James Robinson | 646469d | 2014-10-03 15:33:28 -0700 | [diff] [blame] | 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 | |
Nick Bray | 0bcbd3b | 2015-03-12 16:29:36 -0700 | [diff] [blame] | 5 | #ifndef BASE_MAC_COCOA_PROTOCOLS_H_ |
| 6 | #define BASE_MAC_COCOA_PROTOCOLS_H_ |
James Robinson | 646469d | 2014-10-03 15:33:28 -0700 | [diff] [blame] | 7 | |
| 8 | #import <Cocoa/Cocoa.h> |
| 9 | |
James Robinson | 646469d | 2014-10-03 15:33:28 -0700 | [diff] [blame] | 10 | // New Mac OS X SDKs introduce new protocols used for delegates. These |
| 11 | // protocol defintions aren't not present in earlier releases of the Mac OS X |
| 12 | // SDK. In order to support building against the new SDK, which requires |
| 13 | // delegates to conform to these protocols, and earlier SDKs, which do not |
| 14 | // define these protocols at all, this file will provide empty protocol |
| 15 | // definitions when used with earlier SDK versions. |
| 16 | |
| 17 | #define DEFINE_EMPTY_PROTOCOL(p) \ |
| 18 | @protocol p \ |
| 19 | @end |
| 20 | |
| 21 | #if !defined(MAC_OS_X_VERSION_10_7) || \ |
| 22 | MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7 |
| 23 | |
| 24 | DEFINE_EMPTY_PROTOCOL(NSDraggingDestination) |
| 25 | DEFINE_EMPTY_PROTOCOL(ICCameraDeviceDownloadDelegate) |
| 26 | |
| 27 | #endif // MAC_OS_X_VERSION_10_7 |
| 28 | |
| 29 | #undef DEFINE_EMPTY_PROTOCOL |
| 30 | |
Nick Bray | 0bcbd3b | 2015-03-12 16:29:36 -0700 | [diff] [blame] | 31 | #endif // BASE_MAC_COCOA_PROTOCOLS_H_ |