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 ContentsView;
  30 class PaginationModel;
  31 class SearchBoxView;
  32
  33 // AppListMainView contains the normal view of the app list, which is shown
  34 // when the user is signed in.
  35 class APP_LIST_EXPORT AppListMainView : public views::View,
  36                                         public AppsGridViewDelegate,
  37                                         public SearchBoxViewDelegate,
  38                                         public SearchResultListViewDelegate {
  39  public:
  40   // Takes ownership of |delegate|.
  41   explicit AppListMainView(AppListViewDelegate* delegate,
  42                            PaginationModel* pagination_model,
  43                            gfx::NativeView parent);
  44   virtual ~AppListMainView();
  45
  46   void ShowAppListWhenReady();
  47
  48   void ResetForShow();
  49
  50   void Close();
  51
  52   void Prerender();
  53
  54   void ModelChanged();
  55
  56   void OnContentsViewShowStateChanged();
  57
  58   void OnStartPageSearchButtonPressed();
  59
  60   SearchBoxView* search_box_view() const { return search_box_view_; }
  61
  62   // If |drag_and_drop_host| is not NULL it will be called upon drag and drop
  63   // operations outside the application list.
  64   void SetDragAndDropHostOfCurrentAppList(
  65       ApplicationDragAndDropHost* drag_and_drop_host);
  66
  67   ContentsView* contents_view() const { return contents_view_; }
  68
  69   // Returns true if the app list should be centered and in landscape mode.
  70   bool ShouldCenterWindow() const;
  71
  72  private:
  73   class IconLoader;
  74
  75   void AddContentsView();
  76
  77   // Loads icon image for the apps in the selected page of |pagination_model_|.
  78   // |parent| is used to determine the image scale factor to use.
  79   void PreloadIcons(gfx::NativeView parent);
  80
  81   // Invoked when |icon_loading_wait_timer_| fires.
  82   void OnIconLoadingWaitTimer();
  83
  84   // Invoked from an IconLoader when icon loading is finished.
  85   void OnItemIconLoaded(IconLoader* loader);
  86
  87   // Overridden from views::View:
  88   virtual void ChildVisibilityChanged(views::View* child) OVERRIDE;
  89
  90   // Overridden from AppsGridViewDelegate:
  91   virtual void ActivateApp(AppListItem* item, int event_flags) OVERRIDE;
  92   virtual void GetShortcutPathForApp(
  93       const std::string& app_id,
  94       const base::Callback<void(const base::FilePath&)>& callback) OVERRIDE;
  95
  96   // Overridden from SearchBoxViewDelegate:
  97   virtual void QueryChanged(SearchBoxView* sender) OVERRIDE;
  98
  99   // Overridden from SearchResultListViewDelegate:
 100   virtual void OnResultInstalled(SearchResult* result) OVERRIDE;
 101   virtual void OnResultUninstalled(SearchResult* result) OVERRIDE;
 102
 103   AppListViewDelegate* delegate_;  // Owned by parent view (AppListView).
 104   PaginationModel* pagination_model_;  // Owned by AppListController.
 105   AppListModel* model_;  // Unowned; ownership is handled by |delegate_|.
 106
 107   SearchBoxView* search_box_view_;  // Owned by views hierarchy.
 108   ContentsView* contents_view_;  // Owned by views hierarchy.
 109
 110   // A timer that fires when maximum allowed time to wait for icon loading has
 111   // passed.
 112   base::OneShotTimer<AppListMainView> icon_loading_wait_timer_;
 113
 114   ScopedVector<IconLoader> pending_icon_loaders_;
 115
 116   base::WeakPtrFactory<AppListMainView> weak_ptr_factory_;
 117
 118   DISALLOW_COPY_AND_ASSIGN(AppListMainView);
 119 };
 120
 121 }  // namespace app_list
 122
 123 #endif  // UI_APP_LIST_VIEWS_APP_LIST_MAIN_VIEW_H_