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      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   virtual ~AppWindowLauncherItemController();
     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   virtual bool IsOpen() const OVERRIDE;
     57   virtual bool IsVisible() const OVERRIDE;
     58   virtual void Launch(ash::LaunchSource source, int event_flags) OVERRIDE;
     59   virtual bool Activate(ash::LaunchSource source) OVERRIDE;
     60   virtual ChromeLauncherAppMenuItems GetApplicationList(int event_flags)
     61       OVERRIDE;
     62   virtual bool ItemSelected(const ui::Event& eent) OVERRIDE;
     63   virtual base::string16 GetTitle() OVERRIDE;
     64   virtual ui::MenuModel* CreateContextMenu(aura::Window* root_window) OVERRIDE;
     65   virtual ash::ShelfMenuModel* CreateApplicationMenu(int event_flags) OVERRIDE;
     66   virtual bool IsDraggable() OVERRIDE;
     67   virtual bool ShouldShowTooltip() OVERRIDE;
     68   virtual void Close() OVERRIDE;
     69 
     70   // aura::WindowObserver overrides:
     71   virtual void OnWindowPropertyChanged(aura::Window* window,
     72                                        const void* key,
     73                                        intptr_t old) OVERRIDE;
     74 
     75   // Get the number of running applications/incarnations of this.
     76   size_t app_window_count() const { return app_windows_.size(); }
     77 
     78   // Activates the window at position |index|.
     79   void ActivateIndexedApp(size_t index);
     80 
     81   // Install the app. Only valid for ephemeral apps, which can be promoted to
     82   // regular installed apps.
     83   void InstallApp();
     84 
     85  private:
     86   typedef std::list<extensions::AppWindow*> AppWindowList;
     87 
     88   void ShowAndActivateOrMinimize(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   void ActivateOrAdvanceToNextAppWindow(extensions::AppWindow* window_to_show);
     93 
     94   // List of associated app windows
     95   AppWindowList app_windows_;
     96 
     97   // Pointer to the most recently active app window
     98   extensions::AppWindow* last_active_app_window_;
     99 
    100   // The launcher id associated with this set of windows. There is one
    101   // AppLauncherItemController for each |app_shelf_id_|.
    102   const std::string app_shelf_id_;
    103 
    104   // Scoped list of observed windows (for removal on destruction)
    105   ScopedObserver<aura::Window, aura::WindowObserver> observed_windows_;
    106 
    107   DISALLOW_COPY_AND_ASSIGN(AppWindowLauncherItemController);
    108 };
    109 
    110 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_APP_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_
    111