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72 lines
2.7 KiB
JavaScript
72 lines
2.7 KiB
JavaScript
/*
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Copyright 2017 Vector Creations 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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import dis from '../dispatcher';
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/**
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* Create an action creator that will dispatch actions asynchronously that
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* indicate the current status of promise returned by the given function, fn.
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* @param {string} id the id to give the dispatched actions. This is given a
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* suffix determining whether it is pending, successful or
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* a failure.
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* @param {function} fn the function to call with arguments given to the
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* returned function. This function should return a Promise.
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* @returns a function that dispatches asynchronous actions when called.
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*/
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export function createPromiseActionCreator(id, fn) {
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return (...args) => {
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dis.dispatch({action: id + '.pending'});
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fn(...args).then((result) => {
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dis.dispatch({action: id + '.success', result});
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}).catch((err) => {
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dis.dispatch({action: id + '.failure', err});
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})
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}
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}
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/**
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* Create an action creator that will listen to events of type eventId emitted
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* by matrixClient and dispatch a corresponding action of the following shape:
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* {
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* action: 'MatrixActions.' + eventId,
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* event: matrixEvent,
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* event_type: matrixEvent.getType(),
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* event_content: matrixEvent.getContent(),
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* }
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* @param matrixClient{MatrixClient} the matrix client with which to register
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* a listener.
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* @param eventId{string} the ID of the event that hen emitted will cause the
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* an action to be dispatched.
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* @returns a function that, when called, will begin to listen to dispatches
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* from matrixClient. The result from that function can be called to
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* stop listening.
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*/
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export function createMatrixActionCreator(matrixClient, eventId) {
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const listener = (matrixEvent) => {
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dis.dispatch({
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action: 'MatrixActions.' + eventId,
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event: matrixEvent,
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event_type: matrixEvent.getType(),
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event_content: matrixEvent.getContent(),
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});
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};
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return () => {
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matrixClient.on(eventId, listener);
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return () => {
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matrixClient.removeListener(eventId, listener);
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}
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}
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}
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