// Copyright (c) 2009 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 BASE_COCOA_PROTOCOLS_MAC_H_
#define BASE_COCOA_PROTOCOLS_MAC_H_

#import <Cocoa/Cocoa.h>

// The Mac OS X 10.6 SDK introduced new protocols used for delegates.  These
// protocol defintions were not present in earlier releases of the Mac OS X
// SDK.  In order to support building against the new SDK, which requires
// delegates to conform to these protocols, and earlier SDKs, which do not
// define these protocols at all, this file will provide empty protocol
// definitions when used with earlier SDK versions.

#if !defined(MAC_OS_X_VERSION_10_6) || \
    MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_6

#define DEFINE_EMPTY_PROTOCOL(p) \
@protocol p \
@end

DEFINE_EMPTY_PROTOCOL(NSAlertDelegate)
DEFINE_EMPTY_PROTOCOL(NSAnimationDelegate)
DEFINE_EMPTY_PROTOCOL(NSControlTextEditingDelegate)
DEFINE_EMPTY_PROTOCOL(NSMatrixDelegate)
DEFINE_EMPTY_PROTOCOL(NSMenuDelegate)
DEFINE_EMPTY_PROTOCOL(NSOutlineViewDelegate)
DEFINE_EMPTY_PROTOCOL(NSTableViewDataSource)
DEFINE_EMPTY_PROTOCOL(NSTableViewDelegate)
DEFINE_EMPTY_PROTOCOL(NSTextFieldDelegate)
DEFINE_EMPTY_PROTOCOL(NSTextViewDelegate)
DEFINE_EMPTY_PROTOCOL(NSWindowDelegate)

#undef DEFINE_EMPTY_PROTOCOL

#endif

#endif  // BASE_COCOA_PROTOCOLS_MAC_H_
