ash/wm/workspace_controller.h

   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 ASH_WM_WORKSPACE_CONTROLLER_H_
   6 #define ASH_WM_WORKSPACE_CONTROLLER_H_
   7 #pragma once
   8
   9 #include "ash/ash_export.h"
  10 #include "base/basictypes.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "ui/aura/root_window_observer.h"
  13 #include "ui/aura/window_observer.h"
  14 #include "ui/base/models/simple_menu_model.h"
  15
  16 namespace aura {
  17 class Window;
  18 }
  19
  20 namespace gfx {
  21 class Point;
  22 class Size;
  23 }
  24
  25 namespace views {
  26 class MenuRunner;
  27 class Widget;
  28 }
  29
  30 namespace ash {
  31 namespace internal {
  32
  33 class WorkspaceEventFilter;
  34 class WorkspaceLayoutManager;
  35 class WorkspaceManager;
  36
  37 // WorkspaceController acts as a central place that ties together all the
  38 // various workspace pieces: WorkspaceManager, WorkspaceLayoutManager and
  39 // WorkspaceEventFilter.
  40 class ASH_EXPORT WorkspaceController :
  41       public aura::RootWindowObserver,
  42       public aura::WindowObserver,
  43       public ui::SimpleMenuModel::Delegate {
  44  public:
  45   explicit WorkspaceController(aura::Window* viewport);
  46   virtual ~WorkspaceController();
  47
  48   void ToggleOverview();
  49
  50   // Returns the workspace manager that this controler owns.
  51   WorkspaceManager* workspace_manager() {
  52     return workspace_manager_.get();
  53   }
  54
  55   // Shows the menu allowing you to configure various aspects of workspaces.
  56   void ShowMenu(views::Widget* widget, const gfx::Point& location);
  57
  58   // aura::RootWindowObserver overrides:
  59   virtual void OnRootWindowResized(const gfx::Size& new_size) OVERRIDE;
  60
  61   // aura::WindowObserver overrides:
  62   virtual void OnWindowPropertyChanged(aura::Window* window,
  63                                        const void* key,
  64                                        intptr_t old) OVERRIDE;
  65
  66   // ui::SimpleMenuModel::Delegate overrides:
  67   virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;
  68   virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE;
  69   virtual void ExecuteCommand(int command_id) OVERRIDE;
  70   virtual bool GetAcceleratorForCommandId(
  71       int command_id,
  72       ui::Accelerator* accelerator) OVERRIDE;
  73
  74  private:
  75   enum MenuItem {
  76     MENU_SNAP_TO_GRID,
  77     MENU_OPEN_MAXIMIZED,
  78   };
  79
  80   aura::Window* viewport_;
  81
  82   scoped_ptr<WorkspaceManager> workspace_manager_;
  83
  84   // Owned by the window its attached to.
  85   WorkspaceLayoutManager* layout_manager_;
  86
  87   // Owned by |viewport_|.
  88   WorkspaceEventFilter* event_filter_;
  89
  90 #if !defined(OS_MACOSX)
  91   scoped_ptr<views::MenuRunner> menu_runner_;
  92 #endif
  93
  94   DISALLOW_COPY_AND_ASSIGN(WorkspaceController);
  95 };
  96
  97 }  // namespace internal
  98 }  // namespace ash
  99
 100 #endif  // ASH_WM_WORKSPACE_CONTROLLER_H_