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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/245080">245080</a></dd>
<dt>Author</dt> <dd>achristensen@apple.com</dd>
<dt>Date</dt> <dd>2019-05-08 17:03:00 -0700 (Wed, 08 May 2019)</dd>
</dl>
<h3>Log Message</h3>
<pre>Don't crash when DOMNode.addEventListener:listener:useCapture: is called with a nil listener
https://bugs.webkit.org/show_bug.cgi?id=197712
<rdar://problem/50429770>
Reviewed by Tim Horton.
Source/WebKitLegacy/mac:
* DOM/ObjCEventListener.h:
* DOM/ObjCEventListener.mm:
(WebCore::ObjCEventListener::wrap):
Tools:
* TestWebKitAPI/Tests/WebKitLegacy/mac/DeallocWebViewInEventListener.mm:
(TestWebKitAPI::TEST):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebKitLegacymacChangeLog">trunk/Source/WebKitLegacy/mac/ChangeLog</a></li>
<li><a href="#trunkSourceWebKitLegacymacDOMObjCEventListenerh">trunk/Source/WebKitLegacy/mac/DOM/ObjCEventListener.h</a></li>
<li><a href="#trunkSourceWebKitLegacymacDOMObjCEventListenermm">trunk/Source/WebKitLegacy/mac/DOM/ObjCEventListener.mm</a></li>
<li><a href="#trunkToolsChangeLog">trunk/Tools/ChangeLog</a></li>
<li><a href="#trunkToolsTestWebKitAPITestsWebKitLegacymacDeallocWebViewInEventListenermm">trunk/Tools/TestWebKitAPI/Tests/WebKitLegacy/mac/DeallocWebViewInEventListener.mm</a></li>
</ul>
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<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebKitLegacymacChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKitLegacy/mac/ChangeLog (245079 => 245080)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKitLegacy/mac/ChangeLog 2019-05-08 23:46:03 UTC (rev 245079)
+++ trunk/Source/WebKitLegacy/mac/ChangeLog 2019-05-09 00:03:00 UTC (rev 245080)
</span><span class="lines">@@ -1,3 +1,15 @@
</span><ins>+2019-05-08 Alex Christensen <achristensen@webkit.org>
+
+ Don't crash when DOMNode.addEventListener:listener:useCapture: is called with a nil listener
+ https://bugs.webkit.org/show_bug.cgi?id=197712
+ <rdar://problem/50429770>
+
+ Reviewed by Tim Horton.
+
+ * DOM/ObjCEventListener.h:
+ * DOM/ObjCEventListener.mm:
+ (WebCore::ObjCEventListener::wrap):
+
</ins><span class="cx"> 2019-05-08 Daniel Bates <dabates@apple.com>
</span><span class="cx">
</span><span class="cx"> [Legacy WebKit] REGRESSION (r238078): Crash in hardwareKeyboardAvailabilityChangedCallback()
</span></span></pre></div>
<a id="trunkSourceWebKitLegacymacDOMObjCEventListenerh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKitLegacy/mac/DOM/ObjCEventListener.h (245079 => 245080)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKitLegacy/mac/DOM/ObjCEventListener.h 2019-05-08 23:46:03 UTC (rev 245079)
+++ trunk/Source/WebKitLegacy/mac/DOM/ObjCEventListener.h 2019-05-09 00:03:00 UTC (rev 245080)
</span><span class="lines">@@ -37,7 +37,7 @@
</span><span class="cx"> class ObjCEventListener : public EventListener {
</span><span class="cx"> public:
</span><span class="cx"> typedef id<DOMEventListener> ObjCListener;
</span><del>- static Ref<ObjCEventListener> wrap(ObjCListener);
</del><ins>+ static RefPtr<ObjCEventListener> wrap(ObjCListener);
</ins><span class="cx">
</span><span class="cx"> static const ObjCEventListener* cast(const EventListener* listener)
</span><span class="cx"> {
</span></span></pre></div>
<a id="trunkSourceWebKitLegacymacDOMObjCEventListenermm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKitLegacy/mac/DOM/ObjCEventListener.mm (245079 => 245080)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKitLegacy/mac/DOM/ObjCEventListener.mm 2019-05-08 23:46:03 UTC (rev 245079)
+++ trunk/Source/WebKitLegacy/mac/DOM/ObjCEventListener.mm 2019-05-09 00:03:00 UTC (rev 245080)
</span><span class="lines">@@ -47,12 +47,13 @@
</span><span class="cx"> return map->get(listener);
</span><span class="cx"> }
</span><span class="cx">
</span><del>-Ref<ObjCEventListener> ObjCEventListener::wrap(ObjCListener listener)
</del><ins>+RefPtr<ObjCEventListener> ObjCEventListener::wrap(ObjCListener listener)
</ins><span class="cx"> {
</span><del>- RefPtr<ObjCEventListener> wrapper = find(listener);
- if (wrapper)
- return wrapper.releaseNonNull();
- return adoptRef(*new ObjCEventListener(listener));
</del><ins>+ if (!listener)
+ return nullptr;
+ if (RefPtr<ObjCEventListener> wrapper = find(listener))
+ return wrapper;
+ return adoptRef(new ObjCEventListener(listener));
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> ObjCEventListener::ObjCEventListener(ObjCListener listener)
</span></span></pre></div>
<a id="trunkToolsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Tools/ChangeLog (245079 => 245080)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Tools/ChangeLog 2019-05-08 23:46:03 UTC (rev 245079)
+++ trunk/Tools/ChangeLog 2019-05-09 00:03:00 UTC (rev 245080)
</span><span class="lines">@@ -1,3 +1,14 @@
</span><ins>+2019-05-08 Alex Christensen <achristensen@webkit.org>
+
+ Don't crash when DOMNode.addEventListener:listener:useCapture: is called with a nil listener
+ https://bugs.webkit.org/show_bug.cgi?id=197712
+ <rdar://problem/50429770>
+
+ Reviewed by Tim Horton.
+
+ * TestWebKitAPI/Tests/WebKitLegacy/mac/DeallocWebViewInEventListener.mm:
+ (TestWebKitAPI::TEST):
+
</ins><span class="cx"> 2019-05-08 Jonathan Bedard <jbedard@apple.com>
</span><span class="cx">
</span><span class="cx"> Change my status to be a WebKit reviewer.
</span></span></pre></div>
<a id="trunkToolsTestWebKitAPITestsWebKitLegacymacDeallocWebViewInEventListenermm"></a>
<div class="modfile"><h4>Modified: trunk/Tools/TestWebKitAPI/Tests/WebKitLegacy/mac/DeallocWebViewInEventListener.mm (245079 => 245080)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Tools/TestWebKitAPI/Tests/WebKitLegacy/mac/DeallocWebViewInEventListener.mm 2019-05-08 23:46:03 UTC (rev 245079)
+++ trunk/Tools/TestWebKitAPI/Tests/WebKitLegacy/mac/DeallocWebViewInEventListener.mm 2019-05-09 00:03:00 UTC (rev 245080)
</span><span class="lines">@@ -81,6 +81,7 @@
</span><span class="cx">
</span><span class="cx"> auto listener = adoptNS([[DeallocWebViewInEventListener alloc] init]);
</span><span class="cx"> [[[webView mainFrameDocument] body] addEventListener:@"keypress" listener:listener.get() useCapture:NO];
</span><ins>+ [[[webView mainFrameDocument] body] addEventListener:@"keypress" listener:nullptr useCapture:NO];
</ins><span class="cx"> listener = nullptr;
</span><span class="cx"> [webView close];
</span><span class="cx"> [pool drain];
</span></span></pre>
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