content/plugin/plugin_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_PLUGIN_PLUGIN_THREAD_H_
   6 #define CONTENT_PLUGIN_PLUGIN_THREAD_H_
   7
   8 #include "base/files/file_path.h"
   9 #include "base/native_library.h"
  10 #include "build/build_config.h"
  11 #include "content/child/child_thread_impl.h"
  12 #include "content/child/npapi/plugin_lib.h"
  13 #include "content/plugin/plugin_channel.h"
  14
  15 #if defined(OS_POSIX)
  16 #include "base/file_descriptor_posix.h"
  17 #endif
  18
  19 namespace content {
  20 class BlinkPlatformImpl;
  21
  22 // The PluginThread class represents a background thread where plugin instances
  23 // live.  Communication occurs between WebPluginDelegateProxy in the renderer
  24 // process and WebPluginDelegateStub in this thread through IPC messages.
  25 class PluginThread : public ChildThreadImpl {
  26  public:
  27   PluginThread();
  28   ~PluginThread() override;
  29   void Shutdown() override;
  30
  31   // Returns the one plugin thread.
  32   static PluginThread* current();
  33
  34   // Tells the plugin thread to terminate the process forcefully instead of
  35   // exiting cleanly.
  36   void SetForcefullyTerminatePluginProcess();
  37
  38  private:
  39   bool OnControlMessageReceived(const IPC::Message& msg) override;
  40
  41   // Callback for when a channel has been created.
  42   void OnCreateChannel(int renderer_id, bool incognito);
  43   void OnPluginMessage(const std::vector<uint8> &data);
  44   void OnNotifyRenderersOfPendingShutdown();
  45 #if defined(OS_MACOSX)
  46   void OnAppActivated();
  47   void OnPluginFocusNotify(uint32 instance_id);
  48 #endif
  49
  50   // The plugin module which is preloaded in Init
  51   base::NativeLibrary preloaded_plugin_module_;
  52
  53   bool forcefully_terminate_plugin_process_;
  54
  55   scoped_ptr<BlinkPlatformImpl> blink_platform_impl_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(PluginThread);
  58 };
  59
  60 }  // namespace content
  61
  62 #endif  // CONTENT_PLUGIN_PLUGIN_THREAD_H_