Refactor BalloonViewHost, removing a lot of duplicate code that crept into no...

chrome/browser/views/notifications/balloon_view_host.h

 // Copyright (c) 2010 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 CHROME_BROWSER_VIEWS_NOTIFICATIONS_BALLOON_VIEW_HOST_H_
 #define CHROME_BROWSER_VIEWS_NOTIFICATIONS_BALLOON_VIEW_HOST_H_
 
-#include "chrome/browser/notifications/balloon.h"
-#include "chrome/browser/notifications/notification.h"
-#include "chrome/browser/renderer_host/render_view_host_delegate.h"
-#include "chrome/browser/renderer_host/site_instance.h"
-#include "chrome/browser/tab_contents/render_view_host_delegate_helper.h"
-#include "chrome/common/renderer_preferences.h"
+#include "chrome/browser/notifications/balloon_host.h"
 #include "views/controls/native/native_view_host.h"
-#include "webkit/glue/webpreferences.h"
-
-class Profile;
-class RenderViewHost;
-class SkBitmap;
-namespace gfx {
-class Point;
-}
 
 // BalloonViewHost class is a delegate to the renderer host for the HTML
 // notification.  When initialized it creates a new RenderViewHost and loads
 // the contents of the toast into it.  It also handles links within the toast,
 // loading them into a new tab.
-class BalloonViewHost : public views::NativeViewHost,
-                        public RenderViewHostDelegate,
-                        public RenderViewHostDelegate::View {
+class BalloonViewHost : public BalloonHost {
  public:
   explicit BalloonViewHost(Balloon* balloon);
 
   ~BalloonViewHost() {
      Shutdown();
   }
 
-  // Stops showing the balloon.
-  void Shutdown();
-
-  // RenderViewHostDelegate overrides.
-  virtual WebPreferences GetWebkitPrefs();
-  virtual SiteInstance* GetSiteInstance() const {
-    return site_instance_.get();
-  }
-  virtual Profile* GetProfile() const { return balloon_->profile(); }
-  virtual const GURL& GetURL() const {
-    return balloon_->notification().content_url();
-  }
-  virtual void Close(RenderViewHost* render_view_host);
-  virtual void RenderViewCreated(RenderViewHost* render_view_host);
-  virtual void RendererReady(RenderViewHost* render_view_host);
-  virtual void RendererGone(RenderViewHost* render_view_host);
-  virtual void UpdateTitle(RenderViewHost* /* render_view_host */,
-                           int32 /* page_id */, const std::wstring& title) {
-    title_ = title;
-  }
-  virtual int GetBrowserWindowID() const { return -1; }
-  virtual ViewType::Type GetRenderViewType() const {
-    return ViewType::TAB_CONTENTS;
-  }
-  virtual RenderViewHostDelegate::View* GetViewDelegate() {
-    return this;
-  }
-
-  // RenderViewHostDelegate::View methods. Only the ones for opening new
-  // windows are currently implemented.
-  virtual void CreateNewWindow(int route_id);
-  virtual void CreateNewWidget(int route_id, bool activatable) {}
-  virtual void ShowCreatedWindow(int route_id,
-                                 WindowOpenDisposition disposition,
-                                 const gfx::Rect& initial_pos,
-                                 bool user_gesture);
-  virtual void ShowCreatedWidget(int route_id,
-                                 const gfx::Rect& initial_pos) {}
-  virtual void ShowContextMenu(const ContextMenuParams& params) {}
-  virtual void StartDragging(const WebDropData& drop_data,
-                             WebKit::WebDragOperationsMask allowed_ops,
-                             const SkBitmap& image,
-                             const gfx::Point& image_offset) {}
-  virtual void UpdateDragCursor(WebKit::WebDragOperation operation) {}
-  virtual void GotFocus() {}
-  virtual void TakeFocus(bool reverse) {}
-  virtual bool PreHandleKeyboardEvent(const NativeWebKeyboardEvent& event,
-                                      bool* is_keyboard_shortcut) {
-    return false;
-  }
-  virtual void HandleKeyboardEvent(const NativeWebKeyboardEvent& event) {}
-  virtual void HandleMouseEvent() {}
-  virtual void HandleMouseLeave() {}
-  virtual void UpdatePreferredSize(const gfx::Size& pref_size);
-  virtual RendererPreferences GetRendererPrefs(Profile* profile) const {
-    return RendererPreferences();
+  void SetPreferredSize(const gfx::Size& size) {
+    native_host_->SetPreferredSize(size);
   }
 
   // Accessors.
-  RenderViewHost* render_view_host() const { return render_view_host_; }
-  const std::wstring& title() const { return title_; }
+  views::View* view() {
+    return native_host_.get();
+  }
 
- private:
-  // View overrides.
-  virtual void ViewHierarchyChanged(bool is_add,
-                                    views::View *parent,
-                                    views::View *child);
+  gfx::NativeView native_view() const {
+    return native_host_->native_view();
+  }
 
   // Initialize the view, parented to |parent|, and show it.
   void Init(gfx::NativeView parent);
 
-  // True after Init() has completed.
-  bool initialized_;
+ protected:
+  virtual void InitRenderWidgetHostView();
+  virtual RenderWidgetHostView* render_widget_host_view() const {
+    return render_widget_host_view_;
+  }
 
-  // Non-owned pointer to the associated balloon.
-  Balloon* balloon_;
+ private:
+  // The platform-specific widget host view.  Pointer is owned by the RVH.
+  RenderWidgetHostView* render_widget_host_view_;
 
-  // Site instance for the balloon/profile, to be used for opening new links.
-  scoped_refptr<SiteInstance> site_instance_;
+  // The views-specific host view.
+  scoped_ptr<views::NativeViewHost> native_host_;
 
-  // Owned pointer to to host for the renderer process.
-  RenderViewHost* render_view_host_;
-
-  // Indicates whether we should notify about disconnection of this balloon.
-  // This is used to ensure disconnection notifications only happen if
-  // a connection notification has happened and that they happen only once.
-  bool should_notify_on_disconnect_;
-
-  // The title of the balloon page.
-  std::wstring title_;
-
-  // Whether the page we are rendering is from an extension.
-  bool is_extension_page_;
-
-  // Common implementations of some RenderViewHostDelegate::View methods.
-  RenderViewHostDelegateViewHelper delegate_view_helper_;
+  // The handle to the parent view.
+  gfx::NativeView parent_native_view_;
 
   DISALLOW_COPY_AND_ASSIGN(BalloonViewHost);
 };
 
 #endif  // CHROME_BROWSER_VIEWS_NOTIFICATIONS_BALLOON_VIEW_HOST_H_