/** * Copyright JS Foundation and other contributors, http://js.foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. **/ RED.events = (function() { var handlers = {}; function on(evt,func) { handlers[evt] = handlers[evt]||[]; handlers[evt].push(func); } function off(evt,func) { var handler = handlers[evt]; if (handler) { for (var i=0;i<handler.length;i++) { if (handler[i] === func) { handler.splice(i,1); return; } } } } function emit(evt,arg) { if (handlers[evt]) { for (var i=0;i<handlers[evt].length;i++) { try { handlers[evt][i](arg); } catch(err) { console.log("RED.events.emit error: ["+evt+"] "+(err.toString())); console.log(err); } } } } return { on: on, off: off, emit: emit } })();