content/renderer/browser_plugin/browser_plugin_manager.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_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_MANAGER_H_
   6 #define CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_MANAGER_H_
   7
   8 #include "base/id_map.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "content/public/renderer/render_process_observer.h"
  11 #include "ipc/ipc_sender.h"
  12
  13 namespace blink {
  14 class WebFrame;
  15 }
  16
  17 namespace content {
  18
  19 class BrowserPlugin;
  20 class BrowserPluginDelegate;
  21 class RenderFrame;
  22
  23 // BrowserPluginManager manages the routing of messages to the appropriate
  24 // BrowserPlugin object based on its instance ID. There is one BrowserPlugin
  25 // for the RenderThread.
  26 class CONTENT_EXPORT BrowserPluginManager : public RenderProcessObserver {
  27  public:
  28   static BrowserPluginManager* Get();
  29
  30   BrowserPluginManager();
  31   ~BrowserPluginManager() override;
  32
  33   // Creates a new BrowserPlugin object.
  34   // BrowserPlugin is responsible for associating itself with the
  35   // BrowserPluginManager via AddBrowserPlugin. When it is destroyed, it is
  36   // responsible for removing its association via RemoveBrowserPlugin.
  37   // The |delegate| is expected to manage its own lifetime.
  38   // Generally BrowserPlugin calls DidDestroyElement() on the delegate and
  39   // right now the delegate destroys itself once it hears that callback.
  40   BrowserPlugin* CreateBrowserPlugin(
  41       RenderFrame* render_frame,
  42       const base::WeakPtr<BrowserPluginDelegate>& delegate);
  43
  44   void Attach(int browser_plugin_instance_id);
  45
  46   void Detach(int browser_plugin_instance_id);
  47
  48   void AddBrowserPlugin(int browser_plugin_instance_id,
  49                         BrowserPlugin* browser_plugin);
  50   void RemoveBrowserPlugin(int browser_plugin_instance_id);
  51   BrowserPlugin* GetBrowserPlugin(int browser_plugin_instance_id) const;
  52
  53   void UpdateFocusState();
  54
  55   // Returns a new instance ID to be used by BrowserPlugin. Instance IDs are
  56   // unique per process.
  57   int GetNextInstanceID();
  58
  59   void DidCommitCompositorFrame(int render_frame_routing_id);
  60   bool Send(IPC::Message* msg);
  61
  62   // RenderProcessObserver override.
  63   bool OnControlMessageReceived(const IPC::Message& message) override;
  64
  65  private:
  66   // IPC message handlers.
  67   void OnCompositorFrameSwappedPluginUnavailable(const IPC::Message& message);
  68
  69   // This map is keyed by guest instance IDs.
  70   IDMap<BrowserPlugin> instances_;
  71
  72   DISALLOW_COPY_AND_ASSIGN(BrowserPluginManager);
  73 };
  74
  75 }  // namespace content
  76
  77 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_MANAGER_H_