mojo/services/html_viewer/webthread_impl.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MOJO_SERVICES_HTML_VIEWER_WEBTHREAD_IMPL_H_
   6 #define MOJO_SERVICES_HTML_VIEWER_WEBTHREAD_IMPL_H_
   7
   8 #include <map>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/threading/thread.h"
  12 #include "third_party/WebKit/public/platform/WebThread.h"
  13
  14 namespace mojo {
  15
  16 class WebThreadBase : public blink::WebThread {
  17  public:
  18   virtual ~WebThreadBase();
  19
  20   virtual void addTaskObserver(TaskObserver* observer);
  21   virtual void removeTaskObserver(TaskObserver* observer);
  22
  23   virtual bool isCurrentThread() const = 0;
  24   virtual blink::PlatformThreadId threadId() const = 0;
  25
  26  protected:
  27   WebThreadBase();
  28
  29  private:
  30   class TaskObserverAdapter;
  31
  32   typedef std::map<TaskObserver*, TaskObserverAdapter*> TaskObserverMap;
  33   TaskObserverMap task_observer_map_;
  34 };
  35
  36 class WebThreadImpl : public WebThreadBase {
  37  public:
  38   explicit WebThreadImpl(const char* name);
  39   virtual ~WebThreadImpl();
  40
  41   virtual void postTask(Task* task);
  42   virtual void postDelayedTask(Task* task, long long delay_ms);
  43
  44   virtual void enterRunLoop();
  45   virtual void exitRunLoop();
  46
  47   base::MessageLoop* message_loop() const { return thread_->message_loop(); }
  48
  49   virtual bool isCurrentThread() const;
  50   virtual blink::PlatformThreadId threadId() const;
  51
  52  private:
  53   scoped_ptr<base::Thread> thread_;
  54 };
  55
  56 class WebThreadImplForMessageLoop : public WebThreadBase {
  57  public:
  58   explicit WebThreadImplForMessageLoop(
  59       base::MessageLoopProxy* message_loop);
  60   virtual ~WebThreadImplForMessageLoop();
  61
  62   virtual void postTask(Task* task);
  63   virtual void postDelayedTask(Task* task, long long delay_ms);
  64
  65   virtual void enterRunLoop();
  66   virtual void exitRunLoop();
  67
  68  private:
  69   virtual bool isCurrentThread() const;
  70   virtual blink::PlatformThreadId threadId() const;
  71
  72   scoped_refptr<base::MessageLoopProxy> message_loop_;
  73   blink::PlatformThreadId thread_id_;
  74 };
  75
  76 }  // namespace mojo
  77
  78 #endif  // MOJO_SERVICES_HTML_VIEWER_WEBTHREAD_IMPL_H_