src/ui/app_list/views/app_list_view.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 UI_APP_LIST_VIEWS_APP_LIST_VIEW_H_
   6 #define UI_APP_LIST_VIEWS_APP_LIST_VIEW_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/observer_list.h"
  10 #include "ui/app_list/app_list_export.h"
  11 #include "ui/app_list/app_list_view_delegate_observer.h"
  12 #include "ui/app_list/speech_ui_model_observer.h"
  13 #include "ui/views/bubble/bubble_delegate.h"
  14 #include "ui/views/widget/widget.h"
  15
  16 namespace base {
  17 class FilePath;
  18 }
  19
  20 namespace app_list {
  21 class ApplicationDragAndDropHost;
  22 class AppListMainView;
  23 class AppListModel;
  24 class AppListViewDelegate;
  25 class AppListViewObserver;
  26 class HideViewAnimationObserver;
  27 class PaginationModel;
  28 class SigninDelegate;
  29 class SigninView;
  30 class SpeechView;
  31
  32 // AppListView is the top-level view and controller of app list UI. It creates
  33 // and hosts a AppsGridView and passes AppListModel to it for display.
  34 class APP_LIST_EXPORT AppListView : public views::BubbleDelegateView,
  35                                     public AppListViewDelegateObserver,
  36                                     public SpeechUIModelObserver {
  37  public:
  38   // Takes ownership of |delegate|.
  39   explicit AppListView(AppListViewDelegate* delegate);
  40   virtual ~AppListView();
  41
  42   // Initializes the widget and use a given |anchor| plus an |anchor_offset| for
  43   // positioning.
  44   void InitAsBubbleAttachedToAnchor(gfx::NativeView parent,
  45                                     PaginationModel* pagination_model,
  46                                     views::View* anchor,
  47                                     const gfx::Vector2d& anchor_offset,
  48                                     views::BubbleBorder::Arrow arrow,
  49                                     bool border_accepts_events);
  50
  51   // Initializes the widget and use a fixed |anchor_point_in_screen| for
  52   // positioning.
  53   void InitAsBubbleAtFixedLocation(gfx::NativeView parent,
  54                                    PaginationModel* pagination_model,
  55                                    const gfx::Point& anchor_point_in_screen,
  56                                    views::BubbleBorder::Arrow arrow,
  57                                    bool border_accepts_events);
  58
  59   void SetBubbleArrow(views::BubbleBorder::Arrow arrow);
  60
  61   void SetAnchorPoint(const gfx::Point& anchor_point);
  62
  63   // If |drag_and_drop_host| is not NULL it will be called upon drag and drop
  64   // operations outside the application list. This has to be called after
  65   // InitAsBubble was called since the app list object needs to exist so that
  66   // it can set the host.
  67   void SetDragAndDropHostOfCurrentAppList(
  68       ApplicationDragAndDropHost* drag_and_drop_host);
  69
  70   // Shows the UI when there are no pending icon loads. Otherwise, starts a
  71   // timer to show the UI when a maximum allowed wait time has expired.
  72   void ShowWhenReady();
  73
  74   void Close();
  75
  76   void UpdateBounds();
  77
  78   // Returns true if the app list should be centered and in landscape mode.
  79   bool ShouldCenterWindow() const;
  80
  81   // Overridden from views::View:
  82   virtual gfx::Size GetPreferredSize() OVERRIDE;
  83   virtual void Paint(gfx::Canvas* canvas) OVERRIDE;
  84   virtual void OnThemeChanged() OVERRIDE;
  85
  86   // WidgetDelegate overrides:
  87   virtual bool ShouldHandleSystemCommands() const OVERRIDE;
  88
  89   // Overridden from AppListViewDelegateObserver:
  90   virtual void OnProfilesChanged() OVERRIDE;
  91
  92   void Prerender();
  93
  94   void SetProfileByPath(const base::FilePath& profile_path);
  95
  96   void AddObserver(AppListViewObserver* observer);
  97   void RemoveObserver(AppListViewObserver* observer);
  98
  99   // Set a callback to be called the next time any app list paints.
 100   static void SetNextPaintCallback(void (*callback)());
 101
 102 #if defined(OS_WIN)
 103   HWND GetHWND() const;
 104 #endif
 105
 106   AppListMainView* app_list_main_view() { return app_list_main_view_; }
 107
 108  private:
 109   void InitAsBubbleInternal(gfx::NativeView parent,
 110                             PaginationModel* pagination_model,
 111                             views::BubbleBorder::Arrow arrow,
 112                             bool border_accepts_events,
 113                             const gfx::Vector2d& anchor_offset);
 114
 115   // Overridden from views::BubbleDelegateView:
 116   virtual void OnBeforeBubbleWidgetInit(
 117       views::Widget::InitParams* params,
 118       views::Widget* widget) const OVERRIDE;
 119
 120   // Overridden from views::WidgetDelegateView:
 121   virtual views::View* GetInitiallyFocusedView() OVERRIDE;
 122   virtual gfx::ImageSkia GetWindowIcon() OVERRIDE;
 123   virtual bool WidgetHasHitTestMask() const OVERRIDE;
 124   virtual void GetWidgetHitTestMask(gfx::Path* mask) const OVERRIDE;
 125
 126   // Overridden from views::View:
 127   virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE;
 128   virtual void Layout() OVERRIDE;
 129   virtual void SchedulePaintInRect(const gfx::Rect& rect) OVERRIDE;
 130
 131   // Overridden from views::WidgetObserver:
 132   virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE;
 133   virtual void OnWidgetVisibilityChanged(
 134       views::Widget* widget, bool visible) OVERRIDE;
 135   virtual void OnWidgetActivationChanged(
 136       views::Widget* widget, bool active) OVERRIDE;
 137
 138   // Overridden from SpeechUIModelObserver:
 139   virtual void OnSpeechRecognitionStateChanged(
 140       SpeechRecognitionState new_state) OVERRIDE;
 141
 142   SigninDelegate* GetSigninDelegate();
 143
 144   scoped_ptr<AppListViewDelegate> delegate_;
 145
 146   AppListMainView* app_list_main_view_;
 147   SigninView* signin_view_;
 148   SpeechView* speech_view_;
 149
 150   ObserverList<AppListViewObserver> observers_;
 151   scoped_ptr<HideViewAnimationObserver> animation_observer_;
 152
 153   DISALLOW_COPY_AND_ASSIGN(AppListView);
 154 };
 155
 156 }  // namespace app_list
 157
 158 #endif  // UI_APP_LIST_VIEWS_APP_LIST_VIEW_H_