// 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_VIEW_DELEGATE_H_
#define UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_
#pragma once

#include "ui/app_list/app_list_export.h"

namespace app_list {

class AppListItemModel;
class AppListModel;
class SearchResult;

class APP_LIST_EXPORT AppListViewDelegate {
 public:
  // AppListView owns the delegate.
  virtual ~AppListViewDelegate() {}

  // Invoked to set the model that AppListView uses.
  // Note that AppListView owns the model.
  virtual void SetModel(AppListModel* model) = 0;

  // Invoked when an AppListeItemModelView is activated by click or enter key.
  virtual void ActivateAppListItem(AppListItemModel* item,
                                   int event_flags) = 0;

  // Invoked to start a new search. Delegate collects query input from
  // SearchBoxModel and populates SearchResults. Both models are sub models
  // of AppListModel.
  virtual void StartSearch() = 0;

  // Invoked to stop the current search.
  virtual void StopSearch() = 0;

  // Invoked to open the search result.
  virtual void OpenSearchResult(const SearchResult& result,
                                int event_flags) = 0;

  // Invoked to close app list.
  virtual void Close() = 0;
};

}  // namespace app_list

#endif  // UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_