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 ContentsView;
  29 class SearchBoxModel;
  30 class SearchBoxViewDelegate;
  31
  32 // SearchBoxView consists of an icon and a Textfield. SearchBoxModel is its data
  33 // model that controls what icon to display, what placeholder text to use for
  34 // Textfield. The text and selection model part could be set to change the
  35 // contents and selection model of the Textfield.
  36 class SearchBoxView : public views::View,
  37                       public views::TextfieldController,
  38                       public views::ButtonListener,
  39                       public views::MenuButtonListener,
  40                       public SearchBoxModelObserver,
  41                       public SpeechUIModelObserver {
  42  public:
  43   SearchBoxView(SearchBoxViewDelegate* delegate,
  44                 AppListViewDelegate* view_delegate);
  45   virtual ~SearchBoxView();
  46
  47   void ModelChanged();
  48   bool HasSearch() const;
  49   void ClearSearch();
  50   void InvalidateMenu();
  51
  52   views::Textfield* search_box() { return search_box_; }
  53
  54   void set_contents_view(ContentsView* contents_view) {
  55     contents_view_ = contents_view;
  56   }
  57
  58   // Overridden from views::View:
  59   virtual gfx::Size GetPreferredSize() OVERRIDE;
  60   virtual void Layout() OVERRIDE;
  61   virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE;
  62
  63  private:
  64   // Updates model text and selection model with current Textfield info.
  65   void UpdateModel();
  66
  67   // Fires query change notification.
  68   void NotifyQueryChanged();
  69
  70   // Overridden from views::TextfieldController:
  71   virtual void ContentsChanged(views::Textfield* sender,
  72                                const base::string16& new_contents) OVERRIDE;
  73   virtual bool HandleKeyEvent(views::Textfield* sender,
  74                               const ui::KeyEvent& key_event) OVERRIDE;
  75
  76   // Overridden from views::ButtonListener:
  77   virtual void ButtonPressed(views::Button* sender,
  78                              const ui::Event& event) OVERRIDE;
  79
  80   // Overridden from views::MenuButtonListener:
  81   virtual void OnMenuButtonClicked(View* source,
  82                                    const gfx::Point& point) OVERRIDE;
  83
  84   // Overridden from SearchBoxModelObserver:
  85   virtual void IconChanged() OVERRIDE;
  86   virtual void SpeechRecognitionButtonPropChanged() OVERRIDE;
  87   virtual void HintTextChanged() OVERRIDE;
  88   virtual void SelectionModelChanged() OVERRIDE;
  89   virtual void TextChanged() OVERRIDE;
  90
  91   // Overridden from SpeechUIModelObserver:
  92   virtual void OnSpeechRecognitionStateChanged(
  93       SpeechRecognitionState new_state) OVERRIDE;
  94
  95   SearchBoxViewDelegate* delegate_;  // Not owned.
  96   AppListViewDelegate* view_delegate_;  // Not owned.
  97   AppListModel* model_;  // Owned by the profile-keyed service.
  98
  99   scoped_ptr<AppListMenuViews> menu_;
 100
 101   views::ImageView* icon_view_;  // Owned by views hierarchy.
 102   views::ImageButton* speech_button_;  // Owned by views hierarchy.
 103   views::MenuButton* menu_button_;  // Owned by views hierarchy.
 104   views::Textfield* search_box_;  // Owned by views hierarchy.
 105   ContentsView* contents_view_;  // Owned by views hierarchy.
 106
 107   DISALLOW_COPY_AND_ASSIGN(SearchBoxView);
 108 };
 109
 110 }  // namespace app_list
 111
 112 #endif  // UI_APP_LIST_VIEWS_SEARCH_BOX_VIEW_H_