Add right panel chat timeline (#7112)

Co-authored-by: J. Ryan Stinnett <jryans@gmail.com>

src/components/views/right_panel/TimelineCard.tsx

@@ -0,0 +1,103 @@
+/*
+Copyright 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 { MatrixEvent, Room } from 'matrix-js-sdk/src';
+import { Thread } from 'matrix-js-sdk/src/models/thread';
+
+import BaseCard from "./BaseCard";
+
+import ResizeNotifier from '../../../utils/ResizeNotifier';
+import MessageComposer from '../rooms/MessageComposer';
+import { RoomPermalinkCreator } from '../../../utils/permalinks/Permalinks';
+import { Layout } from '../../../settings/enums/Layout';
+import TimelinePanel from '../../structures/TimelinePanel';
+import { E2EStatus } from '../../../utils/ShieldUtils';
+import EditorStateTransfer from '../../../utils/EditorStateTransfer';
+import RoomContext from '../../../contexts/RoomContext';
+
+import { _t } from '../../../languageHandler';
+import { replaceableComponent } from '../../../utils/replaceableComponent';
+
+interface IProps {
+    room: Room;
+    onClose: () => void;
+    resizeNotifier: ResizeNotifier;
+    permalinkCreator?: RoomPermalinkCreator;
+    e2eStatus?: E2EStatus;
+    initialEvent?: MatrixEvent;
+    initialEventHighlighted?: boolean;
+}
+interface IState {
+    thread?: Thread;
+    editState?: EditorStateTransfer;
+    replyToEvent?: MatrixEvent;
+}
+
+@replaceableComponent("structures.TimelineCard")
+export default class TimelineCard extends React.Component<IProps, IState> {
+    static contextType = RoomContext;
+
+    constructor(props: IProps) {
+        super(props);
+        this.state = {};
+    }
+
+    private renderTimelineCardHeader = (): JSX.Element => {
+        return <div className="mx_TimelineCard__header">
+            <span>{ _t("Chat") }</span>
+        </div>;
+    };
+
+    public render(): JSX.Element {
+        return (
+            <BaseCard
+                className="mx_ThreadPanel mx_TimelineCard"
+                onClose={this.props.onClose}
+                withoutScrollContainer={true}
+                header={this.renderTimelineCardHeader()}
+            >
+                <TimelinePanel
+                    showReadReceipts={false} // TODO: RR's cause issues with limited horizontal space
+                    manageReadReceipts={true}
+                    manageReadMarkers={false} // No RM support in the TimelineCard
+                    sendReadReceiptOnLoad={true}
+                    timelineSet={this.props.room.getUnfilteredTimelineSet()}
+                    showUrlPreview={true}
+                    layout={Layout.Group}
+                    hideThreadedMessages={false}
+                    hidden={false}
+                    showReactions={true}
+                    className="mx_RoomView_messagePanel mx_GroupLayout"
+                    permalinkCreator={this.props.permalinkCreator}
+                    membersLoaded={true}
+                    editState={this.state.editState}
+                    eventId={this.props.initialEvent?.getId()}
+                    resizeNotifier={this.props.resizeNotifier}
+                />
+
+                <MessageComposer
+                    room={this.props.room}
+                    resizeNotifier={this.props.resizeNotifier}
+                    replyToEvent={this.state.replyToEvent}
+                    permalinkCreator={this.props.permalinkCreator}
+                    e2eStatus={this.props.e2eStatus}
+                    compact={true}
+                />
+            </BaseCard>
+        );
+    }
+}