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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/213566">213566</a></dd>
<dt>Author</dt> <dd>simon.fraser@apple.com</dd>
<dt>Date</dt> <dd>2017-03-07 21:46:52 -0800 (Tue, 07 Mar 2017)</dd>
</dl>
<h3>Log Message</h3>
<pre>Have fixedPositionCreatesStackingContext be on by default everywhere
https://bugs.webkit.org/show_bug.cgi?id=169334
Reviewed by Zalan Bujtas.
It makes no sense to have web-exposed CSS functionality be different based on setting,
and other browser are now aligned with having position:fixed create stacking context.
So remove the fixedPositionCreatesStackingContext setting and have StyleResolver::adjustRenderStyle()
always force stacking context for position:fixed.
Source/WebCore:
* css/StyleResolver.cpp:
(WebCore::StyleResolver::adjustRenderStyle):
* page/Settings.cpp:
* page/Settings.in:
Source/WebKit/mac:
* WebView/WebView.mm:
(-[WebView _preferencesChanged:]):
Source/WebKit2:
* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::setUseFixedLayout):
* WebProcess/WebPage/mac/RemoteLayerTreeDrawingArea.mm:
(WebKit::RemoteLayerTreeDrawingArea::updatePreferences):
* WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm:
(WebKit::TiledCoreAnimationDrawingArea::updatePreferences):
LayoutTests:
* compositing/absolute-inside-out-of-view-fixed.html:
* compositing/geometry/fixed-position-composited-page-scale-smaller-than-viewport.html:
* compositing/layer-creation/fixed-overlap-extent-rtl.html:
* compositing/layer-creation/fixed-overlap-extent.html:
* compositing/layer-creation/fixed-position-change-out-of-view-in-view.html:
* compositing/layer-creation/fixed-position-in-view-dynamic.html:
* compositing/layer-creation/fixed-position-out-of-view-dynamic.html:
* compositing/layer-creation/fixed-position-out-of-view-scaled-iframe-scroll.html:
* compositing/layer-creation/fixed-position-out-of-view-scaled-iframe.html:
* compositing/layer-creation/fixed-position-out-of-view-scaled-scroll.html:
* compositing/layer-creation/fixed-position-out-of-view-scaled.html:
* compositing/layer-creation/fixed-position-transformed-into-view.html:
* compositing/layer-creation/fixed-position-transformed-outside-view.html:
* compositing/layer-creation/no-compositing-for-fixed-position-under-transform.html:
* compositing/repaint/scroll-fixed-layer-no-content.html:
* compositing/repaint/scroll-fixed-layer-out-of-view.html:
* fast/block/positioning/fixed-position-stacking-context2.html:
* fullscreen/full-screen-fixed-pos-parent.html:</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkLayoutTestscompositingabsoluteinsideoutofviewfixedhtml">trunk/LayoutTests/compositing/absolute-inside-out-of-view-fixed.html</a></li>
<li><a href="#trunkLayoutTestscompositinggeometryfixedpositioncompositedpagescalesmallerthanviewporthtml">trunk/LayoutTests/compositing/geometry/fixed-position-composited-page-scale-smaller-than-viewport.html</a></li>
<li><a href="#trunkLayoutTestscompositinglayercreationfixedoverlapextentrtlhtml">trunk/LayoutTests/compositing/layer-creation/fixed-overlap-extent-rtl.html</a></li>
<li><a href="#trunkLayoutTestscompositinglayercreationfixedoverlapextenthtml">trunk/LayoutTests/compositing/layer-creation/fixed-overlap-extent.html</a></li>
<li><a href="#trunkLayoutTestscompositinglayercreationfixedpositionchangeoutofviewinviewhtml">trunk/LayoutTests/compositing/layer-creation/fixed-position-change-out-of-view-in-view.html</a></li>
<li><a href="#trunkLayoutTestscompositinglayercreationfixedpositioninviewdynamichtml">trunk/LayoutTests/compositing/layer-creation/fixed-position-in-view-dynamic.html</a></li>
<li><a href="#trunkLayoutTestscompositinglayercreationfixedpositionoutofviewdynamichtml">trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-dynamic.html</a></li>
<li><a href="#trunkLayoutTestscompositinglayercreationfixedpositionoutofviewscalediframescrollhtml">trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled-iframe-scroll.html</a></li>
<li><a href="#trunkLayoutTestscompositinglayercreationfixedpositionoutofviewscalediframehtml">trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled-iframe.html</a></li>
<li><a href="#trunkLayoutTestscompositinglayercreationfixedpositionoutofviewscaledscrollhtml">trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled-scroll.html</a></li>
<li><a href="#trunkLayoutTestscompositinglayercreationfixedpositionoutofviewscaledhtml">trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled.html</a></li>
<li><a href="#trunkLayoutTestscompositinglayercreationfixedpositiontransformedintoviewhtml">trunk/LayoutTests/compositing/layer-creation/fixed-position-transformed-into-view.html</a></li>
<li><a href="#trunkLayoutTestscompositinglayercreationfixedpositiontransformedoutsideviewhtml">trunk/LayoutTests/compositing/layer-creation/fixed-position-transformed-outside-view.html</a></li>
<li><a href="#trunkLayoutTestscompositinglayercreationnocompositingforfixedpositionundertransformhtml">trunk/LayoutTests/compositing/layer-creation/no-compositing-for-fixed-position-under-transform.html</a></li>
<li><a href="#trunkLayoutTestscompositingrepaintscrollfixedlayernocontenthtml">trunk/LayoutTests/compositing/repaint/scroll-fixed-layer-no-content.html</a></li>
<li><a href="#trunkLayoutTestscompositingrepaintscrollfixedlayeroutofviewhtml">trunk/LayoutTests/compositing/repaint/scroll-fixed-layer-out-of-view.html</a></li>
<li><a href="#trunkLayoutTestsfastblockpositioningfixedpositionstackingcontext2html">trunk/LayoutTests/fast/block/positioning/fixed-position-stacking-context2.html</a></li>
<li><a href="#trunkLayoutTestsfullscreenfullscreenfixedposparenthtml">trunk/LayoutTests/fullscreen/full-screen-fixed-pos-parent.html</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCorecssStyleResolvercpp">trunk/Source/WebCore/css/StyleResolver.cpp</a></li>
<li><a href="#trunkSourceWebCorepageSettingscpp">trunk/Source/WebCore/page/Settings.cpp</a></li>
<li><a href="#trunkSourceWebCorepageSettingsin">trunk/Source/WebCore/page/Settings.in</a></li>
<li><a href="#trunkSourceWebKitmacChangeLog">trunk/Source/WebKit/mac/ChangeLog</a></li>
<li><a href="#trunkSourceWebKitmacWebViewWebViewmm">trunk/Source/WebKit/mac/WebView/WebView.mm</a></li>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2WebProcessWebPageDrawingAreaImplcpp">trunk/Source/WebKit2/WebProcess/WebPage/DrawingAreaImpl.cpp</a></li>
<li><a href="#trunkSourceWebKit2WebProcessWebPageWebPagecpp">trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp</a></li>
<li><a href="#trunkSourceWebKit2WebProcessWebPagemacRemoteLayerTreeDrawingAreamm">trunk/Source/WebKit2/WebProcess/WebPage/mac/RemoteLayerTreeDrawingArea.mm</a></li>
<li><a href="#trunkSourceWebKit2WebProcessWebPagemacTiledCoreAnimationDrawingAreamm">trunk/Source/WebKit2/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/ChangeLog 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -1,3 +1,35 @@
</span><ins>+2017-03-07 Simon Fraser <simon.fraser@apple.com>
+
+ Have fixedPositionCreatesStackingContext be on by default everywhere
+ https://bugs.webkit.org/show_bug.cgi?id=169334
+
+ Reviewed by Zalan Bujtas.
+
+ It makes no sense to have web-exposed CSS functionality be different based on setting,
+ and other browser are now aligned with having position:fixed create stacking context.
+
+ So remove the fixedPositionCreatesStackingContext setting and have StyleResolver::adjustRenderStyle()
+ always force stacking context for position:fixed.
+
+ * compositing/absolute-inside-out-of-view-fixed.html:
+ * compositing/geometry/fixed-position-composited-page-scale-smaller-than-viewport.html:
+ * compositing/layer-creation/fixed-overlap-extent-rtl.html:
+ * compositing/layer-creation/fixed-overlap-extent.html:
+ * compositing/layer-creation/fixed-position-change-out-of-view-in-view.html:
+ * compositing/layer-creation/fixed-position-in-view-dynamic.html:
+ * compositing/layer-creation/fixed-position-out-of-view-dynamic.html:
+ * compositing/layer-creation/fixed-position-out-of-view-scaled-iframe-scroll.html:
+ * compositing/layer-creation/fixed-position-out-of-view-scaled-iframe.html:
+ * compositing/layer-creation/fixed-position-out-of-view-scaled-scroll.html:
+ * compositing/layer-creation/fixed-position-out-of-view-scaled.html:
+ * compositing/layer-creation/fixed-position-transformed-into-view.html:
+ * compositing/layer-creation/fixed-position-transformed-outside-view.html:
+ * compositing/layer-creation/no-compositing-for-fixed-position-under-transform.html:
+ * compositing/repaint/scroll-fixed-layer-no-content.html:
+ * compositing/repaint/scroll-fixed-layer-out-of-view.html:
+ * fast/block/positioning/fixed-position-stacking-context2.html:
+ * fullscreen/full-screen-fixed-pos-parent.html:
+
</ins><span class="cx"> 2017-03-07 Jiewen Tan <jiewen_tan@apple.com>
</span><span class="cx">
</span><span class="cx"> [WebCrypto] Implement ECDH ImportKey/ExportKey operations
</span></span></pre></div>
<a id="trunkLayoutTestscompositingabsoluteinsideoutofviewfixedhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/absolute-inside-out-of-view-fixed.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/absolute-inside-out-of-view-fixed.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/absolute-inside-out-of-view-fixed.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -29,10 +29,8 @@
</span><span class="cx"> if (window.testRunner) {
</span><span class="cx"> testRunner.waitUntilDone();
</span><span class="cx"> testRunner.dumpAsText();
</span><del>- if (window.internals) {
</del><ins>+ if (window.internals)
</ins><span class="cx"> window.internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- window.internals.settings.setFixedPositionCreatesStackingContext(true);
- }
</del><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> function doScroll()
</span></span></pre></div>
<a id="trunkLayoutTestscompositinggeometryfixedpositioncompositedpagescalesmallerthanviewporthtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/geometry/fixed-position-composited-page-scale-smaller-than-viewport.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/geometry/fixed-position-composited-page-scale-smaller-than-viewport.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/geometry/fixed-position-composited-page-scale-smaller-than-viewport.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -27,7 +27,6 @@
</span><span class="cx"> if (window.internals) {
</span><span class="cx"> window.internals.settings.setVisualViewportEnabled(false);
</span><span class="cx"> window.internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- window.internals.settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx"> window.internals.setPageScaleFactor(0.5, 0, 0);
</span><span class="cx"> }
</span><span class="cx"> </script>
</span></span></pre></div>
<a id="trunkLayoutTestscompositinglayercreationfixedoverlapextentrtlhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/layer-creation/fixed-overlap-extent-rtl.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/layer-creation/fixed-overlap-extent-rtl.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/layer-creation/fixed-overlap-extent-rtl.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -35,10 +35,8 @@
</span><span class="cx"> if (window.testRunner)
</span><span class="cx"> testRunner.dumpAsText();
</span><span class="cx">
</span><del>- if (window.internals) {
</del><ins>+ if (window.internals)
</ins><span class="cx"> internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- internals.settings.setFixedPositionCreatesStackingContext(true);
- }
</del><span class="cx">
</span><span class="cx"> function doTest()
</span><span class="cx"> {
</span></span></pre></div>
<a id="trunkLayoutTestscompositinglayercreationfixedoverlapextenthtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/layer-creation/fixed-overlap-extent.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/layer-creation/fixed-overlap-extent.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/layer-creation/fixed-overlap-extent.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -35,10 +35,8 @@
</span><span class="cx"> if (window.testRunner)
</span><span class="cx"> testRunner.dumpAsText();
</span><span class="cx">
</span><del>- if (window.internals) {
</del><ins>+ if (window.internals)
</ins><span class="cx"> internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- internals.settings.setFixedPositionCreatesStackingContext(true);
- }
</del><span class="cx">
</span><span class="cx"> function doTest()
</span><span class="cx"> {
</span></span></pre></div>
<a id="trunkLayoutTestscompositinglayercreationfixedpositionchangeoutofviewinviewhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/layer-creation/fixed-position-change-out-of-view-in-view.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/layer-creation/fixed-position-change-out-of-view-in-view.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/layer-creation/fixed-position-change-out-of-view-in-view.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -11,7 +11,6 @@
</span><span class="cx"> if (window.testRunner && window.internals) {
</span><span class="cx"> testRunner.dumpAsText();
</span><span class="cx"> internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- internals.settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx">
</span><span class="cx"> addEventListener("load", function() {
</span><span class="cx"> document.getElementById("layerTree1").innerText = internals.layerTreeAsText(document);
</span></span></pre></div>
<a id="trunkLayoutTestscompositinglayercreationfixedpositioninviewdynamichtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/layer-creation/fixed-position-in-view-dynamic.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/layer-creation/fixed-position-in-view-dynamic.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/layer-creation/fixed-position-in-view-dynamic.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -16,7 +16,6 @@
</span><span class="cx"> if (window.testRunner && window.internals) {
</span><span class="cx"> testRunner.dumpAsText();
</span><span class="cx"> internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- internals.settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx">
</span><span class="cx"> addEventListener("load", function() {
</span><span class="cx"> var fixed = document.createElement("div");
</span></span></pre></div>
<a id="trunkLayoutTestscompositinglayercreationfixedpositionoutofviewdynamichtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-dynamic.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-dynamic.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-dynamic.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -16,7 +16,6 @@
</span><span class="cx"> if (window.testRunner && window.internals) {
</span><span class="cx"> testRunner.dumpAsText();
</span><span class="cx"> internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- internals.settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx">
</span><span class="cx"> addEventListener("load", function() {
</span><span class="cx"> var fixed = document.createElement("div");
</span></span></pre></div>
<a id="trunkLayoutTestscompositinglayercreationfixedpositionoutofviewscalediframescrollhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled-iframe-scroll.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled-iframe-scroll.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled-iframe-scroll.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -8,7 +8,6 @@
</span><span class="cx"> }
</span><span class="cx"> if (window.internals) {
</span><span class="cx"> window.internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- window.internals.settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx">
</span><span class="cx"> addEventListener("load", function() {
</span><span class="cx"> window.internals.setPageScaleFactor(0.5, 0, 0);
</span></span></pre></div>
<a id="trunkLayoutTestscompositinglayercreationfixedpositionoutofviewscalediframehtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled-iframe.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled-iframe.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled-iframe.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -8,7 +8,6 @@
</span><span class="cx"> }
</span><span class="cx"> if (window.internals) {
</span><span class="cx"> window.internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- window.internals.settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx">
</span><span class="cx"> addEventListener("load", function() {
</span><span class="cx"> window.internals.setPageScaleFactor(0.5, 0, 0);
</span></span></pre></div>
<a id="trunkLayoutTestscompositinglayercreationfixedpositionoutofviewscaledscrollhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled-scroll.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled-scroll.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled-scroll.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -16,7 +16,6 @@
</span><span class="cx"> }
</span><span class="cx"> if (window.internals) {
</span><span class="cx"> window.internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- window.internals.settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx">
</span><span class="cx"> addEventListener("load", function() {
</span><span class="cx"> window.scrollTo(100,100);
</span></span></pre></div>
<a id="trunkLayoutTestscompositinglayercreationfixedpositionoutofviewscaledhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/layer-creation/fixed-position-out-of-view-scaled.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -16,7 +16,6 @@
</span><span class="cx"> }
</span><span class="cx"> if (window.internals) {
</span><span class="cx"> window.internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- window.internals.settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx">
</span><span class="cx"> addEventListener("load", function() {
</span><span class="cx"> document.getElementById("layerTree").innerText = internals.layerTreeAsText(document);
</span></span></pre></div>
<a id="trunkLayoutTestscompositinglayercreationfixedpositiontransformedintoviewhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/layer-creation/fixed-position-transformed-into-view.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/layer-creation/fixed-position-transformed-into-view.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/layer-creation/fixed-position-transformed-into-view.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -31,7 +31,6 @@
</span><span class="cx"> }
</span><span class="cx"> if (window.internals) {
</span><span class="cx"> window.internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- window.internals.settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx">
</span><span class="cx"> window.addEventListener("load", function() {
</span><span class="cx"> document.getElementById("layerTree").innerText = internals.layerTreeAsText(document);
</span></span></pre></div>
<a id="trunkLayoutTestscompositinglayercreationfixedpositiontransformedoutsideviewhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/layer-creation/fixed-position-transformed-outside-view.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/layer-creation/fixed-position-transformed-outside-view.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/layer-creation/fixed-position-transformed-outside-view.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -31,7 +31,6 @@
</span><span class="cx"> }
</span><span class="cx"> if (window.internals) {
</span><span class="cx"> window.internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- window.internals.settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx">
</span><span class="cx"> window.addEventListener("load", function() {
</span><span class="cx"> document.getElementById("layerTree").innerText = internals.layerTreeAsText(document);
</span></span></pre></div>
<a id="trunkLayoutTestscompositinglayercreationnocompositingforfixedpositionundertransformhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/layer-creation/no-compositing-for-fixed-position-under-transform.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/layer-creation/no-compositing-for-fixed-position-under-transform.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/layer-creation/no-compositing-for-fixed-position-under-transform.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -15,10 +15,8 @@
</span><span class="cx"> </style>
</span><span class="cx">
</span><span class="cx"> <script type="text/javascript">
</span><del>- if (window.internals) {
</del><ins>+ if (window.internals)
</ins><span class="cx"> window.internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- window.internals.settings.setFixedPositionCreatesStackingContext(true);
- }
</del><span class="cx">
</span><span class="cx"> if (window.testRunner) {
</span><span class="cx"> testRunner.dumpAsText();
</span></span></pre></div>
<a id="trunkLayoutTestscompositingrepaintscrollfixedlayernocontenthtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/repaint/scroll-fixed-layer-no-content.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/repaint/scroll-fixed-layer-no-content.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/repaint/scroll-fixed-layer-no-content.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -5,10 +5,8 @@
</span><span class="cx"> if (window.testRunner)
</span><span class="cx"> testRunner.dumpAsText();
</span><span class="cx">
</span><del>- if (window.internals) {
</del><ins>+ if (window.internals)
</ins><span class="cx"> internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- internals.settings.setFixedPositionCreatesStackingContext(true);
- }
</del><span class="cx">
</span><span class="cx"> function test()
</span><span class="cx"> {
</span></span></pre></div>
<a id="trunkLayoutTestscompositingrepaintscrollfixedlayeroutofviewhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/compositing/repaint/scroll-fixed-layer-out-of-view.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/compositing/repaint/scroll-fixed-layer-out-of-view.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/compositing/repaint/scroll-fixed-layer-out-of-view.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -5,10 +5,8 @@
</span><span class="cx"> if (window.testRunner)
</span><span class="cx"> testRunner.dumpAsText();
</span><span class="cx">
</span><del>- if (window.internals) {
</del><ins>+ if (window.internals)
</ins><span class="cx"> internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- internals.settings.setFixedPositionCreatesStackingContext(true);
- }
</del><span class="cx">
</span><span class="cx"> function test()
</span><span class="cx"> {
</span></span></pre></div>
<a id="trunkLayoutTestsfastblockpositioningfixedpositionstackingcontext2html"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/fast/block/positioning/fixed-position-stacking-context2.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/block/positioning/fixed-position-stacking-context2.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/fast/block/positioning/fixed-position-stacking-context2.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -23,13 +23,6 @@
</span><span class="cx"> z-index: 2;
</span><span class="cx"> }
</span><span class="cx"> </style>
</span><del>-<script>
-if ("internals" in window) {
- window.internals.settings.setFixedPositionCreatesStackingContext(true);
-} else {
- document.write("This test depends on the FixedPositionCreatesStackingContext setting being true, so run in DumpRenderTree or manually enable it");
-}
-</script>
</del><span class="cx"> <div class="green"></div>
</span><span class="cx"> <div class="container">
</span><span class="cx"> <div class="green"></div>
</span></span></pre></div>
<a id="trunkLayoutTestsfullscreenfullscreenfixedposparenthtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/fullscreen/full-screen-fixed-pos-parent.html (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fullscreen/full-screen-fixed-pos-parent.html 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/LayoutTests/fullscreen/full-screen-fixed-pos-parent.html 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -26,9 +26,6 @@
</span><span class="cx"> </head>
</span><span class="cx"> <script src="full-screen-test.js"></script>
</span><span class="cx"> <script>
</span><del>- if (window.internals)
- window.internals.settings.setFixedPositionCreatesStackingContext(true);
-
</del><span class="cx"> function doTest() {
</span><span class="cx"> if (window.testRunner) {
</span><span class="cx"> testRunner.dumpAsText(true);
</span></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/Source/WebCore/ChangeLog 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -1,3 +1,21 @@
</span><ins>+2017-03-07 Simon Fraser <simon.fraser@apple.com>
+
+ Have fixedPositionCreatesStackingContext be on by default everywhere
+ https://bugs.webkit.org/show_bug.cgi?id=169334
+
+ Reviewed by Zalan Bujtas.
+
+ It makes no sense to have web-exposed CSS functionality be different based on setting,
+ and other browser are now aligned with having position:fixed create stacking context.
+
+ So remove the fixedPositionCreatesStackingContext setting and have StyleResolver::adjustRenderStyle()
+ always force stacking context for position:fixed.
+
+ * css/StyleResolver.cpp:
+ (WebCore::StyleResolver::adjustRenderStyle):
+ * page/Settings.cpp:
+ * page/Settings.in:
+
</ins><span class="cx"> 2017-03-07 Said Abou-Hallawa <sabouhallawa@apple.com>
</span><span class="cx">
</span><span class="cx"> Asynchronous image decoding should consider the drawing size if it is smaller than the size of the image
</span></span></pre></div>
<a id="trunkSourceWebCorecssStyleResolvercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/css/StyleResolver.cpp (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/StyleResolver.cpp 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/Source/WebCore/css/StyleResolver.cpp 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -911,7 +911,7 @@
</span><span class="cx"> || style.hasBlendMode()
</span><span class="cx"> || style.hasIsolation()
</span><span class="cx"> || style.position() == StickyPosition
</span><del>- || (style.position() == FixedPosition && settings().fixedPositionCreatesStackingContext())
</del><ins>+ || style.position() == FixedPosition
</ins><span class="cx"> || style.hasFlowFrom()
</span><span class="cx"> || style.willChangeCreatesStackingContext())
</span><span class="cx"> style.setZIndex(0);
</span></span></pre></div>
<a id="trunkSourceWebCorepageSettingscpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/Settings.cpp (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/Settings.cpp 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/Source/WebCore/page/Settings.cpp 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -142,7 +142,6 @@
</span><span class="cx"> #endif
</span><span class="cx">
</span><span class="cx"> #if PLATFORM(IOS)
</span><del>-static const bool defaultFixedPositionCreatesStackingContext = true;
</del><span class="cx"> static const bool defaultFixedBackgroundsPaintRelativeToDocument = true;
</span><span class="cx"> static const bool defaultAcceleratedCompositingForFixedPositionEnabled = true;
</span><span class="cx"> static const bool defaultAllowsInlineMediaPlayback = false;
</span><span class="lines">@@ -156,7 +155,6 @@
</span><span class="cx"> static const bool defaultMediaControlsScaleWithPageZoom = true;
</span><span class="cx"> static const bool defaultQuickTimePluginReplacementEnabled = true;
</span><span class="cx"> #else
</span><del>-static const bool defaultFixedPositionCreatesStackingContext = false;
</del><span class="cx"> static const bool defaultFixedBackgroundsPaintRelativeToDocument = false;
</span><span class="cx"> static const bool defaultAcceleratedCompositingForFixedPositionEnabled = false;
</span><span class="cx"> static const bool defaultAllowsInlineMediaPlayback = true;
</span></span></pre></div>
<a id="trunkSourceWebCorepageSettingsin"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/Settings.in (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/Settings.in 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/Source/WebCore/page/Settings.in 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -158,7 +158,6 @@
</span><span class="cx"> wantsBalancedSetDefersLoadingBehavior initial=false
</span><span class="cx"> requestAnimationFrameEnabled initial=true
</span><span class="cx">
</span><del>-fixedPositionCreatesStackingContext initial=defaultFixedPositionCreatesStackingContext
</del><span class="cx"> cookieEnabled initial=true
</span><span class="cx"> mediaEnabled initial=true
</span><span class="cx"> DOMPasteAllowed initial=false
</span></span></pre></div>
<a id="trunkSourceWebKitmacChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/ChangeLog (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/ChangeLog 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/Source/WebKit/mac/ChangeLog 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -1,3 +1,19 @@
</span><ins>+2017-03-07 Simon Fraser <simon.fraser@apple.com>
+
+ Have fixedPositionCreatesStackingContext be on by default everywhere
+ https://bugs.webkit.org/show_bug.cgi?id=169334
+
+ Reviewed by Zalan Bujtas.
+
+ It makes no sense to have web-exposed CSS functionality be different based on setting,
+ and other browser are now aligned with having position:fixed create stacking context.
+
+ So remove the fixedPositionCreatesStackingContext setting and have StyleResolver::adjustRenderStyle()
+ always force stacking context for position:fixed.
+
+ * WebView/WebView.mm:
+ (-[WebView _preferencesChanged:]):
+
</ins><span class="cx"> 2017-03-06 Simon Fraser <simon.fraser@apple.com>
</span><span class="cx">
</span><span class="cx"> Initialize the subpixelAntialiasedLayerTextEnabled Setting in WebKit1
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebViewWebViewmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebView/WebView.mm (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebView/WebView.mm 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/Source/WebKit/mac/WebView/WebView.mm 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -2776,7 +2776,6 @@
</span><span class="cx"> settings.setPlugInSnapshottingEnabled([preferences plugInSnapshottingEnabled]);
</span><span class="cx"> settings.setHttpEquivEnabled([preferences httpEquivEnabled]);
</span><span class="cx">
</span><del>- settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx"> #if PLATFORM(MAC)
</span><span class="cx"> settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><span class="cx"> #endif
</span></span></pre></div>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/Source/WebKit2/ChangeLog 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -1,3 +1,23 @@
</span><ins>+2017-03-07 Simon Fraser <simon.fraser@apple.com>
+
+ Have fixedPositionCreatesStackingContext be on by default everywhere
+ https://bugs.webkit.org/show_bug.cgi?id=169334
+
+ Reviewed by Zalan Bujtas.
+
+ It makes no sense to have web-exposed CSS functionality be different based on setting,
+ and other browser are now aligned with having position:fixed create stacking context.
+
+ So remove the fixedPositionCreatesStackingContext setting and have StyleResolver::adjustRenderStyle()
+ always force stacking context for position:fixed.
+
+ * WebProcess/WebPage/WebPage.cpp:
+ (WebKit::WebPage::setUseFixedLayout):
+ * WebProcess/WebPage/mac/RemoteLayerTreeDrawingArea.mm:
+ (WebKit::RemoteLayerTreeDrawingArea::updatePreferences):
+ * WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm:
+ (WebKit::TiledCoreAnimationDrawingArea::updatePreferences):
+
</ins><span class="cx"> 2017-03-07 Brent Fulgham <bfulgham@apple.com>
</span><span class="cx">
</span><span class="cx"> [Mac][WK2] Whitelist iokit-get-properties
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessWebPageDrawingAreaImplcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/WebPage/DrawingAreaImpl.cpp (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/WebPage/DrawingAreaImpl.cpp 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/Source/WebKit2/WebProcess/WebPage/DrawingAreaImpl.cpp 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -183,7 +183,6 @@
</span><span class="cx"> // Fixed position elements need to be composited and create stacking contexts
</span><span class="cx"> // in order to be scrolled by the ScrollingCoordinator.
</span><span class="cx"> settings.setAcceleratedCompositingForFixedPositionEnabled(settings.acceleratedCompositingEnabled());
</span><del>- settings.setFixedPositionCreatesStackingContext(settings.acceleratedCompositingEnabled());
</del><span class="cx"> #endif
</span><span class="cx">
</span><span class="cx"> m_alwaysUseCompositing = settings.acceleratedCompositingEnabled() && settings.forceCompositingMode();
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessWebPageWebPagecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -1681,7 +1681,6 @@
</span><span class="cx"> #endif
</span><span class="cx"> #if USE(COORDINATED_GRAPHICS)
</span><span class="cx"> m_page->settings().setAcceleratedCompositingForFixedPositionEnabled(fixed);
</span><del>- m_page->settings().setFixedPositionCreatesStackingContext(fixed);
</del><span class="cx"> m_page->settings().setDelegatesPageScaling(fixed);
</span><span class="cx"> m_page->settings().setScrollingCoordinatorEnabled(fixed);
</span><span class="cx"> #endif
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessWebPagemacRemoteLayerTreeDrawingAreamm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/WebPage/mac/RemoteLayerTreeDrawingArea.mm (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/WebPage/mac/RemoteLayerTreeDrawingArea.mm 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/Source/WebKit2/WebProcess/WebPage/mac/RemoteLayerTreeDrawingArea.mm 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -177,7 +177,6 @@
</span><span class="cx"> // Fixed position elements need to be composited and create stacking contexts
</span><span class="cx"> // in order to be scrolled by the ScrollingCoordinator.
</span><span class="cx"> settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx">
</span><span class="cx"> m_rootLayer->setShowDebugBorder(settings.showDebugBorders());
</span><span class="cx">
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessWebPagemacTiledCoreAnimationDrawingAreamm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm (213565 => 213566)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm 2017-03-08 05:18:35 UTC (rev 213565)
+++ trunk/Source/WebKit2/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm 2017-03-08 05:46:52 UTC (rev 213566)
</span><span class="lines">@@ -202,11 +202,8 @@
</span><span class="cx"> #endif
</span><span class="cx">
</span><span class="cx"> // Fixed position elements need to be composited and create stacking contexts
</span><del>- // in order to be scrolled by the ScrollingCoordinator. We also want to keep
- // Settings:setFixedPositionCreatesStackingContext() enabled for iOS. See
- // <rdar://problem/9813262> for more details.
</del><ins>+ // in order to be scrolled by the ScrollingCoordinator.
</ins><span class="cx"> settings.setAcceleratedCompositingForFixedPositionEnabled(true);
</span><del>- settings.setFixedPositionCreatesStackingContext(true);
</del><span class="cx">
</span><span class="cx"> if (MainFrame* mainFrame = m_webPage.mainFrame())
</span><span class="cx"> DebugPageOverlays::settingsChanged(*mainFrame);
</span></span></pre>
</div>
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</html>