Convert MessagePanel, TimelinePanel, ScrollPanel, and more to Typescript

src/components/views/messages/DateSeparator.tsx

@@ -0,0 +1,69 @@
+/*
+Copyright 2018 Michael Telatynski <7t3chguy@gmail.com>
+Copyright 2015 - 2021 The Matrix.org Foundation C.I.C.
+
+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 React from 'react';
+
+import { _t } from '../../../languageHandler';
+import { formatFullDateNoTime } from '../../../DateUtils';
+import { replaceableComponent } from "../../../utils/replaceableComponent";
+
+function getDaysArray(): string[] {
+    return [
+        _t('Sunday'),
+        _t('Monday'),
+        _t('Tuesday'),
+        _t('Wednesday'),
+        _t('Thursday'),
+        _t('Friday'),
+        _t('Saturday'),
+    ];
+}
+
+interface IProps {
+    ts: number;
+}
+
+@replaceableComponent("views.messages.DateSeparator")
+export default class DateSeparator extends React.Component<IProps> {
+    private getLabel() {
+        const date = new Date(this.props.ts);
+        const today = new Date();
+        const yesterday = new Date();
+        const days = getDaysArray();
+        yesterday.setDate(today.getDate() - 1);
+
+        if (date.toDateString() === today.toDateString()) {
+            return _t('Today');
+        } else if (date.toDateString() === yesterday.toDateString()) {
+            return _t('Yesterday');
+        } else if (today.getTime() - date.getTime() < 6 * 24 * 60 * 60 * 1000) {
+            return days[date.getDay()];
+        } else {
+            return formatFullDateNoTime(date);
+        }
+    }
+
+    render() {
+        // ARIA treats <hr/>s as separators, here we abuse them slightly so manually treat this entire thing as one
+        // tab-index=-1 to allow it to be focusable but do not add tab stop for it, primarily for screen readers
+        return <h2 className="mx_DateSeparator" role="separator" tabIndex={-1}>
+            <hr role="none" />
+            <div>{ this.getLabel() }</div>
+            <hr role="none" />
+        </h2>;
+    }
+}