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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/195253">195253</a></dd>
<dt>Author</dt> <dd>carlosgc@webkit.org</dd>
<dt>Date</dt> <dd>2016-01-19 00:01:14 -0800 (Tue, 19 Jan 2016)</dd>
</dl>

<h3>Log Message</h3>
<pre>Merge <a href="http://trac.webkit.org/projects/webkit/changeset/194890">r194890</a> - [GTK] UI process crashes if webkit_web_view_get_tls_info is called before internal load-committed event
https://bugs.webkit.org/show_bug.cgi?id=142375

Reviewed by Michael Catanzaro.

Remove all the hacks to emit delayed load events now that the
page cache resource load delegates are consistent with all other
resource loads.

* UIProcess/API/gtk/WebKitWebView.cpp:
(webkitWebViewLoadChanged):
(webkitWebViewResourceLoadStarted):
(webkit_web_view_get_tls_info): Add a g_return_val_if_fail to
prevent this function from being misused.
(webkitWebViewDisconnectMainResourceResponseChangedSignalHandler): Deleted.
(webkitWebViewDispose): Deleted.
(webkitWebViewEmitLoadChanged): Deleted.
(webkitWebViewEmitDelayedLoadEvents): Deleted.
(mainResourceResponseChangedCallback): Deleted.
(waitForMainResourceResponseIfWaitingForResource): Deleted.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#releasesWebKitGTKwebkit210SourceWebKit2ChangeLog">releases/WebKitGTK/webkit-2.10/Source/WebKit2/ChangeLog</a></li>
<li><a href="#releasesWebKitGTKwebkit210SourceWebKit2UIProcessAPIgtkWebKitWebViewcpp">releases/WebKitGTK/webkit-2.10/Source/WebKit2/UIProcess/API/gtk/WebKitWebView.cpp</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="releasesWebKitGTKwebkit210SourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.10/Source/WebKit2/ChangeLog (195252 => 195253)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.10/Source/WebKit2/ChangeLog        2016-01-19 07:57:57 UTC (rev 195252)
+++ releases/WebKitGTK/webkit-2.10/Source/WebKit2/ChangeLog        2016-01-19 08:01:14 UTC (rev 195253)
</span><span class="lines">@@ -1,3 +1,26 @@
</span><ins>+2016-01-12  Carlos Garcia Campos  &lt;cgarcia@igalia.com&gt;
+
+        [GTK] UI process crashes if webkit_web_view_get_tls_info is called before internal load-committed event
+        https://bugs.webkit.org/show_bug.cgi?id=142375
+
+        Reviewed by Michael Catanzaro.
+
+        Remove all the hacks to emit delayed load events now that the
+        page cache resource load delegates are consistent with all other
+        resource loads.
+
+        * UIProcess/API/gtk/WebKitWebView.cpp:
+        (webkitWebViewLoadChanged):
+        (webkitWebViewResourceLoadStarted):
+        (webkit_web_view_get_tls_info): Add a g_return_val_if_fail to
+        prevent this function from being misused.
+        (webkitWebViewDisconnectMainResourceResponseChangedSignalHandler): Deleted.
+        (webkitWebViewDispose): Deleted.
+        (webkitWebViewEmitLoadChanged): Deleted.
+        (webkitWebViewEmitDelayedLoadEvents): Deleted.
+        (mainResourceResponseChangedCallback): Deleted.
+        (waitForMainResourceResponseIfWaitingForResource): Deleted.
+
</ins><span class="cx"> 2016-01-11  Mario Sanchez Prada  &lt;mario@endlessm.com&gt;
</span><span class="cx"> 
</span><span class="cx">         [WK2][GTK] Propagate motion-notify-event signals from the WebView
</span></span></pre></div>
<a id="releasesWebKitGTKwebkit210SourceWebKit2UIProcessAPIgtkWebKitWebViewcpp"></a>
<div class="modfile"><h4>Modified: releases/WebKitGTK/webkit-2.10/Source/WebKit2/UIProcess/API/gtk/WebKitWebView.cpp (195252 => 195253)</h4>
<pre class="diff"><span>
<span class="info">--- releases/WebKitGTK/webkit-2.10/Source/WebKit2/UIProcess/API/gtk/WebKitWebView.cpp        2016-01-19 07:57:57 UTC (rev 195252)
+++ releases/WebKitGTK/webkit-2.10/Source/WebKit2/UIProcess/API/gtk/WebKitWebView.cpp        2016-01-19 08:01:14 UTC (rev 195253)
</span><span class="lines">@@ -178,9 +178,6 @@
</span><span class="cx">     bool isLoading;
</span><span class="cx"> 
</span><span class="cx">     std::unique_ptr&lt;PageLoadStateObserver&gt; loadObserver;
</span><del>-    bool waitingForMainResource;
-    unsigned long mainResourceResponseHandlerID;
-    WebKitLoadEvent lastDelayedEvent;
</del><span class="cx"> 
</span><span class="cx">     GRefPtr&lt;WebKitBackForwardList&gt; backForwardList;
</span><span class="cx">     GRefPtr&lt;WebKitSettings&gt; settings;
</span><span class="lines">@@ -249,11 +246,6 @@
</span><span class="cx">     }
</span><span class="cx">     virtual void didChangeIsLoading() override
</span><span class="cx">     {
</span><del>-        if (m_webView-&gt;priv-&gt;waitingForMainResource) {
-            // The actual load has finished but we haven't emitted the delayed load events yet, so we are still loading.
-            g_object_thaw_notify(G_OBJECT(m_webView));
-            return;
-        }
</del><span class="cx">         webkitWebViewSetIsLoading(m_webView, getPage(m_webView)-&gt;pageLoadState().isLoading());
</span><span class="cx">         g_object_thaw_notify(G_OBJECT(m_webView));
</span><span class="cx">     }
</span><span class="lines">@@ -500,14 +492,6 @@
</span><span class="cx">     g_signal_handlers_disconnect_by_func(settings, reinterpret_cast&lt;gpointer&gt;(userAgentChanged), webView);
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-static void webkitWebViewDisconnectMainResourceResponseChangedSignalHandler(WebKitWebView* webView)
-{
-    WebKitWebViewPrivate* priv = webView-&gt;priv;
-    if (priv-&gt;mainResourceResponseHandlerID)
-        g_signal_handler_disconnect(priv-&gt;mainResource.get(), priv-&gt;mainResourceResponseHandlerID);
-    priv-&gt;mainResourceResponseHandlerID = 0;
-}
-
</del><span class="cx"> static void webkitWebViewWatchForChangesInFavicon(WebKitWebView* webView)
</span><span class="cx"> {
</span><span class="cx">     WebKitWebViewPrivate* priv = webView-&gt;priv;
</span><span class="lines">@@ -751,7 +735,6 @@
</span><span class="cx"> {
</span><span class="cx">     WebKitWebView* webView = WEBKIT_WEB_VIEW(object);
</span><span class="cx">     webkitWebViewCancelFaviconRequest(webView);
</span><del>-    webkitWebViewDisconnectMainResourceResponseChangedSignalHandler(webView);
</del><span class="cx">     webkitWebViewDisconnectSettingsSignalHandlers(webView);
</span><span class="cx">     webkitWebViewDisconnectFaviconDatabaseSignalHandlers(webView);
</span><span class="cx"> 
</span><span class="lines">@@ -1766,73 +1749,31 @@
</span><span class="cx">     webView-&gt;priv-&gt;authenticationRequest.clear();
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-static void webkitWebViewEmitLoadChanged(WebKitWebView* webView, WebKitLoadEvent loadEvent, bool isDelayedEvent)
-{
-    if (loadEvent == WEBKIT_LOAD_STARTED) {
-        webkitWebViewWatchForChangesInFavicon(webView);
-        webkitWebViewCancelAuthenticationRequest(webView);
-    } else if (loadEvent == WEBKIT_LOAD_FINISHED) {
-        if (isDelayedEvent) {
-            // In case of the delayed event, we need to manually set is-loading to false.
-            webkitWebViewSetIsLoading(webView, false);
-        }
-        webkitWebViewCancelAuthenticationRequest(webView);
-        webkitWebViewDisconnectMainResourceResponseChangedSignalHandler(webView);
-    }
-
-    g_signal_emit(webView, signals[LOAD_CHANGED], 0, loadEvent);
-
-    if (isDelayedEvent) {
-        if (loadEvent == WEBKIT_LOAD_COMMITTED)
-            webView-&gt;priv-&gt;waitingForMainResource = false;
-        else if (loadEvent == WEBKIT_LOAD_FINISHED) {
-            // Manually set is-loading again in case a new load was started.
-            webkitWebViewSetIsLoading(webView, getPage(webView)-&gt;pageLoadState().isLoading());
-        }
-    }
-}
-
-static void webkitWebViewEmitDelayedLoadEvents(WebKitWebView* webView)
-{
-    WebKitWebViewPrivate* priv = webView-&gt;priv;
-    if (!priv-&gt;waitingForMainResource)
-        return;
-    ASSERT(priv-&gt;lastDelayedEvent == WEBKIT_LOAD_COMMITTED || priv-&gt;lastDelayedEvent == WEBKIT_LOAD_FINISHED);
-
-    if (priv-&gt;lastDelayedEvent == WEBKIT_LOAD_FINISHED)
-        webkitWebViewEmitLoadChanged(webView, WEBKIT_LOAD_COMMITTED, true);
-    webkitWebViewEmitLoadChanged(webView, priv-&gt;lastDelayedEvent, true);
-}
-
</del><span class="cx"> void webkitWebViewLoadChanged(WebKitWebView* webView, WebKitLoadEvent loadEvent)
</span><span class="cx"> {
</span><span class="cx">     WebKitWebViewPrivate* priv = webView-&gt;priv;
</span><del>-    if (loadEvent == WEBKIT_LOAD_STARTED) {
-        // Finish a possible previous load waiting for main resource.
-        webkitWebViewEmitDelayedLoadEvents(webView);
-
</del><ins>+    switch (loadEvent) {
+    case WEBKIT_LOAD_STARTED:
</ins><span class="cx">         webkitWebViewCancelFaviconRequest(webView);
</span><ins>+        webkitWebViewWatchForChangesInFavicon(webView);
+        webkitWebViewCancelAuthenticationRequest(webView);
</ins><span class="cx">         priv-&gt;loadingResourcesMap.clear();
</span><del>-        priv-&gt;mainResource = 0;
-        priv-&gt;waitingForMainResource = false;
-    } else if (loadEvent == WEBKIT_LOAD_COMMITTED) {
</del><ins>+        priv-&gt;mainResource = nullptr;
+        break;
+    case WEBKIT_LOAD_COMMITTED: {
</ins><span class="cx">         WebKitFaviconDatabase* database = webkit_web_context_get_favicon_database(priv-&gt;context.get());
</span><span class="cx">         GUniquePtr&lt;char&gt; faviconURI(webkit_favicon_database_get_favicon_uri(database, priv-&gt;activeURI.data()));
</span><span class="cx">         webkitWebViewUpdateFaviconURI(webView, faviconURI.get());
</span><del>-
-        if (!priv-&gt;mainResource) {
-            // When a page is loaded from the history cache, the main resource load callbacks
-            // are called when the main frame load is finished. We want to make sure there's a
-            // main resource available when load has been committed, so we delay the emission of
-            // load-changed signal until main resource object has been created.
-            priv-&gt;waitingForMainResource = true;
-        }
</del><ins>+        break;
</ins><span class="cx">     }
</span><ins>+    case WEBKIT_LOAD_FINISHED:
+        webkitWebViewCancelAuthenticationRequest(webView);
+        break;
+    default:
+        break;
+    }
</ins><span class="cx"> 
</span><del>-    if (priv-&gt;waitingForMainResource)
-        priv-&gt;lastDelayedEvent = loadEvent;
-    else
-        webkitWebViewEmitLoadChanged(webView, loadEvent, false);
</del><ins>+    g_signal_emit(webView, signals[LOAD_CHANGED], 0, loadEvent);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void webkitWebViewLoadFailed(WebKitWebView* webView, WebKitLoadEvent loadEvent, const char* failingURI, GError *error)
</span><span class="lines">@@ -1962,32 +1903,13 @@
</span><span class="cx">     g_signal_connect(printOperation.leakRef(), &quot;finished&quot;, G_CALLBACK(g_object_unref), 0);
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-static void mainResourceResponseChangedCallback(WebKitWebResource*, GParamSpec*, WebKitWebView* webView)
-{
-    webkitWebViewDisconnectMainResourceResponseChangedSignalHandler(webView);
-    webkitWebViewEmitDelayedLoadEvents(webView);
-}
-
-static void waitForMainResourceResponseIfWaitingForResource(WebKitWebView* webView)
-{
-    WebKitWebViewPrivate* priv = webView-&gt;priv;
-    if (!priv-&gt;waitingForMainResource)
-        return;
-
-    webkitWebViewDisconnectMainResourceResponseChangedSignalHandler(webView);
-    priv-&gt;mainResourceResponseHandlerID =
-        g_signal_connect(priv-&gt;mainResource.get(), &quot;notify::response&quot;, G_CALLBACK(mainResourceResponseChangedCallback), webView);
-}
-
</del><span class="cx"> void webkitWebViewResourceLoadStarted(WebKitWebView* webView, WebFrameProxy* frame, uint64_t resourceIdentifier, WebKitURIRequest* request)
</span><span class="cx"> {
</span><span class="cx">     WebKitWebViewPrivate* priv = webView-&gt;priv;
</span><span class="cx">     bool isMainResource = frame-&gt;isMainFrame() &amp;&amp; !priv-&gt;mainResource;
</span><span class="cx">     WebKitWebResource* resource = webkitWebResourceCreate(frame, request, isMainResource);
</span><del>-    if (isMainResource) {
</del><ins>+    if (isMainResource)
</ins><span class="cx">         priv-&gt;mainResource = resource;
</span><del>-        waitForMainResourceResponseIfWaitingForResource(webView);
-    }
</del><span class="cx">     priv-&gt;loadingResourcesMap.set(resourceIdentifier, adoptGRef(resource));
</span><span class="cx">     g_signal_emit(webView, signals[RESOURCE_LOAD_STARTED], 0, resource, request);
</span><span class="cx"> }
</span><span class="lines">@@ -3463,7 +3385,10 @@
</span><span class="cx">     if (!mainFrame)
</span><span class="cx">         return FALSE;
</span><span class="cx"> 
</span><del>-    const WebCore::CertificateInfo&amp; certificateInfo = mainFrame-&gt;certificateInfo()-&gt;certificateInfo();
</del><ins>+    auto* wkCertificateInfo = mainFrame-&gt;certificateInfo();
+    g_return_val_if_fail(wkCertificateInfo, FALSE);
+
+    const auto&amp; certificateInfo = wkCertificateInfo-&gt;certificateInfo();
</ins><span class="cx">     if (certificate)
</span><span class="cx">         *certificate = certificateInfo.certificate();
</span><span class="cx">     if (errors)
</span></span></pre>
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