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// 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 ASH_SHELL_DELEGATE_H_
#define ASH_SHELL_DELEGATE_H_
#pragma once
#include "base/callback.h"
#include "ash/ash_export.h"
namespace gfx {
class Rect;
}
namespace views {
class Widget;
}
namespace ash {
class AppListModel;
class AppListViewDelegate;
struct LauncherItem;
// Delegate of the Shell.
class ASH_EXPORT ShellDelegate {
public:
// Callback to pass back a widget used by RequestAppListWidget.
typedef base::Callback<void(views::Widget*)> SetWidgetCallback;
// The Shell owns the delegate.
virtual ~ShellDelegate() {}
// Invoked when the user clicks on button in the launcher to create a new
// window.
virtual void CreateNewWindow() = 0;
// Invoked to create a new status area. Can return NULL.
virtual views::Widget* CreateStatusArea() = 0;
// Invoked to create app list widget. The Delegate calls the callback
// when the widget is ready to show.
// Deprecated.
// TODO(xiyuan): Clean this up when switching to views app list.
virtual void RequestAppListWidget(
const gfx::Rect& bounds,
const SetWidgetCallback& callback) = 0;
// Invoked to ask the delegate to populate the |model|.
virtual void BuildAppListModel(AppListModel* model) = 0;
// Invoked to create an AppListViewDelegate. Shell takes the ownership of
// the created delegate.
virtual AppListViewDelegate* CreateAppListViewDelegate() = 0;
// Invoked when the user clicks on a window entry in the launcher.
virtual void LauncherItemClicked(const LauncherItem& item) = 0;
// Invoked when a window is added. If the delegate wants the launcher to show
// an entry for |item->window| it should configure |item| appropriately and
// return true.
virtual bool ConfigureLauncherItem(LauncherItem* item) = 0;
};
} // namespace ash
#endif // ASH_SHELL_DELEGATE_H_
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