element-web/src/components/login/ServerConfig.js

/*
Copyright 2015 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';

var React = require('react');
var Modal = require('matrix-react-sdk/lib/Modal');
var sdk = require('matrix-react-sdk')

/**
 * A pure UI component which displays the HS and IS to use.
 */
module.exports = React.createClass({
    displayName: 'ServerConfig',

    propTypes: {
        onHsUrlChanged: React.PropTypes.func,
        onIsUrlChanged: React.PropTypes.func,
        defaultHsUrl: React.PropTypes.string,
        defaultIsUrl: React.PropTypes.string,
        withToggleButton: React.PropTypes.bool,
        delayTimeMs: React.PropTypes.number // time to wait before invoking onChanged
    },

    getDefaultProps: function() {
        return {
            onHsUrlChanged: function() {},
            onIsUrlChanged: function() {},
            withToggleButton: false,
            delayTimeMs: 0
        };
    },

    getInitialState: function() {
        return {
            hs_url: this.props.defaultHsUrl,
            is_url: this.props.defaultIsUrl,
            original_hs_url: this.props.defaultHsUrl,
            original_is_url: this.props.defaultIsUrl,
            // no toggle button = show, toggle button = hide
            configVisible: !this.props.withToggleButton
        }
    },

    onHomeserverChanged: function(ev) {
        this.setState({hs_url: ev.target.value}, function() {
            this._hsTimeoutId = this._waitThenInvoke(this._hsTimeoutId, function() {
                this.props.onHsUrlChanged(this.state.hs_url);
            });
        });
    },

    onIdentityServerChanged: function(ev) {
        this.setState({is_url: ev.target.value}, function() {
            this._isTimeoutId = this._waitThenInvoke(this._isTimeoutId, function() {
                this.props.onIsUrlChanged(this.state.is_url);
            });
        });
    },

    _waitThenInvoke: function(existingTimeoutId, fn) {
        if (existingTimeoutId) {
            clearTimeout(existingTimeoutId);
        }
        return setTimeout(fn.bind(this), this.props.delayTimeMs);
    },

    getHsUrl: function() {
        return this.state.hs_url;
    },

    getIsUrl: function() {
        return this.state.is_url;
    },

    onServerConfigVisibleChange: function(ev) {
        this.setState({
            configVisible: ev.target.checked
        });
    },

    showHelpPopup: function() {
        var ErrorDialog = sdk.getComponent('organisms.ErrorDialog');
        Modal.createDialog(ErrorDialog, {
            title: 'Custom Server Options',
            description: <span>
                You can use the custom server options to log into other Matrix
                servers by specifying a different Home server URL.
                <br/>
                This allows you to use Vector with an existing Matrix account on
                a different Home server.
                <br/>
                <br/>
                You can also set a custom Identity server but this will affect
                people&#39;s ability to find you if you use a server in a group other
                than the main Matrix.org group.
            </span>,
            button: "Dismiss",
            focus: true
        });
    },

    render: function() {
        var serverConfigStyle = {};
        serverConfigStyle.display = this.state.configVisible ? 'block' : 'none';

        var toggleButton;
        if (this.props.withToggleButton) {
            toggleButton = (
                <div>
                    <input className="mx_Login_checkbox" id="advanced" type="checkbox"
                        checked={this.state.configVisible}
                        onChange={this.onServerConfigVisibleChange} />
                    <label className="mx_Login_label" htmlFor="advanced">
                        Use custom server options (advanced)
                    </label>
                </div>
            );
        }

        return (
        <div>
            {toggleButton}
            <div style={serverConfigStyle}>
                <div className="mx_ServerConfig">
                    <label className="mx_Login_label mx_ServerConfig_hslabel" htmlFor="hsurl">
                        Home server URL
                    </label>
                    <input className="mx_Login_field" id="hsurl" type="text"
                        placeholder={this.state.original_hs_url}
                        value={this.state.hs_url}
                        onChange={this.onHomeserverChanged} />
                    <label className="mx_Login_label mx_ServerConfig_islabel" htmlFor="isurl">
                        Identity server URL
                    </label>
                    <input className="mx_Login_field" id="isurl" type="text"
                        placeholder={this.state.original_is_url}
                        value={this.state.is_url}
                        onChange={this.onIdentityServerChanged} />
                    <a className="mx_ServerConfig_help" href="#" onClick={this.showHelpPopup}>
                        What does this mean?
                    </a>
                </div>
            </div>
        </div>
        );
    }
});