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<title>[201583] trunk/Source/WebKit2</title>
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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/201583">201583</a></dd>
<dt>Author</dt> <dd>cdumez@apple.com</dd>
<dt>Date</dt> <dd>2016-06-01 18:09:55 -0700 (Wed, 01 Jun 2016)</dd>
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<h3>Log Message</h3>
<pre>[iOS] Regression(<a href="http://trac.webkit.org/projects/webkit/changeset/200972">r200972</a>): Crash under WebKit::WebPage::selectTextWithGranularityAtPoint()
https://bugs.webkit.org/show_bug.cgi?id=158284
<rdar://problem/26573954>
Reviewed by Ryosuke Niwa.
range can be null but <a href="http://trac.webkit.org/projects/webkit/changeset/200972">r200972</a> started dereferencing it without null
check. This patch adds a null check for range and uses the pre-<a href="http://trac.webkit.org/projects/webkit/changeset/200972">r200972</a>
code path if range is null.
* WebProcess/WebPage/ios/WebPageIOS.mm:
(WebKit::WebPage::selectTextWithGranularityAtPoint):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2WebProcessWebPageiosWebPageIOSmm">trunk/Source/WebKit2/WebProcess/WebPage/ios/WebPageIOS.mm</a></li>
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<h3>Diff</h3>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (201582 => 201583)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog 2016-06-02 00:45:18 UTC (rev 201582)
+++ trunk/Source/WebKit2/ChangeLog 2016-06-02 01:09:55 UTC (rev 201583)
</span><span class="lines">@@ -1,3 +1,18 @@
</span><ins>+2016-06-01 Chris Dumez <cdumez@apple.com>
+
+ [iOS] Regression(r200972): Crash under WebKit::WebPage::selectTextWithGranularityAtPoint()
+ https://bugs.webkit.org/show_bug.cgi?id=158284
+ <rdar://problem/26573954>
+
+ Reviewed by Ryosuke Niwa.
+
+ range can be null but r200972 started dereferencing it without null
+ check. This patch adds a null check for range and uses the pre-r200972
+ code path if range is null.
+
+ * WebProcess/WebPage/ios/WebPageIOS.mm:
+ (WebKit::WebPage::selectTextWithGranularityAtPoint):
+
</ins><span class="cx"> 2016-06-01 Brady Eidson <beidson@apple.com>
</span><span class="cx">
</span><span class="cx"> Modernize lambda usage for all callers of RunLoop::dispatch().
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessWebPageiosWebPageIOSmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/WebPage/ios/WebPageIOS.mm (201582 => 201583)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/WebPage/ios/WebPageIOS.mm 2016-06-02 00:45:18 UTC (rev 201582)
+++ trunk/Source/WebKit2/WebProcess/WebPage/ios/WebPageIOS.mm 2016-06-02 01:09:55 UTC (rev 201583)
</span><span class="lines">@@ -1875,8 +1875,8 @@
</span><span class="cx"> m_blockSelectionDesiredSize.setWidth(blockSelectionStartWidth);
</span><span class="cx"> m_blockSelectionDesiredSize.setHeight(blockSelectionStartHeight);
</span><span class="cx"> m_currentBlockSelection = nullptr;
</span><del>- auto* renderer = range->startContainer().renderer();
- if (renderer->style().preserveNewline())
</del><ins>+ auto* renderer = range ? range->startContainer().renderer() : nullptr;
+ if (renderer && renderer->style().preserveNewline())
</ins><span class="cx"> m_blockRectForTextSelection = renderer->absoluteBoundingBoxRect(true);
</span><span class="cx"> else {
</span><span class="cx"> auto paragraphRange = enclosingTextUnitOfGranularity(visiblePositionInFocusedNodeForPoint(frame, point, isInteractingWithAssistedNode), ParagraphGranularity, DirectionForward);
</span></span></pre>
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