move non-Riot-specific components over from riot-web

src/components/structures/LeftPanel.js

@@ -0,0 +1,226 @@
+/*
+Copyright 2015, 2016 OpenMarket 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.
+*/
+
+'use strict';
+
+import React from 'react';
+import PropTypes from 'prop-types';
+import classNames from 'classnames';
+import { MatrixClient } from 'matrix-js-sdk';
+import { KeyCode } from 'matrix-react-sdk/lib/Keyboard';
+import sdk from 'matrix-react-sdk';
+import dis from 'matrix-react-sdk/lib/dispatcher';
+import VectorConferenceHandler from '../../VectorConferenceHandler';
+
+import SettingsStore from 'matrix-react-sdk/lib/settings/SettingsStore';
+
+
+var LeftPanel = React.createClass({
+    displayName: 'LeftPanel',
+
+    // NB. If you add props, don't forget to update
+    // shouldComponentUpdate!
+    propTypes: {
+        collapsed: PropTypes.bool.isRequired,
+    },
+
+    contextTypes: {
+        matrixClient: PropTypes.instanceOf(MatrixClient),
+    },
+
+    getInitialState: function() {
+        return {
+            searchFilter: '',
+        };
+    },
+
+    componentWillMount: function() {
+        this.focusedElement = null;
+    },
+
+    shouldComponentUpdate: function(nextProps, nextState) {
+        // MatrixChat will update whenever the user switches
+        // rooms, but propagating this change all the way down
+        // the react tree is quite slow, so we cut this off
+        // here. The RoomTiles listen for the room change
+        // events themselves to know when to update.
+        // We just need to update if any of these things change.
+        if (
+            this.props.collapsed !== nextProps.collapsed ||
+            this.props.disabled !== nextProps.disabled
+        ) {
+            return true;
+        }
+
+        if (this.state.searchFilter !== nextState.searchFilter) {
+            return true;
+        }
+
+        return false;
+    },
+
+    _onFocus: function(ev) {
+        this.focusedElement = ev.target;
+    },
+
+    _onBlur: function(ev) {
+        this.focusedElement = null;
+    },
+
+    _onKeyDown: function(ev) {
+        if (!this.focusedElement) return;
+        let handled = false;
+
+        switch (ev.keyCode) {
+            case KeyCode.UP:
+                this._onMoveFocus(true);
+                handled = true;
+                break;
+            case KeyCode.DOWN:
+                this._onMoveFocus(false);
+                handled = true;
+                break;
+        }
+
+        if (handled) {
+            ev.stopPropagation();
+            ev.preventDefault();
+        }
+    },
+
+    _onMoveFocus: function(up) {
+        var element = this.focusedElement;
+
+        // unclear why this isn't needed
+        // var descending = (up == this.focusDirection) ? this.focusDescending : !this.focusDescending;
+        // this.focusDirection = up;
+
+        var descending = false; // are we currently descending or ascending through the DOM tree?
+        var classes;
+
+        do {
+            var child = up ? element.lastElementChild : element.firstElementChild;
+            var sibling = up ? element.previousElementSibling : element.nextElementSibling;
+
+            if (descending) {
+                if (child) {
+                    element = child;
+                }
+                else if (sibling) {
+                    element = sibling;
+                }
+                else {
+                    descending = false;
+                    element = element.parentElement;
+                }
+            }
+            else {
+                if (sibling) {
+                    element = sibling;
+                    descending = true;
+                }
+                else {
+                    element = element.parentElement;
+                }
+            }
+
+            if (element) {
+                classes = element.classList;
+                if (classes.contains("mx_LeftPanel")) { // we hit the top
+                    element = up ? element.lastElementChild : element.firstElementChild;
+                    descending = true;
+                }
+            }
+
+        } while(element && !(
+            classes.contains("mx_RoomTile") ||
+            classes.contains("mx_SearchBox_search") ||
+            classes.contains("mx_RoomSubList_ellipsis")));
+
+        if (element) {
+            element.focus();
+            this.focusedElement = element;
+            this.focusedDescending = descending;
+        }
+    },
+
+    onHideClick: function() {
+        dis.dispatch({
+            action: 'hide_left_panel',
+        });
+    },
+
+    onSearch: function(term) {
+        this.setState({ searchFilter: term });
+    },
+
+    collectRoomList: function(ref) {
+        this._roomList = ref;
+    },
+
+    render: function() {
+        const RoomList = sdk.getComponent('rooms.RoomList');
+        const TagPanel = sdk.getComponent('structures.TagPanel');
+        const BottomLeftMenu = sdk.getComponent('structures.BottomLeftMenu');
+        const CallPreview = sdk.getComponent('voip.CallPreview');
+
+        let topBox;
+        if (this.context.matrixClient.isGuest()) {
+            const LoginBox = sdk.getComponent('structures.LoginBox');
+            topBox = <LoginBox collapsed={ this.props.collapsed }/>;
+        } else {
+            const SearchBox = sdk.getComponent('structures.SearchBox');
+            topBox = <SearchBox collapsed={ this.props.collapsed } onSearch={ this.onSearch } />;
+        }
+
+        const classes = classNames(
+            "mx_LeftPanel",
+            {
+                "collapsed": this.props.collapsed,
+            },
+        );
+
+        const tagPanelEnabled = !SettingsStore.getValue("TagPanel.disableTagPanel");
+        const tagPanel = tagPanelEnabled ? <TagPanel /> : <div />;
+
+        const containerClasses = classNames(
+            "mx_LeftPanel_container", "mx_fadable",
+            {
+                "mx_LeftPanel_container_collapsed": this.props.collapsed,
+                "mx_LeftPanel_container_hasTagPanel": tagPanelEnabled,
+                "mx_fadable_faded": this.props.disabled,
+            },
+        );
+
+        return (
+            <div className={containerClasses}>
+                { tagPanel }
+                <aside className={classes} onKeyDown={ this._onKeyDown } onFocus={ this._onFocus } onBlur={ this._onBlur }>
+                    { topBox }
+                    <CallPreview ConferenceHandler={VectorConferenceHandler} />
+                    <RoomList
+                        ref={this.collectRoomList}
+                        collapsed={this.props.collapsed}
+                        searchFilter={this.state.searchFilter}
+                        ConferenceHandler={VectorConferenceHandler} />
+                    <BottomLeftMenu collapsed={this.props.collapsed}/>
+                </aside>
+            </div>
+        );
+    }
+});
+
+module.exports = LeftPanel;