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
  25  protected:
  26   WebThreadBase();
  27
  28  private:
  29   class TaskObserverAdapter;
  30
  31   typedef std::map<TaskObserver*, TaskObserverAdapter*> TaskObserverMap;
  32   TaskObserverMap task_observer_map_;
  33 };
  34
  35 class WebThreadImpl : public WebThreadBase {
  36  public:
  37   explicit WebThreadImpl(const char* name);
  38   virtual ~WebThreadImpl();
  39
  40   virtual void postTask(Task* task);
  41   virtual void postDelayedTask(Task* task, long long delay_ms);
  42
  43   virtual void enterRunLoop();
  44   virtual void exitRunLoop();
  45
  46   base::MessageLoop* message_loop() const { return thread_->message_loop(); }
  47
  48   virtual bool isCurrentThread() const;
  49
  50  private:
  51   scoped_ptr<base::Thread> thread_;
  52 };
  53
  54 class WebThreadImplForMessageLoop : public WebThreadBase {
  55  public:
  56   explicit WebThreadImplForMessageLoop(
  57       base::MessageLoopProxy* message_loop);
  58   virtual ~WebThreadImplForMessageLoop();
  59
  60   virtual void postTask(Task* task);
  61   virtual void postDelayedTask(Task* task, long long delay_ms);
  62
  63   virtual void enterRunLoop();
  64   virtual void exitRunLoop();
  65
  66  private:
  67   virtual bool isCurrentThread() const;
  68   scoped_refptr<base::MessageLoopProxy> message_loop_;
  69 };
  70
  71 }  // namespace mojo
  72
  73 #endif  // MOJO_SERVICES_HTML_VIEWER_WEBTHREAD_IMPL_H_