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/** |
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* Embed Privacy JavaScript functions. |
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* |
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* @author Epiphyt |
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* @license GPL2 |
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* @package epiphyt\Embed_Privacy |
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*/ |
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document.addEventListener( 'DOMContentLoaded', function() { |
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var checkboxes = document.querySelectorAll( '.embed-privacy-inner .embed-privacy-input' ); |
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var labels = document.querySelectorAll( '.embed-privacy-inner .embed-privacy-label' ); |
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var overlays = document.querySelectorAll( '.embed-privacy-overlay' ); |
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var overlayLinks = document.querySelectorAll( '.embed-privacy-overlay a' ); |
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|
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initOverlays( overlays, overlayLinks, checkboxes, labels ); |
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initBuddyPressActivityStream(); |
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optOut(); |
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setMinHeight(); |
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|
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window.addEventListener( 'resize', function() { |
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setMinHeight(); |
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} ); |
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|
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/** |
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* Clicking on a checkbox to always enable/disable an embed provider. |
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* |
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* @since 1.2.0 |
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* |
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* @param {HTMLElement} target Target element |
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*/ |
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function checkboxActivation( target ) { |
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const container = target.closest( '.embed-privacy-container' ); |
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var embedProvider = target.getAttribute( 'data-embed-provider' ); |
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var cookie = ( get_cookie( 'embed-privacy' ) ? JSON.parse( get_cookie( 'embed-privacy' ) ) : '' ); |
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|
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if ( target.checked ) { |
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// add|update the cookie's value |
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if ( cookie !== null && Object.keys( cookie ).length !== 0 && cookie.constructor === Object ) { |
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cookie[ embedProvider ] = true; |
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|
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set_cookie( 'embed-privacy', JSON.stringify( cookie ), 365 ); |
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} |
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else { |
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set_cookie( 'embed-privacy', '{"' + embedProvider + '":true}', 365 ); |
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} |
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|
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enableAlwaysActiveProviders( document.querySelectorAll( '.embed-privacy-overlay' ) ); |
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|
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// focus first element in container, but not for opt-out shortcode |
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if ( container ) { |
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container.querySelector( '.embed-privacy-content > :first-child' ).focus(); |
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} |
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} |
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else if ( cookie !== null ) { |
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delete cookie[ embedProvider ]; |
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|
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if ( Object.keys( cookie ).length !== 0 ) { |
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set_cookie( 'embed-privacy', JSON.stringify( cookie ), 365 ); |
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} |
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else { |
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remove_cookie( 'embed-privacy' ); |
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} |
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} |
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} |
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|
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/** |
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* Check whether to enable an always active provider by default. |
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* |
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* @since 1.2.0 |
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* |
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* @param {HTMLElement[]} currentOverlays List of current overlays |
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*/ |
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function enableAlwaysActiveProviders( currentOverlays ) { |
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var cookie = ( get_cookie( 'embed-privacy' ) ? JSON.parse( get_cookie( 'embed-privacy' ) ) : '' ); |
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|
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if ( ! currentOverlays ) { |
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currentOverlays = overlays; |
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} |
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|
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if ( cookie === null || ! Object.keys( cookie ).length ) { |
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return; |
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} |
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|
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var providers = Object.keys( cookie ); |
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|
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for ( var i = 0; i < currentOverlays.length; i++ ) { |
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var provider = currentOverlays[ i ].parentNode.getAttribute( 'data-embed-provider' ); |
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|
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if ( providers.includes( provider ) ) { |
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currentOverlays[ i ].click(); |
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} |
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} |
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} |
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|
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/** |
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* Get always active providers from cookie. |
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* |
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* @since 1.4.8 |
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* |
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* @return {string[]} List of always active providers |
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*/ |
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function getAlwaysActiveProviders() { |
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const cookie = ( get_cookie( 'embed-privacy' ) ? JSON.parse( get_cookie( 'embed-privacy' ) ) : '' ); |
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|
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if ( ! cookie ) { |
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return []; |
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} |
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|
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return Object.keys( cookie ); |
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} |
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|
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/** |
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* Initialize overlay functionality. |
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* |
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* @since 1.11.0 |
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* |
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* @param {HTMLElement[]} embedOverlays List of embed overlays |
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* @param {HTMLElement[]} overlayLinks List of embed overlay links |
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* @param {HTMLElement[]} checkboxes List of embed overlay checkbox inputs |
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* @param {HTMLElement[]} labels List of embed overlay labels |
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*/ |
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function initOverlays( embedOverlays, overlayLinks, checkboxes, labels ) { |
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for ( var i = 0; i < embedOverlays.length; i++ ) { |
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embedOverlays[ i ].addEventListener( 'click', function( event ) { |
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if ( event.currentTarget.tagName !== 'INPUT' ) { |
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overlayClick( event.currentTarget ); |
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} |
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} ); |
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|
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const button = embedOverlays[ i ].parentNode.querySelector( '.embed-privacy-enable' ); |
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|
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if ( ! button ) { |
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continue; |
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} |
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|
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button.addEventListener( 'click', function( event ) { |
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overlayClick( event.currentTarget.parentNode.querySelector( '.embed-privacy-overlay' ) ); |
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event.currentTarget.parentNode.removeChild( event.currentTarget ); // IE11 doesn't support .remove() |
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} ); |
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button.addEventListener( 'keypress', function( event ) { |
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if ( event.code === 'Enter' || event.code === 'Space' ) { |
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event.preventDefault(); // prevent space from scrolling the page |
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overlayClick( event.currentTarget.parentNode.querySelector( '.embed-privacy-overlay' ) ); |
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event.currentTarget.parentNode.removeChild( event.currentTarget ); // IE11 doesn't support .remove() |
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} |
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} ); |
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} |
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|
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for ( var i = 0; i < overlayLinks.length; i++ ) { |
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overlayLinks[ i ].addEventListener( 'click', function( event ) { |
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// don't trigger the overlays click |
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event.stopPropagation(); |
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} ); |
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} |
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|
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for ( var i = 0; i < checkboxes.length; i++ ) { |
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checkboxes[ i ].addEventListener( 'click', function( event ) { |
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// don't trigger the overlays click |
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event.stopPropagation(); |
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|
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checkboxActivation( event.currentTarget, [ event.currentTarget.closest( '.embed-privacy-overlay' ) ] ); |
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} ); |
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} |
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|
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for ( var i = 0; i < labels.length; i++ ) { |
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labels[ i ].addEventListener( 'click', function( event ) { |
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// don't trigger the overlays click |
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event.stopPropagation(); |
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} ); |
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} |
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|
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enableAlwaysActiveProviders( embedOverlays ); |
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} |
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|
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/** |
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* Initialize support for BuddyPress activity stream. |
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*/ |
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function initBuddyPressActivityStream() { |
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const activityStream = document.getElementById( 'activity-stream' ); |
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|
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if ( ! activityStream ) { |
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return; |
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} |
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|
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const activityObserver = new MutationObserver( ( mutations ) => { |
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for ( const mutation of mutations ) { |
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const checkboxes = mutation.target.querySelectorAll( '.embed-privacy-inner .embed-privacy-input' ); |
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const labels = mutation.target.querySelectorAll( '.embed-privacy-inner .embed-privacy-label' ); |
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const overlays = mutation.target.querySelectorAll( '.embed-privacy-overlay' ); |
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const overlayLinks = mutation.target.querySelectorAll( '.embed-privacy-overlay a' ); |
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|
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if ( overlays.length ) { |
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initOverlays( overlays, overlayLinks, checkboxes, labels ); |
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} |
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} |
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} ); |
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|
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activityObserver.observe( activityStream, { |
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childList: true, |
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} ); |
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} |
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|
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/** |
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* Opting in/out for embed providers. |
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* |
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* @since 1.2.0 |
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*/ |
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function optOut() { |
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const optOutContainer = document.querySelector( '.embed-privacy-opt-out' ); |
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|
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if ( ! optOutContainer ) { |
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return; |
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} |
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|
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var optOutCheckboxes = optOutContainer.querySelectorAll( '.embed-privacy-opt-out-input' ); |
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const showAll = optOutContainer.getAttribute( 'data-show-all' ) === '1'; |
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|
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if ( ! optOutCheckboxes ) { |
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return; |
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} |
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|
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const alwaysActiveProviders = getAlwaysActiveProviders(); |
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|
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for ( var i = 0; i < optOutCheckboxes.length; i++ ) { |
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if ( alwaysActiveProviders.indexOf( optOutCheckboxes[ i ].getAttribute( 'data-embed-provider' ) ) !== -1 ) { |
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optOutCheckboxes[ i ].checked = true; |
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} |
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else if ( ! showAll ) { |
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optOutCheckboxes[ i ].parentNode.parentNode.classList.add( 'is-hidden' ); |
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|
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continue; |
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} |
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|
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optOutCheckboxes[ i ].addEventListener( 'click', function( event ) { |
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var currentTarget = event.currentTarget; |
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|
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if ( ! currentTarget ) { |
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return; |
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} |
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|
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checkboxActivation( currentTarget ); |
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} ); |
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} |
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|
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const nonHiddenProviders = optOutContainer.querySelectorAll( '.embed-privacy-provider:not(.is-hidden)' ); |
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|
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// remove the container completely if there is no provider to display |
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if ( ! showAll && ! nonHiddenProviders.length ) { |
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optOutContainer.remove(); |
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} |
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} |
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|
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/** |
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* Clicking on an overlay. |
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* |
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* @since 1.2.0 |
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* |
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* @param {element} target Target element |
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*/ |
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function overlayClick( target ) { |
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var embedContainer = target.parentNode; |
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var embedContent = target.nextElementSibling; |
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|
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embedContainer.classList.remove( 'is-disabled' ); |
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embedContainer.classList.add( 'is-enabled' ); |
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// hide the embed overlay |
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target.style.display = 'none'; |
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// get stored content from JavaScript |
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var embedObject = JSON.parse( window[ '_' + target.parentNode.getAttribute( 'data-embed-id' ) ] ); |
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|
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embedContent.innerHTML = htmlentities_decode( embedObject.embed ); |
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|
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// reset wrapper inline CSS set in setMinHeight() |
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var wrapper = embedContainer.parentNode; |
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|
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if ( wrapper.classList.contains( 'wp-block-embed__wrapper' ) ) { |
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wrapper.style.removeProperty( 'height' ); |
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} |
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|
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// get all script tags inside the embed |
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var scriptTags = embedContent.querySelectorAll( 'script' ); |
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|
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// insert every script tag inside the embed as a new script |
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// to execute it |
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for ( var n = 0; n < scriptTags.length; n++ ) { |
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var element = document.createElement( 'script' ); |
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|
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if ( scriptTags[ n ].src ) { |
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// if script tag has a src attribute |
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element.src = scriptTags[ n ].src; |
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} |
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else { |
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// if script tag has content |
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element.innerHTML = scriptTags[ n ].innerHTML; |
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} |
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|
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// append it to body |
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embedContent.appendChild( element ); |
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} |
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|
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// focus first element in container |
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embedContainer.querySelector( '.embed-privacy-content > :first-child' ).focus(); |
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|
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if ( typeof jQuery !== 'undefined' ) { |
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const videoShortcode = jQuery( '.wp-video-shortcode' ); |
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|
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if ( videoShortcode.length ) { |
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videoShortcode.mediaelementplayer(); |
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} |
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} |
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|
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if ( embedContainer.getAttribute( 'data-embed-provider' ) === 'instagram' ) { |
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const interval = setInterval( () => { |
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if ( window.instgrm ) { |
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window.instgrm.Embeds.process(); |
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clearInterval( interval ); |
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} |
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}, 100 ); |
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} |
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} |
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|
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/** |
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* Calculate min height of the embed wrapper depending of the overlay content. |
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*/ |
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function setMinHeight() { |
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for ( var i = 0; i < overlays.length; i++ ) { |
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var wrapper = overlays[ i ].parentNode.parentNode; |
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|
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if ( ! wrapper.classList.contains( 'wp-block-embed__wrapper' ) ) { |
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continue; |
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} |
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|
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wrapper.style.removeProperty( 'height' ); |
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|
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if ( wrapper.offsetHeight < overlays[ i ].offsetHeight ) { |
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wrapper.style.height = overlays[ i ].offsetHeight + 'px'; |
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} |
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} |
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} |
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} ); |
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|
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/** |
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* Get a cookie. |
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* |
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* @link https://stackoverflow.com/a/24103596/3461955 |
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* |
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* @param {string} name The name of the cookie |
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*/ |
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function get_cookie( name ) { |
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var nameEQ = name + '='; |
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var ca = document.cookie.split( ';' ); |
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for ( var i = 0; i < ca.length; i++ ) { |
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var c = ca[ i ]; |
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while ( c.charAt( 0 ) == ' ' ) c = c.substring( 1, c.length ); |
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if ( c.indexOf( nameEQ ) == 0 ) return c.substring( nameEQ.length, c.length ); |
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} |
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return null; |
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} |
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|
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/** |
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* Decode a string with HTML entities. |
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* |
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* @param {string} content The content to decode |
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* @return {string} The decoded content |
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*/ |
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function htmlentities_decode( content ) { |
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var textarea = document.createElement( 'textarea' ); |
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|
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textarea.innerHTML = content; |
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|
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return textarea.value; |
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} |
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|
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/** |
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* Remove a cookie. |
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* |
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* @link https://stackoverflow.com/a/24103596/3461955 |
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* |
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* @param {string} name The name of the cookie |
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*/ |
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function remove_cookie( name ) { |
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document.cookie = name + '=; expires=0; path=/'; |
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} |
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|
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/** |
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* Set a cookie. |
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* |
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* @link https://stackoverflow.com/a/24103596/3461955 |
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* |
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* @param {string} name The name of the cookie |
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* @param {string} value The value of the cookie |
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* @param {number} days The expiration in days |
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*/ |
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function set_cookie( name, value, days ) { |
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var expires = ''; |
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if ( days ) { |
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var date = new Date(); |
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date.setTime( date.getTime() + ( days * 24 * 60 * 60 * 1000 ) ); |
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expires = '; expires=' + date.toUTCString(); |
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} |
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document.cookie = name + '=' + ( value || '' ) + expires + '; path=/'; |
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} |
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|
