1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef BASE_COCOA_PROTOCOLS_MAC_H_ 6#define BASE_COCOA_PROTOCOLS_MAC_H_ 7 8#import <Cocoa/Cocoa.h> 9 10// GTM also maintains a list of empty protocols, but only the ones the library 11// requires. Augment that below. 12#import "third_party/google_toolbox_for_mac/src/GTMDefines.h" 13 14// New Mac OS X SDKs introduce new protocols used for delegates. These 15// protocol defintions aren't not present in earlier releases of the Mac OS X 16// SDK. In order to support building against the new SDK, which requires 17// delegates to conform to these protocols, and earlier SDKs, which do not 18// define these protocols at all, this file will provide empty protocol 19// definitions when used with earlier SDK versions. 20 21#define DEFINE_EMPTY_PROTOCOL(p) \ 22@protocol p \ 23@end 24 25#if !defined(MAC_OS_X_VERSION_10_7) || \ 26 MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7 27 28DEFINE_EMPTY_PROTOCOL(NSDraggingDestination) 29DEFINE_EMPTY_PROTOCOL(ICCameraDeviceDownloadDelegate) 30 31#endif // MAC_OS_X_VERSION_10_7 32 33#undef DEFINE_EMPTY_PROTOCOL 34 35#endif // BASE_COCOA_PROTOCOLS_MAC_H_ 36