blob: 826f8c52b9f3acd6c9dde64c615fa378d2b056e1 [file] [log] [blame]
// Copyright (c) 2013 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.
namespace ash {
// A UiDelegate class is responsible for managing the various UI surfaces
// (MessageCenter and popups) as notifications are added and updated.
// Implementations are platform specific.
class MessageCenterUiDelegate {
virtual ~MessageCenterUiDelegate() {}
// Called whenever a change to the visible UI has occurred.
virtual void OnMessageCenterContentsChanged() = 0;
// Display the popup bubbles for new notifications to the user. Returns true
// if popups were actually displayed to the user.
virtual bool ShowPopups() = 0;
// Remove the popup bubbles from the UI.
virtual void HidePopups() = 0;
// Display the message center containing all undismissed notifications to the
// user. Set |show_by_click| to true if message center is shown by mouse or
// gesture click. Returns true if the center was actually displayed to the
// user.
virtual bool ShowMessageCenter(bool show_by_click) = 0;
// Remove the message center from the UI.
virtual void HideMessageCenter() = 0;
} // namespace ash