ui/app_list/views/search_box_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_SEARCH_BOX_VIEW_H_
   6 #define UI_APP_LIST_VIEWS_SEARCH_BOX_VIEW_H_
   7
   8 #include <string>
   9
  10 #include "ui/app_list/search_box_model_observer.h"
  11 #include "ui/views/controls/button/menu_button_listener.h"
  12 #include "ui/views/controls/textfield/textfield_controller.h"
  13 #include "ui/views/view.h"
  14
  15 namespace views {
  16 class ImageView;
  17 class MenuButton;
  18 class Textfield;
  19 }  // namespace views
  20
  21 namespace app_list {
  22
  23 class AppListMenuViews;
  24 class AppListModel;
  25 class AppListViewDelegate;
  26 class SearchBoxModel;
  27 class SearchBoxViewDelegate;
  28
  29 // SearchBoxView consists of an icon and a Textfield. SearchBoxModel is its data
  30 // model that controls what icon to display, what placeholder text to use for
  31 // Textfield. The text and selection model part could be set to change the
  32 // contents and selection model of the Textfield.
  33 class SearchBoxView : public views::View,
  34                       public views::TextfieldController,
  35                       public views::MenuButtonListener,
  36                       public SearchBoxModelObserver {
  37  public:
  38   SearchBoxView(SearchBoxViewDelegate* delegate,
  39                 AppListViewDelegate* view_delegate,
  40                 AppListModel* model);
  41   virtual ~SearchBoxView();
  42
  43   bool HasSearch() const;
  44   void ClearSearch();
  45   void InvalidateMenu();
  46
  47   views::Textfield* search_box() { return search_box_; }
  48
  49   void set_contents_view(View* contents_view) {
  50     contents_view_ = contents_view;
  51   }
  52
  53   // Overridden from views::View:
  54   virtual gfx::Size GetPreferredSize() OVERRIDE;
  55   virtual void Layout() OVERRIDE;
  56   virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE;
  57
  58  private:
  59   // Updates model text and selection model with current Textfield info.
  60   void UpdateModel();
  61
  62   // Fires query change notification.
  63   void NotifyQueryChanged();
  64
  65   // Overridden from views::TextfieldController:
  66   virtual void ContentsChanged(views::Textfield* sender,
  67                                const base::string16& new_contents) OVERRIDE;
  68   virtual bool HandleKeyEvent(views::Textfield* sender,
  69                               const ui::KeyEvent& key_event) OVERRIDE;
  70
  71   // Overridden from views::MenuButtonListener:
  72   virtual void OnMenuButtonClicked(View* source,
  73                                    const gfx::Point& point) OVERRIDE;
  74
  75   // Overridden from SearchBoxModelObserver:
  76   virtual void IconChanged() OVERRIDE;
  77   virtual void HintTextChanged() OVERRIDE;
  78   virtual void SelectionModelChanged() OVERRIDE;
  79   virtual void TextChanged() OVERRIDE;
  80
  81   SearchBoxViewDelegate* delegate_;  // Not owned.
  82   AppListViewDelegate* view_delegate_;  // Not owned.
  83   AppListModel* model_;  // Owned by AppListView.
  84
  85   scoped_ptr<AppListMenuViews> menu_;
  86
  87   views::ImageView* icon_view_;  // Owned by views hierarchy.
  88   views::MenuButton* menu_button_;  // Owned by views hierarchy.
  89   views::Textfield* search_box_;  // Owned by views hierarchy.
  90   views::View* contents_view_;  // Owned by views hierarchy.
  91
  92   DISALLOW_COPY_AND_ASSIGN(SearchBoxView);
  93 };
  94
  95 }  // namespace app_list
  96
  97 #endif  // UI_APP_LIST_VIEWS_SEARCH_BOX_VIEW_H_