Merge WebKit at r82507: Initial merge by git

Change-Id: I60ce9d780725b58b45e54165733a8ffee23b683e

1 files changed, 215 insertions, 0 deletions

diff --git a/Source/WebCore/bindings/js/PageScriptDebugServer.cpp b/Source/WebCore/bindings/js/PageScriptDebugServer.cpp
new file mode 100755
index 0000000..3d9cb9d
--- /dev/null
+++ b/Source/WebCore/bindings/js/PageScriptDebugServer.cpp
@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 2011 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "PageScriptDebugServer.h"
+
+#if ENABLE(JAVASCRIPT_DEBUGGER)
+
+#include "Frame.h"
+#include "FrameView.h"
+#include "JSDOMWindowCustom.h"
+#include "Page.h"
+#include "PageGroup.h"
+#include "PluginView.h"
+#include "ScriptDebugListener.h"
+#include "Widget.h"
+#include <runtime/JSLock.h>
+#include <wtf/MainThread.h>
+#include <wtf/OwnPtr.h>
+#include <wtf/PassOwnPtr.h>
+#include <wtf/StdLibExtras.h>
+
+using namespace JSC;
+
+namespace WebCore {
+
+static Page* toPage(JSGlobalObject* globalObject)
+{
+    ASSERT_ARG(globalObject, globalObject);
+
+    JSDOMWindow* window = asJSDOMWindow(globalObject);
+    Frame* frame = window->impl()->frame();
+    return frame ? frame->page() : 0;
+}
+
+PageScriptDebugServer& PageScriptDebugServer::shared()
+{
+    DEFINE_STATIC_LOCAL(PageScriptDebugServer, server, ());
+    return server;
+}
+
+PageScriptDebugServer::PageScriptDebugServer()
+    : ScriptDebugServer()
+{
+}
+
+PageScriptDebugServer::~PageScriptDebugServer()
+{
+    deleteAllValues(m_pageListenersMap);
+}
+
+void PageScriptDebugServer::addListener(ScriptDebugListener* listener, Page* page)
+{
+    ASSERT_ARG(listener, listener);
+    ASSERT_ARG(page, page);
+
+    pair<PageListenersMap::iterator, bool> result = m_pageListenersMap.add(page, 0);
+    if (result.second)
+        result.first->second = new ListenerSet;
+
+    ListenerSet* listeners = result.first->second;
+    listeners->add(listener);
+
+    recompileAllJSFunctionsSoon();
+    page->setDebugger(this);
+}
+
+void PageScriptDebugServer::removeListener(ScriptDebugListener* listener, Page* page)
+{
+    ASSERT_ARG(listener, listener);
+    ASSERT_ARG(page, page);
+
+    PageListenersMap::iterator it = m_pageListenersMap.find(page);
+    if (it == m_pageListenersMap.end())
+        return;
+
+    ListenerSet* listeners = it->second;
+    listeners->remove(listener);
+    if (listeners->isEmpty()) {
+        m_pageListenersMap.remove(it);
+        delete listeners;
+        didRemoveLastListener(page);
+    }
+}
+
+void PageScriptDebugServer::recompileAllJSFunctions(Timer<ScriptDebugServer>*)
+{
+    JSLock lock(SilenceAssertionsOnly);
+    // If JavaScript stack is not empty postpone recompilation.
+    if (JSDOMWindow::commonJSGlobalData()->dynamicGlobalObject)
+        recompileAllJSFunctionsSoon();
+    else
+        Debugger::recompileAllJSFunctions(JSDOMWindow::commonJSGlobalData());
+}
+
+ScriptDebugServer::ListenerSet* PageScriptDebugServer::getListenersForGlobalObject(JSGlobalObject* globalObject)
+{
+    Page* page = toPage(globalObject);
+    if (!page)
+        return 0;
+    return m_pageListenersMap.get(page);
+}
+
+void PageScriptDebugServer::didPause(JSC::JSGlobalObject* globalObject)
+{
+    Page* page = toPage(globalObject);
+    m_pausedPage = page;
+    setJavaScriptPaused(page->group(), true);
+}
+
+void PageScriptDebugServer::didContinue(JSC::JSGlobalObject* globalObject)
+{
+    Page* page = toPage(globalObject);
+    m_pausedPage = 0;
+    setJavaScriptPaused(page->group(), false);
+}
+
+void PageScriptDebugServer::didRemoveLastListener(Page* page)
+{
+    if (m_pausedPage == page)
+        m_doneProcessingDebuggerEvents = true;
+
+    recompileAllJSFunctionsSoon();
+    page->setDebugger(0);
+}
+
+void PageScriptDebugServer::setJavaScriptPaused(const PageGroup& pageGroup, bool paused)
+{
+    setMainThreadCallbacksPaused(paused);
+
+    const HashSet<Page*>& pages = pageGroup.pages();
+
+    HashSet<Page*>::const_iterator end = pages.end();
+    for (HashSet<Page*>::const_iterator it = pages.begin(); it != end; ++it)
+        setJavaScriptPaused(*it, paused);
+}
+
+void PageScriptDebugServer::setJavaScriptPaused(Page* page, bool paused)
+{
+    ASSERT_ARG(page, page);
+
+    page->setDefersLoading(paused);
+
+    for (Frame* frame = page->mainFrame(); frame; frame = frame->tree()->traverseNext())
+        setJavaScriptPaused(frame, paused);
+}
+
+void PageScriptDebugServer::setJavaScriptPaused(Frame* frame, bool paused)
+{
+    ASSERT_ARG(frame, frame);
+
+    if (!frame->script()->canExecuteScripts(NotAboutToExecuteScript))
+        return;
+
+    frame->script()->setPaused(paused);
+
+    Document* document = frame->document();
+    if (paused) {
+        document->suspendScriptedAnimationControllerCallbacks();
+        document->suspendActiveDOMObjects(ActiveDOMObject::JavaScriptDebuggerPaused);
+    } else {
+        document->resumeActiveDOMObjects();
+        document->resumeScriptedAnimationControllerCallbacks();
+    }
+
+    setJavaScriptPaused(frame->view(), paused);
+}
+
+void PageScriptDebugServer::setJavaScriptPaused(FrameView* view, bool paused)
+{
+    if (!view)
+        return;
+
+    const HashSet<RefPtr<Widget> >* children = view->children();
+    ASSERT(children);
+
+    HashSet<RefPtr<Widget> >::const_iterator end = children->end();
+    for (HashSet<RefPtr<Widget> >::const_iterator it = children->begin(); it != end; ++it) {
+        Widget* widget = (*it).get();
+        if (!widget->isPluginView())
+            continue;
+        static_cast<PluginView*>(widget)->setJavaScriptPaused(paused);
+    }
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(JAVASCRIPT_DEBUGGER)