[Android] Disable double-tap gesture detection with fixed page scale

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content.browser;
 
 import android.app.Activity;
 import android.app.SearchManager;
 import android.content.ContentResolver;
 import android.content.Context;
@@ skipping 767 matching lines @@
         mZoomControlsDelegate = new ZoomControlsDelegate() {
             @Override
             public void invokeZoomPicker() {}
             @Override
             public void dismissZoomPicker() {}
             @Override
             public void updateZoomControls() {}
         };
 
         mRenderCoordinates.reset();
+        onRenderCoordinatesUpdated();
 
         initPopupZoomer(mContext);
         mImeAdapter = createImeAdapter(mContext);
         TraceEvent.end();
     }
 
     private void initPopupZoomer(Context context){
         mPopupZoomer = new PopupZoomer(context);
         mPopupZoomer.setOnVisibilityChangedListener(new PopupZoomer.OnVisibilityChangedListener() {
             @Override
@@ skipping 628 matching lines @@
     public ContentSettings getContentSettings() {
         return mContentSettings;
     }
 
     @Override
     public boolean didUIStealScroll(float x, float y) {
         return getContentViewClient().shouldOverrideScroll(
                 x, y, computeHorizontalScrollOffset(), computeVerticalScrollOffset());
     }
 
-    @Override
-    public boolean hasFixedPageScale() {
-        return mRenderCoordinates.hasFixedPageScale();
+    private void onRenderCoordinatesUpdated() {
+        if (mContentViewGestureHandler == null) return;
+        mContentViewGestureHandler.updateHasFixedPageScale(mRenderCoordinates.hasFixedPageScale());
     }
 
     private void hidePopupDialog() {
         SelectPopupDialog.hide(this);
         hideHandles();
         hideSelectActionBar();
     }
 
     void hideSelectActionBar() {
         if (mActionMode != null) {
@@ skipping 481 matching lines @@
     }
 
     public void setZoomControlsDelegate(ZoomControlsDelegate zoomControlsDelegate) {
         mZoomControlsDelegate = zoomControlsDelegate;
     }
 
     public void updateMultiTouchZoomSupport(boolean supportsMultiTouchZoom) {
         mZoomManager.updateMultiTouchSupport(supportsMultiTouchZoom);
     }
 
-    public void updateDoubleTapDragSupport(boolean supportsDoubleTapDrag) {
-        mContentViewGestureHandler.updateDoubleTapDragSupport(supportsDoubleTapDrag);
+    public void updateDoubleTapSupport(boolean supportsDoubleTap) {
+        mContentViewGestureHandler.updateDoubleTapSupport(supportsDoubleTap);
     }
 
     public void selectPopupMenuItems(int[] indices) {
         if (mNativeContentViewCore != 0) {
             nativeSelectPopupMenuItems(mNativeContentViewCore, indices);
         }
     }
 
     /**
      * Get the screen orientation from the OS and push it to WebKit.
@@ skipping 406 matching lines @@
         final boolean needTemporarilyHideHandles = scrollChanged;
 
         if (needHidePopupZoomer) mPopupZoomer.hide(true);
 
         mRenderCoordinates.updateFrameInfo(
                 scrollOffsetX, scrollOffsetY,
                 contentWidth, contentHeight,
                 viewportWidth, viewportHeight,
                 pageScaleFactor, minPageScaleFactor, maxPageScaleFactor,
                 contentOffsetYPix);
+        onRenderCoordinatesUpdated();
 
         if (needTemporarilyHideHandles) temporarilyHideTextHandles();
         if (needUpdateZoomControls) mZoomControlsDelegate.updateZoomControls();
         if (contentOffsetChanged) updateHandleScreenPositions();
 
         // Update offsets for fullscreen.
         final float deviceScale = mRenderCoordinates.getDeviceScaleFactor();
         final float controlsOffsetPix = controlsOffsetYCss * deviceScale;
         final float overdrawBottomHeightPix = overdrawBottomHeightCss * deviceScale;
         getContentViewClient().onOffsetsForFullscreenChanged(
@@ skipping 881 matching lines @@
 
     private native void nativeAttachExternalVideoSurface(
             int nativeContentViewCoreImpl, int playerId, Surface surface);
 
     private native void nativeDetachExternalVideoSurface(
             int nativeContentViewCoreImpl, int playerId);
 
     private native void nativeSetAccessibilityEnabled(
             int nativeContentViewCoreImpl, boolean enabled);
 }