add first draft of RoomGridView

src/components/structures/GroupGridView.js

@@ -0,0 +1,84 @@
+/*
+Copyright 2017 Vector Creations Ltd.
+Copyright 2017, 2018 New Vector Ltd.
+
+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 PropTypes from 'prop-types';
+import OpenRoomsStore from '../../stores/OpenRoomsStore';
+import dis from '../../dispatcher';
+import RoomView from './RoomView';
+
+export default class RoomGridView extends React.Component {
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            roomStores: OpenRoomsStore.getRoomStores(),
+        };
+    }
+
+    componentWillMount() {
+        this._unmounted = false;
+        this._openRoomsStoreRegistration = OpenRoomsStore.addListener(this.onRoomsChanged);
+        this._dispatcherRef = dis.register(this._onAction);
+    }
+
+    componentWillUnmount() {
+        this._unmounted = true;
+        if (this._openRoomsStoreRegistration) {
+            this._openRoomsStoreRegistration.unregister();
+        }
+        dis.unregister(this._dispatcherRef);
+    }
+
+    onRoomsChanged() {
+        if (this._unmounted) return;
+        this.setState({
+            roomStores: OpenRoomsStore.getRoomStores(),
+        });
+    }
+
+    _onAction(payload) {
+        switch (payload.action) {
+            default:
+                break;
+        }
+    }
+
+    render() {
+        let roomStores = this.state.roomStores.slice(0, 6);
+        const emptyCount = 6 - roomStores.length;
+        if (emptyCount) {
+            const emptyTiles = Array.from({length: emptyCount}, () => null);
+            roomStores = roomStores.concat(emptyTiles);
+        }
+        return (<main className="mx_GroupGridView">
+            { roomStores.map(roomStore => {
+                if (roomStore) {
+                    return (<section key={roomStore.getRoomId()} className="mx_RoomGridView_tile">
+                        <RoomView
+                            collapsedRhs={true}
+                            roomViewStore={roomStore}
+                        />
+                    </section>);
+                } else {
+                    return (<section className={"mx_RoomGridView_emptyTile"} />);
+                }
+            }) }
+        </main>);
+    }
+
+}