| 1 |
/* global wpcom, jetpackCarouselStrings, DocumentTouch */ |
| 2 |
/* eslint-disable no-shadow */ |
| 3 |
|
| 4 |
( function () { |
| 5 |
'use strict'; |
| 6 |
var swiper; |
| 7 |
///////////////////////////////////// |
| 8 |
// Utility functions |
| 9 |
///////////////////////////////////// |
| 10 |
var util = ( function () { |
| 11 |
var noop = function () {}; |
| 12 |
|
| 13 |
function texturize( text ) { |
| 14 |
// Ensure we get a string. |
| 15 |
text = text + ''; |
| 16 |
text = text.replace( /'/g, '’' ).replace( /'/g, '’' ); |
| 17 |
text = text |
| 18 |
.replace( /"/g, '”' ) |
| 19 |
.replace( /"/g, '”' ) |
| 20 |
.replace( /"/g, '”' ) |
| 21 |
.replace( /[\u201D]/g, '”' ); |
| 22 |
// Untexturize allowed HTML tags params double-quotes. |
| 23 |
text = text.replace( /([\w]+)=&#[\d]+;(.+?)&#[\d]+;/g, '$1="$2"' ); |
| 24 |
return text.trim(); |
| 25 |
} |
| 26 |
|
| 27 |
function applyReplacements( text, replacements ) { |
| 28 |
if ( ! text ) { |
| 29 |
return; |
| 30 |
} |
| 31 |
if ( ! replacements ) { |
| 32 |
return text; |
| 33 |
} |
| 34 |
return text.replace( /{(\d+)}/g, function ( match, number ) { |
| 35 |
return typeof replacements[ number ] !== 'undefined' ? replacements[ number ] : match; |
| 36 |
} ); |
| 37 |
} |
| 38 |
|
| 39 |
function getBackgroundImage( imgEl ) { |
| 40 |
var canvas = document.createElement( 'canvas' ), |
| 41 |
context = canvas.getContext && canvas.getContext( '2d' ); |
| 42 |
|
| 43 |
if ( ! imgEl ) { |
| 44 |
return; |
| 45 |
} |
| 46 |
|
| 47 |
context.filter = 'blur(20px) '; |
| 48 |
context.drawImage( imgEl, 0, 0 ); |
| 49 |
var url = canvas.toDataURL( 'image/png' ); |
| 50 |
canvas = null; // eslint-disable-line no-useless-assignment -- Verify this isn't needed to free memory or something. |
| 51 |
|
| 52 |
return url; |
| 53 |
} |
| 54 |
|
| 55 |
return { |
| 56 |
noop: noop, |
| 57 |
texturize: texturize, |
| 58 |
applyReplacements: applyReplacements, |
| 59 |
getBackgroundImage: getBackgroundImage, |
| 60 |
}; |
| 61 |
} )(); |
| 62 |
|
| 63 |
///////////////////////////////////// |
| 64 |
// DOM-related utility functions |
| 65 |
///////////////////////////////////// |
| 66 |
var domUtil = ( function () { |
| 67 |
// Helper matches function (not a polyfill), compatible with IE 11. |
| 68 |
function matches( el, sel ) { |
| 69 |
if ( Element.prototype.matches ) { |
| 70 |
return el.matches( sel ); |
| 71 |
} |
| 72 |
|
| 73 |
if ( Element.prototype.msMatchesSelector ) { |
| 74 |
return el.msMatchesSelector( sel ); |
| 75 |
} |
| 76 |
} |
| 77 |
|
| 78 |
// Helper closest parent node function (not a polyfill) based on |
| 79 |
// https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill |
| 80 |
function closest( el, sel ) { |
| 81 |
if ( el.closest ) { |
| 82 |
return el.closest( sel ); |
| 83 |
} |
| 84 |
|
| 85 |
var current = el; |
| 86 |
|
| 87 |
do { |
| 88 |
if ( matches( current, sel ) ) { |
| 89 |
return current; |
| 90 |
} |
| 91 |
current = current.parentElement || current.parentNode; |
| 92 |
} while ( current !== null && current.nodeType === 1 ); |
| 93 |
|
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return null; |
| 95 |
} |
| 96 |
|
| 97 |
function hide( el ) { |
| 98 |
if ( el ) { |
| 99 |
el.style.display = 'none'; |
| 100 |
} |
| 101 |
} |
| 102 |
|
| 103 |
function show( el ) { |
| 104 |
if ( el ) { |
| 105 |
// Everything we show and hide in Carousel is currently a block, |
| 106 |
// so we can make this really straightforward. |
| 107 |
el.style.display = 'block'; |
| 108 |
} |
| 109 |
} |
| 110 |
|
| 111 |
/** |
| 112 |
* CSS-transition fade (compositor). Duration + reduced-motion live in the |
| 113 |
* `.jp-carousel-fade` rule. A timer drives the finish, not `transitionend` -- that |
| 114 |
* event is skipped in background tabs / `transition: none` / zero duration, so the |
| 115 |
* timer is the reliable single source. `callback` fires once, after the fade. |
| 116 |
*/ |
| 117 |
function fade( el, start, end, callback ) { |
| 118 |
if ( ! el ) { |
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return callback(); |
| 120 |
} |
| 121 |
|
| 122 |
// A fade already running on this element must not deliver its callback any more. |
| 123 |
if ( el.jpCarouselCancelFade ) { |
| 124 |
el.jpCarouselCancelFade(); |
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} |
| 126 |
|
| 127 |
// Set + commit the start state before attaching the transition, or the fade is swallowed. |
| 128 |
el.classList.remove( 'jp-carousel-fade' ); |
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el.style.removeProperty( 'display' ); |
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el.style.opacity = start; |
| 131 |
el.style.pointerEvents = 'none'; |
| 132 |
|
| 133 |
// Commit the starting opacity, otherwise the browser has nothing to animate from. |
| 134 |
void el.offsetWidth; |
| 135 |
|
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el.classList.add( 'jp-carousel-fade' ); |
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el.style.opacity = end; |
| 138 |
|
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// Read the duration back from the stylesheet so the timer always outlives the transition. |
| 140 |
var duration = parseFloat( getComputedStyle( el ).transitionDuration ) * 1000 || 0; |
| 141 |
|
| 142 |
var timer = setTimeout( function () { |
| 143 |
el.jpCarouselCancelFade = null; |
| 144 |
el.style.removeProperty( 'pointer-events' ); |
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callback(); |
| 146 |
}, duration + 50 ); |
| 147 |
|
| 148 |
el.jpCarouselCancelFade = function () { |
| 149 |
clearTimeout( timer ); |
| 150 |
el.jpCarouselCancelFade = null; |
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}; |
| 152 |
} |
| 153 |
|
| 154 |
function fadeIn( el, callback ) { |
| 155 |
callback = callback || util.noop; |
| 156 |
fade( el, 0, 1, callback ); |
| 157 |
} |
| 158 |
|
| 159 |
function fadeOut( el, callback ) { |
| 160 |
callback = callback || util.noop; |
| 161 |
fade( el, 1, 0, function () { |
| 162 |
if ( el ) { |
| 163 |
el.style.display = 'none'; |
| 164 |
} |
| 165 |
callback(); |
| 166 |
} ); |
| 167 |
} |
| 168 |
|
| 169 |
function emitEvent( el, type, detail ) { |
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var e; |
| 171 |
try { |
| 172 |
e = new CustomEvent( type, { |
| 173 |
bubbles: true, |
| 174 |
cancelable: true, |
| 175 |
detail: detail || null, |
| 176 |
} ); |
| 177 |
} catch { |
| 178 |
e = document.createEvent( 'CustomEvent' ); |
| 179 |
e.initCustomEvent( type, true, true, detail || null ); |
| 180 |
} |
| 181 |
el.dispatchEvent( e ); |
| 182 |
} |
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|
| 184 |
// From: https://easings.net/#easeInOutQuad |
| 185 |
function easeInOutQuad( num ) { |
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return num < 0.5 ? 2 * num * num : 1 - Math.pow( -2 * num + 2, 2 ) / 2; |
| 187 |
} |
| 188 |
|
| 189 |
function getFooterClearance( container ) { |
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var footer = container.querySelector( '.jp-carousel-info-footer' ); |
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var infoArea = container.querySelector( '.jp-carousel-info-extra' ); |
| 192 |
var contentArea = container.querySelector( '.jp-carousel-info-content-wrapper' ); |
| 193 |
|
| 194 |
if ( footer && infoArea && contentArea ) { |
| 195 |
var styles = window.getComputedStyle( infoArea ); |
| 196 |
var padding = parseInt( styles.paddingTop, 10 ) + parseInt( styles.paddingBottom, 10 ); |
| 197 |
padding = isNaN( padding ) ? 0 : padding; |
| 198 |
return contentArea.offsetHeight + footer.offsetHeight + padding; |
| 199 |
} |
| 200 |
return 0; |
| 201 |
} |
| 202 |
|
| 203 |
function isTouch() { |
| 204 |
return ( |
| 205 |
'ontouchstart' in window || ( window.DocumentTouch && document instanceof DocumentTouch ) |
| 206 |
); |
| 207 |
} |
| 208 |
|
| 209 |
function prefersReducedMotion() { |
| 210 |
return ( |
| 211 |
!! window.matchMedia && window.matchMedia( '(prefers-reduced-motion: reduce)' ).matches |
| 212 |
); |
| 213 |
} |
| 214 |
|
| 215 |
function scrollToElement( el, container, callback ) { |
| 216 |
if ( ! el || ! container ) { |
| 217 |
if ( callback ) { |
| 218 |
return callback(); |
| 219 |
} |
| 220 |
return; |
| 221 |
} |
| 222 |
|
| 223 |
// For iOS Safari compatibility, use JS to set the minimum height. |
| 224 |
var infoArea = container.querySelector( '.jp-carousel-info-extra' ); |
| 225 |
if ( infoArea ) { |
| 226 |
// 64px is the same height as `.jp-carousel-info-footer` in the CSS. |
| 227 |
infoArea.style.minHeight = window.innerHeight - 64 + 'px'; |
| 228 |
} |
| 229 |
|
| 230 |
var isScrolling = true; |
| 231 |
var startTime = Date.now(); |
| 232 |
var duration = 300; |
| 233 |
var originalPosition = container.scrollTop; |
| 234 |
var targetPosition = Math.max( |
| 235 |
0, |
| 236 |
el.offsetTop - Math.max( 0, window.innerHeight - getFooterClearance( container ) ) |
| 237 |
); |
| 238 |
var distance = targetPosition - container.scrollTop; |
| 239 |
distance = Math.min( distance, container.scrollHeight - window.innerHeight ); |
| 240 |
|
| 241 |
function stopScroll() { |
| 242 |
isScrolling = false; |
| 243 |
} |
| 244 |
|
| 245 |
function runScroll() { |
| 246 |
var now = Date.now(); |
| 247 |
var progress = easeInOutQuad( ( now - startTime ) / duration ); |
| 248 |
|
| 249 |
progress = progress > 1 ? 1 : progress; |
| 250 |
var newVal = progress * distance; |
| 251 |
container.scrollTop = originalPosition + newVal; |
| 252 |
|
| 253 |
if ( now <= startTime + duration && isScrolling ) { |
| 254 |
return requestAnimationFrame( runScroll ); |
| 255 |
} |
| 256 |
if ( callback ) { |
| 257 |
callback(); |
| 258 |
} |
| 259 |
if ( infoArea ) { |
| 260 |
infoArea.style.minHeight = ''; |
| 261 |
} |
| 262 |
isScrolling = false; |
| 263 |
container.removeEventListener( 'wheel', stopScroll ); |
| 264 |
} |
| 265 |
|
| 266 |
// Allow scroll to be cancelled by user interaction. |
| 267 |
container.addEventListener( 'wheel', stopScroll ); |
| 268 |
runScroll(); |
| 269 |
} |
| 270 |
|
| 271 |
function getJSONAttribute( el, attr ) { |
| 272 |
if ( ! el || ! el.hasAttribute( attr ) ) { |
| 273 |
return undefined; |
| 274 |
} |
| 275 |
|
| 276 |
try { |
| 277 |
return JSON.parse( el.getAttribute( attr ) ); |
| 278 |
} catch { |
| 279 |
return undefined; |
| 280 |
} |
| 281 |
} |
| 282 |
|
| 283 |
function convertToPlainText( html ) { |
| 284 |
var dummy = document.createElement( 'div' ); |
| 285 |
dummy.textContent = html; |
| 286 |
return dummy.innerHTML; |
| 287 |
} |
| 288 |
|
| 289 |
function stripHTML( text ) { |
| 290 |
var tmp = document.createElement( 'div' ); |
| 291 |
tmp.innerHTML = text.replace( /<[^>]*>?/gm, '' ); |
| 292 |
return tmp.textContent; |
| 293 |
} |
| 294 |
|
| 295 |
return { |
| 296 |
closest: closest, |
| 297 |
matches: matches, |
| 298 |
hide: hide, |
| 299 |
show: show, |
| 300 |
fadeIn: fadeIn, |
| 301 |
fadeOut: fadeOut, |
| 302 |
scrollToElement: scrollToElement, |
| 303 |
getJSONAttribute: getJSONAttribute, |
| 304 |
convertToPlainText: convertToPlainText, |
| 305 |
stripHTML: stripHTML, |
| 306 |
emitEvent: emitEvent, |
| 307 |
isTouch: isTouch, |
| 308 |
prefersReducedMotion: prefersReducedMotion, |
| 309 |
}; |
| 310 |
} )(); |
| 311 |
|
| 312 |
///////////////////////////////////// |
| 313 |
// Carousel implementation |
| 314 |
///////////////////////////////////// |
| 315 |
function init() { |
| 316 |
var commentInterval; |
| 317 |
// Rendered comments per attachment, kept for the lifetime of one overlay session. |
| 318 |
var commentsCache = {}; |
| 319 |
// Attachment IDs with a comments request in flight, to prevent overlapping fetches. |
| 320 |
var commentsFetching = {}; |
| 321 |
// Comments the server returns per page; mirrors the `number` arg in get_attachment_comments(). |
| 322 |
var COMMENTS_PER_PAGE = 10; |
| 323 |
var screenPadding; |
| 324 |
var originalOverflow; |
| 325 |
var originalHOverflow; |
| 326 |
var scrollPos; |
| 327 |
|
| 328 |
var lastKnownLocationHash = ''; |
| 329 |
var isUserTyping = false; |
| 330 |
|
| 331 |
var gallerySelector = |
| 332 |
'div.gallery, div.tiled-gallery, ul.wp-block-gallery, ul.blocks-gallery-grid, ' + |
| 333 |
'figure.wp-block-gallery.has-nested-images, div.wp-block-jetpack-tiled-gallery, a.single-image-gallery'; |
| 334 |
|
| 335 |
// Selector for items within a gallery or tiled gallery. |
| 336 |
var galleryItemSelector = |
| 337 |
'.gallery-item, .tiled-gallery-item, .blocks-gallery-item, ' + ' .tiled-gallery__item'; |
| 338 |
|
| 339 |
// Selector for all items including single images. |
| 340 |
var itemSelector = galleryItemSelector + ', .wp-block-image'; |
| 341 |
|
| 342 |
var carousel = {}; |
| 343 |
|
| 344 |
var stat = |
| 345 |
typeof wpcom !== 'undefined' && wpcom.carousel && wpcom.carousel.stat |
| 346 |
? wpcom.carousel.stat |
| 347 |
: util.noop; |
| 348 |
|
| 349 |
var pageview = |
| 350 |
typeof wpcom !== 'undefined' && wpcom.carousel && wpcom.carousel.pageview |
| 351 |
? wpcom.carousel.pageview |
| 352 |
: util.noop; |
| 353 |
|
| 354 |
function handleKeyboardEvent( e ) { |
| 355 |
if ( ! isUserTyping ) { |
| 356 |
switch ( e.which ) { |
| 357 |
case 38: // up |
| 358 |
e.preventDefault(); |
| 359 |
carousel.overlay.scrollTop -= 100; |
| 360 |
break; |
| 361 |
case 40: // down |
| 362 |
e.preventDefault(); |
| 363 |
carousel.overlay.scrollTop += 100; |
| 364 |
break; |
| 365 |
case 39: // right |
| 366 |
e.preventDefault(); |
| 367 |
swiper.slideNext(); |
| 368 |
break; |
| 369 |
case 37: // left |
| 370 |
case 8: // backspace |
| 371 |
e.preventDefault(); |
| 372 |
swiper.slidePrev(); |
| 373 |
break; |
| 374 |
case 27: // escape |
| 375 |
e.preventDefault(); |
| 376 |
closeCarousel(); |
| 377 |
break; |
| 378 |
default: |
| 379 |
break; |
| 380 |
} |
| 381 |
} |
| 382 |
} |
| 383 |
|
| 384 |
function disableKeyboardNavigation() { |
| 385 |
isUserTyping = true; |
| 386 |
} |
| 387 |
|
| 388 |
function enableKeyboardNavigation() { |
| 389 |
isUserTyping = false; |
| 390 |
} |
| 391 |
|
| 392 |
function calculatePadding() { |
| 393 |
var baseScreenPadding = 110; |
| 394 |
screenPadding = baseScreenPadding; |
| 395 |
|
| 396 |
if ( window.innerWidth <= 760 ) { |
| 397 |
screenPadding = Math.round( ( window.innerWidth / 760 ) * baseScreenPadding ); |
| 398 |
|
| 399 |
if ( screenPadding < 40 && domUtil.isTouch() ) { |
| 400 |
screenPadding = 0; |
| 401 |
} |
| 402 |
} |
| 403 |
} |
| 404 |
|
| 405 |
function makeGalleryImageAccessible( img ) { |
| 406 |
img.role = 'button'; |
| 407 |
img.tabIndex = 0; |
| 408 |
img.ariaLabel = jetpackCarouselStrings.image_label; |
| 409 |
} |
| 410 |
|
| 411 |
function initializeCarousel() { |
| 412 |
if ( ! carousel.overlay ) { |
| 413 |
carousel.overlay = document.querySelector( '.jp-carousel-overlay' ); |
| 414 |
carousel.container = carousel.overlay.querySelector( '.jp-carousel-wrap' ); |
| 415 |
carousel.gallery = carousel.container.querySelector( '.jp-carousel' ); |
| 416 |
carousel.info = carousel.overlay.querySelector( '.jp-carousel-info' ); |
| 417 |
carousel.caption = carousel.info.querySelector( '.jp-carousel-caption' ); |
| 418 |
carousel.commentField = carousel.overlay.querySelector( |
| 419 |
'#jp-carousel-comment-form-comment-field' |
| 420 |
); |
| 421 |
carousel.emailField = carousel.overlay.querySelector( |
| 422 |
'#jp-carousel-comment-form-email-field' |
| 423 |
); |
| 424 |
carousel.authorField = carousel.overlay.querySelector( |
| 425 |
'#jp-carousel-comment-form-author-field' |
| 426 |
); |
| 427 |
carousel.urlField = carousel.overlay.querySelector( '#jp-carousel-comment-form-url-field' ); |
| 428 |
|
| 429 |
calculatePadding(); |
| 430 |
|
| 431 |
[ |
| 432 |
carousel.commentField, |
| 433 |
carousel.emailField, |
| 434 |
carousel.authorField, |
| 435 |
carousel.urlField, |
| 436 |
].forEach( function ( field ) { |
| 437 |
if ( field ) { |
| 438 |
field.addEventListener( 'focus', disableKeyboardNavigation ); |
| 439 |
field.addEventListener( 'blur', enableKeyboardNavigation ); |
| 440 |
} |
| 441 |
} ); |
| 442 |
|
| 443 |
carousel.overlay.addEventListener( 'click', function ( e ) { |
| 444 |
var target = e.target; |
| 445 |
var isTargetCloseHint = !! domUtil.closest( target, '.jp-carousel-close-hint' ); |
| 446 |
var isSmallScreen = !! window.matchMedia( '(max-device-width: 760px)' ).matches; |
| 447 |
if ( target === carousel.overlay ) { |
| 448 |
if ( ! isSmallScreen ) { |
| 449 |
closeCarousel(); |
| 450 |
} |
| 451 |
} else if ( isTargetCloseHint ) { |
| 452 |
closeCarousel(); |
| 453 |
} else if ( target.classList.contains( 'jp-carousel-image-download' ) ) { |
| 454 |
stat( 'download_original_click' ); |
| 455 |
} else if ( target.classList.contains( 'jp-carousel-comment-login' ) ) { |
| 456 |
handleCommentLoginClick( e ); |
| 457 |
} else if ( domUtil.closest( target, '#jp-carousel-comment-form-container' ) ) { |
| 458 |
handleCommentFormClick( e ); |
| 459 |
} else if ( |
| 460 |
domUtil.closest( target, '.jp-carousel-photo-icons-container' ) || |
| 461 |
target.classList.contains( 'jp-carousel-photo-title' ) |
| 462 |
) { |
| 463 |
handleFooterElementClick( e ); |
| 464 |
} |
| 465 |
} ); |
| 466 |
|
| 467 |
window.addEventListener( 'keydown', handleKeyboardEvent ); |
| 468 |
|
| 469 |
carousel.overlay.addEventListener( 'jp_carousel.afterOpen', function () { |
| 470 |
enableKeyboardNavigation(); |
| 471 |
|
| 472 |
// Don't show navigation if there's only one image. |
| 473 |
if ( carousel.slides.length <= 1 ) { |
| 474 |
return; |
| 475 |
} |
| 476 |
// Show dot pagination if slide count is <= 5, otherwise show n/total. |
| 477 |
if ( carousel.slides.length <= 5 ) { |
| 478 |
domUtil.show( carousel.info.querySelector( '.jp-swiper-pagination' ) ); |
| 479 |
} else { |
| 480 |
domUtil.show( carousel.info.querySelector( '.jp-carousel-pagination' ) ); |
| 481 |
} |
| 482 |
} ); |
| 483 |
|
| 484 |
carousel.overlay.addEventListener( 'jp_carousel.beforeClose', function () { |
| 485 |
disableKeyboardNavigation(); |
| 486 |
|
| 487 |
// Fixes some themes where closing carousel brings view back to top. |
| 488 |
document.documentElement.style.removeProperty( 'height' ); |
| 489 |
|
| 490 |
// If we disable the swiper (because there's only one image) |
| 491 |
// we have to re-enable it here again as Swiper doesn't, for some reason, |
| 492 |
// show the navigation buttons again after reinitialization. |
| 493 |
if ( swiper ) { |
| 494 |
swiper.enable(); |
| 495 |
} |
| 496 |
|
| 497 |
// Hide pagination. |
| 498 |
domUtil.hide( carousel.info.querySelector( '.jp-swiper-pagination' ) ); |
| 499 |
domUtil.hide( carousel.info.querySelector( '.jp-carousel-pagination' ) ); |
| 500 |
} ); |
| 501 |
|
| 502 |
carousel.overlay.addEventListener( 'jp_carousel.afterClose', function () { |
| 503 |
// don't force the browser back when the carousel closes. |
| 504 |
if ( window.history.pushState ) { |
| 505 |
history.pushState( |
| 506 |
'', |
| 507 |
document.title, |
| 508 |
window.location.pathname + window.location.search |
| 509 |
); |
| 510 |
} else { |
| 511 |
window.location.href = ''; |
| 512 |
} |
| 513 |
lastKnownLocationHash = ''; |
| 514 |
carousel.isOpen = false; |
| 515 |
} ); |
| 516 |
|
| 517 |
// Prevent native browser zooming |
| 518 |
carousel.overlay.addEventListener( 'touchstart', function ( e ) { |
| 519 |
if ( e.touches.length > 1 ) { |
| 520 |
e.preventDefault(); |
| 521 |
} |
| 522 |
} ); |
| 523 |
} |
| 524 |
} |
| 525 |
|
| 526 |
function handleCommentLoginClick() { |
| 527 |
var slide = carousel.currentSlide; |
| 528 |
var attachmentId = slide ? slide.attrs.attachmentId : '0'; |
| 529 |
|
| 530 |
window.location.href = jetpackCarouselStrings.login_url + '%23jp-carousel-' + attachmentId; |
| 531 |
} |
| 532 |
|
| 533 |
function updatePostResults( msg, isSuccess ) { |
| 534 |
var results = carousel.overlay.querySelector( '#jp-carousel-comment-post-results' ); |
| 535 |
var elClass = 'jp-carousel-comment-post-' + ( isSuccess ? 'success' : 'error' ); |
| 536 |
results.innerHTML = '<span class="' + elClass + '">' + msg + '</span>'; |
| 537 |
domUtil.hide( carousel.overlay.querySelector( '#jp-carousel-comment-form-spinner' ) ); |
| 538 |
carousel.overlay |
| 539 |
.querySelector( '#jp-carousel-comment-form' ) |
| 540 |
.classList.remove( 'jp-carousel-is-disabled' ); |
| 541 |
domUtil.show( results ); |
| 542 |
} |
| 543 |
|
| 544 |
function handleCommentFormClick( e ) { |
| 545 |
var target = e.target; |
| 546 |
var data = domUtil.getJSONAttribute( carousel.container, 'data-carousel-extra' ) || {}; |
| 547 |
var attachmentId = carousel.currentSlide.attrs.attachmentId; |
| 548 |
|
| 549 |
var wrapper = document.querySelector( '#jp-carousel-comment-form-submit-and-info-wrapper' ); |
| 550 |
var spinner = document.querySelector( '#jp-carousel-comment-form-spinner' ); |
| 551 |
// eslint-disable-next-line @wordpress/no-unused-vars-before-return |
| 552 |
var submit = document.querySelector( '#jp-carousel-comment-form-button-submit' ); |
| 553 |
var form = document.querySelector( '#jp-carousel-comment-form' ); |
| 554 |
|
| 555 |
if ( |
| 556 |
carousel.commentField && |
| 557 |
carousel.commentField.getAttribute( 'id' ) === target.getAttribute( 'id' ) |
| 558 |
) { |
| 559 |
// For first page load |
| 560 |
disableKeyboardNavigation(); |
| 561 |
domUtil.show( wrapper ); |
| 562 |
} else if ( domUtil.matches( target, 'input[type="submit"]' ) ) { |
| 563 |
e.preventDefault(); |
| 564 |
e.stopPropagation(); |
| 565 |
|
| 566 |
domUtil.show( spinner ); |
| 567 |
form.classList.add( 'jp-carousel-is-disabled' ); |
| 568 |
|
| 569 |
var ajaxData = { |
| 570 |
action: 'post_attachment_comment', |
| 571 |
nonce: jetpackCarouselStrings.nonce, |
| 572 |
blog_id: data.blog_id, |
| 573 |
id: attachmentId, |
| 574 |
comment: carousel.commentField.value, |
| 575 |
}; |
| 576 |
|
| 577 |
if ( ! ajaxData.comment.length ) { |
| 578 |
updatePostResults( jetpackCarouselStrings.no_comment_text, false ); |
| 579 |
return; |
| 580 |
} |
| 581 |
|
| 582 |
if ( Number( jetpackCarouselStrings.is_logged_in ) !== 1 ) { |
| 583 |
ajaxData.email = carousel.emailField.value; |
| 584 |
ajaxData.author = carousel.authorField.value; |
| 585 |
ajaxData.url = carousel.urlField.value; |
| 586 |
|
| 587 |
if ( Number( jetpackCarouselStrings.require_name_email ) === 1 ) { |
| 588 |
if ( ! ajaxData.email.length || ! ajaxData.email.match( '@' ) ) { |
| 589 |
updatePostResults( jetpackCarouselStrings.no_comment_email, false ); |
| 590 |
return; |
| 591 |
} else if ( ! ajaxData.author.length ) { |
| 592 |
updatePostResults( jetpackCarouselStrings.no_comment_author, false ); |
| 593 |
return; |
| 594 |
} |
| 595 |
} |
| 596 |
} |
| 597 |
|
| 598 |
var xhr = new XMLHttpRequest(); |
| 599 |
xhr.open( 'POST', jetpackCarouselStrings.ajaxurl, true ); |
| 600 |
xhr.setRequestHeader( 'X-Requested-With', 'XMLHttpRequest' ); |
| 601 |
xhr.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8' ); |
| 602 |
|
| 603 |
xhr.onreadystatechange = function () { |
| 604 |
if ( |
| 605 |
this.readyState === XMLHttpRequest.DONE && |
| 606 |
this.status >= 200 && |
| 607 |
this.status < 300 |
| 608 |
) { |
| 609 |
var response; |
| 610 |
try { |
| 611 |
response = JSON.parse( this.response ); |
| 612 |
} catch { |
| 613 |
updatePostResults( jetpackCarouselStrings.comment_post_error, false ); |
| 614 |
return; |
| 615 |
} |
| 616 |
if ( response.comment_status === 'approved' ) { |
| 617 |
updatePostResults( jetpackCarouselStrings.comment_approved, true ); |
| 618 |
/* |
| 619 |
Reflect the new comment in the badge total straight away. The refetch |
| 620 |
below only returns the first page, so on attachments with a full page |
| 621 |
of comments it cannot see the increment on its own. Bump the slide the |
| 622 |
comment was posted to -- captured as `attachmentId` -- not whichever |
| 623 |
slide happens to be current when this async response lands. |
| 624 |
*/ |
| 625 |
var postedSlide = getSlideByAttachmentId( attachmentId ); |
| 626 |
if ( postedSlide ) { |
| 627 |
postedSlide.attrs.commentsCount = |
| 628 |
( parseInt( postedSlide.attrs.commentsCount, 10 ) || 0 ) + 1; |
| 629 |
} |
| 630 |
} else if ( response.comment_status === 'unapproved' ) { |
| 631 |
updatePostResults( jetpackCarouselStrings.comment_unapproved, true ); |
| 632 |
} else { |
| 633 |
// 'deleted', 'spam', false |
| 634 |
updatePostResults( jetpackCarouselStrings.comment_post_error, false ); |
| 635 |
} |
| 636 |
clearCommentTextAreaValue(); |
| 637 |
// The new comment invalidates whatever we cached for this attachment. |
| 638 |
delete commentsCache[ attachmentId ]; |
| 639 |
// Force past the in-flight guard so a still-pending first page can't |
| 640 |
// suppress this refresh. |
| 641 |
fetchComments( attachmentId, undefined, true ); |
| 642 |
submit.value = jetpackCarouselStrings.post_comment; |
| 643 |
domUtil.hide( spinner ); |
| 644 |
form.classList.remove( 'jp-carousel-is-disabled' ); |
| 645 |
} else { |
| 646 |
// TODO: Add error handling and display here |
| 647 |
updatePostResults( jetpackCarouselStrings.comment_post_error, false ); |
| 648 |
} |
| 649 |
}; |
| 650 |
|
| 651 |
var params = []; |
| 652 |
for ( var item in ajaxData ) { |
| 653 |
if ( item ) { |
| 654 |
// Encode each form element into a URI-compatible string. |
| 655 |
var encoded = encodeURIComponent( item ) + '=' + encodeURIComponent( ajaxData[ item ] ); |
| 656 |
// In x-www-form-urlencoded, spaces should be `+`, not `%20`. |
| 657 |
params.push( encoded.replace( /%20/g, '+' ) ); |
| 658 |
} |
| 659 |
} |
| 660 |
var encodedData = params.join( '&' ); |
| 661 |
|
| 662 |
xhr.send( encodedData ); |
| 663 |
} |
| 664 |
} |
| 665 |
|
| 666 |
/** |
| 667 |
* Handles clicks to icons and other action elements in the icon container. |
| 668 |
* @param {MouseEvent|TouchEvent|KeyBoardEvent} Event object. |
| 669 |
*/ |
| 670 |
function handleFooterElementClick( e ) { |
| 671 |
e.preventDefault(); |
| 672 |
|
| 673 |
var target = e.target; |
| 674 |
var extraInfoContainer = carousel.info.querySelector( '.jp-carousel-info-extra' ); |
| 675 |
var photoMetaContainer = carousel.info.querySelector( '.jp-carousel-image-meta' ); |
| 676 |
var commentsContainer = carousel.info.querySelector( '.jp-carousel-comments-wrapper' ); |
| 677 |
var infoIcon = carousel.info.querySelector( '.jp-carousel-icon-info' ); |
| 678 |
var commentsIcon = carousel.info.querySelector( '.jp-carousel-icon-comments' ); |
| 679 |
|
| 680 |
function handleInfoToggle() { |
| 681 |
if ( commentsIcon ) { |
| 682 |
commentsIcon.classList.remove( 'jp-carousel-selected' ); |
| 683 |
} |
| 684 |
infoIcon.classList.toggle( 'jp-carousel-selected' ); |
| 685 |
|
| 686 |
if ( commentsContainer ) { |
| 687 |
commentsContainer.classList.remove( 'jp-carousel-show' ); |
| 688 |
} |
| 689 |
if ( photoMetaContainer ) { |
| 690 |
photoMetaContainer.classList.toggle( 'jp-carousel-show' ); |
| 691 |
if ( photoMetaContainer.classList.contains( 'jp-carousel-show' ) ) { |
| 692 |
extraInfoContainer.classList.add( 'jp-carousel-show' ); |
| 693 |
} else { |
| 694 |
extraInfoContainer.classList.remove( 'jp-carousel-show' ); |
| 695 |
} |
| 696 |
} |
| 697 |
} |
| 698 |
|
| 699 |
function handleCommentToggle() { |
| 700 |
if ( infoIcon ) { |
| 701 |
infoIcon.classList.remove( 'jp-carousel-selected' ); |
| 702 |
} |
| 703 |
commentsIcon.classList.toggle( 'jp-carousel-selected' ); |
| 704 |
|
| 705 |
if ( photoMetaContainer ) { |
| 706 |
photoMetaContainer.classList.remove( 'jp-carousel-show' ); |
| 707 |
} |
| 708 |
if ( commentsContainer ) { |
| 709 |
commentsContainer.classList.toggle( 'jp-carousel-show' ); |
| 710 |
if ( commentsContainer.classList.contains( 'jp-carousel-show' ) ) { |
| 711 |
extraInfoContainer.classList.add( 'jp-carousel-show' ); |
| 712 |
// The panel is only now on screen, so this is when the comments are worth fetching. |
| 713 |
var current = carousel.currentSlide; |
| 714 |
if ( current ) { |
| 715 |
var currentCache = commentsCache[ current.attrs.attachmentId ]; |
| 716 |
if ( ! currentCache ) { |
| 717 |
fetchComments( current.attrs.attachmentId ); |
| 718 |
} else if ( currentCache.hasMore ) { |
| 719 |
// Cached page is already shown; re-arm paging for the rest. |
| 720 |
scheduleNextCommentsPage( current.attrs.attachmentId, currentCache.nextOffset ); |
| 721 |
} |
| 722 |
} |
| 723 |
} else { |
| 724 |
extraInfoContainer.classList.remove( 'jp-carousel-show' ); |
| 725 |
} |
| 726 |
} |
| 727 |
} |
| 728 |
|
| 729 |
if ( |
| 730 |
domUtil.closest( target, '.jp-carousel-icon-info' ) || |
| 731 |
target.classList.contains( 'jp-carousel-photo-title' ) |
| 732 |
) { |
| 733 |
if ( photoMetaContainer && photoMetaContainer.classList.contains( 'jp-carousel-show' ) ) { |
| 734 |
domUtil.scrollToElement( carousel.overlay, carousel.overlay, handleInfoToggle ); |
| 735 |
} else { |
| 736 |
handleInfoToggle(); |
| 737 |
domUtil.scrollToElement( carousel.info, carousel.overlay ); |
| 738 |
} |
| 739 |
} |
| 740 |
|
| 741 |
if ( domUtil.closest( target, '.jp-carousel-icon-comments' ) ) { |
| 742 |
if ( commentsContainer && commentsContainer.classList.contains( 'jp-carousel-show' ) ) { |
| 743 |
domUtil.scrollToElement( carousel.overlay, carousel.overlay, handleCommentToggle ); |
| 744 |
} else { |
| 745 |
handleCommentToggle(); |
| 746 |
domUtil.scrollToElement( carousel.info, carousel.overlay ); |
| 747 |
} |
| 748 |
} |
| 749 |
} |
| 750 |
|
| 751 |
function processSingleImageGallery() { |
| 752 |
var images = document.querySelectorAll( 'a img[data-attachment-id]' ); |
| 753 |
Array.prototype.forEach.call( images, function ( image ) { |
| 754 |
var link = image.parentElement; |
| 755 |
var container = link.parentElement; |
| 756 |
|
| 757 |
// Skip if image was already added to gallery by shortcode. |
| 758 |
if ( container.classList.contains( 'gallery-icon' ) ) { |
| 759 |
return; |
| 760 |
} |
| 761 |
|
| 762 |
// Skip if image is part of a gallery. |
| 763 |
if ( domUtil.closest( container, galleryItemSelector ) ) { |
| 764 |
return; |
| 765 |
} |
| 766 |
|
| 767 |
// Skip if the parent is not actually a link. |
| 768 |
if ( ! link.hasAttribute( 'href' ) ) { |
| 769 |
return; |
| 770 |
} |
| 771 |
|
| 772 |
var valid = false; |
| 773 |
|
| 774 |
// If link points to 'Media File' (ignoring GET parameters) and flag is set, allow it. |
| 775 |
if ( |
| 776 |
link.getAttribute( 'href' ).split( '?' )[ 0 ] === |
| 777 |
image.getAttribute( 'data-orig-file' ).split( '?' )[ 0 ] && |
| 778 |
Number( jetpackCarouselStrings.single_image_gallery_media_file ) === 1 |
| 779 |
) { |
| 780 |
valid = true; |
| 781 |
} |
| 782 |
|
| 783 |
// If link points to 'Attachment Page', allow it. |
| 784 |
if ( link.getAttribute( 'href' ) === image.getAttribute( 'data-permalink' ) ) { |
| 785 |
valid = true; |
| 786 |
} |
| 787 |
|
| 788 |
// Links to 'Custom URL' or 'Media File' when flag is not set are not valid. |
| 789 |
if ( ! valid ) { |
| 790 |
return; |
| 791 |
} |
| 792 |
|
| 793 |
makeGalleryImageAccessible( image ); |
| 794 |
|
| 795 |
// Make this node a gallery recognizable by event listener above. |
| 796 |
link.classList.add( 'single-image-gallery' ); |
| 797 |
// blog_id is needed to allow posting comments to correct blog. |
| 798 |
link.setAttribute( |
| 799 |
'data-carousel-extra', |
| 800 |
JSON.stringify( { |
| 801 |
blog_id: Number( jetpackCarouselStrings.blog_id ), |
| 802 |
} ) |
| 803 |
); |
| 804 |
} ); |
| 805 |
} |
| 806 |
|
| 807 |
function testForData( el ) { |
| 808 |
return !! ( el && el.getAttribute( 'data-carousel-extra' ) ); |
| 809 |
} |
| 810 |
|
| 811 |
function openOrSelectSlide( gal, index ) { |
| 812 |
if ( ! carousel.isOpen ) { |
| 813 |
// The `open` method selects the correct slide during the initialization. |
| 814 |
loadSwiper( gal, { startIndex: index } ); |
| 815 |
} else { |
| 816 |
selectSlideAtIndex( index ); |
| 817 |
// We have to force swiper to slide to the index onHasChange. |
| 818 |
swiper.slideTo( index + 1 ); |
| 819 |
} |
| 820 |
} |
| 821 |
|
| 822 |
function getSlideByAttachmentId( attachmentId ) { |
| 823 |
for ( var i = 0; i < carousel.slides.length; i++ ) { |
| 824 |
if ( carousel.slides[ i ].attrs.attachmentId === attachmentId ) { |
| 825 |
return carousel.slides[ i ]; |
| 826 |
} |
| 827 |
} |
| 828 |
return null; |
| 829 |
} |
| 830 |
|
| 831 |
function selectSlideAtIndex( index ) { |
| 832 |
if ( ! index || index < 0 || index > carousel.slides.length ) { |
| 833 |
index = 0; |
| 834 |
} |
| 835 |
carousel.currentSlide = carousel.slides[ index ]; |
| 836 |
|
| 837 |
var current = carousel.currentSlide; |
| 838 |
var attachmentId = current.attrs.attachmentId; |
| 839 |
|
| 840 |
// Load current image immediately |
| 841 |
loadFullImage( carousel.slides[ index ] ); |
| 842 |
|
| 843 |
// Preload adjacent images in background |
| 844 |
preloadAdjacentImages( index ); |
| 845 |
|
| 846 |
if ( |
| 847 |
Number( jetpackCarouselStrings.display_background_image ) === 1 && |
| 848 |
! carousel.slides[ index ].backgroundImage |
| 849 |
) { |
| 850 |
loadBackgroundImage( carousel.slides[ index ] ); |
| 851 |
} |
| 852 |
|
| 853 |
domUtil.hide( carousel.caption ); |
| 854 |
updateTitleCaptionAndDesc( { |
| 855 |
caption: current.attrs.caption, |
| 856 |
title: current.attrs.title, |
| 857 |
desc: current.attrs.desc, |
| 858 |
} ); |
| 859 |
|
| 860 |
var imageMeta = carousel.slides[ index ].attrs.imageMeta; |
| 861 |
updateExif( imageMeta ); |
| 862 |
updateFullSizeLink( current ); |
| 863 |
|
| 864 |
if ( Number( jetpackCarouselStrings.display_comments ) === 1 ) { |
| 865 |
testCommentsOpened( carousel.slides[ index ].attrs.commentsOpened ); |
| 866 |
showCommentsForSlide( current ); |
| 867 |
domUtil.hide( carousel.info.querySelector( '#jp-carousel-comment-post-results' ) ); |
| 868 |
} |
| 869 |
|
| 870 |
// Update pagination in footer. |
| 871 |
var pagination = carousel.info.querySelector( '.jp-carousel-pagination' ); |
| 872 |
if ( pagination && carousel.slides.length > 5 ) { |
| 873 |
var currentPage = index + 1; |
| 874 |
pagination.innerHTML = '<span>' + currentPage + ' / ' + carousel.slides.length + '</span>'; |
| 875 |
} |
| 876 |
|
| 877 |
// Record pageview in WP Stats, for each new image loaded full-screen. |
| 878 |
if ( jetpackCarouselStrings.stats && carousel.isOpen ) { |
| 879 |
new Image().src = |
| 880 |
document.location.protocol + |
| 881 |
'//pixel.wp.com/g.gif?' + |
| 882 |
jetpackCarouselStrings.stats + |
| 883 |
'&post=' + |
| 884 |
encodeURIComponent( attachmentId ) + |
| 885 |
'&rand=' + |
| 886 |
Math.random(); |
| 887 |
} |
| 888 |
|
| 889 |
if ( carousel.isOpen ) { |
| 890 |
pageview( attachmentId ); |
| 891 |
} |
| 892 |
|
| 893 |
lastKnownLocationHash = '#jp-carousel-' + attachmentId; |
| 894 |
window.location.hash = lastKnownLocationHash; |
| 895 |
} |
| 896 |
|
| 897 |
function restoreScroll() { |
| 898 |
window.scrollTo( window.scrollX || window.pageXOffset || 0, scrollPos || 0 ); |
| 899 |
} |
| 900 |
|
| 901 |
function closeCarousel() { |
| 902 |
// Make sure to let the page scroll again. |
| 903 |
document.body.style.overflow = originalOverflow; |
| 904 |
document.documentElement.style.overflow = originalHOverflow; |
| 905 |
clearCommentTextAreaValue(); |
| 906 |
|
| 907 |
disableKeyboardNavigation(); |
| 908 |
|
| 909 |
domUtil.emitEvent( carousel.overlay, 'jp_carousel.beforeClose' ); |
| 910 |
restoreScroll(); |
| 911 |
carousel.isOpen = false; |
| 912 |
swiper.destroy(); |
| 913 |
// Clear slide data for DOM garbage collection. |
| 914 |
carousel.slides = []; |
| 915 |
commentsCache = {}; |
| 916 |
commentsFetching = {}; |
| 917 |
carousel.currentSlide = undefined; |
| 918 |
carousel.gallery.innerHTML = ''; |
| 919 |
|
| 920 |
domUtil.fadeOut( carousel.overlay, function () { |
| 921 |
domUtil.emitEvent( carousel.overlay, 'jp_carousel.afterClose' ); |
| 922 |
} ); |
| 923 |
} |
| 924 |
|
| 925 |
function calculateMaxSlideDimensions() { |
| 926 |
return { |
| 927 |
width: window.innerWidth, |
| 928 |
height: window.innerHeight - 64, //subtract height of bottom info bar, |
| 929 |
}; |
| 930 |
} |
| 931 |
|
| 932 |
function sanitizePhotonUrl( url ) { |
| 933 |
var urlObj; |
| 934 |
try { |
| 935 |
urlObj = new URL( url ); |
| 936 |
// eslint-disable-next-line no-unused-vars |
| 937 |
} catch ( e ) { |
| 938 |
return url; |
| 939 |
} |
| 940 |
|
| 941 |
var whitelistedPhotonArgs = [ |
| 942 |
'quality', |
| 943 |
'ssl', |
| 944 |
'filter', |
| 945 |
'brightness', |
| 946 |
'contrast', |
| 947 |
'colorize', |
| 948 |
'smooth', |
| 949 |
]; |
| 950 |
|
| 951 |
// Get all search params |
| 952 |
var searchParams = Array.from( urlObj.searchParams.entries() ); |
| 953 |
|
| 954 |
// Clear all existing params |
| 955 |
urlObj.search = ''; |
| 956 |
|
| 957 |
// Only add back whitelisted params |
| 958 |
searchParams.forEach( ( [ key, value ] ) => { |
| 959 |
if ( whitelistedPhotonArgs.includes( key ) ) { |
| 960 |
urlObj.searchParams.append( key, value ); |
| 961 |
} |
| 962 |
} ); |
| 963 |
|
| 964 |
return urlObj; |
| 965 |
} |
| 966 |
|
| 967 |
function selectBestImageUrl( args ) { |
| 968 |
if ( typeof args !== 'object' ) { |
| 969 |
args = {}; |
| 970 |
} |
| 971 |
|
| 972 |
if ( typeof args.origFile === 'undefined' ) { |
| 973 |
return ''; |
| 974 |
} |
| 975 |
|
| 976 |
if ( typeof args.origWidth === 'undefined' || typeof args.maxWidth === 'undefined' ) { |
| 977 |
return args.origFile; |
| 978 |
} |
| 979 |
|
| 980 |
// When there's no large file to fall back on (e.g. images that weren't enriched with |
| 981 |
// Jetpack's data-large-file attribute), use the original file. A missing attribute is |
| 982 |
// read as an empty string, so we can't only guard against `undefined` here: otherwise a |
| 983 |
// narrow (portrait, mobile) viewport would return that empty string as the image source, |
| 984 |
// leaving the carousel with a blank slide. |
| 985 |
if ( ! args.largeFile ) { |
| 986 |
return args.origFile; |
| 987 |
} |
| 988 |
|
| 989 |
// Check if the image is being served by Photon (using a regular expression on the hostname). |
| 990 |
|
| 991 |
var imageLinkParser = document.createElement( 'a' ); |
| 992 |
imageLinkParser.href = args.largeFile; |
| 993 |
|
| 994 |
var isPhotonUrl = /^i[0-2]\.wp\.com$/i.test( imageLinkParser.hostname ); |
| 995 |
|
| 996 |
var largeSizeParts = getImageSizeParts( args.largeFile, args.origWidth, isPhotonUrl ); |
| 997 |
|
| 998 |
var largeWidth = parseInt( largeSizeParts[ 0 ], 10 ); |
| 999 |
var largeHeight = parseInt( largeSizeParts[ 1 ], 10 ); |
| 1000 |
|
| 1001 |
args.origMaxWidth = args.maxWidth; |
| 1002 |
args.origMaxHeight = args.maxHeight; |
| 1003 |
|
| 1004 |
// Give devices with a higher devicePixelRatio higher-res images (Retina display = 2, Android phones = 1.5, etc) |
| 1005 |
if ( typeof window.devicePixelRatio !== 'undefined' && window.devicePixelRatio > 1 ) { |
| 1006 |
args.maxWidth = args.maxWidth * window.devicePixelRatio; |
| 1007 |
args.maxHeight = args.maxHeight * window.devicePixelRatio; |
| 1008 |
} |
| 1009 |
|
| 1010 |
/* |
| 1011 |
`maxWidth`/`maxHeight` now describe the device resolution. Anything beyond that is |
| 1012 |
headroom for zooming, so only the zoom request asks for it. The multiplier is folded |
| 1013 |
in here -- ahead of the size checks below -- so the zoom rendition keeps its extra |
| 1014 |
resolution even when the unzoomed one is already covered by `data-large-file`. |
| 1015 |
Without it, every slide would fetch ~4x the pixels the screen can show. |
| 1016 |
*/ |
| 1017 |
var headroom = args.zoomHeadroom || 1; |
| 1018 |
if ( headroom > 1 ) { |
| 1019 |
args.maxWidth = args.maxWidth * headroom; |
| 1020 |
args.maxHeight = args.maxHeight * headroom; |
| 1021 |
} |
| 1022 |
|
| 1023 |
if ( largeWidth >= args.maxWidth || largeHeight >= args.maxHeight ) { |
| 1024 |
return args.largeFile; |
| 1025 |
} |
| 1026 |
|
| 1027 |
if ( isPhotonUrl ) { |
| 1028 |
// args.origFile doesn't point to a Photon url, so in this case we use args.largeFile |
| 1029 |
// to return the photon url of the original image. |
| 1030 |
if ( args.largeFile.lastIndexOf( '?' ) === -1 ) { |
| 1031 |
return args.largeFile; |
| 1032 |
} |
| 1033 |
|
| 1034 |
// Sanitize the URL to remove non-cosmetic changes like resize, fit, etc. |
| 1035 |
var sanitizedUrl = sanitizePhotonUrl( args.largeFile ); |
| 1036 |
|
| 1037 |
// If we have a really large image load a smaller version |
| 1038 |
// that is closer to the viewable size |
| 1039 |
if ( args.origWidth > args.maxWidth || args.origHeight > args.maxHeight ) { |
| 1040 |
args.origMaxWidth = args.maxWidth; |
| 1041 |
args.origMaxHeight = args.maxHeight; |
| 1042 |
// Add the fit arg to the list of Photon args. |
| 1043 |
sanitizedUrl.searchParams.set( 'fit', args.origMaxWidth + ',' + args.origMaxHeight ); |
| 1044 |
} |
| 1045 |
|
| 1046 |
// Return a Photon URL image that's better fitted for the viewport. |
| 1047 |
return sanitizedUrl.toString(); |
| 1048 |
} |
| 1049 |
|
| 1050 |
return args.origFile; |
| 1051 |
} |
| 1052 |
|
| 1053 |
function getImageSizeParts( file, origWidth, isPhotonUrl ) { |
| 1054 |
var size = isPhotonUrl |
| 1055 |
? file.replace( /.*=([\d]+%2C[\d]+).*$/, '$1' ) |
| 1056 |
: file.replace( /.*-([\d]+x[\d]+)\..+$/, '$1' ); |
| 1057 |
|
| 1058 |
var sizeParts; |
| 1059 |
if ( size !== file ) { |
| 1060 |
sizeParts = isPhotonUrl ? size.split( '%2C' ) : size.split( 'x' ); |
| 1061 |
} else { |
| 1062 |
sizeParts = [ origWidth, 0 ]; |
| 1063 |
} |
| 1064 |
|
| 1065 |
// If one of the dimensions is set to 9999, then the actual value of that dimension can't be retrieved from the url. |
| 1066 |
// In that case, we set the value to 0. |
| 1067 |
if ( sizeParts[ 0 ] === '9999' ) { |
| 1068 |
sizeParts[ 0 ] = '0'; |
| 1069 |
} |
| 1070 |
|
| 1071 |
if ( sizeParts[ 1 ] === '9999' ) { |
| 1072 |
sizeParts[ 1 ] = '0'; |
| 1073 |
} |
| 1074 |
|
| 1075 |
return sizeParts; |
| 1076 |
} |
| 1077 |
|
| 1078 |
/** |
| 1079 |
* Returns a number in a fraction format that represents the shutter speed. |
| 1080 |
* @param Number speed |
| 1081 |
* @return String |
| 1082 |
*/ |
| 1083 |
function formatShutterSpeed( speed ) { |
| 1084 |
var denominator; |
| 1085 |
|
| 1086 |
// round to one decimal if value > 1s by multiplying it by 10, rounding, then dividing by 10 again |
| 1087 |
if ( speed >= 1 ) { |
| 1088 |
return Math.round( speed * 10 ) / 10 + 's'; |
| 1089 |
} |
| 1090 |
|
| 1091 |
// If the speed is less than one, we find the denominator by inverting |
| 1092 |
// the number. Since cameras usually use rational numbers as shutter |
| 1093 |
// speeds, we should get a nice round number. Or close to one in cases |
| 1094 |
// like 1/30. So we round it. |
| 1095 |
denominator = Math.round( 1 / speed ); |
| 1096 |
|
| 1097 |
return '1/' + denominator + 's'; |
| 1098 |
} |
| 1099 |
|
| 1100 |
function parseTitleOrDesc( value ) { |
| 1101 |
if ( ! value.match( ' ' ) && value.match( '_' ) ) { |
| 1102 |
return ''; |
| 1103 |
} |
| 1104 |
|
| 1105 |
return value; |
| 1106 |
} |
| 1107 |
|
| 1108 |
function updateTitleCaptionAndDesc( data ) { |
| 1109 |
var caption; |
| 1110 |
var title; |
| 1111 |
var desc; |
| 1112 |
var captionMainElement; |
| 1113 |
var captionInfoExtraElement; |
| 1114 |
var titleElement; |
| 1115 |
var descriptionElement; |
| 1116 |
|
| 1117 |
captionMainElement = carousel.overlay.querySelector( '.jp-carousel-photo-caption' ); |
| 1118 |
captionInfoExtraElement = carousel.overlay.querySelector( '.jp-carousel-caption' ); |
| 1119 |
|
| 1120 |
titleElement = carousel.overlay.querySelector( '.jp-carousel-photo-title' ); |
| 1121 |
descriptionElement = carousel.overlay.querySelector( '.jp-carousel-photo-description' ); |
| 1122 |
|
| 1123 |
domUtil.hide( captionMainElement ); |
| 1124 |
domUtil.hide( captionInfoExtraElement ); |
| 1125 |
domUtil.hide( titleElement ); |
| 1126 |
domUtil.hide( descriptionElement ); |
| 1127 |
|
| 1128 |
caption = parseTitleOrDesc( data.caption ) || ''; |
| 1129 |
title = parseTitleOrDesc( data.title ) || ''; |
| 1130 |
desc = parseTitleOrDesc( data.desc ) || ''; |
| 1131 |
|
| 1132 |
if ( caption || title || desc ) { |
| 1133 |
if ( caption ) { |
| 1134 |
captionMainElement.innerHTML = caption; |
| 1135 |
captionInfoExtraElement.innerHTML = caption; |
| 1136 |
|
| 1137 |
domUtil.show( captionMainElement ); |
| 1138 |
domUtil.show( captionInfoExtraElement ); |
| 1139 |
} |
| 1140 |
|
| 1141 |
if ( domUtil.stripHTML( caption ) === domUtil.stripHTML( title ) ) { |
| 1142 |
title = ''; |
| 1143 |
} |
| 1144 |
|
| 1145 |
if ( domUtil.stripHTML( caption ) === domUtil.stripHTML( desc ) ) { |
| 1146 |
desc = ''; |
| 1147 |
} |
| 1148 |
|
| 1149 |
if ( domUtil.stripHTML( title ) === domUtil.stripHTML( desc ) ) { |
| 1150 |
desc = ''; |
| 1151 |
} |
| 1152 |
|
| 1153 |
if ( desc ) { |
| 1154 |
descriptionElement.innerHTML = desc; |
| 1155 |
domUtil.show( descriptionElement ); |
| 1156 |
|
| 1157 |
if ( ! title && ! caption ) { |
| 1158 |
captionMainElement.textContent = domUtil.stripHTML( desc ); |
| 1159 |
domUtil.show( captionMainElement ); |
| 1160 |
} |
| 1161 |
} |
| 1162 |
|
| 1163 |
if ( title ) { |
| 1164 |
var plainTitle = domUtil.stripHTML( title ); |
| 1165 |
titleElement.textContent = plainTitle; |
| 1166 |
|
| 1167 |
if ( ! caption ) { |
| 1168 |
captionMainElement.textContent = plainTitle; |
| 1169 |
captionInfoExtraElement.textContent = plainTitle; |
| 1170 |
|
| 1171 |
domUtil.show( captionMainElement ); |
| 1172 |
} |
| 1173 |
|
| 1174 |
domUtil.show( titleElement ); |
| 1175 |
} |
| 1176 |
} |
| 1177 |
} |
| 1178 |
|
| 1179 |
// updateExif updates the contents of the exif UL (.jp-carousel-image-exif) |
| 1180 |
function updateExif( meta ) { |
| 1181 |
if ( ! meta || Number( jetpackCarouselStrings.display_exif ) !== 1 ) { |
| 1182 |
return false; |
| 1183 |
} |
| 1184 |
|
| 1185 |
// Locate the parent container for the metadata. |
| 1186 |
var metaContainer = carousel.info.querySelector( '.jp-carousel-image-meta' ); |
| 1187 |
if ( ! metaContainer ) { |
| 1188 |
return false; |
| 1189 |
} |
| 1190 |
|
| 1191 |
var html = ''; |
| 1192 |
|
| 1193 |
for ( var key in meta ) { |
| 1194 |
var val = meta[ key ]; |
| 1195 |
var metaKeys = jetpackCarouselStrings.meta_data || []; |
| 1196 |
|
| 1197 |
if ( parseFloat( val ) === 0 || ! val.length || metaKeys.indexOf( key ) === -1 ) { |
| 1198 |
continue; |
| 1199 |
} |
| 1200 |
|
| 1201 |
switch ( key ) { |
| 1202 |
case 'focal_length': |
| 1203 |
val = val + 'mm'; |
| 1204 |
break; |
| 1205 |
case 'shutter_speed': |
| 1206 |
val = formatShutterSpeed( val ); |
| 1207 |
break; |
| 1208 |
case 'aperture': |
| 1209 |
val = 'f/' + val; |
| 1210 |
break; |
| 1211 |
} |
| 1212 |
|
| 1213 |
html += '<li><h5>' + jetpackCarouselStrings[ key ] + '</h5>' + val + '</li>'; |
| 1214 |
} |
| 1215 |
|
| 1216 |
// Handle the UL element dynamically to ensure valid markup. |
| 1217 |
var ul = metaContainer.querySelector( 'ul.jp-carousel-image-exif' ); |
| 1218 |
|
| 1219 |
if ( html !== '' ) { |
| 1220 |
// If there is data to display and the UL doesn't exist, create it. |
| 1221 |
if ( ! ul ) { |
| 1222 |
ul = document.createElement( 'ul' ); |
| 1223 |
ul.className = 'jp-carousel-image-exif'; |
| 1224 |
|
| 1225 |
// Insert right after the title/caption container if it exists, otherwise prepend |
| 1226 |
var titleAndCaption = metaContainer.querySelector( '.jp-carousel-title-and-caption' ); |
| 1227 |
if ( titleAndCaption && titleAndCaption.nextSibling ) { |
| 1228 |
metaContainer.insertBefore( ul, titleAndCaption.nextSibling ); |
| 1229 |
} else { |
| 1230 |
metaContainer.insertBefore( ul, metaContainer.firstChild ); |
| 1231 |
} |
| 1232 |
} |
| 1233 |
ul.innerHTML = html; |
| 1234 |
ul.style.removeProperty( 'display' ); |
| 1235 |
} else if ( ul ) { |
| 1236 |
// If the data is empty but the UL exists in the DOM, remove it. |
| 1237 |
ul.parentNode.removeChild( ul ); |
| 1238 |
} |
| 1239 |
} |
| 1240 |
|
| 1241 |
// Update the contents of the jp-carousel-image-download link |
| 1242 |
function updateFullSizeLink( currentSlide ) { |
| 1243 |
if ( ! currentSlide ) { |
| 1244 |
return false; |
| 1245 |
} |
| 1246 |
var original; |
| 1247 |
var origSize = [ currentSlide.attrs.origWidth, currentSlide.attrs.origHeight ]; |
| 1248 |
var imageLinkParser = document.createElement( 'a' ); |
| 1249 |
|
| 1250 |
imageLinkParser.href = currentSlide.attrs.src.replace( /\?.+$/, '' ); |
| 1251 |
|
| 1252 |
// Is this a Photon URL? |
| 1253 |
if ( imageLinkParser.hostname.match( /^i[\d]{1}\.wp\.com$/i ) !== null ) { |
| 1254 |
original = imageLinkParser.href; |
| 1255 |
} else { |
| 1256 |
original = currentSlide.attrs.origFile.replace( /\?.+$/, '' ); |
| 1257 |
} |
| 1258 |
|
| 1259 |
var downloadText = carousel.info.querySelector( '.jp-carousel-download-text' ); |
| 1260 |
var permalink = carousel.info.querySelector( '.jp-carousel-image-download' ); |
| 1261 |
|
| 1262 |
downloadText.innerHTML = util.applyReplacements( |
| 1263 |
jetpackCarouselStrings.download_original, |
| 1264 |
origSize |
| 1265 |
); |
| 1266 |
permalink.setAttribute( 'href', original ); |
| 1267 |
permalink.style.removeProperty( 'display' ); |
| 1268 |
} |
| 1269 |
|
| 1270 |
function testCommentsOpened( opened ) { |
| 1271 |
var commentForm = carousel.info.querySelector( '#jp-carousel-comment-form-container' ); |
| 1272 |
var isOpened = parseInt( opened, 10 ) === 1; |
| 1273 |
|
| 1274 |
if ( isOpened ) { |
| 1275 |
domUtil.fadeIn( commentForm ); |
| 1276 |
} else { |
| 1277 |
domUtil.fadeOut( commentForm ); |
| 1278 |
} |
| 1279 |
} |
| 1280 |
|
| 1281 |
function isCommentsPanelOpen() { |
| 1282 |
var wrapper = carousel.info.querySelector( '.jp-carousel-comments-wrapper' ); |
| 1283 |
return !! wrapper && wrapper.classList.contains( 'jp-carousel-show' ); |
| 1284 |
} |
| 1285 |
|
| 1286 |
function updateCommentsIndicator( count ) { |
| 1287 |
var indicator = carousel.info.querySelector( |
| 1288 |
'.jp-carousel-icon-comments .jp-carousel-has-comments-indicator' |
| 1289 |
); |
| 1290 |
|
| 1291 |
if ( ! indicator ) { |
| 1292 |
return; |
| 1293 |
} |
| 1294 |
|
| 1295 |
if ( count > 0 ) { |
| 1296 |
indicator.innerText = count; |
| 1297 |
indicator.classList.add( 'jp-carousel-show' ); |
| 1298 |
} else { |
| 1299 |
indicator.classList.remove( 'jp-carousel-show' ); |
| 1300 |
} |
| 1301 |
} |
| 1302 |
|
| 1303 |
/** |
| 1304 |
* Show what we already know about a slide's comments, and fetch the rest only if the |
| 1305 |
* comments panel is actually on screen. The comment list used to be re-fetched from |
| 1306 |
* admin-ajax on every single slide change, even though it is hidden by default. |
| 1307 |
* @param {object} slide - The slide being shown. |
| 1308 |
*/ |
| 1309 |
function showCommentsForSlide( slide ) { |
| 1310 |
var attachmentId = slide.attrs.attachmentId; |
| 1311 |
var comments = carousel.info.querySelector( '.jp-carousel-comments' ); |
| 1312 |
var cached = commentsCache[ attachmentId ]; |
| 1313 |
|
| 1314 |
clearInterval( commentInterval ); |
| 1315 |
domUtil.hide( carousel.info.querySelector( '#jp-carousel-comments-loading' ) ); |
| 1316 |
|
| 1317 |
if ( cached ) { |
| 1318 |
comments.innerHTML = cached.html; |
| 1319 |
updateCommentsIndicator( cached.count ); |
| 1320 |
domUtil.show( comments ); |
| 1321 |
/* |
| 1322 |
Resume paging if the cached run ended on a full page, so returning to a slide |
| 1323 |
does not strand the comments past the first page. Only while the panel is on |
| 1324 |
screen, mirroring the fresh-fetch path below. |
| 1325 |
*/ |
| 1326 |
if ( cached.hasMore && isCommentsPanelOpen() ) { |
| 1327 |
scheduleNextCommentsPage( attachmentId, cached.nextOffset ); |
| 1328 |
} |
| 1329 |
return; |
| 1330 |
} |
| 1331 |
|
| 1332 |
comments.innerHTML = ''; |
| 1333 |
domUtil.hide( comments ); |
| 1334 |
// The server tells us the count up front, so the badge costs no request. |
| 1335 |
updateCommentsIndicator( parseInt( slide.attrs.commentsCount, 10 ) || 0 ); |
| 1336 |
|
| 1337 |
if ( isCommentsPanelOpen() ) { |
| 1338 |
fetchComments( attachmentId ); |
| 1339 |
} |
| 1340 |
} |
| 1341 |
|
| 1342 |
/** |
| 1343 |
* Fetch the next page of comments once the reader scrolls near the bottom. |
| 1344 |
* @param {string} attachmentId - The attachment whose comments are shown. |
| 1345 |
* @param {number} nextOffset - Offset of the page to load next. |
| 1346 |
*/ |
| 1347 |
function scheduleNextCommentsPage( attachmentId, nextOffset ) { |
| 1348 |
clearInterval( commentInterval ); |
| 1349 |
commentInterval = setInterval( function () { |
| 1350 |
if ( carousel.container.scrollTop + 150 > window.innerHeight ) { |
| 1351 |
clearInterval( commentInterval ); |
| 1352 |
fetchComments( attachmentId, nextOffset ); |
| 1353 |
} |
| 1354 |
}, 300 ); |
| 1355 |
} |
| 1356 |
|
| 1357 |
function fetchComments( attachmentId, offset, force ) { |
| 1358 |
var shouldClear = offset === undefined; |
| 1359 |
|
| 1360 |
clearInterval( commentInterval ); |
| 1361 |
|
| 1362 |
if ( ! attachmentId ) { |
| 1363 |
return; |
| 1364 |
} |
| 1365 |
|
| 1366 |
/* |
| 1367 |
The comments UI is shared and only ever shows the current slide, so a request for |
| 1368 |
any other slide (e.g. a post-submit refetch after the reader has navigated on) must |
| 1369 |
not touch it. |
| 1370 |
*/ |
| 1371 |
if ( ! carousel.currentSlide || carousel.currentSlide.attrs.attachmentId !== attachmentId ) { |
| 1372 |
return; |
| 1373 |
} |
| 1374 |
|
| 1375 |
/* |
| 1376 |
One request per attachment at a time, so a reopen mid-flight can't double-load. |
| 1377 |
`force` (a post-submit refresh) supersedes instead: the newest request is recorded |
| 1378 |
below and any older one's response bails on the identity check. |
| 1379 |
*/ |
| 1380 |
if ( commentsFetching[ attachmentId ] && ! force ) { |
| 1381 |
return; |
| 1382 |
} |
| 1383 |
|
| 1384 |
if ( ! offset || offset < 1 ) { |
| 1385 |
offset = 0; |
| 1386 |
} |
| 1387 |
|
| 1388 |
var comments = carousel.info.querySelector( '.jp-carousel-comments' ); |
| 1389 |
var commentsLoading = carousel.info.querySelector( '#jp-carousel-comments-loading' ); |
| 1390 |
domUtil.show( commentsLoading ); |
| 1391 |
|
| 1392 |
if ( shouldClear ) { |
| 1393 |
domUtil.hide( comments ); |
| 1394 |
comments.innerHTML = ''; |
| 1395 |
} |
| 1396 |
|
| 1397 |
var xhr = new XMLHttpRequest(); |
| 1398 |
// Record this as the live request for the attachment; a later `force` fetch replaces it. |
| 1399 |
commentsFetching[ attachmentId ] = xhr; |
| 1400 |
|
| 1401 |
// True while `xhr` is still the attachment's live request (not superseded). |
| 1402 |
var isLiveRequest = function () { |
| 1403 |
return commentsFetching[ attachmentId ] === xhr; |
| 1404 |
}; |
| 1405 |
|
| 1406 |
var url = |
| 1407 |
jetpackCarouselStrings.ajaxurl + |
| 1408 |
'?action=get_attachment_comments' + |
| 1409 |
'&nonce=' + |
| 1410 |
jetpackCarouselStrings.nonce + |
| 1411 |
'&id=' + |
| 1412 |
attachmentId + |
| 1413 |
'&offset=' + |
| 1414 |
offset; |
| 1415 |
xhr.open( 'GET', url ); |
| 1416 |
xhr.setRequestHeader( 'X-Requested-With', 'XMLHttpRequest' ); |
| 1417 |
|
| 1418 |
// Reveal the comments and clear the loading state; callers gate this themselves. |
| 1419 |
var revealComments = function () { |
| 1420 |
domUtil.fadeIn( comments ); |
| 1421 |
domUtil.fadeOut( commentsLoading ); |
| 1422 |
}; |
| 1423 |
|
| 1424 |
// Network-level failure (fires without onload); guard it like a late response. |
| 1425 |
var onError = function () { |
| 1426 |
// A newer (forced) request has superseded this one; leave the UI to it. |
| 1427 |
if ( ! isLiveRequest() ) { |
| 1428 |
return; |
| 1429 |
} |
| 1430 |
delete commentsFetching[ attachmentId ]; |
| 1431 |
|
| 1432 |
// Only touch the shared UI if this attachment is still on screen. |
| 1433 |
if ( |
| 1434 |
! carousel.currentSlide || |
| 1435 |
carousel.currentSlide.attrs.attachmentId !== attachmentId |
| 1436 |
) { |
| 1437 |
return; |
| 1438 |
} |
| 1439 |
revealComments(); |
| 1440 |
}; |
| 1441 |
|
| 1442 |
xhr.onload = function () { |
| 1443 |
// A newer (forced) request has superseded this one; drop its result. |
| 1444 |
if ( ! isLiveRequest() ) { |
| 1445 |
return; |
| 1446 |
} |
| 1447 |
// The request is done, whatever the outcome below. |
| 1448 |
delete commentsFetching[ attachmentId ]; |
| 1449 |
|
| 1450 |
// Ignore the results if they arrive late and we're now on a different slide. |
| 1451 |
if ( |
| 1452 |
! carousel.currentSlide || |
| 1453 |
carousel.currentSlide.attrs.attachmentId !== attachmentId |
| 1454 |
) { |
| 1455 |
return; |
| 1456 |
} |
| 1457 |
|
| 1458 |
var isSuccess = xhr.status >= 200 && xhr.status < 300; |
| 1459 |
var data; |
| 1460 |
try { |
| 1461 |
data = JSON.parse( xhr.responseText ); |
| 1462 |
} catch { |
| 1463 |
// Do nothing. |
| 1464 |
} |
| 1465 |
|
| 1466 |
if ( ! isSuccess || ! data || ! Array.isArray( data ) ) { |
| 1467 |
// Already past the identity/current-slide guards above. |
| 1468 |
revealComments(); |
| 1469 |
return; |
| 1470 |
} |
| 1471 |
|
| 1472 |
if ( shouldClear ) { |
| 1473 |
comments.innerHTML = ''; |
| 1474 |
} |
| 1475 |
|
| 1476 |
for ( var i = 0; i < data.length; i++ ) { |
| 1477 |
var entry = data[ i ]; |
| 1478 |
// Skip anything already on screen: a page can be requested twice if the |
| 1479 |
// reader re-opens a slide while its previous request is still in flight. |
| 1480 |
if ( comments.querySelector( '#jp-carousel-comment-' + entry.id ) ) { |
| 1481 |
continue; |
| 1482 |
} |
| 1483 |
var comment = document.createElement( 'div' ); |
| 1484 |
comment.classList.add( 'jp-carousel-comment' ); |
| 1485 |
comment.setAttribute( 'id', 'jp-carousel-comment-' + entry.id ); |
| 1486 |
comment.innerHTML = |
| 1487 |
'<div class="comment-gravatar">' + |
| 1488 |
entry.gravatar_markup + |
| 1489 |
'</div>' + |
| 1490 |
'<div class="comment-content">' + |
| 1491 |
'<div class="comment-author">' + |
| 1492 |
entry.author_markup + |
| 1493 |
'</div>' + |
| 1494 |
'<div class="comment-date">' + |
| 1495 |
entry.date_gmt + |
| 1496 |
'</div>' + |
| 1497 |
entry.content + |
| 1498 |
'</div>'; |
| 1499 |
comments.appendChild( comment ); |
| 1500 |
} |
| 1501 |
|
| 1502 |
/* |
| 1503 |
A full page back means there may be more; watch for a scroll to the bottom to |
| 1504 |
load the next one. A short page means we have reached the end. |
| 1505 |
*/ |
| 1506 |
var hasMore = data.length >= COMMENTS_PER_PAGE; |
| 1507 |
var nextOffset = offset + COMMENTS_PER_PAGE; |
| 1508 |
if ( hasMore ) { |
| 1509 |
scheduleNextCommentsPage( attachmentId, nextOffset ); |
| 1510 |
} |
| 1511 |
|
| 1512 |
/* |
| 1513 |
The endpoint returns at most one page, so prefer the server's total where we |
| 1514 |
have it and only count what we rendered as a fallback. |
| 1515 |
*/ |
| 1516 |
var rendered = comments.querySelectorAll( '.jp-carousel-comment' ).length; |
| 1517 |
var count = Math.max( |
| 1518 |
parseInt( carousel.currentSlide.attrs.commentsCount, 10 ) || 0, |
| 1519 |
rendered |
| 1520 |
); |
| 1521 |
|
| 1522 |
if ( data.length > 0 ) { |
| 1523 |
domUtil.show( comments ); |
| 1524 |
updateCommentsIndicator( count ); |
| 1525 |
} |
| 1526 |
|
| 1527 |
/* |
| 1528 |
Keep what we rendered for as long as the overlay is open, so going back to a |
| 1529 |
slide costs nothing -- including where to resume paging from. |
| 1530 |
*/ |
| 1531 |
commentsCache[ attachmentId ] = { |
| 1532 |
html: comments.innerHTML, |
| 1533 |
count: count, |
| 1534 |
hasMore: hasMore, |
| 1535 |
nextOffset: nextOffset, |
| 1536 |
}; |
| 1537 |
|
| 1538 |
domUtil.hide( commentsLoading ); |
| 1539 |
}; |
| 1540 |
|
| 1541 |
xhr.onerror = onError; |
| 1542 |
|
| 1543 |
xhr.send(); |
| 1544 |
} |
| 1545 |
|
| 1546 |
function loadFullImage( slide ) { |
| 1547 |
var attrs = slide.attrs; |
| 1548 |
var image = slide.el.querySelector( 'img' ); |
| 1549 |
|
| 1550 |
if ( image.hasAttribute( 'data-loaded' ) ) { |
| 1551 |
return; |
| 1552 |
} |
| 1553 |
|
| 1554 |
image.setAttribute( 'itemprop', 'image' ); |
| 1555 |
image.setAttribute( 'data-loaded', 1 ); |
| 1556 |
|
| 1557 |
var hasPreview = attrs.previewImage && attrs.previewImage !== attrs.src; |
| 1558 |
|
| 1559 |
if ( ! hasPreview ) { |
| 1560 |
// No usable in-page thumbnail (e.g. a lazy-loading plugin swapped the |
| 1561 |
// gallery src for a placeholder). Load the full-size image straight |
| 1562 |
// into the visible element so the slide is never left without a src. |
| 1563 |
image.src = attrs.src; |
| 1564 |
return; |
| 1565 |
} |
| 1566 |
|
| 1567 |
// Show the thumbnail the browser has already decoded for this image in the |
| 1568 |
// post itself. Without it the slide stays empty until the full-size image |
| 1569 |
// arrives, which reads as a black screen whenever the reader moves through |
| 1570 |
// the gallery faster than the images can download. |
| 1571 |
image.src = attrs.previewImage; |
| 1572 |
// The thumbnail is much smaller than the slide, so soften the upscale |
| 1573 |
// until the full-size image replaces it. |
| 1574 |
image.style.filter = 'blur(8px)'; |
| 1575 |
|
| 1576 |
// Load the full-size image off-DOM, then swap it in over the preview. On |
| 1577 |
// error the (blurred) preview stays put rather than reverting to blank. |
| 1578 |
var fullImage = new window.Image(); |
| 1579 |
|
| 1580 |
fullImage.addEventListener( |
| 1581 |
'load', |
| 1582 |
function () { |
| 1583 |
/* |
| 1584 |
If the visitor zoomed while this was still downloading, a larger rendition |
| 1585 |
is already in place -- don't downgrade it back to the fit-to-screen src. |
| 1586 |
*/ |
| 1587 |
if ( ! image.hasAttribute( 'data-zoom-loaded' ) ) { |
| 1588 |
// Cached by this point, so swapping it in is effectively instant. |
| 1589 |
image.src = attrs.src; |
| 1590 |
} |
| 1591 |
image.style.filter = ''; |
| 1592 |
}, |
| 1593 |
{ once: true } |
| 1594 |
); |
| 1595 |
|
| 1596 |
fullImage.addEventListener( |
| 1597 |
'error', |
| 1598 |
function () { |
| 1599 |
image.style.filter = ''; |
| 1600 |
}, |
| 1601 |
{ once: true } |
| 1602 |
); |
| 1603 |
|
| 1604 |
fullImage.src = attrs.src; |
| 1605 |
} |
| 1606 |
|
| 1607 |
/** |
| 1608 |
* Swap in a higher-resolution rendition now that the visitor is zoomed in. |
| 1609 |
* |
| 1610 |
* The zoomed-out slide only ever loads what the screen can actually show. The browser |
| 1611 |
* keeps painting the image it already has until this one decodes, so the picture |
| 1612 |
* sharpens rather than blanking. |
| 1613 |
* @param {object} slide - The slide being zoomed. |
| 1614 |
*/ |
| 1615 |
function loadZoomImage( slide ) { |
| 1616 |
if ( ! slide || ! slide.attrs.zoomSrc || slide.attrs.zoomSrc === slide.attrs.src ) { |
| 1617 |
return; |
| 1618 |
} |
| 1619 |
|
| 1620 |
var image = slide.el.querySelector( 'img' ); |
| 1621 |
if ( ! image || image.hasAttribute( 'data-zoom-loaded' ) ) { |
| 1622 |
return; |
| 1623 |
} |
| 1624 |
|
| 1625 |
image.setAttribute( 'data-zoom-loaded', 1 ); |
| 1626 |
image.src = slide.attrs.zoomSrc; |
| 1627 |
} |
| 1628 |
|
| 1629 |
function preloadAdjacentImages( currentIndex ) { |
| 1630 |
var indicesToPreload = []; |
| 1631 |
var totalSlides = carousel.slides.length; |
| 1632 |
|
| 1633 |
// Only preload adjacent images if we have more than one slide (matching loop condition) |
| 1634 |
if ( totalSlides > 1 ) { |
| 1635 |
// Previous image (with loop handling) |
| 1636 |
var prevIndex = currentIndex > 0 ? currentIndex - 1 : totalSlides - 1; |
| 1637 |
indicesToPreload.push( prevIndex ); |
| 1638 |
|
| 1639 |
// Next image (with loop handling) |
| 1640 |
var nextIndex = currentIndex < totalSlides - 1 ? currentIndex + 1 : 0; |
| 1641 |
indicesToPreload.push( nextIndex ); |
| 1642 |
} |
| 1643 |
|
| 1644 |
indicesToPreload.forEach( function ( index ) { |
| 1645 |
var slide = carousel.slides[ index ]; |
| 1646 |
if ( slide ) { |
| 1647 |
// Load in background without showing |
| 1648 |
loadFullImage( slide ); |
| 1649 |
|
| 1650 |
// Also load background image if enabled |
| 1651 |
if ( |
| 1652 |
Number( jetpackCarouselStrings.display_background_image ) === 1 && |
| 1653 |
! slide.backgroundImage |
| 1654 |
) { |
| 1655 |
loadBackgroundImage( slide ); |
| 1656 |
} |
| 1657 |
} |
| 1658 |
} ); |
| 1659 |
} |
| 1660 |
|
| 1661 |
function loadBackgroundImage( slide ) { |
| 1662 |
var image = slide.attrs.originalElement; |
| 1663 |
|
| 1664 |
if ( ! image ) { |
| 1665 |
return; |
| 1666 |
} |
| 1667 |
|
| 1668 |
if ( image.complete && image.naturalHeight !== 0 ) { |
| 1669 |
applyBackgroundImage( slide, image ); |
| 1670 |
return; |
| 1671 |
} |
| 1672 |
|
| 1673 |
// The thumbnail in the post may still be loading, or may be lazy-loaded. |
| 1674 |
// Use an event listener rather than `onload`, which would overwrite any |
| 1675 |
// handler the page has already attached to its own image. Pair the load |
| 1676 |
// handler with an error handler so a thumbnail that never loads doesn't |
| 1677 |
// leave a listener (and its reference to the slide) attached for good. |
| 1678 |
var onLoad = function () { |
| 1679 |
image.removeEventListener( 'error', onError ); |
| 1680 |
applyBackgroundImage( slide, image ); |
| 1681 |
}; |
| 1682 |
var onError = function () { |
| 1683 |
image.removeEventListener( 'load', onLoad ); |
| 1684 |
}; |
| 1685 |
image.addEventListener( 'load', onLoad, { once: true } ); |
| 1686 |
image.addEventListener( 'error', onError, { once: true } ); |
| 1687 |
} |
| 1688 |
|
| 1689 |
function applyBackgroundImage( slide, image ) { |
| 1690 |
var url = util.getBackgroundImage( image ); |
| 1691 |
|
| 1692 |
if ( ! url ) { |
| 1693 |
return; |
| 1694 |
} |
| 1695 |
|
| 1696 |
// Always paint onto the slide the image belongs to. Preloading runs this |
| 1697 |
// for the neighbouring slides too, so painting onto whichever slide happens |
| 1698 |
// to be active would put the wrong image behind it and leave the slide it |
| 1699 |
// was meant for with no placeholder at all. |
| 1700 |
slide.backgroundImage = url; |
| 1701 |
slide.el.style.backgroundImage = 'url(' + url + ')'; |
| 1702 |
slide.el.style.backgroundSize = 'cover'; |
| 1703 |
slide.el.style.backgroundPosition = 'center'; |
| 1704 |
} |
| 1705 |
|
| 1706 |
function clearCommentTextAreaValue() { |
| 1707 |
if ( carousel.commentField ) { |
| 1708 |
carousel.commentField.value = ''; |
| 1709 |
} |
| 1710 |
} |
| 1711 |
|
| 1712 |
function getOriginalDimensions( el ) { |
| 1713 |
var size = el.getAttribute( 'data-orig-size' ) || ''; |
| 1714 |
|
| 1715 |
if ( size ) { |
| 1716 |
var parts = size.split( ',' ); |
| 1717 |
return { width: parseInt( parts[ 0 ], 10 ), height: parseInt( parts[ 1 ], 10 ) }; |
| 1718 |
} |
| 1719 |
return { |
| 1720 |
width: el.getAttribute( 'data-original-width' ) || el.getAttribute( 'width' ) || undefined, |
| 1721 |
height: |
| 1722 |
el.getAttribute( 'data-original-height' ) || el.getAttribute( 'height' ) || undefined, |
| 1723 |
}; |
| 1724 |
} |
| 1725 |
|
| 1726 |
function initCarouselSlides( items, startIndex ) { |
| 1727 |
carousel.slides = []; |
| 1728 |
|
| 1729 |
var max = calculateMaxSlideDimensions(); |
| 1730 |
|
| 1731 |
// If the startIndex is not 0 then preload the clicked image first. |
| 1732 |
if ( startIndex !== 0 && items[ startIndex ].getAttribute( 'data-gallery-src' ) !== null ) { |
| 1733 |
var img = new Image(); |
| 1734 |
img.src = items[ startIndex ].getAttribute( 'data-gallery-src' ); |
| 1735 |
} |
| 1736 |
|
| 1737 |
// create the 'slide' |
| 1738 |
Array.prototype.forEach.call( items, function ( item, i ) { |
| 1739 |
var permalinkEl = domUtil.closest( item, 'a' ); |
| 1740 |
var origFile = item.getAttribute( 'data-orig-file' ) || item.getAttribute( 'src-orig' ); |
| 1741 |
var attrID = |
| 1742 |
item.getAttribute( 'data-attachment-id' ) || item.getAttribute( 'data-id' ) || '0'; |
| 1743 |
var caption = document.querySelector( |
| 1744 |
'img[data-attachment-id="' + attrID + '"] + figcaption' |
| 1745 |
); |
| 1746 |
|
| 1747 |
if ( caption ) { |
| 1748 |
caption = caption.innerHTML; |
| 1749 |
} else { |
| 1750 |
caption = item.getAttribute( 'data-image-caption' ); |
| 1751 |
} |
| 1752 |
|
| 1753 |
var attrs = { |
| 1754 |
originalElement: item, |
| 1755 |
attachmentId: attrID, |
| 1756 |
commentsOpened: item.getAttribute( 'data-comments-opened' ) || '0', |
| 1757 |
commentsCount: item.getAttribute( 'data-comments-count' ) || '0', |
| 1758 |
imageMeta: domUtil.getJSONAttribute( item, 'data-image-meta' ) || {}, |
| 1759 |
title: item.getAttribute( 'data-image-title' ) || '', |
| 1760 |
desc: item.getAttribute( 'data-image-description' ) || '', |
| 1761 |
largeFile: item.getAttribute( 'data-large-file' ) || '', |
| 1762 |
origFile: origFile || '', |
| 1763 |
thumbSize: { width: item.naturalWidth, height: item.naturalHeight }, |
| 1764 |
caption: caption || '', |
| 1765 |
permalink: permalinkEl && permalinkEl.getAttribute( 'href' ), |
| 1766 |
src: origFile || item.getAttribute( 'src' ) || '', |
| 1767 |
}; |
| 1768 |
|
| 1769 |
var tiledGalleryItem = domUtil.closest( item, '.tiled-gallery-item' ); |
| 1770 |
var tiledCaptionEl = |
| 1771 |
tiledGalleryItem && tiledGalleryItem.querySelector( '.tiled-gallery-caption' ); |
| 1772 |
var tiledCaption = tiledCaptionEl && tiledCaptionEl.innerHTML; |
| 1773 |
if ( tiledCaption ) { |
| 1774 |
attrs.caption = tiledCaption; |
| 1775 |
} |
| 1776 |
|
| 1777 |
var origDimensions = getOriginalDimensions( item ); |
| 1778 |
|
| 1779 |
attrs.origWidth = origDimensions.width || attrs.thumbSize.width; |
| 1780 |
attrs.origHeight = origDimensions.height || attrs.thumbSize.height; |
| 1781 |
|
| 1782 |
if ( typeof wpcom !== 'undefined' && wpcom.carousel && wpcom.carousel.generateImgSrc ) { |
| 1783 |
attrs.src = wpcom.carousel.generateImgSrc( item, max ); |
| 1784 |
} else { |
| 1785 |
var urlArgs = function ( zoomHeadroom ) { |
| 1786 |
// A fresh object each time: selectBestImageUrl() mutates what it is given. |
| 1787 |
return { |
| 1788 |
origFile: attrs.src, |
| 1789 |
origWidth: attrs.origWidth, |
| 1790 |
origHeight: attrs.origHeight, |
| 1791 |
maxWidth: max.width, |
| 1792 |
maxHeight: max.height, |
| 1793 |
largeFile: attrs.largeFile, |
| 1794 |
zoomHeadroom: zoomHeadroom, |
| 1795 |
}; |
| 1796 |
}; |
| 1797 |
|
| 1798 |
/* |
| 1799 |
The zoom rendition is kept aside until the visitor actually zooms. On sources |
| 1800 |
that cannot serve a larger one it comes back identical to `src`, and nothing |
| 1801 |
ever happens. |
| 1802 |
*/ |
| 1803 |
attrs.zoomSrc = selectBestImageUrl( urlArgs( 2 ) ); |
| 1804 |
attrs.src = selectBestImageUrl( urlArgs( 1 ) ); |
| 1805 |
} |
| 1806 |
|
| 1807 |
// Set the final src. |
| 1808 |
item.setAttribute( 'data-gallery-src', attrs.src ); |
| 1809 |
|
| 1810 |
if ( attrs.attachmentId !== '0' ) { |
| 1811 |
attrs.title = util.texturize( attrs.title ); |
| 1812 |
attrs.desc = util.texturize( attrs.desc ); |
| 1813 |
attrs.caption = util.texturize( attrs.caption ); |
| 1814 |
|
| 1815 |
// Initially, the image is a 1x1 transparent gif. |
| 1816 |
// The preview is shown as a background image on the slide itself. |
| 1817 |
var image = new Image(); |
| 1818 |
|
| 1819 |
var slideEl = document.createElement( 'div' ); |
| 1820 |
slideEl.classList.add( 'swiper-slide' ); |
| 1821 |
slideEl.setAttribute( 'itemprop', 'associatedMedia' ); |
| 1822 |
slideEl.setAttribute( 'itemscope', '' ); |
| 1823 |
slideEl.setAttribute( 'itemtype', 'https://schema.org/ImageObject' ); |
| 1824 |
var zoomEl = document.createElement( 'div' ); |
| 1825 |
zoomEl.classList.add( 'swiper-zoom-container' ); |
| 1826 |
|
| 1827 |
carousel.gallery.appendChild( slideEl ); |
| 1828 |
|
| 1829 |
slideEl.appendChild( zoomEl ); |
| 1830 |
zoomEl.appendChild( image ); |
| 1831 |
slideEl.setAttribute( 'data-attachment-id', attrs.attachmentId ); |
| 1832 |
slideEl.setAttribute( 'data-permalink', attrs.permalink ); |
| 1833 |
slideEl.setAttribute( 'data-orig-file', attrs.origFile ); |
| 1834 |
|
| 1835 |
// Reuse the thumbnail the browser has already decoded for this image |
| 1836 |
// in the post. It costs nothing to display and gives the slide |
| 1837 |
// something to show while the full-size image is downloading. |
| 1838 |
attrs.previewImage = item.currentSrc || item.getAttribute( 'src' ) || ''; |
| 1839 |
|
| 1840 |
var slide = { el: slideEl, attrs: attrs, index: i }; |
| 1841 |
carousel.slides.push( slide ); |
| 1842 |
} |
| 1843 |
} ); |
| 1844 |
} |
| 1845 |
|
| 1846 |
function loadSwiper( gallery, options ) { |
| 1847 |
if ( ! window.JetpackSwiper ) { |
| 1848 |
var loader = document.querySelector( '#jp-carousel-loading-overlay' ); |
| 1849 |
domUtil.show( loader ); |
| 1850 |
var jsScript = document.createElement( 'script' ); |
| 1851 |
jsScript.id = 'jetpack-carousel-swiper-js'; |
| 1852 |
jsScript.src = window.jetpackSwiperLibraryPath.url; |
| 1853 |
jsScript.async = true; |
| 1854 |
jsScript.onload = function () { |
| 1855 |
domUtil.hide( loader ); |
| 1856 |
openCarousel( gallery, options ); |
| 1857 |
}; |
| 1858 |
jsScript.onerror = function () { |
| 1859 |
domUtil.hide( loader ); |
| 1860 |
}; |
| 1861 |
document.head.appendChild( jsScript ); |
| 1862 |
return; |
| 1863 |
} |
| 1864 |
openCarousel( gallery, options ); |
| 1865 |
} |
| 1866 |
|
| 1867 |
function openCarousel( gallery, options ) { |
| 1868 |
var settings = { |
| 1869 |
imgSelector: |
| 1870 |
'.gallery-item [data-attachment-id], .tiled-gallery-item [data-attachment-id], img[data-attachment-id], img[data-id]', |
| 1871 |
startIndex: 0, |
| 1872 |
}; |
| 1873 |
|
| 1874 |
var data = domUtil.getJSONAttribute( gallery, 'data-carousel-extra' ); |
| 1875 |
var tapTimeout; |
| 1876 |
|
| 1877 |
if ( ! data ) { |
| 1878 |
return; // don't run if the default gallery functions weren't used |
| 1879 |
} |
| 1880 |
|
| 1881 |
const images = gallery.querySelectorAll( settings.imgSelector ); |
| 1882 |
if ( ! images.length ) { |
| 1883 |
return; // don't run if we found no images in the gallery (somehow it has images that aren't in the media library?) |
| 1884 |
} |
| 1885 |
|
| 1886 |
initializeCarousel(); |
| 1887 |
|
| 1888 |
if ( carousel.isOpen ) { |
| 1889 |
return; // don't open if already opened |
| 1890 |
} |
| 1891 |
carousel.isOpen = true; |
| 1892 |
|
| 1893 |
// make sure to stop the page from scrolling behind the carousel overlay, so we don't trigger |
| 1894 |
// infiniscroll for it when enabled (Reader, theme infiniscroll, etc). |
| 1895 |
originalOverflow = getComputedStyle( document.body ).overflow; |
| 1896 |
document.body.style.overflow = 'hidden'; |
| 1897 |
// prevent html from overflowing on some of the new themes. |
| 1898 |
originalHOverflow = getComputedStyle( document.documentElement ).overflow; |
| 1899 |
document.documentElement.style.overflow = 'hidden'; |
| 1900 |
scrollPos = window.scrollY || window.pageYOffset || 0; |
| 1901 |
|
| 1902 |
carousel.container.setAttribute( 'data-carousel-extra', JSON.stringify( data ) ); |
| 1903 |
stat( [ 'open', 'view_image' ] ); |
| 1904 |
|
| 1905 |
// If options exist, lets merge them |
| 1906 |
// with our default settings |
| 1907 |
for ( var option in options || {} ) { |
| 1908 |
settings[ option ] = options[ option ]; |
| 1909 |
} |
| 1910 |
|
| 1911 |
if ( settings.startIndex === -1 ) { |
| 1912 |
settings.startIndex = 0; // -1 returned if can't find index, so start from beginning |
| 1913 |
} |
| 1914 |
|
| 1915 |
domUtil.emitEvent( carousel.overlay, 'jp_carousel.beforeOpen' ); |
| 1916 |
carousel.gallery.innerHTML = ''; |
| 1917 |
commentsCache = {}; |
| 1918 |
commentsFetching = {}; |
| 1919 |
|
| 1920 |
// Need to set the overlay manually to block or swiper does't initialise properly. |
| 1921 |
carousel.overlay.style.opacity = 1; |
| 1922 |
carousel.overlay.style.display = 'block'; |
| 1923 |
|
| 1924 |
initCarouselSlides( images, settings.startIndex ); |
| 1925 |
|
| 1926 |
swiper = new window.JetpackSwiper( '.jp-carousel-swiper-container', { |
| 1927 |
centeredSlides: true, |
| 1928 |
/* |
| 1929 |
Swiper's 300ms default is most of what makes slide-to-slide feel slow. Keep a |
| 1930 |
visible movement -- the slide is a real affordance on touch -- but a shorter one. |
| 1931 |
*/ |
| 1932 |
speed: domUtil.prefersReducedMotion() ? 0 : 250, |
| 1933 |
zoom: true, |
| 1934 |
loop: carousel.slides.length > 1, |
| 1935 |
// Turn off interactions and hide navigation arrows if there is only one slide. |
| 1936 |
enabled: carousel.slides.length > 1, |
| 1937 |
pagination: { |
| 1938 |
el: '.jp-swiper-pagination', |
| 1939 |
clickable: true, |
| 1940 |
}, |
| 1941 |
navigation: { |
| 1942 |
nextEl: '.jp-swiper-button-next', |
| 1943 |
prevEl: '.jp-swiper-button-prev', |
| 1944 |
}, |
| 1945 |
initialSlide: settings.startIndex, |
| 1946 |
on: { |
| 1947 |
init: function () { |
| 1948 |
selectSlideAtIndex( settings.startIndex ); |
| 1949 |
}, |
| 1950 |
}, |
| 1951 |
preventClicks: false, |
| 1952 |
preventClicksPropagation: false, |
| 1953 |
preventInteractionOnTransition: ! domUtil.isTouch(), |
| 1954 |
threshold: 5, |
| 1955 |
} ); |
| 1956 |
|
| 1957 |
swiper.on( 'slideChange', function ( swiper ) { |
| 1958 |
if ( ! carousel.isOpen ) { |
| 1959 |
return; |
| 1960 |
} |
| 1961 |
selectSlideAtIndex( swiper.realIndex ); |
| 1962 |
carousel.overlay.classList.remove( 'jp-carousel-hide-controls' ); |
| 1963 |
} ); |
| 1964 |
|
| 1965 |
swiper.on( 'zoomChange', function ( swiper, scale ) { |
| 1966 |
if ( scale > 1 ) { |
| 1967 |
loadZoomImage( carousel.currentSlide ); |
| 1968 |
carousel.overlay.classList.add( 'jp-carousel-hide-controls' ); |
| 1969 |
} |
| 1970 |
|
| 1971 |
if ( scale === 1 ) { |
| 1972 |
carousel.overlay.classList.remove( 'jp-carousel-hide-controls' ); |
| 1973 |
} |
| 1974 |
} ); |
| 1975 |
|
| 1976 |
swiper.on( 'doubleTap', function ( swiper ) { |
| 1977 |
clearTimeout( tapTimeout ); |
| 1978 |
if ( swiper.zoom.scale === 1 ) { |
| 1979 |
var zoomTimeout = setTimeout( function () { |
| 1980 |
carousel.overlay.classList.remove( 'jp-carousel-hide-controls' ); |
| 1981 |
clearTimeout( zoomTimeout ); |
| 1982 |
}, 150 ); |
| 1983 |
} |
| 1984 |
} ); |
| 1985 |
|
| 1986 |
swiper.on( 'tap', function () { |
| 1987 |
if ( swiper.zoom.scale > 1 ) { |
| 1988 |
tapTimeout = setTimeout( function () { |
| 1989 |
carousel.overlay.classList.toggle( 'jp-carousel-hide-controls' ); |
| 1990 |
}, 150 ); |
| 1991 |
} |
| 1992 |
} ); |
| 1993 |
|
| 1994 |
domUtil.fadeIn( carousel.overlay, function () { |
| 1995 |
domUtil.emitEvent( carousel.overlay, 'jp_carousel.afterOpen' ); |
| 1996 |
} ); |
| 1997 |
} |
| 1998 |
|
| 1999 |
// Register the event listeners for starting the gallery |
| 2000 |
document.body.addEventListener( 'click', handleInteraction ); |
| 2001 |
document.body.addEventListener( 'keydown', handleInteraction ); |
| 2002 |
document.querySelectorAll( galleryItemSelector + 'img' ).forEach( function ( galleryImage ) { |
| 2003 |
if ( shouldOpenModal( galleryImage ) ) { |
| 2004 |
makeGalleryImageAccessible( galleryImage ); |
| 2005 |
} |
| 2006 |
} ); |
| 2007 |
|
| 2008 |
function handleInteraction( e ) { |
| 2009 |
if ( e.type === 'click' ) { |
| 2010 |
handleClick( e ); |
| 2011 |
return; |
| 2012 |
} |
| 2013 |
|
| 2014 |
if ( e.type === 'keydown' ) { |
| 2015 |
const parentElement = document.activeElement.parentElement; |
| 2016 |
const isParentCarouselContainer = |
| 2017 |
parentElement && parentElement.classList.contains( 'tiled-gallery__item' ); |
| 2018 |
|
| 2019 |
if ( ( e.key === ' ' || e.key === 'Enter' ) && isParentCarouselContainer ) { |
| 2020 |
handleClick( e ); |
| 2021 |
} |
| 2022 |
} |
| 2023 |
} |
| 2024 |
|
| 2025 |
function normalizeUrl( url ) { |
| 2026 |
return ( url || '' ).split( '?' )[ 0 ].replace( /\/$/, '' ); |
| 2027 |
} |
| 2028 |
|
| 2029 |
function shouldOpenModal( el ) { |
| 2030 |
if ( el.tagName === 'A' ) { |
| 2031 |
el = el.querySelector( 'img' ) || el; |
| 2032 |
} |
| 2033 |
|
| 2034 |
var parent = el.parentElement; |
| 2035 |
var grandparent = parent ? parent.parentElement : null; |
| 2036 |
|
| 2037 |
// If Gallery is made up of individual Image blocks check for custom link before |
| 2038 |
// loading carousel. The custom link may be the parent or could be a descendant |
| 2039 |
// of the parent if the image has rounded corners. |
| 2040 |
var parentHref = null; |
| 2041 |
if ( grandparent && grandparent.classList.contains( 'wp-block-image' ) ) { |
| 2042 |
parentHref = parent.getAttribute( 'href' ); |
| 2043 |
} else if ( |
| 2044 |
parent && |
| 2045 |
parent.classList.contains( 'wp-block-image' ) && |
| 2046 |
parent.querySelector( ':scope > a' ) |
| 2047 |
) { |
| 2048 |
parentHref = parent.querySelector( ':scope > a' ).getAttribute( 'href' ); |
| 2049 |
} |
| 2050 |
|
| 2051 |
// If the link does not point to the attachment or media file then assume Image has |
| 2052 |
// a custom link so don't load the carousel. |
| 2053 |
if ( parentHref ) { |
| 2054 |
var cleanHref = normalizeUrl( parentHref ); |
| 2055 |
var cleanOrig = normalizeUrl( el.getAttribute( 'data-orig-file' ) ); |
| 2056 |
var cleanPerm = normalizeUrl( el.getAttribute( 'data-permalink' ) ); |
| 2057 |
|
| 2058 |
if ( cleanHref !== cleanOrig && cleanHref !== cleanPerm ) { |
| 2059 |
return false; |
| 2060 |
} |
| 2061 |
} |
| 2062 |
|
| 2063 |
// Do not open the modal if we are looking at a gallery caption from before WP5, which may contain a link. |
| 2064 |
if ( parent && parent.classList.contains( 'gallery-caption' ) ) { |
| 2065 |
return false; |
| 2066 |
} |
| 2067 |
|
| 2068 |
// Do not open the modal if we are looking at a caption of a gallery block, which may contain a link. |
| 2069 |
if ( domUtil.matches( parent, 'figcaption' ) ) { |
| 2070 |
return false; |
| 2071 |
} |
| 2072 |
|
| 2073 |
return true; |
| 2074 |
} |
| 2075 |
|
| 2076 |
function handleClick( e ) { |
| 2077 |
var isCompatible = |
| 2078 |
window.CSS && window.CSS.supports && window.CSS.supports( 'display', 'grid' ); |
| 2079 |
|
| 2080 |
// IE11 support is being dropped in August 2021. The new swiper.js libray is not IE11 compat |
| 2081 |
// so just default to opening individual image attachment/media pages for IE. |
| 2082 |
if ( ! isCompatible ) { |
| 2083 |
return; |
| 2084 |
} |
| 2085 |
|
| 2086 |
var target = e.target; |
| 2087 |
var gallery = domUtil.closest( target, gallerySelector ); |
| 2088 |
|
| 2089 |
if ( gallery ) { |
| 2090 |
if ( ! testForData( gallery ) ) { |
| 2091 |
return; |
| 2092 |
} |
| 2093 |
|
| 2094 |
if ( ! shouldOpenModal( target ) ) { |
| 2095 |
return; |
| 2096 |
} |
| 2097 |
|
| 2098 |
// Set height to auto. |
| 2099 |
// Fix some themes where closing carousel brings view back to top. |
| 2100 |
document.documentElement.style.height = 'auto'; |
| 2101 |
|
| 2102 |
e.preventDefault(); |
| 2103 |
|
| 2104 |
// Stopping propagation in case there are parent elements |
| 2105 |
// with .gallery or .tiled-gallery class |
| 2106 |
e.stopPropagation(); |
| 2107 |
|
| 2108 |
var item = domUtil.closest( target, itemSelector ); |
| 2109 |
var index = Array.prototype.indexOf.call( gallery.querySelectorAll( itemSelector ), item ); |
| 2110 |
loadSwiper( gallery, { startIndex: index } ); |
| 2111 |
} |
| 2112 |
} |
| 2113 |
|
| 2114 |
// Handle lightbox (single image gallery) for images linking to 'Attachment Page'. |
| 2115 |
if ( Number( jetpackCarouselStrings.single_image_gallery ) === 1 ) { |
| 2116 |
processSingleImageGallery(); |
| 2117 |
document.body.addEventListener( 'is.post-load', function () { |
| 2118 |
processSingleImageGallery(); |
| 2119 |
} ); |
| 2120 |
} |
| 2121 |
|
| 2122 |
// Makes carousel work on page load and when back button leads to same URL with carousel hash |
| 2123 |
// (i.e. no actual document.ready trigger). |
| 2124 |
window.addEventListener( 'hashchange', function () { |
| 2125 |
var hashRegExp = /jp-carousel-(\d+)/; |
| 2126 |
|
| 2127 |
if ( ! window.location.hash || ! hashRegExp.test( window.location.hash ) ) { |
| 2128 |
if ( carousel.isOpen ) { |
| 2129 |
closeCarousel(); |
| 2130 |
} |
| 2131 |
|
| 2132 |
return; |
| 2133 |
} |
| 2134 |
|
| 2135 |
if ( window.location.hash === lastKnownLocationHash && carousel.isOpen ) { |
| 2136 |
return; |
| 2137 |
} |
| 2138 |
|
| 2139 |
if ( window.location.hash && carousel.gallery && ! carousel.isOpen && history.back ) { |
| 2140 |
history.back(); |
| 2141 |
return; |
| 2142 |
} |
| 2143 |
|
| 2144 |
lastKnownLocationHash = window.location.hash; |
| 2145 |
var matchList = window.location.hash.match( hashRegExp ); |
| 2146 |
var attachmentId = parseInt( matchList[ 1 ], 10 ); |
| 2147 |
var galleries = document.querySelectorAll( gallerySelector ); |
| 2148 |
|
| 2149 |
// Find the first thumbnail that matches the attachment ID in the location |
| 2150 |
// hash, then open the gallery that contains it. |
| 2151 |
for ( var i = 0; i < galleries.length; i++ ) { |
| 2152 |
var gallery = galleries[ i ]; |
| 2153 |
var selected; |
| 2154 |
|
| 2155 |
var images = gallery.querySelectorAll( 'img' ); |
| 2156 |
for ( var j = 0; j < images.length; j++ ) { |
| 2157 |
if ( |
| 2158 |
parseInt( images[ j ].getAttribute( 'data-attachment-id' ), 10 ) === attachmentId || |
| 2159 |
parseInt( images[ j ].getAttribute( 'data-id' ), 10 ) === attachmentId |
| 2160 |
) { |
| 2161 |
selected = j; |
| 2162 |
break; |
| 2163 |
} |
| 2164 |
} |
| 2165 |
|
| 2166 |
if ( selected !== undefined ) { |
| 2167 |
openOrSelectSlide( gallery, selected ); |
| 2168 |
break; |
| 2169 |
} |
| 2170 |
} |
| 2171 |
} ); |
| 2172 |
|
| 2173 |
if ( window.location.hash ) { |
| 2174 |
domUtil.emitEvent( window, 'hashchange' ); |
| 2175 |
} |
| 2176 |
} |
| 2177 |
|
| 2178 |
if ( document.readyState !== 'loading' ) { |
| 2179 |
init(); |
| 2180 |
} else { |
| 2181 |
document.addEventListener( 'DOMContentLoaded', init ); |
| 2182 |
} |
| 2183 |
} )(); |
| 2184 |
|
