ash/system/cast/tray_cast.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 ASH_SYSTEM_CAST_TRAY_CAST_H_
   6 #define ASH_SYSTEM_CAST_TRAY_CAST_H_
   7
   8 #include "ash/cast_config_delegate.h"
   9 #include "ash/shell_observer.h"
  10 #include "ash/system/tray/system_tray_item.h"
  11 #include "base/memory/weak_ptr.h"
  12
  13 namespace ash {
  14 namespace tray {
  15 class CastTrayView;
  16 class CastSelectDefaultView;
  17 class CastDetailedView;
  18 class CastDuplexView;
  19 }  // namespace tray
  20
  21 class ASH_EXPORT TrayCast : public SystemTrayItem, public ShellObserver {
  22  public:
  23   explicit TrayCast(SystemTray* system_tray);
  24   ~TrayCast() override;
  25
  26  private:
  27   // Helper/utility methods for testing.
  28   friend class TrayCastTestAPI;
  29   void StartCastForTest(const std::string& receiver_id);
  30   void StopCastForTest();
  31   const views::View* GetDefaultView() const;
  32   enum ChildViewId { TRAY_VIEW = 1, SELECT_VIEW, CAST_VIEW };
  33
  34   // Overridden from SystemTrayItem.
  35   views::View* CreateTrayView(user::LoginStatus status) override;
  36   views::View* CreateDefaultView(user::LoginStatus status) override;
  37   views::View* CreateDetailedView(user::LoginStatus status) override;
  38   void DestroyTrayView() override;
  39   void DestroyDefaultView() override;
  40   void DestroyDetailedView() override;
  41   void UpdateAfterShelfAlignmentChange(ShelfAlignment alignment) override;
  42
  43   // Overridden from ShellObserver.
  44   void OnCastingSessionStartedOrStopped(bool started) override;
  45
  46   // Returns true if the cast extension was detected.
  47   bool HasCastExtension();
  48
  49   // Callback used to enable/disable the begin casting view depending on
  50   // if we have any cast receivers.
  51   void OnReceiversUpdated(
  52       const CastConfigDelegate::ReceiversAndActivites& receivers_activities);
  53
  54   // This makes sure that the current view displayed in the tray is the correct
  55   // one, depending on if we are currently casting. If we're casting, then a
  56   // view with a stop button is displayed; otherwise, a view that links to a
  57   // detail view is displayed instead that allows the user to easily begin a
  58   // casting session.
  59   void UpdatePrimaryView();
  60
  61   CastConfigDelegate::ReceiversAndActivites receivers_and_activities_;
  62   CastConfigDelegate::DeviceUpdateSubscription device_update_subscription_;
  63   bool is_casting_ = false;
  64
  65   // Not owned.
  66   tray::CastTrayView* tray_ = nullptr;
  67   tray::CastDuplexView* default_ = nullptr;
  68   tray::CastDetailedView* detailed_ = nullptr;
  69
  70   base::WeakPtrFactory<TrayCast> weak_ptr_factory_;
  71
  72   DISALLOW_COPY_AND_ASSIGN(TrayCast);
  73 };
  74
  75 }  // namespace ash
  76
  77 #endif  // ASH_SYSTEM_CAST_TRAY_CAST_H_