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/app_list/speech_ui_model_observer.h"
  12 #include "ui/views/controls/button/image_button.h"
  13 #include "ui/views/controls/button/menu_button_listener.h"
  14 #include "ui/views/controls/textfield/textfield_controller.h"
  15 #include "ui/views/view.h"
  16
  17 namespace views {
  18 class ImageView;
  19 class MenuButton;
  20 class Textfield;
  21 }  // namespace views
  22
  23 namespace app_list {
  24
  25 class AppListMenuViews;
  26 class AppListModel;
  27 class AppListViewDelegate;
  28 class SearchBoxModel;
  29 class SearchBoxViewDelegate;
  30
  31 // SearchBoxView consists of an icon and a Textfield. SearchBoxModel is its data
  32 // model that controls what icon to display, what placeholder text to use for
  33 // Textfield. The text and selection model part could be set to change the
  34 // contents and selection model of the Textfield.
  35 class APP_LIST_EXPORT SearchBoxView : public views::View,
  36                                       public views::TextfieldController,
  37                                       public views::ButtonListener,
  38                                       public views::MenuButtonListener,
  39                                       public SearchBoxModelObserver,
  40                                       public SpeechUIModelObserver {
  41  public:
  42   SearchBoxView(SearchBoxViewDelegate* delegate,
  43                 AppListViewDelegate* view_delegate);
  44   virtual ~SearchBoxView();
  45
  46   void ModelChanged();
  47   bool HasSearch() const;
  48   void ClearSearch();
  49   void InvalidateMenu();
  50
  51   views::Textfield* search_box() { return search_box_; }
  52
  53   void set_contents_view(views::View* contents_view) {
  54     contents_view_ = contents_view;
  55   }
  56
  57   // Overridden from views::View:
  58   virtual gfx::Size GetPreferredSize() const OVERRIDE;
  59   virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE;
  60
  61  private:
  62   // Updates model text and selection model with current Textfield info.
  63   void UpdateModel();
  64
  65   // Fires query change notification.
  66   void NotifyQueryChanged();
  67
  68   // Overridden from views::TextfieldController:
  69   virtual void ContentsChanged(views::Textfield* sender,
  70                                const base::string16& new_contents) OVERRIDE;
  71   virtual bool HandleKeyEvent(views::Textfield* sender,
  72                               const ui::KeyEvent& key_event) OVERRIDE;
  73
  74   // Overridden from views::ButtonListener:
  75   virtual void ButtonPressed(views::Button* sender,
  76                              const ui::Event& event) OVERRIDE;
  77
  78   // Overridden from views::MenuButtonListener:
  79   virtual void OnMenuButtonClicked(View* source,
  80                                    const gfx::Point& point) OVERRIDE;
  81
  82   // Overridden from SearchBoxModelObserver:
  83   virtual void IconChanged() OVERRIDE;
  84   virtual void SpeechRecognitionButtonPropChanged() OVERRIDE;
  85   virtual void HintTextChanged() OVERRIDE;
  86   virtual void SelectionModelChanged() OVERRIDE;
  87   virtual void TextChanged() OVERRIDE;
  88
  89   // Overridden from SpeechUIModelObserver:
  90   virtual void OnSpeechRecognitionStateChanged(
  91       SpeechRecognitionState new_state) OVERRIDE;
  92
  93   SearchBoxViewDelegate* delegate_;  // Not owned.
  94   AppListViewDelegate* view_delegate_;  // Not owned.
  95   AppListModel* model_;  // Owned by the profile-keyed service.
  96
  97   scoped_ptr<AppListMenuViews> menu_;
  98
  99   views::ImageView* icon_view_;  // Owned by views hierarchy.
 100   views::ImageButton* speech_button_;  // Owned by views hierarchy.
 101   views::MenuButton* menu_button_;  // Owned by views hierarchy.
 102   views::Textfield* search_box_;  // Owned by views hierarchy.
 103   views::View* contents_view_;  // Owned by views hierarchy.
 104
 105   DISALLOW_COPY_AND_ASSIGN(SearchBoxView);
 106 };
 107
 108 }  // namespace app_list
 109
 110 #endif  // UI_APP_LIST_VIEWS_SEARCH_BOX_VIEW_H_