The Tor Browser: mobile/android/base/gfx/PluginLayer.java@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 package org.mozilla.gecko.gfx;

     7 import org.mozilla.gecko.GeckoAppShell;

     8 import org.mozilla.gecko.util.FloatUtils;

     9 import org.mozilla.gecko.util.ThreadUtils;

    11 import android.graphics.PointF;

    12 import android.graphics.Rect;

    13 import android.graphics.RectF;

    14 import android.view.SurfaceView;

    15 import android.view.View;

    16 import android.widget.AbsoluteLayout;

    18 public class PluginLayer extends TileLayer {

    19     private static final String LOGTAG = "PluginLayer";

    21     private View mView;

    22     private SurfaceView mSurfaceView;

    23     private PluginLayoutParams mLayoutParams;

    24     private AbsoluteLayout mContainer;

    26     private boolean mDestroyed;

    27     private boolean mViewVisible;

    29     private RectF mLastViewport;

    30     private float mLastZoomFactor;

    32     private static final float TEXTURE_MAP[] = {

    33                 0.0f, 1.0f, // top left

    34                 0.0f, 0.0f, // bottom left

    35                 1.0f, 1.0f, // top right

    36                 1.0f, 0.0f, // bottom right

    37     };

    39     public PluginLayer(View view, RectF rect, int maxDimension) {

    40         super(new BufferedCairoImage(null, 0, 0, 0), TileLayer.PaintMode.NORMAL);

    42         mView = view;

    43         mContainer = GeckoAppShell.getGeckoInterface().getPluginContainer();

    45         mView.setWillNotDraw(false);

    46         if (mView instanceof SurfaceView) {

    47             mSurfaceView = (SurfaceView)view;

    48             mSurfaceView.setZOrderOnTop(false);

    49             mSurfaceView.setZOrderMediaOverlay(true);

    50         }

    52         mLayoutParams = new PluginLayoutParams(rect, maxDimension);

    53     }

    55     public void setVisible(boolean visible) {

    56         if (visible) {

    57             showView();

    58         } else {

    59             hideView();

    60         }

    61     }

    63     private void hideView() {

    64         if (mViewVisible) {

    65             ThreadUtils.postToUiThread(new Runnable() {

    66                 @Override

    67                 public void run() {

    68                     mView.setVisibility(View.GONE);

    69                     mViewVisible = false;

    70                 }

    71             });

    72         }

    73     }

    75     public void showView() {

    76         ThreadUtils.postToUiThread(new Runnable() {

    77             @Override

    78             public void run() {

    79                 if (mContainer.indexOfChild(mView) < 0) {

    80                     mContainer.addView(mView, mLayoutParams);

    81                 } else {

    82                     mContainer.updateViewLayout(mView, mLayoutParams);

    83                     mView.setVisibility(View.VISIBLE);

    84                 }

    85                 mViewVisible = true;

    86             }

    87         });

    88     }

    90     @Override

    91     public void destroy() {

    92         mDestroyed = true;

    94         mContainer.removeView(mView);

    95     }

    97     public void reset(RectF rect) {

    98         mLayoutParams.reset(rect);

    99     }

   101     @Override

   102     protected void performUpdates(RenderContext context) {

   103         if (mDestroyed)

   104             return;

   106         if (!RectUtils.fuzzyEquals(context.viewport, mLastViewport) ||

   107             !FloatUtils.fuzzyEquals(context.zoomFactor, mLastZoomFactor)) {

   109             mLastZoomFactor = context.zoomFactor;

   110             mLastViewport = context.viewport;

   111             mLayoutParams.reposition(context.viewport, context.offset, context.zoomFactor);

   113             showView();

   114         }

   115     }

   117     @Override

   118     public void draw(RenderContext context) {

   119     }

   121     class PluginLayoutParams extends AbsoluteLayout.LayoutParams

   122     {

   123         private static final String LOGTAG = "GeckoApp.PluginLayoutParams";

   125         private RectF mRect;

   126         private int mMaxDimension;

   127         private float mLastResolution;

   129         public PluginLayoutParams(RectF rect, int maxDimension) {

   130             super(0, 0, 0, 0);

   132             mMaxDimension = maxDimension;

   133             reset(rect);

   134         }

   136         private void clampToMaxSize() {

   137             if (width > mMaxDimension || height > mMaxDimension) {

   138                 if (width > height) {

   139                     height = Math.round(((float)height/(float)width) * mMaxDimension);

   140                     width = mMaxDimension;

   141                 } else {

   142                     width = Math.round(((float)width/(float)height) * mMaxDimension);

   143                     height = mMaxDimension;

   144                 }

   145             }

   146         }

   148         public void reset(RectF rect) {

   149             mRect = rect;

   150         }

   152         public void reposition(RectF viewport, PointF offset, float zoomFactor) {

   154             RectF scaled = RectUtils.scale(mRect, zoomFactor);

   155             scaled.offset(offset.x, offset.y);

   157             this.x = Math.round(scaled.left - viewport.left);

   158             this.y = Math.round(scaled.top - viewport.top);

   160             if (!FloatUtils.fuzzyEquals(mLastResolution, zoomFactor)) {

   161                 width = Math.round(mRect.width() * zoomFactor);

   162                 height = Math.round(mRect.height() * zoomFactor);

   163                 mLastResolution = zoomFactor;

   165                 clampToMaxSize();

   166             }

   167         }

   168     }

   169 }

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