Move dispatching and sending of the last extension specific messages out of TabContents and Rende...

chrome/browser/extensions/extension_tab_helper.h

 // Copyright (c) 2011 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_EXTENSIONS_EXTENSOIN_TAB_HELPER_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSOIN_TAB_HELPER_H_
+#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_HELPER_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_HELPER_H_
 #pragma once
 
 #include "content/browser/tab_contents/tab_contents_observer.h"
 #include "chrome/browser/extensions/image_loading_tracker.h"
+#include "chrome/common/web_apps.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 class Extension;
+class TabContentsWrapper;
+struct WebApplicationInfo;
 
 // Per-tab extension helper.
 class ExtensionTabHelper : public TabContentsObserver,
                            public ImageLoadingTracker::Observer {
  public:
-  explicit ExtensionTabHelper(TabContents* tab_contents);
+  explicit ExtensionTabHelper(TabContentsWrapper* wrapper);
   virtual ~ExtensionTabHelper();
 
   // Copies the internal state from another ExtensionTabHelper.
   void CopyStateFrom(const ExtensionTabHelper& source);
 
   // Call this after updating a page action to notify clients about the changes.
   void PageActionStateChanged();
 
+  // Requests application info for the specified page. This is an asynchronous
+  // request. The delegate is notified by way of OnDidGetApplicationInfo when
+  // the data is available.
+  void GetApplicationInfo(int32 page_id);
+
   // App extensions ------------------------------------------------------------
 
   // Sets the extension denoting this as an app. If |extension| is non-null this
   // tab becomes an app-tab. TabContents does not listen for unload events for
   // the extension. It's up to consumers of TabContents to do that.
   //
   // NOTE: this should only be manipulated before the tab is added to a browser.
   // TODO(sky): resolve if this is the right way to identify an app tab. If it
   // is, than this should be passed in the constructor.
   void SetExtensionApp(const Extension* extension);
 
   // Convenience for setting the app extension by id. This does nothing if
   // |extension_app_id| is empty, or an extension can't be found given the
   // specified id.
   void SetExtensionAppById(const std::string& extension_app_id);
 
   const Extension* extension_app() const { return extension_app_; }
   bool is_app() const { return extension_app_ != NULL; }
+  const WebApplicationInfo& web_app_info() const {
+    return web_app_info_;
+  }
 
   // If an app extension has been explicitly set for this TabContents its icon
   // is returned.
   //
   // NOTE: the returned icon is larger than 16x16 (its size is
   // Extension::EXTENSION_ICON_SMALLISH).
   SkBitmap* GetExtensionAppIcon();
 
   TabContents* tab_contents() const {
       return TabContentsObserver::tab_contents();
   }
 
  private:
   // TabContentsObserver overrides.
   virtual void DidNavigateMainFramePostCommit(
       const NavigationController::LoadCommittedDetails& details,
       const ViewHostMsg_FrameNavigate_Params& params) OVERRIDE;
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+  virtual bool OnMessageReceived(const IPC::Message& message);
+
+  // Message handlers.
+  void OnDidGetApplicationInfo(int32 page_id, const WebApplicationInfo& info);
+  void OnInstallApplication(const WebApplicationInfo& info);
 
   // App extensions related methods:
 
   // Resets app_icon_ and if |extension| is non-null creates a new
   // ImageLoadingTracker to load the extension's image.
   void UpdateExtensionAppIcon(const Extension* extension);
 
   // ImageLoadingTracker::Observer.
   virtual void OnImageLoaded(SkBitmap* image, const ExtensionResource& resource,
                              int index);
 
-  // Message handlers.
-  void OnPostMessage(int port_id, const std::string& message);
-
   // Data for app extensions ---------------------------------------------------
 
   // If non-null this tab is an app tab and this is the extension the tab was
   // created for.
   const Extension* extension_app_;
 
   // Icon for extension_app_ (if non-null) or extension_for_current_page_.
   SkBitmap extension_app_icon_;
 
   // Used for loading extension_app_icon_.
   scoped_ptr<ImageLoadingTracker> extension_app_image_loader_;
 
+  // Cached web app info data.
+  WebApplicationInfo web_app_info_;
+
+  TabContentsWrapper* wrapper_;
+
   DISALLOW_COPY_AND_ASSIGN(ExtensionTabHelper);
 };
 
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSOIN_TAB_HELPER_H_
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_HELPER_H_