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/*
* 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"
#if ENABLE(JAVASCRIPT_DEBUGGER)
#include "PageScriptDebugServer.h"
#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)