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 28 DEFINE_EMPTY_PROTOCOL(NSDraggingDestination) 29 DEFINE_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