ref(Overlay): introduce base class
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paweldomas
parent
98de4c90b5
commit
3c0c823a37
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@ -1,26 +1,40 @@
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/* global $, APP */
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/* global */
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let $overlay;
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import Overlay from '../overlay/Overlay';
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/**
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* Internal function that constructs overlay with guidance how to proceed with
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* gUM prompt.
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* An overlay with guidance how to proceed with gUM prompt.
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*/
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class GUMOverlayImpl extends Overlay {
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/**
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* Constructs overlay with guidance how to proceed with gUM prompt.
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* @param {string} browser - name of browser for which to construct the
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* guidance overlay.
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* @override
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*/
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function buildOverlayHtml(browser) {
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$overlay = $(`
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<div class='overlay_container'>
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<div class='overlay_content'>
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constructor(browser) {
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super();
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this.browser = browser;
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}
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/**
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* @inheritDoc
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*/
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_buildOverlayContent() {
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return `
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<span class="overlay_icon icon-microphone"></span>
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<span class="overlay_icon icon-camera"></span>
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<span data-i18n='[html]userMedia.${browser}GrantPermissions'
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class='overlay_text_small'></span>
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</div>
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</div>`);
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APP.translation.translateElement($overlay);
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<span data-i18n='[html]userMedia.${this.browser}GrantPermissions'
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class='overlay_text_small'></span>`;
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}
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}
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/**
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* Stores GUM overlay instance.
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* @type {GUMOverlayImpl}
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*/
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let overlay;
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export default {
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/**
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@ -29,7 +43,7 @@ export default {
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* or <tt>false</tt> otherwise.
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*/
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isVisible () {
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return $overlay && $overlay.parents('body').length > 0;
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return overlay && overlay.isVisible();
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},
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/**
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* Shows browser-specific overlay with guidance how to proceed with
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@ -38,9 +52,10 @@ export default {
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* guidance overlay.
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*/
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show(browser) {
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!$overlay && buildOverlayHtml(browser);
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!this.isVisible() && $overlay.appendTo('body');
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if (!overlay) {
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overlay = new GUMOverlayImpl(browser);
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}
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overlay.show();
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},
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/**
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@ -48,6 +63,6 @@ export default {
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* gUM prompt.
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*/
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hide() {
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$overlay && $overlay.detach();
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overlay && overlay.hide();
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}
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};
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@ -0,0 +1,82 @@
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/* global $, APP */
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/**
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* Base class for overlay components - the components which are displayed on
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* top of the application with semi-transparent background covering the whole
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* screen.
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*/
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export default class Overlay{
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/**
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* Creates new <tt>Overlay</tt> instance.
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*/
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constructor() {
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/**
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*
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* @type {jQuery}
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*/
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this.$overlay = null;
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}
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/**
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* Template method which should be used by subclasses to provide the overlay
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* content. The contents provided by this method are later subject to
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* the translation using {@link APP.translation.translateElement}.
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* @return {string} HTML representation of the overlay dialog contents.
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* @private
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*/
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_buildOverlayContent() {
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return '';
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}
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/**
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* Constructs the HTML body of the overlay dialog.
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*/
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buildOverlayHtml() {
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let overlayContent = this._buildOverlayContent();
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this.$overlay = $(`
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<div class='overlay_container'>
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<div class='overlay_content'>
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${overlayContent}
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</div>
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</div>`);
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APP.translation.translateElement(this.$overlay);
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}
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/**
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* Checks whether the page reload overlay has been displayed.
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* @return {boolean} <tt>true</tt> if the page reload overlay is currently
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* visible or <tt>false</tt> otherwise.
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*/
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isVisible() {
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return this.$overlay && this.$overlay.parents('body').length > 0;
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}
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/**
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* Template method called just after the overlay is displayed for the first
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* time.
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* @private
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*/
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_onShow() {
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// To be overridden by subclasses.
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}
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/**
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* Shows the overlay dialog adn attaches the underlying HTML representation
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* to the DOM.
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*/
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show() {
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!this.$overlay && this.buildOverlayHtml();
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if (!this.isVisible()) {
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this.$overlay.appendTo('body');
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this._onShow();
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}
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}
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/**
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* Hides the overlay dialog and detaches it's HTML representation from
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* the DOM.
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*/
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hide() {
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this.$overlay && this.$overlay.detach();
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}
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}
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@ -1,27 +1,37 @@
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/* global $, APP, AJS */
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let $overlay;
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import Overlay from '../overlay/Overlay';
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/**
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* An overlay dialog which is shown before the conference is reloaded. Shows
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* a warning message and counts down towards the reload.
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*/
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class PageReloadOverlayImpl extends Overlay{
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/**
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* Creates new <tt>PageReloadOverlayImpl</tt>
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* @param {number} timeoutSeconds how long the overlay dialog will be
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* displayed, before the conference will be reloaded.
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*/
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constructor(timeoutSeconds) {
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super();
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/**
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* Conference reload counter in seconds.
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* @type {number}
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*/
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let timeLeft;
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this.timeLeft = timeoutSeconds;
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/**
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* Conference reload timeout in seconds.
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* @type {number}
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*/
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let timeout;
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this.timeout = timeoutSeconds;
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}
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/**
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* Internal function that constructs overlay with the warning message and count
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* down towards the conference reload.
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* Constructs overlay body with the warning message and count down towards
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* the conference reload.
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* @override
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*/
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function buildReloadOverlayHtml() {
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$overlay = $(`
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<div class='overlay_container'>
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<div class='overlay_content'>
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_buildOverlayContent() {
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return `
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<span data-i18n='dialog.serviceUnavailable'
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class='overlay_text_small'></span>
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<span data-i18n='dialog.conferenceReloadMsg'
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@ -32,57 +42,59 @@ function buildReloadOverlayHtml() {
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</div>
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<span id='reloadSecRemaining' class='overlay_text_small'>
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</span>
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</div>
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</div>
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</div>`);
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APP.translation.translateElement($overlay);
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</div>`;
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}
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/**
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* Updates the progress indicator position and the label with the time left.
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*/
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function updateDisplay() {
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updateDisplay() {
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const timeLeftTxt
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= APP.translation.translateString(
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"dialog.conferenceReloadTimeLeft",
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{ seconds: timeLeft });
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{ seconds: this.timeLeft });
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$("#reloadSecRemaining").text(timeLeftTxt);
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const ratio = (timeout-timeLeft)/timeout;
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const ratio = (this.timeout - this.timeLeft) / this.timeout;
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AJS.progressBars.update("#reloadProgressBar", ratio);
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}
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/**
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* Starts the reload countdown with the animation.
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* @param {number} timeoutSeconds how many seconds before the conference
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* reload will happen.
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* @override
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*/
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function start(timeoutSeconds) {
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timeLeft = timeout = timeoutSeconds;
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_onShow() {
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// Initialize displays
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updateDisplay();
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this.updateDisplay();
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var intervalId = window.setInterval(function() {
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if (timeLeft >= 1) {
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timeLeft -= 1;
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if (this.timeLeft >= 1) {
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this.timeLeft -= 1;
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}
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updateDisplay();
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this.updateDisplay();
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if (timeLeft === 0) {
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if (this.timeLeft === 0) {
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window.clearInterval(intervalId);
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APP.ConferenceUrl.reload();
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}
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}, 1000);
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}.bind(this), 1000);
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console.info(
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"The conference will be reloaded after " + timeLeft + " seconds.");
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"The conference will be reloaded after "
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+ this.timeLeft + " seconds.");
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}
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}
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/**
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* Holds the page reload overlay instance.
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*
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* {@type PageReloadOverlayImpl}
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*/
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let overlay;
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export default {
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/**
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@ -91,7 +103,7 @@ export default {
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* visible or <tt>false</tt> otherwise.
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*/
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isVisible() {
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return $overlay && $overlay.parents('body').length > 0;
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return overlay && overlay.isVisible();
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},
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/**
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* Shows the page reload overlay which will do the conference reload after
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@ -102,11 +114,9 @@ export default {
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*/
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show(timeoutSeconds) {
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!$overlay && buildReloadOverlayHtml();
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if (!this.isVisible()) {
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$overlay.appendTo('body');
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start(timeoutSeconds);
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if (!overlay) {
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overlay = new PageReloadOverlayImpl(timeoutSeconds);
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}
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overlay.show();
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}
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};
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