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59 lines
2.2 KiB
JavaScript
59 lines
2.2 KiB
JavaScript
/*
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Copyright 2017 Michael Telatynski <7t3chguy@gmail.com>
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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 SettingsStore from "./settings/SettingsStore";
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function memberEventDiff(ev) {
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const diff = {
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isMemberEvent: ev.getType() === 'm.room.member',
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};
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// If is not a Member Event then the other checks do not apply, so bail early.
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if (!diff.isMemberEvent) return diff;
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const content = ev.getContent();
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const prevContent = ev.getPrevContent();
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const isMembershipChanged = content.membership !== prevContent.membership;
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diff.isJoin = isMembershipChanged && content.membership === 'join';
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diff.isPart = isMembershipChanged && content.membership === 'leave' && ev.getStateKey() === ev.getSender();
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const isJoinToJoin = !isMembershipChanged && content.membership === 'join';
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diff.isDisplaynameChange = isJoinToJoin && content.displayname !== prevContent.displayname;
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diff.isAvatarChange = isJoinToJoin && content.avatar_url !== prevContent.avatar_url;
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return diff;
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}
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export default function shouldHideEvent(ev) {
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// Wrap getValue() for readability. Calling the SettingsStore can be
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// fairly resource heavy, so the checks below should avoid hitting it
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// where possible.
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const isEnabled = (name) => SettingsStore.getValue(name, ev.getRoomId());
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// Hide redacted events
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if (ev.isRedacted() && isEnabled('hideRedactions')) return true;
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const eventDiff = memberEventDiff(ev);
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if (eventDiff.isMemberEvent) {
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if ((eventDiff.isJoin || eventDiff.isPart) && isEnabled('hideJoinLeaves')) return true;
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if (eventDiff.isAvatarChange && isEnabled('hideAvatarChanges')) return true;
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if (eventDiff.isDisplaynameChange && isEnabled('hideDisplaynameChanges')) return true;
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}
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return false;
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}
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