57 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			JavaScript
		
	
	
			
		
		
	
	
			57 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			JavaScript
		
	
	
| /*
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|  Copyright 2017 Michael Telatynski <7t3chguy@gmail.com>
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| 
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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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| 
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|  http://www.apache.org/licenses/LICENSE-2.0
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| 
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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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| import SettingsStore from "./settings/SettingsStore";
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| 
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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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| 
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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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| 
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|     const content = ev.getContent();
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|     const prevContent = ev.getPrevContent();
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| 
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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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| 
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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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| 
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| export default function shouldHideEvent(ev) {
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|     // Wrap getValue() for readability
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|     const isEnabled = (name) => SettingsStore.getValue(name, ev.getRoomId());
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| 
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|     // Hide redacted events
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|     if (isEnabled('hideRedactions') && ev.isRedacted()) return true;
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| 
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|     const eventDiff = memberEventDiff(ev);
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| 
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|     if (eventDiff.isMemberEvent) {
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|         if (isEnabled('hideJoinLeaves') && (eventDiff.isJoin || eventDiff.isPart)) return true;
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|         if (isEnabled('hideAvatarChanges') && eventDiff.isAvatarChange) return true;
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|         if (isEnabled('hideDisplaynameChanges') && eventDiff.isDisplaynameChange) return true;
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|     }
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| 
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|     return false;
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| }
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