ui/app_list/views/app_list_main_view.h

   1 // Copyright 2013 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_MAIN_VIEW_H_
   6 #define UI_APP_LIST_VIEWS_APP_LIST_MAIN_VIEW_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/scoped_vector.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "base/timer/timer.h"
  13 #include "ui/app_list/app_list_export.h"
  14 #include "ui/app_list/views/apps_grid_view_delegate.h"
  15 #include "ui/app_list/views/search_box_view_delegate.h"
  16 #include "ui/app_list/views/search_result_list_view_delegate.h"
  17 #include "ui/views/view.h"
  18
  19 namespace views {
  20 class Widget;
  21 }
  22
  23 namespace app_list {
  24
  25 class AppListItem;
  26 class AppListModel;
  27 class AppListViewDelegate;
  28 class ApplicationDragAndDropHost;
  29 class ContentsSwitcherView;
  30 class ContentsView;
  31 class PaginationModel;
  32 class SearchBoxView;
  33
  34 // AppListMainView contains the normal view of the app list, which is shown
  35 // when the user is signed in.
  36 class APP_LIST_EXPORT AppListMainView : public views::View,
  37                                         public AppsGridViewDelegate,
  38                                         public SearchBoxViewDelegate,
  39                                         public SearchResultListViewDelegate {
  40  public:
  41   // Takes ownership of |delegate|.
  42   explicit AppListMainView(AppListViewDelegate* delegate,
  43                            int initial_apps_page,
  44                            gfx::NativeView parent);
  45   virtual ~AppListMainView();
  46
  47   void ShowAppListWhenReady();
  48
  49   void ResetForShow();
  50
  51   void Close();
  52
  53   void Prerender();
  54
  55   void ModelChanged();
  56
  57   void UpdateSearchBoxVisibility();
  58
  59   void OnStartPageSearchTextfieldChanged(const base::string16& new_contents);
  60
  61   SearchBoxView* search_box_view() const { return search_box_view_; }
  62
  63   // If |drag_and_drop_host| is not NULL it will be called upon drag and drop
  64   // operations outside the application list.
  65   void SetDragAndDropHostOfCurrentAppList(
  66       ApplicationDragAndDropHost* drag_and_drop_host);
  67
  68   ContentsView* contents_view() const { return contents_view_; }
  69   ContentsSwitcherView* contents_switcher_view() const {
  70     return contents_switcher_view_;
  71   }
  72   AppListModel* model() { return model_; }
  73
  74   // Returns true if the app list should be centered and in landscape mode.
  75   bool ShouldCenterWindow() const;
  76
  77   // Called when the search box's visibility is changed.
  78   void NotifySearchBoxVisibilityChanged();
  79
  80  private:
  81   class IconLoader;
  82
  83   // Adds the ContentsView and the ContentsSwitcherView.
  84   void AddContentsViews();
  85
  86   // Gets the PaginationModel owned by the AppsGridView.
  87   PaginationModel* GetAppsPaginationModel();
  88
  89   // Loads icon image for the apps in the selected page of |pagination_model_|.
  90   // |parent| is used to determine the image scale factor to use.
  91   void PreloadIcons(gfx::NativeView parent);
  92
  93   // Invoked when |icon_loading_wait_timer_| fires.
  94   void OnIconLoadingWaitTimer();
  95
  96   // Invoked from an IconLoader when icon loading is finished.
  97   void OnItemIconLoaded(IconLoader* loader);
  98
  99   // Overridden from AppsGridViewDelegate:
 100   virtual void ActivateApp(AppListItem* item, int event_flags) OVERRIDE;
 101   virtual void GetShortcutPathForApp(
 102       const std::string& app_id,
 103       const base::Callback<void(const base::FilePath&)>& callback) OVERRIDE;
 104   virtual void CancelDragInActiveFolder() OVERRIDE;
 105
 106   // Overridden from SearchBoxViewDelegate:
 107   virtual void QueryChanged(SearchBoxView* sender) OVERRIDE;
 108
 109   // Overridden from SearchResultListViewDelegate:
 110   virtual void OnResultInstalled(SearchResult* result) OVERRIDE;
 111   virtual void OnResultUninstalled(SearchResult* result) OVERRIDE;
 112
 113   AppListViewDelegate* delegate_;  // Owned by parent view (AppListView).
 114   AppListModel* model_;  // Unowned; ownership is handled by |delegate_|.
 115
 116   SearchBoxView* search_box_view_;  // Owned by views hierarchy.
 117   ContentsView* contents_view_;  // Owned by views hierarchy.
 118
 119   // Owned by views hierarchy. NULL in the non-experimental app list.
 120   ContentsSwitcherView* contents_switcher_view_;
 121
 122   // A timer that fires when maximum allowed time to wait for icon loading has
 123   // passed.
 124   base::OneShotTimer<AppListMainView> icon_loading_wait_timer_;
 125
 126   ScopedVector<IconLoader> pending_icon_loaders_;
 127
 128   base::WeakPtrFactory<AppListMainView> weak_ptr_factory_;
 129
 130   DISALLOW_COPY_AND_ASSIGN(AppListMainView);
 131 };
 132
 133 }  // namespace app_list
 134
 135 #endif  // UI_APP_LIST_VIEWS_APP_LIST_MAIN_VIEW_H_