root/ui/message_center/cocoa/tray_controller.h

// 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.

#ifndef UI_MESSAGE_CENTER_COCOA_TRAY_CONTROLLER_H_
#define UI_MESSAGE_CENTER_COCOA_TRAY_CONTROLLER_H_

#import <AppKit/AppKit.h>

#include "base/basictypes.h"
#include "base/mac/scoped_nsobject.h"
#include "ui/message_center/message_center_export.h"

@class MCTrayViewController;

namespace message_center {
class MessageCenterTray;
}

// The window controller for the message center tray. This merely hosts the
// view from MCTrayViewController.
MESSAGE_CENTER_EXPORT
@interface MCTrayController : NSWindowController<NSWindowDelegate> {
 @private
  message_center::MessageCenterTray* tray_;  // Weak, indirectly owns this.

  // View controller that provides this window's content.
  base::scoped_nsobject<MCTrayViewController> viewController_;

  // An event monitor that listens for clicks outside the tray window to cause
  // it to close.
  id clickEventMonitor_;
}

@property(readonly, nonatomic) MCTrayViewController* viewController;

// Designated initializer.
- (id)initWithMessageCenterTray:(message_center::MessageCenterTray*)tray;

// Opens the message center tray to either the right or left of the given
// points, depending on if it will fit on screen. It will try opening to the
// right first, but if the window does not fit on screen, it will open to the
// left.
- (void)showTrayAtRightOf:(NSPoint)rightPoint atLeftOf:(NSPoint)leftPoint;

// Callback from MessageCenterTrayDelegate, used to update the tray content.
- (void)onMessageCenterTrayChanged;

@end

#endif  // UI_MESSAGE_CENTER_COCOA_TRAY_CONTROLLER_H_