ui/app_list/app_list_item_observer.h

   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.
  15   virtual void ItemIconChanged() = 0;
  16
  17   // Invoked after item's title is changed.
  18   virtual void ItemTitleChanged() = 0;
  19
  20   // Invoked after item's highlighted state is changed.
  21   virtual void ItemHighlightedChanged() = 0;
  22
  23   // Invoked after item begins or finishes installing.
  24   virtual void ItemIsInstallingChanged() = 0;
  25
  26   // Invoked after item's download percentage changes.
  27   virtual void ItemPercentDownloadedChanged() = 0;
  28
  29  protected:
  30   virtual ~AppListItemObserver() {}
  31 };
  32
  33 }  // namespace app_list
  34
  35 #endif  // UI_APP_LIST_APP_LIST_ITEM_OBSERVER_H_