1/* global wpcom_reblog */ 2 3var jetpackLikesWidgetBatch = []; 4var jetpackLikesMasterReady = false; 5 6// Due to performance problems on pages with a large number of widget iframes that need to be loaded, 7// we are limiting the processing at any instant to unloaded widgets that are currently in viewport, 8// plus this constant that will allow processing of widgets above and bellow the current fold. 9// This aim of it is to improve the UX and hide the transition from unloaded to loaded state from users. 10var jetpackLikesLookAhead = 2000; // pixels 11 12// Keeps track of loaded comment likes widget so we can unload them when they are scrolled out of view. 13var jetpackCommentLikesLoadedWidgets = []; 14 15var jetpackLikesDocReadyPromise = new Promise( resolve => { 16 if ( document.readyState !== 'loading' ) { 17 resolve(); 18 } else { 19 window.addEventListener( 'DOMContentLoaded', () => resolve() ); 20 } 21} ); 22 23function JetpackLikesPostMessage( message, target ) { 24 if ( typeof message === 'string' ) { 25 try { 26 message = JSON.parse( message ); 27 } catch ( e ) { 28 return; 29 } 30 } 31 32 if ( target && typeof target.postMessage === 'function' ) { 33 try { 34 target.postMessage( 35 JSON.stringify( { 36 type: 'likesMessage', 37 data: message, 38 } ), 39 '*' 40 ); 41 } catch ( e ) { 42 return; 43 } 44 } 45} 46 47function JetpackLikesBatchHandler() { 48 const requests = []; 49 document.querySelectorAll( 'div.jetpack-likes-widget-unloaded' ).forEach( widget => { 50 if ( jetpackLikesWidgetBatch.indexOf( widget.id ) > -1 ) { 51 return; 52 } 53 54 if ( ! jetpackIsScrolledIntoView( widget ) ) { 55 return; 56 } 57 58 jetpackLikesWidgetBatch.push( widget.id ); 59 60 var regex = /like-(post|comment)-wrapper-(\d+)-(\d+)-(\w+)/, 61 match = regex.exec( widget.id ), 62 info; 63 64 if ( ! match || match.length !== 5 ) { 65 return; 66 } 67 68 info = { 69 blog_id: match[ 2 ], 70 width: widget.width, 71 }; 72 73 if ( 'post' === match[ 1 ] ) { 74 info.post_id = match[ 3 ]; 75 } else if ( 'comment' === match[ 1 ] ) { 76 info.comment_id = match[ 3 ]; 77 } 78 79 info.obj_id = match[ 4 ]; 80 81 requests.push( info ); 82 } ); 83 84 if ( requests.length > 0 ) { 85 JetpackLikesPostMessage( 86 { event: 'initialBatch', requests: requests }, 87 window.frames[ 'likes-master' ] 88 ); 89 } 90} 91 92function JetpackLikesMessageListener( event ) { 93 let message = event && event.data; 94 if ( typeof message === 'string' ) { 95 try { 96 message = JSON.parse( message ); 97 } catch ( err ) { 98 return; 99 } 100 } 101 102 const type = message && message.type; 103 const data = message && message.data; 104 105 if ( type !== 'likesMessage' || typeof data.event === 'undefined' ) { 106 return; 107 } 108 109 // We only allow messages from one origin 110 const allowedOrigin = 'https://widgets.wp.com'; 111 if ( allowedOrigin !== event.origin ) { 112 return; 113 } 114 115 switch ( data.event ) { 116 case 'masterReady': 117 jetpackLikesDocReadyPromise.then( () => { 118 jetpackLikesMasterReady = true; 119 120 const stylesData = { 121 event: 'injectStyles', 122 }; 123 const sdTextColor = document.querySelector( '.sd-text-color' ); 124 const sdLinkColor = document.querySelector( '.sd-link-color' ); 125 const sdTextColorStyles = ( sdTextColor && getComputedStyle( sdTextColor ) ) || {}; 126 const sdLinkColorStyles = ( sdLinkColor && getComputedStyle( sdLinkColor ) ) || {}; 127 128 // enable reblogs if they are enabled for the page 129 if ( document.body.classList.contains( 'jetpack-reblog-enabled' ) ) { 130 JetpackLikesPostMessage( { event: 'reblogsEnabled' }, window.frames[ 'likes-master' ] ); 131 } 132 133 stylesData.textStyles = { 134 color: sdTextColorStyles[ 'color' ],
135 fontFamily: sdTextColorStyles[ 'font-family' ], 136 fontSize: sdTextColorStyles[ 'font-size' ], 137 direction: sdTextColorStyles[ 'direction' ], 138 fontWeight: sdTextColorStyles[ 'font-weight' ], 139 fontStyle: sdTextColorStyles[ 'font-style' ], 140 textDecoration: sdTextColorStyles[ 'text-decoration' ], 141 }; 142 143 stylesData.linkStyles = { 144 color: sdLinkColorStyles[ 'color' ], 145 fontFamily: sdLinkColorStyles[ 'font-family' ], 146 fontSize: sdLinkColorStyles[ 'font-size' ], 147 textDecoration: sdLinkColorStyles[ 'text-decoration' ], 148 fontWeight: sdLinkColorStyles[ 'font-weight' ], 149 fontStyle: sdLinkColorStyles[ 'font-style' ], 150 }; 151 152 JetpackLikesPostMessage( stylesData, window.frames[ 'likes-master' ] ); 153 154 JetpackLikesBatchHandler(); 155 } ); 156 157 break; 158 159 // We're keeping this for planned future follow ups. 160 // @see: https://github.com/Automattic/jetpack/pull/42361#discussion_r1995338815 161 case 'showLikeWidget': 162 break; 163 164 // We're keeping this for planned future follow ups. 165 // @see: https://github.com/Automattic/jetpack/pull/42361#discussion_r1995338815 166 case 'showCommentLikeWidget': 167 break; 168 169 case 'killCommentLikes': 170 // If kill switch for comment likes is enabled remove all widgets wrappers and `Loading...` placeholders. 171 document 172 .querySelectorAll( '.jetpack-comment-likes-widget-wrapper' ) 173 .forEach( wrapper => wrapper.remove() ); 174 break; 175 176 case 'clickReblogFlair': 177 if ( wpcom_reblog && typeof wpcom_reblog.toggle_reblog_box_flair === 'function' ) { 178 wpcom_reblog.toggle_reblog_box_flair( data.obj_id, data.post_id ); 179 } 180 break; 181 182 case 'hideOtherGravatars': { 183 hideLikersPopover(); 184 break; 185 } 186 187 case 'showOtherGravatars': { 188 const container = document.querySelector( '#likes-other-gravatars' ); 189 190 if ( ! container ) { 191 break; 192 } 193 194 const list = container.querySelector( 'ul' ); 195 196 container.style.display = 'none'; 197 list.innerHTML = ''; 198 199 container 200 .querySelectorAll( '.likes-text span' ) 201 .forEach( item => ( item.textContent = data.totalLikesLabel ) ); 202 203 ( data.likers || [] ).forEach( async ( liker, index ) => { 204 if ( liker.profile_URL.substr( 0, 4 ) !== 'http' ) { 205 // We only display gravatars with http or https schema 206 return; 207 } 208 209 const element = document.createElement( 'li' ); 210 list.append( element ); 211 212 element.innerHTML = ` 213 <a href="${ encodeURI( liker.profile_URL ) }" rel="nofollow" target="_parent" class="wpl-liker"> 214 <img src="${ encodeURI( liker.avatar_URL ) }" 215 alt="" 216 style="width: 28px; height: 28px;" /> 217 <span></span> 218 </a> 219 `; 220 221 222 // Add some extra attributes through native methods, to ensure strings are sanitized. 223 element.classList.add( liker.css_class ); 224 element.querySelector( 'img' ).alt = data.avatarAltTitle.replace( '%s', liker.name ); 225 element.querySelector( 'span' ).innerText = liker.name; 226 227 if ( index === data.likers.length - 1 ) { 228 element.addEventListener( 'keydown', ( e ) => { 229 if ( e.key === 'Tab' && ! e.shiftKey ) { 230 e.preventDefault(); 231 hideLikersPopover(); 232 233 JetpackLikesPostMessage( 234 { event: 'focusLikesCount', parent: data.parent }, 235 window.frames[ 'likes-master' ] 236 ); 237 } 238 } ); 239 } 240 } ); 241 242 const positionPopup = function() { 243 const containerStyle = getComputedStyle(container); 244 const isRtl = containerStyle.direction === 'rtl'; 245 246 const el = document.querySelector( `*[name='${ data.parent }']` ); 247 const rect = el.getBoundingClientRect(); 248 const win = el.ownerDocument.defaultView; 249 250 const offset = { 251 top: rect.top + win.pageYOffset, 252 left: rect.left + win.pageXOffset, 253 }; 254 255 // don't display yet or we get skewed window.innerWidth later 256 container.style.display = 'none'; 257 258 let containerLeft = 0; 259 container.style.top = offset.top + data.position.top - 1 + 'px'; 260 261 if ( isRtl ) { 262 const visibleAvatarsCount = data && data.likers ? Math.min( data.likers.length, 5 ) : 0; 263 // 24px is the width of the avatar + 4px is the padding between avatars 264 containerLeft = offset.left + data.position.left + 24 * visibleAvatarsCount + 4; 265 container.style.transform = 'translateX(-100%)'; 266 } else { 267 containerLeft = offset.left + data.position.left; 268 } 269 container.style.left = containerLeft + 'px'; 270 271 // Container width - padding
272 const initContainerWidth = data.width - 20; 273 const rowLength = Math.floor( initContainerWidth / 37 ); 274 // # of rows + (avatar + avatar padding) + text above + container padding 275 let height = Math.ceil( data.likers.length / rowLength ) * 37 + 17 + 22; 276 if ( height > 204 ) { 277 height = 204; 278 } 279 280 // If the popup is overflows viewport width, we should show it on the next line 281 // Push it offscreen to calculated rendered width 282 const windowWidth = win.innerWidth; 283 container.style.left = '-9999px'; 284 container.style.display = 'block'; 285 286 // If the popup exceeds the viewport width, 287 // flip the position of the popup. 288 const containerWidth = container.offsetWidth; 289 const containerRight = containerLeft + containerWidth; 290 291 if ( containerRight > windowWidth && ! isRtl) { 292 containerLeft = rect.left + rect.width - containerWidth; 293 } else if ( containerLeft - containerWidth < 0 && isRtl ) { 294 container.style.transform = 'none'; 295 containerLeft = rect.left; 296 } 297 // Set the container left 298 container.style.left = containerLeft + 'px'; 299 300 container.setAttribute( 'aria-hidden', 'false' ); 301 } 302 303 positionPopup(); 304 container.focus(); 305 306 const debounce = function( func, wait ) { 307 var timeout; 308 return function() { 309 var context = this; 310 var args = arguments; 311 clearTimeout( timeout ); 312 timeout = setTimeout( function() { 313 func.apply( context, args ); 314 }, wait ); 315 }; 316 }; 317 318 const debouncedPositionPopup = debounce( positionPopup, 100 ); 319 320 // Keep a reference of this function in the element itself 321 // so that we can destroy it later 322 container.__resizeHandler = debouncedPositionPopup; 323 324 // When window is resized, resize the popup. 325 window.addEventListener( "resize", debouncedPositionPopup ); 326 } 327 } 328} 329 330window.addEventListener( 'message', JetpackLikesMessageListener ); 331 332function hideLikersPopover() { 333 const container = document.querySelector( '#likes-other-gravatars' ); 334 335 if ( container ) { 336 container.style.display = 'none'; 337 container.setAttribute( 'aria-hidden', 'true' ); 338 339 // Remove the resize event listener and cleanup. 340 const resizeHandler = container.__resizeHandler; 341 if ( resizeHandler ) { 342 window.removeEventListener( "resize", resizeHandler ); 343 delete container.__resizeHandler; 344 } 345 } 346} 347 348document.addEventListener( 'click', hideLikersPopover ); 349 350function JetpackLikesWidgetQueueHandler() { 351 var wrapperID; 352 353 if ( ! jetpackLikesMasterReady ) { 354 setTimeout( JetpackLikesWidgetQueueHandler, 500 ); 355 return; 356 } 357 358 // Restore widgets to initial unloaded state when they are scrolled out of view. 359 jetpackUnloadScrolledOutWidgets(); 360 361 var unloadedWidgetsInView = jetpackGetUnloadedWidgetsInView(); 362 363 if ( unloadedWidgetsInView.length > 0 ) { 364 // Grab any unloaded widgets for a batch request 365 JetpackLikesBatchHandler(); 366 } 367 368 for ( var i = 0, length = unloadedWidgetsInView.length; i <= length - 1; i++ ) { 369 wrapperID = unloadedWidgetsInView[ i ].id; 370 371 if ( ! wrapperID ) { 372 continue; 373 } 374 375 jetpackLoadLikeWidgetIframe( wrapperID ); 376 } 377} 378 379function jetpackLoadLikeWidgetIframe( wrapperID ) { 380 if ( typeof wrapperID === 'undefined' ) { 381 return; 382 } 383 384 const wrapper = document.querySelector( '#' + wrapperID ); 385 wrapper.querySelectorAll( 'iframe' ).forEach( iFrame => iFrame.remove() ); 386 387 const placeholder = wrapper.querySelector( '.likes-widget-placeholder' ); 388 389 // Post like iframe 390 if ( placeholder && placeholder.classList.contains( 'post-likes-widget-placeholder' ) ) { 391 const postLikesFrame = document.createElement( 'iframe' ); 392 393 postLikesFrame.classList.add( 'post-likes-widget', 'jetpack-likes-widget' ); 394 postLikesFrame.name = wrapper.dataset.name; 395 postLikesFrame.src = wrapper.dataset.src; 396 postLikesFrame.height = '55px'; 397 postLikesFrame.width = '100%'; 398 postLikesFrame.frameBorder = '0'; 399 postLikesFrame.scrolling = 'no'; 400 postLikesFrame.title = wrapper.dataset.title; 401 402 placeholder.after( postLikesFrame ); 403 } 404 405 // Comment like iframe 406 if ( placeholder.classList.contains( 'comment-likes-widget-placeholder' ) ) { 407 const commentLikesFrame = document.createElement( 'iframe' ); 408 409 commentLikesFrame.class = 'comment-likes-widget-frame jetpack-likes-widget-frame'; 410 commentLikesFrame.name = wrapper.dataset.name; 411 commentLikesFrame.src = wrapper.dataset.src; 412 commentLikesFrame.height = '18px'; 413 commentLikesFrame.width = '100%'; 414 commentLikesFrame.frameBorder = '0'; 415 commentLikesFrame.scrolling = 'no'; 416 417 wrapper.querySelector( '.comment-like-feedback' ).after( commentLikesFrame ); 418 419 jetpackCommentLikesLoadedWidgets.push( commentLikesFrame ); 420 } 421 422 wrapper.classList.remove( 'jetpack-likes-widget-unloaded' ); 423 wrapper.classList.add( 'jetpack-likes-widget-loading' ); 424 425 wrapper.querySelector( 'iframe' ).addEventListener( 'load', e => { 426 JetpackLikesPostMessage( 427 { event: 'loadLikeWidget', name: e.target.name, width: e.target.width }, 428 window.frames[ 'likes-master' ] 429 ); 430 431 wrapper.classList.remove( 'jetpack-likes-widget-loading' ); 432 wrapper.classList.add( 'jetpack-likes-widget-loaded' ); 433 } ); 434} 435 436function jetpackGetUnloadedWidgetsInView() { 437 const unloadedWidgets = document.querySelectorAll( 'div.jetpack-likes-widget-unloaded' ); 438 439 return [ ...unloadedWidgets ].filter( item => jetpackIsScrolledIntoView( item ) ); 440} 441 442function jetpackIsScrolledIntoView( element ) { 443 const top = element.getBoundingClientRect().top; 444 const bottom = element.getBoundingClientRect().bottom; 445
446 // Allow some slack above and bellow the fold with jetpackLikesLookAhead, 447 // with the aim of hiding the transition from unloaded to loaded widget from users. 448 return top + jetpackLikesLookAhead >= 0 && bottom <= window.innerHeight + jetpackLikesLookAhead; 449} 450 451function jetpackUnloadScrolledOutWidgets() { 452 for ( let i = jetpackCommentLikesLoadedWidgets.length - 1; i >= 0; i-- ) { 453 const currentWidgetIframe = jetpackCommentLikesLoadedWidgets[ i ]; 454 455 if ( ! jetpackIsScrolledIntoView( currentWidgetIframe ) ) { 456 const widgetWrapper = 457 currentWidgetIframe && 458 currentWidgetIframe.parentElement && 459 currentWidgetIframe.parentElement.parentElement; 460 461 // Restore parent class to 'unloaded' so this widget can be picked up by queue manager again if needed. 462 widgetWrapper.classList.remove( 'jetpack-likes-widget-loaded' ); 463 widgetWrapper.classList.remove( 'jetpack-likes-widget-loading' ); 464 widgetWrapper.classList.add( 'jetpack-likes-widget-unloaded' ); 465 466 // Bring back the loading placeholder into view. 467 widgetWrapper 468 .querySelectorAll( '.comment-likes-widget-placeholder' ) 469 .forEach( item => ( item.style.display = 'block' ) ); 470 471 // Remove it from the list of loaded widgets. 472 jetpackCommentLikesLoadedWidgets.splice( i, 1 ); 473 474 // Remove comment like widget iFrame. 475 currentWidgetIframe.remove(); 476 } 477 } 478} 479 480var jetpackWidgetsDelayedExec = function ( after, fn ) { 481 var timer; 482 return function () { 483 clearTimeout( timer ); 484 timer = setTimeout( fn, after ); 485 }; 486}; 487 488var jetpackOnScrollStopped = jetpackWidgetsDelayedExec( 250, JetpackLikesWidgetQueueHandler ); 489 490// Load initial batch of widgets, prior to any scrolling events. 491JetpackLikesWidgetQueueHandler(); 492 493// Add event listener to execute queue handler after scroll. 494window.addEventListener( 'scroll', jetpackOnScrollStopped, true ); 495; 496!function(){"use strict";var e,t={noop:function(){},texturize:function(e){return(e=(e=(e=(e+="").replace(/'/g,"’").replace(/'/g,"’")).replace(/"/g,"”").replace(/"/g,"”").replace(/"/g,"”").replace(/[\u201D]/g,"”")).replace(/([\w]+)=&#[\d]+;(.+?)&#[\d]+;/g,'$1="$2"')).trim()},applyReplacements:function(e,t){if(e)return t?e.replace(/{(\d+)}/g,function(e,r){return void 0!==t[r]?t[r]:e}):e},getBackgroundImage:function(e){var t=document.createElement("canvas"),r=t.getContext&&t.getContext("2d");if(e){r.filter="blur(20px) ",r.drawImage(e,0,0);var o=t.toDataURL("image/png");return t=null,o}}},r=function(){function e(e,t){return Element.prototype.matches?e.matches(t):Element.prototype.msMatchesSelector?e.msMatchesSelector(t):void 0}function r(e,t,r,o){if(!e)return o();e.jpCarouselCancelFade&&e.jpCarouselCancelFade(),e.classList.remove("jp-carousel-fade"),e.style.removeProperty("display"),e.style.opacity=t,e.style.pointerEvents="none",e.offsetWidth,e.classList.add("jp-carousel-fade"),e.style.opacity=r;var a=1e3*parseFloat(getComputedStyle(e).transitionDuration)||0,n=setTimeout(function(){e.jpCarouselCancelFade=null,e.style.removeProperty("pointer-events"),o()},a+50);e.jpCarouselCancelFade=function(){clearTimeout(n),e.jpCarouselCancelFade=null}}return{closest:function(t,r){if(t.closest)return t.closest(r);var o=t;do{if(e(o,r))return o;o=o.parentElement||o.parentNode}while(null!==o&&1===o.nodeType);return null},matches:e,hide:function(e){e&&(e.style.display="none")},show:function(e){e&&(e.style.display="block")},fadeIn:function(e,o){r(e,0,1,o=o||t.noop)},fadeOut:function(e,o){o=o||t.noop,r(e,1,0,function(){e&&(e.style.display="none"),o()})},scrollToElement:function(e,t,r){if(!e||!t)return r?r():void 0;var o=t.querySelector(".jp-carousel-info-extra");o&&(o.style.minHeight=window.innerHeight-64+"px");var a=!0,n=Date.now(),i=t.scrollTop,l=Math.max(0,e.offsetTop-Math.max(0,window.innerHeight-function(e){var t=e.querySelector(".jp-carousel-info-footer"),r=e.querySelector(".jp-carousel-info-extra"),o=e.querySelector(".jp-carousel-info-content-wrapper");if(t&&r&&o){var a=window.getComputedStyle(r),n=parseInt(a.paddingTop,10)+parseInt(a.paddingBottom,10);return n=isNaN(n)?0:n,o.offsetHeight+t.offsetHeight+n}return 0}(t)))-t.scrollTop;function s(){a=!1}
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497/** 498 * Comment Likes - JavaScript 499 * 500 * This handles liking and unliking comments, as well as viewing who has 501 * liked a particular comment. 502 * 503 * @dependency Swipe (dynamically loaded when needed) 504 * 505 * @package Comment_Likes 506 * @subpackage JavaScript 507 */ 508(function () { 509 function init() { 510 let extWin; 511 let extWinCheck; 512 let commentLikeEvent; 513 514 // Only run once. 515 if (window.comment_likes_loaded) { 516 return; 517 } 518 window.comment_likes_loaded = true; 519 520 // Client-side cache of who liked a particular comment to avoid 521 // having to hit the server multiple times for the same data. 522 const commentLikeCache = {}; 523 524 let swipeLibPromise; 525 526 // Load the Swipe library, if it's not already loaded. 527 function swipeLibLoader() { 528 if (!swipeLibPromise) { 529 swipeLibPromise = new Promise((resolve, reject) => { 530 if (window.Swipe) { 531 resolve(window.Swipe); 532 } else { 533 const swipeScript = document.createElement('script'); 534 swipeScript.src = comment_like_text.swipeUrl; 535 swipeScript.async = true; 536 document.body.appendChild(swipeScript); 537 swipeScript.addEventListener('load', () => resolve(window.Swipe)); 538 swipeScript.addEventListener('error', error => reject(error)); 539 } 540 }); 541 } 542 return swipeLibPromise; 543 } 544 545 /** 546 * Parse the comment ID from a comment like link. 547 */ 548 function getCommentId(link) { 549 const commentId = 550 link && link.getAttribute('href') && link.getAttribute('href').split('like_comment='); 551 return commentId[1].split('&_wpnonce=')[0]; 552 } 553 554 /** 555 * Handle an ajax action on the comment like link. 556 */ 557 function handleLinkAction(link, action, commentId, callback) { 558 const nonce = 559 link && link.getAttribute('href') && link.getAttribute('href').split('_wpnonce=')[1]; 560 561 fetch('/wp-admin/admin-ajax.php', { 562 method: 'POST', 563 body: new URLSearchParams({ 564 action: action, 565 _wpnonce: nonce, 566 like_comment: commentId, 567 blog_id: Number(link.dataset.blog), 568 }), 569 headers: { 570 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8', 571 'X-Requested-With': 'XMLHttpRequest', 572 Accept: 'application/json', 573 'cache-control': 'no-cache', 574 pragma: 'no-cache', 575 }, 576 }) 577 .then(response => response.json()) 578 .then(callback); 579 } 580 581 function startPolling() { 582 // Append cookie polling login iframe to this window to wait for user to finish logging in (or cancel) 583 const loginIframe = document.createElement('iframe'); 584 loginIframe.id = 'wp-login-polling-iframe'; 585 loginIframe.src = 'https://wordpress.com/public.api/connect/?iframe=true'; 586 document.body.appendChild(loginIframe); 587 loginIframe.style.display = 'none'; 588 } 589 590 function stopPolling() { 591 const iframe = document.querySelector('#wp-login-polling-iframe'); 592 if (iframe) { 593 iframe.remove(); 594 } 595 } 596 597 function hide(el) { 598 if (el && el.style) { 599 el.style.display = 'none'; 600 } 601 } 602 603 function show(el) { 604 if (el && el.style) { 605 el.style.removeProperty('display'); 606 } 607 } 608 609 // Overlay used for displaying comment like info. 610 class Overlay { 611 constructor() { 612 // Overlay element. 613 this.el = document.createElement('div'); 614 this.el.classList.add('comment-likes-overlay'); 615 document.body.appendChild(this.el); 616 hide(this.el); 617 618 this.el.addEventListener('mouseenter', () => { 619 // Don't hide the overlay if the user is mousing over it. 620 overlay.cancelHide(); 621 }); 622 623 this.el.addEventListener('mouseleave', () => overlay.requestHide()); 624 625 // Inner contents of overlay. 626 this.innerEl = null; 627 628 // Instance of the Swipe library. 629 this.swipe = null; 630 631 // Timeout used for hiding the overlay. 632 this.hideTimeout = null; 633 } 634 635 // Initialise the overlay for use, removing any old content. 636 clear() { 637 // Unload any previous instance of Swipe (to avoid leaking a global 638 // event handler). This is done before clearing the contents of the 639 // overlay because Swipe expects the slides to still be present. 640 if (this.swipe) { 641 this.swipe.kill(); 642 this.swipe = null; 643 } 644 this.el.innerHTML = ''; 645 this.innerEl = document.createElement('div'); 646 this.innerEl.classList.add('inner'); 647 this.el.appendChild(this.innerEl); 648 } 649 650 /** 651 * Construct a list (<ul>) of user (gravatar, name) details. 652 * 653 * @param data liker data returned from the server 654 * @param klass CSS class to apply to the <ul> element 655 * @param start index of user to start at 656 * @param length number of users to include in the list 657 * 658 * @return A container element with the list 659 */ 660 getUserBits(data, klass, start, length) { 661 start = start || 0; 662 let last = start + (length || data.length); 663 last = last > data.length ? data.length : last; 664 const container = document.createElement('div'); 665 container.classList.add('liker-list'); 666 let html = `<ul class="${klass || ''}">`; 667 for (let i = start; i < last; ++i) { 668 const user = data[i]; 669 html += ` 670 <li> 671 <a rel="nofollow" title="${user.display_name_esc}" href="${user.profile_url_esc}"> 672 <img src="${user.avatar_url_esc}" alt="${user.display_name_esc}" /> 673 <span class="user-name">${user.display_name_esc}</span> 674 </a> 675 </li> 676 `; 677 } 678 html += '</ul>'; 679 container.innerHTML = html; 680 return container; 681 } 682 683 /** 684 * Render the display of who has liked this comment. The type of 685 * display depends on how many people have liked the comment. 686 * If more than 10 people have liked the comment, this function 687 * renders navigation controls and sets up the Swipe library for 688 * changing between pages. 689 * 690 * @param link the element over which the user is hovering 691 * @param data the results retrieved from the server 692 */ 693 showLikes(link, data) { 694 this.clear(); 695 696 link.dataset.likeCount = data.length; 697 if (data.length === 0) { 698 // No likers after all. 699 hide(this.el); 700 return; 701 } 702 703 this.innerEl.style.padding = '12px'; 704 705 if (data.length < 6) { 706 // Only one column needed. 707 this.innerEl.style.maxWidth = '200px'; 708 this.innerEl.innerHTML = ''; 709 this.innerEl.appendChild(this.getUserBits(data, 'single')); 710 this.setPosition(link); 711 } else if (data.length < 11) { 712 // Two columns, but only one page. 713 this.innerEl.innerHTML = ''; 714 this.innerEl.appendChild(this.getUserBits(data, 'double')); 715 this.setPosition(link); 716 } else { 717 // Multiple pages. 718 this.renderLikesWithPagination(data, link); 719 } 720 } 721 722 /**
723 * Render multiple pages of likes with pagination controls. 724 * This function is intended to be called by `showLikes` above. 725 * 726 * @param data the results retrieved from the server 727 */ 728 renderLikesWithPagination(data, link) { 729 swipeLibLoader().then(() => { 730 const page_count = Math.ceil(data.length / 10); 731 // Swipe requires two nested containers. 732 const swipe = document.createElement('div'); 733 swipe.classList.add('swipe'); 734 this.innerEl.appendChild(swipe); 735 736 const wrap = document.createElement('div'); 737 wrap.classList.add('swipe-wrap'); 738 swipe.appendChild(wrap); 739 740 for (let i = 0; i < page_count; ++i) { 741 wrap.appendChild(this.getUserBits(data, 'double', i * 10, 10)); 742 } 743 744 /** 745 * Navigation controls. 746 * This is based on the Newdash controls found in 747 * reader/recommendations-templates.php 748 */ 749 const nav = document.createElement('nav'); 750 nav.classList.add('slider-nav'); 751 752 let navContents = ` 753 <a href="#" class="prev"> 754 <span class="noticon noticon-previous" title="Previous" alt="<"></span> 755 </a> 756 <span class="position"> 757 `; 758 for (let i = 0; i < page_count; ++i) { 759 navContents += `<em data-page="${i}" class="${i === 0 ? 'on' : ''}">•</em>`; 760 } 761 navContents += ` 762 </span> 763 <a href="#" class="next"> 764 <span class="noticon noticon-next" title="Next" alt=">"></span> 765 </a> 766 `; 767 this.innerEl.appendChild(nav); 768 nav.innerHTML = navContents; 769 770 /** Set up Swipe. **/ 771 // Swipe cannot be set up successfully unless its container 772 // is visible, so we show it now. 773 show(this.el); 774 this.setPosition(link); 775 776 this.swipe = new Swipe(swipe, { 777 callback: function (pos) { 778 // Update the pagination indicators. 779 // 780 // If there are exactly two pages, Swipe has a weird 781 // special case where it duplicates both pages and 782 // can return index 2 and 3 even though those aren't 783 // real pages (see swipe.js, line 47). To deal with 784 // this, we use the expression `pos % page_count`. 785 pos = pos % page_count; 786 nav.querySelectorAll('em').forEach(em => { 787 const page = Number(em.dataset.page); 788 em.setAttribute('class', pos === page ? 'on' : ''); 789 }); 790 }, 791 }); 792 793 nav.querySelectorAll('em').forEach(em => { 794 em.addEventListener('click', e => { 795 // Go to the page corresponding to the indicator clicked. 796 this.swipe.slide(Number(em.dataset.page)); 797 e.preventDefault(); 798 }); 799 }); 800 // Previous and next buttons. 801 nav.querySelector('.prev').addEventListener('click', e => { 802 this.swipe.prev(); 803 e.preventDefault(); 804 }); 805 nav.querySelector('.next').addEventListener('click', e => { 806 this.swipe.next(); 807 e.preventDefault(); 808 }); 809 }); 810 } 811 812 /** 813 * Open the overlay and show a loading message. 814 */ 815 showLoadingMessage(link) { 816 this.clear(); 817 this.innerEl.textContent = comment_like_text.loading; 818 this.setPosition(link); 819 } 820 821 /** 822 * Position the overlay near the current comment. 823 * 824 * @param link element near which to position the overlay 825 */ 826 setPosition(link) { 827 // Prepare a down arrow icon for the bottom of the overlay. 828 const icon = document.createElement('span'); 829 this.el.appendChild(icon); 830 icon.classList.add('icon', 'noticon', 'noticon-downarrow'); 831 icon.style.textShadow = '0px 1px 1px rgb(223, 223, 223)'; 832 833 const rect = link.getBoundingClientRect(); 834 const win = document.defaultView; 835 const offset = { 836 top: rect.top + win.scrollY, 837 left: rect.left + win.scrollX, 838 }; 839 840 // Take measurements with the element fully visible. 841 show(this.el); 842 let left = offset.left - (this.el.offsetWidth - link.offsetWidth) / 2; 843 left = left < 5 ? 5 : left; 844 let top = offset.top - this.el.offsetHeight + 5; 845 hide(this.el); 846 847 const adminBar = document.querySelector('#wpadminbar'); 848 849 // Check if the overlay would appear off the screen. 850 if (top < win.scrollY + ((adminBar && adminBar.offsetHeight) || 0)) { 851 // We'll display the overlay beneath the link instead. 852 top = offset.top + link.offsetHeight; 853 // Instead of using the down arrow icon, use an up arrow. 854 icon.remove(); 855 this.el.prepend(icon); 856 icon.classList.remove('noticon-downarrow'); 857 icon.classList.add('noticon-uparrow'); 858 icon.style.textShadow = '0px -1px 1px rgb(223, 223, 223)'; 859 icon.style.verticalAlign = 'bottom'; 860 } 861 862 this.el.style.left = `${left}px`; 863 this.el.style.top = `${top}px`; 864 show(this.el); 865 866 // The height of the arrow icon differs slightly between browsers, 867 // so we compute the margin here to make sure it isn't disjointed 868 // from the overlay. 869 icon.style.marginTop = `${icon.scrollHeight - 26}px`; 870 icon.style.marginBottom = `${20 - icon.scrollHeight}px`; 871 872 // Position the arrow to be horizontally centred on the link. 873 icon.style.paddingLeft = `${ 874 offset.left - left + (link.offsetWidth - icon.scrollWidth) / 2 875 }px`; 876 } 877 878 /** 879 * Return whether the overlay is visible. 880 */ 881 isVisible() { 882 return this.el.style.getPropertyValue('display') !== 'none'; 883 } 884 885 /** 886 * Request that the overlay be hidden after a short delay. 887 */ 888 requestHide() { 889 if (this.hideTimeout !== null) { 890 return; 891 } 892 this.hideTimeout = setTimeout(() => { 893 hide(this.el); 894 this.clear(); 895 }, 300); 896 } 897 898 /** 899 * Cancel a request to hide the overlay. 900 */ 901 cancelHide() { 902 if (this.hideTimeout !== null) { 903 clearTimeout(this.hideTimeout); 904 this.hideTimeout = null; 905 } 906 } 907 } 908 909 // Overlay used for displaying comment like info.
910 const overlay = new Overlay(); 911 912 // The most recent comment for which the user has requested to see 913 // who liked it. 914 var relevantComment; 915 916 // Precache after this timeout. 917 var precacheTimeout = null; 918 919 /** 920 * Fetch the like data for a particular comment. 921 */ 922 function fetchLikeData(link, commentId) { 923 commentLikeCache[commentId] = null; 924 925 const container = link && link.parentElement && link.parentElement.parentElement; 926 const star = container.querySelector('a.comment-like-link'); 927 star && 928 handleLinkAction(star, 'view_comment_likes', commentId, data => { 929 // Populate the cache. 930 commentLikeCache[commentId] = data; 931 932 // Only show the overlay if the user is interested. 933 if (overlay.isVisible() && relevantComment === commentId) { 934 overlay.showLikes(link, data); 935 } 936 }); 937 } 938 939 function readCookie(c) { 940 const nameEQ = c + '='; 941 const cookieStrings = document.cookie.split(';'); 942 943 for (let i = 0; i < cookieStrings.length; i++) { 944 let cookieString = cookieStrings[i]; 945 while (cookieString.charAt(0) === ' ') { 946 cookieString = cookieString.substring(1, cookieString.length); 947 } 948 if (cookieString.indexOf(nameEQ) === 0) { 949 const chunk = cookieString.substring(nameEQ.length, cookieString.length); 950 const pairs = chunk.split('&'); 951 const cookieData = {}; 952 for (let num = pairs.length - 1; num >= 0; num--) { 953 const pair = pairs[num].split('='); 954 cookieData[pair[0]] = decodeURIComponent(pair[1]); 955 } 956 return cookieData; 957 } 958 } 959 return null; 960 } 961 962 function getServiceData() { 963 const data = readCookie('wpc_wpc'); 964 if (data === null || typeof data.access_token === 'undefined' || !data.access_token) { 965 return false; 966 } 967 return data; 968 } 969 970 function readMessage(msg) { 971 const event = msg.data; 972 973 if (typeof event.event === 'undefined') { 974 return; 975 } 976 977 if (event.event === 'login' && event.success) { 978 extWinCheck = setInterval(function () { 979 if (!extWin || extWin.closed) { 980 clearInterval(extWinCheck); 981 if (getServiceData()) { 982 // Load page in an iframe to get the current comment nonce 983 const nonceIframe = document.createElement('iframe'); 984 nonceIframe.id = 'wp-login-comment-nonce-iframe'; 985 nonceIframe.style.display = 'none'; 986 nonceIframe.src = commentLikeEvent + ''; 987 document.body.appendChild(nonceIframe); 988 989 const commentLikeId = (commentLikeEvent + '') 990 .split('like_comment=')[1] 991 .split('&_wpnonce=')[0]; 992 let c; 993 994 // Set a 5 second timeout to redirect to the comment page without doing the Like as a fallback 995 const commentLikeTimeout = setTimeout(() => { 996 window.location = commentLikeEvent; 997 }, 5000); 998 999 // Check for a new nonced redirect and use that if available before timing out 1000 const commentLikeCheck = setInterval(() => { 1001 const iframe = document.querySelector('#wp-login-comment-nonce-iframe'); 1002 if (iframe) { 1003 c = iframe.querySelector(`#comment-like-${commentLikeId} .comment-like-link`); 1004 } 1005 if (c && typeof c.href !== 'undefined') { 1006 clearTimeout(commentLikeTimeout); 1007 clearInterval(commentLikeCheck); 1008 window.location = c.href; 1009 } 1010 }, 100); 1011 } 1012 } 1013 }, 100); 1014 1015 if (extWin) { 1016 if (!extWin.closed) { 1017 extWin.close(); 1018 } 1019 extWin = false; 1020 } 1021 1022 stopPolling(); 1023 } 1024 } 1025 1026 if (typeof window.postMessage !== 'undefined') { 1027 window.addEventListener('message', e => { 1028 let message = e && e.data; 1029 if (typeof message === 'string') { 1030 try { 1031 message = JSON.parse(message); 1032 } catch (err) { 1033 return; 1034 } 1035 } 1036 1037 const type = message && message.type; 1038 if (type === 'loginMessage') { 1039 readMessage(message); 1040 } 1041 }); 1042 } 1043 1044 document.body.addEventListener('click', e => { 1045 let target = e.target; 1046 1047 // Don't do anything when clicking on the "X people" link. 1048 if (target.matches('p.comment-likes a.view-likers')) { 1049 e.preventDefault(); 1050 return; 1051 } 1052 1053 // Retrieve the surrounding paragraph to the star, if it hasn't been liked. 1054 const notLikedPar = target.closest('p.comment-not-liked'); 1055 1056 // Return if not clicking on star or surrounding paragraph. 1057 if (!target.matches('a.comment-like-link') && !notLikedPar) { 1058 return; 1059 } 1060 1061 // When a comment hasn't been liked, make the text clickable, too. 1062 if (notLikedPar) { 1063 target = notLikedPar.querySelector('a.comment-like-link'); 1064 if (!target) { 1065 return; 1066 } 1067 } 1068 1069 if (target.classList.contains('needs-login')) { 1070 e.preventDefault(); 1071 commentLikeEvent = target; 1072 if (extWin) { 1073 if (!extWin.closed) { 1074 extWin.close(); 1075 } 1076 extWin = false;
1077 } 1078 1079 stopPolling(); 1080 1081 const url = 'https://wordpress.com/public.api/connect/?action=request&service=wordpress'; 1082 extWin = window.open( 1083 url, 1084 'likeconn', 1085 'status=0,toolbar=0,location=1,menubar=0,directories=0,resizable=1,scrollbars=1,height=560,width=500' 1086 ); 1087 1088 startPolling(); 1089 1090 return false; 1091 } 1092 1093 // Record that the user likes or does not like this comment. 1094 const commentId = getCommentId(target); 1095 target.classList.add('loading'); 1096 1097 let commentEl = document.querySelector(`p#comment-like-${commentId}`); 1098 // Determine whether to like or unlike based on whether the comment is 1099 // currently liked. 1100 const action = 1101 commentEl && commentEl.dataset.liked === 'comment-liked' 1102 ? 'unlike_comment' 1103 : 'like_comment'; 1104 handleLinkAction(target, action, commentId, data => { 1105 // Invalidate the like cache for this comment. 1106 delete commentLikeCache[commentId]; 1107 1108 const countEl = document.querySelector(`#comment-like-count-${data.context}`); 1109 if (countEl) { 1110 countEl.innerHTML = data.display; 1111 } 1112 1113 commentEl = document.querySelector(`p#comment-like-${data.context}`); 1114 if (action === 'like_comment') { 1115 commentEl.classList.remove('comment-not-liked'); 1116 commentEl.classList.add('comment-liked'); 1117 commentEl.dataset.liked = 'comment-liked'; 1118 } else { 1119 commentEl.classList.remove('comment-liked'); 1120 commentEl.classList.add('comment-not-liked'); 1121 commentEl.dataset.liked = 'comment-not-liked'; 1122 } 1123 1124 // Prefetch new data for this comment (if there are likers left). 1125 const parent = target.closest('.comment-likes'); 1126 const link = parent && parent.querySelector('a.view-likers'); 1127 if (link) { 1128 fetchLikeData(link, commentId); 1129 } 1130 1131 target.classList.remove('loading'); 1132 }); 1133 e.preventDefault(); 1134 e.stopPropagation(); 1135 }); 1136 1137 document.body.addEventListener( 1138 'mouseenter', 1139 function (e) { 1140 if (!e.target.matches('p.comment-likes a.view-likers')) { 1141 return; 1142 } 1143 // Show the user a list of who has liked this comment. 1144 1145 const link = e.target; 1146 if (Number(link.dataset.likeCount || 0) === 0) { 1147 // No one has liked this comment. 1148 return; 1149 } 1150 1151 // Don't hide the overlay. 1152 overlay.cancelHide(); 1153 1154 // Get the comment ID. 1155 const container = link.parentElement && link.parentElement.parentElement; 1156 const star = container && container.querySelector('a.comment-like-link'); 1157 const commentId = star && getCommentId(star); 1158 relevantComment = commentId; 1159 1160 // Check if the list of likes for this comment is already in 1161 // the cache. 1162 if (commentId in commentLikeCache) { 1163 const entry = commentLikeCache[commentId];
1164 // Only display the likes if the ajax request is 1165 // actually done. 1166 if (entry !== null) { 1167 overlay.showLikes(link, entry); 1168 } else { 1169 // Make sure the overlay is visible (in case 1170 // the user moved the mouse away while loading 1171 // but then came back before it finished 1172 // loading). 1173 overlay.showLoadingMessage(link); 1174 } 1175 return; 1176 } 1177 1178 // Position the "Loading..." overlay. 1179 overlay.showLoadingMessage(link); 1180 1181 // Fetch the data. 1182 fetchLikeData(link, commentId); 1183 }, 1184 true 1185 ); 1186 1187 document.body.addEventListener( 1188 'mouseleave', 1189 e => { 1190 if (!e.target.matches('p.comment-likes a.view-likers')) { 1191 return; 1192 } 1193 // User has moved cursor away - hide the overlay. 1194 overlay.requestHide(); 1195 }, 1196 true 1197 ); 1198 1199 document.body.addEventListener( 1200 'mouseenter', 1201 e => { 1202 if (!e.target.matches('.comment') || !e.target.querySelector('a.comment-like-link')) { 1203 return; 1204 } 1205 // User is moving over a comment - precache the comment like data.
1206 if (precacheTimeout !== null) { 1207 clearTimeout(precacheTimeout); 1208 precacheTimeout = null; 1209 } 1210 1211 const star = e.target.querySelector('a.comment-like-link'); 1212 const parent = star.closest('.comment-likes'); 1213 const link = parent && parent.querySelector('a.view-likers'); 1214 if (!link || Number(link.dataset.likeCount || 0) === 0) { 1215 // No likes. 1216 return; 1217 } 1218 const commentId = getCommentId(star); 1219 if (commentId in commentLikeCache) { 1220 // Already in cache. 1221 return; 1222 } 1223 1224 precacheTimeout = setTimeout(() => { 1225 precacheTimeout = null; 1226 if (commentId in commentLikeCache) { 1227 // Was cached in the interim. 1228 return; 1229 } 1230 fetchLikeData(link, commentId); 1231 }, 1000); 1232 }, 1233 true 1234 ); 1235 } 1236 1237 if (document.readyState !== 'loading') { 1238 init(); 1239 } else { 1240 document.addEventListener('DOMContentLoaded', init); 1241 } 1242})(); 1243;
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.