content/utility/utility_thread_impl.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_UTILITY_UTILITY_THREAD_IMPL_H_
   6 #define CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/compiler_specific.h"
  13 #include "content/common/child_thread.h"
  14 #include "content/common/content_export.h"
  15 #include "content/public/utility/utility_thread.h"
  16
  17 class FilePath;
  18
  19 namespace content {
  20 class WebKitPlatformSupportImpl;
  21
  22 // This class represents the background thread where the utility task runs.
  23 class UtilityThreadImpl : public UtilityThread,
  24                           public ChildThread {
  25  public:
  26   UtilityThreadImpl();
  27   virtual ~UtilityThreadImpl();
  28
  29   virtual bool Send(IPC::Message* msg) OVERRIDE;
  30   virtual void ReleaseProcessIfNeeded() OVERRIDE;
  31 #if defined(OS_WIN)
  32   virtual void PreCacheFont(const LOGFONT& log_font) OVERRIDE;
  33   virtual void ReleaseCachedFonts() OVERRIDE;
  34 #endif
  35
  36  private:
  37   // ChildThread implementation.
  38   virtual bool OnControlMessageReceived(const IPC::Message& msg) OVERRIDE;
  39
  40   // IPC message handlers.
  41   void OnBatchModeStarted();
  42   void OnBatchModeFinished();
  43
  44 #if defined(OS_POSIX)
  45   void OnLoadPlugins(const std::vector<FilePath>& plugin_paths);
  46 #endif  // OS_POSIX
  47
  48   // True when we're running in batch mode.
  49   bool batch_mode_;
  50
  51   scoped_ptr<WebKitPlatformSupportImpl> webkit_platform_support_;
  52
  53   DISALLOW_COPY_AND_ASSIGN(UtilityThreadImpl);
  54 };
  55
  56 }  // namespace content
  57
  58 #endif  // CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_