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d3ce0cb82f
The bulk of this is just export/import changes, though there's a couple pieces to highlight: * We no longer use default exports. This is because it's discouraged by the JS community, though not in any official capacity. * We now use `polyfillSuper` for some prototype inheritance because the tests, and sometimes webpack, break on "cannot call EncryptionAlgorithm without 'new'". It's very much a workaround, and definitely not needed when we use real classes. There is some import shuffling to help keep the imports clean - this was done by my IDE.
53 lines
1.6 KiB
JavaScript
53 lines
1.6 KiB
JavaScript
/*
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Copyright 2015, 2016 OpenMarket Ltd
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Copyright 2017 Vector Creations Ltd
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Copyright 2017 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @module
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*/
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export class ReEmitter {
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constructor(target) {
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this.target = target;
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// We keep one bound event handler for each event name so we know
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// what event is arriving
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this.boundHandlers = {};
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}
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_handleEvent(eventName, ...args) {
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this.target.emit(eventName, ...args);
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}
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reEmit(source, eventNames) {
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// We include the source as the last argument for event handlers which may need it,
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// such as read receipt listeners on the client class which won't have the context
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// of the room.
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const forSource = (handler, ...args) => {
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handler(...args, source);
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};
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for (const eventName of eventNames) {
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if (this.boundHandlers[eventName] === undefined) {
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this.boundHandlers[eventName] = this._handleEvent.bind(this, eventName);
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}
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const boundHandler = forSource.bind(this, this.boundHandlers[eventName]);
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source.on(eventName, boundHandler);
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}
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}
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}
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