content/browser/in_process_webkit/webkit_thread.h

   1 // Copyright (c) 2012 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 CONTENT_BROWSER_IN_PROCESS_WEBKIT_WEBKIT_THREAD_H_
   6 #define CONTENT_BROWSER_IN_PROCESS_WEBKIT_WEBKIT_THREAD_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/threading/thread.h"
  11 #include "content/browser/browser_thread_impl.h"
  12 #include "content/common/content_export.h"
  13
  14 namespace content {
  15 class BrowserWebKitPlatformSupportImpl;
  16
  17 // This creates a WebKit main thread on instantiation (if not in
  18 // --single-process mode) on construction and kills it on deletion.
  19 class CONTENT_EXPORT WebKitThread {
  20  public:
  21   // Called from the UI thread.
  22   WebKitThread();
  23   ~WebKitThread();
  24   void Initialize();
  25
  26  private:
  27   // Must be private so that we can carefully control its lifetime.
  28   class InternalWebKitThread : public BrowserThreadImpl {
  29    public:
  30     InternalWebKitThread();
  31     virtual ~InternalWebKitThread();
  32     // Does the actual initialization and shutdown of WebKit.  Called at the
  33     // beginning and end of the thread's lifetime.
  34     virtual void Init() OVERRIDE;
  35     virtual void CleanUp() OVERRIDE;
  36
  37    private:
  38     // The WebKitPlatformSupport implementation.  Only access on WebKit thread.
  39     scoped_ptr<BrowserWebKitPlatformSupportImpl> webkit_platform_support_;
  40   };
  41
  42   // Pointer to the actual WebKitThread.
  43   scoped_ptr<InternalWebKitThread> webkit_thread_;
  44
  45   DISALLOW_COPY_AND_ASSIGN(WebKitThread);
  46 };
  47
  48 }  // namespace content
  49
  50 #endif  // CONTENT_BROWSER_IN_PROCESS_WEBKIT_WEBKIT_THREAD_H_