[Aura] Implement views-based applist.

ui/aura_shell/app_list/tile_view.h

Index: ui/aura_shell/app_list/tile_view.h
diff --git a/ui/aura_shell/app_list/tile_view.h b/ui/aura_shell/app_list/tile_view.h
new file mode 100644
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+++ b/ui/aura_shell/app_list/tile_view.h
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+// Copyright (c) 2011 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_AURA_SHELL_APP_LIST_TILE_VIEW_H_
+#define UI_AURA_SHELL_APP_LIST_TILE_VIEW_H_
+#pragma once
+
+#include "ui/aura_shell/aura_shell_export.h"
+#include "ui/aura_shell/app_list/app_list_item_model_observer.h"
+#include "ui/views/view.h"
+
+class SkBitmap;
+
+namespace views {
+class ImageView;
+class Label;
+}
+
+namespace aura_shell {
+
+class AppListItemModel;
+
+// A tile view to display AppListItemModel.
+class AURA_SHELL_EXPORT TileView : public views::View,
+                                   public AppListItemModelObserver {
+ public:
+  explicit TileView(AppListItemModel* model);
+  virtual ~TileView();
+
+  // Tile size
+  static const int kTileSize = 180;
+
+  // Preferred icon size.
+  static const int kIconSize = 128;
+
+ protected:
+  // Activates the tile.
+  virtual void Activate(int event_flags);
+
+  // AppListItemModelObserver overrides:
+  virtual void ItemIconChanged() OVERRIDE;
+  virtual void ItemTitleChanged() OVERRIDE;
+
+  // views::View overrides:
+  virtual gfx::Size GetPreferredSize() OVERRIDE;
+  virtual void Layout() OVERRIDE;
+  virtual void OnFocus() OVERRIDE;
+  virtual void OnBlur() OVERRIDE;
+  virtual bool OnKeyPressed(const views::KeyEvent& event) OVERRIDE;
+  virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE;
+  virtual void OnMouseReleased(const views::MouseEvent& event) OVERRIDE;
+  virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
+
+ private:
+  AppListItemModel* model_;
+  views::ImageView* icon_;
+  views::Label* label_;
+
+  DISALLOW_COPY_AND_ASSIGN(TileView);
+};
+
+}  // namespace aura_shell
+
+#endif  // UI_AURA_SHELL_APP_LIST_TILE_VIEW_H_