src/ui/app_list/views/apps_container_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_APPS_CONTAINER_VIEW_H_
   6 #define UI_APP_LIST_VIEWS_APPS_CONTAINER_VIEW_H_
   7
   8 #include "ui/app_list/app_list_folder_item.h"
   9 #include "ui/app_list/views/top_icon_animation_view.h"
  10 #include "ui/views/view.h"
  11
  12 namespace content {
  13 class WebContents;
  14 }
  15
  16 namespace app_list {
  17
  18 class AppsGridView;
  19 class ApplicationDragAndDropHost;
  20 class AppListFolderItem;
  21 class AppListFolderView;
  22 class AppListMainView;
  23 class AppListModel;
  24 class ContentsView;
  25 class FolderBackgroundView;
  26 class PaginationModel;
  27
  28 // AppsContainerView contains a root level AppsGridView to render the root level
  29 // app items, and a AppListFolderView to render the app items inside the
  30 // active folder. Only one if them is visible to user at any time.
  31 class AppsContainerView : public views::View,
  32                           public TopIconAnimationObserver {
  33  public:
  34   AppsContainerView(AppListMainView* app_list_main_view,
  35                     PaginationModel* pagination_model,
  36                     AppListModel* model,
  37                     content::WebContents* start_page_contents);
  38   virtual ~AppsContainerView();
  39
  40   // Shows the active folder content specified by |folder_item|.
  41   void ShowActiveFolder(AppListFolderItem* folder_item);
  42
  43   // Shows the root level apps list. This is called when UI navigate back from
  44   // a folder view with |folder_item|. If |folder_item| is NULL skips animation.
  45   void ShowApps(AppListFolderItem* folder_item);
  46
  47   // Sets |drag_and_drop_host_| for the current app list in both
  48   // app_list_folder_view_ and root level apps_grid_view_.
  49   void SetDragAndDropHostOfCurrentAppList(
  50       ApplicationDragAndDropHost* drag_and_drop_host);
  51
  52   // Transits the UI from folder view to root lelve apps grid view when
  53   // re-parenting a child item of |folder_item|.
  54   void ReparentFolderItemTransit(AppListFolderItem* folder_item);
  55
  56   // views::View overrides:
  57   virtual gfx::Size GetPreferredSize() OVERRIDE;
  58   virtual void Layout() OVERRIDE;
  59   virtual bool OnKeyPressed(const ui::KeyEvent& event) OVERRIDE;
  60
  61   // TopIconAnimationObserver overrides:
  62   virtual void OnTopIconAnimationsComplete() OVERRIDE;
  63
  64   AppsGridView* apps_grid_view() { return apps_grid_view_; }
  65   FolderBackgroundView* folder_background_view() {
  66      return folder_background_view_;
  67   }
  68   AppListFolderView* app_list_folder_view() { return app_list_folder_view_; }
  69
  70  private:
  71   enum ShowState {
  72     SHOW_APPS,
  73     SHOW_ACTIVE_FOLDER,
  74     SHOW_ITEM_REPARENT,
  75   };
  76
  77   void SetShowState(ShowState show_state, bool show_apps_with_animation);
  78
  79   // Calculates the top item icon bounds in the active folder icon. The bounds
  80   // is relative to AppsContainerView.
  81   // Returns the bounds of top items' icon in sequence of top left, top right,
  82   // bottom left, bottom right.
  83   Rects GetTopItemIconBoundsInActiveFolder();
  84
  85   // Creates the transitional views for animating the top items in the folder
  86   // when opening or closing a folder.
  87   void CreateViewsForFolderTopItemsAnimation(
  88       AppListFolderItem* active_folder, bool open_folder);
  89
  90   void PrepareToShowApps(AppListFolderItem* folder_item);
  91
  92   AppListModel* model_;
  93   AppsGridView* apps_grid_view_;  // Owned by views hierarchy.
  94   AppListFolderView* app_list_folder_view_;  // Owned by views hierarchy.
  95   FolderBackgroundView* folder_background_view_;  // Owned by views hierarchy.
  96   ShowState show_state_;
  97
  98   // The transitional views for animating the top items in folder
  99   // when opening or closing a folder.
 100   std::vector<views::View*> top_icon_views_;
 101
 102   size_t top_icon_animation_pending_count_;
 103
 104   DISALLOW_COPY_AND_ASSIGN(AppsContainerView);
 105 };
 106
 107 }  // namespace app_list
 108
 109
 110 #endif  // UI_APP_LIST_VIEWS_APPS_CONTAINER_VIEW_H_