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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_HTML_VIEWER_WEB_THREAD_IMPL_H_
#define COMPONENTS_HTML_VIEWER_WEB_THREAD_IMPL_H_
#include <map>
#include "base/memory/scoped_ptr.h"
#include "base/threading/thread.h"
#include "components/html_viewer/web_scheduler_impl.h"
#include "third_party/WebKit/public/platform/WebThread.h"
namespace html_viewer {
class WebThreadBase : public blink::WebThread {
public:
virtual ~WebThreadBase();
virtual void addTaskObserver(TaskObserver* observer);
virtual void removeTaskObserver(TaskObserver* observer);
virtual bool isCurrentThread() const = 0;
protected:
WebThreadBase();
private:
class TaskObserverAdapter;
typedef std::map<TaskObserver*, TaskObserverAdapter*> TaskObserverMap;
TaskObserverMap task_observer_map_;
};
class WebThreadImpl : public WebThreadBase {
public:
explicit WebThreadImpl(const char* name);
~WebThreadImpl() override;
virtual void postTask(const blink::WebTraceLocation& location, Task* task);
virtual void postDelayedTask(const blink::WebTraceLocation& location,
Task* task,
long long delay_ms);
virtual void enterRunLoop();
virtual void exitRunLoop();
virtual blink::WebScheduler* scheduler() const;
base::MessageLoop* message_loop() const { return thread_->message_loop(); }
bool isCurrentThread() const override;
virtual blink::PlatformThreadId threadId() const;
private:
scoped_ptr<base::Thread> thread_;
scoped_ptr<WebSchedulerImpl> web_scheduler_;
};
class WebThreadImplForMessageLoop : public WebThreadBase {
public:
explicit WebThreadImplForMessageLoop(
base::MessageLoopProxy* message_loop);
~WebThreadImplForMessageLoop() override;
virtual void postTask(const blink::WebTraceLocation& location, Task* task);
virtual void postDelayedTask(const blink::WebTraceLocation& location,
Task* task,
long long delay_ms);
virtual void enterRunLoop();
virtual void exitRunLoop();
virtual blink::WebScheduler* scheduler() const;
private:
bool isCurrentThread() const override;
virtual blink::PlatformThreadId threadId() const;
scoped_refptr<base::MessageLoopProxy> message_loop_;
scoped_ptr<WebSchedulerImpl> web_scheduler_;
blink::PlatformThreadId thread_id_;
};
} // namespace html_viewer
#endif // COMPONENTS_HTML_VIEWER_WEB_THREAD_IMPL_H_
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