Skeleton for app_list on OSX, and refactoring for enable_app_list=1 on OS=="mac".

ui/app_list/search_box_view.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef UI_APP_LIST_SEARCH_BOX_VIEW_H_
-#define UI_APP_LIST_SEARCH_BOX_VIEW_H_
-
-#include <string>
-
-#include "ui/app_list/search_box_model_observer.h"
-#include "ui/views/view.h"
-#include "ui/views/controls/textfield/textfield_controller.h"
-
-namespace views {
-class ImageView;
-class Textfield;
-}  // namespace views
-
-namespace app_list {
-
-class SearchBoxModel;
-class SearchBoxViewDelegate;
-
-// SearchBoxView consists of an icon and a Textfield. SearchBoxModel is its data
-// model that controls what icon to display, what placeholder text to use for
-// Textfield. The text and selection model part could be set to change the
-// contents and selection model of the Textfield.
-class SearchBoxView : public views::View,
-                      public views::TextfieldController,
-                      public SearchBoxModelObserver {
- public:
-  explicit SearchBoxView(SearchBoxViewDelegate* delegate);
-  virtual ~SearchBoxView();
-
-  void SetModel(SearchBoxModel* model);
-
-  views::Textfield* search_box() { return search_box_; }
-
-  void set_contents_view(View* contents_view) {
-    contents_view_ = contents_view;
-  }
-
-  // Overridden from views::View:
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
-  virtual void Layout() OVERRIDE;
-  virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE;
-
- private:
-  // Updates model text and selection model with current Textfield info.
-  void UpdateModel();
-
-  // Fires query change notification.
-  void NotifyQueryChanged();
-
-  // Overridden from views::TextfieldController:
-  virtual void ContentsChanged(views::Textfield* sender,
-                               const string16& new_contents) OVERRIDE;
-  virtual bool HandleKeyEvent(views::Textfield* sender,
-                              const ui::KeyEvent& key_event) OVERRIDE;
-
-  // Overridden from SearchBoxModelObserver:
-  virtual void IconChanged() OVERRIDE;
-  virtual void HintTextChanged() OVERRIDE;
-  virtual void SelectionModelChanged() OVERRIDE;
-  virtual void TextChanged() OVERRIDE;
-
-  SearchBoxViewDelegate* delegate_;  // Not owned.
-  SearchBoxModel* model_;  // Owned by AppListModel.
-
-  views::ImageView* icon_view_;  // Owned by views hierarchy.
-  views::Textfield* search_box_;  // Owned by views hierarchy.
-  views::View* contents_view_;  // Owned by views hierarchy.
-
-  DISALLOW_COPY_AND_ASSIGN(SearchBoxView);
-};
-
-}  // namespace app_list
-
-#endif  // UI_APP_LIST_SEARCH_BOX_VIEW_H_
-