mirror of
https://github.com/element-hq/element-web
synced 2024-11-24 18:25:49 +03:00
267 lines
8.8 KiB
JavaScript
267 lines
8.8 KiB
JavaScript
/*
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Copyright 2015, 2016 OpenMarket Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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'use strict';
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const React = require('react');
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const ReactDOM = require('react-dom');
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import PropTypes from 'prop-types';
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import Analytics from './Analytics';
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import sdk from './index';
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import dis from './dispatcher';
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import { _t } from './languageHandler';
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const DIALOG_CONTAINER_ID = "mx_Dialog_Container";
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/**
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* Wrap an asynchronous loader function with a react component which shows a
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* spinner until the real component loads.
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*/
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const AsyncWrapper = React.createClass({
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propTypes: {
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/** A promise which resolves with the real component
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*/
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prom: PropTypes.object.isRequired,
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},
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getInitialState: function() {
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return {
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component: null,
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error: null,
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};
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},
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componentWillMount: function() {
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this._unmounted = false;
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// XXX: temporary logging to try to diagnose
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// https://github.com/vector-im/riot-web/issues/3148
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console.log('Starting load of AsyncWrapper for modal');
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this.props.prom.then((result) => {
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if (this._unmounted) {
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return;
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}
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// Take the 'default' member if it's there, then we support
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// passing in just an import()ed module, since ES6 async import
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// always returns a module *namespace*.
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const component = result.default ? result.default : result;
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this.setState({component});
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}).catch((e) => {
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console.warn('AsyncWrapper promise failed', e);
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this.setState({error: e});
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});
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},
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componentWillUnmount: function() {
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this._unmounted = true;
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},
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_onWrapperCancelClick: function() {
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this.props.onFinished(false);
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},
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render: function() {
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const {loader, ...otherProps} = this.props;
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if (this.state.component) {
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const Component = this.state.component;
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return <Component {...otherProps} />;
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} else if (this.state.error) {
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const BaseDialog = sdk.getComponent('views.dialogs.BaseDialog');
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const DialogButtons = sdk.getComponent('views.elements.DialogButtons');
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return <BaseDialog onFinished={this.props.onFinished}
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title={_t("Error")}
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>
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{_t("Unable to load! Check your network connectivity and try again.")}
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<DialogButtons primaryButton={_t("Dismiss")}
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onPrimaryButtonClick={this._onWrapperCancelClick}
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hasCancel={false}
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/>
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</BaseDialog>;
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} else {
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// show a spinner until the component is loaded.
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const Spinner = sdk.getComponent("elements.Spinner");
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return <Spinner />;
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}
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},
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});
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class ModalManager {
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constructor() {
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this._counter = 0;
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// The modal to prioritise over all others. If this is set, only show
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// this modal. Remove all other modals from the stack when this modal
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// is closed.
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this._priorityModal = null;
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// A list of the modals we have stacked up, with the most recent at [0]
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this._modals = [
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/* {
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elem: React component for this dialog
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onFinished: caller-supplied onFinished callback
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className: CSS class for the dialog wrapper div
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} */
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];
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this.closeAll = this.closeAll.bind(this);
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}
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getOrCreateContainer() {
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let container = document.getElementById(DIALOG_CONTAINER_ID);
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if (!container) {
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container = document.createElement("div");
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container.id = DIALOG_CONTAINER_ID;
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document.body.appendChild(container);
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}
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return container;
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}
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createTrackedDialog(analyticsAction, analyticsInfo, ...rest) {
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Analytics.trackEvent('Modal', analyticsAction, analyticsInfo);
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return this.createDialog(...rest);
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}
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createDialog(Element, ...rest) {
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return this.createDialogAsync(new Promise(resolve => resolve(Element)), ...rest);
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}
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createTrackedDialogAsync(analyticsAction, analyticsInfo, ...rest) {
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Analytics.trackEvent('Modal', analyticsAction, analyticsInfo);
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return this.createDialogAsync(...rest);
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}
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/**
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* Open a modal view.
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*
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* This can be used to display a react component which is loaded as an asynchronous
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* webpack component. To do this, set 'loader' as:
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*
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* (cb) => {
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* require(['<module>'], cb);
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* }
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*
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* @param {Promise} prom a promise which resolves with a React component
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* which will be displayed as the modal view.
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*
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* @param {Object} props properties to pass to the displayed
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* component. (We will also pass an 'onFinished' property.)
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*
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* @param {String} className CSS class to apply to the modal wrapper
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*
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* @param {boolean} isPriorityModal if true, this modal will be displayed regardless
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* of other modals that are currently in the stack.
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* Also, when closed, all modals will be removed
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* from the stack.
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*/
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createDialogAsync(prom, props, className, isPriorityModal) {
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const self = this;
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const modal = {};
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// never call this from onFinished() otherwise it will loop
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//
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// nb explicit function() rather than arrow function, to get `arguments`
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const closeDialog = function() {
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if (props && props.onFinished) props.onFinished.apply(null, arguments);
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const i = self._modals.indexOf(modal);
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if (i >= 0) {
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self._modals.splice(i, 1);
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}
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if (self._priorityModal === modal) {
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self._priorityModal = null;
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// XXX: This is destructive
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self._modals = [];
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}
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self._reRender();
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};
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// don't attempt to reuse the same AsyncWrapper for different dialogs,
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// otherwise we'll get confused.
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const modalCount = this._counter++;
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// FIXME: If a dialog uses getDefaultProps it clobbers the onFinished
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// property set here so you can't close the dialog from a button click!
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modal.elem = (
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<AsyncWrapper key={modalCount} prom={prom} {...props}
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onFinished={closeDialog} />
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);
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modal.onFinished = props ? props.onFinished : null;
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modal.className = className;
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if (isPriorityModal) {
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// XXX: This is destructive
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this._priorityModal = modal;
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} else {
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this._modals.unshift(modal);
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}
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this._reRender();
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return {close: closeDialog};
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}
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closeAll() {
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const modals = this._modals;
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this._modals = [];
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for (let i = 0; i < modals.length; i++) {
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const m = modals[i];
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if (m.onFinished) {
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m.onFinished(false);
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}
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}
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this._reRender();
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}
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_reRender() {
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if (this._modals.length == 0 && !this._priorityModal) {
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// If there is no modal to render, make all of Riot available
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// to screen reader users again
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dis.dispatch({
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action: 'aria_unhide_main_app',
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});
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ReactDOM.unmountComponentAtNode(this.getOrCreateContainer());
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return;
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}
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// Hide the content outside the modal to screen reader users
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// so they won't be able to navigate into it and act on it using
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// screen reader specific features
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dis.dispatch({
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action: 'aria_hide_main_app',
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});
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const modal = this._priorityModal ? this._priorityModal : this._modals[0];
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const dialog = (
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<div className={"mx_Dialog_wrapper " + (modal.className ? modal.className : '')}>
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<div className="mx_Dialog">
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{ modal.elem }
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</div>
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<div className="mx_Dialog_background" onClick={this.closeAll}></div>
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</div>
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);
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ReactDOM.render(dialog, this.getOrCreateContainer());
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}
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}
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if (!global.singletonModalManager) {
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global.singletonModalManager = new ModalManager();
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}
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export default global.singletonModalManager;
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