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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/186152">186152</a></dd>
<dt>Author</dt> <dd>akling@apple.com</dd>
<dt>Date</dt> <dd>2015-06-30 17:39:22 -0700 (Tue, 30 Jun 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>[iOS] Ignore viewport rect changes during zoom bouncing.
<https://webkit.org/b/146480>
Reviewed by Benjamin Poulain.
When the user has pinch-zoomed past the maximum zoom scale and lets go of the screen,
we animate a bounce back to the maximum scale.
Suppress viewport rect updates during this bounce animation since we don't need them
anyway. This fixes an issue where we'd sometimes get a weird rect during the animation
and if could send that to the web process, causing it to generate tiles for a part of
the page that's not actually exposed.
* UIProcess/API/Cocoa/WKWebView.mm:
(-[WKWebView _updateVisibleContentRects]):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICocoaWKWebViewmm">trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.mm</a></li>
</ul>
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<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (186151 => 186152)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog 2015-07-01 00:36:18 UTC (rev 186151)
+++ trunk/Source/WebKit2/ChangeLog 2015-07-01 00:39:22 UTC (rev 186152)
</span><span class="lines">@@ -1,3 +1,21 @@
</span><ins>+2015-06-30 Andreas Kling <akling@apple.com>
+
+ [iOS] Ignore viewport rect changes during zoom bouncing.
+ <https://webkit.org/b/146480>
+
+ Reviewed by Benjamin Poulain.
+
+ When the user has pinch-zoomed past the maximum zoom scale and lets go of the screen,
+ we animate a bounce back to the maximum scale.
+
+ Suppress viewport rect updates during this bounce animation since we don't need them
+ anyway. This fixes an issue where we'd sometimes get a weird rect during the animation
+ and if could send that to the web process, causing it to generate tiles for a part of
+ the page that's not actually exposed.
+
+ * UIProcess/API/Cocoa/WKWebView.mm:
+ (-[WKWebView _updateVisibleContentRects]):
+
</ins><span class="cx"> 2015-06-30 Enrica Casucci <enrica@apple.com>
</span><span class="cx">
</span><span class="cx"> <rdar://problem/20655729> WebKit should heuristically exclude scrolling touch events from the user gesture category
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICocoaWKWebViewmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.mm (186151 => 186152)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.mm 2015-07-01 00:36:18 UTC (rev 186151)
+++ trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.mm 2015-07-01 00:39:22 UTC (rev 186152)
</span><span class="lines">@@ -1583,6 +1583,9 @@
</span><span class="cx"> if (_needsResetViewStateAfterCommitLoadForMainFrame)
</span><span class="cx"> return;
</span><span class="cx">
</span><ins>+ if ([_scrollView isZoomBouncing])
+ return;
+
</ins><span class="cx"> CGRect fullViewRect = self.bounds;
</span><span class="cx"> CGRect visibleRectInContentCoordinates = _frozenVisibleContentRect ? _frozenVisibleContentRect.value() : [self convertRect:fullViewRect toView:_contentView.get()];
</span><span class="cx">
</span><span class="lines">@@ -1591,7 +1594,7 @@
</span><span class="cx">
</span><span class="cx"> CGFloat scaleFactor = contentZoomScale(self);
</span><span class="cx">
</span><del>- BOOL isStableState = !(_isChangingObscuredInsetsInteractively || [_scrollView isDragging] || [_scrollView isDecelerating] || [_scrollView isZooming] || [_scrollView isZoomBouncing] || [_scrollView _isAnimatingZoom] || [_scrollView _isScrollingToTop] || [self _scrollViewIsRubberBanding]);
</del><ins>+ BOOL isStableState = !(_isChangingObscuredInsetsInteractively || [_scrollView isDragging] || [_scrollView isDecelerating] || [_scrollView isZooming] || [_scrollView _isAnimatingZoom] || [_scrollView _isScrollingToTop] || [self _scrollViewIsRubberBanding]);
</ins><span class="cx">
</span><span class="cx"> // FIXME: this can be made static after we stop supporting iOS 8.x.
</span><span class="cx"> if (isStableState && [_scrollView respondsToSelector:@selector(_isInterruptingDeceleration)])
</span></span></pre>
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