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