material-motion
Version:
Makes it easy to add rich, interactive motion to your application.
31 lines • 1.27 kB
JavaScript
/** @license
* Copyright 2016 - present The Material Motion Authors. All Rights Reserved.
*
* 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.
*/
import { MemorylessMotionSubject, } from '../../observables/proxies';
export function withMulticast(superclass) {
return class extends superclass {
/**
* Ensures that upstream operations are shared among all observers. This is
* useful to avoid repeating expensive operations and ensuring that any
* side effects that may occur upstream only happen once.
*/
_multicast() {
const result = new MemorylessMotionSubject();
this.subscribe(result);
return result;
}
};
}
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