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76 lines
2.5 KiB
76 lines
2.5 KiB
/****************************************************************************
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Copyright (c) 2022-2023 Xiamen Yaji Software Co., Ltd.
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http://www.cocos.com
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "plugins/bus/EventBus.h"
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#include <cstring>
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#include <unordered_map>
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#include "base/Macros.h"
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namespace cc {
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namespace plugin {
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Listener::Listener(BusType type) : Listener(EventBus::acquire(type)) {}
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Listener::Listener(BusType type, const char *name) : Listener(type) {
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#if CC_DEBUG
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this->_name = name;
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#endif
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}
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Listener::Listener(EventBus *bus) : _bus(bus) {
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bus->addListener(this);
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}
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Listener::~Listener() {
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_bus->removeListener(this);
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}
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EventBus *EventBus::acquire(BusType type) {
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static std::unordered_map<BusType, EventBus> cache;
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return &cache[type];
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}
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void EventBus::addListener(Listener *listener) {
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CC_ASSERT(std::find(_listeners.begin(), _listeners.end(), listener) == _listeners.end());
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_listeners.emplace_back(listener);
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}
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void EventBus::removeListener(Listener *listener) {
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auto tgt = std::find(_listeners.begin(), _listeners.end(), listener);
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if (tgt != _listeners.end()) {
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_listeners.erase(tgt);
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}
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}
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void EventBus::dispatch(EventBase *event) {
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for (auto *listener : _listeners) {
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for (auto &handle : listener->_handles) {
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if (strcmp(handle->signature(), event->signature()) == 0) {
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handle->invoke(event);
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}
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}
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}
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}
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} // namespace plugin
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} // namespace cc
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