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/*
* Copyright (C) 2010 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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.
*/
#ifndef ScriptRunner_h
#define ScriptRunner_h
#include "core/fetch/ResourcePtr.h"
#include "platform/Timer.h"
#include "platform/heap/Handle.h"
#include "wtf/HashMap.h"
#include "wtf/Noncopyable.h"
#include "wtf/PassOwnPtr.h"
#include "wtf/Vector.h"
namespace blink {
class Document;
class ScriptLoader;
class ScriptRunner final : public NoBaseWillBeGarbageCollectedFinalized<ScriptRunner> {
WTF_MAKE_NONCOPYABLE(ScriptRunner); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
public:
static PassOwnPtrWillBeRawPtr<ScriptRunner> create(Document* document)
{
return adoptPtrWillBeNoop(new ScriptRunner(document));
}
~ScriptRunner();
enum ExecutionType { ASYNC_EXECUTION, IN_ORDER_EXECUTION };
void queueScriptForExecution(ScriptLoader*, ExecutionType);
bool hasPendingScripts() const { return !m_scriptsToExecuteSoon.isEmpty() || !m_scriptsToExecuteInOrder.isEmpty() || !m_pendingAsyncScripts.isEmpty(); }
void suspend();
void resume();
void notifyScriptReady(ScriptLoader*, ExecutionType);
void notifyScriptLoadError(ScriptLoader*, ExecutionType);
static void movePendingAsyncScript(Document&, Document&, ScriptLoader*);
void trace(Visitor*);
private:
explicit ScriptRunner(Document*);
void timerFired(Timer<ScriptRunner>*);
void addPendingAsyncScript(ScriptLoader*);
void movePendingAsyncScript(ScriptRunner*, ScriptLoader*);
RawPtrWillBeMember<Document> m_document;
WillBeHeapVector<RawPtrWillBeMember<ScriptLoader> > m_scriptsToExecuteInOrder;
// http://www.whatwg.org/specs/web-apps/current-work/#set-of-scripts-that-will-execute-as-soon-as-possible
WillBeHeapVector<RawPtrWillBeMember<ScriptLoader> > m_scriptsToExecuteSoon;
WillBeHeapHashSet<RawPtrWillBeMember<ScriptLoader> > m_pendingAsyncScripts;
Timer<ScriptRunner> m_timer;
};
}
#endif
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