chrome/browser/ui/webui/uber/uber_ui.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 CHROME_BROWSER_UI_WEBUI_UBER_UBER_UI_H_
   6 #define CHROME_BROWSER_UI_WEBUI_UBER_UBER_UI_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/scoped_vector.h"
  11 #include "base/values.h"
  12 #include "chrome/browser/profiles/profile.h"
  13 #include "content/public/browser/notification_observer.h"
  14 #include "content/public/browser/notification_registrar.h"
  15 #include "content/public/browser/web_ui_controller.h"
  16
  17 // The WebUI class for the uber page (chrome://chrome). It manages the UI for
  18 // the uber page (navigation bar and so forth) as well as WebUI objects for
  19 // pages that appear in the uber page.
  20 class UberUI : public content::WebUIController {
  21  public:
  22   explicit UberUI(content::WebUI* web_ui);
  23   virtual ~UberUI();
  24
  25   content::WebUI* GetSubpage(const std::string& page_url);
  26
  27   // WebUIController implementation.
  28   virtual bool OverrideHandleWebUIMessage(const GURL& source_url,
  29                                           const std::string& message,
  30                                           const base::ListValue& args) OVERRIDE;
  31
  32   // We forward these to |sub_uis_|.
  33   virtual void RenderViewCreated(
  34       content::RenderViewHost* render_view_host) OVERRIDE;
  35   virtual void RenderViewReused(
  36       content::RenderViewHost* render_view_host) OVERRIDE;
  37
  38  private:
  39   // A map from URL origin to WebUI instance.
  40   typedef std::map<std::string, content::WebUI*> SubpageMap;
  41
  42   // Creates and stores a WebUI for the given URL.
  43   void RegisterSubpage(const std::string& page_url,
  44                        const std::string& page_host);
  45
  46   // The WebUI*s in this map are owned.
  47   SubpageMap sub_uis_;
  48
  49   DISALLOW_COPY_AND_ASSIGN(UberUI);
  50 };
  51
  52 class UberFrameUI : public content::NotificationObserver,
  53                     public content::WebUIController {
  54  public:
  55   explicit UberFrameUI(content::WebUI* web_ui);
  56   virtual ~UberFrameUI();
  57
  58  private:
  59   // content::NotificationObserver implementation.
  60   virtual void Observe(int type,
  61                        const content::NotificationSource& source,
  62                        const content::NotificationDetails& details) OVERRIDE;
  63
  64   content::NotificationRegistrar registrar_;
  65
  66   DISALLOW_COPY_AND_ASSIGN(UberFrameUI);
  67 };
  68
  69 #endif  // CHROME_BROWSER_UI_WEBUI_UBER_UBER_UI_H_