Title: [106317] trunk/Source/WebCore
Revision
106317
Author
[email protected]
Date
2012-01-30 18:43:37 -0800 (Mon, 30 Jan 2012)

Log Message

Scrollbars don't show when scrolling on the scrolling thread
https://bugs.webkit.org/show_bug.cgi?id=77396
<rdar://problem/10710736>

Reviewed by Sam Weinig.

Use ScrollAnimator::scrollToOffsetWithoutAnimation when updating the frame view scroll offset,
since that function will end up invalidating the scrollbars correctly.

* page/ScrollingCoordinator.cpp:
(WebCore::ScrollingCoordinator::didUpdateMainFrameScrollPosition):

Modified Paths

Diff

Modified: trunk/Source/WebCore/ChangeLog (106316 => 106317)


--- trunk/Source/WebCore/ChangeLog	2012-01-31 02:43:27 UTC (rev 106316)
+++ trunk/Source/WebCore/ChangeLog	2012-01-31 02:43:37 UTC (rev 106317)
@@ -1,5 +1,19 @@
 2012-01-30  Anders Carlsson  <[email protected]>
 
+        Scrollbars don't show when scrolling on the scrolling thread
+        https://bugs.webkit.org/show_bug.cgi?id=77396
+        <rdar://problem/10710736>
+
+        Reviewed by Sam Weinig.
+
+        Use ScrollAnimator::scrollToOffsetWithoutAnimation when updating the frame view scroll offset,
+        since that function will end up invalidating the scrollbars correctly.
+
+        * page/ScrollingCoordinator.cpp:
+        (WebCore::ScrollingCoordinator::didUpdateMainFrameScrollPosition):
+
+2012-01-30  Anders Carlsson  <[email protected]>
+
         Show repaint counters in individual tiles
         https://bugs.webkit.org/show_bug.cgi?id=77390
         <rdar://problem/10767967>

Modified: trunk/Source/WebCore/page/ScrollingCoordinator.cpp (106316 => 106317)


--- trunk/Source/WebCore/page/ScrollingCoordinator.cpp	2012-01-31 02:43:27 UTC (rev 106316)
+++ trunk/Source/WebCore/page/ScrollingCoordinator.cpp	2012-01-31 02:43:37 UTC (rev 106317)
@@ -34,6 +34,7 @@
 #include "IntRect.h"
 #include "Page.h"
 #include "PlatformWheelEvent.h"
+#include "ScrollAnimator.h"
 #include <wtf/Functional.h>
 #include <wtf/MainThread.h>
 #include <wtf/PassRefPtr.h>
@@ -141,8 +142,11 @@
         m_didDispatchDidUpdateMainFrameScrollPosition = false;
     }
 
-    if (FrameView* frameView = m_page->mainFrame()->view())
-        frameView->setScrollOffset(scrollPosition);
+    if (FrameView* frameView = m_page->mainFrame()->view()) {
+        frameView->setConstrainsScrollingToContentEdge(false);
+        frameView->scrollToOffsetWithoutAnimation(scrollPosition);
+        frameView->setConstrainsScrollingToContentEdge(true);
+    }
 }
 
 } // namespace WebCore
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