0; |
| mWebViewCore.sendMessage(EventHub.SET_SNAP_ANCHOR, |
| 0, 0); |
| } |
| } |
| if (!mMinZoomScaleFixed) { |
| mMinZoomScale = (float) getViewWidth() |
| / Math.max(ZOOM_OUT_WIDTH, draw.mWidthHeight.x); |
| } |
| // 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; |
| recordNewContentSize(draw.mWidthHeight.x, |
| draw.mWidthHeight.y, updateLayout); |
| if (DebugFlags.WEB_VIEW) { |
| Rect b = draw.mInvalRegion.getBounds(); |
| Log.v(LOGTAG, "NEW_PICTURE_MSG_ID {" + |
| b.left+","+b.top+","+b.right+","+b.bottom+"}"); |
| } |
| invalidate(contentToView(draw.mInvalRegion.getBounds())); |
| if (mPictureListener != null) { |
| mPictureListener.onNewPicture(WebView.this, capturePicture()); |
| } |
| break; |
| case WEBCORE_INITIALIZED_MSG_ID: |
| // nativeCreate sets mNativeClass to a non-zero value |
| nativeCreate(msg.arg1); |
| 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) { |
| mWebTextView.setTextAndKeepSelection( |
| (String) msg.obj); |
| } |
| } |
| break; |
| case DID_FIRST_LAYOUT_MSG_ID: |
| if (mNativeClass == 0) { |
| break; |
| } |
| ScaleLimitData scaleLimit = (ScaleLimitData) msg.obj; |
| int minScale = scaleLimit.mMinScale; |
| if (minScale == 0) { |
| mMinZoomScale = DEFAULT_MIN_ZOOM_SCALE; |
| mMinZoomScaleFixed = false; |
| } else { |
| mMinZoomScale = (float) (minScale / 100.0); |
| mMinZoomScaleFixed = true; |
| } |
| int maxScale = scaleLimit.mMaxScale; |
| if (maxScale == 0) { |
| mMaxZoomScale = DEFAULT_MAX_ZOOM_SCALE; |
| } else { |
| mMaxZoomScale = (float) (maxScale / 100.0); |
| } |
| // If history Picture is drawn, don't update zoomWidth |
| if (mDrawHistory) { |
| break; |
| } |
| int width = getViewWidth(); |
| if (width == 0) { |
| break; |
| } |
| int initialScale = msg.arg1; |
| int viewportWidth = msg.arg2; |
| // start a new page with DEFAULT_SCALE zoom scale. |
| float scale = mDefaultScale; |
| if (mInitialScale > 0) { |
| scale = mInitialScale / 100.0f; |
| } else { |
| if (initialScale < 0) break; |
| if (mWebViewCore.getSettings().getUseWideViewPort()) { |
| // force viewSizeChanged by setting mLastWidthSent |
| // to 0 |
| mLastWidthSent = 0; |
| } |
| if (initialScale == 0) { |
| // if viewportWidth is defined and it is smaller |
| // than the view width, zoom in to fill the view |
| if (viewportWidth > 0 && viewportWidth < width) { |
| scale = (float) width / viewportWidth; |
| } |
| } else { |
| scale = initialScale / 100.0f; |
| } |
| } |
| setNewZoomScale(scale, false); |
| // 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(); |
| break; |
| case MOVE_OUT_OF_PLUGIN: |
| if (nativePluginEatsNavKey()) { |
| navHandledKey(msg.arg1, 1, false, 0, true); |
| } |
| 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()) { |
| mWebTextView.bringIntoView(); |
| 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 UPDATE_CLIPBOARD: |
| String str = (String) msg.obj; |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "UPDATE_CLIPBOARD " + str); |
| } |
| try { |
| IClipboard clip = IClipboard.Stub.asInterface( |
| ServiceManager.getService("clipboard")); |
| clip.setClipboardText(str); |
| } catch (android.os.RemoteException e) { |
| Log.e(LOGTAG, "Clipboard failed", e); |
| } |
| break; |
| case RESUME_WEBCORE_UPDATE: |
| WebViewCore.resumeUpdate(mWebViewCore); |
| break; |
| |
| case LONG_PRESS_CENTER: |
| // as this is shared by keydown and trackballdown, reset all |
| // the states |
| mGotCenterDown = false; |
| mTrackballDown = false; |
| // LONG_PRESS_CENTER is sent as 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) { |
| performLongClick(); |
| } |
| break; |
| |
| case WEBCORE_NEED_TOUCH_EVENTS: |
| mForwardTouchEvents = (msg.arg1 != 0); |
| break; |
| |
| case PREVENT_TOUCH_ID: |
| if (msg.arg1 == MotionEvent.ACTION_DOWN) { |
| mPreventDrag = msg.arg2 == 1; |
| if (mPreventDrag) { |
| mTouchMode = TOUCH_DONE_MODE; |
| } |
| } |
| break; |
| |
| case REQUEST_KEYBOARD: |
| if (msg.arg1 == 0) { |
| hideSoftKeyboard(); |
| } else { |
| displaySoftKeyboard(false); |
| } |
| break; |
| |
| default: |
| super.handleMessage(msg); |
| break; |
| } |
| } |
| } |
| |
| // 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 { |
| String mString; |
| boolean mEnabled; |
| int mId; |
| |
| public String toString() { |
| return mString; |
| } |
| } |
| |
| /** |
| * Subclass ArrayAdapter so we can disable OptionGroupLabels, |
| * and allow filtering. |
| */ |
| private class MyArrayListAdapter extends ArrayAdapter<Container> { |
| public MyArrayListAdapter(Context context, Container[] objects, boolean multiple) { |
| super(context, |
| multiple ? com.android.internal.R.layout.select_dialog_multichoice : |
| com.android.internal.R.layout.select_dialog_singlechoice, |
| objects); |
| } |
| |
| @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 item.mEnabled; |
| } |
| } |
| |
| private InvokeListBox(String[] array, |
| boolean[] 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, boolean[] 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; |
| } |
| |
| 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 onInvalidate() {} |
| } |
| |
| public void run() { |
| final ListView listView = (ListView) LayoutInflater.from(mContext) |
| .inflate(com.android.internal.R.layout.select_dialog, null); |
| final MyArrayListAdapter adapter = new |
| MyArrayListAdapter(mContext, mContainers, mMultiple); |
| 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); |
| }}); |
| } |
| final AlertDialog dialog = 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) { |
| mWebViewCore.sendMessage( |
| EventHub.SINGLE_LISTBOX_CHOICE, (int)id, 0); |
| dialog.dismiss(); |
| } |
| }); |
| 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); |
| } |
| } |
| dialog.setOnCancelListener(new DialogInterface.OnCancelListener() { |
| public void onCancel(DialogInterface dialog) { |
| mWebViewCore.sendMessage( |
| EventHub.SINGLE_LISTBOX_CHOICE, -2, 0); |
| } |
| }); |
| dialog.show(); |
| } |
| } |
| |
| /* |
| * Request a dropdown menu for a listbox with multiple selection. |
| * |
| * @param array Labels for the listbox. |
| * @param enabledArray Which positions are enabled. |
| * @param selectedArray Which positions are initally selected. |
| */ |
| void requestListBox(String[] array, boolean[]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 Which positions are enabled. |
| * @param selection Which position is initally selected. |
| */ |
| void requestListBox(String[] array, boolean[]enabledArray, int selection) { |
| mPrivateHandler.post( |
| new InvokeListBox(array, enabledArray, selection)); |
| } |
| |
| // 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 if the "mouse" cursor is now over a node |
| * which wants key events, but it is not the focus. This |
| * will make the visual appear as though nothing is in |
| * focus. Remove the WebTextView, if present, and stop |
| * drawing the blinking caret. |
| * called by JNI |
| */ |
| private void sendMoveMouseIfLatest(boolean removeFocus) { |
| if (removeFocus) { |
| clearTextEntry(); |
| setFocusControllerInactive(); |
| } |
| mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE_IF_LATEST, |
| cursorData()); |
| } |
| |
| // called by JNI |
| private void sendMotionUp(int touchGeneration, |
| int frame, int node, int x, int y, int size) { |
| WebViewCore.TouchUpData touchUpData = new WebViewCore.TouchUpData(); |
| touchUpData.mMoveGeneration = touchGeneration; |
| touchUpData.mSize = size; |
| touchUpData.mFrame = frame; |
| touchUpData.mNode = node; |
| touchUpData.mX = x; |
| touchUpData.mY = y; |
| 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 viewToContent(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 viewToContent(height); |
| } |
| |
| /** |
| * Called by JNI to invalidate view |
| */ |
| private void viewInvalidate() { |
| invalidate(); |
| } |
| |
| // return true if the key was handled |
| private boolean navHandledKey(int keyCode, int count, boolean noScroll, |
| long time, boolean ignorePlugin) { |
| if (mNativeClass == 0) { |
| return false; |
| } |
| if (ignorePlugin == false && nativePluginEatsNavKey()) { |
| KeyEvent event = new KeyEvent(time, time, KeyEvent.ACTION_DOWN |
| , keyCode, count, (mShiftIsPressed ? KeyEvent.META_SHIFT_ON : 0) |
| | (false ? KeyEvent.META_ALT_ON : 0) // FIXME |
| | (false ? KeyEvent.META_SYM_ON : 0) // FIXME |
| , 0, 0, 0); |
| mWebViewCore.sendMessage(EventHub.KEY_DOWN, event); |
| mWebViewCore.sendMessage(EventHub.KEY_UP, event); |
| return true; |
| } |
| 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 || mHeightCanMeasure == false) { |
| return keyHandled; |
| } |
| Rect contentCursorRingBounds = nativeGetCursorRingBounds(); |
| if (contentCursorRingBounds.isEmpty()) return keyHandled; |
| Rect viewCursorRingBounds = contentToView(contentCursorRingBounds); |
| 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); |
| mUserScroll = true; |
| return keyHandled; |
| } |
| |
| /** |
| * 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 |
| */ |
| public void setBackgroundColor(int color) { |
| mBackgroundColor = color; |
| mWebViewCore.sendMessage(EventHub.SET_BACKGROUND_COLOR, color); |
| } |
| |
| public void debugDump() { |
| nativeDebugDump(); |
| mWebViewCore.sendMessage(EventHub.DUMP_NAVTREE); |
| } |
| |
| /** |
| * Update our cache with updatedText. |
| * @param updatedText The new text to put in our cache. |
| */ |
| /* package */ 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 */ native void nativeClearCursor(); |
| private native void nativeCreate(int ptr); |
| private native int nativeCursorFramePointer(); |
| private native Rect nativeCursorNodeBounds(); |
| /* package */ native int nativeCursorNodePointer(); |
| /* package */ native boolean nativeCursorMatchesFocus(); |
| private native boolean nativeCursorIntersects(Rect visibleRect); |
| private native boolean nativeCursorIsAnchor(); |
| private native boolean nativeCursorIsPlugin(); |
| 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(); |
| private native void nativeDrawCursorRing(Canvas content); |
| private native void nativeDrawMatches(Canvas canvas); |
| private native void nativeDrawSelection(Canvas content |
| , int x, int y, boolean extendSelection); |
| private native void nativeDrawSelectionRegion(Canvas content); |
| private native void nativeDumpDisplayTree(String urlOrNull); |
| private native int nativeFindAll(String findLower, String findUpper); |
| private native void nativeFindNext(boolean forward); |
| private native boolean nativeFocusCandidateIsPassword(); |
| private native boolean nativeFocusCandidateIsRtlText(); |
| private native boolean nativeFocusCandidateIsTextField(); |
| private native boolean nativeFocusCandidateIsTextInput(); |
| private native int nativeFocusCandidateMaxLength(); |
| /* package */ native String nativeFocusCandidateName(); |
| private native Rect nativeFocusCandidateNodeBounds(); |
| /* package */ native int nativeFocusCandidatePointer(); |
| private native String nativeFocusCandidateText(); |
| private native int nativeFocusCandidateTextSize(); |
| /* package */ native int nativeFocusNodePointer(); |
| private native Rect nativeGetCursorRingBounds(); |
| private native Region nativeGetSelection(); |
| private native boolean nativeHasCursorNode(); |
| private native boolean nativeHasFocusNode(); |
| private native void nativeHideCursor(); |
| private native String nativeImageURI(int x, int y); |
| private native void nativeInstrumentReport(); |
| // 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, |
| boolean extendSelection); |
| private native boolean nativePluginEatsNavKey(); |
| // 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 nativeSelectBestAt(Rect rect); |
| private native void nativeSetFindIsDown(); |
| private native void nativeSetFollowedLink(boolean followed); |
| private native void nativeSetHeightCanMeasure(boolean measure); |
| 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 void nativeUpdatePluginReceivesEvents(); |
| } |