Browser Plugin: Implement AutoSize

content/renderer/browser_plugin/browser_plugin.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  CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_
 #define  CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_
 
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPlugin.h"
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 41 matching lines @@
   // Set the maxwidth attribute value.
   void SetMaxWidthAttribute(int max_width);
   // Get the minheight attribute value.
   int min_height_attribute() const { return min_height_; }
   // Set the minheight attribute value.
   void SetMinHeightAttribute(int minheight);
   // Get the minwidth attribute value.
   int min_width_attribute() const { return min_width_; }
   // Set the minwidth attribute value.
   void SetMinWidthAttribute(int minwidth);
+  bool InAutoSizeBounds(const gfx::Size& size) const;
 
   // Get the guest's DOMWindow proxy.
   NPObject* GetContentWindow() const;
 
   // Returns Chrome's process ID for the current guest.
   int process_id() const { return process_id_; }
   // The partition identifier string is stored as UTF-8.
   std::string GetPartitionAttribute() const;
   // Query whether the guest can navigate back to the previous entry.
   bool CanGoBack() const;
@@ skipping 147 matching lines @@
   bool IsValidEvent(const std::string& event_name);
 
   // Triggers the event-listeners for |event_name|.
   void TriggerEvent(const std::string& event_name,
                     v8::Local<v8::Object>* event);
 
   // Creates and maps transport dib. Overridden in tests.
   virtual TransportDIB* CreateTransportDIB(const size_t size);
   // Frees up the damage buffer. Overridden in tests.
   virtual void FreeDamageBuffer();
+  // Populates BrowserPluginHostMsg_ResizeGuest_Params with resize state and
+  // returns the newly allocated TransportDIB.
+  TransportDIB* PopulateResizeGuestParameters(
+      BrowserPluginHostMsg_ResizeGuest_Params* params,
+      int view_width, int view_height);
 
   // Populates BrowserPluginHostMsg_AutoSize_Params object with autosize state.
   void PopulateAutoSizeParameters(
-      BrowserPluginHostMsg_AutoSize_Params* params) const;
+      BrowserPluginHostMsg_AutoSize_Params* params);
+
   // Informs the guest of an updated autosize state.
-  void UpdateGuestAutoSizeState() const;
+  void UpdateGuestAutoSizeState();
+
+  // Informs the BrowserPlugin that guest has changed its size in autosize mode.
+  void SizeChanged(const gfx::Size& old_view_size);
 
   int instance_id_;
   base::WeakPtr<RenderViewImpl> render_view_;
   // We cache the |render_view_|'s routing ID because we need it on destruction.
   // If the |render_view_| is destroyed before the BrowserPlugin is destroyed
   // then we will attempt to access a NULL pointer.
   int render_view_routing_id_;
   WebKit::WebPluginContainer* container_;
   scoped_ptr<BrowserPluginBindings> bindings_;
   scoped_ptr<BrowserPluginBackingStore> backing_store_;
@@ skipping 17 matching lines @@
   bool persist_storage_;
   int content_window_routing_id_;
   bool focused_;
   // Tracks the visibility of the browser plugin regardless of the whole
   // embedder RenderView's visibility.
   bool visible_;
   typedef std::vector<v8::Local<v8::Function> > EventListenersLocal;
   typedef std::vector<v8::Persistent<v8::Function> > EventListeners;
   typedef std::map<std::string, EventListeners> EventListenerMap;
   EventListenerMap event_listener_map_;
+  gfx::Size last_view_size_;
+  bool size_changed_in_flight_;
   // Important: Do not add more history state here.
   // We strongly discourage storing additional history state (such as page IDs)
   // in the embedder process, at the risk of having incorrect information that
   // can lead to broken back/forward logic in apps.
   // It's also important that this state does not get modified by any logic in
   // the embedder process. It should only be updated in response to navigation
   // events in the guest.  No assumptions should be made about how the index
   // will change after a navigation (e.g., for back, forward, or go), because
   // the changes are not always obvious.  For example, there is a maximum
   // number of entries and earlier ones will automatically be pruned.
   int current_nav_entry_index_;
   int nav_entry_count_;
   DISALLOW_COPY_AND_ASSIGN(BrowserPlugin);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_