Fixes a bug where the Inspector's UI would not animate or

        fully function because JavaScript timeouts, intervals and
        CSS animation timers where not firing while paused at a
        a breakpoint in the inspected page.

        https://bugs.webkit.org/show_bug.cgi?id=20042

        Reviewed by Darin Adler.

        Test: manual-tests/inspector/forzen-ui-while-paused.html

        * page/JavaScriptDebugServer.cpp:
        (WebCore::JavaScriptDebugServer::pauseIfNeeded):
        Add a call to TimerBase::fireTimersInNestedEventLoop before
        spinning the EventLoop.

Canonical link: https://commits.webkit.org/28313@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@35908 268f45cc-cd09-0410-ab3c-d52691b4dbfc

WebCore/ChangeLog

@@ -1,3 +1,21 @@
+2008-08-24  Timothy Hatcher  <timothy@apple.com>
+
+        Fixes a bug where the Inspector's UI would not animate or
+        fully function because JavaScript timeouts, intervals and
+        CSS animation timers where not firing while paused at a
+        a breakpoint in the inspected page.
+
+        https://bugs.webkit.org/show_bug.cgi?id=20042
+
+        Reviewed by Darin Adler.
+
+        Test: manual-tests/inspector/forzen-ui-while-paused.html
+
+        * page/JavaScriptDebugServer.cpp:
+        (WebCore::JavaScriptDebugServer::pauseIfNeeded):
+        Add a call to TimerBase::fireTimersInNestedEventLoop before
+        spinning the EventLoop.
+
 2008-08-24  Rob Buis  <buis@kde.org>
 
         Reviewed by Sam Weinig.

WebCore/manual-tests/inspector/forzen-ui-while-paused.html

@@ -0,0 +1,11 @@
+<script>
+function foo() {
+    var timeout = setTimeout(function() { alert("This should not happen. If you do see this alert, then timers on the page are firing while paused!") }, 0);
+    debugger;
+    clearTimeout(timeout);
+}
+
+setTimeout(foo, 100);
+</script>
+<p>Test for <a href="https://bugs.webkit.org/show_bug.cgi?id=20042">Bug 20042: UI frozen when the debugger is paused</a>.</p>
+<p>Open the inspector and start debugging in the Scripts panel. While paused, try to open the Console. The Console should animate open fully.</p>

WebCore/page/JavaScriptDebugServer.cpp

@@ -406,6 +406,8 @@ void JavaScriptDebugServer::pauseIfNeeded(Page* page)
 
     setJavaScriptPaused(page->group(), true);
 
+    TimerBase::fireTimersInNestedEventLoop();
+
     EventLoop loop;
     m_doneProcessingDebuggerEvents = false;
     while (!m_doneProcessingDebuggerEvents && !loop.ended())