/* global wpcom, jetpackCarouselStrings, DocumentTouch */
( function () {
'use strict';
var swiper;
/////////////////////////////////////
// Utility functions
/////////////////////////////////////
var util = ( function () {
var noop = function () {};
function texturize( text ) {
// Ensure we get a string.
text = text + '';
text = text.replace( /'/g, '’' ).replace( /'/g, '’' );
text = text
.replace( /"/g, '”' )
.replace( /"/g, '”' )
.replace( /"/g, '”' )
.replace( /[\u201D]/g, '”' );
// Untexturize allowed HTML tags params double-quotes.
text = text.replace( /([\w]+)=&#[\d]+;(.+?)&#[\d]+;/g, '$1="$2"' );
return text.trim();
}
function applyReplacements( text, replacements ) {
if ( ! text ) {
return;
}
if ( ! replacements ) {
return text;
}
return text.replace( /{(\d+)}/g, function ( match, number ) {
return typeof replacements[ number ] !== 'undefined' ? replacements[ number ] : match;
} );
}
function getBackgroundImage( imgEl ) {
var canvas = document.createElement( 'canvas' ),
context = canvas.getContext && canvas.getContext( '2d' );
if ( ! imgEl ) {
return;
}
context.filter = 'blur(20px) ';
context.drawImage( imgEl, 0, 0 );
var url = canvas.toDataURL( 'image/png' );
canvas = null;
return url;
}
return {
noop: noop,
texturize: texturize,
applyReplacements: applyReplacements,
getBackgroundImage: getBackgroundImage,
};
} )();
/////////////////////////////////////
// DOM-related utility functions
/////////////////////////////////////
var domUtil = ( function () {
// Helper matches function (not a polyfill), compatible with IE 11.
function matches( el, sel ) {
if ( Element.prototype.matches ) {
return el.matches( sel );
}
if ( Element.prototype.msMatchesSelector ) {
return el.msMatchesSelector( sel );
}
}
// Helper closest parent node function (not a polyfill) based on
// https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
function closest( el, sel ) {
if ( el.closest ) {
return el.closest( sel );
}
var current = el;
do {
if ( matches( current, sel ) ) {
return current;
}
current = current.parentElement || current.parentNode;
} while ( current !== null && current.nodeType === 1 );
return null;
}
function hide( el ) {
if ( el ) {
el.style.display = 'none';
}
}
function show( el ) {
if ( el ) {
// Everything we show and hide in Carousel is currently a block,
// so we can make this really straightforward.
el.style.display = 'block';
}
}
function fade( el, start, end, callback ) {
if ( ! el ) {
return callback();
}
// Prepare for transition.
// Ensure the item is in the render tree, in its initial state.
el.style.removeProperty( 'display' );
el.style.opacity = start;
el.style.transition = 'opacity 0.2s';
el.style.pointerEvents = 'none';
var finished = function ( e ) {
if ( e.target === el && e.propertyName === 'opacity' ) {
el.style.removeProperty( 'transition' );
el.style.removeProperty( 'opacity' );
el.style.removeProperty( 'pointer-events' );
el.removeEventListener( 'transitionend', finished );
el.removeEventListener( 'transitioncancel', finished );
callback();
}
};
requestAnimationFrame( function () {
// Double rAF for browser compatibility.
requestAnimationFrame( function () {
el.addEventListener( 'transitionend', finished );
el.addEventListener( 'transitioncancel', finished );
// Trigger transition.
el.style.opacity = end;
} );
} );
}
function fadeIn( el, callback ) {
callback = callback || util.noop;
fade( el, '0', '1', callback );
}
function fadeOut( el, callback ) {
callback = callback || util.noop;
fade( el, '1', '0', function () {
if ( el ) {
el.style.display = 'none';
}
callback();
} );
}
function emitEvent( el, type, detail ) {
var e;
try {
e = new CustomEvent( type, {
bubbles: true,
cancelable: true,
detail: detail || null,
} );
} catch ( err ) {
e = document.createEvent( 'CustomEvent' );
e.initCustomEvent( type, true, true, detail || null );
}
el.dispatchEvent( e );
}
// From: https://easings.net/#easeInOutQuad
function easeInOutQuad( num ) {
return num < 0.5 ? 2 * num * num : 1 - Math.pow( -2 * num + 2, 2 ) / 2;
}
function getFooterClearance( container ) {
var footer = container.querySelector( '.jp-carousel-info-footer' );
var infoArea = container.querySelector( '.jp-carousel-info-extra' );
var contentArea = container.querySelector( '.jp-carousel-info-content-wrapper' );
if ( footer && infoArea && contentArea ) {
var styles = window.getComputedStyle( infoArea );
var padding = parseInt( styles.paddingTop, 10 ) + parseInt( styles.paddingBottom, 10 );
padding = isNaN( padding ) ? 0 : padding;
return contentArea.offsetHeight + footer.offsetHeight + padding;
}
return 0;
}
function isTouch() {
return (
'ontouchstart' in window || ( window.DocumentTouch && document instanceof DocumentTouch )
);
}
function scrollToElement( el, container, callback ) {
if ( ! el || ! container ) {
if ( callback ) {
return callback();
}
return;
}
// For iOS Safari compatibility, use JS to set the minimum height.
var infoArea = container.querySelector( '.jp-carousel-info-extra' );
if ( infoArea ) {
// 64px is the same height as `.jp-carousel-info-footer` in the CSS.
infoArea.style.minHeight = window.innerHeight - 64 + 'px';
}
var isScrolling = true;
var startTime = Date.now();
var duration = 300;
var originalPosition = container.scrollTop;
var targetPosition = Math.max(
0,
el.offsetTop - Math.max( 0, window.innerHeight - getFooterClearance( container ) )
);
var distance = targetPosition - container.scrollTop;
distance = Math.min( distance, container.scrollHeight - window.innerHeight );
function stopScroll() {
isScrolling = false;
}
function runScroll() {
var now = Date.now();
var progress = easeInOutQuad( ( now - startTime ) / duration );
progress = progress > 1 ? 1 : progress;
var newVal = progress * distance;
container.scrollTop = originalPosition + newVal;
if ( now <= startTime + duration && isScrolling ) {
return requestAnimationFrame( runScroll );
}
if ( callback ) {
callback();
}
if ( infoArea ) {
infoArea.style.minHeight = '';
}
isScrolling = false;
container.removeEventListener( 'wheel', stopScroll );
}
// Allow scroll to be cancelled by user interaction.
container.addEventListener( 'wheel', stopScroll );
runScroll();
}
function getJSONAttribute( el, attr ) {
if ( ! el || ! el.hasAttribute( attr ) ) {
return undefined;
}
try {
return JSON.parse( el.getAttribute( attr ) );
} catch ( e ) {
return undefined;
}
}
function convertToPlainText( html ) {
var dummy = document.createElement( 'div' );
dummy.textContent = html;
return dummy.innerHTML;
}
function stripHTML( text ) {
return text.replace( /<[^>]*>?/gm, '' );
}
return {
closest: closest,
matches: matches,
hide: hide,
show: show,
fadeIn: fadeIn,
fadeOut: fadeOut,
scrollToElement: scrollToElement,
getJSONAttribute: getJSONAttribute,
convertToPlainText: convertToPlainText,
stripHTML: stripHTML,
emitEvent: emitEvent,
isTouch: isTouch,
};
} )();
/////////////////////////////////////
// Carousel implementation
/////////////////////////////////////
function init() {
var commentInterval;
var screenPadding;
var originalOverflow;
var originalHOverflow;
var scrollPos;
var lastKnownLocationHash = '';
var isUserTyping = false;
var gallerySelector =
'div.gallery, div.tiled-gallery, ul.wp-block-gallery, ul.blocks-gallery-grid, ' +
'figure.wp-block-gallery.has-nested-images, div.wp-block-jetpack-tiled-gallery, a.single-image-gallery';
// Selector for items within a gallery or tiled gallery.
var galleryItemSelector =
'.gallery-item, .tiled-gallery-item, .blocks-gallery-item, ' + ' .tiled-gallery__item';
// Selector for all items including single images.
var itemSelector = galleryItemSelector + ', .wp-block-image';
var carousel = {};
var stat =
typeof wpcom !== 'undefined' && wpcom.carousel && wpcom.carousel.stat
? wpcom.carousel.stat
: util.noop;
var pageview =
typeof wpcom !== 'undefined' && wpcom.carousel && wpcom.carousel.pageview
? wpcom.carousel.pageview
: util.noop;
function handleKeyboardEvent( e ) {
if ( ! isUserTyping ) {
switch ( e.which ) {
case 38: // up
e.preventDefault();
carousel.overlay.scrollTop -= 100;
break;
case 40: // down
e.preventDefault();
carousel.overlay.scrollTop += 100;
break;
case 39: // right
e.preventDefault();
swiper.slideNext();
break;
case 37: // left
case 8: // backspace
e.preventDefault();
swiper.slidePrev();
break;
case 27: // escape
e.preventDefault();
closeCarousel();
break;
default:
break;
}
}
}
function disableKeyboardNavigation() {
isUserTyping = true;
}
function enableKeyboardNavigation() {
isUserTyping = false;
}
function calculatePadding() {
var baseScreenPadding = 110;
screenPadding = baseScreenPadding;
if ( window.innerWidth <= 760 ) {
screenPadding = Math.round( ( window.innerWidth / 760 ) * baseScreenPadding );
if ( screenPadding < 40 && domUtil.isTouch() ) {
screenPadding = 0;
}
}
}
function initializeCarousel() {
if ( ! carousel.overlay ) {
carousel.overlay = document.querySelector( '.jp-carousel-overlay' );
carousel.container = carousel.overlay.querySelector( '.jp-carousel-wrap' );
carousel.gallery = carousel.container.querySelector( '.jp-carousel' );
carousel.info = carousel.overlay.querySelector( '.jp-carousel-info' );
carousel.caption = carousel.info.querySelector( '.jp-carousel-caption' );
carousel.commentField = carousel.overlay.querySelector(
'#jp-carousel-comment-form-comment-field'
);
carousel.emailField = carousel.overlay.querySelector(
'#jp-carousel-comment-form-email-field'
);
carousel.authorField = carousel.overlay.querySelector(
'#jp-carousel-comment-form-author-field'
);
carousel.urlField = carousel.overlay.querySelector( '#jp-carousel-comment-form-url-field' );
calculatePadding();
[
carousel.commentField,
carousel.emailField,
carousel.authorField,
carousel.urlField,
].forEach( function ( field ) {
if ( field ) {
field.addEventListener( 'focus', disableKeyboardNavigation );
field.addEventListener( 'blur', enableKeyboardNavigation );
}
} );
carousel.overlay.addEventListener( 'click', function ( e ) {
var target = e.target;
var isTargetCloseHint = !! domUtil.closest( target, '.jp-carousel-close-hint' );
var isSmallScreen = !! window.matchMedia( '(max-device-width: 760px)' ).matches;
if ( target === carousel.overlay ) {
if ( isSmallScreen ) {
return;
} else {
closeCarousel();
}
} else if ( isTargetCloseHint ) {
closeCarousel();
} else if ( target.classList.contains( 'jp-carousel-image-download' ) ) {
stat( 'download_original_click' );
} else if ( target.classList.contains( 'jp-carousel-comment-login' ) ) {
handleCommentLoginClick( e );
} else if ( domUtil.closest( target, '#jp-carousel-comment-form-container' ) ) {
handleCommentFormClick( e );
} else if (
domUtil.closest( target, '.jp-carousel-photo-icons-container' ) ||
target.classList.contains( 'jp-carousel-photo-title' )
) {
handleFooterElementClick( e );
} else if ( ! domUtil.closest( target, '.jp-carousel-info' ) ) {
return;
}
} );
window.addEventListener( 'keydown', handleKeyboardEvent );
carousel.overlay.addEventListener( 'jp_carousel.afterOpen', function () {
enableKeyboardNavigation();
// Don't show navigation if there's only one image.
if ( carousel.slides.length <= 1 ) {
return;
}
// Show dot pagination if slide count is <= 5, otherwise show n/total.
if ( carousel.slides.length <= 5 ) {
domUtil.show( carousel.info.querySelector( '.jp-swiper-pagination' ) );
} else {
domUtil.show( carousel.info.querySelector( '.jp-carousel-pagination' ) );
}
} );
carousel.overlay.addEventListener( 'jp_carousel.beforeClose', function () {
disableKeyboardNavigation();
// Fixes some themes where closing carousel brings view back to top.
document.documentElement.style.removeProperty( 'height' );
// If we disable the swiper (because there's only one image)
// we have to re-enable it here again as Swiper doesn't, for some reason,
// show the navigation buttons again after reinitialization.
if ( swiper ) {
swiper.enable();
}
// Hide pagination.
domUtil.hide( carousel.info.querySelector( '.jp-swiper-pagination' ) );
domUtil.hide( carousel.info.querySelector( '.jp-carousel-pagination' ) );
} );
carousel.overlay.addEventListener( 'jp_carousel.afterClose', function () {
// don't force the browser back when the carousel closes.
if ( window.history.pushState ) {
history.pushState(
'',
document.title,
window.location.pathname + window.location.search
);
} else {
window.location.href = '';
}
lastKnownLocationHash = '';
carousel.isOpen = false;
} );
// Prevent native browser zooming
carousel.overlay.addEventListener( 'touchstart', function ( e ) {
if ( e.touches.length > 1 ) {
e.preventDefault();
}
} );
}
}
function handleCommentLoginClick() {
var slide = carousel.currentSlide;
var attachmentId = slide ? slide.attrs.attachmentId : '0';
window.location.href = jetpackCarouselStrings.login_url + '%23jp-carousel-' + attachmentId;
}
function updatePostResults( msg, isSuccess ) {
var results = carousel.overlay.querySelector( '#jp-carousel-comment-post-results' );
var elClass = 'jp-carousel-comment-post-' + ( isSuccess ? 'success' : 'error' );
results.innerHTML = '<span class="' + elClass + '">' + msg + '</span>';
domUtil.hide( carousel.overlay.querySelector( '#jp-carousel-comment-form-spinner' ) );
carousel.overlay
.querySelector( '#jp-carousel-comment-form' )
.classList.remove( 'jp-carousel-is-disabled' );
domUtil.show( results );
}
function handleCommentFormClick( e ) {
var target = e.target;
var data = domUtil.getJSONAttribute( carousel.container, 'data-carousel-extra' ) || {};
var attachmentId = carousel.currentSlide.attrs.attachmentId;
var wrapper = document.querySelector( '#jp-carousel-comment-form-submit-and-info-wrapper' );
var spinner = document.querySelector( '#jp-carousel-comment-form-spinner' );
var submit = document.querySelector( '#jp-carousel-comment-form-button-submit' );
var form = document.querySelector( '#jp-carousel-comment-form' );
if (
carousel.commentField &&
carousel.commentField.getAttribute( 'id' ) === target.getAttribute( 'id' )
) {
// For first page load
disableKeyboardNavigation();
domUtil.show( wrapper );
} else if ( domUtil.matches( target, 'input[type="submit"]' ) ) {
e.preventDefault();
e.stopPropagation();
domUtil.show( spinner );
form.classList.add( 'jp-carousel-is-disabled' );
var ajaxData = {
action: 'post_attachment_comment',
nonce: jetpackCarouselStrings.nonce,
blog_id: data.blog_id,
id: attachmentId,
comment: carousel.commentField.value,
};
if ( ! ajaxData.comment.length ) {
updatePostResults( jetpackCarouselStrings.no_comment_text, false );
return;
}
if ( Number( jetpackCarouselStrings.is_logged_in ) !== 1 ) {
ajaxData.email = carousel.emailField.value;
ajaxData.author = carousel.authorField.value;
ajaxData.url = carousel.urlField.value;
if ( Number( jetpackCarouselStrings.require_name_email ) === 1 ) {
if ( ! ajaxData.email.length || ! ajaxData.email.match( '@' ) ) {
updatePostResults( jetpackCarouselStrings.no_comment_email, false );
return;
} else if ( ! ajaxData.author.length ) {
updatePostResults( jetpackCarouselStrings.no_comment_author, false );
return;
}
}
}
var xhr = new XMLHttpRequest();
xhr.open( 'POST', jetpackCarouselStrings.ajaxurl, true );
xhr.setRequestHeader( 'X-Requested-With', 'XMLHttpRequest' );
xhr.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8' );
xhr.onreadystatechange = function () {
if (
this.readyState === XMLHttpRequest.DONE &&
this.status >= 200 &&
this.status < 300
) {
var response;
try {
response = JSON.parse( this.response );
} catch ( error ) {
updatePostResults( jetpackCarouselStrings.comment_post_error, false );
return;
}
if ( response.comment_status === 'approved' ) {
updatePostResults( jetpackCarouselStrings.comment_approved, true );
} else if ( response.comment_status === 'unapproved' ) {
updatePostResults( jetpackCarouselStrings.comment_unapproved, true );
} else {
// 'deleted', 'spam', false
updatePostResults( jetpackCarouselStrings.comment_post_error, false );
}
clearCommentTextAreaValue();
fetchComments( attachmentId );
submit.value = jetpackCarouselStrings.post_comment;
domUtil.hide( spinner );
form.classList.remove( 'jp-carousel-is-disabled' );
} else {
// TODO: Add error handling and display here
updatePostResults( jetpackCarouselStrings.comment_post_error, false );
}
};
var params = [];
for ( var item in ajaxData ) {
if ( item ) {
// Encode each form element into a URI-compatible string.
var encoded = encodeURIComponent( item ) + '=' + encodeURIComponent( ajaxData[ item ] );
// In x-www-form-urlencoded, spaces should be `+`, not `%20`.
params.push( encoded.replace( /%20/g, '+' ) );
}
}
var encodedData = params.join( '&' );
xhr.send( encodedData );
}
}
/**
* Handles clicks to icons and other action elements in the icon container.
* @param {MouseEvent|TouchEvent|KeyBoardEvent} Event object.
*/
function handleFooterElementClick( e ) {
e.preventDefault();
var target = e.target;
var extraInfoContainer = carousel.info.querySelector( '.jp-carousel-info-extra' );
var photoMetaContainer = carousel.info.querySelector( '.jp-carousel-image-meta' );
var commentsContainer = carousel.info.querySelector( '.jp-carousel-comments-wrapper' );
var infoIcon = carousel.info.querySelector( '.jp-carousel-icon-info' );
var commentsIcon = carousel.info.querySelector( '.jp-carousel-icon-comments' );
function handleInfoToggle() {
if ( commentsIcon ) {
commentsIcon.classList.remove( 'jp-carousel-selected' );
}
infoIcon.classList.toggle( 'jp-carousel-selected' );
if ( commentsContainer ) {
commentsContainer.classList.remove( 'jp-carousel-show' );
}
if ( photoMetaContainer ) {
photoMetaContainer.classList.toggle( 'jp-carousel-show' );
if ( photoMetaContainer.classList.contains( 'jp-carousel-show' ) ) {
extraInfoContainer.classList.add( 'jp-carousel-show' );
} else {
extraInfoContainer.classList.remove( 'jp-carousel-show' );
}
}
}
function handleCommentToggle() {
if ( infoIcon ) {
infoIcon.classList.remove( 'jp-carousel-selected' );
}
commentsIcon.classList.toggle( 'jp-carousel-selected' );
if ( photoMetaContainer ) {
photoMetaContainer.classList.remove( 'jp-carousel-show' );
}
if ( commentsContainer ) {
commentsContainer.classList.toggle( 'jp-carousel-show' );
if ( commentsContainer.classList.contains( 'jp-carousel-show' ) ) {
extraInfoContainer.classList.add( 'jp-carousel-show' );
} else {
extraInfoContainer.classList.remove( 'jp-carousel-show' );
}
}
}
if (
domUtil.closest( target, '.jp-carousel-icon-info' ) ||
target.classList.contains( 'jp-carousel-photo-title' )
) {
if ( photoMetaContainer && photoMetaContainer.classList.contains( 'jp-carousel-show' ) ) {
domUtil.scrollToElement( carousel.overlay, carousel.overlay, handleInfoToggle );
} else {
handleInfoToggle();
domUtil.scrollToElement( carousel.info, carousel.overlay );
}
}
if ( domUtil.closest( target, '.jp-carousel-icon-comments' ) ) {
if ( commentsContainer && commentsContainer.classList.contains( 'jp-carousel-show' ) ) {
domUtil.scrollToElement( carousel.overlay, carousel.overlay, handleCommentToggle );
} else {
handleCommentToggle();
domUtil.scrollToElement( carousel.info, carousel.overlay );
}
}
}
function processSingleImageGallery() {
var images = document.querySelectorAll( 'a img[data-attachment-id]' );
Array.prototype.forEach.call( images, function ( image ) {
var link = image.parentElement;
var container = link.parentElement;
// Skip if image was already added to gallery by shortcode.
if ( container.classList.contains( 'gallery-icon' ) ) {
return;
}
// Skip if image is part of a gallery.
if ( domUtil.closest( container, galleryItemSelector ) ) {
return;
}
// Skip if the parent is not actually a link.
if ( ! link.hasAttribute( 'href' ) ) {
return;
}
var valid = false;
// If link points to 'Media File' (ignoring GET parameters) and flag is set, allow it.
if (
link.getAttribute( 'href' ).split( '?' )[ 0 ] ===
image.getAttribute( 'data-orig-file' ).split( '?' )[ 0 ] &&
Number( jetpackCarouselStrings.single_image_gallery_media_file ) === 1
) {
valid = true;
}
// If link points to 'Attachment Page', allow it.
if ( link.getAttribute( 'href' ) === image.getAttribute( 'data-permalink' ) ) {
valid = true;
}
// Links to 'Custom URL' or 'Media File' when flag is not set are not valid.
if ( ! valid ) {
return;
}
// Make this node a gallery recognizable by event listener above.
link.classList.add( 'single-image-gallery' );
// blog_id is needed to allow posting comments to correct blog.
link.setAttribute(
'data-carousel-extra',
JSON.stringify( {
blog_id: Number( jetpackCarouselStrings.blog_id ),
} )
);
} );
}
function testForData( el ) {
return !! ( el && el.getAttribute( 'data-carousel-extra' ) );
}
function openOrSelectSlide( gal, index ) {
if ( ! carousel.isOpen ) {
// The `open` method selects the correct slide during the initialization.
loadSwiper( gal, { startIndex: index } );
} else {
selectSlideAtIndex( index );
// We have to force swiper to slide to the index onHasChange.
swiper.slideTo( index + 1 );
}
}
function selectSlideAtIndex( index ) {
if ( ! index || index < 0 || index > carousel.slides.length ) {
index = 0;
}
carousel.currentSlide = carousel.slides[ index ];
var current = carousel.currentSlide;
var attachmentId = current.attrs.attachmentId;
var infoIcon = carousel.info.querySelector( '.jp-carousel-icon-info' );
var commentsIcon = carousel.info.querySelector( '.jp-carousel-icon-comments' );
// If the comment/info section is toggled open, it's kept open, but scroll to top of the next slide.
if (
( infoIcon && infoIcon.classList.contains( 'jp-carousel-selected' ) ) ||
( commentsIcon && commentsIcon.classList.contains( 'jp-carousel-selected' ) )
) {
if ( carousel.overlay.scrollTop !== 0 ) {
domUtil.scrollToElement( carousel.overlay, carousel.overlay );
}
}
loadFullImage( carousel.slides[ index ] );
if (
Number( jetpackCarouselStrings.display_background_image ) === 1 &&
! carousel.slides[ index ].backgroundImage
) {
loadBackgroundImage( carousel.slides[ index ] );
}
domUtil.hide( carousel.caption );
updateTitleCaptionAndDesc( {
caption: current.attrs.caption,
title: current.attrs.title,
desc: current.attrs.desc,
} );
var imageMeta = carousel.slides[ index ].attrs.imageMeta;
updateExif( imageMeta );
updateFullSizeLink( current );
if ( Number( jetpackCarouselStrings.display_comments ) === 1 ) {
testCommentsOpened( carousel.slides[ index ].attrs.commentsOpened );
fetchComments( attachmentId );
domUtil.hide( carousel.info.querySelector( '#jp-carousel-comment-post-results' ) );
}
// Update pagination in footer.
var pagination = carousel.info.querySelector( '.jp-carousel-pagination' );
if ( pagination && carousel.slides.length > 5 ) {
var currentPage = index + 1;
pagination.innerHTML = '<span>' + currentPage + ' / ' + carousel.slides.length + '</span>';
}
// Record pageview in WP Stats, for each new image loaded full-screen.
if ( jetpackCarouselStrings.stats ) {
new Image().src =
document.location.protocol +
'//pixel.wp.com/g.gif?' +
jetpackCarouselStrings.stats +
'&post=' +
encodeURIComponent( attachmentId ) +
'&rand=' +
Math.random();
}
pageview( attachmentId );
window.location.hash = lastKnownLocationHash = '#jp-carousel-' + attachmentId;
}
function restoreScroll() {
window.scrollTo( window.scrollX || window.pageXOffset || 0, scrollPos || 0 );
}
function closeCarousel() {
// Make sure to let the page scroll again.
document.body.style.overflow = originalOverflow;
document.documentElement.style.overflow = originalHOverflow;
clearCommentTextAreaValue();
disableKeyboardNavigation();
domUtil.emitEvent( carousel.overlay, 'jp_carousel.beforeClose' );
restoreScroll();
swiper.destroy();
carousel.isOpen = false;
// Clear slide data for DOM garbage collection.
carousel.slides = [];
carousel.currentSlide = undefined;
carousel.gallery.innerHTML = '';
domUtil.fadeOut( carousel.overlay, function () {
domUtil.emitEvent( carousel.overlay, 'jp_carousel.afterClose' );
} );
}
function calculateMaxSlideDimensions() {
return {
width: window.innerWidth,
height: window.innerHeight - 64, //subtract height of bottom info bar,
};
}
function selectBestImageUrl( args ) {
if ( typeof args !== 'object' ) {
args = {};
}
if ( typeof args.origFile === 'undefined' ) {
return '';
}
if ( typeof args.origWidth === 'undefined' || typeof args.maxWidth === 'undefined' ) {
return args.origFile;
}
if ( typeof args.mediumFile === 'undefined' || typeof args.largeFile === 'undefined' ) {
return args.origFile;
}
// Check if the image is being served by Photon (using a regular expression on the hostname).
var imageLinkParser = document.createElement( 'a' );
imageLinkParser.href = args.largeFile;
var isPhotonUrl = /^i[0-2]\.wp\.com$/i.test( imageLinkParser.hostname );
var mediumSizeParts = getImageSizeParts( args.mediumFile, args.origWidth, isPhotonUrl );
var largeSizeParts = getImageSizeParts( args.largeFile, args.origWidth, isPhotonUrl );
var largeWidth = parseInt( largeSizeParts[ 0 ], 10 );
var largeHeight = parseInt( largeSizeParts[ 1 ], 10 );
var mediumWidth = parseInt( mediumSizeParts[ 0 ], 10 );
var mediumHeight = parseInt( mediumSizeParts[ 1 ], 10 );
args.origMaxWidth = args.maxWidth;
args.origMaxHeight = args.maxHeight;
// Give devices with a higher devicePixelRatio higher-res images (Retina display = 2, Android phones = 1.5, etc)
if ( typeof window.devicePixelRatio !== 'undefined' && window.devicePixelRatio > 1 ) {
args.maxWidth = args.maxWidth * window.devicePixelRatio;
args.maxHeight = args.maxHeight * window.devicePixelRatio;
}
if ( largeWidth >= args.maxWidth || largeHeight >= args.maxHeight ) {
return args.largeFile;
}
if ( mediumWidth >= args.maxWidth || mediumHeight >= args.maxHeight ) {
return args.mediumFile;
}
if ( isPhotonUrl ) {
// args.origFile doesn't point to a Photon url, so in this case we use args.largeFile
// to return the photon url of the original image.
var largeFileIndex = args.largeFile.lastIndexOf( '?' );
var origPhotonUrl = args.largeFile;
if ( largeFileIndex !== -1 ) {
origPhotonUrl = args.largeFile.substring( 0, largeFileIndex );
// If we have a really large image load a smaller version
// that is closer to the viewable size
if ( args.origWidth > args.maxWidth || args.origHeight > args.maxHeight ) {
// @2x the max sizes so we get a high enough resolution for zooming.
args.origMaxWidth = args.maxWidth * 2;
args.origMaxHeight = args.maxHeight * 2;
origPhotonUrl += '?fit=' + args.origMaxWidth + '%2C' + args.origMaxHeight;
}
}
return origPhotonUrl;
}
return args.origFile;
}
function getImageSizeParts( file, origWidth, isPhotonUrl ) {
var size = isPhotonUrl
? file.replace( /.*=([\d]+%2C[\d]+).*$/, '$1' )
: file.replace( /.*-([\d]+x[\d]+)\..+$/, '$1' );
var sizeParts =
size !== file
? isPhotonUrl
? size.split( '%2C' )
: size.split( 'x' )
: [ origWidth, 0 ];
// If one of the dimensions is set to 9999, then the actual value of that dimension can't be retrieved from the url.
// In that case, we set the value to 0.
if ( sizeParts[ 0 ] === '9999' ) {
sizeParts[ 0 ] = '0';
}
if ( sizeParts[ 1 ] === '9999' ) {
sizeParts[ 1 ] = '0';
}
return sizeParts;
}
/**
* Returns a number in a fraction format that represents the shutter speed.
* @param Number speed
* @return String
*/
function formatShutterSpeed( speed ) {
var denominator;
// round to one decimal if value > 1s by multiplying it by 10, rounding, then dividing by 10 again
if ( speed >= 1 ) {
return Math.round( speed * 10 ) / 10 + 's';
}
// If the speed is less than one, we find the denominator by inverting
// the number. Since cameras usually use rational numbers as shutter
// speeds, we should get a nice round number. Or close to one in cases
// like 1/30. So we round it.
denominator = Math.round( 1 / speed );
return '1/' + denominator + 's';
}
function parseTitleOrDesc( value ) {
if ( ! value.match( ' ' ) && value.match( '_' ) ) {
return '';
}
return value;
}
function updateTitleCaptionAndDesc( data ) {
var caption = '';
var title = '';
var desc = '';
var captionMainElement;
var captionInfoExtraElement;
var titleElement;
var descriptionElement;
captionMainElement = carousel.overlay.querySelector( '.jp-carousel-photo-caption' );
captionInfoExtraElement = carousel.overlay.querySelector( '.jp-carousel-caption' );
titleElement = carousel.overlay.querySelector( '.jp-carousel-photo-title' );
descriptionElement = carousel.overlay.querySelector( '.jp-carousel-photo-description' );
domUtil.hide( captionMainElement );
domUtil.hide( captionInfoExtraElement );
domUtil.hide( titleElement );
domUtil.hide( descriptionElement );
caption = parseTitleOrDesc( data.caption ) || '';
title = parseTitleOrDesc( data.title ) || '';
desc = parseTitleOrDesc( data.desc ) || '';
if ( caption || title || desc ) {
if ( caption ) {
captionMainElement.innerHTML = caption;
captionInfoExtraElement.innerHTML = caption;
domUtil.show( captionMainElement );
domUtil.show( captionInfoExtraElement );
}
if ( domUtil.stripHTML( caption ) === domUtil.stripHTML( title ) ) {
title = '';
}
if ( domUtil.stripHTML( caption ) === domUtil.stripHTML( desc ) ) {
desc = '';
}
if ( domUtil.stripHTML( title ) === domUtil.stripHTML( desc ) ) {
desc = '';
}
if ( desc ) {
descriptionElement.innerHTML = desc;
domUtil.show( descriptionElement );
if ( ! title && ! caption ) {
captionMainElement.innerHTML = domUtil.stripHTML( desc );
domUtil.show( captionMainElement );
}
}
if ( title ) {
var plainTitle = domUtil.stripHTML( title );
titleElement.innerHTML = plainTitle;
if ( ! caption ) {
captionMainElement.innerHTML = plainTitle;
captionInfoExtraElement.innerHTML = plainTitle;
domUtil.show( captionMainElement );
}
domUtil.show( titleElement );
}
}
}
// updateExif updates the contents of the exif UL (.jp-carousel-image-exif)
function updateExif( meta ) {
if ( ! meta || Number( jetpackCarouselStrings.display_exif ) !== 1 ) {
return false;
}
var ul = carousel.info.querySelector( '.jp-carousel-image-meta ul.jp-carousel-image-exif' );
var html = '';
for ( var key in meta ) {
var val = meta[ key ];
var metaKeys = jetpackCarouselStrings.meta_data || [];
if ( parseFloat( val ) === 0 || ! val.length || metaKeys.indexOf( key ) === -1 ) {
continue;
}
switch ( key ) {
case 'focal_length':
val = val + 'mm';
break;
case 'shutter_speed':
val = formatShutterSpeed( val );
break;
case 'aperture':
val = 'f/' + val;
break;
}
html += '<li><h5>' + jetpackCarouselStrings[ key ] + '</h5>' + val + '</li>';
}
ul.innerHTML = html;
ul.style.removeProperty( 'display' );
}
// Update the contents of the jp-carousel-image-download link
function updateFullSizeLink( currentSlide ) {
if ( ! currentSlide ) {
return false;
}
var original;
var origSize = [ currentSlide.attrs.origWidth, currentSlide.attrs.origHeight ];
var imageLinkParser = document.createElement( 'a' );
imageLinkParser.href = currentSlide.attrs.src.replace( /\?.+$/, '' );
// Is this a Photon URL?
if ( imageLinkParser.hostname.match( /^i[\d]{1}\.wp\.com$/i ) !== null ) {
original = imageLinkParser.href;
} else {
original = currentSlide.attrs.origFile.replace( /\?.+$/, '' );
}
var downloadText = carousel.info.querySelector( '.jp-carousel-download-text' );
var permalink = carousel.info.querySelector( '.jp-carousel-image-download' );
downloadText.innerHTML = util.applyReplacements(
jetpackCarouselStrings.download_original,
origSize
);
permalink.setAttribute( 'href', original );
permalink.style.removeProperty( 'display' );
}
function testCommentsOpened( opened ) {
var commentForm = carousel.container.querySelector( '.jp-carousel-comment-form-container' );
var isOpened = parseInt( opened, 10 ) === 1;
if ( isOpened ) {
domUtil.fadeIn( commentForm );
} else {
domUtil.fadeOut( commentForm );
}
}
function fetchComments( attachmentId, offset ) {
var shouldClear = offset === undefined;
var commentsIndicator = carousel.info.querySelector(
'.jp-carousel-icon-comments .jp-carousel-has-comments-indicator'
);
commentsIndicator.classList.remove( 'jp-carousel-show' );
clearInterval( commentInterval );
if ( ! attachmentId ) {
return;
}
if ( ! offset || offset < 1 ) {
offset = 0;
}
var comments = carousel.info.querySelector( '.jp-carousel-comments' );
var commentsLoading = carousel.info.querySelector( '#jp-carousel-comments-loading' );
domUtil.show( commentsLoading );
if ( shouldClear ) {
domUtil.hide( comments );
comments.innerHTML = '';
}
var xhr = new XMLHttpRequest();
var url =
jetpackCarouselStrings.ajaxurl +
'?action=get_attachment_comments' +
'&nonce=' +
jetpackCarouselStrings.nonce +
'&id=' +
attachmentId +
'&offset=' +
offset;
xhr.open( 'GET', url );
xhr.setRequestHeader( 'X-Requested-With', 'XMLHttpRequest' );
var onError = function () {
domUtil.fadeIn( comments );
domUtil.fadeOut( commentsLoading );
};
xhr.onload = function () {
// Ignore the results if they arrive late and we're now on a different slide.
if (
! carousel.currentSlide ||
carousel.currentSlide.attrs.attachmentId !== attachmentId
) {
return;
}
var isSuccess = xhr.status >= 200 && xhr.status < 300;
var data;
try {
data = JSON.parse( xhr.responseText );
} catch ( e ) {
// Do nothing.
}
if ( ! isSuccess || ! data || ! Array.isArray( data ) ) {
return onError();
}
if ( shouldClear ) {
comments.innerHTML = '';
}
for ( var i = 0; i < data.length; i++ ) {
var entry = data[ i ];
var comment = document.createElement( 'div' );
comment.classList.add( 'jp-carousel-comment' );
comment.setAttribute( 'id', 'jp-carousel-comment-' + entry.id );
comment.innerHTML =
'<div class="comment-gravatar">' +
entry.gravatar_markup +
'</div>' +
'<div class="comment-content">' +
'<div class="comment-author">' +
entry.author_markup +
'</div>' +
'<div class="comment-date">' +
entry.date_gmt +
'</div>' +
entry.content +
'</div>';
comments.appendChild( comment );
// Set the interval to check for a new page of comments.
clearInterval( commentInterval );
commentInterval = setInterval( function () {
if ( carousel.container.scrollTop + 150 > window.innerHeight ) {
fetchComments( attachmentId, offset + 10 );
clearInterval( commentInterval );
}
}, 300 );
}
if ( data.length > 0 ) {
domUtil.show( comments );
commentsIndicator.innerText = data.length;
commentsIndicator.classList.add( 'jp-carousel-show' );
}
domUtil.hide( commentsLoading );
};
xhr.onerror = onError;
xhr.send();
}
function loadFullImage( slide ) {
var el = slide.el;
var attrs = slide.attrs;
var image = el.querySelector( 'img' );
if ( ! image.hasAttribute( 'data-loaded' ) ) {
var hasPreview = !! attrs.previewImage;
var thumbSize = attrs.thumbSize;
if ( ! hasPreview || ( thumbSize && el.offsetWidth > thumbSize.width ) ) {
image.src = attrs.src;
} else {
image.src = attrs.previewImage;
}
image.setAttribute( 'itemprop', 'image' );
image.setAttribute( 'data-loaded', 1 );
}
}
function loadBackgroundImage( slide ) {
var currentSlide = slide.el;
if ( swiper && swiper.slides ) {
currentSlide = swiper.slides[ swiper.activeIndex ];
}
var image = slide.attrs.originalElement;
var isLoaded = image.complete && image.naturalHeight !== 0;
if ( isLoaded ) {
applyBackgroundImage( slide, currentSlide, image );
return;
}
image.onload = function () {
applyBackgroundImage( slide, currentSlide, image );
};
}
function applyBackgroundImage( slide, currentSlide, image ) {
var url = util.getBackgroundImage( image );
slide.backgroundImage = url;
currentSlide.style.backgroundImage = 'url(' + url + ')';
currentSlide.style.backgroundSize = 'cover';
}
function clearCommentTextAreaValue() {
if ( carousel.commentField ) {
carousel.commentField.value = '';
}
}
function getOriginalDimensions( el ) {
var size = el.getAttribute( 'data-orig-size' ) || '';
if ( size ) {
var parts = size.split( ',' );
return { width: parseInt( parts[ 0 ], 10 ), height: parseInt( parts[ 1 ], 10 ) };
} else {
return {
width:
el.getAttribute( 'data-original-width' ) || el.getAttribute( 'width' ) || undefined,
height:
el.getAttribute( 'data-original-height' ) || el.getAttribute( 'height' ) || undefined,
};
}
}
function initCarouselSlides( items, startIndex ) {
carousel.slides = [];
var max = calculateMaxSlideDimensions();
// If the startIndex is not 0 then preload the clicked image first.
if ( startIndex !== 0 ) {
var img = new Image();
img.src = items[ startIndex ].getAttribute( 'data-gallery-src' );
}
var useInPageThumbnails = !! domUtil.closest( items[ 0 ], '.tiled-gallery.type-rectangular' );
// create the 'slide'
Array.prototype.forEach.call( items, function ( item, i ) {
var permalinkEl = domUtil.closest( item, 'a' );
var origFile = item.getAttribute( 'data-orig-file' ) || item.getAttribute( 'src-orig' );
var attrID =
item.getAttribute( 'data-attachment-id' ) || item.getAttribute( 'data-id' ) || '0';
var caption = document.querySelector(
'img[data-attachment-id="' + attrID + '"] + figcaption'
);
if ( caption ) {
caption = caption.innerHTML;
} else {
caption = item.getAttribute( 'data-image-caption' );
}
var attrs = {
originalElement: item,
attachmentId: attrID,
commentsOpened: item.getAttribute( 'data-comments-opened' ) || '0',
imageMeta: domUtil.getJSONAttribute( item, 'data-image-meta' ) || {},
title: item.getAttribute( 'data-image-title' ) || '',
desc: item.getAttribute( 'data-image-description' ) || '',
mediumFile: item.getAttribute( 'data-medium-file' ) || '',
largeFile: item.getAttribute( 'data-large-file' ) || '',
origFile: origFile || '',
thumbSize: { width: item.naturalWidth, height: item.naturalHeight },
caption: caption || '',
permalink: permalinkEl && permalinkEl.getAttribute( 'href' ),
src: origFile || item.getAttribute( 'src' ) || '',
};
var tiledGalleryItem = domUtil.closest( item, '.tiled-gallery-item' );
var tiledCaptionEl =
tiledGalleryItem && tiledGalleryItem.querySelector( '.tiled-gallery-caption' );
var tiledCaption = tiledCaptionEl && tiledCaptionEl.innerHTML;
if ( tiledCaption ) {
attrs.caption = tiledCaption;
}
var origDimensions = getOriginalDimensions( item );
attrs.origWidth = origDimensions.width || attrs.thumbSize.width;
attrs.origHeight = origDimensions.height || attrs.thumbSize.height;
if ( typeof wpcom !== 'undefined' && wpcom.carousel && wpcom.carousel.generateImgSrc ) {
attrs.src = wpcom.carousel.generateImgSrc( item, max );
} else {
attrs.src = selectBestImageUrl( {
origFile: attrs.src,
origWidth: attrs.origWidth,
origHeight: attrs.origHeight,
maxWidth: max.width,
maxHeight: max.height,
mediumFile: attrs.mediumFile,
largeFile: attrs.largeFile,
} );
}
// Set the final src.
item.setAttribute( 'data-gallery-src', attrs.src );
if ( attrs.attachmentId !== '0' ) {
attrs.title = util.texturize( attrs.title );
attrs.desc = util.texturize( attrs.desc );
attrs.caption = util.texturize( attrs.caption );
// Initially, the image is a 1x1 transparent gif.
// The preview is shown as a background image on the slide itself.
var image = new Image();
image.src = attrs.src;
var slideEl = document.createElement( 'div' );
slideEl.classList.add( 'swiper-slide' );
slideEl.setAttribute( 'itemprop', 'associatedMedia' );
slideEl.setAttribute( 'itemscope', '' );
slideEl.setAttribute( 'itemtype', 'https://schema.org/ImageObject' );
var zoomEl = document.createElement( 'div' );
zoomEl.classList.add( 'swiper-zoom-container' );
carousel.gallery.appendChild( slideEl );
slideEl.appendChild( zoomEl );
zoomEl.appendChild( image );
slideEl.setAttribute( 'data-attachment-id', attrs.attachmentId );
slideEl.setAttribute( 'data-permalink', attrs.permalink );
slideEl.setAttribute( 'data-orig-file', attrs.origFile );
if ( useInPageThumbnails ) {
// Use the image already loaded in the gallery as a preview.
attrs.previewImage = attrs.src;
}
var slide = { el: slideEl, attrs: attrs, index: i };
carousel.slides.push( slide );
}
} );
}
function loadSwiper( gallery, options ) {
if ( ! window.Swiper670 ) {
var loader = document.querySelector( '#jp-carousel-loading-overlay' );
domUtil.show( loader );
var jsScript = document.createElement( 'script' );
jsScript.id = 'jetpack-carousel-swiper-js';
jsScript.src = window.jetpackSwiperLibraryPath.url;
jsScript.async = true;
jsScript.onload = function () {
domUtil.hide( loader );
openCarousel( gallery, options );
};
jsScript.onerror = function () {
domUtil.hide( loader );
};
document.head.appendChild( jsScript );
return;
}
openCarousel( gallery, options );
}
function openCarousel( gallery, options ) {
var settings = {
imgSelector:
'.gallery-item [data-attachment-id], .tiled-gallery-item [data-attachment-id], img[data-attachment-id], img[data-id]',
startIndex: 0,
};
var data = domUtil.getJSONAttribute( gallery, 'data-carousel-extra' );
var tapTimeout;
if ( ! data ) {
return; // don't run if the default gallery functions weren't used
}
initializeCarousel();
if ( carousel.isOpen ) {
return; // don't open if already opened
}
carousel.isOpen = true;
// make sure to stop the page from scrolling behind the carousel overlay, so we don't trigger
// infiniscroll for it when enabled (Reader, theme infiniscroll, etc).
originalOverflow = getComputedStyle( document.body ).overflow;
document.body.style.overflow = 'hidden';
// prevent html from overflowing on some of the new themes.
originalHOverflow = getComputedStyle( document.documentElement ).overflow;
document.documentElement.style.overflow = 'hidden';
scrollPos = window.scrollY || window.pageYOffset || 0;
carousel.container.setAttribute( 'data-carousel-extra', JSON.stringify( data ) );
stat( [ 'open', 'view_image' ] );
// If options exist, lets merge them
// with our default settings
for ( var option in options || {} ) {
settings[ option ] = options[ option ];
}
if ( settings.startIndex === -1 ) {
settings.startIndex = 0; // -1 returned if can't find index, so start from beginning
}
domUtil.emitEvent( carousel.overlay, 'jp_carousel.beforeOpen' );
carousel.gallery.innerHTML = '';
// Need to set the overlay manually to block or swiper does't initialise properly.
carousel.overlay.style.opacity = 1;
carousel.overlay.style.display = 'block';
initCarouselSlides( gallery.querySelectorAll( settings.imgSelector ), settings.startIndex );
swiper = new window.Swiper670( '.jp-carousel-swiper-container', {
centeredSlides: true,
zoom: true,
loop: carousel.slides.length > 1,
// Turn off interactions and hide navigation arrows if there is only one slide.
enabled: carousel.slides.length > 1,
pagination: {
el: '.jp-swiper-pagination',
clickable: true,
},
navigation: {
nextEl: '.jp-swiper-button-next',
prevEl: '.jp-swiper-button-prev',
},
initialSlide: settings.startIndex,
on: {
init: function () {
selectSlideAtIndex( settings.startIndex );
},
},
preventClicks: false,
preventClicksPropagation: false,
preventInteractionOnTransition: ! domUtil.isTouch(),
threshold: 5,
} );
swiper.on( 'slideChange', function ( swiper ) {
var index;
// Swiper indexes slides from 1, plus when looping to left last slide ends up
// as 0 and looping to right first slide as total slides + 1. These are adjusted
// here to match index of carousel.slides.
if ( swiper.activeIndex === 0 ) {
index = carousel.slides.length - 1;
} else if ( swiper.activeIndex === carousel.slides.length + 1 ) {
index = 0;
} else {
index = swiper.activeIndex - 1;
}
selectSlideAtIndex( index );
carousel.overlay.classList.remove( 'jp-carousel-hide-controls' );
} );
swiper.on( 'zoomChange', function ( swiper, scale ) {
if ( scale > 1 ) {
carousel.overlay.classList.add( 'jp-carousel-hide-controls' );
}
if ( scale === 1 ) {
carousel.overlay.classList.remove( 'jp-carousel-hide-controls' );
}
} );
swiper.on( 'doubleTap', function ( swiper ) {
clearTimeout( tapTimeout );
if ( swiper.zoom.scale === 1 ) {
var zoomTimeout = setTimeout( function () {
carousel.overlay.classList.remove( 'jp-carousel-hide-controls' );
clearTimeout( zoomTimeout );
}, 150 );
}
} );
swiper.on( 'tap', function () {
if ( swiper.zoom.scale > 1 ) {
tapTimeout = setTimeout( function () {
carousel.overlay.classList.toggle( 'jp-carousel-hide-controls' );
}, 150 );
}
} );
domUtil.fadeIn( carousel.overlay, function () {
domUtil.emitEvent( carousel.overlay, 'jp_carousel.afterOpen' );
} );
}
// Register the event listener for starting the gallery
document.body.addEventListener( 'click', function ( e ) {
var isCompatible =
window.CSS && window.CSS.supports && window.CSS.supports( 'display', 'grid' );
// IE11 support is being dropped in August 2021. The new swiper.js libray is not IE11 compat
// so just default to opening individual image attachment/media pages for IE.
if ( ! isCompatible ) {
return;
}
var target = e.target;
var gallery = domUtil.closest( target, gallerySelector );
if ( gallery ) {
if ( ! testForData( gallery ) ) {
return;
}
var parent = target.parentElement;
var grandparent = parent.parentElement;
// If Gallery is made up of individual Image blocks check for custom link before
// loading carousel. The custom link may be the parent or could be a descendant
// of the parent if the image has rounded corners.
var parentHref = null;
if ( grandparent && grandparent.classList.contains( 'wp-block-image' ) ) {
parentHref = parent.getAttribute( 'href' );
} else if (
parent &&
parent.classList.contains( 'wp-block-image' ) &&
parent.querySelector( ':scope > a' )
) {
parentHref = parent.querySelector( ':scope > a' ).getAttribute( 'href' );
}
// If the link does not point to the attachment or media file then assume Image has
// a custom link so don't load the carousel.
if (
parentHref &&
parentHref.split( '?' )[ 0 ] !==
target.getAttribute( 'data-orig-file' ).split( '?' )[ 0 ] &&
parentHref !== target.getAttribute( 'data-permalink' )
) {
return;
}
// Do not open the modal if we are looking at a gallery caption from before WP5, which may contain a link.
if ( parent.classList.contains( 'gallery-caption' ) ) {
return;
}
// Do not open the modal if we are looking at a caption of a gallery block, which may contain a link.
if ( domUtil.matches( parent, 'figcaption' ) ) {
return;
}
// Set height to auto.
// Fix some themes where closing carousel brings view back to top.
document.documentElement.style.height = 'auto';
e.preventDefault();
// Stopping propagation in case there are parent elements
// with .gallery or .tiled-gallery class
e.stopPropagation();
var item = domUtil.closest( target, itemSelector );
var index = Array.prototype.indexOf.call( gallery.querySelectorAll( itemSelector ), item );
loadSwiper( gallery, { startIndex: index } );
}
} );
// Handle lightbox (single image gallery) for images linking to 'Attachment Page'.
if ( Number( jetpackCarouselStrings.single_image_gallery ) === 1 ) {
processSingleImageGallery();
document.body.addEventListener( 'is.post-load', function () {
processSingleImageGallery();
} );
}
// Makes carousel work on page load and when back button leads to same URL with carousel hash
// (i.e. no actual document.ready trigger).
window.addEventListener( 'hashchange', function () {
var hashRegExp = /jp-carousel-(\d+)/;
if ( ! window.location.hash || ! hashRegExp.test( window.location.hash ) ) {
if ( carousel.isOpen ) {
closeCarousel();
}
return;
}
if ( window.location.hash === lastKnownLocationHash && carousel.isOpen ) {
return;
}
if ( window.location.hash && carousel.gallery && ! carousel.isOpen && history.back ) {
history.back();
return;
}
lastKnownLocationHash = window.location.hash;
var matchList = window.location.hash.match( hashRegExp );
var attachmentId = parseInt( matchList[ 1 ], 10 );
var galleries = document.querySelectorAll( gallerySelector );
// Find the first thumbnail that matches the attachment ID in the location
// hash, then open the gallery that contains it.
for ( var i = 0; i < galleries.length; i++ ) {
var gallery = galleries[ i ];
var selected;
var images = gallery.querySelectorAll( 'img' );
for ( var j = 0; j < images.length; j++ ) {
if (
parseInt( images[ j ].getAttribute( 'data-attachment-id' ), 10 ) === attachmentId ||
parseInt( images[ j ].getAttribute( 'data-id' ), 10 ) === attachmentId
) {
selected = j;
break;
}
}
if ( selected !== undefined ) {
openOrSelectSlide( gallery, selected );
break;
}
}
} );
if ( window.location.hash ) {
domUtil.emitEvent( window, 'hashchange' );
}
}
if ( document.readyState !== 'loading' ) {
init();
} else {
document.addEventListener( 'DOMContentLoaded', init );
}
} )();