PPAPI/NaCl: Reinitialize some stuff when the ipc proxy starts.

webkit/plugins/ppapi/ppapi_plugin_instance.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WEBKIT_PLUGINS_PPAPI_PPAPI_PLUGIN_INSTANCE_H_
 #define WEBKIT_PLUGINS_PPAPI_PPAPI_PLUGIN_INSTANCE_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 78 matching lines @@
 
 // Represents one time a plugin appears on one web page.
 //
 // Note: to get from a PP_Instance to a PluginInstance*, use the
 // ResourceTracker.
 class WEBKIT_PLUGINS_EXPORT PluginInstance :
     public base::RefCounted<PluginInstance>,
     public base::SupportsWeakPtr<PluginInstance>,
     public ::ppapi::PPB_Instance_Shared {
  public:
-  // Create and return a PluginInstance object which supports the
-  // given version.
-  static PluginInstance* Create1_0(PluginDelegate* delegate,
-                                   PluginModule* module,
-                                   const void* ppp_instance_if_1_0);
-  static PluginInstance* Create1_1(PluginDelegate* delegate,
-                                   PluginModule* module,
-                                   const void* ppp_instance_if_1_1);
-
+  // Create and return a PluginInstance object which supports the most recent
+  // version of PPP_Instance possible by querying the given get_plugin_interface
+  // function. If the plugin does not support any valid PPP_Instance interface,
+  // returns NULL.
+  static PluginInstance* Create(PluginDelegate* delegate, PluginModule* module);
   // Delete should be called by the WebPlugin before this destructor.
   virtual ~PluginInstance();
 
   PluginDelegate* delegate() const { return delegate_; }
   PluginModule* module() const { return module_.get(); }
   MessageChannel& message_channel() { return *message_channel_; }
 
   WebKit::WebPluginContainer* container() const { return container_; }
 
   void set_always_on_top(bool on_top) { always_on_top_ = on_top; }
@@ skipping 280 matching lines @@
       PP_URLComponents_Dev* components) OVERRIDE;
   virtual PP_Bool DocumentCanRequest(PP_Instance instance, PP_Var url) OVERRIDE;
   virtual PP_Bool DocumentCanAccessDocument(PP_Instance instance,
                                             PP_Instance target) OVERRIDE;
   virtual PP_Var GetDocumentURL(PP_Instance instance,
                                 PP_URLComponents_Dev* components) OVERRIDE;
   virtual PP_Var GetPluginInstanceURL(
       PP_Instance instance,
       PP_URLComponents_Dev* components) OVERRIDE;
 
+  // Reset this instance as proxied. Resets cached interfaces to point to the
+  // proxy and re-sends DidCreate, DidChangeView, and HandleDocumentLoad (if
+  // necessary).
+  // This is for use with the NaCl proxy.
+  bool ResetAsProxied();
+
  private:
   // See the static Create functions above for creating PluginInstance objects.
   // This constructor is private so that we can hide the PPP_Instance_Combined
   // details while still having 1 constructor to maintain for member
   // initialization.
   PluginInstance(PluginDelegate* delegate,
                  PluginModule* module,
                  ::ppapi::PPP_Instance_Combined* instance_interface);
 
   bool LoadFindInterface();
@@ skipping 88 matching lines @@
   bool full_frame_;
 
   // Stores the current state of the plugin view.
   ::ppapi::ViewData view_data_;
 
   // Indicates if we've ever sent a didChangeView to the plugin. This ensure we
   // always send an initial notification, even if the position and clip are the
   // same as the default values.
   bool sent_initial_did_change_view_;
 
-  // Set to true when we've scheduled an asynchronous DidChangeView update for
-  // the purposes of consolidating updates. When this is set, code should
-  // update the view_data_ but not send updates. It will be cleared once the
-  // asynchronous update has been sent out.
-  bool suppress_did_change_view_;
+  // We use a weak ptr factory for scheduling DidChangeView events so that we
+  // can tell whether updates are pending and consolidate them. When there's
+  // already a weak ptr pending (HasWeakPtrs is true), code should update the
+  // view_data_ but not send updates. This also allows us to cancel scheduled
+  // view change events.
+  base::WeakPtrFactory<PluginInstance> view_change_weak_ptr_factory_;
 
   // The current device context for painting in 2D or 3D.
   scoped_refptr< ::ppapi::Resource> bound_graphics_;
 
   // We track two types of focus, one from WebKit, which is the focus among
   // all elements of the page, one one from the browser, which is whether the
   // tab/window has focus. We tell the plugin it has focus only when both of
   // these values are set to true.
   bool has_webkit_focus_;
   bool has_content_area_focus_;
 
   // The id of the current find operation, or -1 if none is in process.
   int find_identifier_;
 
   // Helper object that creates resources.
   ResourceCreationImpl resource_creation_;
 
   // The plugin-provided interfaces.
   const PPP_Find_Dev* plugin_find_interface_;
+  const PPP_InputEvent* plugin_input_event_interface_;
   const PPP_Messaging* plugin_messaging_interface_;
   const PPP_MouseLock* plugin_mouse_lock_interface_;
-  const PPP_InputEvent* plugin_input_event_interface_;
+  const PPP_Pdf* plugin_pdf_interface_;
   const PPP_Instance_Private* plugin_private_interface_;
-  const PPP_Pdf* plugin_pdf_interface_;
   const PPP_Selection_Dev* plugin_selection_interface_;
   const PPP_TextInput_Dev* plugin_textinput_interface_;
   const PPP_Zoom_Dev* plugin_zoom_interface_;
 
   // Flags indicating whether we have asked this plugin instance for the
   // corresponding interfaces, so that we can ask only once.
   bool checked_for_plugin_input_event_interface_;
   bool checked_for_plugin_messaging_interface_;
 
   // This is only valid between a successful PrintBegin call and a PrintEnd
@@ skipping 90 matching lines @@
 
   PP_CompletionCallback lock_mouse_callback_;
 
   // Track pending user gestures so out-of-process plugins can respond to
   // a user gesture after it has been processed.
   PP_TimeTicks pending_user_gesture_;
 
   // The Flash proxy is associated with the instance.
   PPB_Flash_Impl flash_impl_;
 
+  // We store the arguments so we can re-send them if we are reset to talk to
+  // NaCl via the IPC NaCl proxy.
+  std::vector<std::string> argn_;
+  std::vector<std::string> argv_;
+
+  // This is NULL unless HandleDocumentLoad has called. In that case, we store
+  // the pointer so we can re-send it later if we are reset to talk to NaCl.
+  scoped_refptr<PPB_URLLoader_Impl> document_loader_;
+
   DISALLOW_COPY_AND_ASSIGN(PluginInstance);
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PPAPI_PLUGIN_INSTANCE_H_