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