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/child/child_thread.h"
  14 #include "content/common/content_export.h"
  15 #include "content/public/utility/utility_thread.h"
  16
  17 namespace base {
  18 class FilePath;
  19 }
  20
  21 namespace content {
  22 class WebKitPlatformSupportImpl;
  23
  24 // This class represents the background thread where the utility task runs.
  25 class UtilityThreadImpl : public UtilityThread,
  26                           public ChildThread {
  27  public:
  28   UtilityThreadImpl();
  29   virtual ~UtilityThreadImpl();
  30   virtual void Shutdown() OVERRIDE;
  31
  32   virtual bool Send(IPC::Message* msg) OVERRIDE;
  33   virtual void ReleaseProcessIfNeeded() OVERRIDE;
  34 #if defined(OS_WIN)
  35   virtual void PreCacheFont(const LOGFONT& log_font) OVERRIDE;
  36   virtual void ReleaseCachedFonts() OVERRIDE;
  37 #endif
  38
  39  private:
  40   // ChildThread implementation.
  41   virtual bool OnControlMessageReceived(const IPC::Message& msg) OVERRIDE;
  42
  43   // IPC message handlers.
  44   void OnBatchModeStarted();
  45   void OnBatchModeFinished();
  46
  47 #if defined(OS_POSIX)
  48   void OnLoadPlugins(const std::vector<base::FilePath>& plugin_paths);
  49 #endif  // OS_POSIX
  50
  51   // True when we're running in batch mode.
  52   bool batch_mode_;
  53
  54   scoped_ptr<WebKitPlatformSupportImpl> webkit_platform_support_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(UtilityThreadImpl);
  57 };
  58
  59 }  // namespace content
  60
  61 #endif  // CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_