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<title>[196451] tags/Safari-602.1.18.0.4/Source/WebCore</title>
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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/196451">196451</a></dd>
<dt>Author</dt> <dd>bshafiei@apple.com</dd>
<dt>Date</dt> <dd>2016-02-11 15:17:19 -0800 (Thu, 11 Feb 2016)</dd>
</dl>
<h3>Log Message</h3>
<pre>Merged <a href="http://trac.webkit.org/projects/webkit/changeset/196445">r196445</a>. rdar://problem/24511860</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#tagsSafari60211804SourceWebCoreChangeLog">tags/Safari-602.1.18.0.4/Source/WebCore/ChangeLog</a></li>
<li><a href="#tagsSafari60211804SourceWebCoreeditingcocoaDataDetectionmm">tags/Safari-602.1.18.0.4/Source/WebCore/editing/cocoa/DataDetection.mm</a></li>
</ul>
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<div id="patch">
<h3>Diff</h3>
<a id="tagsSafari60211804SourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: tags/Safari-602.1.18.0.4/Source/WebCore/ChangeLog (196450 => 196451)</h4>
<pre class="diff"><span>
<span class="info">--- tags/Safari-602.1.18.0.4/Source/WebCore/ChangeLog        2016-02-11 23:13:29 UTC (rev 196450)
+++ tags/Safari-602.1.18.0.4/Source/WebCore/ChangeLog        2016-02-11 23:17:19 UTC (rev 196451)
</span><span class="lines">@@ -1,3 +1,24 @@
</span><ins>+2016-02-11 Babak Shafiei <bshafiei@apple.com>
+
+ Merge r196445.
+
+ 2016-02-11 Enrica Casucci <enrica@apple.com>
+
+ WebContent process crashes when performing data detection on content with existing data detector links.
+ https://bugs.webkit.org/show_bug.cgi?id=154118
+ rdar://problem/24511860
+
+ Reviewed by Tim Horton.
+
+ The DOM mutation caused by removing the existing links, can shift the range endpoints.
+ We now save the range enpoints as positions so that we can recreate the ranges,
+ if a DOM mutation occurred.
+
+ * editing/cocoa/DataDetection.mm:
+ (WebCore::removeResultLinksFromAnchor):
+ (WebCore::searchForLinkRemovingExistingDDLinks):
+ (WebCore::DataDetection::detectContentInRange):
+
</ins><span class="cx"> 2016-02-09 Babak Shafiei <bshafiei@apple.com>
</span><span class="cx">
</span><span class="cx"> Merge r195975.
</span></span></pre></div>
<a id="tagsSafari60211804SourceWebCoreeditingcocoaDataDetectionmm"></a>
<div class="modfile"><h4>Modified: tags/Safari-602.1.18.0.4/Source/WebCore/editing/cocoa/DataDetection.mm (196450 => 196451)</h4>
<pre class="diff"><span>
<span class="info">--- tags/Safari-602.1.18.0.4/Source/WebCore/editing/cocoa/DataDetection.mm        2016-02-11 23:13:29 UTC (rev 196450)
+++ tags/Safari-602.1.18.0.4/Source/WebCore/editing/cocoa/DataDetection.mm        2016-02-11 23:17:19 UTC (rev 196451)
</span><span class="lines">@@ -240,14 +240,16 @@
</span><span class="cx"> }
</span><span class="cx"> }
</span><span class="cx">
</span><del>-static bool searchForLinkRemovingExistingDDLinks(Node* startNode, Node* endNode)
</del><ins>+static bool searchForLinkRemovingExistingDDLinks(Node* startNode, Node* endNode, bool &didModifyDOM)
</ins><span class="cx"> {
</span><ins>+ didModifyDOM = false;
</ins><span class="cx"> Node *node = startNode;
</span><span class="cx"> while (node) {
</span><span class="cx"> if (is<HTMLAnchorElement>(*node)) {
</span><span class="cx"> if (downcast<Element>(*node).getAttribute(dataDetectorsURLScheme) != "true")
</span><span class="cx"> return true;
</span><span class="cx"> removeResultLinksFromAnchor(node, node->parentElement());
</span><ins>+ didModifyDOM = true;
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> if (node == endNode) {
</span><span class="lines">@@ -259,6 +261,7 @@
</span><span class="cx"> if (downcast<Element>(*node).getAttribute(dataDetectorsURLScheme) != "true")
</span><span class="cx"> return true;
</span><span class="cx"> removeResultLinksFromAnchor(node, node->parentElement());
</span><ins>+ didModifyDOM = true;
</ins><span class="cx"> }
</span><span class="cx"> node = node->parentNode();
</span><span class="cx"> }
</span><span class="lines">@@ -520,10 +523,25 @@
</span><span class="cx">
</span><span class="cx"> NSString *identifier = dataDetectorStringForPath(indexPaths[resultIndex].get());
</span><span class="cx"> NSString *correspondingURL = constructURLStringForResult(coreResult, identifier, referenceDate, (NSTimeZone *)tz, types);
</span><ins>+ bool didModifyDOM = false;
</ins><span class="cx">
</span><del>- if (!correspondingURL || searchForLinkRemovingExistingDDLinks(&resultRanges.first()->startContainer(), &resultRanges.last()->endContainer()))
</del><ins>+ // Store the range boundaries as Position, because the DOM could change if we find
+ // old data detector link.
+ Vector<std::pair<Position, Position>> rangeBoundaries;
+ for (auto& range : resultRanges)
+ rangeBoundaries.append(std::make_pair(range->startPosition(), range->endPosition()));
+
+ if (!correspondingURL || searchForLinkRemovingExistingDDLinks(&resultRanges.first()->startContainer(), &resultRanges.last()->endContainer(), didModifyDOM))
</ins><span class="cx"> continue;
</span><span class="cx">
</span><ins>+ if (didModifyDOM) {
+ // If the DOM was modified because some old links were removed,
+ // we need to recreate the ranges because they could no longer be valid.
+ resultRanges.clear();
+ for (auto& rangeBoundary : rangeBoundaries)
+ resultRanges.append(Range::create(*rangeBoundary.first.document(), rangeBoundary.first, rangeBoundary.second));
+ }
+
</ins><span class="cx"> lastModifiedQueryOffset = queryRange.end;
</span><span class="cx">
</span><span class="cx"> for (auto& range : resultRanges) {
</span></span></pre>
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