jetpack-carousel-rtl.css
1 day ago
jetpack-carousel.css
1 day ago
jetpack-carousel.js
1 day ago
jetpack-carousel.php
1 day ago
jetpack-carousel.js
1912 lines
| 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 | |
| 94 | 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 | function fade( el, start, end, callback ) { |
| 112 | if ( ! el ) { |
| 113 | return callback(); |
| 114 | } |
| 115 | |
| 116 | // Prepare for transition. |
| 117 | // Ensure the item is in the render tree, in its initial state. |
| 118 | el.style.removeProperty( 'display' ); |
| 119 | el.style.opacity = start; |
| 120 | el.style.pointerEvents = 'none'; |
| 121 | |
| 122 | var animate = function ( t0, duration ) { |
| 123 | var t = performance.now(); |
| 124 | var diff = t - t0; |
| 125 | var ratio = diff / duration; |
| 126 | |
| 127 | if ( ratio < 1 ) { |
| 128 | el.style.opacity = start + ( end - start ) * ratio; |
| 129 | requestAnimationFrame( () => animate( t0, duration ) ); |
| 130 | } else { |
| 131 | el.style.opacity = end; |
| 132 | el.style.removeProperty( 'pointer-events' ); |
| 133 | callback(); |
| 134 | } |
| 135 | }; |
| 136 | |
| 137 | requestAnimationFrame( function () { |
| 138 | // Double rAF for browser compatibility. |
| 139 | requestAnimationFrame( function () { |
| 140 | animate( performance.now(), 200 ); |
| 141 | } ); |
| 142 | } ); |
| 143 | } |
| 144 | |
| 145 | function fadeIn( el, callback ) { |
| 146 | callback = callback || util.noop; |
| 147 | fade( el, 0, 1, callback ); |
| 148 | } |
| 149 | |
| 150 | function fadeOut( el, callback ) { |
| 151 | callback = callback || util.noop; |
| 152 | fade( el, 1, 0, function () { |
| 153 | if ( el ) { |
| 154 | el.style.display = 'none'; |
| 155 | } |
| 156 | callback(); |
| 157 | } ); |
| 158 | } |
| 159 | |
| 160 | function emitEvent( el, type, detail ) { |
| 161 | var e; |
| 162 | try { |
| 163 | e = new CustomEvent( type, { |
| 164 | bubbles: true, |
| 165 | cancelable: true, |
| 166 | detail: detail || null, |
| 167 | } ); |
| 168 | } catch { |
| 169 | e = document.createEvent( 'CustomEvent' ); |
| 170 | e.initCustomEvent( type, true, true, detail || null ); |
| 171 | } |
| 172 | el.dispatchEvent( e ); |
| 173 | } |
| 174 | |
| 175 | // From: https://easings.net/#easeInOutQuad |
| 176 | function easeInOutQuad( num ) { |
| 177 | return num < 0.5 ? 2 * num * num : 1 - Math.pow( -2 * num + 2, 2 ) / 2; |
| 178 | } |
| 179 | |
| 180 | function getFooterClearance( container ) { |
| 181 | var footer = container.querySelector( '.jp-carousel-info-footer' ); |
| 182 | var infoArea = container.querySelector( '.jp-carousel-info-extra' ); |
| 183 | var contentArea = container.querySelector( '.jp-carousel-info-content-wrapper' ); |
| 184 | |
| 185 | if ( footer && infoArea && contentArea ) { |
| 186 | var styles = window.getComputedStyle( infoArea ); |
| 187 | var padding = parseInt( styles.paddingTop, 10 ) + parseInt( styles.paddingBottom, 10 ); |
| 188 | padding = isNaN( padding ) ? 0 : padding; |
| 189 | return contentArea.offsetHeight + footer.offsetHeight + padding; |
| 190 | } |
| 191 | return 0; |
| 192 | } |
| 193 | |
| 194 | function isTouch() { |
| 195 | return ( |
| 196 | 'ontouchstart' in window || ( window.DocumentTouch && document instanceof DocumentTouch ) |
| 197 | ); |
| 198 | } |
| 199 | |
| 200 | function scrollToElement( el, container, callback ) { |
| 201 | if ( ! el || ! container ) { |
| 202 | if ( callback ) { |
| 203 | return callback(); |
| 204 | } |
| 205 | return; |
| 206 | } |
| 207 | |
| 208 | // For iOS Safari compatibility, use JS to set the minimum height. |
| 209 | var infoArea = container.querySelector( '.jp-carousel-info-extra' ); |
| 210 | if ( infoArea ) { |
| 211 | // 64px is the same height as `.jp-carousel-info-footer` in the CSS. |
| 212 | infoArea.style.minHeight = window.innerHeight - 64 + 'px'; |
| 213 | } |
| 214 | |
| 215 | var isScrolling = true; |
| 216 | var startTime = Date.now(); |
| 217 | var duration = 300; |
| 218 | var originalPosition = container.scrollTop; |
| 219 | var targetPosition = Math.max( |
| 220 | 0, |
| 221 | el.offsetTop - Math.max( 0, window.innerHeight - getFooterClearance( container ) ) |
| 222 | ); |
| 223 | var distance = targetPosition - container.scrollTop; |
| 224 | distance = Math.min( distance, container.scrollHeight - window.innerHeight ); |
| 225 | |
| 226 | function stopScroll() { |
| 227 | isScrolling = false; |
| 228 | } |
| 229 | |
| 230 | function runScroll() { |
| 231 | var now = Date.now(); |
| 232 | var progress = easeInOutQuad( ( now - startTime ) / duration ); |
| 233 | |
| 234 | progress = progress > 1 ? 1 : progress; |
| 235 | var newVal = progress * distance; |
| 236 | container.scrollTop = originalPosition + newVal; |
| 237 | |
| 238 | if ( now <= startTime + duration && isScrolling ) { |
| 239 | return requestAnimationFrame( runScroll ); |
| 240 | } |
| 241 | if ( callback ) { |
| 242 | callback(); |
| 243 | } |
| 244 | if ( infoArea ) { |
| 245 | infoArea.style.minHeight = ''; |
| 246 | } |
| 247 | isScrolling = false; |
| 248 | container.removeEventListener( 'wheel', stopScroll ); |
| 249 | } |
| 250 | |
| 251 | // Allow scroll to be cancelled by user interaction. |
| 252 | container.addEventListener( 'wheel', stopScroll ); |
| 253 | runScroll(); |
| 254 | } |
| 255 | |
| 256 | function getJSONAttribute( el, attr ) { |
| 257 | if ( ! el || ! el.hasAttribute( attr ) ) { |
| 258 | return undefined; |
| 259 | } |
| 260 | |
| 261 | try { |
| 262 | return JSON.parse( el.getAttribute( attr ) ); |
| 263 | } catch { |
| 264 | return undefined; |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | function convertToPlainText( html ) { |
| 269 | var dummy = document.createElement( 'div' ); |
| 270 | dummy.textContent = html; |
| 271 | return dummy.innerHTML; |
| 272 | } |
| 273 | |
| 274 | function stripHTML( text ) { |
| 275 | var tmp = document.createElement( 'div' ); |
| 276 | tmp.innerHTML = text.replace( /<[^>]*>?/gm, '' ); |
| 277 | return tmp.textContent; |
| 278 | } |
| 279 | |
| 280 | return { |
| 281 | closest: closest, |
| 282 | matches: matches, |
| 283 | hide: hide, |
| 284 | show: show, |
| 285 | fadeIn: fadeIn, |
| 286 | fadeOut: fadeOut, |
| 287 | scrollToElement: scrollToElement, |
| 288 | getJSONAttribute: getJSONAttribute, |
| 289 | convertToPlainText: convertToPlainText, |
| 290 | stripHTML: stripHTML, |
| 291 | emitEvent: emitEvent, |
| 292 | isTouch: isTouch, |
| 293 | }; |
| 294 | } )(); |
| 295 | |
| 296 | ///////////////////////////////////// |
| 297 | // Carousel implementation |
| 298 | ///////////////////////////////////// |
| 299 | function init() { |
| 300 | var commentInterval; |
| 301 | var screenPadding; |
| 302 | var originalOverflow; |
| 303 | var originalHOverflow; |
| 304 | var scrollPos; |
| 305 | |
| 306 | var lastKnownLocationHash = ''; |
| 307 | var isUserTyping = false; |
| 308 | |
| 309 | var gallerySelector = |
| 310 | 'div.gallery, div.tiled-gallery, ul.wp-block-gallery, ul.blocks-gallery-grid, ' + |
| 311 | 'figure.wp-block-gallery.has-nested-images, div.wp-block-jetpack-tiled-gallery, a.single-image-gallery'; |
| 312 | |
| 313 | // Selector for items within a gallery or tiled gallery. |
| 314 | var galleryItemSelector = |
| 315 | '.gallery-item, .tiled-gallery-item, .blocks-gallery-item, ' + ' .tiled-gallery__item'; |
| 316 | |
| 317 | // Selector for all items including single images. |
| 318 | var itemSelector = galleryItemSelector + ', .wp-block-image'; |
| 319 | |
| 320 | var carousel = {}; |
| 321 | |
| 322 | var stat = |
| 323 | typeof wpcom !== 'undefined' && wpcom.carousel && wpcom.carousel.stat |
| 324 | ? wpcom.carousel.stat |
| 325 | : util.noop; |
| 326 | |
| 327 | var pageview = |
| 328 | typeof wpcom !== 'undefined' && wpcom.carousel && wpcom.carousel.pageview |
| 329 | ? wpcom.carousel.pageview |
| 330 | : util.noop; |
| 331 | |
| 332 | function handleKeyboardEvent( e ) { |
| 333 | if ( ! isUserTyping ) { |
| 334 | switch ( e.which ) { |
| 335 | case 38: // up |
| 336 | e.preventDefault(); |
| 337 | carousel.overlay.scrollTop -= 100; |
| 338 | break; |
| 339 | case 40: // down |
| 340 | e.preventDefault(); |
| 341 | carousel.overlay.scrollTop += 100; |
| 342 | break; |
| 343 | case 39: // right |
| 344 | e.preventDefault(); |
| 345 | swiper.slideNext(); |
| 346 | break; |
| 347 | case 37: // left |
| 348 | case 8: // backspace |
| 349 | e.preventDefault(); |
| 350 | swiper.slidePrev(); |
| 351 | break; |
| 352 | case 27: // escape |
| 353 | e.preventDefault(); |
| 354 | closeCarousel(); |
| 355 | break; |
| 356 | default: |
| 357 | break; |
| 358 | } |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | function disableKeyboardNavigation() { |
| 363 | isUserTyping = true; |
| 364 | } |
| 365 | |
| 366 | function enableKeyboardNavigation() { |
| 367 | isUserTyping = false; |
| 368 | } |
| 369 | |
| 370 | function calculatePadding() { |
| 371 | var baseScreenPadding = 110; |
| 372 | screenPadding = baseScreenPadding; |
| 373 | |
| 374 | if ( window.innerWidth <= 760 ) { |
| 375 | screenPadding = Math.round( ( window.innerWidth / 760 ) * baseScreenPadding ); |
| 376 | |
| 377 | if ( screenPadding < 40 && domUtil.isTouch() ) { |
| 378 | screenPadding = 0; |
| 379 | } |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | function makeGalleryImageAccessible( img ) { |
| 384 | img.role = 'button'; |
| 385 | img.tabIndex = 0; |
| 386 | img.ariaLabel = jetpackCarouselStrings.image_label; |
| 387 | } |
| 388 | |
| 389 | function initializeCarousel() { |
| 390 | if ( ! carousel.overlay ) { |
| 391 | carousel.overlay = document.querySelector( '.jp-carousel-overlay' ); |
| 392 | carousel.container = carousel.overlay.querySelector( '.jp-carousel-wrap' ); |
| 393 | carousel.gallery = carousel.container.querySelector( '.jp-carousel' ); |
| 394 | carousel.info = carousel.overlay.querySelector( '.jp-carousel-info' ); |
| 395 | carousel.caption = carousel.info.querySelector( '.jp-carousel-caption' ); |
| 396 | carousel.commentField = carousel.overlay.querySelector( |
| 397 | '#jp-carousel-comment-form-comment-field' |
| 398 | ); |
| 399 | carousel.emailField = carousel.overlay.querySelector( |
| 400 | '#jp-carousel-comment-form-email-field' |
| 401 | ); |
| 402 | carousel.authorField = carousel.overlay.querySelector( |
| 403 | '#jp-carousel-comment-form-author-field' |
| 404 | ); |
| 405 | carousel.urlField = carousel.overlay.querySelector( '#jp-carousel-comment-form-url-field' ); |
| 406 | |
| 407 | calculatePadding(); |
| 408 | |
| 409 | [ |
| 410 | carousel.commentField, |
| 411 | carousel.emailField, |
| 412 | carousel.authorField, |
| 413 | carousel.urlField, |
| 414 | ].forEach( function ( field ) { |
| 415 | if ( field ) { |
| 416 | field.addEventListener( 'focus', disableKeyboardNavigation ); |
| 417 | field.addEventListener( 'blur', enableKeyboardNavigation ); |
| 418 | } |
| 419 | } ); |
| 420 | |
| 421 | carousel.overlay.addEventListener( 'click', function ( e ) { |
| 422 | var target = e.target; |
| 423 | var isTargetCloseHint = !! domUtil.closest( target, '.jp-carousel-close-hint' ); |
| 424 | var isSmallScreen = !! window.matchMedia( '(max-device-width: 760px)' ).matches; |
| 425 | if ( target === carousel.overlay ) { |
| 426 | if ( ! isSmallScreen ) { |
| 427 | closeCarousel(); |
| 428 | } |
| 429 | } else if ( isTargetCloseHint ) { |
| 430 | closeCarousel(); |
| 431 | } else if ( target.classList.contains( 'jp-carousel-image-download' ) ) { |
| 432 | stat( 'download_original_click' ); |
| 433 | } else if ( target.classList.contains( 'jp-carousel-comment-login' ) ) { |
| 434 | handleCommentLoginClick( e ); |
| 435 | } else if ( domUtil.closest( target, '#jp-carousel-comment-form-container' ) ) { |
| 436 | handleCommentFormClick( e ); |
| 437 | } else if ( |
| 438 | domUtil.closest( target, '.jp-carousel-photo-icons-container' ) || |
| 439 | target.classList.contains( 'jp-carousel-photo-title' ) |
| 440 | ) { |
| 441 | handleFooterElementClick( e ); |
| 442 | } |
| 443 | } ); |
| 444 | |
| 445 | window.addEventListener( 'keydown', handleKeyboardEvent ); |
| 446 | |
| 447 | carousel.overlay.addEventListener( 'jp_carousel.afterOpen', function () { |
| 448 | enableKeyboardNavigation(); |
| 449 | |
| 450 | // Don't show navigation if there's only one image. |
| 451 | if ( carousel.slides.length <= 1 ) { |
| 452 | return; |
| 453 | } |
| 454 | // Show dot pagination if slide count is <= 5, otherwise show n/total. |
| 455 | if ( carousel.slides.length <= 5 ) { |
| 456 | domUtil.show( carousel.info.querySelector( '.jp-swiper-pagination' ) ); |
| 457 | } else { |
| 458 | domUtil.show( carousel.info.querySelector( '.jp-carousel-pagination' ) ); |
| 459 | } |
| 460 | } ); |
| 461 | |
| 462 | carousel.overlay.addEventListener( 'jp_carousel.beforeClose', function () { |
| 463 | disableKeyboardNavigation(); |
| 464 | |
| 465 | // Fixes some themes where closing carousel brings view back to top. |
| 466 | document.documentElement.style.removeProperty( 'height' ); |
| 467 | |
| 468 | // If we disable the swiper (because there's only one image) |
| 469 | // we have to re-enable it here again as Swiper doesn't, for some reason, |
| 470 | // show the navigation buttons again after reinitialization. |
| 471 | if ( swiper ) { |
| 472 | swiper.enable(); |
| 473 | } |
| 474 | |
| 475 | // Hide pagination. |
| 476 | domUtil.hide( carousel.info.querySelector( '.jp-swiper-pagination' ) ); |
| 477 | domUtil.hide( carousel.info.querySelector( '.jp-carousel-pagination' ) ); |
| 478 | } ); |
| 479 | |
| 480 | carousel.overlay.addEventListener( 'jp_carousel.afterClose', function () { |
| 481 | // don't force the browser back when the carousel closes. |
| 482 | if ( window.history.pushState ) { |
| 483 | history.pushState( |
| 484 | '', |
| 485 | document.title, |
| 486 | window.location.pathname + window.location.search |
| 487 | ); |
| 488 | } else { |
| 489 | window.location.href = ''; |
| 490 | } |
| 491 | lastKnownLocationHash = ''; |
| 492 | carousel.isOpen = false; |
| 493 | } ); |
| 494 | |
| 495 | // Prevent native browser zooming |
| 496 | carousel.overlay.addEventListener( 'touchstart', function ( e ) { |
| 497 | if ( e.touches.length > 1 ) { |
| 498 | e.preventDefault(); |
| 499 | } |
| 500 | } ); |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | function handleCommentLoginClick() { |
| 505 | var slide = carousel.currentSlide; |
| 506 | var attachmentId = slide ? slide.attrs.attachmentId : '0'; |
| 507 | |
| 508 | window.location.href = jetpackCarouselStrings.login_url + '%23jp-carousel-' + attachmentId; |
| 509 | } |
| 510 | |
| 511 | function updatePostResults( msg, isSuccess ) { |
| 512 | var results = carousel.overlay.querySelector( '#jp-carousel-comment-post-results' ); |
| 513 | var elClass = 'jp-carousel-comment-post-' + ( isSuccess ? 'success' : 'error' ); |
| 514 | results.innerHTML = '<span class="' + elClass + '">' + msg + '</span>'; |
| 515 | domUtil.hide( carousel.overlay.querySelector( '#jp-carousel-comment-form-spinner' ) ); |
| 516 | carousel.overlay |
| 517 | .querySelector( '#jp-carousel-comment-form' ) |
| 518 | .classList.remove( 'jp-carousel-is-disabled' ); |
| 519 | domUtil.show( results ); |
| 520 | } |
| 521 | |
| 522 | function handleCommentFormClick( e ) { |
| 523 | var target = e.target; |
| 524 | var data = domUtil.getJSONAttribute( carousel.container, 'data-carousel-extra' ) || {}; |
| 525 | var attachmentId = carousel.currentSlide.attrs.attachmentId; |
| 526 | |
| 527 | var wrapper = document.querySelector( '#jp-carousel-comment-form-submit-and-info-wrapper' ); |
| 528 | var spinner = document.querySelector( '#jp-carousel-comment-form-spinner' ); |
| 529 | // eslint-disable-next-line @wordpress/no-unused-vars-before-return |
| 530 | var submit = document.querySelector( '#jp-carousel-comment-form-button-submit' ); |
| 531 | var form = document.querySelector( '#jp-carousel-comment-form' ); |
| 532 | |
| 533 | if ( |
| 534 | carousel.commentField && |
| 535 | carousel.commentField.getAttribute( 'id' ) === target.getAttribute( 'id' ) |
| 536 | ) { |
| 537 | // For first page load |
| 538 | disableKeyboardNavigation(); |
| 539 | domUtil.show( wrapper ); |
| 540 | } else if ( domUtil.matches( target, 'input[type="submit"]' ) ) { |
| 541 | e.preventDefault(); |
| 542 | e.stopPropagation(); |
| 543 | |
| 544 | domUtil.show( spinner ); |
| 545 | form.classList.add( 'jp-carousel-is-disabled' ); |
| 546 | |
| 547 | var ajaxData = { |
| 548 | action: 'post_attachment_comment', |
| 549 | nonce: jetpackCarouselStrings.nonce, |
| 550 | blog_id: data.blog_id, |
| 551 | id: attachmentId, |
| 552 | comment: carousel.commentField.value, |
| 553 | }; |
| 554 | |
| 555 | if ( ! ajaxData.comment.length ) { |
| 556 | updatePostResults( jetpackCarouselStrings.no_comment_text, false ); |
| 557 | return; |
| 558 | } |
| 559 | |
| 560 | if ( Number( jetpackCarouselStrings.is_logged_in ) !== 1 ) { |
| 561 | ajaxData.email = carousel.emailField.value; |
| 562 | ajaxData.author = carousel.authorField.value; |
| 563 | ajaxData.url = carousel.urlField.value; |
| 564 | |
| 565 | if ( Number( jetpackCarouselStrings.require_name_email ) === 1 ) { |
| 566 | if ( ! ajaxData.email.length || ! ajaxData.email.match( '@' ) ) { |
| 567 | updatePostResults( jetpackCarouselStrings.no_comment_email, false ); |
| 568 | return; |
| 569 | } else if ( ! ajaxData.author.length ) { |
| 570 | updatePostResults( jetpackCarouselStrings.no_comment_author, false ); |
| 571 | return; |
| 572 | } |
| 573 | } |
| 574 | } |
| 575 | |
| 576 | var xhr = new XMLHttpRequest(); |
| 577 | xhr.open( 'POST', jetpackCarouselStrings.ajaxurl, true ); |
| 578 | xhr.setRequestHeader( 'X-Requested-With', 'XMLHttpRequest' ); |
| 579 | xhr.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8' ); |
| 580 | |
| 581 | xhr.onreadystatechange = function () { |
| 582 | if ( |
| 583 | this.readyState === XMLHttpRequest.DONE && |
| 584 | this.status >= 200 && |
| 585 | this.status < 300 |
| 586 | ) { |
| 587 | var response; |
| 588 | try { |
| 589 | response = JSON.parse( this.response ); |
| 590 | } catch { |
| 591 | updatePostResults( jetpackCarouselStrings.comment_post_error, false ); |
| 592 | return; |
| 593 | } |
| 594 | if ( response.comment_status === 'approved' ) { |
| 595 | updatePostResults( jetpackCarouselStrings.comment_approved, true ); |
| 596 | } else if ( response.comment_status === 'unapproved' ) { |
| 597 | updatePostResults( jetpackCarouselStrings.comment_unapproved, true ); |
| 598 | } else { |
| 599 | // 'deleted', 'spam', false |
| 600 | updatePostResults( jetpackCarouselStrings.comment_post_error, false ); |
| 601 | } |
| 602 | clearCommentTextAreaValue(); |
| 603 | fetchComments( attachmentId ); |
| 604 | submit.value = jetpackCarouselStrings.post_comment; |
| 605 | domUtil.hide( spinner ); |
| 606 | form.classList.remove( 'jp-carousel-is-disabled' ); |
| 607 | } else { |
| 608 | // TODO: Add error handling and display here |
| 609 | updatePostResults( jetpackCarouselStrings.comment_post_error, false ); |
| 610 | } |
| 611 | }; |
| 612 | |
| 613 | var params = []; |
| 614 | for ( var item in ajaxData ) { |
| 615 | if ( item ) { |
| 616 | // Encode each form element into a URI-compatible string. |
| 617 | var encoded = encodeURIComponent( item ) + '=' + encodeURIComponent( ajaxData[ item ] ); |
| 618 | // In x-www-form-urlencoded, spaces should be `+`, not `%20`. |
| 619 | params.push( encoded.replace( /%20/g, '+' ) ); |
| 620 | } |
| 621 | } |
| 622 | var encodedData = params.join( '&' ); |
| 623 | |
| 624 | xhr.send( encodedData ); |
| 625 | } |
| 626 | } |
| 627 | |
| 628 | /** |
| 629 | * Handles clicks to icons and other action elements in the icon container. |
| 630 | * @param {MouseEvent|TouchEvent|KeyBoardEvent} Event object. |
| 631 | */ |
| 632 | function handleFooterElementClick( e ) { |
| 633 | e.preventDefault(); |
| 634 | |
| 635 | var target = e.target; |
| 636 | var extraInfoContainer = carousel.info.querySelector( '.jp-carousel-info-extra' ); |
| 637 | var photoMetaContainer = carousel.info.querySelector( '.jp-carousel-image-meta' ); |
| 638 | var commentsContainer = carousel.info.querySelector( '.jp-carousel-comments-wrapper' ); |
| 639 | var infoIcon = carousel.info.querySelector( '.jp-carousel-icon-info' ); |
| 640 | var commentsIcon = carousel.info.querySelector( '.jp-carousel-icon-comments' ); |
| 641 | |
| 642 | function handleInfoToggle() { |
| 643 | if ( commentsIcon ) { |
| 644 | commentsIcon.classList.remove( 'jp-carousel-selected' ); |
| 645 | } |
| 646 | infoIcon.classList.toggle( 'jp-carousel-selected' ); |
| 647 | |
| 648 | if ( commentsContainer ) { |
| 649 | commentsContainer.classList.remove( 'jp-carousel-show' ); |
| 650 | } |
| 651 | if ( photoMetaContainer ) { |
| 652 | photoMetaContainer.classList.toggle( 'jp-carousel-show' ); |
| 653 | if ( photoMetaContainer.classList.contains( 'jp-carousel-show' ) ) { |
| 654 | extraInfoContainer.classList.add( 'jp-carousel-show' ); |
| 655 | } else { |
| 656 | extraInfoContainer.classList.remove( 'jp-carousel-show' ); |
| 657 | } |
| 658 | } |
| 659 | } |
| 660 | |
| 661 | function handleCommentToggle() { |
| 662 | if ( infoIcon ) { |
| 663 | infoIcon.classList.remove( 'jp-carousel-selected' ); |
| 664 | } |
| 665 | commentsIcon.classList.toggle( 'jp-carousel-selected' ); |
| 666 | |
| 667 | if ( photoMetaContainer ) { |
| 668 | photoMetaContainer.classList.remove( 'jp-carousel-show' ); |
| 669 | } |
| 670 | if ( commentsContainer ) { |
| 671 | commentsContainer.classList.toggle( 'jp-carousel-show' ); |
| 672 | if ( commentsContainer.classList.contains( 'jp-carousel-show' ) ) { |
| 673 | extraInfoContainer.classList.add( 'jp-carousel-show' ); |
| 674 | } else { |
| 675 | extraInfoContainer.classList.remove( 'jp-carousel-show' ); |
| 676 | } |
| 677 | } |
| 678 | } |
| 679 | |
| 680 | if ( |
| 681 | domUtil.closest( target, '.jp-carousel-icon-info' ) || |
| 682 | target.classList.contains( 'jp-carousel-photo-title' ) |
| 683 | ) { |
| 684 | if ( photoMetaContainer && photoMetaContainer.classList.contains( 'jp-carousel-show' ) ) { |
| 685 | domUtil.scrollToElement( carousel.overlay, carousel.overlay, handleInfoToggle ); |
| 686 | } else { |
| 687 | handleInfoToggle(); |
| 688 | domUtil.scrollToElement( carousel.info, carousel.overlay ); |
| 689 | } |
| 690 | } |
| 691 | |
| 692 | if ( domUtil.closest( target, '.jp-carousel-icon-comments' ) ) { |
| 693 | if ( commentsContainer && commentsContainer.classList.contains( 'jp-carousel-show' ) ) { |
| 694 | domUtil.scrollToElement( carousel.overlay, carousel.overlay, handleCommentToggle ); |
| 695 | } else { |
| 696 | handleCommentToggle(); |
| 697 | domUtil.scrollToElement( carousel.info, carousel.overlay ); |
| 698 | } |
| 699 | } |
| 700 | } |
| 701 | |
| 702 | function processSingleImageGallery() { |
| 703 | var images = document.querySelectorAll( 'a img[data-attachment-id]' ); |
| 704 | Array.prototype.forEach.call( images, function ( image ) { |
| 705 | var link = image.parentElement; |
| 706 | var container = link.parentElement; |
| 707 | |
| 708 | // Skip if image was already added to gallery by shortcode. |
| 709 | if ( container.classList.contains( 'gallery-icon' ) ) { |
| 710 | return; |
| 711 | } |
| 712 | |
| 713 | // Skip if image is part of a gallery. |
| 714 | if ( domUtil.closest( container, galleryItemSelector ) ) { |
| 715 | return; |
| 716 | } |
| 717 | |
| 718 | // Skip if the parent is not actually a link. |
| 719 | if ( ! link.hasAttribute( 'href' ) ) { |
| 720 | return; |
| 721 | } |
| 722 | |
| 723 | var valid = false; |
| 724 | |
| 725 | // If link points to 'Media File' (ignoring GET parameters) and flag is set, allow it. |
| 726 | if ( |
| 727 | link.getAttribute( 'href' ).split( '?' )[ 0 ] === |
| 728 | image.getAttribute( 'data-orig-file' ).split( '?' )[ 0 ] && |
| 729 | Number( jetpackCarouselStrings.single_image_gallery_media_file ) === 1 |
| 730 | ) { |
| 731 | valid = true; |
| 732 | } |
| 733 | |
| 734 | // If link points to 'Attachment Page', allow it. |
| 735 | if ( link.getAttribute( 'href' ) === image.getAttribute( 'data-permalink' ) ) { |
| 736 | valid = true; |
| 737 | } |
| 738 | |
| 739 | // Links to 'Custom URL' or 'Media File' when flag is not set are not valid. |
| 740 | if ( ! valid ) { |
| 741 | return; |
| 742 | } |
| 743 | |
| 744 | makeGalleryImageAccessible( image ); |
| 745 | |
| 746 | // Make this node a gallery recognizable by event listener above. |
| 747 | link.classList.add( 'single-image-gallery' ); |
| 748 | // blog_id is needed to allow posting comments to correct blog. |
| 749 | link.setAttribute( |
| 750 | 'data-carousel-extra', |
| 751 | JSON.stringify( { |
| 752 | blog_id: Number( jetpackCarouselStrings.blog_id ), |
| 753 | } ) |
| 754 | ); |
| 755 | } ); |
| 756 | } |
| 757 | |
| 758 | function testForData( el ) { |
| 759 | return !! ( el && el.getAttribute( 'data-carousel-extra' ) ); |
| 760 | } |
| 761 | |
| 762 | function openOrSelectSlide( gal, index ) { |
| 763 | if ( ! carousel.isOpen ) { |
| 764 | // The `open` method selects the correct slide during the initialization. |
| 765 | loadSwiper( gal, { startIndex: index } ); |
| 766 | } else { |
| 767 | selectSlideAtIndex( index ); |
| 768 | // We have to force swiper to slide to the index onHasChange. |
| 769 | swiper.slideTo( index + 1 ); |
| 770 | } |
| 771 | } |
| 772 | |
| 773 | function selectSlideAtIndex( index ) { |
| 774 | if ( ! index || index < 0 || index > carousel.slides.length ) { |
| 775 | index = 0; |
| 776 | } |
| 777 | carousel.currentSlide = carousel.slides[ index ]; |
| 778 | |
| 779 | var current = carousel.currentSlide; |
| 780 | var attachmentId = current.attrs.attachmentId; |
| 781 | |
| 782 | // Load current image immediately |
| 783 | loadFullImage( carousel.slides[ index ] ); |
| 784 | |
| 785 | // Preload adjacent images in background |
| 786 | preloadAdjacentImages( index ); |
| 787 | |
| 788 | if ( |
| 789 | Number( jetpackCarouselStrings.display_background_image ) === 1 && |
| 790 | ! carousel.slides[ index ].backgroundImage |
| 791 | ) { |
| 792 | loadBackgroundImage( carousel.slides[ index ] ); |
| 793 | } |
| 794 | |
| 795 | domUtil.hide( carousel.caption ); |
| 796 | updateTitleCaptionAndDesc( { |
| 797 | caption: current.attrs.caption, |
| 798 | title: current.attrs.title, |
| 799 | desc: current.attrs.desc, |
| 800 | } ); |
| 801 | |
| 802 | var imageMeta = carousel.slides[ index ].attrs.imageMeta; |
| 803 | updateExif( imageMeta ); |
| 804 | updateFullSizeLink( current ); |
| 805 | |
| 806 | if ( Number( jetpackCarouselStrings.display_comments ) === 1 ) { |
| 807 | testCommentsOpened( carousel.slides[ index ].attrs.commentsOpened ); |
| 808 | fetchComments( attachmentId ); |
| 809 | domUtil.hide( carousel.info.querySelector( '#jp-carousel-comment-post-results' ) ); |
| 810 | } |
| 811 | |
| 812 | // Update pagination in footer. |
| 813 | var pagination = carousel.info.querySelector( '.jp-carousel-pagination' ); |
| 814 | if ( pagination && carousel.slides.length > 5 ) { |
| 815 | var currentPage = index + 1; |
| 816 | pagination.innerHTML = '<span>' + currentPage + ' / ' + carousel.slides.length + '</span>'; |
| 817 | } |
| 818 | |
| 819 | // Record pageview in WP Stats, for each new image loaded full-screen. |
| 820 | if ( jetpackCarouselStrings.stats && carousel.isOpen ) { |
| 821 | new Image().src = |
| 822 | document.location.protocol + |
| 823 | '//pixel.wp.com/g.gif?' + |
| 824 | jetpackCarouselStrings.stats + |
| 825 | '&post=' + |
| 826 | encodeURIComponent( attachmentId ) + |
| 827 | '&rand=' + |
| 828 | Math.random(); |
| 829 | } |
| 830 | |
| 831 | if ( carousel.isOpen ) { |
| 832 | pageview( attachmentId ); |
| 833 | } |
| 834 | |
| 835 | lastKnownLocationHash = '#jp-carousel-' + attachmentId; |
| 836 | window.location.hash = lastKnownLocationHash; |
| 837 | } |
| 838 | |
| 839 | function restoreScroll() { |
| 840 | window.scrollTo( window.scrollX || window.pageXOffset || 0, scrollPos || 0 ); |
| 841 | } |
| 842 | |
| 843 | function closeCarousel() { |
| 844 | // Make sure to let the page scroll again. |
| 845 | document.body.style.overflow = originalOverflow; |
| 846 | document.documentElement.style.overflow = originalHOverflow; |
| 847 | clearCommentTextAreaValue(); |
| 848 | |
| 849 | disableKeyboardNavigation(); |
| 850 | |
| 851 | domUtil.emitEvent( carousel.overlay, 'jp_carousel.beforeClose' ); |
| 852 | restoreScroll(); |
| 853 | carousel.isOpen = false; |
| 854 | swiper.destroy(); |
| 855 | // Clear slide data for DOM garbage collection. |
| 856 | carousel.slides = []; |
| 857 | carousel.currentSlide = undefined; |
| 858 | carousel.gallery.innerHTML = ''; |
| 859 | |
| 860 | domUtil.fadeOut( carousel.overlay, function () { |
| 861 | domUtil.emitEvent( carousel.overlay, 'jp_carousel.afterClose' ); |
| 862 | } ); |
| 863 | } |
| 864 | |
| 865 | function calculateMaxSlideDimensions() { |
| 866 | return { |
| 867 | width: window.innerWidth, |
| 868 | height: window.innerHeight - 64, //subtract height of bottom info bar, |
| 869 | }; |
| 870 | } |
| 871 | |
| 872 | function sanitizePhotonUrl( url ) { |
| 873 | var urlObj; |
| 874 | try { |
| 875 | urlObj = new URL( url ); |
| 876 | // eslint-disable-next-line no-unused-vars |
| 877 | } catch ( e ) { |
| 878 | return url; |
| 879 | } |
| 880 | |
| 881 | var whitelistedPhotonArgs = [ |
| 882 | 'quality', |
| 883 | 'ssl', |
| 884 | 'filter', |
| 885 | 'brightness', |
| 886 | 'contrast', |
| 887 | 'colorize', |
| 888 | 'smooth', |
| 889 | ]; |
| 890 | |
| 891 | // Get all search params |
| 892 | var searchParams = Array.from( urlObj.searchParams.entries() ); |
| 893 | |
| 894 | // Clear all existing params |
| 895 | urlObj.search = ''; |
| 896 | |
| 897 | // Only add back whitelisted params |
| 898 | searchParams.forEach( ( [ key, value ] ) => { |
| 899 | if ( whitelistedPhotonArgs.includes( key ) ) { |
| 900 | urlObj.searchParams.append( key, value ); |
| 901 | } |
| 902 | } ); |
| 903 | |
| 904 | return urlObj; |
| 905 | } |
| 906 | |
| 907 | function selectBestImageUrl( args ) { |
| 908 | if ( typeof args !== 'object' ) { |
| 909 | args = {}; |
| 910 | } |
| 911 | |
| 912 | if ( typeof args.origFile === 'undefined' ) { |
| 913 | return ''; |
| 914 | } |
| 915 | |
| 916 | if ( typeof args.origWidth === 'undefined' || typeof args.maxWidth === 'undefined' ) { |
| 917 | return args.origFile; |
| 918 | } |
| 919 | |
| 920 | // When there's no large file to fall back on (e.g. images that weren't enriched with |
| 921 | // Jetpack's data-large-file attribute), use the original file. A missing attribute is |
| 922 | // read as an empty string, so we can't only guard against `undefined` here: otherwise a |
| 923 | // narrow (portrait, mobile) viewport would return that empty string as the image source, |
| 924 | // leaving the carousel with a blank slide. |
| 925 | if ( ! args.largeFile ) { |
| 926 | return args.origFile; |
| 927 | } |
| 928 | |
| 929 | // Check if the image is being served by Photon (using a regular expression on the hostname). |
| 930 | |
| 931 | var imageLinkParser = document.createElement( 'a' ); |
| 932 | imageLinkParser.href = args.largeFile; |
| 933 | |
| 934 | var isPhotonUrl = /^i[0-2]\.wp\.com$/i.test( imageLinkParser.hostname ); |
| 935 | |
| 936 | var largeSizeParts = getImageSizeParts( args.largeFile, args.origWidth, isPhotonUrl ); |
| 937 | |
| 938 | var largeWidth = parseInt( largeSizeParts[ 0 ], 10 ); |
| 939 | var largeHeight = parseInt( largeSizeParts[ 1 ], 10 ); |
| 940 | |
| 941 | args.origMaxWidth = args.maxWidth; |
| 942 | args.origMaxHeight = args.maxHeight; |
| 943 | |
| 944 | // Give devices with a higher devicePixelRatio higher-res images (Retina display = 2, Android phones = 1.5, etc) |
| 945 | if ( typeof window.devicePixelRatio !== 'undefined' && window.devicePixelRatio > 1 ) { |
| 946 | args.maxWidth = args.maxWidth * window.devicePixelRatio; |
| 947 | args.maxHeight = args.maxHeight * window.devicePixelRatio; |
| 948 | } |
| 949 | |
| 950 | if ( largeWidth >= args.maxWidth || largeHeight >= args.maxHeight ) { |
| 951 | return args.largeFile; |
| 952 | } |
| 953 | |
| 954 | if ( isPhotonUrl ) { |
| 955 | // args.origFile doesn't point to a Photon url, so in this case we use args.largeFile |
| 956 | // to return the photon url of the original image. |
| 957 | if ( args.largeFile.lastIndexOf( '?' ) === -1 ) { |
| 958 | return args.largeFile; |
| 959 | } |
| 960 | |
| 961 | // Sanitize the URL to remove non-cosmetic changes like resize, fit, etc. |
| 962 | var sanitizedUrl = sanitizePhotonUrl( args.largeFile ); |
| 963 | |
| 964 | // If we have a really large image load a smaller version |
| 965 | // that is closer to the viewable size |
| 966 | if ( args.origWidth > args.maxWidth || args.origHeight > args.maxHeight ) { |
| 967 | // @2x the max sizes so we get a high enough resolution for zooming. |
| 968 | args.origMaxWidth = args.maxWidth * 2; |
| 969 | args.origMaxHeight = args.maxHeight * 2; |
| 970 | // Add the fit arg to the list of Photon args. |
| 971 | sanitizedUrl.searchParams.set( 'fit', args.origMaxWidth + ',' + args.origMaxHeight ); |
| 972 | } |
| 973 | |
| 974 | // Return a Photon URL image that's better fitted for the viewport. |
| 975 | return sanitizedUrl.toString(); |
| 976 | } |
| 977 | |
| 978 | return args.origFile; |
| 979 | } |
| 980 | |
| 981 | function getImageSizeParts( file, origWidth, isPhotonUrl ) { |
| 982 | var size = isPhotonUrl |
| 983 | ? file.replace( /.*=([\d]+%2C[\d]+).*$/, '$1' ) |
| 984 | : file.replace( /.*-([\d]+x[\d]+)\..+$/, '$1' ); |
| 985 | |
| 986 | var sizeParts; |
| 987 | if ( size !== file ) { |
| 988 | sizeParts = isPhotonUrl ? size.split( '%2C' ) : size.split( 'x' ); |
| 989 | } else { |
| 990 | sizeParts = [ origWidth, 0 ]; |
| 991 | } |
| 992 | |
| 993 | // If one of the dimensions is set to 9999, then the actual value of that dimension can't be retrieved from the url. |
| 994 | // In that case, we set the value to 0. |
| 995 | if ( sizeParts[ 0 ] === '9999' ) { |
| 996 | sizeParts[ 0 ] = '0'; |
| 997 | } |
| 998 | |
| 999 | if ( sizeParts[ 1 ] === '9999' ) { |
| 1000 | sizeParts[ 1 ] = '0'; |
| 1001 | } |
| 1002 | |
| 1003 | return sizeParts; |
| 1004 | } |
| 1005 | |
| 1006 | /** |
| 1007 | * Returns a number in a fraction format that represents the shutter speed. |
| 1008 | * @param Number speed |
| 1009 | * @return String |
| 1010 | */ |
| 1011 | function formatShutterSpeed( speed ) { |
| 1012 | var denominator; |
| 1013 | |
| 1014 | // round to one decimal if value > 1s by multiplying it by 10, rounding, then dividing by 10 again |
| 1015 | if ( speed >= 1 ) { |
| 1016 | return Math.round( speed * 10 ) / 10 + 's'; |
| 1017 | } |
| 1018 | |
| 1019 | // If the speed is less than one, we find the denominator by inverting |
| 1020 | // the number. Since cameras usually use rational numbers as shutter |
| 1021 | // speeds, we should get a nice round number. Or close to one in cases |
| 1022 | // like 1/30. So we round it. |
| 1023 | denominator = Math.round( 1 / speed ); |
| 1024 | |
| 1025 | return '1/' + denominator + 's'; |
| 1026 | } |
| 1027 | |
| 1028 | function parseTitleOrDesc( value ) { |
| 1029 | if ( ! value.match( ' ' ) && value.match( '_' ) ) { |
| 1030 | return ''; |
| 1031 | } |
| 1032 | |
| 1033 | return value; |
| 1034 | } |
| 1035 | |
| 1036 | function updateTitleCaptionAndDesc( data ) { |
| 1037 | var caption; |
| 1038 | var title; |
| 1039 | var desc; |
| 1040 | var captionMainElement; |
| 1041 | var captionInfoExtraElement; |
| 1042 | var titleElement; |
| 1043 | var descriptionElement; |
| 1044 | |
| 1045 | captionMainElement = carousel.overlay.querySelector( '.jp-carousel-photo-caption' ); |
| 1046 | captionInfoExtraElement = carousel.overlay.querySelector( '.jp-carousel-caption' ); |
| 1047 | |
| 1048 | titleElement = carousel.overlay.querySelector( '.jp-carousel-photo-title' ); |
| 1049 | descriptionElement = carousel.overlay.querySelector( '.jp-carousel-photo-description' ); |
| 1050 | |
| 1051 | domUtil.hide( captionMainElement ); |
| 1052 | domUtil.hide( captionInfoExtraElement ); |
| 1053 | domUtil.hide( titleElement ); |
| 1054 | domUtil.hide( descriptionElement ); |
| 1055 | |
| 1056 | caption = parseTitleOrDesc( data.caption ) || ''; |
| 1057 | title = parseTitleOrDesc( data.title ) || ''; |
| 1058 | desc = parseTitleOrDesc( data.desc ) || ''; |
| 1059 | |
| 1060 | if ( caption || title || desc ) { |
| 1061 | if ( caption ) { |
| 1062 | captionMainElement.innerHTML = caption; |
| 1063 | captionInfoExtraElement.innerHTML = caption; |
| 1064 | |
| 1065 | domUtil.show( captionMainElement ); |
| 1066 | domUtil.show( captionInfoExtraElement ); |
| 1067 | } |
| 1068 | |
| 1069 | if ( domUtil.stripHTML( caption ) === domUtil.stripHTML( title ) ) { |
| 1070 | title = ''; |
| 1071 | } |
| 1072 | |
| 1073 | if ( domUtil.stripHTML( caption ) === domUtil.stripHTML( desc ) ) { |
| 1074 | desc = ''; |
| 1075 | } |
| 1076 | |
| 1077 | if ( domUtil.stripHTML( title ) === domUtil.stripHTML( desc ) ) { |
| 1078 | desc = ''; |
| 1079 | } |
| 1080 | |
| 1081 | if ( desc ) { |
| 1082 | descriptionElement.innerHTML = desc; |
| 1083 | domUtil.show( descriptionElement ); |
| 1084 | |
| 1085 | if ( ! title && ! caption ) { |
| 1086 | captionMainElement.textContent = domUtil.stripHTML( desc ); |
| 1087 | domUtil.show( captionMainElement ); |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | if ( title ) { |
| 1092 | var plainTitle = domUtil.stripHTML( title ); |
| 1093 | titleElement.textContent = plainTitle; |
| 1094 | |
| 1095 | if ( ! caption ) { |
| 1096 | captionMainElement.textContent = plainTitle; |
| 1097 | captionInfoExtraElement.textContent = plainTitle; |
| 1098 | |
| 1099 | domUtil.show( captionMainElement ); |
| 1100 | } |
| 1101 | |
| 1102 | domUtil.show( titleElement ); |
| 1103 | } |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | // updateExif updates the contents of the exif UL (.jp-carousel-image-exif) |
| 1108 | function updateExif( meta ) { |
| 1109 | if ( ! meta || Number( jetpackCarouselStrings.display_exif ) !== 1 ) { |
| 1110 | return false; |
| 1111 | } |
| 1112 | |
| 1113 | // Locate the parent container for the metadata. |
| 1114 | var metaContainer = carousel.info.querySelector( '.jp-carousel-image-meta' ); |
| 1115 | if ( ! metaContainer ) { |
| 1116 | return false; |
| 1117 | } |
| 1118 | |
| 1119 | var html = ''; |
| 1120 | |
| 1121 | for ( var key in meta ) { |
| 1122 | var val = meta[ key ]; |
| 1123 | var metaKeys = jetpackCarouselStrings.meta_data || []; |
| 1124 | |
| 1125 | if ( parseFloat( val ) === 0 || ! val.length || metaKeys.indexOf( key ) === -1 ) { |
| 1126 | continue; |
| 1127 | } |
| 1128 | |
| 1129 | switch ( key ) { |
| 1130 | case 'focal_length': |
| 1131 | val = val + 'mm'; |
| 1132 | break; |
| 1133 | case 'shutter_speed': |
| 1134 | val = formatShutterSpeed( val ); |
| 1135 | break; |
| 1136 | case 'aperture': |
| 1137 | val = 'f/' + val; |
| 1138 | break; |
| 1139 | } |
| 1140 | |
| 1141 | html += '<li><h5>' + jetpackCarouselStrings[ key ] + '</h5>' + val + '</li>'; |
| 1142 | } |
| 1143 | |
| 1144 | // Handle the UL element dynamically to ensure valid markup. |
| 1145 | var ul = metaContainer.querySelector( 'ul.jp-carousel-image-exif' ); |
| 1146 | |
| 1147 | if ( html !== '' ) { |
| 1148 | // If there is data to display and the UL doesn't exist, create it. |
| 1149 | if ( ! ul ) { |
| 1150 | ul = document.createElement( 'ul' ); |
| 1151 | ul.className = 'jp-carousel-image-exif'; |
| 1152 | |
| 1153 | // Insert right after the title/caption container if it exists, otherwise prepend |
| 1154 | var titleAndCaption = metaContainer.querySelector( '.jp-carousel-title-and-caption' ); |
| 1155 | if ( titleAndCaption && titleAndCaption.nextSibling ) { |
| 1156 | metaContainer.insertBefore( ul, titleAndCaption.nextSibling ); |
| 1157 | } else { |
| 1158 | metaContainer.insertBefore( ul, metaContainer.firstChild ); |
| 1159 | } |
| 1160 | } |
| 1161 | ul.innerHTML = html; |
| 1162 | ul.style.removeProperty( 'display' ); |
| 1163 | } else if ( ul ) { |
| 1164 | // If the data is empty but the UL exists in the DOM, remove it. |
| 1165 | ul.parentNode.removeChild( ul ); |
| 1166 | } |
| 1167 | } |
| 1168 | |
| 1169 | // Update the contents of the jp-carousel-image-download link |
| 1170 | function updateFullSizeLink( currentSlide ) { |
| 1171 | if ( ! currentSlide ) { |
| 1172 | return false; |
| 1173 | } |
| 1174 | var original; |
| 1175 | var origSize = [ currentSlide.attrs.origWidth, currentSlide.attrs.origHeight ]; |
| 1176 | var imageLinkParser = document.createElement( 'a' ); |
| 1177 | |
| 1178 | imageLinkParser.href = currentSlide.attrs.src.replace( /\?.+$/, '' ); |
| 1179 | |
| 1180 | // Is this a Photon URL? |
| 1181 | if ( imageLinkParser.hostname.match( /^i[\d]{1}\.wp\.com$/i ) !== null ) { |
| 1182 | original = imageLinkParser.href; |
| 1183 | } else { |
| 1184 | original = currentSlide.attrs.origFile.replace( /\?.+$/, '' ); |
| 1185 | } |
| 1186 | |
| 1187 | var downloadText = carousel.info.querySelector( '.jp-carousel-download-text' ); |
| 1188 | var permalink = carousel.info.querySelector( '.jp-carousel-image-download' ); |
| 1189 | |
| 1190 | downloadText.innerHTML = util.applyReplacements( |
| 1191 | jetpackCarouselStrings.download_original, |
| 1192 | origSize |
| 1193 | ); |
| 1194 | permalink.setAttribute( 'href', original ); |
| 1195 | permalink.style.removeProperty( 'display' ); |
| 1196 | } |
| 1197 | |
| 1198 | function testCommentsOpened( opened ) { |
| 1199 | var commentForm = carousel.info.querySelector( '#jp-carousel-comment-form-container' ); |
| 1200 | var isOpened = parseInt( opened, 10 ) === 1; |
| 1201 | |
| 1202 | if ( isOpened ) { |
| 1203 | domUtil.fadeIn( commentForm ); |
| 1204 | } else { |
| 1205 | domUtil.fadeOut( commentForm ); |
| 1206 | } |
| 1207 | } |
| 1208 | |
| 1209 | function fetchComments( attachmentId, offset ) { |
| 1210 | var shouldClear = offset === undefined; |
| 1211 | var commentsIndicator = carousel.info.querySelector( |
| 1212 | '.jp-carousel-icon-comments .jp-carousel-has-comments-indicator' |
| 1213 | ); |
| 1214 | |
| 1215 | commentsIndicator.classList.remove( 'jp-carousel-show' ); |
| 1216 | |
| 1217 | clearInterval( commentInterval ); |
| 1218 | |
| 1219 | if ( ! attachmentId ) { |
| 1220 | return; |
| 1221 | } |
| 1222 | |
| 1223 | if ( ! offset || offset < 1 ) { |
| 1224 | offset = 0; |
| 1225 | } |
| 1226 | |
| 1227 | var comments = carousel.info.querySelector( '.jp-carousel-comments' ); |
| 1228 | var commentsLoading = carousel.info.querySelector( '#jp-carousel-comments-loading' ); |
| 1229 | domUtil.show( commentsLoading ); |
| 1230 | |
| 1231 | if ( shouldClear ) { |
| 1232 | domUtil.hide( comments ); |
| 1233 | comments.innerHTML = ''; |
| 1234 | } |
| 1235 | |
| 1236 | var xhr = new XMLHttpRequest(); |
| 1237 | var url = |
| 1238 | jetpackCarouselStrings.ajaxurl + |
| 1239 | '?action=get_attachment_comments' + |
| 1240 | '&nonce=' + |
| 1241 | jetpackCarouselStrings.nonce + |
| 1242 | '&id=' + |
| 1243 | attachmentId + |
| 1244 | '&offset=' + |
| 1245 | offset; |
| 1246 | xhr.open( 'GET', url ); |
| 1247 | xhr.setRequestHeader( 'X-Requested-With', 'XMLHttpRequest' ); |
| 1248 | |
| 1249 | var onError = function () { |
| 1250 | domUtil.fadeIn( comments ); |
| 1251 | domUtil.fadeOut( commentsLoading ); |
| 1252 | }; |
| 1253 | |
| 1254 | xhr.onload = function () { |
| 1255 | // Ignore the results if they arrive late and we're now on a different slide. |
| 1256 | if ( |
| 1257 | ! carousel.currentSlide || |
| 1258 | carousel.currentSlide.attrs.attachmentId !== attachmentId |
| 1259 | ) { |
| 1260 | return; |
| 1261 | } |
| 1262 | |
| 1263 | var isSuccess = xhr.status >= 200 && xhr.status < 300; |
| 1264 | var data; |
| 1265 | try { |
| 1266 | data = JSON.parse( xhr.responseText ); |
| 1267 | } catch { |
| 1268 | // Do nothing. |
| 1269 | } |
| 1270 | |
| 1271 | if ( ! isSuccess || ! data || ! Array.isArray( data ) ) { |
| 1272 | return onError(); |
| 1273 | } |
| 1274 | |
| 1275 | if ( shouldClear ) { |
| 1276 | comments.innerHTML = ''; |
| 1277 | } |
| 1278 | |
| 1279 | for ( var i = 0; i < data.length; i++ ) { |
| 1280 | var entry = data[ i ]; |
| 1281 | var comment = document.createElement( 'div' ); |
| 1282 | comment.classList.add( 'jp-carousel-comment' ); |
| 1283 | comment.setAttribute( 'id', 'jp-carousel-comment-' + entry.id ); |
| 1284 | comment.innerHTML = |
| 1285 | '<div class="comment-gravatar">' + |
| 1286 | entry.gravatar_markup + |
| 1287 | '</div>' + |
| 1288 | '<div class="comment-content">' + |
| 1289 | '<div class="comment-author">' + |
| 1290 | entry.author_markup + |
| 1291 | '</div>' + |
| 1292 | '<div class="comment-date">' + |
| 1293 | entry.date_gmt + |
| 1294 | '</div>' + |
| 1295 | entry.content + |
| 1296 | '</div>'; |
| 1297 | comments.appendChild( comment ); |
| 1298 | |
| 1299 | // Set the interval to check for a new page of comments. |
| 1300 | clearInterval( commentInterval ); |
| 1301 | commentInterval = setInterval( function () { |
| 1302 | if ( carousel.container.scrollTop + 150 > window.innerHeight ) { |
| 1303 | fetchComments( attachmentId, offset + 10 ); |
| 1304 | clearInterval( commentInterval ); |
| 1305 | } |
| 1306 | }, 300 ); |
| 1307 | } |
| 1308 | |
| 1309 | if ( data.length > 0 ) { |
| 1310 | domUtil.show( comments ); |
| 1311 | commentsIndicator.innerText = data.length; |
| 1312 | commentsIndicator.classList.add( 'jp-carousel-show' ); |
| 1313 | } |
| 1314 | |
| 1315 | domUtil.hide( commentsLoading ); |
| 1316 | }; |
| 1317 | |
| 1318 | xhr.onerror = onError; |
| 1319 | |
| 1320 | xhr.send(); |
| 1321 | } |
| 1322 | |
| 1323 | function loadFullImage( slide ) { |
| 1324 | var attrs = slide.attrs; |
| 1325 | var image = slide.el.querySelector( 'img' ); |
| 1326 | |
| 1327 | if ( image.hasAttribute( 'data-loaded' ) ) { |
| 1328 | return; |
| 1329 | } |
| 1330 | |
| 1331 | image.setAttribute( 'itemprop', 'image' ); |
| 1332 | image.setAttribute( 'data-loaded', 1 ); |
| 1333 | |
| 1334 | var hasPreview = attrs.previewImage && attrs.previewImage !== attrs.src; |
| 1335 | |
| 1336 | if ( ! hasPreview ) { |
| 1337 | // No usable in-page thumbnail (e.g. a lazy-loading plugin swapped the |
| 1338 | // gallery src for a placeholder). Load the full-size image straight |
| 1339 | // into the visible element so the slide is never left without a src. |
| 1340 | image.src = attrs.src; |
| 1341 | return; |
| 1342 | } |
| 1343 | |
| 1344 | // Show the thumbnail the browser has already decoded for this image in the |
| 1345 | // post itself. Without it the slide stays empty until the full-size image |
| 1346 | // arrives, which reads as a black screen whenever the reader moves through |
| 1347 | // the gallery faster than the images can download. |
| 1348 | image.src = attrs.previewImage; |
| 1349 | // The thumbnail is much smaller than the slide, so soften the upscale |
| 1350 | // until the full-size image replaces it. |
| 1351 | image.style.filter = 'blur(8px)'; |
| 1352 | |
| 1353 | // Load the full-size image off-DOM, then swap it in over the preview. On |
| 1354 | // error the (blurred) preview stays put rather than reverting to blank. |
| 1355 | var fullImage = new window.Image(); |
| 1356 | |
| 1357 | fullImage.addEventListener( |
| 1358 | 'load', |
| 1359 | function () { |
| 1360 | // Cached by this point, so swapping it in is effectively instant. |
| 1361 | image.src = attrs.src; |
| 1362 | image.style.filter = ''; |
| 1363 | }, |
| 1364 | { once: true } |
| 1365 | ); |
| 1366 | |
| 1367 | fullImage.addEventListener( |
| 1368 | 'error', |
| 1369 | function () { |
| 1370 | image.style.filter = ''; |
| 1371 | }, |
| 1372 | { once: true } |
| 1373 | ); |
| 1374 | |
| 1375 | fullImage.src = attrs.src; |
| 1376 | } |
| 1377 | |
| 1378 | function preloadAdjacentImages( currentIndex ) { |
| 1379 | var indicesToPreload = []; |
| 1380 | var totalSlides = carousel.slides.length; |
| 1381 | |
| 1382 | // Only preload adjacent images if we have more than one slide (matching loop condition) |
| 1383 | if ( totalSlides > 1 ) { |
| 1384 | // Previous image (with loop handling) |
| 1385 | var prevIndex = currentIndex > 0 ? currentIndex - 1 : totalSlides - 1; |
| 1386 | indicesToPreload.push( prevIndex ); |
| 1387 | |
| 1388 | // Next image (with loop handling) |
| 1389 | var nextIndex = currentIndex < totalSlides - 1 ? currentIndex + 1 : 0; |
| 1390 | indicesToPreload.push( nextIndex ); |
| 1391 | } |
| 1392 | |
| 1393 | indicesToPreload.forEach( function ( index ) { |
| 1394 | var slide = carousel.slides[ index ]; |
| 1395 | if ( slide ) { |
| 1396 | // Load in background without showing |
| 1397 | loadFullImage( slide ); |
| 1398 | |
| 1399 | // Also load background image if enabled |
| 1400 | if ( |
| 1401 | Number( jetpackCarouselStrings.display_background_image ) === 1 && |
| 1402 | ! slide.backgroundImage |
| 1403 | ) { |
| 1404 | loadBackgroundImage( slide ); |
| 1405 | } |
| 1406 | } |
| 1407 | } ); |
| 1408 | } |
| 1409 | |
| 1410 | function loadBackgroundImage( slide ) { |
| 1411 | var image = slide.attrs.originalElement; |
| 1412 | |
| 1413 | if ( ! image ) { |
| 1414 | return; |
| 1415 | } |
| 1416 | |
| 1417 | if ( image.complete && image.naturalHeight !== 0 ) { |
| 1418 | applyBackgroundImage( slide, image ); |
| 1419 | return; |
| 1420 | } |
| 1421 | |
| 1422 | // The thumbnail in the post may still be loading, or may be lazy-loaded. |
| 1423 | // Use an event listener rather than `onload`, which would overwrite any |
| 1424 | // handler the page has already attached to its own image. Pair the load |
| 1425 | // handler with an error handler so a thumbnail that never loads doesn't |
| 1426 | // leave a listener (and its reference to the slide) attached for good. |
| 1427 | var onLoad = function () { |
| 1428 | image.removeEventListener( 'error', onError ); |
| 1429 | applyBackgroundImage( slide, image ); |
| 1430 | }; |
| 1431 | var onError = function () { |
| 1432 | image.removeEventListener( 'load', onLoad ); |
| 1433 | }; |
| 1434 | image.addEventListener( 'load', onLoad, { once: true } ); |
| 1435 | image.addEventListener( 'error', onError, { once: true } ); |
| 1436 | } |
| 1437 | |
| 1438 | function applyBackgroundImage( slide, image ) { |
| 1439 | var url = util.getBackgroundImage( image ); |
| 1440 | |
| 1441 | if ( ! url ) { |
| 1442 | return; |
| 1443 | } |
| 1444 | |
| 1445 | // Always paint onto the slide the image belongs to. Preloading runs this |
| 1446 | // for the neighbouring slides too, so painting onto whichever slide happens |
| 1447 | // to be active would put the wrong image behind it and leave the slide it |
| 1448 | // was meant for with no placeholder at all. |
| 1449 | slide.backgroundImage = url; |
| 1450 | slide.el.style.backgroundImage = 'url(' + url + ')'; |
| 1451 | slide.el.style.backgroundSize = 'cover'; |
| 1452 | slide.el.style.backgroundPosition = 'center'; |
| 1453 | } |
| 1454 | |
| 1455 | function clearCommentTextAreaValue() { |
| 1456 | if ( carousel.commentField ) { |
| 1457 | carousel.commentField.value = ''; |
| 1458 | } |
| 1459 | } |
| 1460 | |
| 1461 | function getOriginalDimensions( el ) { |
| 1462 | var size = el.getAttribute( 'data-orig-size' ) || ''; |
| 1463 | |
| 1464 | if ( size ) { |
| 1465 | var parts = size.split( ',' ); |
| 1466 | return { width: parseInt( parts[ 0 ], 10 ), height: parseInt( parts[ 1 ], 10 ) }; |
| 1467 | } |
| 1468 | return { |
| 1469 | width: el.getAttribute( 'data-original-width' ) || el.getAttribute( 'width' ) || undefined, |
| 1470 | height: |
| 1471 | el.getAttribute( 'data-original-height' ) || el.getAttribute( 'height' ) || undefined, |
| 1472 | }; |
| 1473 | } |
| 1474 | |
| 1475 | function initCarouselSlides( items, startIndex ) { |
| 1476 | carousel.slides = []; |
| 1477 | |
| 1478 | var max = calculateMaxSlideDimensions(); |
| 1479 | |
| 1480 | // If the startIndex is not 0 then preload the clicked image first. |
| 1481 | if ( startIndex !== 0 && items[ startIndex ].getAttribute( 'data-gallery-src' ) !== null ) { |
| 1482 | var img = new Image(); |
| 1483 | img.src = items[ startIndex ].getAttribute( 'data-gallery-src' ); |
| 1484 | } |
| 1485 | |
| 1486 | // create the 'slide' |
| 1487 | Array.prototype.forEach.call( items, function ( item, i ) { |
| 1488 | var permalinkEl = domUtil.closest( item, 'a' ); |
| 1489 | var origFile = item.getAttribute( 'data-orig-file' ) || item.getAttribute( 'src-orig' ); |
| 1490 | var attrID = |
| 1491 | item.getAttribute( 'data-attachment-id' ) || item.getAttribute( 'data-id' ) || '0'; |
| 1492 | var caption = document.querySelector( |
| 1493 | 'img[data-attachment-id="' + attrID + '"] + figcaption' |
| 1494 | ); |
| 1495 | |
| 1496 | if ( caption ) { |
| 1497 | caption = caption.innerHTML; |
| 1498 | } else { |
| 1499 | caption = item.getAttribute( 'data-image-caption' ); |
| 1500 | } |
| 1501 | |
| 1502 | var attrs = { |
| 1503 | originalElement: item, |
| 1504 | attachmentId: attrID, |
| 1505 | commentsOpened: item.getAttribute( 'data-comments-opened' ) || '0', |
| 1506 | imageMeta: domUtil.getJSONAttribute( item, 'data-image-meta' ) || {}, |
| 1507 | title: item.getAttribute( 'data-image-title' ) || '', |
| 1508 | desc: item.getAttribute( 'data-image-description' ) || '', |
| 1509 | largeFile: item.getAttribute( 'data-large-file' ) || '', |
| 1510 | origFile: origFile || '', |
| 1511 | thumbSize: { width: item.naturalWidth, height: item.naturalHeight }, |
| 1512 | caption: caption || '', |
| 1513 | permalink: permalinkEl && permalinkEl.getAttribute( 'href' ), |
| 1514 | src: origFile || item.getAttribute( 'src' ) || '', |
| 1515 | }; |
| 1516 | |
| 1517 | var tiledGalleryItem = domUtil.closest( item, '.tiled-gallery-item' ); |
| 1518 | var tiledCaptionEl = |
| 1519 | tiledGalleryItem && tiledGalleryItem.querySelector( '.tiled-gallery-caption' ); |
| 1520 | var tiledCaption = tiledCaptionEl && tiledCaptionEl.innerHTML; |
| 1521 | if ( tiledCaption ) { |
| 1522 | attrs.caption = tiledCaption; |
| 1523 | } |
| 1524 | |
| 1525 | var origDimensions = getOriginalDimensions( item ); |
| 1526 | |
| 1527 | attrs.origWidth = origDimensions.width || attrs.thumbSize.width; |
| 1528 | attrs.origHeight = origDimensions.height || attrs.thumbSize.height; |
| 1529 | |
| 1530 | if ( typeof wpcom !== 'undefined' && wpcom.carousel && wpcom.carousel.generateImgSrc ) { |
| 1531 | attrs.src = wpcom.carousel.generateImgSrc( item, max ); |
| 1532 | } else { |
| 1533 | attrs.src = selectBestImageUrl( { |
| 1534 | origFile: attrs.src, |
| 1535 | origWidth: attrs.origWidth, |
| 1536 | origHeight: attrs.origHeight, |
| 1537 | maxWidth: max.width, |
| 1538 | maxHeight: max.height, |
| 1539 | largeFile: attrs.largeFile, |
| 1540 | } ); |
| 1541 | } |
| 1542 | |
| 1543 | // Set the final src. |
| 1544 | item.setAttribute( 'data-gallery-src', attrs.src ); |
| 1545 | |
| 1546 | if ( attrs.attachmentId !== '0' ) { |
| 1547 | attrs.title = util.texturize( attrs.title ); |
| 1548 | attrs.desc = util.texturize( attrs.desc ); |
| 1549 | attrs.caption = util.texturize( attrs.caption ); |
| 1550 | |
| 1551 | // Initially, the image is a 1x1 transparent gif. |
| 1552 | // The preview is shown as a background image on the slide itself. |
| 1553 | var image = new Image(); |
| 1554 | |
| 1555 | var slideEl = document.createElement( 'div' ); |
| 1556 | slideEl.classList.add( 'swiper-slide' ); |
| 1557 | slideEl.setAttribute( 'itemprop', 'associatedMedia' ); |
| 1558 | slideEl.setAttribute( 'itemscope', '' ); |
| 1559 | slideEl.setAttribute( 'itemtype', 'https://schema.org/ImageObject' ); |
| 1560 | var zoomEl = document.createElement( 'div' ); |
| 1561 | zoomEl.classList.add( 'swiper-zoom-container' ); |
| 1562 | |
| 1563 | carousel.gallery.appendChild( slideEl ); |
| 1564 | |
| 1565 | slideEl.appendChild( zoomEl ); |
| 1566 | zoomEl.appendChild( image ); |
| 1567 | slideEl.setAttribute( 'data-attachment-id', attrs.attachmentId ); |
| 1568 | slideEl.setAttribute( 'data-permalink', attrs.permalink ); |
| 1569 | slideEl.setAttribute( 'data-orig-file', attrs.origFile ); |
| 1570 | |
| 1571 | // Reuse the thumbnail the browser has already decoded for this image |
| 1572 | // in the post. It costs nothing to display and gives the slide |
| 1573 | // something to show while the full-size image is downloading. |
| 1574 | attrs.previewImage = item.currentSrc || item.getAttribute( 'src' ) || ''; |
| 1575 | |
| 1576 | var slide = { el: slideEl, attrs: attrs, index: i }; |
| 1577 | carousel.slides.push( slide ); |
| 1578 | } |
| 1579 | } ); |
| 1580 | } |
| 1581 | |
| 1582 | function loadSwiper( gallery, options ) { |
| 1583 | if ( ! window.JetpackSwiper ) { |
| 1584 | var loader = document.querySelector( '#jp-carousel-loading-overlay' ); |
| 1585 | domUtil.show( loader ); |
| 1586 | var jsScript = document.createElement( 'script' ); |
| 1587 | jsScript.id = 'jetpack-carousel-swiper-js'; |
| 1588 | jsScript.src = window.jetpackSwiperLibraryPath.url; |
| 1589 | jsScript.async = true; |
| 1590 | jsScript.onload = function () { |
| 1591 | domUtil.hide( loader ); |
| 1592 | openCarousel( gallery, options ); |
| 1593 | }; |
| 1594 | jsScript.onerror = function () { |
| 1595 | domUtil.hide( loader ); |
| 1596 | }; |
| 1597 | document.head.appendChild( jsScript ); |
| 1598 | return; |
| 1599 | } |
| 1600 | openCarousel( gallery, options ); |
| 1601 | } |
| 1602 | |
| 1603 | function openCarousel( gallery, options ) { |
| 1604 | var settings = { |
| 1605 | imgSelector: |
| 1606 | '.gallery-item [data-attachment-id], .tiled-gallery-item [data-attachment-id], img[data-attachment-id], img[data-id]', |
| 1607 | startIndex: 0, |
| 1608 | }; |
| 1609 | |
| 1610 | var data = domUtil.getJSONAttribute( gallery, 'data-carousel-extra' ); |
| 1611 | var tapTimeout; |
| 1612 | |
| 1613 | if ( ! data ) { |
| 1614 | return; // don't run if the default gallery functions weren't used |
| 1615 | } |
| 1616 | |
| 1617 | const images = gallery.querySelectorAll( settings.imgSelector ); |
| 1618 | if ( ! images.length ) { |
| 1619 | return; // don't run if we found no images in the gallery (somehow it has images that aren't in the media library?) |
| 1620 | } |
| 1621 | |
| 1622 | initializeCarousel(); |
| 1623 | |
| 1624 | if ( carousel.isOpen ) { |
| 1625 | return; // don't open if already opened |
| 1626 | } |
| 1627 | carousel.isOpen = true; |
| 1628 | |
| 1629 | // make sure to stop the page from scrolling behind the carousel overlay, so we don't trigger |
| 1630 | // infiniscroll for it when enabled (Reader, theme infiniscroll, etc). |
| 1631 | originalOverflow = getComputedStyle( document.body ).overflow; |
| 1632 | document.body.style.overflow = 'hidden'; |
| 1633 | // prevent html from overflowing on some of the new themes. |
| 1634 | originalHOverflow = getComputedStyle( document.documentElement ).overflow; |
| 1635 | document.documentElement.style.overflow = 'hidden'; |
| 1636 | scrollPos = window.scrollY || window.pageYOffset || 0; |
| 1637 | |
| 1638 | carousel.container.setAttribute( 'data-carousel-extra', JSON.stringify( data ) ); |
| 1639 | stat( [ 'open', 'view_image' ] ); |
| 1640 | |
| 1641 | // If options exist, lets merge them |
| 1642 | // with our default settings |
| 1643 | for ( var option in options || {} ) { |
| 1644 | settings[ option ] = options[ option ]; |
| 1645 | } |
| 1646 | |
| 1647 | if ( settings.startIndex === -1 ) { |
| 1648 | settings.startIndex = 0; // -1 returned if can't find index, so start from beginning |
| 1649 | } |
| 1650 | |
| 1651 | domUtil.emitEvent( carousel.overlay, 'jp_carousel.beforeOpen' ); |
| 1652 | carousel.gallery.innerHTML = ''; |
| 1653 | |
| 1654 | // Need to set the overlay manually to block or swiper does't initialise properly. |
| 1655 | carousel.overlay.style.opacity = 1; |
| 1656 | carousel.overlay.style.display = 'block'; |
| 1657 | |
| 1658 | initCarouselSlides( images, settings.startIndex ); |
| 1659 | |
| 1660 | swiper = new window.JetpackSwiper( '.jp-carousel-swiper-container', { |
| 1661 | centeredSlides: true, |
| 1662 | zoom: true, |
| 1663 | loop: carousel.slides.length > 1, |
| 1664 | // Turn off interactions and hide navigation arrows if there is only one slide. |
| 1665 | enabled: carousel.slides.length > 1, |
| 1666 | pagination: { |
| 1667 | el: '.jp-swiper-pagination', |
| 1668 | clickable: true, |
| 1669 | }, |
| 1670 | navigation: { |
| 1671 | nextEl: '.jp-swiper-button-next', |
| 1672 | prevEl: '.jp-swiper-button-prev', |
| 1673 | }, |
| 1674 | initialSlide: settings.startIndex, |
| 1675 | on: { |
| 1676 | init: function () { |
| 1677 | selectSlideAtIndex( settings.startIndex ); |
| 1678 | }, |
| 1679 | }, |
| 1680 | preventClicks: false, |
| 1681 | preventClicksPropagation: false, |
| 1682 | preventInteractionOnTransition: ! domUtil.isTouch(), |
| 1683 | threshold: 5, |
| 1684 | } ); |
| 1685 | |
| 1686 | swiper.on( 'slideChange', function ( swiper ) { |
| 1687 | if ( ! carousel.isOpen ) { |
| 1688 | return; |
| 1689 | } |
| 1690 | selectSlideAtIndex( swiper.realIndex ); |
| 1691 | carousel.overlay.classList.remove( 'jp-carousel-hide-controls' ); |
| 1692 | } ); |
| 1693 | |
| 1694 | swiper.on( 'zoomChange', function ( swiper, scale ) { |
| 1695 | if ( scale > 1 ) { |
| 1696 | carousel.overlay.classList.add( 'jp-carousel-hide-controls' ); |
| 1697 | } |
| 1698 | |
| 1699 | if ( scale === 1 ) { |
| 1700 | carousel.overlay.classList.remove( 'jp-carousel-hide-controls' ); |
| 1701 | } |
| 1702 | } ); |
| 1703 | |
| 1704 | swiper.on( 'doubleTap', function ( swiper ) { |
| 1705 | clearTimeout( tapTimeout ); |
| 1706 | if ( swiper.zoom.scale === 1 ) { |
| 1707 | var zoomTimeout = setTimeout( function () { |
| 1708 | carousel.overlay.classList.remove( 'jp-carousel-hide-controls' ); |
| 1709 | clearTimeout( zoomTimeout ); |
| 1710 | }, 150 ); |
| 1711 | } |
| 1712 | } ); |
| 1713 | |
| 1714 | swiper.on( 'tap', function () { |
| 1715 | if ( swiper.zoom.scale > 1 ) { |
| 1716 | tapTimeout = setTimeout( function () { |
| 1717 | carousel.overlay.classList.toggle( 'jp-carousel-hide-controls' ); |
| 1718 | }, 150 ); |
| 1719 | } |
| 1720 | } ); |
| 1721 | |
| 1722 | domUtil.fadeIn( carousel.overlay, function () { |
| 1723 | domUtil.emitEvent( carousel.overlay, 'jp_carousel.afterOpen' ); |
| 1724 | } ); |
| 1725 | } |
| 1726 | |
| 1727 | // Register the event listeners for starting the gallery |
| 1728 | document.body.addEventListener( 'click', handleInteraction ); |
| 1729 | document.body.addEventListener( 'keydown', handleInteraction ); |
| 1730 | document.querySelectorAll( galleryItemSelector + 'img' ).forEach( function ( galleryImage ) { |
| 1731 | if ( shouldOpenModal( galleryImage ) ) { |
| 1732 | makeGalleryImageAccessible( galleryImage ); |
| 1733 | } |
| 1734 | } ); |
| 1735 | |
| 1736 | function handleInteraction( e ) { |
| 1737 | if ( e.type === 'click' ) { |
| 1738 | handleClick( e ); |
| 1739 | return; |
| 1740 | } |
| 1741 | |
| 1742 | if ( e.type === 'keydown' ) { |
| 1743 | const parentElement = document.activeElement.parentElement; |
| 1744 | const isParentCarouselContainer = |
| 1745 | parentElement && parentElement.classList.contains( 'tiled-gallery__item' ); |
| 1746 | |
| 1747 | if ( ( e.key === ' ' || e.key === 'Enter' ) && isParentCarouselContainer ) { |
| 1748 | handleClick( e ); |
| 1749 | } |
| 1750 | } |
| 1751 | } |
| 1752 | |
| 1753 | function normalizeUrl( url ) { |
| 1754 | return ( url || '' ).split( '?' )[ 0 ].replace( /\/$/, '' ); |
| 1755 | } |
| 1756 | |
| 1757 | function shouldOpenModal( el ) { |
| 1758 | if ( el.tagName === 'A' ) { |
| 1759 | el = el.querySelector( 'img' ) || el; |
| 1760 | } |
| 1761 | |
| 1762 | var parent = el.parentElement; |
| 1763 | var grandparent = parent ? parent.parentElement : null; |
| 1764 | |
| 1765 | // If Gallery is made up of individual Image blocks check for custom link before |
| 1766 | // loading carousel. The custom link may be the parent or could be a descendant |
| 1767 | // of the parent if the image has rounded corners. |
| 1768 | var parentHref = null; |
| 1769 | if ( grandparent && grandparent.classList.contains( 'wp-block-image' ) ) { |
| 1770 | parentHref = parent.getAttribute( 'href' ); |
| 1771 | } else if ( |
| 1772 | parent && |
| 1773 | parent.classList.contains( 'wp-block-image' ) && |
| 1774 | parent.querySelector( ':scope > a' ) |
| 1775 | ) { |
| 1776 | parentHref = parent.querySelector( ':scope > a' ).getAttribute( 'href' ); |
| 1777 | } |
| 1778 | |
| 1779 | // If the link does not point to the attachment or media file then assume Image has |
| 1780 | // a custom link so don't load the carousel. |
| 1781 | if ( parentHref ) { |
| 1782 | var cleanHref = normalizeUrl( parentHref ); |
| 1783 | var cleanOrig = normalizeUrl( el.getAttribute( 'data-orig-file' ) ); |
| 1784 | var cleanPerm = normalizeUrl( el.getAttribute( 'data-permalink' ) ); |
| 1785 | |
| 1786 | if ( cleanHref !== cleanOrig && cleanHref !== cleanPerm ) { |
| 1787 | return false; |
| 1788 | } |
| 1789 | } |
| 1790 | |
| 1791 | // Do not open the modal if we are looking at a gallery caption from before WP5, which may contain a link. |
| 1792 | if ( parent && parent.classList.contains( 'gallery-caption' ) ) { |
| 1793 | return false; |
| 1794 | } |
| 1795 | |
| 1796 | // Do not open the modal if we are looking at a caption of a gallery block, which may contain a link. |
| 1797 | if ( domUtil.matches( parent, 'figcaption' ) ) { |
| 1798 | return false; |
| 1799 | } |
| 1800 | |
| 1801 | return true; |
| 1802 | } |
| 1803 | |
| 1804 | function handleClick( e ) { |
| 1805 | var isCompatible = |
| 1806 | window.CSS && window.CSS.supports && window.CSS.supports( 'display', 'grid' ); |
| 1807 | |
| 1808 | // IE11 support is being dropped in August 2021. The new swiper.js libray is not IE11 compat |
| 1809 | // so just default to opening individual image attachment/media pages for IE. |
| 1810 | if ( ! isCompatible ) { |
| 1811 | return; |
| 1812 | } |
| 1813 | |
| 1814 | var target = e.target; |
| 1815 | var gallery = domUtil.closest( target, gallerySelector ); |
| 1816 | |
| 1817 | if ( gallery ) { |
| 1818 | if ( ! testForData( gallery ) ) { |
| 1819 | return; |
| 1820 | } |
| 1821 | |
| 1822 | if ( ! shouldOpenModal( target ) ) { |
| 1823 | return; |
| 1824 | } |
| 1825 | |
| 1826 | // Set height to auto. |
| 1827 | // Fix some themes where closing carousel brings view back to top. |
| 1828 | document.documentElement.style.height = 'auto'; |
| 1829 | |
| 1830 | e.preventDefault(); |
| 1831 | |
| 1832 | // Stopping propagation in case there are parent elements |
| 1833 | // with .gallery or .tiled-gallery class |
| 1834 | e.stopPropagation(); |
| 1835 | |
| 1836 | var item = domUtil.closest( target, itemSelector ); |
| 1837 | var index = Array.prototype.indexOf.call( gallery.querySelectorAll( itemSelector ), item ); |
| 1838 | loadSwiper( gallery, { startIndex: index } ); |
| 1839 | } |
| 1840 | } |
| 1841 | |
| 1842 | // Handle lightbox (single image gallery) for images linking to 'Attachment Page'. |
| 1843 | if ( Number( jetpackCarouselStrings.single_image_gallery ) === 1 ) { |
| 1844 | processSingleImageGallery(); |
| 1845 | document.body.addEventListener( 'is.post-load', function () { |
| 1846 | processSingleImageGallery(); |
| 1847 | } ); |
| 1848 | } |
| 1849 | |
| 1850 | // Makes carousel work on page load and when back button leads to same URL with carousel hash |
| 1851 | // (i.e. no actual document.ready trigger). |
| 1852 | window.addEventListener( 'hashchange', function () { |
| 1853 | var hashRegExp = /jp-carousel-(\d+)/; |
| 1854 | |
| 1855 | if ( ! window.location.hash || ! hashRegExp.test( window.location.hash ) ) { |
| 1856 | if ( carousel.isOpen ) { |
| 1857 | closeCarousel(); |
| 1858 | } |
| 1859 | |
| 1860 | return; |
| 1861 | } |
| 1862 | |
| 1863 | if ( window.location.hash === lastKnownLocationHash && carousel.isOpen ) { |
| 1864 | return; |
| 1865 | } |
| 1866 | |
| 1867 | if ( window.location.hash && carousel.gallery && ! carousel.isOpen && history.back ) { |
| 1868 | history.back(); |
| 1869 | return; |
| 1870 | } |
| 1871 | |
| 1872 | lastKnownLocationHash = window.location.hash; |
| 1873 | var matchList = window.location.hash.match( hashRegExp ); |
| 1874 | var attachmentId = parseInt( matchList[ 1 ], 10 ); |
| 1875 | var galleries = document.querySelectorAll( gallerySelector ); |
| 1876 | |
| 1877 | // Find the first thumbnail that matches the attachment ID in the location |
| 1878 | // hash, then open the gallery that contains it. |
| 1879 | for ( var i = 0; i < galleries.length; i++ ) { |
| 1880 | var gallery = galleries[ i ]; |
| 1881 | var selected; |
| 1882 | |
| 1883 | var images = gallery.querySelectorAll( 'img' ); |
| 1884 | for ( var j = 0; j < images.length; j++ ) { |
| 1885 | if ( |
| 1886 | parseInt( images[ j ].getAttribute( 'data-attachment-id' ), 10 ) === attachmentId || |
| 1887 | parseInt( images[ j ].getAttribute( 'data-id' ), 10 ) === attachmentId |
| 1888 | ) { |
| 1889 | selected = j; |
| 1890 | break; |
| 1891 | } |
| 1892 | } |
| 1893 | |
| 1894 | if ( selected !== undefined ) { |
| 1895 | openOrSelectSlide( gallery, selected ); |
| 1896 | break; |
| 1897 | } |
| 1898 | } |
| 1899 | } ); |
| 1900 | |
| 1901 | if ( window.location.hash ) { |
| 1902 | domUtil.emitEvent( window, 'hashchange' ); |
| 1903 | } |
| 1904 | } |
| 1905 | |
| 1906 | if ( document.readyState !== 'loading' ) { |
| 1907 | init(); |
| 1908 | } else { |
| 1909 | document.addEventListener( 'DOMContentLoaded', init ); |
| 1910 | } |
| 1911 | } )(); |
| 1912 |