ui/app_list/views/contents_view.h

   1 // Copyright (c) 2012 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_CONTENTS_VIEW_H_
   6 #define UI_APP_LIST_VIEWS_CONTENTS_VIEW_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "ui/views/view.h"
  12
  13 namespace content {
  14 class WebContents;
  15 }
  16
  17 namespace views {
  18 class BoundsAnimator;
  19 class ViewModel;
  20 }
  21
  22 namespace app_list {
  23
  24 class AppsGridView;
  25 class ApplicationDragAndDropHost;
  26 class AppListFolderItem;
  27 class AppListMainView;
  28 class AppListModel;
  29 class AppListViewDelegate;
  30 class AppsContainerView;
  31 class PaginationModel;
  32
  33 // A view to manage sub views under the search box (apps grid view + page
  34 // switcher and search results). The two sets of sub views are mutually
  35 // exclusive. ContentsView manages a show state to choose one set to show
  36 // and animates the transition between show states.
  37 class ContentsView : public views::View {
  38  public:
  39   ContentsView(AppListMainView* app_list_main_view,
  40                PaginationModel* pagination_model,
  41                AppListModel* model,
  42                AppListViewDelegate* view_delegate);
  43   virtual ~ContentsView();
  44
  45   // The app list gets closed and drag and drop operations need to be cancelled.
  46   void CancelDrag();
  47
  48   // If |drag_and_drop| is not NULL it will be called upon drag and drop
  49   // operations outside the application list.
  50   void SetDragAndDropHostOfCurrentAppList(
  51       ApplicationDragAndDropHost* drag_and_drop_host);
  52
  53   void ShowSearchResults(bool show);
  54   void ShowFolderContent(AppListFolderItem* folder);
  55   void CancelAutoLaunch();
  56
  57   void Prerender();
  58
  59   AppsContainerView* apps_container_view() { return apps_container_view_; }
  60
  61   // Overridden from views::View:
  62   virtual gfx::Size GetPreferredSize() OVERRIDE;
  63   virtual void Layout() OVERRIDE;
  64   virtual bool OnKeyPressed(const ui::KeyEvent& event) OVERRIDE;
  65   virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE;
  66
  67  private:
  68   enum ShowState {
  69     SHOW_APPS,
  70     SHOW_SEARCH_RESULTS,
  71   };
  72
  73   // Sets show state.
  74   void SetShowState(ShowState show_state);
  75
  76   // Invoked when show state is changed.
  77   void ShowStateChanged();
  78
  79   void CalculateIdealBounds();
  80   void AnimateToIdealBounds();
  81
  82   // Overridden from ui::EventHandler:
  83   virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
  84   virtual void OnScrollEvent(ui::ScrollEvent* event) OVERRIDE;
  85
  86   ShowState show_state_;
  87   PaginationModel* pagination_model_;  // Owned by AppListController.
  88
  89   AppsContainerView* apps_container_view_;  // Owned by the views hierarchy.
  90
  91   AppListViewDelegate* view_delegate_;  // Owned by AppListView
  92
  93   scoped_ptr<views::ViewModel> view_model_;
  94   scoped_ptr<views::BoundsAnimator> bounds_animator_;
  95
  96   DISALLOW_COPY_AND_ASSIGN(ContentsView);
  97 };
  98
  99 }  // namespace app_list
 100
 101 #endif  // UI_APP_LIST_VIEWS_CONTENTS_VIEW_H_