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1 // Copyright 2013 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_APP_LIST_ITEM_OBSERVER_H_
6 #define UI_APP_LIST_APP_LIST_ITEM_OBSERVER_H_
7 
8 #include "ui/app_list/app_list_export.h"
9 
10 namespace app_list {
11 
12 class APP_LIST_EXPORT AppListItemObserver {
13  public:
14   // Invoked after item's icon is changed.
ItemIconChanged()15   virtual void ItemIconChanged() {}
16 
17   // Invoked after item's name is changed.
ItemNameChanged()18   virtual void ItemNameChanged() {}
19 
20   // Invoked after item's highlighted state is changed.
ItemHighlightedChanged()21   virtual void ItemHighlightedChanged() {}
22 
23   // Invoked after item begins or finishes installing.
ItemIsInstallingChanged()24   virtual void ItemIsInstallingChanged() {}
25 
26   // Invoked after item's download percentage changes.
ItemPercentDownloadedChanged()27   virtual void ItemPercentDownloadedChanged() {}
28 
29   // Invoked when the item is about to be destroyed.
ItemBeingDestroyed()30   virtual void ItemBeingDestroyed() {}
31 
32  protected:
~AppListItemObserver()33   virtual ~AppListItemObserver() {}
34 };
35 
36 }  // namespace app_list
37 
38 #endif  // UI_APP_LIST_APP_LIST_ITEM_OBSERVER_H_
39