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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 ShellWindowLauncherController.
     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
     58   virtual string16 GetTitle() OVERRIDE;
     59   virtual bool HasWindow(aura::Window* window) const OVERRIDE;
     60   virtual bool IsOpen() const OVERRIDE;
     61   virtual bool IsVisible() const OVERRIDE;
     62   virtual void Launch(int event_flags) OVERRIDE;
     63   virtual void Activate() OVERRIDE;
     64   virtual void Close() OVERRIDE;
     65   virtual void Clicked(const ui::Event& event) OVERRIDE;
     66   virtual void OnRemoved() OVERRIDE {}
     67   virtual void LauncherItemChanged(
     68       int model_index,
     69       const ash::LauncherItem& old_item) OVERRIDE {}
     70   virtual ChromeLauncherAppMenuItems GetApplicationList(
     71       int event_flags) OVERRIDE;
     72 
     73   // aura::WindowObserver
     74   virtual void OnWindowPropertyChanged(aura::Window* window,
     75                                        const void* key,
     76                                        intptr_t old) OVERRIDE;
     77 
     78   // Get the number of running applications/incarnations of this.
     79   size_t shell_window_count() const { return shell_windows_.size(); }
     80 
     81   // Activates the window at position |index|.
     82   void ActivateIndexedApp(size_t index);
     83 
     84  private:
     85   typedef std::list<apps::ShellWindow*> ShellWindowList;
     86 
     87   void ShowAndActivateOrMinimize(apps::ShellWindow* shell_window);
     88 
     89   // Activate the given |window_to_show|, or - if already selected - advance to
     90   // the next window of similar type.
     91   void ActivateOrAdvanceToNextShellWindow(apps::ShellWindow* window_to_show);
     92 
     93   // List of associated shell windows
     94   ShellWindowList shell_windows_;
     95 
     96   // Pointer to the most recently active shell window
     97   apps::ShellWindow* last_active_shell_window_;
     98 
     99   // The launcher id associated with this set of windows. There is one
    100   // AppLauncherItemController for each |app_launcher_id_|.
    101   const std::string app_launcher_id_;
    102 
    103   // Scoped list of observed windows (for removal on destruction)
    104   ScopedObserver<aura::Window, aura::WindowObserver> observed_windows_;
    105 
    106   DISALLOW_COPY_AND_ASSIGN(ShellWindowLauncherItemController);
    107 };
    108 
    109 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_SHELL_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_
    110