chrome/browser/ui/ash/launcher/app_window_launcher_item_controller.h

   1 // Copyright 2014 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_ASH_LAUNCHER_APP_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_
   6 #define CHROME_BROWSER_UI_ASH_LAUNCHER_APP_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_
   7
   8 #include <list>
   9 #include <string>
  10
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/scoped_observer.h"
  13 #include "chrome/browser/ui/ash/launcher/launcher_item_controller.h"
  14 #include "ui/aura/window_observer.h"
  15
  16 namespace aura {
  17 class Window;
  18 }
  19
  20 namespace extensions {
  21 class AppWindow;
  22 }
  23
  24 namespace gfx {
  25 class Image;
  26 }
  27
  28 class ChromeLauncherController;
  29
  30 // This is a LauncherItemController for app windows. There is one instance per
  31 // app, per launcher id. For apps with multiple windows, each item controller
  32 // keeps track of all windows associated with the app and their activation
  33 // order. Instances are owned by ash::ShelfItemDelegateManager.
  34 //
  35 // Tests are in chrome_launcher_controller_browsertest.cc
  36 class AppWindowLauncherItemController : public LauncherItemController,
  37                                         public aura::WindowObserver {
  38  public:
  39   AppWindowLauncherItemController(Type type,
  40                                   const std::string& app_shelf_id,
  41                                   const std::string& app_id,
  42                                   ChromeLauncherController* controller);
  43
  44   ~AppWindowLauncherItemController() override;
  45
  46   void AddAppWindow(extensions::AppWindow* app_window,
  47                     ash::ShelfItemStatus status);
  48
  49   void RemoveAppWindowForWindow(aura::Window* window);
  50
  51   void SetActiveWindow(aura::Window* window);
  52
  53   const std::string& app_shelf_id() const { return app_shelf_id_; }
  54
  55   // LauncherItemController overrides:
  56   bool IsOpen() const override;
  57   bool IsVisible() const override;
  58   void Launch(ash::LaunchSource source, int event_flags) override;
  59   ash::ShelfItemDelegate::PerformedAction Activate(
  60       ash::LaunchSource source) override;
  61   ChromeLauncherAppMenuItems GetApplicationList(int event_flags) override;
  62   ash::ShelfItemDelegate::PerformedAction ItemSelected(
  63       const ui::Event& eent) override;
  64   base::string16 GetTitle() override;
  65   ui::MenuModel* CreateContextMenu(aura::Window* root_window) override;
  66   ash::ShelfMenuModel* CreateApplicationMenu(int event_flags) override;
  67   bool IsDraggable() override;
  68   bool ShouldShowTooltip() override;
  69   void Close() override;
  70
  71   // aura::WindowObserver overrides:
  72   void OnWindowPropertyChanged(aura::Window* window,
  73                                const void* key,
  74                                intptr_t old) override;
  75
  76   // Get the number of running applications/incarnations of this.
  77   size_t app_window_count() const { return app_windows_.size(); }
  78
  79   // Activates the window at position |index|.
  80   void ActivateIndexedApp(size_t index);
  81
  82  private:
  83   typedef std::list<extensions::AppWindow*> AppWindowList;
  84
  85   // Returns the action performed. Should be one of kNoAction,
  86   // kExistingWindowActivated, or kExistingWindowMinimized.
  87   ash::ShelfItemDelegate::PerformedAction ShowAndActivateOrMinimize(
  88       extensions::AppWindow* app_window);
  89
  90   // Activate the given |window_to_show|, or - if already selected - advance to
  91   // the next window of similar type.
  92   // Returns the action performed. Should be one of kNoAction,
  93   // kExistingWindowActivated, or kExistingWindowMinimized.
  94   ash::ShelfItemDelegate::PerformedAction ActivateOrAdvanceToNextAppWindow(
  95       extensions::AppWindow* window_to_show);
  96
  97   // List of associated app windows
  98   AppWindowList app_windows_;
  99
 100   // Pointer to the most recently active app window
 101   extensions::AppWindow* last_active_app_window_;
 102
 103   // The launcher id associated with this set of windows. There is one
 104   // AppLauncherItemController for each |app_shelf_id_|.
 105   const std::string app_shelf_id_;
 106
 107   // Scoped list of observed windows (for removal on destruction)
 108   ScopedObserver<aura::Window, aura::WindowObserver> observed_windows_;
 109
 110   DISALLOW_COPY_AND_ASSIGN(AppWindowLauncherItemController);
 111 };
 112
 113 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_APP_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_