X-Git-Url: http://git.webkit.org/?p=WebKit-https.git;a=blobdiff_plain;f=WebCore%2FChangeLog;h=d3abb0c6ef7498e6c57ee55b89d0e470b3f7b96f;hp=72c94d021ff0433ffd708088d74fb0e7d1350c60;hb=192732c660eb5d1c4caafb83ae12e864df5fc6b9;hpb=a7e4996f8495c7f6e3f4003dafa13c17926fab1f

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+2008-07-01  Oliver Hunt  <oliver@apple.com>
+
+        Reviewed by Geoff Garen.
+
+        <rdar://problem/5974306> CanvasRenderingContext2D becomes invalid when source canvas element is collected
+
+        In order to fix this we now make the rendering context and the canvas element
+        share the same reference count, ensuring that references to the rendering
+        context will force the canvas element to remain live as well.
+
+        Test: fast/canvas/canvas-longlived-context.html
+
+        * html/CanvasRenderingContext2D.cpp:
+        (WebCore::CanvasRenderingContext2D::clearPathForDashboardBackwardCompatibilityMode):
+        (WebCore::CanvasRenderingContext2D::createImageData):
+        (WebCore::CanvasRenderingContext2D::getImageData):
+        (WebCore::CanvasRenderingContext2D::putImageData):
+        * html/CanvasRenderingContext2D.h:
+        (WebCore::CanvasRenderingContext2D::create):
+        * html/HTMLCanvasElement.cpp:
+        (WebCore::HTMLCanvasElement::getContext):
+        * html/HTMLCanvasElement.h:
+
 2008-07-01  Alexey Proskuryakov  <ap@webkit.org>
 
         Reviewed by Darin.