/*
* 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 "wtf/HashMap.h"
#include "wtf/Noncopyable.h"
#include "wtf/PassOwnPtr.h"
#include "wtf/Vector.h"
namespace WebCore {
class ScriptResource;
class Document;
class PendingScript;
class ScriptLoader;
class ScriptRunner {
WTF_MAKE_NONCOPYABLE(ScriptRunner); WTF_MAKE_FAST_ALLOCATED;
public:
static PassOwnPtr<ScriptRunner> create(Document* document) { return adoptPtr(new ScriptRunner(document)); }
~ScriptRunner();
enum ExecutionType { ASYNC_EXECUTION, IN_ORDER_EXECUTION };
void queueScriptForExecution(ScriptLoader*, ResourcePtr<ScriptResource>, 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);
private:
explicit ScriptRunner(Document*);
void timerFired(Timer<ScriptRunner>*);
Document* m_document;
Vector<PendingScript> m_scriptsToExecuteInOrder;
Vector<PendingScript> m_scriptsToExecuteSoon; // http://www.whatwg.org/specs/web-apps/current-work/#set-of-scripts-that-will-execute-as-soon-as-possible
HashMap<ScriptLoader*, PendingScript> m_pendingAsyncScripts;
Timer<ScriptRunner> m_timer;
};
}
#endif