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      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_ASH_LAUNCHER_SHELL_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_
      6 #define CHROME_BROWSER_UI_ASH_LAUNCHER_SHELL_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 apps {
     17 class ShellWindow;
     18 }
     19 
     20 namespace aura {
     21 class Window;
     22 }
     23 
     24 namespace gfx {
     25 class Image;
     26 }
     27 
     28 class ChromeLauncherController;
     29 
     30 // This is a ShellWindowItemLauncherController for shell windows. There is one
     31 // instance per app, per launcher id.
     32 // For apps with multiple windows, each item controller keeps track of all
     33 // windows associated with the app and their activation order.
     34 // Instances are owned by ash::ShelfItemDelegateManager.
     35 //
     36 // Tests are in chrome_launcher_controller_browsertest.cc
     37 
     38 class ShellWindowLauncherItemController : public LauncherItemController,
     39                                           public aura::WindowObserver {
     40  public:
     41   ShellWindowLauncherItemController(Type type,
     42                                     const std::string& app_launcher_id,
     43                                     const std::string& app_id,
     44                                     ChromeLauncherController* controller);
     45 
     46   virtual ~ShellWindowLauncherItemController();
     47 
     48   void AddShellWindow(apps::ShellWindow* shell_window,
     49                       ash::LauncherItemStatus status);
     50 
     51   void RemoveShellWindowForWindow(aura::Window* window);
     52 
     53   void SetActiveWindow(aura::Window* window);
     54 
     55   const std::string& app_launcher_id() const { return app_launcher_id_; }
     56 
     57   // LauncherItemController overrides:
     58   virtual bool IsOpen() const OVERRIDE;
     59   virtual bool IsVisible() const OVERRIDE;
     60   virtual void Launch(ash::LaunchSource source, int event_flags) OVERRIDE;
     61   virtual bool Activate(ash::LaunchSource source) OVERRIDE;
     62   virtual void Close() OVERRIDE;
     63   virtual ChromeLauncherAppMenuItems GetApplicationList(
     64       int event_flags) OVERRIDE;
     65   virtual bool ItemSelected(const ui::Event& eent) OVERRIDE;
     66   virtual base::string16 GetTitle() OVERRIDE;
     67   virtual ui::MenuModel* CreateContextMenu(aura::Window* root_window) OVERRIDE;
     68   virtual ash::ShelfMenuModel* CreateApplicationMenu(int event_flags) OVERRIDE;
     69   virtual bool IsDraggable() OVERRIDE;
     70   virtual bool ShouldShowTooltip() OVERRIDE;
     71 
     72   // aura::WindowObserver overrides:
     73   virtual void OnWindowPropertyChanged(aura::Window* window,
     74                                        const void* key,
     75                                        intptr_t old) OVERRIDE;
     76 
     77   // Get the number of running applications/incarnations of this.
     78   size_t shell_window_count() const { return shell_windows_.size(); }
     79 
     80   // Activates the window at position |index|.
     81   void ActivateIndexedApp(size_t index);
     82 
     83  private:
     84   typedef std::list<apps::ShellWindow*> ShellWindowList;
     85 
     86   void ShowAndActivateOrMinimize(apps::ShellWindow* shell_window);
     87 
     88   // Activate the given |window_to_show|, or - if already selected - advance to
     89   // the next window of similar type.
     90   void ActivateOrAdvanceToNextShellWindow(apps::ShellWindow* window_to_show);
     91 
     92   // List of associated shell windows
     93   ShellWindowList shell_windows_;
     94 
     95   // Pointer to the most recently active shell window
     96   apps::ShellWindow* last_active_shell_window_;
     97 
     98   // The launcher id associated with this set of windows. There is one
     99   // AppLauncherItemController for each |app_launcher_id_|.
    100   const std::string app_launcher_id_;
    101 
    102   // Scoped list of observed windows (for removal on destruction)
    103   ScopedObserver<aura::Window, aura::WindowObserver> observed_windows_;
    104 
    105   DISALLOW_COPY_AND_ASSIGN(ShellWindowLauncherItemController);
    106 };
    107 
    108 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_SHELL_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_
    109