henrike@webrtc.org | f7795df | 2014-05-13 18:00:26 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2006 The WebRTC Project Authors. All rights reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #ifndef WEBRTC_BASE_SIGSLOTREPEATER_H__ |
| 12 | #define WEBRTC_BASE_SIGSLOTREPEATER_H__ |
| 13 | |
| 14 | // repeaters are both signals and slots, which are designed as intermediate |
| 15 | // pass-throughs for signals and slots which don't know about each other (for |
| 16 | // modularity or encapsulation). This eliminates the need to declare a signal |
| 17 | // handler whose sole purpose is to fire another signal. The repeater connects |
| 18 | // to the originating signal using the 'repeat' method. When the repeated |
| 19 | // signal fires, the repeater will also fire. |
| 20 | |
| 21 | #include "webrtc/base/sigslot.h" |
| 22 | |
| 23 | namespace sigslot { |
| 24 | |
| 25 | template<class mt_policy = SIGSLOT_DEFAULT_MT_POLICY> |
| 26 | class repeater0 : public signal0<mt_policy>, |
| 27 | public has_slots<mt_policy> |
| 28 | { |
| 29 | public: |
| 30 | typedef signal0<mt_policy> base_type; |
| 31 | typedef repeater0<mt_policy> this_type; |
| 32 | |
| 33 | repeater0() { } |
| 34 | repeater0(const this_type& s) : base_type(s) { } |
| 35 | |
| 36 | void reemit() { signal0<mt_policy>::emit(); } |
| 37 | void repeat(base_type &s) { s.connect(this, &this_type::reemit); } |
| 38 | void stop(base_type &s) { s.disconnect(this); } |
| 39 | }; |
| 40 | |
| 41 | template<class arg1_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY> |
| 42 | class repeater1 : public signal1<arg1_type, mt_policy>, |
| 43 | public has_slots<mt_policy> |
| 44 | { |
| 45 | public: |
| 46 | typedef signal1<arg1_type, mt_policy> base_type; |
| 47 | typedef repeater1<arg1_type, mt_policy> this_type; |
| 48 | |
| 49 | repeater1() { } |
| 50 | repeater1(const this_type& s) : base_type(s) { } |
| 51 | |
| 52 | void reemit(arg1_type a1) { signal1<arg1_type, mt_policy>::emit(a1); } |
| 53 | void repeat(base_type& s) { s.connect(this, &this_type::reemit); } |
| 54 | void stop(base_type &s) { s.disconnect(this); } |
| 55 | }; |
| 56 | |
| 57 | template<class arg1_type, class arg2_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY> |
| 58 | class repeater2 : public signal2<arg1_type, arg2_type, mt_policy>, |
| 59 | public has_slots<mt_policy> |
| 60 | { |
| 61 | public: |
| 62 | typedef signal2<arg1_type, arg2_type, mt_policy> base_type; |
| 63 | typedef repeater2<arg1_type, arg2_type, mt_policy> this_type; |
| 64 | |
| 65 | repeater2() { } |
| 66 | repeater2(const this_type& s) : base_type(s) { } |
| 67 | |
| 68 | void reemit(arg1_type a1, arg2_type a2) { signal2<arg1_type, arg2_type, mt_policy>::emit(a1,a2); } |
| 69 | void repeat(base_type& s) { s.connect(this, &this_type::reemit); } |
| 70 | void stop(base_type &s) { s.disconnect(this); } |
| 71 | }; |
| 72 | |
| 73 | template<class arg1_type, class arg2_type, class arg3_type, |
| 74 | class mt_policy = SIGSLOT_DEFAULT_MT_POLICY> |
| 75 | class repeater3 : public signal3<arg1_type, arg2_type, arg3_type, mt_policy>, |
| 76 | public has_slots<mt_policy> |
| 77 | { |
| 78 | public: |
| 79 | typedef signal3<arg1_type, arg2_type, arg3_type, mt_policy> base_type; |
| 80 | typedef repeater3<arg1_type, arg2_type, arg3_type, mt_policy> this_type; |
| 81 | |
| 82 | repeater3() { } |
| 83 | repeater3(const this_type& s) : base_type(s) { } |
| 84 | |
| 85 | void reemit(arg1_type a1, arg2_type a2, arg3_type a3) { |
| 86 | signal3<arg1_type, arg2_type, arg3_type, mt_policy>::emit(a1,a2,a3); |
| 87 | } |
| 88 | void repeat(base_type& s) { s.connect(this, &this_type::reemit); } |
| 89 | void stop(base_type &s) { s.disconnect(this); } |
| 90 | }; |
| 91 | |
| 92 | } // namespace sigslot |
| 93 | |
| 94 | #endif // WEBRTC_BASE_SIGSLOTREPEATER_H__ |