| /* |
| * 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.Picture; |
| import android.graphics.Point; |
| import android.graphics.Rect; |
| import android.graphics.Region; |
| import android.graphics.drawable.Drawable; |
| 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.util.TypedValue; |
| 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.CheckedTextView; |
| import android.widget.FrameLayout; |
| import android.widget.LinearLayout; |
| 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; |
| import java.util.Map; |
| |
| import junit.framework.Assert; |
| |
| /** |
| * <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"; |
| |
| 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); |
| findViewById(com.android.internal.R.id.zoomMagnify).setVisibility( |
| View.GONE); |
| } |
| |
| public void show(boolean showZoom, boolean canZoomOut) { |
| mPlusMinusZoomControls.setVisibility( |
| showZoom ? 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 boolean hasFocus() { |
| return mPlusMinusZoomControls.hasFocus(); |
| } |
| |
| public void setOnZoomInClickListener(OnClickListener listener) { |
| mPlusMinusZoomControls.setOnZoomInClickListener(listener); |
| } |
| |
| public void setOnZoomOutClickListener(OnClickListener listener) { |
| mPlusMinusZoomControls.setOnZoomOutClickListener(listener); |
| } |
| |
| ZoomControls mPlusMinusZoomControls; |
| } |
| |
| /** |
| * 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; |
| |
| /** |
| * 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; |
| private float mLastVelocity; |
| private float mLastVelX; |
| private float mLastVelY; |
| |
| /** |
| * Touch mode |
| */ |
| private int mTouchMode = TOUCH_DONE_MODE; |
| private static final int TOUCH_INIT_MODE = 1; |
| private static final int TOUCH_DRAG_START_MODE = 2; |
| private static final int TOUCH_DRAG_MODE = 3; |
| private static final int TOUCH_SHORTPRESS_START_MODE = 4; |
| private static final int TOUCH_SHORTPRESS_MODE = 5; |
| private static final int TOUCH_DOUBLE_TAP_MODE = 6; |
| private static final int TOUCH_DONE_MODE = 7; |
| private static final int TOUCH_SELECT_MODE = 8; |
| |
| // 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 static final int PREVENT_DRAG_NO = 0; |
| private static final int PREVENT_DRAG_MAYBE_YES = 1; |
| private static final int PREVENT_DRAG_YES = 2; |
| private int mPreventDrag = PREVENT_DRAG_NO; |
| |
| // To keep track of whether the current drag was initiated by a WebTextView, |
| // so that we know not to hide the cursor |
| boolean mDragFromTextInput; |
| |
| // Whether or not to draw the cursor ring. |
| private boolean mDrawCursorRing = true; |
| |
| // true if onPause has been called (and not onResume) |
| private boolean mIsPaused; |
| |
| /** |
| * Customizable constant |
| */ |
| // pre-computed square of ViewConfiguration.getScaledTouchSlop() |
| private int mTouchSlopSquare; |
| // pre-computed square of ViewConfiguration.getScaledDoubleTapSlop() |
| private int mDoubleTapSlopSquare; |
| // pre-computed density adjusted navigation slop |
| private int mNavSlop; |
| // This should be ViewConfiguration.getTapTimeout() |
| // But system time out is 100ms, which is too short for the browser. |
| // In the browser, if it switches out of tap too soon, jump tap won't work. |
| private static final int TAP_TIMEOUT = 200; |
| // This should be ViewConfiguration.getLongPressTimeout() |
| // But system time out is 500ms, which is too short for the browser. |
| // With a short timeout, it's difficult to treat trigger a short press. |
| private static final int LONG_PRESS_TIMEOUT = 1000; |
| // needed to avoid flinging after a pause of no movement |
| private static final int MIN_FLING_TIME = 250; |
| // draw unfiltered after drag is held without movement |
| private static final int MOTIONLESS_TIME = 100; |
| // The 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 static final int SLIDE_TITLE_DURATION = 500; // milliseconds |
| private Scroller mScroller; |
| |
| private boolean mWrapContent; |
| private static final int MOTIONLESS_FALSE = 0; |
| private static final int MOTIONLESS_PENDING = 1; |
| private static final int MOTIONLESS_TRUE = 2; |
| private int mHeldMotionless; |
| |
| /** |
| * Private message ids |
| */ |
| private static final int REMEMBER_PASSWORD = 1; |
| private static final int NEVER_REMEMBER_PASSWORD = 2; |
| private static final int SWITCH_TO_SHORTPRESS = 3; |
| private static final int SWITCH_TO_LONGPRESS = 4; |
| private static final int RELEASE_SINGLE_TAP = 5; |
| private static final int REQUEST_FORM_DATA = 6; |
| private static final int RESUME_WEBCORE_UPDATE = 7; |
| private static final int DRAG_HELD_MOTIONLESS = 8; |
| private static final int AWAKEN_SCROLL_BARS = 9; |
| |
| //! 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 FIND_AGAIN = 18; |
| static final int MOVE_OUT_OF_PLUGIN = 19; |
| static final int CLEAR_TEXT_ENTRY = 20; |
| static final int UPDATE_TEXT_SELECTION_MSG_ID = 21; |
| 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; |
| "RELEASE_SINGLE_TAP", // = 5; |
| "REQUEST_FORM_DATA", // = 6; |
| "RESUME_WEBCORE_UPDATE", // = 7; |
| "DRAG_HELD_MOTIONLESS", // = 8; |
| "AWAKEN_SCROLL_BARS", // = 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; |
| "FIND_AGAIN", // = 18; |
| "MOVE_OUT_OF_PLUGIN", // = 19; |
| "CLEAR_TEXT_ENTRY", // = 20; |
| "UPDATE_TEXT_SELECTION_MSG_ID", // = 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; |
| }; |
| |
| // 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 = true; |
| |
| // initial scale in percent. 0 means using default. |
| private int mInitialScaleInPercent = 0; |
| |
| // while in the zoom overview mode, the page's width is fully fit to the |
| // current window. The page is alive, in another words, you can click to |
| // follow the links. Double tap will toggle between zoom overview mode and |
| // the last zoom scale. |
| boolean mInZoomOverview = false; |
| |
| // ideally mZoomOverviewWidth should be mContentWidth. But sites like espn, |
| // engadget always have wider mContentWidth no matter what viewport size is. |
| int mZoomOverviewWidth = WebViewCore.DEFAULT_VIEWPORT_WIDTH; |
| float mLastScale; |
| |
| // 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 int mInitialScrollX; |
| private int mInitialScrollY; |
| 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 = 0; |
| private static final int SNAP_LOCK = 1; // not a separate state |
| private static final int SNAP_X = 2; // may be combined with SNAP_LOCK |
| private static final int SNAP_Y = 4; // may be combined with SNAP_LOCK |
| private boolean mSnapPositive; |
| |
| // 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) { |
| this(context, attrs, defStyle, null); |
| } |
| |
| /** |
| * Construct a new WebView with layout parameters, a default style and a set |
| * of custom Javscript interfaces to be added to the WebView at initialization |
| * time. This guraratees that these interfaces will be available when the JS |
| * context is initialized. |
| * @param context A Context object used to access application assets. |
| * @param attrs An AttributeSet passed to our parent. |
| * @param defStyle The default style resource ID. |
| * @param javascriptInterfaces is a Map of intareface names, as keys, and |
| * object implementing those interfaces, as values. |
| * @hide pending API council approval. |
| */ |
| protected WebView(Context context, AttributeSet attrs, int defStyle, |
| Map<String, Object> javascriptInterfaces) { |
| super(context, attrs, defStyle); |
| init(); |
| |
| mCallbackProxy = new CallbackProxy(context, this); |
| mWebViewCore = new WebViewCore(context, this, mCallbackProxy, javascriptInterfaces); |
| 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 && !mInZoomOverview; |
| 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()); |
| int slop = configuration.getScaledTouchSlop(); |
| mTouchSlopSquare = slop * slop; |
| mMinLockSnapReverseDistance = slop; |
| slop = configuration.getScaledDoubleTapSlop(); |
| mDoubleTapSlopSquare = slop * slop; |
| final float density = getContext().getResources().getDisplayMetrics().density; |
| // use one line height, 16 based on our current default font, for how |
| // far we allow a touch be away from the edge of a link |
| mNavSlop = (int) (16 * density); |
| // 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. |
| * Note: this can be called from WebCoreThread. |
| */ |
| /* package */ int getViewWidth() { |
| if (!isVerticalScrollBarEnabled() || mOverlayVerticalScrollbar) { |
| return getWidth(); |
| } else { |
| return getWidth() - getVerticalScrollbarWidth(); |
| } |
| } |
| |
| /* |
| * returns the height of the titlebarview (if any). Does not care about |
| * scrolling |
| */ |
| private int getTitleHeight() { |
| return mTitleBar != null ? mTitleBar.getHeight() : 0; |
| } |
| |
| /* |
| * Return the amount of the titlebarview (if any) that is visible |
| */ |
| private int getVisibleTitleHeight() { |
| return Math.max(getTitleHeight() - mScrollY, 0); |
| } |
| |
| /* |
| * Return the height of the view where the content of WebView should render |
| * to. Note that this excludes mTitleBar, if there is one. |
| * Note: this can be called from WebCoreThread. |
| */ |
| /* package */ int getViewHeight() { |
| return getViewHeightWithTitle() - getVisibleTitleHeight(); |
| } |
| |
| private int getViewHeightWithTitle() { |
| int height = getHeight(); |
| if (isHorizontalScrollBarEnabled() && !mOverlayHorizontalScrollbar) { |
| height -= getHorizontalScrollbarHeight(); |
| } |
| return height; |
| } |
| |
| /** |
| * @return The SSL certificate for the main top-level page or null if |
| * there is no certificate (the site is not secure). |
| */ |
| public SslCertificate getCertificate() { |
| 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); |
| if (null == item) { |
| // FIXME: this shouldn't happen |
| // need to determine how item got set to null |
| Log.w(LOGTAG, "saveState: Unexpected null history item."); |
| return null; |
| } |
| byte[] data = item.getFlattenedData(); |
| if (data == null) { |
| // It would be very odd to not have any data for a given history |
| // item. And we will fail to rebuild the history list without |
| // flattened data. |
| return null; |
| } |
| history.add(data); |
| } |
| outState.putSerializable("history", history); |
| if (mCertificate != null) { |
| outState.putBundle("certificate", |
| SslCertificate.saveState(mCertificate)); |
| } |
| 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); |
| if (mInZoomOverview) { |
| b.putFloat("lastScale", mLastScale); |
| } |
| 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; |
| float lastScale = b.getFloat("lastScale", -1.0f); |
| if (lastScale > 0) { |
| mInZoomOverview = true; |
| mLastScale = lastScale; |
| } else { |
| mInZoomOverview = false; |
| } |
| 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. |
| */ |
| 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() { |
| clearTextEntry(); |
| 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, computeVerticalScrollRange(), 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) { |
| mInitialScaleInPercent = 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 = viewToContentX((int) mLastTouchX + mScrollX); |
| int contentY = viewToContentY((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) { |
| if (0 == mNativeClass) return; // client isn't initialized |
| int contentX = viewToContentX((int) mLastTouchX + mScrollX); |
| int contentY = viewToContentY((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) { |
| int titleH = getTitleHeight(); |
| // if the titlebar is still visible, just pin against 0 |
| if (y <= titleH) { |
| return Math.max(y, 0); |
| } |
| // convert to 0-based coordinate (subtract the title height) |
| // pin(), and then add the title height back in |
| return pinLoc(y - titleH, getViewHeight(), |
| computeVerticalScrollRange()) + titleH; |
| } |
| |
| /** |
| * A title bar which is embedded in this WebView, and scrolls along with it |
| * vertically, but not horizontally. |
| */ |
| private View mTitleBar; |
| |
| /** |
| * Since we draw the title bar ourselves, we removed the shadow from the |
| * browser's activity. We do want a shadow at the bottom of the title bar, |
| * or at the top of the screen if the title bar is not visible. This |
| * drawable serves that purpose. |
| */ |
| private Drawable mTitleShadow; |
| |
| /** |
| * Add or remove a title bar to be embedded into the WebView, and scroll |
| * along with it vertically, while remaining in view horizontally. Pass |
| * null to remove the title bar from the WebView, and return to drawing |
| * the WebView normally without translating to account for the title bar. |
| * @hide |
| */ |
| public void setEmbeddedTitleBar(View v) { |
| if (mTitleBar == v) return; |
| if (mTitleBar != null) { |
| removeView(mTitleBar); |
| } |
| if (null != v) { |
| addView(v, new AbsoluteLayout.LayoutParams( |
| ViewGroup.LayoutParams.FILL_PARENT, |
| ViewGroup.LayoutParams.WRAP_CONTENT, 0, 0)); |
| if (mTitleShadow == null) { |
| mTitleShadow = (Drawable) mContext.getResources().getDrawable( |
| com.android.internal.R.drawable.title_bar_shadow); |
| } |
| } |
| mTitleBar = v; |
| } |
| |
| /** |
| * Given a distance in view space, convert it to content space. Note: this |
| * does not reflect translation, just scaling, so this should not be called |
| * with coordinates, but should be called for dimensions like width or |
| * height. |
| */ |
| private int viewToContentDimension(int d) { |
| return Math.round(d * mInvActualScale); |
| } |
| |
| /** |
| * Given an x coordinate in view space, convert it to content space. Also |
| * may be used for absolute heights (such as for the WebTextView's |
| * textSize, which is unaffected by the height of the title bar). |
| */ |
| /*package*/ int viewToContentX(int x) { |
| return viewToContentDimension(x); |
| } |
| |
| /** |
| * Given a y coordinate in view space, convert it to content space. |
| * Takes into account the height of the title bar if there is one |
| * embedded into the WebView. |
| */ |
| /*package*/ int viewToContentY(int y) { |
| return viewToContentDimension(y - getTitleHeight()); |
| } |
| |
| /** |
| * Given a distance in content space, convert it to view space. Note: this |
| * does not reflect translation, just scaling, so this should not be called |
| * with coordinates, but should be called for dimensions like width or |
| * height. |
| */ |
| /*package*/ int contentToViewDimension(int d) { |
| return Math.round(d * mActualScale); |
| } |
| |
| /** |
| * Given an x coordinate in content space, convert it to view |
| * space. |
| */ |
| /*package*/ int contentToViewX(int x) { |
| return contentToViewDimension(x); |
| } |
| |
| /** |
| * Given a y coordinate in content space, convert it to view |
| * space. Takes into account the height of the title bar. |
| */ |
| /*package*/ int contentToViewY(int y) { |
| return contentToViewDimension(y) + getTitleHeight(); |
| } |
| |
| private Rect contentToViewRect(Rect x) { |
| return new Rect(contentToViewX(x.left), contentToViewY(x.top), |
| contentToViewX(x.right), contentToViewY(x.bottom)); |
| } |
| |
| /* To invalidate a rectangle in content coordinates, we need to transform |
| the rect into view coordinates, so we can then call invalidate(...). |
| |
| Normally, we would just call contentToView[XY](...), which eventually |
| calls Math.round(coordinate * mActualScale). However, for invalidates, |
| we need to account for the slop that occurs with antialiasing. To |
| address that, we are a little more liberal in the size of the rect that |
| we invalidate. |
| |
| This liberal calculation calls floor() for the top/left, and ceil() for |
| the bottom/right coordinates. This catches the possible extra pixels of |
| antialiasing that we might have missed with just round(). |
| */ |
| |
| // Called by JNI to invalidate the View, given rectangle coordinates in |
| // content space |
| private void viewInvalidate(int l, int t, int r, int b) { |
| final float scale = mActualScale; |
| final int dy = getTitleHeight(); |
| invalidate((int)Math.floor(l * scale), |
| (int)Math.floor(t * scale) + dy, |
| (int)Math.ceil(r * scale), |
| (int)Math.ceil(b * scale) + dy); |
| } |
| |
| // Called by JNI to invalidate the View after a delay, given rectangle |
| // coordinates in content space |
| private void viewInvalidateDelayed(long delay, int l, int t, int r, int b) { |
| final float scale = mActualScale; |
| final int dy = getTitleHeight(); |
| postInvalidateDelayed(delay, |
| (int)Math.floor(l * scale), |
| (int)Math.floor(t * scale) + dy, |
| (int)Math.ceil(r * scale), |
| (int)Math.ceil(b * scale) + dy); |
| } |
| |
| private void invalidateContentRect(Rect r) { |
| viewInvalidate(r.left, r.top, r.right, r.bottom); |
| } |
| |
| // stop the scroll animation, and don't let a subsequent fling add |
| // to the existing velocity |
| private void abortAnimation() { |
| mScroller.abortAnimation(); |
| mLastVelocity = 0; |
| } |
| |
| /* call from webcoreview.draw(), so we're still executing in the UI thread |
| */ |
| private void recordNewContentSize(int w, int h, boolean updateLayout) { |
| |
| // premature data from webkit, ignore |
| if ((w | h) == 0) { |
| return; |
| } |
| |
| // don't abort a scroll animation if we didn't change anything |
| if (mContentWidth != w || mContentHeight != h) { |
| // record new dimensions |
| mContentWidth = w; |
| mContentHeight = h; |
| // If history Picture is drawn, don't update scroll. They will be |
| // updated when we get out of that mode. |
| if (!mDrawHistory) { |
| // repin our scroll, taking into account the new content size |
| int oldX = mScrollX; |
| int oldY = mScrollY; |
| mScrollX = pinLocX(mScrollX); |
| mScrollY = pinLocY(mScrollY); |
| if (oldX != mScrollX || oldY != mScrollY) { |
| sendOurVisibleRect(); |
| } |
| if (!mScroller.isFinished()) { |
| // We are in the middle of a scroll. Repin the final scroll |
| // position. |
| mScroller.setFinalX(pinLocX(mScroller.getFinalX())); |
| mScroller.setFinalY(pinLocY(mScroller.getFinalY())); |
| } |
| } |
| } |
| contentSizeChanged(updateLayout); |
| } |
| |
| 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 - getTitleHeight()); |
| |
| // 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 -= mFindHeight; |
| } |
| } |
| |
| // Sets r to be our visible rectangle in content coordinates |
| private void calcOurContentVisibleRect(Rect r) { |
| calcOurVisibleRect(r); |
| r.left = viewToContentX(r.left); |
| // viewToContentY will remove the total height of the title bar. Add |
| // the visible height back in to account for the fact that if the title |
| // bar is partially visible, the part of the visible rect which is |
| // displaying our content is displaced by that amount. |
| r.top = viewToContentY(r.top + getVisibleTitleHeight()); |
| r.right = viewToContentX(r.right); |
| r.bottom = viewToContentY(r.bottom); |
| } |
| |
| static class ViewSizeData { |
| int mWidth; |
| int mHeight; |
| int mTextWrapWidth; |
| float mScale; |
| boolean mIgnoreHeight; |
| } |
| |
| /** |
| * Compute unzoomed width and height, and if they differ from the last |
| * values we sent, send them to webkit (to be used has new viewport) |
| * |
| * @return true if new values were sent |
| */ |
| private boolean sendViewSizeZoom() { |
| int viewWidth = getViewWidth(); |
| int newWidth = Math.round(viewWidth * 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) { |
| ViewSizeData data = new ViewSizeData(); |
| data.mWidth = newWidth; |
| data.mHeight = newHeight; |
| // while in zoom overview mode, the text are wrapped to the screen |
| // width matching mLastScale. So that we don't trigger re-flow while |
| // toggling between overview mode and normal mode. |
| data.mTextWrapWidth = mInZoomOverview ? Math.round(viewWidth |
| / mLastScale) : newWidth; |
| data.mScale = mActualScale; |
| data.mIgnoreHeight = mZoomScale != 0 && !mHeightCanMeasure; |
| mWebViewCore.sendMessage(EventHub.VIEW_SIZE_CHANGED, data); |
| mLastWidthSent = newWidth; |
| mLastHeightSent = newHeight; |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| protected int computeHorizontalScrollRange() { |
| if (mDrawHistory) { |
| return mHistoryWidth; |
| } else { |
| // to avoid rounding error caused unnecessary scrollbar, use floor |
| return (int) Math.floor(mContentWidth * mActualScale); |
| } |
| } |
| |
| @Override |
| protected int computeVerticalScrollRange() { |
| if (mDrawHistory) { |
| return mHistoryHeight; |
| } else { |
| // to avoid rounding error caused unnecessary scrollbar, use floor |
| return (int) Math.floor(mContentHeight * mActualScale); |
| } |
| } |
| |
| @Override |
| protected int computeVerticalScrollOffset() { |
| return Math.max(mScrollY - getTitleHeight(), 0); |
| } |
| |
| @Override |
| protected int computeVerticalScrollExtent() { |
| return getViewHeight(); |
| } |
| |
| /** @hide */ |
| @Override |
| protected void onDrawVerticalScrollBar(Canvas canvas, |
| Drawable scrollBar, |
| int l, int t, int r, int b) { |
| scrollBar.setBounds(l, t + getVisibleTitleHeight(), r, b); |
| scrollBar.draw(canvas); |
| } |
| |
| /** |
| * 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 touch icon url for the apple-touch-icon <link> element. |
| * @hide |
| */ |
| public String getTouchIconUrl() { |
| WebHistoryItem h = mCallbackProxy.getBackForwardList().getCurrentItem(); |
| return h != null ? h.getTouchIconUrl() : null; |
| } |
| |
| /** |
| * Get the progress for the current page. |
| * @return The progress for the current page between 0 and 100. |
| */ |
| public int getProgress() { |
| return mCallbackProxy.getProgress(); |
| } |
| |
| /** |
| * @return the height of the HTML content. |
| */ |
| public int getContentHeight() { |
| return mContentHeight; |
| } |
| |
| /** |
| * @return the width of the HTML content. |
| * @hide |
| */ |
| public int getContentWidth() { |
| return mContentWidth; |
| } |
| |
| /** |
| * Pause all layout, parsing, and javascript timers for all webviews. This |
| * is a global requests, not restricted to just this webview. This can be |
| * useful if the application has been paused. |
| */ |
| public void pauseTimers() { |
| 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. |
| */ |
| 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) { |
| if (0 == mNativeClass) return; // client isn't initialized |
| nativeFindNext(forward); |
| } |
| |
| /* |
| * Find all instances of find on the page and highlight them. |
| * @param find String to find. |
| * @return int The number of occurances of the String "find" |
| * that were found. |
| */ |
| public int findAll(String find) { |
| if (0 == mNativeClass) return 0; // client isn't initialized |
| if (mFindIsUp == false) { |
| recordNewContentSize(mContentWidth, mContentHeight + mFindHeight, |
| false); |
| mFindIsUp = true; |
| } |
| int result = nativeFindAll(find.toLowerCase(), find.toUpperCase()); |
| invalidate(); |
| mLastFind = find; |
| return result; |
| } |
| |
| // Used to know whether the find dialog is open. Affects whether |
| // or not we draw the highlights for matches. |
| private boolean mFindIsUp; |
| private int mFindHeight; |
| // Keep track of the last string sent, so we can search again after an |
| // orientation change or the dismissal of the soft keyboard. |
| private String mLastFind; |
| |
| /** |
| * Return the first substring consisting of the address of a physical |
| * location. Currently, only addresses in the United States are detected, |
| * and consist of: |
| * - a house number |
| * - a street name |
| * - a street type (Road, Circle, etc), either spelled out or abbreviated |
| * - a city name |
| * - a state or territory, either spelled out or two-letter abbr. |
| * - an optional 5 digit or 9 digit zip code. |
| * |
| * All names must be correctly capitalized, and the zip code, if present, |
| * must be valid for the state. The street type must be a standard USPS |
| * spelling or abbreviation. The state or territory must also be spelled |
| * or abbreviated using USPS standards. The house number may not exceed |
| * five digits. |
| * @param addr The string to search for addresses. |
| * |
| * @return the address, or if no address is found, return null. |
| */ |
| public static String findAddress(String addr) { |
| 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() { |
| if (mFindIsUp) { |
| recordNewContentSize(mContentWidth, mContentHeight - mFindHeight, |
| false); |
| 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(); |
| } |
| |
| /** |
| * @hide |
| */ |
| public void setFindDialogHeight(int height) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "setFindDialogHeight height=" + height); |
| } |
| mFindHeight = height; |
| } |
| |
| /** |
| * 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 (animate) { |
| // Log.d(LOGTAG, "startScroll: " + dx + " " + dy); |
| mScroller.startScroll(mScrollX, mScrollY, dx, dy, |
| animationDuration > 0 ? animationDuration : computeDuration(dx, dy)); |
| awakenScrollBars(mScroller.getDuration()); |
| invalidate(); |
| } else { |
| abortAnimation(); // just in case |
| scrollTo(x, y); |
| } |
| return true; |
| } |
| |
| // Scale from content to view coordinates, and pin. |
| // Also called by jni webview.cpp |
| private boolean setContentScrollBy(int cx, int cy, boolean animate) { |
| if (mDrawHistory) { |
| // disallow WebView to change the scroll position as History Picture |
| // is used in the view system. |
| // TODO: as we switchOutDrawHistory when trackball or navigation |
| // keys are hit, this should be safe. Right? |
| return false; |
| } |
| cx = contentToViewDimension(cx); |
| cy = contentToViewDimension(cy); |
| if (mHeightCanMeasure) { |
| // move our visible rect according to scroll request |
| if (cy != 0) { |
| Rect tempRect = new Rect(); |
| calcOurVisibleRect(tempRect); |
| tempRect.offset(cx, cy); |
| requestRectangleOnScreen(tempRect); |
| } |
| // FIXME: We scroll horizontally no matter what because currently |
| // ScrollView and ListView will not scroll horizontally. |
| // FIXME: Why do we only scroll horizontally if there is no |
| // vertical scroll? |
| // Log.d(LOGTAG, "setContentScrollBy cy=" + cy); |
| return cy == 0 && cx != 0 && pinScrollBy(cx, 0, animate, 0); |
| } else { |
| return pinScrollBy(cx, cy, animate, 0); |
| } |
| } |
| |
| /** |
| * Called by CallbackProxy when the page finishes loading. |
| * @param url The URL of the page which has finished loading. |
| */ |
| /* package */ void onPageFinished(String url) { |
| if (mPageThatNeedsToSlideTitleBarOffScreen != null) { |
| // If the user is now on a different page, or has scrolled the page |
| // past the point where the title bar is offscreen, ignore the |
| // scroll request. |
| if (mPageThatNeedsToSlideTitleBarOffScreen.equals(url) |
| && mScrollX == 0 && mScrollY == 0) { |
| pinScrollTo(0, mYDistanceToSlideTitleOffScreen, true, |
| SLIDE_TITLE_DURATION); |
| } |
| mPageThatNeedsToSlideTitleBarOffScreen = null; |
| } |
| } |
| |
| /** |
| * The URL of a page that sent a message to scroll the title bar off screen. |
| * |
| * Many mobile sites tell the page to scroll to (0,1) in order to scroll the |
| * title bar off the screen. Sometimes, the scroll position is set before |
| * the page finishes loading. Rather than scrolling while the page is still |
| * loading, keep track of the URL and new scroll position so we can perform |
| * the scroll once the page finishes loading. |
| */ |
| private String mPageThatNeedsToSlideTitleBarOffScreen; |
| |
| /** |
| * The destination Y scroll position to be used when the page finishes |
| * loading. See mPageThatNeedsToSlideTitleBarOffScreen. |
| */ |
| private int mYDistanceToSlideTitleOffScreen; |
| |
| // scale from content to view coordinates, and pin |
| // return true if pin caused the final x/y different than the request cx/cy, |
| // and a future scroll may reach the request cx/cy after our size has |
| // changed |
| // return false if the view scroll to the exact position as it is requested, |
| // where negative numbers are taken to mean 0 |
| private boolean setContentScrollTo(int cx, int cy) { |
| if (mDrawHistory) { |
| // disallow WebView to change the scroll position as History Picture |
| // is used in the view system. |
| // One known case where this is called is that WebCore tries to |
| // restore the scroll position. As history Picture already uses the |
| // saved scroll position, it is ok to skip this. |
| return false; |
| } |
| int vx; |
| int vy; |
| if ((cx | cy) == 0) { |
| // If the page is being scrolled to (0,0), do not add in the title |
| // bar's height, and simply scroll to (0,0). (The only other work |
| // in contentToView_ is to multiply, so this would not change 0.) |
| vx = 0; |
| vy = 0; |
| } else { |
| vx = contentToViewX(cx); |
| vy = contentToViewY(cy); |
| } |
| // Log.d(LOGTAG, "content scrollTo [" + cx + " " + cy + "] view=[" + |
| // vx + " " + vy + "]"); |
| // Some mobile sites attempt to scroll the title bar off the page by |
| // scrolling to (0,1). If we are at the top left corner of the |
| // page, assume this is an attempt to scroll off the title bar, and |
| // animate the title bar off screen slowly enough that the user can see |
| // it. |
| if (cx == 0 && cy == 1 && mScrollX == 0 && mScrollY == 0 |
| && mTitleBar != null) { |
| // FIXME: 100 should be defined somewhere as our max progress. |
| if (getProgress() < 100) { |
| // Wait to scroll the title bar off screen until the page has |
| // finished loading. Keep track of the URL and the destination |
| // Y position |
| mPageThatNeedsToSlideTitleBarOffScreen = getUrl(); |
| mYDistanceToSlideTitleOffScreen = vy; |
| } else { |
| pinScrollTo(vx, vy, true, SLIDE_TITLE_DURATION); |
| } |
| // Since we are animating, we have not yet reached the desired |
| // scroll position. Do not return true to request another attempt |
| return false; |
| } |
| pinScrollTo(vx, vy, false, 0); |
| // If the request was to scroll to a negative coordinate, treat it as if |
| // it was a request to scroll to 0 |
| if ((mScrollX != vx && cx >= 0) || (mScrollY != vy && cy >= 0)) { |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| // scale from content to view coordinates, and pin |
| private void spawnContentScrollTo(int cx, int cy) { |
| if (mDrawHistory) { |
| // disallow WebView to change the scroll position as History Picture |
| // is used in the view system. |
| return; |
| } |
| int vx = contentToViewX(cx); |
| int vy = contentToViewY(cy); |
| pinScrollTo(vx, vy, true, 0); |
| } |
| |
| /** |
| * These are from webkit, and are in content coordinate system (unzoomed) |
| */ |
| private void contentSizeChanged(boolean updateLayout) { |
| // suppress 0,0 since we usually see real dimensions soon after |
| // this avoids drawing the prev content in a funny place. If we find a |
| // way to consolidate these notifications, this check may become |
| // obsolete |
| if ((mContentWidth | mContentHeight) == 0) { |
| return; |
| } |
| |
| if (mHeightCanMeasure) { |
| if (getMeasuredHeight() != contentToViewDimension(mContentHeight) |
| || updateLayout) { |
| requestLayout(); |
| } |
| } else if (mWidthCanMeasure) { |
| if (getMeasuredWidth() != contentToViewDimension(mContentWidth) |
| || updateLayout) { |
| requestLayout(); |
| } |
| } else { |
| // If we don't request a layout, try to send our view size to the |
| // native side to ensure that WebCore has the correct dimensions. |
| sendViewSizeZoom(); |
| } |
| } |
| |
| /** |
| * 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); |
| } |
| |
| /** |
| * Gets the WebViewClient |
| * @return the current WebViewClient instance. |
| * |
| *@hide pending API council approval. |
| */ |
| public WebViewClient getWebViewClient() { |
| return mCallbackProxy.getWebViewClient(); |
| } |
| |
| /** |
| * Register the interface to be used when content can not be handled by |
| * the rendering engine, and should be downloaded instead. This will replace |
| * the current handler. |
| * @param listener An implementation of DownloadListener. |
| */ |
| public void setDownloadListener(DownloadListener listener) { |
| 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. |
| * |
| * @deprecated This was used for Gears, which has been deprecated. |
| */ |
| @Deprecated |
| public static synchronized PluginList getPluginList() { |
| return new PluginList(); |
| } |
| |
| /** |
| * @deprecated This was used for Gears, which has been deprecated. |
| */ |
| @Deprecated |
| public void refreshPlugins(boolean reloadOpenPages) { } |
| |
| //------------------------------------------------------------------------- |
| // Override View methods |
| //------------------------------------------------------------------------- |
| |
| @Override |
| protected void finalize() throws Throwable { |
| try { |
| destroy(); |
| } finally { |
| super.finalize(); |
| } |
| } |
| |
| @Override |
| protected boolean drawChild(Canvas canvas, View child, long drawingTime) { |
| if (child == mTitleBar) { |
| // When drawing the title bar, move it horizontally to always show |
| // at the top of the WebView. |
| mTitleBar.offsetLeftAndRight(mScrollX - mTitleBar.getLeft()); |
| } |
| return super.drawChild(canvas, child, drawingTime); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| // if mNativeClass is 0, the WebView has been destroyed. Do nothing. |
| if (mNativeClass == 0) { |
| return; |
| } |
| int saveCount = canvas.save(); |
| if (mTitleBar != null) { |
| canvas.translate(0, (int) mTitleBar.getHeight()); |
| } |
| // 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(saveCount); |
| |
| // Now draw the shadow. |
| if (mTitleBar != null) { |
| int y = mScrollY + getVisibleTitleHeight(); |
| int height = (int) (5f * getContext().getResources() |
| .getDisplayMetrics().density); |
| mTitleShadow.setBounds(mScrollX, y, mScrollX + getWidth(), |
| y + height); |
| mTitleShadow.draw(canvas); |
| } |
| 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 |
| centerKeyPressOnTextField(); |
| rebuildWebTextView(); |
| } |
| if (inEditingMode()) { |
| return mWebTextView.performLongClick(); |
| } else { |
| return super.performLongClick(); |
| } |
| } |
| |
| boolean inAnimateZoom() { |
| return mZoomScale != 0; |
| } |
| |
| /** |
| * Need to adjust the WebTextView after a change in zoom, since mActualScale |
| * has changed. This is especially important for password fields, which are |
| * drawn by the WebTextView, since it conveys more information than what |
| * webkit draws. Thus we need to reposition it to show in the correct |
| * place. |
| */ |
| private boolean mNeedToAdjustWebTextView; |
| |
| private boolean didUpdateTextViewBounds(boolean allowIntersect) { |
| Rect contentBounds = nativeFocusCandidateNodeBounds(); |
| Rect vBox = contentToViewRect(contentBounds); |
| Rect visibleRect = new Rect(); |
| calcOurVisibleRect(visibleRect); |
| if (allowIntersect ? Rect.intersects(visibleRect, vBox) : |
| visibleRect.contains(vBox)) { |
| mWebTextView.setRect(vBox.left, vBox.top, vBox.width(), |
| vBox.height()); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| 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) |
| && (mTouchMode != TOUCH_DRAG_MODE || |
| mHeldMotionless != MOTIONLESS_TRUE); |
| if (mTouchMode == TOUCH_DRAG_MODE) { |
| if (mHeldMotionless == MOTIONLESS_PENDING) { |
| mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); |
| mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); |
| mHeldMotionless = MOTIONLESS_FALSE; |
| } |
| if (mHeldMotionless == MOTIONLESS_FALSE) { |
| mPrivateHandler.sendMessageDelayed(mPrivateHandler |
| .obtainMessage(DRAG_HELD_MOTIONLESS), MOTIONLESS_TIME); |
| mHeldMotionless = MOTIONLESS_PENDING; |
| } |
| } |
| if (animateZoom) { |
| 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; |
| // call invalidate() again to draw with the final filters |
| invalidate(); |
| if (mNeedToAdjustWebTextView) { |
| mNeedToAdjustWebTextView = false; |
| // As a result of the zoom, the textfield is now on |
| // screen. Place the WebTextView in its new place, |
| // accounting for our new scroll/zoom values. |
| if (didUpdateTextViewBounds(false)) { |
| mWebTextView.setTextSize(TypedValue.COMPLEX_UNIT_PX, |
| contentToViewDimension( |
| nativeFocusCandidateTextSize())); |
| // If it is a password field, start drawing the |
| // WebTextView once again. |
| if (nativeFocusCandidateIsPassword()) { |
| mWebTextView.setInPassword(true); |
| } |
| } else { |
| // The textfield is now off screen. The user probably |
| // was not zooming to see the textfield better. Remove |
| // the WebTextView. If the user types a key, and the |
| // textfield is still in focus, we will reconstruct |
| // the WebTextView and scroll it back on screen. |
| mWebTextView.remove(); |
| } |
| } |
| } |
| // calculate the intermediate scroll position. As we need to use |
| // zoomScale, we can't use pinLocX/Y directly. Copy the logic here. |
| float scale = zoomScale * mInvInitialZoomScale; |
| int tx = Math.round(scale * (mInitialScrollX + mZoomCenterX) |
| - mZoomCenterX); |
| tx = -pinLoc(tx, getViewWidth(), Math.round(mContentWidth |
| * zoomScale)) + mScrollX; |
| int titleHeight = getTitleHeight(); |
| int ty = Math.round(scale |
| * (mInitialScrollY + mZoomCenterY - titleHeight) |
| - (mZoomCenterY - titleHeight)); |
| ty = -(ty <= titleHeight ? Math.max(ty, 0) : pinLoc(ty |
| - titleHeight, getViewHeight(), Math.round(mContentHeight |
| * zoomScale)) + titleHeight) + mScrollY; |
| canvas.translate(tx, ty); |
| canvas.scale(zoomScale, zoomScale); |
| if (inEditingMode() && !mNeedToAdjustWebTextView |
| && mZoomScale != 0) { |
| // The WebTextView is up. Keep track of this so we can adjust |
| // its size and placement when we finish zooming |
| mNeedToAdjustWebTextView = true; |
| // If it is in password mode, turn it off so it does not draw |
| // misplaced. |
| if (nativeFocusCandidateIsPassword()) { |
| mWebTextView.setInPassword(false); |
| } |
| } |
| } else { |
| canvas.scale(mActualScale, mActualScale); |
| } |
| |
| mWebViewCore.drawContentPicture(canvas, color, animateZoom, |
| animateScroll); |
| |
| if (mNativeClass == 0) return; |
| if (mShiftIsPressed && !animateZoom) { |
| if (mTouchSelection || mExtendSelection) { |
| nativeDrawSelectionRegion(canvas); |
| } |
| if (!mTouchSelection) { |
| nativeDrawSelectionPointer(canvas, mInvActualScale, mSelectX, |
| mSelectY - getTitleHeight(), 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); |
| } |
| if (mFocusSizeChanged) { |
| mFocusSizeChanged = false; |
| didUpdateTextViewBounds(true); |
| } |
| } |
| |
| // 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.TextSelectionData data |
| = new WebViewCore.TextSelectionData(start, end); |
| mWebViewCore.sendMessage(EventHub.DELETE_SELECTION, mTextGeneration, 0, |
| data); |
| } |
| |
| /** |
| * Set the selection to (start, end) in the focused textfield. If start and |
| * end are out of order, swap them. |
| * @param start Beginning of selection. |
| * @param end End of selection. |
| */ |
| /* package */ void setSelection(int start, int end) { |
| 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) { |
| if (mWebTextView == null) return; |
| |
| imm.showSoftInput(mWebTextView, 0); |
| if (mInZoomOverview) { |
| // if in zoom overview mode, call doDoubleTap() to bring it back |
| // to normal mode so that user can enter text. |
| doDoubleTap(); |
| } |
| } |
| 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); |
| } |
| |
| /** |
| * Only for calling from JNI. Allows a click on an unfocused textfield to |
| * put the textfield in focus. |
| */ |
| private void setOkayNotToMatch() { |
| if (inEditingMode()) { |
| mWebTextView.mOkayForFocusNotToMatch = true; |
| } |
| } |
| |
| /* |
| * This method checks the current focus and cursor and potentially rebuilds |
| * mWebTextView to have the appropriate properties, such as password, |
| * multiline, and what text it contains. It also removes it if necessary. |
| */ |
| /* package */ void rebuildWebTextView() { |
| // If the WebView does not have focus, do nothing until it gains focus. |
| if (!hasFocus() && (null == mWebTextView || !mWebTextView.hasFocus())) { |
| return; |
| } |
| boolean alreadyThere = inEditingMode(); |
| // inEditingMode can only return true if mWebTextView is non-null, |
| // so we can safely call remove() if (alreadyThere) |
| if (0 == mNativeClass || !nativeFocusCandidateIsTextInput()) { |
| if (alreadyThere) { |
| mWebTextView.remove(); |
| } |
| return; |
| } |
| // At this point, we know we have found an input field, so go ahead |
| // and create the WebTextView if necessary. |
| if (mWebTextView == null) { |
| mWebTextView = new WebTextView(mContext, WebView.this); |
| // Initialize our generation number. |
| mTextGeneration = 0; |
| } |
| mWebTextView.setTextSize(TypedValue.COMPLEX_UNIT_PX, |
| contentToViewDimension(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 { |
| // FIXME: Determine whether this is necessary. |
| Selection.setSelection(spannable, start, end); |
| } |
| } else { |
| Rect vBox = contentToViewRect(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) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "rebuildWebTextView null == text"); |
| } |
| text = ""; |
| } |
| mWebTextView.setTextAndKeepSelection(text); |
| 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; |
| if (event.isSystem() |
| || mCallbackProxy.uiOverrideKeyEvent(event)) { |
| return false; |
| } |
| |
| if (mShiftIsPressed == false && nativeCursorWantsKeyEvents() == false |
| && (keyCode == KeyEvent.KEYCODE_SHIFT_LEFT |
| || keyCode == KeyEvent.KEYCODE_SHIFT_RIGHT)) { |
| setUpSelectXY(); |
| } |
| |
| if (keyCode >= KeyEvent.KEYCODE_DPAD_UP |
| && keyCode <= KeyEvent.KEYCODE_DPAD_RIGHT) { |
| // always handle the navigation keys in the UI thread |
| switchOutDrawHistory(); |
| if (mShiftIsPressed) { |
| int xRate = keyCode == KeyEvent.KEYCODE_DPAD_LEFT |
| ? -1 : keyCode == KeyEvent.KEYCODE_DPAD_RIGHT ? 1 : 0; |
| int yRate = keyCode == KeyEvent.KEYCODE_DPAD_UP ? |
| -1 : keyCode == KeyEvent.KEYCODE_DPAD_DOWN ? 1 : 0; |
| int multiplier = event.getRepeatCount() + 1; |
| moveSelection(xRate * multiplier, yRate * multiplier); |
| return true; |
| } |
| if (navHandledKey(keyCode, 1, false, event.getEventTime(), 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) { |
| if (mShiftIsPressed) { |
| return true; // discard press if copy in progress |
| } |
| mGotCenterDown = true; |
| mPrivateHandler.sendMessageDelayed(mPrivateHandler |
| .obtainMessage(LONG_PRESS_CENTER), LONG_PRESS_TIMEOUT); |
| // Already checked mNativeClass, so we do not need to check it |
| // again. |
| nativeRecordButtons(hasFocus() && hasWindowFocus(), true, true); |
| 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 (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, nativeCursorFramePointer(), |
| nativeCursorNodePointer()); |
| // This will bring up the WebTextView and put it in focus, for |
| // our view system's notion of focus |
| rebuildWebTextView(); |
| // Now we need to pass the event to it |
| if (inEditingMode()) { |
| mWebTextView.setDefaultSelection(); |
| mWebTextView.mOkayForFocusNotToMatch = true; |
| return mWebTextView.dispatchKeyEvent(event); |
| } |
| } else if (nativeHasFocusNode()) { |
| // In this case, the cursor is not on a text input, but the focus |
| // might be. Check it, and if so, hand over to the WebTextView. |
| rebuildWebTextView(); |
| if (inEditingMode()) { |
| return mWebTextView.dispatchKeyEvent(event); |
| } |
| } |
| |
| // TODO: should we pass all the keys to DOM or check the meta tag |
| if (nativeCursorWantsKeyEvents() || true) { |
| // pass the key to DOM |
| mWebViewCore.sendMessage(EventHub.KEY_DOWN, event); |
| // return true as DOM handles the key |
| return true; |
| } |
| |
| // Bubble up the key event as WebView doesn't handle it |
| return false; |
| } |
| |
| @Override |
| public boolean onKeyUp(int keyCode, KeyEvent event) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "keyUp at " + System.currentTimeMillis() |
| + ", " + event + ", unicode=" + event.getUnicodeChar()); |
| } |
| |
| if (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; |
| } |
| |
| 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) { |
| if (mExtendSelection) { |
| commitCopy(); |
| } else { |
| mExtendSelection = true; |
| invalidate(); // draw the i-beam instead of the arrow |
| } |
| return true; // discard press if copy in progress |
| } |
| |
| // perform the single click |
| Rect visibleRect = sendOurVisibleRect(); |
| // Note that sendOurVisibleRect calls viewToContent, so the |
| // coordinates should be in content coordinates. |
| if (!nativeCursorIntersects(visibleRect)) { |
| return false; |
| } |
| WebViewCore.CursorData data = cursorData(); |
| mWebViewCore.sendMessage(EventHub.SET_MOVE_MOUSE, data); |
| playSoundEffect(SoundEffectConstants.CLICK); |
| if (nativeCursorIsTextInput()) { |
| rebuildWebTextView(); |
| centerKeyPressOnTextField(); |
| if (inEditingMode()) { |
| mWebTextView.setDefaultSelection(); |
| mWebTextView.mOkayForFocusNotToMatch = true; |
| } |
| return true; |
| } |
| nativeSetFollowedLink(true); |
| if (!mCallbackProxy.uiOverrideUrlLoading(nativeCursorText())) { |
| mWebViewCore.sendMessage(EventHub.CLICK, data.mFrame, |
| nativeCursorNodePointer()); |
| } |
| return true; |
| } |
| |
| // TODO: should we pass all the keys to DOM or check the meta tag |
| if (nativeCursorWantsKeyEvents() || true) { |
| // pass the key to DOM |
| mWebViewCore.sendMessage(EventHub.KEY_UP, event); |
| // return true as DOM handles the key |
| return true; |
| } |
| |
| // Bubble up the key event as WebView doesn't handle it |
| return false; |
| } |
| |
| private void setUpSelectXY() { |
| mExtendSelection = false; |
| mShiftIsPressed = true; |
| if (nativeHasCursorNode()) { |
| Rect rect = nativeCursorNodeBounds(); |
| mSelectX = contentToViewX(rect.left); |
| mSelectY = contentToViewY(rect.top); |
| } else if (mLastTouchY > getVisibleTitleHeight()) { |
| mSelectX = mScrollX + (int) mLastTouchX; |
| mSelectY = mScrollY + (int) mLastTouchY; |
| } else { |
| mSelectX = mScrollX + getViewWidth() / 2; |
| mSelectY = mScrollY + getViewHeightWithTitle() / 2; |
| } |
| nativeHideCursor(); |
| } |
| |
| /** |
| * @hide |
| */ |
| public void emulateShiftHeld() { |
| if (0 == mNativeClass) return; // client isn't initialized |
| setUpSelectXY(); |
| } |
| |
| 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; |
| invalidate(); // remove selection region and pointer |
| 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. |
| */ |
| /* package */ 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); |
| } |
| |
| /** |
| * @hide |
| */ |
| @Override |
| protected boolean setFrame(int left, int top, int right, int bottom) { |
| boolean changed = super.setFrame(left, top, right, bottom); |
| if (!changed && mHeightCanMeasure) { |
| // When mHeightCanMeasure is true, we will set mLastHeightSent to 0 |
| // in WebViewCore after we get the first layout. We do call |
| // requestLayout() when we get contentSizeChanged(). But the View |
| // system won't call onSizeChanged if the dimension is not changed. |
| // In this case, we need to call sendViewSizeZoom() explicitly to |
| // notify the WebKit about the new dimensions. |
| sendViewSizeZoom(); |
| } |
| return changed; |
| } |
| |
| @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. |
| if (mZoomScale == 0) { // unless we're already zooming |
| mZoomCenterX = getViewWidth() * .5f; |
| mZoomCenterY = getViewHeight() * .5f; |
| } |
| |
| // update mMinZoomScale if the minimum zoom scale is not fixed |
| if (!mMinZoomScaleFixed) { |
| // when change from narrow screen to wide screen, the new viewWidth |
| // can be wider than the old content width. We limit the minimum |
| // scale to 1.0f. The proper minimum scale will be calculated when |
| // the new picture shows up. |
| mMinZoomScale = Math.min(1.0f, (float) getViewWidth() |
| / (mDrawHistory ? mHistoryPicture.getWidth() |
| : mZoomOverviewWidth)); |
| if (mInitialScaleInPercent > 0) { |
| // limit the minZoomScale to the initialScale if it is set |
| float initialScale = mInitialScaleInPercent / 100.0f; |
| if (mMinZoomScale > initialScale) { |
| mMinZoomScale = initialScale; |
| } |
| } |
| } |
| |
| // 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 > getViewHeightWithTitle() - 1) { |
| y = getViewHeightWithTitle() - 1; |
| } |
| |
| // pass the touch events from UI thread to WebCore thread |
| if (mForwardTouchEvents && (action != MotionEvent.ACTION_MOVE |
| || eventTime - mLastSentTouchTime > TOUCH_SENT_INTERVAL)) { |
| WebViewCore.TouchEventData ted = new WebViewCore.TouchEventData(); |
| ted.mAction = action; |
| ted.mX = viewToContentX((int) x + mScrollX); |
| ted.mY = viewToContentY((int) y + mScrollY); |
| mWebViewCore.sendMessage(EventHub.TOUCH_EVENT, ted); |
| mLastSentTouchTime = eventTime; |
| } |
| |
| float fDeltaX = mLastTouchX - x; |
| float fDeltaY = mLastTouchY - y; |
| int deltaX = (int) fDeltaX; |
| int deltaY = (int) fDeltaY; |
| |
| switch (action) { |
| case MotionEvent.ACTION_DOWN: { |
| mPreventDrag = PREVENT_DRAG_NO; |
| if (!mScroller.isFinished()) { |
| // stop the current scroll animation, but if this is |
| // the start of a fling, allow it to add to the current |
| // fling's velocity |
| mScroller.abortAnimation(); |
| mTouchMode = TOUCH_DRAG_START_MODE; |
| 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(viewToContentX(mSelectX), |
| viewToContentY(mSelectY), false); |
| mTouchSelection = mExtendSelection = true; |
| invalidate(); // draw the i-beam instead of the arrow |
| } else if (mPrivateHandler.hasMessages(RELEASE_SINGLE_TAP)) { |
| mPrivateHandler.removeMessages(RELEASE_SINGLE_TAP); |
| if (deltaX * deltaX + deltaY * deltaY < mDoubleTapSlopSquare) { |
| mTouchMode = TOUCH_DOUBLE_TAP_MODE; |
| } else { |
| // commit the short press action for the previous tap |
| doShortPress(); |
| // continue, mTouchMode should be still TOUCH_INIT_MODE |
| } |
| } else { |
| mTouchMode = TOUCH_INIT_MODE; |
| mPreventDrag = mForwardTouchEvents ? PREVENT_DRAG_MAYBE_YES |
| : PREVENT_DRAG_NO; |
| mWebViewCore.sendMessage( |
| EventHub.UPDATE_FRAME_CACHE_IF_LOADING); |
| if (mLogEvent && eventTime - mLastTouchUpTime < 1000) { |
| EventLog.writeEvent(EVENT_LOG_DOUBLE_TAP_DURATION, |
| (eventTime - mLastTouchUpTime), eventTime); |
| } |
| } |
| // Trigger the link |
| if (mTouchMode == TOUCH_INIT_MODE |
| || mTouchMode == TOUCH_DOUBLE_TAP_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) { |
| // no dragging during scroll zoom animation |
| 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(viewToContentX(mSelectX), |
| viewToContentY(mSelectY), true); |
| invalidate(); |
| break; |
| } |
| if ((deltaX * deltaX + deltaY * deltaY) < mTouchSlopSquare) { |
| break; |
| } |
| if (mPreventDrag == PREVENT_DRAG_MAYBE_YES) { |
| // track mLastTouchTime as we may need to do fling at |
| // ACTION_UP |
| mLastTouchTime = eventTime; |
| break; |
| } |
| if (mTouchMode == TOUCH_SHORTPRESS_MODE |
| || mTouchMode == TOUCH_SHORTPRESS_START_MODE) { |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| } else if (mTouchMode == TOUCH_INIT_MODE |
| || mTouchMode == TOUCH_DOUBLE_TAP_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); |
| if (!mDragFromTextInput) { |
| nativeHideCursor(); |
| } |
| WebSettings settings = getSettings(); |
| if (settings.supportZoom() |
| && settings.getBuiltInZoomControls() |
| && !mZoomButtonsController.isVisible() |
| && mMinZoomScale < mMaxZoomScale) { |
| mZoomButtonsController.setVisible(true); |
| int count = settings.getDoubleTapToastCount(); |
| if (mInZoomOverview && count > 0) { |
| settings.setDoubleTapToastCount(--count); |
| Toast.makeText(mContext, |
| com.android.internal.R.string.double_tap_toast, |
| Toast.LENGTH_LONG).show(); |
| } |
| } |
| } |
| |
| // do pan |
| int newScrollX = pinLocX(mScrollX + deltaX); |
| int newDeltaX = newScrollX - mScrollX; |
| if (deltaX != newDeltaX) { |
| deltaX = newDeltaX; |
| fDeltaX = (float) newDeltaX; |
| } |
| int newScrollY = pinLocY(mScrollY + deltaY); |
| int newDeltaY = newScrollY - mScrollY; |
| if (deltaY != newDeltaY) { |
| deltaY = newDeltaY; |
| fDeltaY = (float) newDeltaY; |
| } |
| boolean done = false; |
| boolean keepScrollBarsVisible = false; |
| if (Math.abs(fDeltaX) < 1.0f && Math.abs(fDeltaY) < 1.0f) { |
| keepScrollBarsVisible = 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 |
| : deltaX > mMinLockSnapReverseDistance)) { |
| mSnapScrollMode |= SNAP_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 |
| : deltaY > mMinLockSnapReverseDistance)) { |
| mSnapScrollMode |= SNAP_LOCK; |
| } |
| } |
| } |
| if (mSnapScrollMode != SNAP_NONE) { |
| if ((mSnapScrollMode & SNAP_X) == SNAP_X) { |
| deltaY = 0; |
| } else { |
| deltaX = 0; |
| } |
| } |
| if ((deltaX | deltaY) != 0) { |
| scrollBy(deltaX, deltaY); |
| if (deltaX != 0) { |
| mLastTouchX = x; |
| } |
| if (deltaY != 0) { |
| mLastTouchY = y; |
| } |
| mHeldMotionless = MOTIONLESS_FALSE; |
| } else { |
| // keep the scrollbar on the screen even there is no |
| // scroll |
| keepScrollBarsVisible = true; |
| } |
| mLastTouchTime = eventTime; |
| mUserScroll = true; |
| } |
| |
| if (!getSettings().getBuiltInZoomControls()) { |
| boolean showPlusMinus = mMinZoomScale < mMaxZoomScale; |
| if (mZoomControls != null && showPlusMinus) { |
| if (mZoomControls.getVisibility() == View.VISIBLE) { |
| mPrivateHandler.removeCallbacks(mZoomControlRunnable); |
| } else { |
| mZoomControls.show(showPlusMinus, false); |
| } |
| mPrivateHandler.postDelayed(mZoomControlRunnable, |
| ZOOM_CONTROLS_TIMEOUT); |
| } |
| } |
| |
| if (keepScrollBarsVisible) { |
| if (mHeldMotionless != MOTIONLESS_TRUE) { |
| mHeldMotionless = MOTIONLESS_TRUE; |
| invalidate(); |
| } |
| // keep the scrollbar on the screen even there is no scroll |
| awakenScrollBars(ViewConfiguration.getScrollDefaultDelay(), |
| false); |
| // return false to indicate that we can't pan out of the |
| // view space |
| return !done; |
| } |
| break; |
| } |
| case MotionEvent.ACTION_UP: { |
| mLastTouchUpTime = eventTime; |
| switch (mTouchMode) { |
| case TOUCH_DOUBLE_TAP_MODE: // double tap |
| mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); |
| mTouchMode = TOUCH_DONE_MODE; |
| doDoubleTap(); |
| break; |
| case TOUCH_SELECT_MODE: |
| commitCopy(); |
| mTouchSelection = false; |
| break; |
| case TOUCH_INIT_MODE: // tap |
| case TOUCH_SHORTPRESS_START_MODE: |
| case TOUCH_SHORTPRESS_MODE: |
| mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| if ((deltaX * deltaX + deltaY * deltaY) > mTouchSlopSquare) { |
| Log.w(LOGTAG, "Miss a drag as we are waiting for" + |
| " WebCore's response for touch down."); |
| if (computeHorizontalScrollExtent() < computeHorizontalScrollRange() |
| || computeVerticalScrollExtent() < computeVerticalScrollRange()) { |
| // we will not rewrite drag code here, but we |
| // will try fling if it applies. |
| WebViewCore.pauseUpdate(mWebViewCore); |
| // fall through to TOUCH_DRAG_MODE |
| } else { |
| break; |
| } |
| } else { |
| if (mPreventDrag == PREVENT_DRAG_MAYBE_YES) { |
| // if mPreventDrag is not confirmed, treat it as |
| // no so that it won't block tap or double tap. |
| mPreventDrag = PREVENT_DRAG_NO; |
| } |
| if (mPreventDrag == PREVENT_DRAG_NO) { |
| if (mTouchMode == TOUCH_INIT_MODE) { |
| mPrivateHandler.sendMessageDelayed( |
| mPrivateHandler.obtainMessage( |
| RELEASE_SINGLE_TAP), |
| ViewConfiguration.getDoubleTapTimeout()); |
| } else { |
| mTouchMode = TOUCH_DONE_MODE; |
| doShortPress(); |
| } |
| } |
| break; |
| } |
| case TOUCH_DRAG_MODE: |
| mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); |
| mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); |
| mHeldMotionless = MOTIONLESS_TRUE; |
| // redraw in high-quality, as we're done dragging |
| invalidate(); |
| // 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; |
| } |
| mLastVelocity = 0; |
| 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 == TOUCH_DRAG_MODE) { |
| WebViewCore.resumeUpdate(mWebViewCore); |
| } |
| mPrivateHandler.removeMessages(SWITCH_TO_SHORTPRESS); |
| mPrivateHandler.removeMessages(SWITCH_TO_LONGPRESS); |
| mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); |
| mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); |
| mHeldMotionless = MOTIONLESS_TRUE; |
| 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 mFocusSizeChanged = false; |
| 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) { |
| if (mShiftIsPressed) { |
| return true; // discard press if copy in progress |
| } |
| mTrackballDown = true; |
| if (mNativeClass == 0) { |
| return false; |
| } |
| nativeRecordButtons(hasFocus() && hasWindowFocus(), true, true); |
| if (time - mLastCursorTime <= TRACKBALL_TIMEOUT |
| && !mLastCursorBounds.equals(nativeGetCursorRingBounds())) { |
| nativeSelectBestAt(mLastCursorBounds); |
| } |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "onTrackballEvent down ev=" + ev |
| + " time=" + time |
| + " mLastCursorTime=" + mLastCursorTime); |
| } |
| if (isInTouchMode()) requestFocusFromTouch(); |
| return false; // let common code in onKeyDown at it |
| } |
| if (ev.getAction() == MotionEvent.ACTION_UP) { |
| // LONG_PRESS_CENTER is set in common onKeyDown |
| mPrivateHandler.removeMessages(LONG_PRESS_CENTER); |
| mTrackballDown = false; |
| mTrackballUpTime = time; |
| if (mShiftIsPressed) { |
| if (mExtendSelection) { |
| commitCopy(); |
| } else { |
| mExtendSelection = true; |
| invalidate(); // draw the i-beam instead of the arrow |
| } |
| return true; // discard press if copy in progress |
| } |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "onTrackballEvent up ev=" + ev |
| + " time=" + time |
| ); |
| } |
| return false; // let common code in onKeyUp at it |
| } |
| if (mMapTrackballToArrowKeys && mShiftIsPressed == false) { |
| if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent gmail quit"); |
| return false; |
| } |
| if (mTrackballDown) { |
| if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent down quit"); |
| return true; // discard move if trackball is down |
| } |
| if (time - mTrackballUpTime < TRACKBALL_TIMEOUT) { |
| if (DebugFlags.WEB_VIEW) Log.v(LOGTAG, "onTrackballEvent up timeout quit"); |
| return true; |
| } |
| // TODO: alternatively we can do panning as touch does |
| switchOutDrawHistory(); |
| if (time - mTrackballLastTime > TRACKBALL_TIMEOUT) { |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "onTrackballEvent time=" |
| + time + " last=" + mTrackballLastTime); |
| } |
| mTrackballFirstTime = time; |
| mTrackballXMove = mTrackballYMove = 0; |
| } |
| mTrackballLastTime = time; |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "onTrackballEvent ev=" + ev + " time=" + time); |
| } |
| mTrackballRemainsX += ev.getX(); |
| mTrackballRemainsY += ev.getY(); |
| doTrackball(time); |
| return true; |
| } |
| |
| void moveSelection(float xRate, float yRate) { |
| if (mNativeClass == 0) |
| return; |
| int width = getViewWidth(); |
| int height = getViewHeight(); |
| mSelectX += xRate; |
| mSelectY += yRate; |
| int maxX = width + mScrollX; |
| int maxY = height + mScrollY; |
| mSelectX = Math.min(maxX, Math.max(mScrollX - SELECT_CURSOR_OFFSET |
| , mSelectX)); |
| mSelectY = Math.min(maxY, Math.max(mScrollY - SELECT_CURSOR_OFFSET |
| , mSelectY)); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "moveSelection" |
| + " mSelectX=" + mSelectX |
| + " mSelectY=" + mSelectY |
| + " mScrollX=" + mScrollX |
| + " mScrollY=" + mScrollY |
| + " xRate=" + xRate |
| + " yRate=" + yRate |
| ); |
| } |
| nativeMoveSelection(viewToContentX(mSelectX), |
| viewToContentY(mSelectY), 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; |
| int viewWidth = getViewWidth(); |
| int viewHeight = getViewHeight(); |
| if (mShiftIsPressed) { |
| moveSelection(scaleTrackballX(xRate, viewWidth), |
| scaleTrackballY(yRate, viewHeight)); |
| mTrackballRemainsX = mTrackballRemainsY = 0; |
| return; |
| } |
| float ax = Math.abs(xRate); |
| float ay = Math.abs(yRate); |
| float maxA = Math.max(ax, ay); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "doTrackball elapsed=" + elapsed |
| + " xRate=" + xRate |
| + " yRate=" + yRate |
| + " mTrackballRemainsX=" + mTrackballRemainsX |
| + " mTrackballRemainsY=" + mTrackballRemainsY); |
| } |
| int width = mContentWidth - viewWidth; |
| int height = mContentHeight - viewHeight; |
| if (width < 0) width = 0; |
| if (height < 0) height = 0; |
| ax = Math.abs(mTrackballRemainsX * TRACKBALL_MULTIPLIER); |
| ay = Math.abs(mTrackballRemainsY * TRACKBALL_MULTIPLIER); |
| maxA = Math.max(ax, ay); |
| int count = Math.max(0, (int) maxA); |
| int oldScrollX = mScrollX; |
| int oldScrollY = mScrollY; |
| if (count > 0) { |
| int selectKeyCode = ax < ay ? mTrackballRemainsY < 0 ? |
| KeyEvent.KEYCODE_DPAD_UP : KeyEvent.KEYCODE_DPAD_DOWN : |
| mTrackballRemainsX < 0 ? KeyEvent.KEYCODE_DPAD_LEFT : |
| KeyEvent.KEYCODE_DPAD_RIGHT; |
| count = Math.min(count, TRACKBALL_MOVE_COUNT); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "doTrackball keyCode=" + selectKeyCode |
| + " count=" + count |
| + " mTrackballRemainsX=" + mTrackballRemainsX |
| + " mTrackballRemainsY=" + mTrackballRemainsY); |
| } |
| if (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; |
| } |
| } |
| |
| private int computeMaxScrollY() { |
| int maxContentH = computeVerticalScrollRange() + getTitleHeight(); |
| return Math.max(maxContentH - getViewHeightWithTitle(), getTitleHeight()); |
| } |
| |
| public void flingScroll(int vx, int vy) { |
| int maxX = Math.max(computeHorizontalScrollRange() - getViewWidth(), 0); |
| int maxY = computeMaxScrollY(); |
| |
| 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 = computeMaxScrollY(); |
| |
| mVelocityTracker.computeCurrentVelocity(1000, mMaximumFling); |
| int vx = (int) mVelocityTracker.getXVelocity(); |
| int vy = (int) mVelocityTracker.getYVelocity(); |
| |
| if (mSnapScrollMode != SNAP_NONE) { |
| if ((mSnapScrollMode & SNAP_X) == SNAP_X) { |
| 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; |
| } |
| if ((maxX == 0 && vy == 0) || (maxY == 0 && vx == 0)) { |
| WebViewCore.resumeUpdate(mWebViewCore); |
| return; |
| } |
| float currentVelocity = mScroller.getCurrVelocity(); |
| if (mLastVelocity > 0 && currentVelocity > 0) { |
| float deltaR = (float) (Math.abs(Math.atan2(mLastVelY, mLastVelX) |
| - Math.atan2(vy, vx))); |
| final float circle = (float) (Math.PI) * 2.0f; |
| if (deltaR > circle * 0.9f || deltaR < circle * 0.1f) { |
| vx += currentVelocity * mLastVelX / mLastVelocity; |
| vy += currentVelocity * mLastVelY / mLastVelocity; |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "doFling vx= " + vx + " vy=" + vy); |
| } |
| } else if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "doFling missed " + deltaR / circle); |
| } |
| } else if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "doFling start last=" + mLastVelocity |
| + " current=" + currentVelocity |
| + " vx=" + vx + " vy=" + vy |
| + " maxX=" + maxX + " maxY=" + maxY |
| + " mScrollX=" + mScrollX + " mScrollY=" + mScrollY); |
| } |
| mLastVelX = vx; |
| mLastVelY = vy; |
| mLastVelocity = (float) Math.hypot(vx, vy); |
| |
| 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); |
| awakenScrollBars(time); |
| invalidate(); |
| } |
| |
| private boolean zoomWithPreview(float scale) { |
| float oldScale = mActualScale; |
| mInitialScrollX = mScrollX; |
| mInitialScrollY = mScrollY; |
| |
| // 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; |
| if (!mInZoomOverview) { |
| mLastScale = scale; |
| } |
| 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(); |
| } |
| }); |
| 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(); |
| // Center zooming to the center of the screen. |
| if (mInZoomOverview) { |
| // if in overview mode, bring it back to normal mode |
| mLastTouchX = getViewWidth() * .5f; |
| mLastTouchY = getViewHeight() * .5f; |
| doDoubleTap(); |
| return true; |
| } else { |
| mZoomCenterX = getViewWidth() * .5f; |
| mZoomCenterY = getViewHeight() * .5f; |
| 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(); |
| float scale = mActualScale * 0.8f; |
| if (scale < (mMinZoomScale + 0.1f) |
| && mWebViewCore.getSettings().getUseWideViewPort()) { |
| // when zoom out to min scale, switch to overview mode |
| doDoubleTap(); |
| return true; |
| } else { |
| // Center zooming to the center of the screen. |
| mZoomCenterX = getViewWidth() * .5f; |
| mZoomCenterY = getViewHeight() * .5f; |
| return zoomWithPreview(scale); |
| } |
| } |
| |
| private void updateSelection() { |
| if (mNativeClass == 0) { |
| return; |
| } |
| // mLastTouchX and mLastTouchY are the point in the current viewport |
| int contentX = viewToContentX((int) mLastTouchX + mScrollX); |
| int contentY = viewToContentY((int) mLastTouchY + mScrollY); |
| Rect rect = new Rect(contentX - mNavSlop, contentY - mNavSlop, |
| contentX + mNavSlop, contentY + mNavSlop); |
| nativeSelectBestAt(rect); |
| } |
| |
| /** |
| * Scroll the focused text field/area to match the WebTextView |
| * @param xPercent New x position of the WebTextView from 0 to 1. |
| * @param y New y position of the WebTextView in view coordinates |
| */ |
| /*package*/ void scrollFocusedTextInput(float xPercent, int y) { |
| if (!inEditingMode() || mWebViewCore == null) { |
| return; |
| } |
| mWebViewCore.sendMessage(EventHub.SCROLL_TEXT_INPUT, |
| // Since this position is relative to the top of the text input |
| // field, we do not need to take the title bar's height into |
| // consideration. |
| viewToContentDimension(y), |
| new Float(xPercent)); |
| } |
| |
| /** |
| * 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()) { |
| 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; |
| } |
| mDragFromTextInput = true; |
| event.offsetLocation((float) (mWebTextView.getLeft() - mScrollX), |
| (float) (mWebTextView.getTop() - mScrollY)); |
| boolean result = onTouchEvent(event); |
| mDragFromTextInput = false; |
| return result; |
| } |
| |
| /** |
| * Do a touch up from a WebTextView. This will be handled by webkit to |
| * change the selection. |
| * @param event MotionEvent in the WebTextView's coordinates. |
| */ |
| /*package*/ void touchUpOnTextField(MotionEvent event) { |
| if (!inEditingMode()) { |
| return; |
| } |
| int x = viewToContentX((int) event.getX() + mWebTextView.getLeft()); |
| int y = viewToContentY((int) event.getY() + mWebTextView.getTop()); |
| if (nativeFocusNodePointer() != nativeCursorNodePointer()) { |
| nativeMotionUp(x, y, mNavSlop); |
| } |
| nativeTextInputMotionUp(x, y); |
| } |
| |
| /** |
| * Called when pressing the center key or trackball on a textfield. |
| */ |
| /*package*/ void centerKeyPressOnTextField() { |
| mWebViewCore.sendMessage(EventHub.CLICK, nativeCursorFramePointer(), |
| nativeCursorNodePointer()); |
| // Need to show the soft keyboard if it's not readonly. |
| if (!nativeCursorIsReadOnly()) { |
| displaySoftKeyboard(true); |
| } |
| } |
| |
| private void doShortPress() { |
| if (mNativeClass == 0) { |
| return; |
| } |
| switchOutDrawHistory(); |
| // mLastTouchX and mLastTouchY are the point in the current viewport |
| int contentX = viewToContentX((int) mLastTouchX + mScrollX); |
| int contentY = viewToContentY((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); |
| } |
| } |
| |
| private void doDoubleTap() { |
| if (mWebViewCore.getSettings().getUseWideViewPort() == false) { |
| return; |
| } |
| mZoomCenterX = mLastTouchX; |
| mZoomCenterY = mLastTouchY; |
| mInZoomOverview = !mInZoomOverview; |
| // remove the zoom control after double tap |
| WebSettings settings = getSettings(); |
| if (settings.getBuiltInZoomControls()) { |
| if (mZoomButtonsController.isVisible()) { |
| mZoomButtonsController.setVisible(false); |
| } |
| } else { |
| if (mZoomControlRunnable != null) { |
| mPrivateHandler.removeCallbacks(mZoomControlRunnable); |
| } |
| if (mZoomControls != null) { |
| mZoomControls.hide(); |
| } |
| } |
| settings.setDoubleTapToastCount(0); |
| if (mInZoomOverview) { |
| // Force the titlebar fully reveal in overview mode |
| if (mScrollY < getTitleHeight()) mScrollY = 0; |
| zoomWithPreview((float) getViewWidth() / mZoomOverviewWidth); |
| } else { |
| // mLastTouchX and mLastTouchY are the point in the current viewport |
| int contentX = viewToContentX((int) mLastTouchX + mScrollX); |
| int contentY = viewToContentY((int) mLastTouchY + mScrollY); |
| int left = nativeGetBlockLeftEdge(contentX, contentY, mActualScale); |
| if (left != NO_LEFTEDGE) { |
| // add a 5pt padding to the left edge. Re-calculate the zoom |
| // center so that the new scroll x will be on the left edge. |
| mZoomCenterX = left < 5 ? 0 : (left - 5) * mLastScale |
| * mActualScale / (mLastScale - mActualScale); |
| } |
| zoomWithPreview(mLastScale); |
| } |
| } |
| |
| // Called by JNI to handle a touch on a node representing an email address, |
| // address, or phone number |
| private void overrideLoading(String url) { |
| mCallbackProxy.uiOverrideUrlLoading(url); |
| } |
| |
| @Override |
| public boolean requestFocus(int direction, Rect previouslyFocusedRect) { |
| 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 = contentToViewDimension(mContentHeight); |
| int contentWidth = contentToViewDimension(mContentWidth); |
| |
| // Log.d(LOGTAG, "------- measure " + heightMode); |
| |
| if (heightMode != MeasureSpec.EXACTLY) { |
| mHeightCanMeasure = true; |
| measuredHeight = contentHeight; |
| if (heightMode == MeasureSpec.AT_MOST) { |
| // If we are larger than the AT_MOST height, then our height can |
| // no longer be measured and we should scroll internally. |
| if (measuredHeight > heightSize) { |
| measuredHeight = heightSize; |
| mHeightCanMeasure = false; |
| } |
| } |
| } 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 = getViewHeightWithTitle(); |
| 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) { |
| 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) { |
| // exclude INVAL_RECT_MSG_ID since it is frequently output |
| if (DebugFlags.WEB_VIEW && msg.what != INVAL_RECT_MSG_ID) { |
| Log.v(LOGTAG, msg.what < REMEMBER_PASSWORD || msg.what |
| > REQUEST_KEYBOARD ? Integer.toString(msg.what) |
| : HandlerDebugString[msg.what - REMEMBER_PASSWORD]); |
| } |
| if (mWebViewCore == null) { |
| // after WebView's destroy() is called, skip handling messages. |
| return; |
| } |
| switch (msg.what) { |
| case REMEMBER_PASSWORD: { |
| mDatabase.setUsernamePassword( |
| msg.getData().getString("host"), |
| msg.getData().getString("username"), |
| msg.getData().getString("password")); |
| ((Message) msg.obj).sendToTarget(); |
| break; |
| } |
| case NEVER_REMEMBER_PASSWORD: { |
| mDatabase.setUsernamePassword( |
| msg.getData().getString("host"), null, null); |
| ((Message) msg.obj).sendToTarget(); |
| break; |
| } |
| case SWITCH_TO_SHORTPRESS: { |
| // if mPreventDrag is not confirmed, treat it as no so that |
| // it won't block panning the page. |
| if (mPreventDrag == PREVENT_DRAG_MAYBE_YES) { |
| mPreventDrag = PREVENT_DRAG_NO; |
| } |
| if (mTouchMode == TOUCH_INIT_MODE) { |
| mTouchMode = TOUCH_SHORTPRESS_START_MODE; |
| updateSelection(); |
| } else if (mTouchMode == TOUCH_DOUBLE_TAP_MODE) { |
| mTouchMode = TOUCH_DONE_MODE; |
| } |
| break; |
| } |
| case SWITCH_TO_LONGPRESS: { |
| if (mPreventDrag == PREVENT_DRAG_NO) { |
| mTouchMode = TOUCH_DONE_MODE; |
| performLongClick(); |
| rebuildWebTextView(); |
| } |
| break; |
| } |
| case RELEASE_SINGLE_TAP: { |
| if (mPreventDrag == PREVENT_DRAG_NO) { |
| mTouchMode = TOUCH_DONE_MODE; |
| doShortPress(); |
| } |
| 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: { |
| WebSettings settings = mWebViewCore.getSettings(); |
| // called for new content |
| final int viewWidth = getViewWidth(); |
| final WebViewCore.DrawData draw = |
| (WebViewCore.DrawData) msg.obj; |
| final Point viewSize = draw.mViewPoint; |
| boolean useWideViewport = settings.getUseWideViewPort(); |
| WebViewCore.RestoreState restoreState = draw.mRestoreState; |
| if (restoreState != null) { |
| mInZoomOverview = false; |
| mLastScale = mInitialScaleInPercent > 0 |
| ? mInitialScaleInPercent / 100.0f |
| : restoreState.mTextWrapScale; |
| if (restoreState.mMinScale == 0) { |
| if (restoreState.mMobileSite) { |
| if (draw.mMinPrefWidth > |
| Math.max(0, draw.mViewPoint.x)) { |
| mMinZoomScale = (float) viewWidth |
| / draw.mMinPrefWidth; |
| mMinZoomScaleFixed = false; |
| } else { |
| mMinZoomScale = restoreState.mDefaultScale; |
| mMinZoomScaleFixed = true; |
| } |
| } else { |
| mMinZoomScale = DEFAULT_MIN_ZOOM_SCALE; |
| mMinZoomScaleFixed = false; |
| } |
| } else { |
| mMinZoomScale = restoreState.mMinScale; |
| mMinZoomScaleFixed = true; |
| } |
| if (restoreState.mMaxScale == 0) { |
| mMaxZoomScale = DEFAULT_MAX_ZOOM_SCALE; |
| } else { |
| mMaxZoomScale = restoreState.mMaxScale; |
| } |
| setNewZoomScale(mLastScale, false); |
| setContentScrollTo(restoreState.mScrollX, |
| restoreState.mScrollY); |
| if (useWideViewport |
| && settings.getLoadWithOverviewMode()) { |
| if (restoreState.mViewScale == 0 |
| || (restoreState.mMobileSite |
| && mMinZoomScale < restoreState.mDefaultScale)) { |
| mInZoomOverview = true; |
| } |
| } |
| // As we are on a new page, remove the WebTextView. This |
| // is necessary for page loads driven by webkit, and in |
| // particular when the user was on a password field, so |
| // the WebTextView was visible. |
| clearTextEntry(); |
| } |
| // We update the layout (i.e. request a layout from the |
| // view system) if the last view size that we sent to |
| // WebCore matches the view size of the picture we just |
| // received in the fixed dimension. |
| final boolean updateLayout = viewSize.x == mLastWidthSent |
| && viewSize.y == mLastHeightSent; |
| recordNewContentSize(draw.mWidthHeight.x, |
| draw.mWidthHeight.y |
| + (mFindIsUp ? mFindHeight : 0), 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+"}"); |
| } |
| invalidateContentRect(draw.mInvalRegion.getBounds()); |
| if (mPictureListener != null) { |
| mPictureListener.onNewPicture(WebView.this, capturePicture()); |
| } |
| if (useWideViewport) { |
| mZoomOverviewWidth = Math.max(draw.mMinPrefWidth, |
| draw.mViewPoint.x); |
| } |
| if (!mMinZoomScaleFixed) { |
| mMinZoomScale = (float) viewWidth / mZoomOverviewWidth; |
| } |
| if (!mDrawHistory && mInZoomOverview) { |
| // fit the content width to the current view. Ignore |
| // the rounding error case. |
| if (Math.abs((viewWidth * mInvActualScale) |
| - mZoomOverviewWidth) > 1) { |
| setNewZoomScale((float) viewWidth |
| / mZoomOverviewWidth, false); |
| } |
| } |
| if (draw.mFocusSizeChanged && inEditingMode()) { |
| mFocusSizeChanged = true; |
| } |
| 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 UPDATE_TEXT_SELECTION_MSG_ID: |
| if (inEditingMode() |
| && mWebTextView.isSameTextField(msg.arg1) |
| && msg.arg2 == mTextGeneration) { |
| WebViewCore.TextSelectionData tData |
| = (WebViewCore.TextSelectionData) msg.obj; |
| mWebTextView.setSelectionFromWebKit(tData.mStart, |
| tData.mEnd); |
| } |
| break; |
| case MOVE_OUT_OF_PLUGIN: |
| 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) { |
| // dont override if mPreventDrag has been set to no due |
| // to time out |
| if (mPreventDrag == PREVENT_DRAG_MAYBE_YES) { |
| mPreventDrag = msg.arg2 == 1 ? PREVENT_DRAG_YES |
| : PREVENT_DRAG_NO; |
| if (mPreventDrag == PREVENT_DRAG_YES) { |
| mTouchMode = TOUCH_DONE_MODE; |
| } |
| } |
| } |
| break; |
| |
| case REQUEST_KEYBOARD: |
| if (msg.arg1 == 0) { |
| hideSoftKeyboard(); |
| } else { |
| displaySoftKeyboard(false); |
| if (DebugFlags.WEB_VIEW) { |
| Log.v(LOGTAG, "REQUEST_KEYBOARD" |
| + " focusCandidateIsPlugin=" |
| + nativeFocusCandidateIsPlugin()); |
| } |
| } |
| break; |
| |
| case FIND_AGAIN: |
| // Ignore if find has been dismissed. |
| if (mFindIsUp) { |
| findAll(mLastFind); |
| } |
| break; |
| |
| case DRAG_HELD_MOTIONLESS: |
| mHeldMotionless = MOTIONLESS_TRUE; |
| invalidate(); |
| // fall through to keep scrollbars awake |
| |
| case AWAKEN_SCROLL_BARS: |
| if (mTouchMode == TOUCH_DRAG_MODE |
| && mHeldMotionless == MOTIONLESS_TRUE) { |
| awakenScrollBars(ViewConfiguration |
| .getScrollDefaultDelay(), false); |
| mPrivateHandler.sendMessageDelayed(mPrivateHandler |
| .obtainMessage(AWAKEN_SCROLL_BARS), |
| ViewConfiguration.getScrollDefaultDelay()); |
| } |
| break; |
| 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 { |
| /** |
| * Possible values for mEnabled. Keep in sync with OptionStatus in |
| * WebViewCore.cpp |
| */ |
| final static int OPTGROUP = -1; |
| final static int OPTION_DISABLED = 0; |
| final static int OPTION_ENABLED = 1; |
| |
| String mString; |
| int mEnabled; |
| int mId; |
| |
| 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 View getView(int position, View convertView, |
| ViewGroup parent) { |
| // Always pass in null so that we will get a new CheckedTextView |
| // Otherwise, an item which was previously used as an <optgroup> |
| // element (i.e. has no check), could get used as an <option> |
| // element, which needs a checkbox/radio, but it would not have |
| // one. |
| convertView = super.getView(position, null, parent); |
| Container c = item(position); |
| if (c != null && Container.OPTION_ENABLED != c.mEnabled) { |
| // ListView does not draw dividers between disabled and |
| // enabled elements. Use a LinearLayout to provide dividers |
| LinearLayout layout = new LinearLayout(mContext); |
| layout.setOrientation(LinearLayout.VERTICAL); |
| if (position > 0) { |
| View dividerTop = new View(mContext); |
| dividerTop.setBackgroundResource( |
| android.R.drawable.divider_horizontal_bright); |
| layout.addView(dividerTop); |
| } |
| |
| if (Container.OPTGROUP == c.mEnabled) { |
| // Currently select_dialog_multichoice and |
| // select_dialog_singlechoice are CheckedTextViews. If |
| // that changes, the class cast will no longer be valid. |
| Assert.assertTrue( |
| convertView instanceof CheckedTextView); |
| ((CheckedTextView) convertView).setCheckMarkDrawable( |
| null); |
| } else { |
| // c.mEnabled == Container.OPTION_DISABLED |
| // Draw the disabled element in a disabled state. |
| convertView.setEnabled(false); |
| } |
| |
| layout.addView(convertView); |
| if (position < getCount() - 1) { |
| View dividerBottom = new View(mContext); |
| dividerBottom.setBackgroundResource( |
| android.R.drawable.divider_horizontal_bright); |
| layout.addView(dividerBottom); |
| } |
| return layout; |
| } |
| return convertView; |
| } |
| |
| @Override |
| public boolean hasStableIds() { |
| // AdapterView's onChanged method uses this to determine whether |
| // to restore the old state. Return false so that the old (out |
| // of date) state does not replace the new, valid state. |
| return false; |
| } |
| |
| private Container item(int position) { |
| if (position < 0 || position >= getCount()) { |
| return null; |
| } |
| return (Container) getItem(position); |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| Container item = item(position); |
| if (item == null) { |
| return -1; |
| } |
| return item.mId; |
| } |
| |
| @Override |
| public boolean areAllItemsEnabled() { |
| return false; |
| } |
| |
| @Override |
| public boolean isEnabled(int position) { |
| Container item = item(position); |
| if (item == null) { |
| return false; |
| } |
| return Container.OPTION_ENABLED == item.mEnabled; |
| } |
| } |
| |
| private InvokeListBox(String[] array, int[] enabled, int[] selected) { |
| mMultiple = true; |
| mSelectedArray = selected; |
| |
| int length = array.length; |
| mContainers = new Container[length]; |
| for (int i = 0; i < length; i++) { |
| mContainers[i] = new Container(); |
| mContainers[i].mString = array[i]; |
| mContainers[i].mEnabled = enabled[i]; |
| mContainers[i].mId = i; |
| } |
| } |
| |
| private InvokeListBox(String[] array, int[] enabled, int selection) { |
| mSelection = selection; |
| mMultiple = false; |
| |
| int length = array.length; |
| mContainers = new Container[length]; |
| for (int i = 0; i < length; i++) { |
| mContainers[i] = new Container(); |
| mContainers[i].mString = array[i]; |
| mContainers[i].mEnabled = enabled[i]; |
| mContainers[i].mId = i; |
| } |
| } |
| |
| /* |
| * Whenever the data set changes due to filtering, this class ensures |
| * that the checked item remains checked. |
| */ |
| private class SingleDataSetObserver extends DataSetObserver { |
| private long mCheckedId; |
| private ListView mListView; |
| private Adapter mAdapter; |
| |
| /* |
| * Create a new observer. |
| * @param id The ID of the item to keep checked. |
| * @param l ListView for getting and clearing the checked states |
| * @param a Adapter for getting the IDs |
| */ |
| public SingleDataSetObserver(long id, ListView l, Adapter a) { |
| mCheckedId = id; |
| mListView = l; |
| mAdapter = a; |
| } |
| |
| 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 State for each element in the list. See static |
| * integers in Container class. |
| * @param selectedArray Which positions are initally selected. |
| */ |
| void requestListBox(String[] array, int[] enabledArray, int[] |
| selectedArray) { |
| mPrivateHandler.post( |
| new InvokeListBox(array, enabledArray, selectedArray)); |
| } |
| |
| /* |
| * Request a dropdown menu for a listbox with single selection or a single |
| * <select> element. |
| * |
| * @param array Labels for the listbox. |
| * @param enabledArray State for each element in the list. See static |
| * integers in Container class. |
| * @param selection Which position is initally selected. |
| */ |
| void requestListBox(String[] array, int[] enabledArray, int selection) { |
| mPrivateHandler.post( |
| new InvokeListBox(array, enabledArray, selection)); |
| } |
| |
| // called by JNI |
| private void 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) { |
| WebViewCore.TouchUpData touchUpData = new WebViewCore.TouchUpData(); |
| touchUpData.mMoveGeneration = touchGeneration; |
| 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 viewToContentX(width); |
| } |
| |
| private int getScaledMaxYScroll() { |
| int height; |
| if (mHeightCanMeasure == false) { |
| height = getViewHeight() / 4; |
| } else { |
| Rect visRect = new Rect(); |
| calcOurVisibleRect(visRect); |
| height = visRect.height() / 2; |
| } |
| // FIXME the divisor should be retrieved from somewhere |
| // the closest thing today is hard-coded into ScrollView.java |
| // (from ScrollView.java, line 363) int maxJump = height/2; |
| return Math.round(height * mInvActualScale); |
| } |
| |
| /** |
| * 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 && nativeFocusIsPlugin()) { |
| 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 = contentToViewRect(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); |
| } |
| |
| /** |
| * Draw the HTML page into the specified canvas. This call ignores any |
| * view-specific zoom, scroll offset, or other changes. It does not draw |
| * any view-specific chrome, such as progress or URL bars. |
| * |
| * @hide only needs to be accessible to Browser and testing |
| */ |
| public void drawPage(Canvas canvas) { |
| mWebViewCore.drawContentPicture(canvas, 0, false, false); |
| } |
| |
| /** |
| * 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 nativeCursorIsReadOnly(); |
| 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 nativeDrawSelectionPointer(Canvas content, |
| float scale, 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 int nativeFocusCandidateFramePointer(); |
| private native boolean nativeFocusCandidateIsPassword(); |
| private native boolean nativeFocusCandidateIsPlugin(); |
| 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(); |
| private native boolean nativeFocusIsPlugin(); |
| /* 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(); |
| /* package */ native void nativeMoveCursorToNextTextInput(); |
| // return true if the page has been scrolled |
| private native boolean nativeMotionUp(int x, int y, int slop); |
| // returns false if it handled the key |
| private native boolean nativeMoveCursor(int keyCode, int count, |
| boolean noScroll); |
| private native int nativeMoveGeneration(); |
| private native void nativeMoveSelection(int x, int y, |
| boolean extendSelection); |
| // 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); |
| // Returns a value corresponding to CachedFrame::ImeAction |
| /* package */ native int nativeTextFieldAction(); |
| /** |
| * Perform a click on a currently focused text input. Since it is already |
| * focused, there is no need to go through the nativeMotionUp code, which |
| * may change the Cursor. |
| */ |
| private native void nativeTextInputMotionUp(int x, int y); |
| 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); |
| // return NO_LEFTEDGE means failure. |
| private static final int NO_LEFTEDGE = -1; |
| private native int nativeGetBlockLeftEdge(int x, int y, float scale); |
| } |