Thread viewer for Bluesky
mackuba.eu
1/**
2 * Renders a post/thread view and its subviews.
3 */
4
5class PostComponent {
6 /**
7 * Post component's root HTML element, if built.
8 * @type {HTMLElement | undefined}
9 */
10 _rootElement;
11
12 /**
13 Contexts:
14 - thread - a post in the thread tree
15 - parent - parent reference above the thread root
16 - quote - a quote embed
17 - quotes - a post on the quotes page
18 - feed - a post on the hashtag feed page
19
20 @typedef {'thread' | 'parent' | 'quote' | 'quotes' | 'feed'} PostContext
21 @param {AnyPost} post, @param {PostContext} context
22 */
23 constructor(post, context) {
24 this.post = /** @type {Post}, TODO */ (post);
25 this.context = context;
26 }
27
28 /**
29 * @returns {HTMLElement}
30 */
31 get rootElement() {
32 if (!this._rootElement) {
33 throw new Error("rootElement not initialized");
34 }
35
36 return this._rootElement;
37 }
38
39 /** @returns {boolean} */
40 get isRoot() {
41 return this.post.isRoot;
42 }
43
44 /** @returns {string} */
45 get linkToAuthor() {
46 if (this.post.author.handle != 'handle.invalid') {
47 return 'https://bsky.app/profile/' + this.post.author.handle;
48 } else {
49 return 'https://bsky.app/profile/' + this.post.author.did;
50 }
51 }
52
53 /** @returns {string} */
54 get linkToPost() {
55 return this.linkToAuthor + '/post/' + this.post.rkey;
56 }
57
58 /** @returns {string} */
59 get didLinkToAuthor() {
60 let { repo } = atURI(this.post.uri);
61 return `https://bsky.app/profile/${repo}`;
62 }
63
64 /** @returns {string} */
65 get didLinkToPost() {
66 let { repo, rkey } = atURI(this.post.uri);
67 return `https://bsky.app/profile/${repo}/post/${rkey}`;
68 }
69
70 /** @returns {string} */
71 get authorName() {
72 if (this.post.author.displayName) {
73 return this.post.author.displayName;
74 } else if (this.post.author.handle.endsWith('.bsky.social')) {
75 return this.post.author.handle.replace(/\.bsky\.social$/, '');
76 } else {
77 return this.post.author.handle;
78 }
79 }
80
81 /** @returns {json} */
82 get timeFormatForTimestamp() {
83 if (this.context == 'quotes' || this.context == 'feed') {
84 return { weekday: 'short', day: 'numeric', month: 'short', year: 'numeric', hour: 'numeric', minute: 'numeric' };
85 } else if (this.isRoot || this.context != 'thread') {
86 return { day: 'numeric', month: 'short', year: 'numeric', hour: 'numeric', minute: 'numeric' };
87 } else if (this.post.pageRoot && !sameDay(this.post.createdAt, this.post.pageRoot.createdAt)) {
88 return { day: 'numeric', month: 'short', hour: 'numeric', minute: 'numeric' };
89 } else {
90 return { hour: 'numeric', minute: 'numeric' };
91 }
92 }
93
94 /** @param {HTMLElement} nodeToUpdate */
95 installIntoElement(nodeToUpdate) {
96 let view = this.buildElement();
97
98 let oldContent = $(nodeToUpdate.querySelector('.content'));
99 let newContent = $(view.querySelector('.content'));
100 oldContent.replaceWith(newContent);
101
102 this._rootElement = nodeToUpdate;
103 }
104
105 /** @returns {HTMLElement} */
106 buildElement() {
107 if (this._rootElement) {
108 return this._rootElement;
109 }
110
111 let div = $tag('div.post', `post-${this.context}`);
112 this._rootElement = div;
113
114 if (this.post.muted) {
115 div.classList.add('muted');
116 }
117
118 if (this.post instanceof BlockedPost) {
119 this.buildBlockedPostElement(div);
120 return div;
121 } else if (this.post instanceof DetachedQuotePost) {
122 this.buildDetachedQuoteElement(div);
123 return div;
124 } else if (this.post instanceof MissingPost) {
125 this.buildMissingPostElement(div);
126 return div;
127 }
128
129 let header = this.buildPostHeader();
130 div.appendChild(header);
131
132 let content = $tag('div.content');
133
134 if (this.context == 'thread' && !this.isRoot) {
135 let edgeMargin = this.buildEdgeMargin();
136 div.appendChild(edgeMargin);
137 }
138
139 let wrapper;
140
141 if (this.post.muted) {
142 let details = $tag('details');
143
144 let summary = $tag('summary');
145 summary.innerText = this.post.muteList ? `Muted (${this.post.muteList})` : 'Muted - click to show';
146 details.appendChild(summary);
147
148 content.appendChild(details);
149 wrapper = details;
150 } else {
151 wrapper = content;
152 }
153
154 let p = this.buildPostBody();
155 wrapper.appendChild(p);
156
157 if (this.post.tags) {
158 let tagsRow = this.buildTagsRow(this.post.tags);
159 wrapper.appendChild(tagsRow);
160 }
161
162 if (this.post.embed) {
163 let embed = new EmbedComponent(this.post, this.post.embed).buildElement();
164 wrapper.appendChild(embed);
165
166 if (this.post.originalFediURL) {
167 if (this.post.embed instanceof InlineLinkEmbed && this.post.embed.title.startsWith('Original post on ')) {
168 embed.remove();
169 }
170 }
171 }
172
173 if (this.post.originalFediURL) {
174 wrapper.appendChild(this.buildFediSourceLink());
175 }
176
177 if (this.post.likeCount !== undefined && this.post.repostCount !== undefined) {
178 let stats = this.buildStatsFooter();
179 wrapper.appendChild(stats);
180 }
181
182 if (this.post.replyCount == 1 && this.post.replies[0]?.author?.did == this.post.author.did) {
183 let component = new PostComponent(this.post.replies[0], 'thread');
184 let element = component.buildElement();
185 element.classList.add('flat');
186 content.appendChild(element);
187 } else {
188 for (let reply of this.post.replies) {
189 if (reply instanceof MissingPost) { continue }
190 if (reply instanceof BlockedPost && window.biohazardEnabled === false) { continue }
191
192 let component = new PostComponent(reply, 'thread');
193 content.appendChild(component.buildElement());
194 }
195 }
196
197 if (this.context == 'thread') {
198 if (this.post.hasMoreReplies) {
199 let loadMore = this.buildLoadMoreLink();
200 content.appendChild(loadMore);
201 } else if (this.post.hasHiddenReplies && window.biohazardEnabled !== false) {
202 let loadMore = this.buildHiddenRepliesLink();
203 content.appendChild(loadMore);
204 }
205 }
206
207 div.appendChild(content);
208
209 return div;
210 }
211
212 /** @returns {HTMLElement} */
213
214 buildPostHeader() {
215 let timeFormat = this.timeFormatForTimestamp;
216 let formattedTime = this.post.createdAt.toLocaleString(window.dateLocale, timeFormat);
217 let isoTime = this.post.createdAt.toISOString();
218
219 let h = $tag('h2');
220
221 h.innerHTML = `${escapeHTML(this.authorName)} `;
222
223 if (this.post.isFediPost) {
224 let handle = `@${this.post.authorFediHandle}`;
225 h.innerHTML += `<a class="handle" href="${this.linkToAuthor}" target="_blank">${handle}</a> ` +
226 `<img src="icons/mastodon.svg" class="mastodon"> `;
227 } else {
228 let handle = (this.post.author.handle != 'handle.invalid') ? `@${this.post.author.handle}` : '[invalid handle]';
229 h.innerHTML += `<a class="handle" href="${this.linkToAuthor}" target="_blank">${handle}</a> `;
230 }
231
232 h.innerHTML += `<span class="separator">•</span> ` +
233 `<a class="time" href="${this.linkToPost}" target="_blank" title="${isoTime}">${formattedTime}</a> `;
234
235 if (this.post.replyCount > 0 && !this.isRoot || ['quote', 'quotes', 'feed'].includes(this.context)) {
236 h.innerHTML +=
237 `<span class="separator">•</span> ` +
238 `<a href="${linkToPostThread(this.post)}" class="action" title="Load this subtree">` +
239 `<i class="fa-solid fa-arrows-split-up-and-left fa-rotate-180"></i></a> `;
240 }
241
242 if (this.post.muted) {
243 h.prepend($tag('i', 'missing fa-regular fa-circle-user fa-2x'));
244 } else if (this.post.author.avatar) {
245 h.prepend(this.buildUserAvatar(this.post.author.avatar));
246 } else {
247 h.prepend($tag('i', 'missing fa-regular fa-face-smile fa-2x'));
248 }
249
250 return h;
251 }
252
253 buildEdgeMargin() {
254 let div = $tag('div.margin');
255
256 let edge = $tag('div.edge');
257 let line = $tag('div.line');
258 edge.appendChild(line);
259 div.appendChild(edge);
260
261 let plus = $tag('img.plus', { src: 'icons/subtract-square.png' });
262 div.appendChild(plus);
263
264 [edge, plus].forEach(x => {
265 x.addEventListener('click', (e) => {
266 e.preventDefault();
267 this.toggleSectionFold();
268 });
269 });
270
271 return div;
272 }
273
274 /** @param {string} url, @returns {HTMLImageElement} */
275
276 buildUserAvatar(url) {
277 let avatar = $tag('img.avatar', { loading: 'lazy' }, HTMLImageElement); // needs to be set before src!
278 avatar.src = url;
279 window.avatarPreloader.observe(avatar);
280 return avatar;
281 }
282
283 /** @returns {HTMLElement} */
284
285 buildPostBody() {
286 if (this.post.originalFediContent) {
287 return $tag('div.body', { html: sanitizeHTML(this.post.originalFediContent) });
288 }
289
290 let p = $tag('p.body');
291 let richText = new RichText({ text: this.post.text, facets: this.post.facets });
292
293 for (let seg of richText.segments()) {
294 if (seg.mention) {
295 p.append($tag('a', { href: `https://bsky.app/profile/${seg.mention.did}`, text: seg.text }));
296 } else if (seg.link) {
297 p.append($tag('a', { href: seg.link.uri, text: seg.text }));
298 } else if (seg.tag) {
299 let url = new URL(getLocation());
300 url.searchParams.set('hash', seg.tag.tag);
301 p.append($tag('a', { href: url.toString(), text: seg.text }));
302 } else if (seg.text.includes("\n")) {
303 let span = $tag('span', { text: seg.text });
304 span.innerHTML = span.innerHTML.replaceAll("\n", "<br>");
305 p.append(span);
306 } else {
307 p.append(seg.text);
308 }
309 }
310
311 return p;
312 }
313
314 /** @param {string[]} terms */
315
316 highlightSearchResults(terms) {
317 let regexp = new RegExp(`\\b(${terms.join('|')})\\b`, 'gi');
318
319 let body = this._rootElement.querySelector(':scope > .content > .body, :scope > .content > details .body');
320 let walker = document.createTreeWalker(body, NodeFilter.SHOW_TEXT);
321 let textNodes = [];
322
323 while (walker.nextNode()) {
324 textNodes.push(walker.currentNode);
325 }
326
327 for (let node of textNodes) {
328 let markedText = document.createDocumentFragment();
329 let currentPosition = 0;
330
331 for (;;) {
332 let match = regexp.exec(node.textContent);
333 if (match === null) break;
334
335 if (match.index > currentPosition) {
336 let earlierText = node.textContent.slice(currentPosition, match.index);
337 markedText.appendChild(document.createTextNode(earlierText));
338 }
339
340 let span = $tag('span.highlight', { text: match[0] });
341 markedText.appendChild(span);
342
343 currentPosition = match.index + match[0].length;
344 }
345
346 if (currentPosition < node.textContent.length) {
347 let remainingText = node.textContent.slice(currentPosition);
348 markedText.appendChild(document.createTextNode(remainingText));
349 }
350
351 node.parentNode.replaceChild(markedText, node);
352 }
353 }
354
355 /** @param {string[]} tags, @returns {HTMLElement} */
356
357 buildTagsRow(tags) {
358 let p = $tag('p.tags');
359
360 for (let tag of tags) {
361 let url = new URL(getLocation());
362 url.searchParams.set('hash', tag);
363
364 let tagLink = $tag('a', { href: url.toString(), text: '# ' + tag });
365 p.append(tagLink);
366 }
367
368 return p;
369 }
370
371 /** @returns {HTMLElement} */
372
373 buildStatsFooter() {
374 let stats = $tag('p.stats');
375
376 let span = $tag('span');
377 let heart = $tag('i', 'fa-solid fa-heart ' + (this.post.liked ? 'liked' : ''));
378 heart.addEventListener('click', (e) => this.onHeartClick(heart));
379
380 span.append(heart, ' ', $tag('output', { text: this.post.likeCount }));
381 stats.append(span);
382
383 if (this.post.repostCount > 0) {
384 let span = $tag('span', { html: `<i class="fa-solid fa-retweet"></i> ${this.post.repostCount}` });
385 stats.append(span);
386 }
387
388 if (this.post.replyCount > 0 && (this.context == 'quotes' || this.context == 'feed')) {
389 let pluralizedCount = (this.post.replyCount > 1) ? `${this.post.replyCount} replies` : '1 reply';
390 let span = $tag('span', {
391 html: `<i class="fa-regular fa-message"></i> <a href="${linkToPostThread(this.post)}">${pluralizedCount}</a>`
392 });
393 stats.append(span);
394 }
395
396 if (!this.isRoot && this.context != 'quote' && this.post.quoteCount) {
397 let expanded = this.context == 'quotes' || this.context == 'feed';
398 let quotesLink = this.buildQuotesIconLink(this.post.quoteCount, expanded);
399 stats.append(quotesLink);
400 }
401
402 if (this.context == 'thread' && this.post.isRestrictingReplies) {
403 let span = $tag('span', { html: `<i class="fa-solid fa-ban"></i> Limited replies` });
404 stats.append(span);
405 }
406
407 return stats;
408 }
409
410 /** @param {number} count, @param {boolean} expanded, @returns {HTMLElement} */
411
412 buildQuotesIconLink(count, expanded) {
413 let q = new URL(getLocation());
414 q.searchParams.set('quotes', this.linkToPost);
415
416 let url = q.toString();
417 let icon = `<i class="fa-regular fa-comments"></i>`;
418
419 if (expanded) {
420 let span = $tag('span', { html: `${icon} ` });
421 let link = $tag('a', { text: (count > 1) ? `${count} quotes` : '1 quote', href: url });
422 span.append(link);
423 return span;
424 } else {
425 return $tag('a', { html: `${icon} ${count}`, href: url });
426 }
427 }
428
429 /** @param {number} quoteCount, @param {boolean} expanded */
430
431 appendQuotesIconLink(quoteCount, expanded) {
432 let stats = $(this.rootElement.querySelector(':scope > .content > p.stats'));
433 let quotesLink = this.buildQuotesIconLink(quoteCount, expanded);
434 stats.append(quotesLink);
435 }
436
437 /** @returns {HTMLElement} */
438
439 buildLoadMoreLink() {
440 let loadMore = $tag('p');
441
442 let link = $tag('a', {
443 href: linkToPostThread(this.post),
444 text: "Load more replies…"
445 });
446
447 link.addEventListener('click', (e) => {
448 e.preventDefault();
449 loadMore.innerHTML = `<img class="loader" src="icons/sunny.png">`;
450 this.loadSubtree(this.post, this.rootElement);
451 });
452
453 loadMore.appendChild(link);
454 return loadMore;
455 }
456
457 /** @returns {HTMLElement} */
458
459 buildHiddenRepliesLink() {
460 let loadMore = $tag('p.hidden-replies');
461
462 let link = $tag('a', {
463 href: linkToPostThread(this.post),
464 text: "Load hidden replies…"
465 });
466
467 link.addEventListener('click', (e) => {
468 e.preventDefault();
469
470 if (window.biohazardEnabled === true) {
471 this.loadHiddenReplies(loadMore);
472 } else {
473 window.loadInfohazard = () => this.loadHiddenReplies(loadMore);
474 showDialog($id('biohazard_dialog'));
475 }
476 });
477
478 loadMore.append("☣️ ", link);
479 return loadMore;
480 }
481
482 /** @param {HTMLElement} loadMoreButton */
483
484 loadHiddenReplies(loadMoreButton) {
485 loadMoreButton.innerHTML = `<img class="loader" src="icons/sunny.png">`;
486 this.loadHiddenSubtree(this.post, this.rootElement);
487 }
488
489 /** @returns {HTMLElement | undefined} */
490
491 buildFediSourceLink() {
492 let url = this.post.originalFediURL;
493 let hostname;
494
495 try {
496 hostname = new URL(url).hostname;
497 } catch (error) {
498 console.log("Invalid Fedi URL:" + error);
499 return undefined;
500 }
501
502 let a = $tag('a.fedi-link', { href: url, target: '_blank' });
503 let box = $tag('div', { html: `<i class="fa-solid fa-arrow-up-right-from-square fa-sm"></i> View on ${hostname}` });
504 a.append(box);
505 return a;
506 }
507
508 /** @param {HTMLLinkElement} authorLink */
509
510 loadReferencedPostAuthor(authorLink) {
511 let did = atURI(this.post.uri).repo;
512
513 api.fetchHandleForDid(did).then(handle => {
514 if (this.post.author) {
515 this.post.author.handle = handle;
516 } else {
517 this.post.author = { did, handle };
518 }
519
520 authorLink.href = this.linkToAuthor;
521 authorLink.innerText = `@${handle}`;
522 });
523 }
524
525 /** @param {HTMLElement} div, @returns {HTMLElement} */
526
527 buildBlockedPostElement(div) {
528 let p = $tag('p.blocked-header');
529 p.innerHTML = `<i class="fa-solid fa-ban"></i> <span>Blocked post</span>`;
530
531 if (window.biohazardEnabled === false) {
532 div.appendChild(p);
533 div.classList.add('blocked');
534 return p;
535 }
536
537 let blockStatus = this.post.blockedByUser ? 'has blocked you' : this.post.blocksUser ? "you've blocked them" : '';
538 blockStatus = blockStatus ? `, ${blockStatus}` : '';
539
540 let authorLink = $tag('a', { href: this.didLinkToAuthor, target: '_blank', text: 'see author' }, HTMLLinkElement);
541 p.append(' (', authorLink, blockStatus, ') ');
542 div.appendChild(p);
543
544 this.loadReferencedPostAuthor(authorLink);
545
546 let loadPost = $tag('p.load-post');
547 let a = $tag('a', { href: '#', text: "Load post…" });
548
549 a.addEventListener('click', (e) => {
550 e.preventDefault();
551 loadPost.innerHTML = ' ';
552 this.loadBlockedPost(this.post.uri, div);
553 });
554
555 loadPost.appendChild(a);
556 div.appendChild(loadPost);
557 div.classList.add('blocked');
558 return div;
559 }
560
561 /** @param {HTMLElement} div, @returns {HTMLElement} */
562
563 buildDetachedQuoteElement(div) {
564 let p = $tag('p.blocked-header');
565 p.innerHTML = `<i class="fa-solid fa-ban"></i> <span>Hidden quote</span>`;
566
567 if (window.biohazardEnabled === false) {
568 div.appendChild(p);
569 div.classList.add('blocked');
570 return p;
571 }
572
573 let authorLink = $tag('a', { href: this.didLinkToAuthor, target: '_blank', text: 'see author' }, HTMLLinkElement);
574 p.append(' (', authorLink, ') ');
575 div.appendChild(p);
576
577 this.loadReferencedPostAuthor(authorLink);
578
579 let loadPost = $tag('p.load-post');
580 let a = $tag('a', { href: '#', text: "Load post…" });
581
582 a.addEventListener('click', (e) => {
583 e.preventDefault();
584 loadPost.innerHTML = ' ';
585 this.loadBlockedPost(this.post.uri, div);
586 });
587
588 loadPost.appendChild(a);
589 div.appendChild(loadPost);
590 div.classList.add('blocked');
591 return div;
592 }
593
594 /** @param {HTMLElement} div, @returns {HTMLElement} */
595
596 buildMissingPostElement(div) {
597 let p = $tag('p.blocked-header');
598 p.innerHTML = `<i class="fa-solid fa-ban"></i> <span>Deleted post</span>`;
599
600 let authorLink = $tag('a', { href: this.didLinkToAuthor, target: '_blank', text: 'see author' }, HTMLLinkElement);
601 p.append(' (', authorLink, ') ');
602
603 this.loadReferencedPostAuthor(authorLink);
604
605 div.appendChild(p);
606 div.classList.add('blocked');
607 return div;
608 }
609
610 /** @param {string} uri, @param {HTMLElement} div, @returns Promise<void> */
611
612 async loadBlockedPost(uri, div) {
613 let record = await appView.loadPostIfExists(this.post.uri);
614
615 if (!record) {
616 let post = new MissingPost({ uri: this.post.uri });
617 let postView = new PostComponent(post, 'quote').buildElement();
618 div.replaceWith(postView);
619 return;
620 }
621
622 this.post = new Post(record);
623
624 let userView = await api.getRequest('app.bsky.actor.getProfile', { actor: this.post.author.did });
625
626 if (!userView.viewer || !(userView.viewer.blockedBy || userView.viewer.blocking)) {
627 let { repo, rkey } = atURI(this.post.uri);
628
629 let a = $tag('a', {
630 href: linkToPostById(repo, rkey),
631 className: 'action',
632 title: "Load thread",
633 html: `<i class="fa-solid fa-arrows-split-up-and-left fa-rotate-180"></i>`
634 });
635
636 let header = $(div.querySelector('p.blocked-header'));
637 let separator = $tag('span.separator', { html: '•' });
638 header.append(separator, ' ', a);
639 }
640
641 let loadPost = $(div.querySelector('p.load-post'));
642 loadPost.remove();
643
644 if (this.isRoot && this.post.parentReference) {
645 let { repo, rkey } = atURI(this.post.parentReference.uri);
646 let url = linkToPostById(repo, rkey);
647
648 let handle = api.findHandleByDid(repo);
649 let link = handle ? `See parent post (@${handle})` : "See parent post";
650
651 let p = $tag('p.back', { html: `<i class="fa-solid fa-reply"></i><a href="${url}">${link}</a>` });
652 div.appendChild(p);
653 }
654
655 let p = this.buildPostBody();
656 div.appendChild(p);
657
658 if (this.post.embed) {
659 let embed = new EmbedComponent(this.post, this.post.embed).buildElement();
660 div.appendChild(embed);
661
662 // TODO
663 Array.from(div.querySelectorAll('a.link-card')).forEach(x => x.remove());
664 }
665 }
666
667 /** @param {Post} post, @param {HTMLElement} nodeToUpdate, @returns {Promise<void>} */
668
669 async loadSubtree(post, nodeToUpdate) {
670 try {
671 let json = await api.loadThreadByAtURI(post.uri);
672
673 let root = Post.parseThreadPost(json.thread, post.pageRoot, 0, post.absoluteLevel);
674 post.updateDataFromPost(root);
675 window.subtreeRoot = post;
676
677 let component = new PostComponent(post, 'thread');
678 component.installIntoElement(nodeToUpdate);
679 } catch (error) {
680 showError(error);
681 }
682 }
683
684
685 /** @param {Post} post, @param {HTMLElement} nodeToUpdate, @returns {Promise<void>} */
686
687 async loadHiddenSubtree(post, nodeToUpdate) {
688 let content = $(nodeToUpdate.querySelector('.content'));
689 let hiddenRepliesDiv = $(content.querySelector(':scope > .hidden-replies'));
690
691 try {
692 var expectedReplyURIs = await blueAPI.getReplies(post.uri);
693 } catch (error) {
694 hiddenRepliesDiv.remove();
695
696 if (error instanceof APIError && error.code == 404) {
697 let info = $tag('p.missing-replies-info', {
698 html: `<i class="fa-solid fa-ban"></i> Hidden replies not available (post too old)`
699 });
700 content.append(info);
701 } else {
702 setTimeout(() => showError(error), 1);
703 }
704
705 return;
706 }
707
708 let missingReplyURIs = expectedReplyURIs.filter(r => !post.replies.some(x => x.uri === r));
709 let promises = missingReplyURIs.map(uri => api.loadThreadByAtURI(uri));
710
711 try {
712 // TODO
713 var responses = await Promise.allSettled(promises);
714 } catch (error) {
715 hiddenRepliesDiv.remove();
716 setTimeout(() => showError(error), 1);
717 return;
718 }
719
720 let replies = responses
721 .map(r => r.status == 'fulfilled' ? r.value : undefined)
722 .filter(v => v)
723 .map(json => Post.parseThreadPost(json.thread, post.pageRoot, 1, post.absoluteLevel + 1));
724
725 post.setReplies(replies);
726 hiddenRepliesDiv.remove();
727
728 for (let reply of post.replies) {
729 let component = new PostComponent(reply, 'thread');
730 let view = component.buildElement();
731 content.append(view);
732 }
733
734 if (replies.length < responses.length) {
735 let notFoundCount = responses.length - replies.length;
736 let pluralizedCount = (notFoundCount > 1) ? `${notFoundCount} replies are` : '1 reply is';
737
738 let info = $tag('p.missing-replies-info', {
739 html: `<i class="fa-solid fa-ban"></i> ${pluralizedCount} missing (likely taken down by moderation)`
740 });
741 content.append(info);
742 }
743 }
744
745 /** @returns {boolean} */
746 isCollapsed() {
747 return this.rootElement.classList.contains('collapsed');
748 }
749
750 toggleSectionFold() {
751 let plus = $(this.rootElement.querySelector(':scope > .margin .plus'), HTMLImageElement);
752
753 if (this.isCollapsed()) {
754 this.rootElement.classList.remove('collapsed');
755 plus.src = 'icons/subtract-square.png'
756 } else {
757 this.rootElement.classList.add('collapsed');
758 plus.src = 'icons/add-square.png'
759 }
760 }
761
762 /** @param {HTMLElement} heart, @returns {Promise<void>} */
763
764 async onHeartClick(heart) {
765 try {
766 if (!this.post.hasViewerInfo) {
767 if (accountAPI.isLoggedIn) {
768 let data = await this.loadViewerInfo();
769
770 if (data) {
771 if (this.post.liked) {
772 heart.classList.add('liked');
773 return;
774 } else {
775 // continue down
776 }
777 } else {
778 this.showPostAsBlocked();
779 return;
780 }
781 } else {
782 // not logged in
783 showDialog(loginDialog);
784 return;
785 }
786 }
787
788 let countField = $(heart.nextElementSibling);
789 let likeCount = parseInt(countField.innerText, 10);
790
791 if (!heart.classList.contains('liked')) {
792 let like = await accountAPI.likePost(this.post);
793 this.post.viewerLike = like.uri;
794 heart.classList.add('liked');
795 countField.innerText = String(likeCount + 1);
796 } else {
797 await accountAPI.removeLike(this.post.viewerLike);
798 this.post.viewerLike = undefined;
799 heart.classList.remove('liked');
800 countField.innerText = String(likeCount - 1);
801 }
802 } catch (error) {
803 showError(error);
804 }
805 }
806
807 showPostAsBlocked() {
808 let stats = $(this.rootElement.querySelector(':scope > .content > p.stats'));
809
810 if (!stats.querySelector('.blocked-info')) {
811 let span = $tag('span.blocked-info', { text: '🚫 Post unavailable' });
812 stats.append(span);
813 }
814 }
815
816 /** @returns {Promise<json | undefined>} */
817
818 async loadViewerInfo() {
819 let data = await accountAPI.loadPostIfExists(this.post.uri);
820
821 if (data) {
822 this.post.author = data.author;
823 this.post.viewerData = data.viewer;
824 this.post.viewerLike = data.viewer?.like;
825 }
826
827 return data;
828 }
829}