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      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_FOLDER_VIEW_H_
      6 #define UI_APP_LIST_VIEWS_APP_LIST_FOLDER_VIEW_H_
      7 
      8 #include <string>
      9 
     10 #include "ui/app_list/app_list_item_list_observer.h"
     11 #include "ui/app_list/views/apps_grid_view.h"
     12 #include "ui/app_list/views/apps_grid_view_folder_delegate.h"
     13 #include "ui/app_list/views/folder_header_view.h"
     14 #include "ui/app_list/views/folder_header_view_delegate.h"
     15 #include "ui/compositor/layer_animation_observer.h"
     16 #include "ui/views/controls/button/button.h"
     17 #include "ui/views/view.h"
     18 
     19 namespace views {
     20 class ViewModel;
     21 }
     22 
     23 namespace app_list {
     24 
     25 class AppsContainerView;
     26 class AppsGridView;
     27 class AppListFolderItem;
     28 class AppListItemView;
     29 class AppListMainView;
     30 class AppListModel;
     31 class FolderHeaderView;
     32 
     33 class AppListFolderView : public views::View,
     34                           public FolderHeaderViewDelegate,
     35                           public AppListModelObserver,
     36                           public ui::ImplicitAnimationObserver,
     37                           public AppsGridViewFolderDelegate {
     38  public:
     39   AppListFolderView(AppsContainerView* container_view,
     40                     AppListModel* model,
     41                     AppListMainView* app_list_main_view);
     42   virtual ~AppListFolderView();
     43 
     44   void SetAppListFolderItem(AppListFolderItem* folder);
     45 
     46   // Schedules an animation to show or hide the view.
     47   // If |show| is false, the view should be set to invisible after the
     48   // animation is done unless |hide_for_reparent| is true.
     49   void ScheduleShowHideAnimation(bool show, bool hide_for_reparent);
     50 
     51   // Gets icon image bounds of the item at |index|, relative to
     52   // AppListFolderView.
     53   gfx::Rect GetItemIconBoundsAt(int index);
     54 
     55   void UpdateFolderNameVisibility(bool visible);
     56 
     57   // Hides the view immediately without animation.
     58   void HideViewImmediately();
     59 
     60   // Closes the folder page and goes back the top level page.
     61   void CloseFolderPage();
     62 
     63   // views::View
     64   virtual gfx::Size GetPreferredSize() const OVERRIDE;
     65   virtual void Layout() OVERRIDE;
     66   virtual bool OnKeyPressed(const ui::KeyEvent& event) OVERRIDE;
     67 
     68   // AppListModelObserver
     69   virtual void OnAppListItemWillBeDeleted(AppListItem* item) OVERRIDE;
     70 
     71   // ui::ImplicitAnimationObserver
     72   virtual void OnImplicitAnimationsCompleted() OVERRIDE;
     73 
     74   AppsGridView* items_grid_view() { return items_grid_view_; }
     75 
     76  private:
     77   void CalculateIdealBounds();
     78 
     79   // Starts setting up drag in root level apps grid view for re-parenting a
     80   // folder item.
     81   // |drag_point_in_root_grid| is in the cooridnates of root level AppsGridView.
     82   void StartSetupDragInRootLevelAppsGridView(
     83       AppListItemView* original_drag_view,
     84       const gfx::Point& drag_point_in_root_grid);
     85 
     86   // Overridden from views::View:
     87   virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE;
     88 
     89   // Overridden from FolderHeaderViewDelegate:
     90   virtual void NavigateBack(AppListFolderItem* item,
     91                             const ui::Event& event_flags) OVERRIDE;
     92   virtual void GiveBackFocusToSearchBox() OVERRIDE;
     93   virtual void SetItemName(AppListFolderItem* item,
     94                            const std::string& name) OVERRIDE;
     95 
     96   // Overridden from AppsGridViewFolderDelegate:
     97   virtual void UpdateFolderViewBackground(bool show_bubble) OVERRIDE;
     98   virtual void ReparentItem(AppListItemView* original_drag_view,
     99                             const gfx::Point& drag_point_in_folder_grid)
    100       OVERRIDE;
    101   virtual void DispatchDragEventForReparent(
    102       AppsGridView::Pointer pointer,
    103       const gfx::Point& drag_point_in_folder_grid) OVERRIDE;
    104   virtual void DispatchEndDragEventForReparent(
    105       bool events_forwarded_to_drag_drop_host,
    106       bool cancel_drag) OVERRIDE;
    107   virtual bool IsPointOutsideOfFolderBoundary(const gfx::Point& point) OVERRIDE;
    108   virtual bool IsOEMFolder() const OVERRIDE;
    109   virtual void SetRootLevelDragViewVisible(bool visible) OVERRIDE;
    110 
    111   AppsContainerView* container_view_;  // Not owned.
    112   AppListMainView* app_list_main_view_;   // Not Owned.
    113   FolderHeaderView* folder_header_view_;  // Owned by views hierarchy.
    114   AppsGridView* items_grid_view_;  // Owned by the views hierarchy.
    115 
    116   scoped_ptr<views::ViewModel> view_model_;
    117 
    118   AppListModel* model_;  // Not owned.
    119   AppListFolderItem* folder_item_;  // Not owned.
    120 
    121   bool hide_for_reparent_;
    122 
    123   base::string16 accessible_name_;
    124 
    125   DISALLOW_COPY_AND_ASSIGN(AppListFolderView);
    126 };
    127 
    128 }  // namespace app_list
    129 
    130 #endif  // UI_APP_LIST_VIEWS_APP_LIST_FOLDER_VIEW_H_
    131