Move app list from ash to ui.

The goal is to make app list an independent component so that it could be reused in elsewhere.

BUG=none.
TEST=none.
Review URL: https://chromiumcodereview.appspot.com/10388032

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@135981 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 48 insertions, 0 deletions

diff --git a/ui/app_list/app_list_model.h b/ui/app_list/app_list_model.h
new file mode 100644
index 0000000..2424f6e
--- /dev/null
+++ b/ui/app_list/app_list_model.h
@@ -0,0 +1,48 @@
+// 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_APP_LIST_MODEL_H_
+#define UI_APP_LIST_APP_LIST_MODEL_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "ui/app_list/app_list_export.h"
+#include "ui/app_list/app_list_item_model.h"
+#include "ui/base/models/list_model.h"
+
+namespace app_list {
+
+class AppListItemModel;
+
+// Model for AppListModelView that owns a list of AppListItemModels.
+class APP_LIST_EXPORT AppListModel {
+ public:
+  AppListModel();
+  virtual ~AppListModel();
+
+  // Adds an item to the model. The model takes ownership of |item|.
+  void AddItem(AppListItemModel* item);
+  void AddItemAt(int index, AppListItemModel* item);
+
+  void DeleteItemAt(int index);
+
+  AppListItemModel* GetItem(int index);
+
+  void AddObserver(ui::ListModelObserver* observer);
+  void RemoveObserver(ui::ListModelObserver* observer);
+
+  int item_count() const {
+    return items_.item_count();
+  }
+
+ private:
+  typedef ui::ListModel<AppListItemModel> Items;
+  Items items_;
+
+  DISALLOW_COPY_AND_ASSIGN(AppListModel);
+};
+
+}  // namespace app_list
+
+#endif  // UI_APP_LIST_APP_LIST_MODEL_H_