chrome/browser/ui/toolbar/media_router_action.h

   1 // Copyright 2015 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_TOOLBAR_MEDIA_ROUTER_ACTION_H_
   6 #define CHROME_BROWSER_UI_TOOLBAR_MEDIA_ROUTER_ACTION_H_
   7
   8 #include "base/scoped_observer.h"
   9 #include "chrome/browser/media/router/issues_observer.h"
  10 #include "chrome/browser/media/router/media_routes_observer.h"
  11 #include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
  12 #include "chrome/browser/ui/toolbar/media_router_contextual_menu.h"
  13 #include "chrome/browser/ui/toolbar/toolbar_action_view_controller.h"
  14
  15 class Browser;
  16 class MediaRouterActionPlatformDelegate;
  17 class TabStripModel;
  18
  19 namespace media_router {
  20 class MediaRouterDialogControllerImpl;
  21 }  // namespace media_router
  22
  23 // The class for the Media Router component action that will be shown in
  24 // the toolbar.
  25 class MediaRouterAction : public ToolbarActionViewController,
  26                           public media_router::IssuesObserver,
  27                           public media_router::MediaRoutesObserver,
  28                           public TabStripModelObserver {
  29  public:
  30   explicit MediaRouterAction(Browser* browser);
  31   ~MediaRouterAction() override;
  32
  33   // ToolbarActionViewController implementation.
  34   std::string GetId() const override;
  35   void SetDelegate(ToolbarActionViewDelegate* delegate) override;
  36   gfx::Image GetIcon(content::WebContents* web_contents,
  37                      const gfx::Size& size) override;
  38   base::string16 GetActionName() const override;
  39   base::string16 GetAccessibleName(content::WebContents* web_contents)
  40       const override;
  41   base::string16 GetTooltip(content::WebContents* web_contents)
  42       const override;
  43   bool IsEnabled(content::WebContents* web_contents) const override;
  44   bool WantsToRun(content::WebContents* web_contents) const override;
  45   bool HasPopup(content::WebContents* web_contents) const override;
  46   void HidePopup() override;
  47   gfx::NativeView GetPopupNativeView() override;
  48   ui::MenuModel* GetContextMenu() override;
  49   bool ExecuteAction(bool by_user) override;
  50   void UpdateState() override;
  51   bool DisabledClickOpensMenu() const override;
  52
  53   // media_router::IssuesObserver:
  54   void OnIssueUpdated(const media_router::Issue* issue) override;
  55
  56   // media_router::MediaRoutesObserver:
  57   void OnRoutesUpdated(const std::vector<media_router::MediaRoute>& routes)
  58       override;
  59
  60   // ToolbarStripModelObserver:
  61   void ActiveTabChanged(content::WebContents* old_contents,
  62                         content::WebContents* new_contents,
  63                         int index,
  64                         int reason) override;
  65
  66   void OnPopupHidden();
  67   void OnPopupShown();
  68
  69  private:
  70   void UpdatePopupState();
  71
  72   // Returns a reference to the MediaRouterDialogControllerImpl associated with
  73   // |delegate_|'s current WebContents. Guaranteed to be non-null.
  74   // |delegate_| and its current WebContents must not be null.
  75   // Marked virtual for tests.
  76   virtual media_router::MediaRouterDialogControllerImpl*
  77       GetMediaRouterDialogController();
  78
  79   // Overridden by tests.
  80   virtual media_router::MediaRouter* GetMediaRouter(Browser* browser);
  81   virtual MediaRouterActionPlatformDelegate* GetPlatformDelegate();
  82
  83   // Checks if the current icon of MediaRouterAction has changed. If so,
  84   // updates |current_icon_|.
  85   void MaybeUpdateIcon();
  86
  87   const gfx::Image* GetCurrentIcon() const;
  88
  89   // Cached icons.
  90   // Indicates that the current Chrome profile is using at least one device.
  91   const gfx::Image media_router_active_icon_;
  92   // Indicates a failure, e.g. session launch failure.
  93   const gfx::Image media_router_error_icon_;
  94   // Indicates that the current Chrome profile is not using any devices.
  95   // Devices may or may not be available.
  96   const gfx::Image media_router_idle_icon_;
  97   // Indicates there is a warning message.
  98   const gfx::Image media_router_warning_icon_;
  99
 100   // The current icon to show. This is updated based on the current issues and
 101   // routes since |this| is an IssueObserver and MediaRoutesObserver.
 102   const gfx::Image* current_icon_;
 103
 104   // The current issue shown in the Media Router WebUI. Can be null. It is set
 105   // in OnIssueUpdated(), which is called by the IssueManager.
 106   scoped_ptr<media_router::Issue> issue_;
 107
 108   // Whether a local active route exists.
 109   bool has_local_route_;
 110
 111   ToolbarActionViewDelegate* delegate_;
 112
 113   Browser* const browser_;
 114
 115   // The delegate to handle platform-specific implementations.
 116   scoped_ptr<MediaRouterActionPlatformDelegate> platform_delegate_;
 117
 118   MediaRouterContextualMenu contextual_menu_;
 119
 120   ScopedObserver<TabStripModel, TabStripModelObserver>
 121       tab_strip_model_observer_;
 122
 123   base::WeakPtrFactory<MediaRouterAction> weak_ptr_factory_;
 124
 125   DISALLOW_COPY_AND_ASSIGN(MediaRouterAction);
 126 };
 127
 128 #endif  // CHROME_BROWSER_UI_TOOLBAR_MEDIA_ROUTER_ACTION_H_