[Aura] Implement views-based applist.

ui/aura_shell/app_list/app_list_view.h

+// 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_APP_LIST_VIEW_H_
+#define UI_AURA_SHELL_APP_LIST_APP_LIST_VIEW_H_
+#pragma once
+
+#include "base/memory/scoped_ptr.h"
+#include "ui/aura_shell/app_list/app_list_item_view_listener.h"
+#include "ui/aura_shell/aura_shell_export.h"
+#include "ui/aura_shell/shell_delegate.h"
+#include "ui/views/widget/widget_delegate.h"
+
+namespace views {
+class View;
+}
+
+namespace aura_shell {
+
+class AppListModel;
+class AppListViewDelegate;
+
+// AppListView is the top-level view and controller of app list UI. It creates
+// and hosts a AppListModelView and passes AppListModel to it for display.
+class AURA_SHELL_EXPORT AppListView : public views::WidgetDelegateView,
+                                      public AppListItemViewListener {
+ public:
+  // Takes ownership of |model| and |delegate|.
+  AppListView(AppListModel* model,
+              AppListViewDelegate* delegate,
+              const gfx::Rect& bounds,
+              const ShellDelegate::SetWidgetCallback& callback);
+  virtual ~AppListView();
+
+  // Closes app list.
+  void Close();
+
+ private:
+  // Initializes the window.
+  void Init(const gfx::Rect& bounds,
+            const ShellDelegate::SetWidgetCallback& callback);
+
+  // Overridden from views::View:
+  virtual bool OnKeyPressed(const views::KeyEvent& event) OVERRIDE;
+  virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE;
+
+  // Overridden from AppListItemModelViewListener:
+  virtual void AppListItemActivated(AppListItemView* sender,
+                                    int event_flags) OVERRIDE;
+
+  scoped_ptr<AppListModel> model_;
+
+  scoped_ptr<AppListViewDelegate> delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(AppListView);
+};
+
+}  // namespace aura_shell
+
+#endif  // UI_AURA_SHELL_APP_LIST_APP_LIST_VIEW_H_