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/*
* Copyright (C) 2009 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.
*/
#ifndef WorkerLoaderProxy_h
#define WorkerLoaderProxy_h
#include "ScriptExecutionContext.h"
#include <wtf/Forward.h>
#include <wtf/PassOwnPtr.h>
namespace WebCore {
// A proxy to talk to the loader context. Normally, the document on the main thread
// provides loading services for the subordinate workers. This interface provides 2-way
// communications to the Document context and back to the worker.
// Note that in multi-process browsers, the Worker object context and the Document
// context can be distinct.
class WorkerLoaderProxy {
public:
virtual ~WorkerLoaderProxy() { }
// Posts a task to the thread which runs the loading code (normally, the main thread).
virtual void postTaskToLoader(PassOwnPtr<ScriptExecutionContext::Task>) = 0;
// Posts callbacks from loading code to the WorkerGlobalScope. The 'mode' is used to differentiate
// specific synchronous loading requests so they can be 'nested', per spec.
// Returns true if the task was posted successfully.
virtual bool postTaskForModeToWorkerGlobalScope(PassOwnPtr<ScriptExecutionContext::Task>, const String& mode) = 0;
};
} // namespace WebCore
#endif // WorkerLoaderProxy_h
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