commit 4695e20aa50845ccb8470b4fcd74229503d81d49
author Michael Kolb <kolby@google.com> Fri Jan 13 16:15:11 2012 -0800
committer Michael Kolb <kolby@google.com> Fri Jan 13 16:15:11 2012 -0800
tree 80df1fcbe98e920ca547535328aa6c6264eafd9c
parent cc9858049ddea5a28cbd1d6ee59dd814e21ef512

fix layer scrollbar updates

    Bug: 5868791

tell webkit the layer has been scrolled

Change-Id: Ib12963340d950be992fbe5f9520c9a33c04404e8

core/java/android/webkit/WebView.java

diff --git a/core/java/android/webkit/WebView.java b/core/java/android/webkit/WebView.java
index 168baad..ab4665a 100644
--- a/core/java/android/webkit/WebView.java
+++ b/core/java/android/webkit/WebView.java
@@ -3742,6 +3742,8 @@
         nativeScrollLayer(mCurrentScrollingLayerId, x, y);
         mScrollingLayerRect.left = x;
         mScrollingLayerRect.top = y;
+        mWebViewCore.sendMessage(WebViewCore.EventHub.SCROLL_LAYER, mCurrentScrollingLayerId,
+                mScrollingLayerRect);
         onScrollChanged(mScrollX, mScrollY, mScrollX, mScrollY);
         invalidate();
     }

core/java/android/webkit/WebViewCore.java

diff --git a/core/java/android/webkit/WebViewCore.java b/core/java/android/webkit/WebViewCore.java
index 824f556..962a8f1 100644
--- a/core/java/android/webkit/WebViewCore.java
+++ b/core/java/android/webkit/WebViewCore.java
@@ -1097,6 +1097,8 @@
 
         static final int HEARTBEAT = 197;
 
+        static final int SCROLL_LAYER = 198;
+
         // private message ids
         private static final int DESTROY =     200;
 
@@ -1708,6 +1710,11 @@
                                 mBrowserFrame.stringByEvaluatingJavaScriptFromString((String) msg.obj);
                             }
                             break;
+                        case SCROLL_LAYER:
+                            int nativeLayer = msg.arg1;
+                            Rect rect = (Rect) msg.obj;
+                            nativeScrollLayer(mNativeClass, nativeLayer,
+                                    rect);
                     }
                 }
             };