2011-06-23 Adrienne Walker <enne@google.com>

        Reviewed by Simon Fraser.

        Incorrect RenderLayer transforms on overflow RTL pages
        https://bugs.webkit.org/show_bug.cgi?id=60741

        Add a number of composited positioning tests on pages with dir=rtl.
        The reference images are all identical to what the non-composited path
        generates.

        The overflow-scrolled tests on Safari do not generate the right images
        due to bug 63284, but the layer tree is correct so they are not
        skipped.

        * compositing/rtl/rtl-absolute-expected.png: Added.
        * compositing/rtl/rtl-absolute-expected.txt: Added.
        * compositing/rtl/rtl-absolute-overflow-expected.png: Added.
        * compositing/rtl/rtl-absolute-overflow-expected.txt: Added.
        * compositing/rtl/rtl-absolute-overflow-scrolled-expected.png: Added.
        * compositing/rtl/rtl-absolute-overflow-scrolled-expected.txt: Added.
        * compositing/rtl/rtl-absolute-overflow-scrolled.html: Added.
        * compositing/rtl/rtl-absolute-overflow.html: Added.
        * compositing/rtl/rtl-absolute.html: Added.
        * compositing/rtl/rtl-fixed-expected.png: Added.
        * compositing/rtl/rtl-fixed-expected.txt: Added.
        * compositing/rtl/rtl-fixed-overflow-expected.png: Added.
        * compositing/rtl/rtl-fixed-overflow-expected.txt: Added.
        * compositing/rtl/rtl-fixed-overflow-scrolled-expected.png: Added.
        * compositing/rtl/rtl-fixed-overflow-scrolled-expected.txt: Added.
        * compositing/rtl/rtl-fixed-overflow-scrolled.html: Added.
        * compositing/rtl/rtl-fixed-overflow.html: Added.
        * compositing/rtl/rtl-fixed.html: Added.
        * compositing/rtl/rtl-iframe-absolute-expected.png: Added.
        * compositing/rtl/rtl-iframe-absolute-expected.txt: Added.
        * compositing/rtl/rtl-iframe-absolute-overflow-expected.png: Added.
        * compositing/rtl/rtl-iframe-absolute-overflow-expected.txt: Added.
        * compositing/rtl/rtl-iframe-absolute-overflow-scrolled-expected.png: Added.
        * compositing/rtl/rtl-iframe-absolute-overflow-scrolled-expected.txt: Added.
        * compositing/rtl/rtl-iframe-absolute-overflow-scrolled.html: Added.
        * compositing/rtl/rtl-iframe-absolute-overflow.html: Added.
        * compositing/rtl/rtl-iframe-absolute.html: Added.
        * compositing/rtl/rtl-iframe-fixed-expected.png: Added.
        * compositing/rtl/rtl-iframe-fixed-expected.txt: Added.
        * compositing/rtl/rtl-iframe-fixed-overflow-expected.png: Added.
        * compositing/rtl/rtl-iframe-fixed-overflow-expected.txt: Added.
        * compositing/rtl/rtl-iframe-fixed-overflow-scrolled-expected.png: Added.
        * compositing/rtl/rtl-iframe-fixed-overflow-scrolled-expected.txt: Added.
        * compositing/rtl/rtl-iframe-fixed-overflow-scrolled.html: Added.
        * compositing/rtl/rtl-iframe-fixed-overflow.html: Added.
        * compositing/rtl/rtl-iframe-fixed.html: Added.
        * compositing/rtl/rtl-iframe-relative-expected.png: Added.
        * compositing/rtl/rtl-iframe-relative-expected.txt: Added.
        * compositing/rtl/rtl-iframe-relative.html: Added.
        * compositing/rtl/rtl-relative-expected.png: Added.
        * compositing/rtl/rtl-relative-expected.txt: Added.
        * compositing/rtl/rtl-relative.html: Added.
        * compositing/rtlclipping/rtl-absolute-overflow-scrolled-expected.png: Added.
        * compositing/rtlclipping/rtl-absolute-overflow-scrolled-expected.txt: Added.
        * compositing/rtlclipping/rtl-absolute-overflow-scrolled.html: Added.
        * platform/chromium/test_expectations.txt:
        * platform/mac/Skipped:
2011-06-23  Adrienne Walker  <enne@google.com>

        Reviewed by Simon Fraser.

        Incorrect RenderLayer transforms on overflow RTL pages
        https://bugs.webkit.org/show_bug.cgi?id=60741

        Fix positioning of the root graphics layer for RTL pages.  The fact
        that the left side of the page is negative for pages with overflow is
        not taken into account when calculating the position.  This negative
        value ends up being double-counted for the root graphics layer (once
        in the position and once in the offset) and it shifts child layers
        into the wrong place.

        Tests: compositing/rtl/rtl-absolute-overflow-scrolled.html
               compositing/rtl/rtl-absolute-overflow.html
               compositing/rtl/rtl-absolute.html
               compositing/rtl/rtl-fixed-overflow-scrolled.html
               compositing/rtl/rtl-fixed-overflow.html
               compositing/rtl/rtl-fixed.html
               compositing/rtl/rtl-iframe-absolute-overflow-scrolled.html
               compositing/rtl/rtl-iframe-absolute-overflow.html
               compositing/rtl/rtl-iframe-absolute.html
               compositing/rtl/rtl-iframe-fixed-overflow-scrolled.html
               compositing/rtl/rtl-iframe-fixed-overflow.html
               compositing/rtl/rtl-iframe-fixed.html
               compositing/rtl/rtl-iframe-relative.html
               compositing/rtl/rtl-relative.html

        * rendering/RenderLayerBacking.cpp:
        (WebCore::RenderLayerBacking::updateGraphicsLayerGeometry):

git-svn-id: svn://svn.chromium.org/blink/trunk@89632 bbb929c8-8fbe-4397-9dbb-9b2b20218538

1 files changed, 37 insertions, 0 deletions

diff --git a/third_party/WebKit/LayoutTests/compositing/rtl/rtl-iframe-absolute-overflow.html b/third_party/WebKit/LayoutTests/compositing/rtl/rtl-iframe-absolute-overflow.html
new file mode 100644
index 0000000..759b03f
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/compositing/rtl/rtl-iframe-absolute-overflow.html
@@ -0,0 +1,37 @@
+<html>
+<head>
+<style>
+    body {
+        overflow: hidden;
+    }
+
+    iframe {
+        position: absolute;
+        top: 0px;
+        left: 0px;
+        width: 400px;
+        height: 400px;
+        border: none;
+    }
+
+    #layertree {
+        position: absolute;
+        top: 10000px;
+        left: 0px;
+    }
+</style>
+<script>
+    function doTest() {
+        if (window.layoutTestController) {
+            document.getElementById('layertree').innerText = layoutTestController.layerTreeAsText();
+            layoutTestController.dumpAsText(true);
+        }
+    }
+    window.addEventListener('load', doTest, false);
+</script>
+<body>
+    <iframe src="rtl-absolute-overflow.html"></iframe>
+
+    <pre id="layertree"></pre>
+</body>
+</html>