33 lines
1 KiB
JavaScript
33 lines
1 KiB
JavaScript
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/*
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Copyright 2016 OpenMarket 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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* Given MatrixEvent containing receipts, return the first
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* read receipt from the given user ID, or null if no such
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* receipt exists.
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*/
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export function findReadReceiptFromUserId(receiptEvent, userId) {
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var receiptKeys = Object.keys(receiptEvent.getContent());
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for (var i = 0; i < receiptKeys.length; ++i) {
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var rcpt = receiptEvent.getContent()[receiptKeys[i]];
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if (rcpt['m.read'] && rcpt['m.read'][userId]) {
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return rcpt;
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}
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}
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return null;
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}
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