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<dl class="meta">

<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/165086">165086</a></dd>

<dt>Author</dt> <dd>simon.fraser@apple.com</dd>

<dt>Date</dt> <dd>2014-03-04 17:24:05 -0800 (Tue, 04 Mar 2014)</dd>

</dl>

<h3>Log Message</h3>

<pre>Source/WebCore: Get position:fixed working slightly better on iOS

https://bugs.webkit.org/show_bug.cgi?id=129714

Reviewed by Benjamin Poulain.

Send the scroll position as a FloatPoint, rather than an IntPoint.

* WebCore.exp.in:

* page/scrolling/ScrollingTree.cpp:

(WebCore::ScrollingTree::scrollPositionChangedViaDelegatedScrolling):

* page/scrolling/ScrollingTree.h:

Source/WebKit2: Get position:fixed working slightly better on iOS WK2

https://bugs.webkit.org/show_bug.cgi?id=129714

Reviewed by Benjamin Poulain.

Start telling the RemoteScrollingCoordinatorProxy about scroll position changes

again, so it can update fixed and sticky layers.

Send the scroll position as a FloatPoint, rather than an IntPoint.

* UIProcess/Scrolling/RemoteScrollingCoordinatorProxy.cpp:

(WebKit::RemoteScrollingCoordinatorProxy::scrollPositionChangedViaDelegatedScrolling):

(WebKit::RemoteScrollingCoordinatorProxy::scrollPositionChanged):

* UIProcess/Scrolling/RemoteScrollingCoordinatorProxy.h:

* UIProcess/WebPageProxy.h:

* UIProcess/ios/WKContentView.mm:

(-[WKContentView didUpdateVisibleRect:unobscuredRect:scale:inStableState:]):

Tell the RemoteScrollingCoordinatorProxy about the scroll update.

Only update the customFixedPositionRect if we've finished scrolling or zooming.

* UIProcess/ios/WebPageProxyIOS.mm:

(WebKit::WebPageProxy::updateVisibleContentRects): Return a bool indicating

whether the visible rects changed.</pre>

<h3>Modified Paths</h3>

<ul>

<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>

<li><a href="#trunkSourceWebCoreWebCoreexpin">trunk/Source/WebCore/WebCore.exp.in</a></li>

<li><a href="#trunkSourceWebCorepagescrollingScrollingTreecpp">trunk/Source/WebCore/page/scrolling/ScrollingTree.cpp</a></li>

<li><a href="#trunkSourceWebCorepagescrollingScrollingTreeh">trunk/Source/WebCore/page/scrolling/ScrollingTree.h</a></li>

<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>

<li><a href="#trunkSourceWebKit2UIProcessScrollingRemoteScrollingCoordinatorProxycpp">trunk/Source/WebKit2/UIProcess/Scrolling/RemoteScrollingCoordinatorProxy.cpp</a></li>

<li><a href="#trunkSourceWebKit2UIProcessScrollingRemoteScrollingCoordinatorProxyh">trunk/Source/WebKit2/UIProcess/Scrolling/RemoteScrollingCoordinatorProxy.h</a></li>

<li><a href="#trunkSourceWebKit2UIProcessWebPageProxyh">trunk/Source/WebKit2/UIProcess/WebPageProxy.h</a></li>

<li><a href="#trunkSourceWebKit2UIProcessiosWKContentViewmm">trunk/Source/WebKit2/UIProcess/ios/WKContentView.mm</a></li>

<li><a href="#trunkSourceWebKit2UIProcessiosWebPageProxyIOSmm">trunk/Source/WebKit2/UIProcess/ios/WebPageProxyIOS.mm</a></li>

</ul>

</div>

<div id="patch">

<h3>Diff</h3>

<a id="trunkSourceWebCoreChangeLog"></a>

<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (165085 => 165086)</h4>

<pre class="diff"><span>

<span class="info">--- trunk/Source/WebCore/ChangeLog        2014-03-05 01:03:55 UTC (rev 165085)

+++ trunk/Source/WebCore/ChangeLog        2014-03-05 01:24:05 UTC (rev 165086)

</span><span class="lines">@@ -1,3 +1,17 @@

</span><ins>+2014-03-04  Simon Fraser  &lt;simon.fraser@apple.com&gt;

+

+        Get position:fixed working slightly better on iOS

+        https://bugs.webkit.org/show_bug.cgi?id=129714

+

+        Reviewed by Benjamin Poulain.

+

+        Send the scroll position as a FloatPoint, rather than an IntPoint.

+

+        * WebCore.exp.in:

+        * page/scrolling/ScrollingTree.cpp:

+        (WebCore::ScrollingTree::scrollPositionChangedViaDelegatedScrolling):

+        * page/scrolling/ScrollingTree.h:

+

</ins><span class="cx"> 2014-03-04  Alex Christensen  &lt;achristensen@webkit.org&gt;

</span><span class="cx"> 

<span class="cx">         Fixed Windows build without MEDIA_CONTROLS_SCRIPT enabled.

</span></span></pre></div>

<a id="trunkSourceWebCoreWebCoreexpin"></a>

<div class="modfile"><h4>Modified: trunk/Source/WebCore/WebCore.exp.in (165085 => 165086)</h4>

<pre class="diff"><span>

<span class="info">--- trunk/Source/WebCore/WebCore.exp.in        2014-03-05 01:03:55 UTC (rev 165085)

+++ trunk/Source/WebCore/WebCore.exp.in        2014-03-05 01:24:05 UTC (rev 165086)

</span><span class="lines">@@ -2705,7 +2705,7 @@

</span><span class="cx"> __ZN7WebCore13ScrollingTree32isPointInNonFastScrollableRegionENS_8IntPointE

</span><span class="cx"> __ZN7WebCore13ScrollingTree35shouldHandleWheelEventSynchronouslyERKNS_18PlatformWheelEventE

</span><span class="cx"> __ZN7WebCore13ScrollingTree37setScrollingPerformanceLoggingEnabledEb

</span><del>-__ZN7WebCore13ScrollingTree42scrollPositionChangedViaDelegatedScrollingEyRKNS_8IntPointE

</del><ins>+__ZN7WebCore13ScrollingTree42scrollPositionChangedViaDelegatedScrollingEyRKNS_10FloatPointE

</ins><span class="cx"> __ZN7WebCore13ScrollingTreeC2Ev

</span><span class="cx"> __ZN7WebCore13ScrollingTreeD1Ev

</span><span class="cx"> __ZN7WebCore13ScrollingTreeD2Ev

</span></span></pre></div>

<a id="trunkSourceWebCorepagescrollingScrollingTreecpp"></a>

<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/scrolling/ScrollingTree.cpp (165085 => 165086)</h4>

<pre class="diff"><span>

<span class="info">--- trunk/Source/WebCore/page/scrolling/ScrollingTree.cpp        2014-03-05 01:03:55 UTC (rev 165085)

+++ trunk/Source/WebCore/page/scrolling/ScrollingTree.cpp        2014-03-05 01:24:05 UTC (rev 165086)

</span><span class="lines">@@ -98,7 +98,7 @@

</span><span class="cx">         m_rootNode-&gt;handleWheelEvent(wheelEvent);

</span><span class="cx"> }

</span><span class="cx"> 

</span><del>-void ScrollingTree::scrollPositionChangedViaDelegatedScrolling(ScrollingNodeID nodeID, const IntPoint&amp; scrollPosition)

</del><ins>+void ScrollingTree::scrollPositionChangedViaDelegatedScrolling(ScrollingNodeID nodeID, const FloatPoint&amp; scrollPosition)

</ins><span class="cx"> {

</span><span class="cx">     ScrollingTreeNode* node = nodeForID(nodeID);

</span><span class="cx">     if (!node)

</span></span></pre></div>

<a id="trunkSourceWebCorepagescrollingScrollingTreeh"></a>

<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/scrolling/ScrollingTree.h (165085 => 165086)</h4>

<pre class="diff"><span>

<span class="info">--- trunk/Source/WebCore/page/scrolling/ScrollingTree.h        2014-03-05 01:03:55 UTC (rev 165085)

+++ trunk/Source/WebCore/page/scrolling/ScrollingTree.h        2014-03-05 01:24:05 UTC (rev 165086)

</span><span class="lines">@@ -63,7 +63,7 @@

</span><span class="cx">     virtual EventResult tryToHandleWheelEvent(const PlatformWheelEvent&amp;) = 0;

</span><span class="cx">     bool shouldHandleWheelEventSynchronously(const PlatformWheelEvent&amp;);

</span><span class="cx">     

</span><del>-    virtual void scrollPositionChangedViaDelegatedScrolling(ScrollingNodeID, const IntPoint&amp;);

</del><ins>+    virtual void scrollPositionChangedViaDelegatedScrolling(ScrollingNodeID, const FloatPoint&amp;);

</ins><span class="cx"> 

</span><span class="cx">     void setMainFrameIsRubberBanding(bool);

</span><span class="cx">     bool isRubberBandInProgress();

</span></span></pre></div>

<a id="trunkSourceWebKit2ChangeLog"></a>

<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (165085 => 165086)</h4>

<pre class="diff"><span>

<span class="info">--- trunk/Source/WebKit2/ChangeLog        2014-03-05 01:03:55 UTC (rev 165085)

+++ trunk/Source/WebKit2/ChangeLog        2014-03-05 01:24:05 UTC (rev 165086)

</span><span class="lines">@@ -1,3 +1,28 @@

</span><ins>+2014-03-04  Simon Fraser  &lt;simon.fraser@apple.com&gt;

+

+        Get position:fixed working slightly better on iOS WK2

+        https://bugs.webkit.org/show_bug.cgi?id=129714

+

+        Reviewed by Benjamin Poulain.

+        

+        Start telling the RemoteScrollingCoordinatorProxy about scroll position changes

+        again, so it can update fixed and sticky layers.

+        

+        Send the scroll position as a FloatPoint, rather than an IntPoint.

+

+        * UIProcess/Scrolling/RemoteScrollingCoordinatorProxy.cpp:

+        (WebKit::RemoteScrollingCoordinatorProxy::scrollPositionChangedViaDelegatedScrolling):

+        (WebKit::RemoteScrollingCoordinatorProxy::scrollPositionChanged):

+        * UIProcess/Scrolling/RemoteScrollingCoordinatorProxy.h:

+        * UIProcess/WebPageProxy.h:

+        * UIProcess/ios/WKContentView.mm:

+        (-[WKContentView didUpdateVisibleRect:unobscuredRect:scale:inStableState:]):

+        Tell the RemoteScrollingCoordinatorProxy about the scroll update.

+        Only update the customFixedPositionRect if we've finished scrolling or zooming.

+        * UIProcess/ios/WebPageProxyIOS.mm:

+        (WebKit::WebPageProxy::updateVisibleContentRects): Return a bool indicating

+        whether the visible rects changed.

+

</ins><span class="cx"> 2014-03-04  Conrad Shultz  &lt;conrad_shultz@apple.com&gt;

</span><span class="cx"> 

</span><span class="cx">         WKPage's pageExtendedBackgroundColor API exposed through WKView/WKWebView should support NSColor

</span></span></pre></div>

<a id="trunkSourceWebKit2UIProcessScrollingRemoteScrollingCoordinatorProxycpp"></a>

<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/Scrolling/RemoteScrollingCoordinatorProxy.cpp (165085 => 165086)</h4>

<pre class="diff"><span>

<span class="info">--- trunk/Source/WebKit2/UIProcess/Scrolling/RemoteScrollingCoordinatorProxy.cpp        2014-03-05 01:03:55 UTC (rev 165085)

+++ trunk/Source/WebKit2/UIProcess/Scrolling/RemoteScrollingCoordinatorProxy.cpp        2014-03-05 01:24:05 UTC (rev 165086)

</span><span class="lines">@@ -138,7 +138,7 @@

</span><span class="cx">     return m_scrollingTree-&gt;isPointInNonFastScrollableRegion(p);

</span><span class="cx"> }

</span><span class="cx"> 

</span><del>-void RemoteScrollingCoordinatorProxy::scrollPositionChangedViaDelegatedScrolling(ScrollingNodeID nodeID, const IntPoint&amp; offset)

</del><ins>+void RemoteScrollingCoordinatorProxy::scrollPositionChangedViaDelegatedScrolling(ScrollingNodeID nodeID, const FloatPoint&amp; offset)

</ins><span class="cx"> {

</span><span class="cx">     m_scrollingTree-&gt;scrollPositionChangedViaDelegatedScrolling(nodeID, offset);

</span><span class="cx"> }

</span><span class="lines">@@ -146,6 +146,11 @@

<span class="cx"> // This comes from the scrolling tree.

</span><span class="cx"> void RemoteScrollingCoordinatorProxy::scrollPositionChanged(WebCore::ScrollingNodeID scrolledNodeID, const WebCore::FloatPoint&amp; newScrollPosition)

</span><span class="cx"> {

</span><ins>+    // Scroll updates for the main frame are sent via WebPageProxy::updateVisibleContentRects()

+    // so don't send them here.

+    if (scrolledNodeID == rootScrollingNodeID())

+        return;

+

</ins><span class="cx">     m_webPageProxy.send(Messages::RemoteScrollingCoordinator::ScrollPositionChangedForNode(scrolledNodeID, newScrollPosition));

</span><span class="cx"> }

</span><span class="cx"> 

</span></span></pre></div>

<a id="trunkSourceWebKit2UIProcessScrollingRemoteScrollingCoordinatorProxyh"></a>

<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/Scrolling/RemoteScrollingCoordinatorProxy.h (165085 => 165086)</h4>

<pre class="diff"><span>

<span class="info">--- trunk/Source/WebKit2/UIProcess/Scrolling/RemoteScrollingCoordinatorProxy.h        2014-03-05 01:03:55 UTC (rev 165085)

+++ trunk/Source/WebKit2/UIProcess/Scrolling/RemoteScrollingCoordinatorProxy.h        2014-03-05 01:24:05 UTC (rev 165086)

</span><span class="lines">@@ -57,7 +57,7 @@

</span><span class="cx">     bool isPointInNonFastScrollableRegion(const WebCore::IntPoint&amp;) const;

</span><span class="cx"> 

<span class="cx">     // Called externally when native views move around.

</span><del>-    void scrollPositionChangedViaDelegatedScrolling(WebCore::ScrollingNodeID, const WebCore::IntPoint&amp;);

</del><ins>+    void scrollPositionChangedViaDelegatedScrolling(WebCore::ScrollingNodeID, const WebCore::FloatPoint&amp;);

</ins><span class="cx"> 

<span class="cx">     // FIXME: expose the tree and pass this to that?

</span><span class="cx">     bool handleWheelEvent(const WebCore::PlatformWheelEvent&amp;);

</span></span></pre></div>

<a id="trunkSourceWebKit2UIProcessWebPageProxyh"></a>

<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/WebPageProxy.h (165085 => 165086)</h4>

<pre class="diff"><span>

<span class="info">--- trunk/Source/WebKit2/UIProcess/WebPageProxy.h        2014-03-05 01:03:55 UTC (rev 165085)

+++ trunk/Source/WebKit2/UIProcess/WebPageProxy.h        2014-03-05 01:24:05 UTC (rev 165086)

</span><span class="lines">@@ -458,7 +458,7 @@

</span><span class="cx">     const WebCore::FloatRect&amp; exposedContentRect() const { return m_lastVisibleContentRectUpdate.exposedRect(); }

</span><span class="cx">     const WebCore::FloatRect&amp; unobscuredContentRect() const { return m_lastVisibleContentRectUpdate.unobscuredRect(); }

</span><span class="cx"> 

</span><del>-    void updateVisibleContentRects(const VisibleContentRectUpdateInfo&amp;);

</del><ins>+    bool updateVisibleContentRects(const VisibleContentRectUpdateInfo&amp;);

</ins><span class="cx">     void setViewportConfigurationMinimumLayoutSize(const WebCore::IntSize&amp;);

</span><span class="cx">     void didCommitLayerTree(const WebKit::RemoteLayerTreeTransaction&amp;);

</span><span class="cx"> 

</span></span></pre></div>

<a id="trunkSourceWebKit2UIProcessiosWKContentViewmm"></a>

<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/ios/WKContentView.mm (165085 => 165086)</h4>

<pre class="diff"><span>

<span class="info">--- trunk/Source/WebKit2/UIProcess/ios/WKContentView.mm        2014-03-05 01:03:55 UTC (rev 165085)

+++ trunk/Source/WebKit2/UIProcess/ios/WKContentView.mm        2014-03-05 01:24:05 UTC (rev 165086)

</span><span class="lines">@@ -171,11 +171,17 @@

<span class="cx">         // visual noise. We filter those useless updates.

</span><span class="cx">         scale = _page-&gt;displayedContentScale();

</span><span class="cx">     }

</span><ins>+    

</ins><span class="cx">     _page-&gt;updateVisibleContentRects(VisibleContentRectUpdateInfo(visibleRect, unobscuredRect, scale));

</span><span class="cx"> 

</span><ins>+    RemoteScrollingCoordinatorProxy* scrollingCoordinator = _page-&gt;scrollingCoordinatorProxy();

+    scrollingCoordinator-&gt;scrollPositionChangedViaDelegatedScrolling(scrollingCoordinator-&gt;rootScrollingNodeID(), unobscuredRect.origin);

+

</ins><span class="cx">     if (auto drawingArea = _page-&gt;drawingArea()) {

</span><del>-        FloatRect fixedPosRect = [self fixedPositionRectFromExposedRect:unobscuredRect scale:scale];

-        drawingArea-&gt;setCustomFixedPositionRect(fixedPosRect);

</del><ins>+        if (isStableState) {

+            FloatRect fixedPosRect = [self fixedPositionRectFromExposedRect:unobscuredRect scale:scale];

+            drawingArea-&gt;setCustomFixedPositionRect(fixedPosRect);

+        }

</ins><span class="cx">         drawingArea-&gt;updateDebugIndicator();

</span><span class="cx">     }

</span><span class="cx"> }

</span></span></pre></div>

<a id="trunkSourceWebKit2UIProcessiosWebPageProxyIOSmm"></a>

<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/ios/WebPageProxyIOS.mm (165085 => 165086)</h4>

<pre class="diff"><span>

<span class="info">--- trunk/Source/WebKit2/UIProcess/ios/WebPageProxyIOS.mm        2014-03-05 01:03:55 UTC (rev 165085)

+++ trunk/Source/WebKit2/UIProcess/ios/WebPageProxyIOS.mm        2014-03-05 01:24:05 UTC (rev 165086)

</span><span class="lines">@@ -234,12 +234,14 @@

</span><span class="cx">     callback-&gt;performCallbackWithReturnValue(beforeText, markedText, selectedText, afterText, location, length);

</span><span class="cx"> }

</span><span class="cx"> 

</span><del>-void WebPageProxy::updateVisibleContentRects(const VisibleContentRectUpdateInfo&amp; visibleContentRectUpdateInfo)

</del><ins>+bool WebPageProxy::updateVisibleContentRects(const VisibleContentRectUpdateInfo&amp; visibleContentRectUpdateInfo)

</ins><span class="cx"> {

</span><span class="cx">     if (visibleContentRectUpdateInfo == m_lastVisibleContentRectUpdate)

</span><del>-        return;

</del><ins>+        return false;

+

</ins><span class="cx">     m_lastVisibleContentRectUpdate = visibleContentRectUpdateInfo;

</span><span class="cx">     m_process-&gt;send(Messages::ViewUpdateDispatcher::VisibleContentRectUpdate(m_pageID, visibleContentRectUpdateInfo), 0);

</span><ins>+    return true;

</ins><span class="cx"> }

</span><span class="cx"> 

</span><span class="cx"> void WebPageProxy::setViewportConfigurationMinimumLayoutSize(const WebCore::IntSize&amp; size)

</span></span></pre>

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