Title: [111128] trunk/Source/WebCore
Revision
111128
Author
[email protected]
Date
2012-03-17 16:57:24 -0700 (Sat, 17 Mar 2012)

Log Message

[chromium] Make pixel-accurate wheel scrolling be unanimated
https://bugs.webkit.org/show_bug.cgi?id=81457

Patch by Robert Kroeger <[email protected]> on 2012-03-17
Reviewed by James Robinson.

* platform/ScrollAnimatorNone.cpp:
(WebCore::ScrollAnimatorNone::scroll):

Modified Paths

Diff

Modified: trunk/Source/WebCore/ChangeLog (111127 => 111128)


--- trunk/Source/WebCore/ChangeLog	2012-03-17 22:56:02 UTC (rev 111127)
+++ trunk/Source/WebCore/ChangeLog	2012-03-17 23:57:24 UTC (rev 111128)
@@ -1,3 +1,13 @@
+2012-03-17  Robert Kroeger  <[email protected]>
+
+        [chromium] Make pixel-accurate wheel scrolling be unanimated
+        https://bugs.webkit.org/show_bug.cgi?id=81457
+
+        Reviewed by James Robinson.
+
+        * platform/ScrollAnimatorNone.cpp:
+        (WebCore::ScrollAnimatorNone::scroll):
+
 2012-03-17  Rob Buis  <[email protected]>
 
         [BlackBerry] Implement openTemporaryFile in FileSystem

Modified: trunk/Source/WebCore/platform/ScrollAnimatorNone.cpp (111127 => 111128)


--- trunk/Source/WebCore/platform/ScrollAnimatorNone.cpp	2012-03-17 22:56:02 UTC (rev 111127)
+++ trunk/Source/WebCore/platform/ScrollAnimatorNone.cpp	2012-03-17 23:57:24 UTC (rev 111128)
@@ -423,8 +423,13 @@
         parameters = Parameters(true, 15 * kTickTime, 10 * kTickTime, Cubic, 5 * kTickTime, Cubic, 5 * kTickTime, Linear, 1);
         break;
     case ScrollByPixel:
+#if PLATFORM(CHROMIUM)
+        // FIXME: plumb a flag specifying precise deltas.
+        return ScrollAnimator::scroll(orientation, granularity, step, multiplier);
+#else
         parameters = Parameters(true, 11 * kTickTime, 2 * kTickTime, Cubic, 3 * kTickTime, Cubic, 3 * kTickTime, Quadratic, 1.25);
         break;
+#endif
     case ScrollByPixelVelocity:
         // FIXME: Generalize the scroll interface to support a richer set of parameters.
         if (m_firstVelocitySet) {
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