Title: [174023] tags/Safari-601.1.1/Source/WebCore
Revision
174023
Author
[email protected]
Date
2014-09-26 15:05:26 -0700 (Fri, 26 Sep 2014)

Log Message

Merged r173981. <rdar://problem/18447820>

Modified Paths

Diff

Modified: tags/Safari-601.1.1/Source/WebCore/ChangeLog (174022 => 174023)


--- tags/Safari-601.1.1/Source/WebCore/ChangeLog	2014-09-26 21:57:15 UTC (rev 174022)
+++ tags/Safari-601.1.1/Source/WebCore/ChangeLog	2014-09-26 22:05:26 UTC (rev 174023)
@@ -1,3 +1,22 @@
+2014-09-26  Babak Shafiei  <[email protected]>
+
+        Merge r173981. <rdar://problem/18447820>
+
+    2014-09-25  Tim Horton  <[email protected]>
+
+            Null deref in setStateScrollingNodeSnapOffsetsAsFloat
+            https://bugs.webkit.org/show_bug.cgi?id=137133
+            <rdar://problem/18447820>
+
+            Reviewed by Beth Dakin.
+
+            * page/scrolling/AsyncScrollingCoordinator.cpp:
+            (WebCore::AsyncScrollingCoordinator::frameViewLayoutUpdated):
+            (WebCore::AsyncScrollingCoordinator::updateOverflowScrollingNode):
+            Get the deviceScaleFactor from m_page instead of various other places,
+            because scrolledContentsLayer can be null in the case of non-composited
+            overflow scroll.
+
 2014-09-22  Christophe Dumez  <[email protected]>
 
         Unreviewed build fix after r173859.

Modified: tags/Safari-601.1.1/Source/WebCore/page/scrolling/AsyncScrollingCoordinator.cpp (174022 => 174023)


--- tags/Safari-601.1.1/Source/WebCore/page/scrolling/AsyncScrollingCoordinator.cpp	2014-09-26 21:57:15 UTC (rev 174022)
+++ tags/Safari-601.1.1/Source/WebCore/page/scrolling/AsyncScrollingCoordinator.cpp	2014-09-26 22:05:26 UTC (rev 174023)
@@ -114,10 +114,10 @@
 #if ENABLE(CSS_SCROLL_SNAP)
     frameView->updateSnapOffsets();
     if (const Vector<LayoutUnit>* horizontalSnapOffsets = frameView->horizontalSnapOffsets())
-        setStateScrollingNodeSnapOffsetsAsFloat(*node, ScrollEventAxis::Horizontal, *horizontalSnapOffsets, frameView->frame().document()->deviceScaleFactor());
+        setStateScrollingNodeSnapOffsetsAsFloat(*node, ScrollEventAxis::Horizontal, *horizontalSnapOffsets, m_page->deviceScaleFactor());
 
     if (const Vector<LayoutUnit>* verticalSnapOffsets = frameView->verticalSnapOffsets())
-        setStateScrollingNodeSnapOffsetsAsFloat(*node, ScrollEventAxis::Vertical, *verticalSnapOffsets, frameView->frame().document()->deviceScaleFactor());
+        setStateScrollingNodeSnapOffsetsAsFloat(*node, ScrollEventAxis::Vertical, *verticalSnapOffsets, m_page->deviceScaleFactor());
 #endif
 
     ScrollableAreaParameters scrollParameters;
@@ -423,8 +423,8 @@
         node->setReachableContentsSize(scrollingGeometry->reachableContentSize);
         node->setScrollableAreaSize(scrollingGeometry->scrollableAreaSize);
 #if ENABLE(CSS_SCROLL_SNAP)
-        setStateScrollingNodeSnapOffsetsAsFloat(*node, ScrollEventAxis::Horizontal, scrollingGeometry->horizontalSnapOffsets, scrolledContentsLayer->deviceScaleFactor());
-        setStateScrollingNodeSnapOffsetsAsFloat(*node, ScrollEventAxis::Vertical, scrollingGeometry->verticalSnapOffsets, scrolledContentsLayer->deviceScaleFactor());
+        setStateScrollingNodeSnapOffsetsAsFloat(*node, ScrollEventAxis::Horizontal, scrollingGeometry->horizontalSnapOffsets, m_page->deviceScaleFactor());
+        setStateScrollingNodeSnapOffsetsAsFloat(*node, ScrollEventAxis::Vertical, scrollingGeometry->verticalSnapOffsets, m_page->deviceScaleFactor());
 #endif
     }
 }
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