feat(invite): Add conference id to dial-in numbers display

DialInNumbersForm has been modified to display a conference id to be used for
dialing into the conference. The changes include:
- Requesting the conference id and adding the conference id to the redux store
- Displaying the conference id in DialInNumbersForm
- Modifying the copy behavior to support copying the new message to clipboard
- DialInNumbersForm does not display until all ajax requests have completed
  successfully. This eliminates the need for the REQUESTING state.

css/modals/invite/_invite.scss

 
 .invite-dialog {
     .dial-in-numbers {
+        .dial-in-numbers-copy {
+            opacity: 0;
+            pointer-events: none;
+            position: fixed;
+            user-select: text;
+            -webkit-user-select: text;
+        }
+
+        .dial-in-numbers-conference-id {
+            color: orange;
+            margin-left: 3px;
+        }
+
         .dial-in-numbers-trigger {
             position: relative;
             width: 100%;

lang/main.json

     },
     "invite": {
         "addPassword": "Add password",
-        "dialInNumbers": "Dial-in telephone numbers",
-        "errorFetchingNumbers": "Failed to obtain dial-in numbers",
+        "callNumber": "Call __number__",
+        "enterId": "Enter Meeting ID: __meetingId__ following by # to dial in from a phone",
+        "howToDialIn": "To dial in, use one of the following numbers and meeting ID",
         "hidePassword": "Hide password",
         "inviteTo": "Invite people to __conferenceName__",
-        "loadingNumbers": "Loading...",
+        "invitedYouTo": "__userName__ has invited you to the __meetingUrl__ conference",
         "locked": "This call is locked. New callers must have the link and enter the password to join.",
-        "noNumbers": "No numbers available",
-        "numbersDisabled": "Dialing in has been disabled",
         "showPassword": "Show password",
         "unlocked": "This call is unlocked. Any new caller with the link may join the call."
     }

react/features/invite/actionTypes.js

 export const UPDATE_DIAL_IN_NUMBERS_FAILED
     = Symbol('UPDATE_DIAL_IN_NUMBERS_FAILED');
 
-/**
- * The type of the action which signals a request for dial-in numbers has been
- * started.
- *
- * {
- *     type: UPDATE_DIAL_IN_NUMBERS_REQUEST
- * }
- */
-export const UPDATE_DIAL_IN_NUMBERS_REQUEST
-    = Symbol('UPDATE_DIAL_IN_NUMBERS_REQUEST');
-
 /**
  * The type of the action which signals a request for dial-in numbers has
  * succeeded.

react/features/invite/actions.js

 
 import {
     UPDATE_DIAL_IN_NUMBERS_FAILED,
-    UPDATE_DIAL_IN_NUMBERS_REQUEST,
     UPDATE_DIAL_IN_NUMBERS_SUCCESS
 } from './actionTypes';
 import { InviteDialog } from './components';
 declare var APP: Object;
 declare var config: Object;
 
+const CONFERENCE_ID_ENDPOINT = config.conferenceMapperUrl;
+const DIAL_IN_NUMBERS_ENDPOINT = config.dialInNumbersUrl;
+const MUC_URL = config && config.hosts && config.hosts.muc;
+
 /**
  * Opens the Invite Dialog.
  *
  */
 export function openInviteDialog() {
     return openDialog(InviteDialog, {
-        conferenceUrl: encodeURI(APP.ConferenceUrl.getInviteUrl()),
-        dialInNumbersUrl: config.dialInNumbersUrl
+        conferenceUrl: encodeURI(APP.ConferenceUrl.getInviteUrl())
     });
 }
 
 /**
- * Sends an ajax request for dial-in numbers.
+ * Sends an ajax requests for dial-in numbers and conference id.
  *
- * @param {string} dialInNumbersUrl - The endpoint for retrieving json that
- * includes numbers for dialing in to a conference.
  * @returns {Function}
  */
-export function updateDialInNumbers(dialInNumbersUrl) {
-    return dispatch => {
-        dispatch({
-            type: UPDATE_DIAL_IN_NUMBERS_REQUEST
+export function updateDialInNumbers() {
+    return (dispatch, getState) => {
+
+        if (!CONFERENCE_ID_ENDPOINT || !DIAL_IN_NUMBERS_ENDPOINT || !MUC_URL) {
+            return;
+        }
+
+        const { room } = getState()['features/base/conference'];
+        const conferenceIdUrl
+            = `${CONFERENCE_ID_ENDPOINT}?conference=${room}@${MUC_URL}`;
+
+        Promise.all([
+            $.getJSON(DIAL_IN_NUMBERS_ENDPOINT),
+            $.getJSON(conferenceIdUrl)
+        ]).then(([ numbersResponse, idResponse ]) => {
+            if (!idResponse.conference || !idResponse.id) {
+                return Promise.reject(idResponse.message);
+            }
+
+            dispatch({
+                type: UPDATE_DIAL_IN_NUMBERS_SUCCESS,
+                conferenceId: idResponse,
+                dialInNumbers: numbersResponse
+            });
+        })
+        .catch(error => {
+            dispatch({
+                type: UPDATE_DIAL_IN_NUMBERS_FAILED,
+                error
+            });
         });
 
-        $.getJSON(dialInNumbersUrl)
-            .success(response =>
-                dispatch({
-                    type: UPDATE_DIAL_IN_NUMBERS_SUCCESS,
-                    response
-                }))
-            .error(error =>
-                dispatch({
-                    type: UPDATE_DIAL_IN_NUMBERS_FAILED,
-                    error
-                }));
     };
 }

react/features/invite/components/DialInNumbersForm.js

 import { connect } from 'react-redux';
 
 import { translate } from '../../base/i18n';
+import { getLocalParticipant } from '../../base/participants';
 
 import { updateDialInNumbers } from '../actions';
 
      * @static
      */
     static propTypes = {
+        /**
+         * The name of the current user.
+         */
+        _currentUserName: React.PropTypes.string,
+
         /**
          * The redux state representing the dial-in numbers feature.
          */
         _dialIn: React.PropTypes.object,
 
         /**
-         * The url for retrieving dial-in numbers.
+         * The url for the JitsiConference.
          */
-        dialInNumbersUrl: React.PropTypes.string,
+        conferenceUrl: React.PropTypes.string,
 
         /**
          * Invoked to send an ajax request for dial-in numbers.
 
         /**
          * The internal reference to the DOM/HTML element backing the React
-         * {@code Component} input. It is necessary for the implementation of
-         * copying to the clipboard.
+         * {@code Component} text area. It is necessary for the implementation
+         * of copying to the clipboard.
          *
          * @private
-         * @type {HTMLInputElement}
+         * @type {HTMLTextAreaElement}
          */
-        this._inputElement = null;
+        this._copyElement = null;
 
         // Bind event handlers so they are only bound once for every instance.
-        this._onClick = this._onClick.bind(this);
+        this._onCopyClick = this._onCopyClick.bind(this);
         this._onOpenChange = this._onOpenChange.bind(this);
         this._onSelect = this._onSelect.bind(this);
-        this._setInput = this._setInput.bind(this);
+        this._setCopyElement = this._setCopyElement.bind(this);
     }
 
     /**
-     * Dispatches a request for numbers if not already present in the redux
-     * store. If numbers are present, sets a default number to display in the
-     * dropdown trigger.
+     * Sets a default number to display in the dropdown trigger.
      *
      * @inheritdoc
      * returns {void}
      */
-    componentDidMount() {
+    componentWillMount() {
         if (this.props._dialIn.numbers) {
             this._setDefaultNumber(this.props._dialIn.numbers);
         } else {
-            this.props.dispatch(
-                updateDialInNumbers(this.props.dialInNumbersUrl));
+            this.props.dispatch(updateDialInNumbers());
         }
     }
 
     }
 
     /**
-     * Implements React's {@link Component#render()}.
+     * Implements React's {@link Component#render()}. Returns null if the
+     * component is not ready for display.
      *
      * @inheritdoc
-     * @returns {ReactElement}
+     * @returns {ReactElement|null}
      */
     render() {
-        const { t, _dialIn } = this.props;
-
-        const numbers = _dialIn.numbers;
-        const items = numbers ? this._formatNumbers(numbers) : [];
+        const { _dialIn, t } = this.props;
+        const { conferenceId, numbers, numbersEnabled } = _dialIn;
+        const { selectedNumber } = this.state;
 
-        const isEnabled = this._isDropdownEnabled();
-        const inputWrapperClassNames
-            = `form-control__container ${isEnabled ? '' : 'is-disabled'}
-                ${_dialIn.loading ? 'is-loading' : ''}`;
-
-        let triggerText = '';
-
-        if (!_dialIn.numbersEnabled) {
-            triggerText = t('invite.numbersDisabled');
-        } else if (this.state.selectedNumber
-            && this.state.selectedNumber.content) {
-            triggerText = this.state.selectedNumber.content;
-        } else if (!numbers && _dialIn.loading) {
-            triggerText = t('invite.loadingNumbers');
-        } else if (_dialIn.error) {
-            triggerText = t('invite.errorFetchingNumbers');
-        } else {
-            triggerText = t('invite.noNumbers');
+        if (!conferenceId || !numbers || !numbersEnabled || !selectedNumber) {
+            return null;
         }
 
+        const items = numbers ? this._formatNumbers(numbers) : [];
+
         return (
             <div className = 'form-control dial-in-numbers'>
                 <label className = 'form-control__label'>
-                    { t('invite.dialInNumbers') }
+                    { t('invite.howToDialIn') }
+                    <span className = 'dial-in-numbers-conference-id'>
+                        { conferenceId }
+                    </span>
                 </label>
-                <div className = { inputWrapperClassNames }>
-                    { this._createDropdownMenu(items, triggerText) }
+                <div className = 'form-control__container'>
+                    { this._createDropdownMenu(items, selectedNumber.content) }
                     <button
                         className = 'button-control button-control_light'
-                        disabled = { !isEnabled }
-                        onClick = { this._onClick }
+                        onClick = { this._onCopyClick }
                         type = 'button'>
                         Copy
                     </button>
                 </div>
+                <textarea
+                    className = 'dial-in-numbers-copy'
+                    readOnly = { true }
+                    ref = { this._setCopyElement }
+                    tabIndex = '-1'
+                    value = { this._generateCopyText() } />
             </div>
         );
     }
                 <input
                     className = 'input-control'
                     readOnly = { true }
-                    ref = { this._setInput }
                     type = 'text'
                     value = { triggerText || '' } />
                 <span className = 'dial-in-numbers-trigger-icon'>
     }
 
     /**
-     * Determines if the dropdown can be opened.
+     * Creates a message describing how to dial in to the conference.
      *
      * @private
-     * @returns {boolean} True if the dropdown can be opened.
+     * @returns {string}
      */
-    _isDropdownEnabled() {
-        const { selectedNumber } = this.state;
+    _generateCopyText() {
+        const welcome = this.props.t('invite.invitedYouTo', {
+            meetingUrl: this.props.conferenceUrl,
+            userName: this.props._currentUserName
+        });
 
-        return Boolean(
-            this.props._dialIn.numbersEnabled
-            && selectedNumber
-            && selectedNumber.content
-        );
+        const callNumber = this.props.t('invite.callNumber',
+            { number: this.state.selectedNumber.number });
+        const stepOne = `1) ${callNumber}`;
+
+        const enterId = this.props.t('invite.enterId',
+            { meetingId: this.props._dialIn.conferenceId });
+        const stepTwo = `2) ${enterId}`;
+
+        return `${welcome}\n${stepOne}\n${stepTwo}`;
     }
 
     /**
      * @private
      * @returns {void}
      */
-    _onClick() {
-        const displayedValue = this.state.selectedNumber.content;
-        const desiredNumber = this.state.selectedNumber.number;
-        const startIndex = displayedValue.indexOf(desiredNumber);
-
+    _onCopyClick() {
         try {
-            this._input.focus();
-            this._input.setSelectionRange(startIndex, displayedValue.length);
+            this._copyElement.select();
             document.execCommand('copy');
-            this._input.blur();
+            this._copyElement.blur();
         } catch (err) {
             logger.error('error when copying the text', err);
         }
      */
     _onOpenChange(dropdownEvent) {
         this.setState({
-            isDropdownOpen: this._isDropdownEnabled() && dropdownEvent.isOpen
+            isDropdownOpen: dropdownEvent.isOpen
         });
     }
 
         });
     }
 
+    /**
+     * Sets the internal reference to the DOM/HTML element backing the React
+     * {@code Component} text area.
+     *
+     * @param {HTMLTextAreaElement} element - The DOM/HTML element for this
+     * {@code Component}'s text area.
+     * @private
+     * @returns {void}
+     */
+    _setCopyElement(element) {
+        this._copyElement = element;
+    }
+
     /**
      * Updates the internal state of the currently selected number by defaulting
      * to the first available number.
             selectedNumber: numbers[0]
         });
     }
-
-    /**
-     * Sets the internal reference to the DOM/HTML element backing the React
-     * {@code Component} input.
-     *
-     * @param {HTMLInputElement} element - The DOM/HTML element for this
-     * {@code Component}'s input.
-     * @private
-     * @returns {void}
-     */
-    _setInput(element) {
-        this._input = element;
-    }
 }
 
 /**
  * @param {Object} state - The Redux state.
  * @private
  * @returns {{
+ *     _currentUserName: React.PropTypes.string,
  *     _dialIn: React.PropTypes.object
  * }}
  */
 function _mapStateToProps(state) {
+    const { name }
+        = getLocalParticipant(state['features/base/participants']);
+
     return {
+        _currentUserName: name,
         _dialIn: state['features/invite/dial-in']
     };
 }

react/features/invite/components/InviteDialog.js

          */
         conferenceUrl: React.PropTypes.string,
 
-        /**
-         * The url for retrieving dial-in numbers.
-         */
-        dialInNumbersUrl: React.PropTypes.string,
-
         /**
          * Invoked to obtain translated strings.
          */
      * @returns {ReactElement}
      */
     render() {
-        const { _conference } = this.props;
+        const { _conference, conferenceUrl } = this.props;
         const titleString
             = this.props.t(
                 'invite.inviteTo',
                 okTitleKey = 'dialog.done'
                 titleString = { titleString }>
                 <div className = 'invite-dialog'>
-                    <ShareLinkForm toCopy = { this.props.conferenceUrl } />
-                    { this._renderDialInNumbersForm() }
+                    <ShareLinkForm toCopy = { conferenceUrl } />
+                    <DialInNumbersForm conferenceUrl = { conferenceUrl } />
                     <PasswordContainer
                         conference = { _conference.conference }
                         locked = { _conference.locked }
             </Dialog>
         );
     }
-
-    /**
-     * Creates a React {@code Component} for displaying and copying to clipboard
-     * telephone numbers for dialing in to the conference.
-     *
-     * @private
-     * @returns {ReactElement|null}
-     */
-    _renderDialInNumbersForm() {
-        return (
-            this.props.dialInNumbersUrl
-                ? <DialInNumbersForm
-                    dialInNumbersUrl = { this.props.dialInNumbersUrl } />
-                : null
-        );
-    }
 }
 
 /**

react/features/invite/reducer.js

 
 import {
     UPDATE_DIAL_IN_NUMBERS_FAILED,
-    UPDATE_DIAL_IN_NUMBERS_REQUEST,
     UPDATE_DIAL_IN_NUMBERS_SUCCESS
 } from './actionTypes';
 
         case UPDATE_DIAL_IN_NUMBERS_FAILED: {
             return {
                 ...state,
-                error: action.error,
-                loading: false
+                error: action.error
             };
         }
 
-        case UPDATE_DIAL_IN_NUMBERS_REQUEST: {
-            return {
-                ...state,
-                error: null,
-                loading: true
-            };
-        }
         case UPDATE_DIAL_IN_NUMBERS_SUCCESS: {
-            const { numbers, numbersEnabled } = action.response;
+            const { numbers, numbersEnabled } = action.dialInNumbers;
 
             return {
+                conferenceId: action.conferenceId.id,
                 error: null,
-                loading: false,
                 numbers,
                 numbersEnabled
             };