jone.rs/public/comments.js

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JavaScript
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2025-02-14 16:17:44 +01:00
// Taken from https://carlschwan.eu/2020/12/29/adding-comments-to-your-static-blog-with-mastodon/
// Attachment, card, and spoiler code taken from https://github.com/cassidyjames/cassidyjames.github.io/blob/99782788a7e3ba3cc52d6803010873abd1b02b9e/_includes/comments.html#L251-L296
let blogPostAuthorText = document.getElementById("blog-post-author-text").textContent;
let boostsFromText = document.getElementById("boosts-from-text").textContent;
let dateLocale = document.getElementById("date-locale").textContent;
let favesFromText = document.getElementById("faves-from-text").textContent;
let host = document.getElementById("host").textContent;
let id = document.getElementById("id").textContent;
let lazyAsyncImage = document.getElementById("lazy-async-image").textContent;
let loadingText = document.getElementById("loading-text").textContent;
let noCommentsText = document.getElementById("no-comments-text").textContent;
let relAttributes = document.getElementById("rel-attributes").textContent;
let reloadText = document.getElementById("reload-text").textContent;
let sensitiveText = document.getElementById("sensitive-text").textContent;
let user = document.getElementById("user").textContent;
let viewCommentText = document.getElementById("view-comment-text").textContent;
let viewProfileText = document.getElementById("view-profile-text").textContent;
document.getElementById("load-comments").addEventListener("click", loadComments);
function escapeHtml(unsafe) {
return unsafe
.replace(/&/g, "&")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;")
.replace(/"/g, "&quot;")
.replace(/'/g, "&#039;");
}
function emojify(input, emojis) {
let output = input;
emojis.forEach((emoji) => {
let picture = document.createElement("picture");
let source = document.createElement("source");
source.setAttribute("srcset", escapeHtml(emoji.url));
source.setAttribute("media", "(prefers-reduced-motion: no-preference)");
let img = document.createElement("img");
img.className = "emoji";
img.setAttribute("src", escapeHtml(emoji.static_url));
img.setAttribute("alt", `:${emoji.shortcode}:`);
img.setAttribute("title", `:${emoji.shortcode}:`);
if (lazyAsyncImage == "true") {
img.setAttribute("decoding", "async");
img.setAttribute("loading", "lazy");
}
picture.appendChild(source);
picture.appendChild(img);
output = output.replace(`:${emoji.shortcode}:`, picture.outerHTML);
});
return output;
}
function loadComments() {
let commentsWrapper = document.getElementById("comments-wrapper");
commentsWrapper.innerHTML = "";
let loadCommentsButton = document.getElementById("load-comments");
loadCommentsButton.innerHTML = loadingText;
loadCommentsButton.disabled = true;
fetch(`https://${host}/api/v1/statuses/${id}/context`)
.then(function (response) {
return response.json();
})
.then(function (data) {
let descendants = data["descendants"];
if (
descendants &&
Array.isArray(descendants) &&
descendants.length > 0
) {
commentsWrapper.innerHTML = "";
descendants.forEach(function (status) {
console.log(descendants);
if (status.account.display_name.length > 0) {
status.account.display_name = escapeHtml(
status.account.display_name
);
status.account.display_name = emojify(
status.account.display_name,
status.account.emojis
);
} else {
status.account.display_name = status.account.username;
}
let instance = "";
if (status.account.acct.includes("@")) {
instance = status.account.acct.split("@")[1];
} else {
instance = host;
}
const isReply = status.in_reply_to_id !== id;
let op = false;
if (status.account.acct == user) {
op = true;
}
status.content = emojify(status.content, status.emojis);
let comment = document.createElement("article");
comment.id = `comment-${status.id}`;
comment.className = isReply ? "comment comment-reply" : "comment";
comment.setAttribute("itemprop", "comment");
comment.setAttribute("itemtype", "http://schema.org/Comment");
let avatarSource = document.createElement("source");
avatarSource.setAttribute(
"srcset",
escapeHtml(status.account.avatar)
);
avatarSource.setAttribute(
"media",
"(prefers-reduced-motion: no-preference)"
);
let avatarImg = document.createElement("img");
avatarImg.className = "avatar";
avatarImg.setAttribute(
"src",
escapeHtml(status.account.avatar_static)
);
avatarImg.setAttribute(
"alt",
`@${status.account.username}@${instance} avatar`
);
if (lazyAsyncImage == "true") {
avatarImg.setAttribute("decoding", "async");
avatarImg.setAttribute("loading", "lazy");
}
let avatarPicture = document.createElement("picture");
avatarPicture.appendChild(avatarSource);
avatarPicture.appendChild(avatarImg);
let avatar = document.createElement("a");
avatar.className = "avatar-link";
avatar.setAttribute("href", status.account.url);
avatar.setAttribute("rel", relAttributes);
avatar.setAttribute(
"title",
`${viewProfileText} @${status.account.username}@${instance}`
);
avatar.appendChild(avatarPicture);
comment.appendChild(avatar);
let instanceBadge = document.createElement("a");
instanceBadge.className = "instance";
instanceBadge.setAttribute("href", status.account.url);
instanceBadge.setAttribute(
"title",
`@${status.account.username}@${instance}`
);
instanceBadge.setAttribute("rel", relAttributes);
instanceBadge.textContent = instance;
let display = document.createElement("span");
display.className = "display";
display.setAttribute("itemprop", "author");
display.setAttribute("itemtype", "http://schema.org/Person");
display.innerHTML = status.account.display_name;
let header = document.createElement("header");
header.className = "author";
header.appendChild(display);
header.appendChild(instanceBadge);
comment.appendChild(header);
let permalink = document.createElement("a");
permalink.setAttribute("href", status.url);
permalink.setAttribute("itemprop", "url");
permalink.setAttribute("title", `${viewCommentText} ${instance}`);
permalink.setAttribute("rel", relAttributes);
permalink.textContent = new Date(
status.created_at
).toLocaleString(dateLocale, {
dateStyle: "long",
timeStyle: "short",
});
let timestamp = document.createElement("time");
timestamp.setAttribute("datetime", status.created_at);
timestamp.appendChild(permalink);
permalink.classList.add("external");
comment.appendChild(timestamp);
let main = document.createElement("main");
main.setAttribute("itemprop", "text");
if (status.sensitive == true || status.spoiler_text != "") {
let summary = document.createElement("summary");
if (status.spoiler_text == "") {
status.spoiler_text == sensitiveText;
}
summary.innerHTML = status.spoiler_text;
let spoiler = document.createElement("details");
spoiler.appendChild(summary);
spoiler.innerHTML += status.content;
main.appendChild(spoiler);
} else {
main.innerHTML = status.content;
}
comment.appendChild(main);
let attachments = status.media_attachments;
let SUPPORTED_MEDIA = ["image", "video", "gifv", "audio"];
let media = document.createElement("div");
media.className = "attachments";
if (
attachments &&
Array.isArray(attachments) &&
attachments.length > 0
) {
attachments.forEach((attachment) => {
if (SUPPORTED_MEDIA.includes(attachment.type)) {
let mediaElement;
switch (attachment.type) {
case "image":
mediaElement = document.createElement("img");
mediaElement.setAttribute("src", attachment.preview_url);
if (attachment.description != null) {
mediaElement.setAttribute("alt", attachment.description);
mediaElement.setAttribute("title", attachment.description);
}
if (lazyAsyncImage == "true") {
mediaElement.setAttribute("decoding", "async");
mediaElement.setAttribute("loading", "lazy");
}
if (status.sensitive == true) {
mediaElement.classList.add("spoiler");
}
media.appendChild(mediaElement);
break;
case "video":
mediaElement = document.createElement("video");
mediaElement.setAttribute("src", attachment.url);
mediaElement.setAttribute("controls", "");
if (attachment.description != null) {
mediaElement.setAttribute("aria-title", attachment.description);
mediaElement.setAttribute("title", attachment.description);
}
if (status.sensitive == true) {
mediaElement.classList.add("spoiler");
}
media.appendChild(mediaElement);
break;
case "gifv":
mediaElement = document.createElement("video");
mediaElement.setAttribute("src", attachment.url);
mediaElement.setAttribute("autoplay", "");
mediaElement.setAttribute("playsinline", "");
mediaElement.setAttribute("loop", "");
if (attachment.description != null) {
mediaElement.setAttribute("aria-title", attachment.description);
mediaElement.setAttribute("title", attachment.description);
}
if (status.sensitive == true) {
mediaElement.classList.add("spoiler");
}
media.appendChild(mediaElement);
break;
case "audio":
mediaElement = document.createElement("audio");
mediaElement.setAttribute("src", attachment.url);
mediaElement.setAttribute("controls", "");
if (attachment.description != null) {
mediaElement.setAttribute("aria-title", attachment.description);
mediaElement.setAttribute("title", attachment.description);
}
media.appendChild(mediaElement);
break;
}
let mediaLink = document.createElement("a");
mediaLink.setAttribute("href", attachment.url);
mediaLink.setAttribute("rel", relAttributes);
mediaLink.appendChild(mediaElement);
media.appendChild(mediaLink);
}
});
comment.appendChild(media);
}
let interactions = document.createElement("footer");
let boosts = document.createElement("a");
boosts.className = "boosts";
boosts.setAttribute("href", `${status.url}/reblogs`);
boosts.setAttribute("title", `${boostsFromText}`.replace("$INSTANCE", instance));
let boostsIcon = document.createElement("i");
boostsIcon.className = "icon";
boosts.appendChild(boostsIcon);
boosts.insertAdjacentHTML('beforeend', ` ${status.reblogs_count}`);
interactions.appendChild(boosts);
let faves = document.createElement("a");
faves.className = "faves";
faves.setAttribute("href", `${status.url}/favourites`);
faves.setAttribute("title", `${favesFromText}`.replace("$INSTANCE", instance));
let favesIcon = document.createElement("i");
favesIcon.className = "icon";
faves.appendChild(favesIcon);
faves.insertAdjacentHTML('beforeend', ` ${status.favourites_count}`);
interactions.appendChild(faves);
comment.appendChild(interactions);
if (status.card != null) {
let cardFigure = document.createElement("figure");
if (status.card.image != null) {
let cardImg = document.createElement("img");
cardImg.setAttribute("src", status.card.image);
cardImg.classList.add("no-hover");
cardFigure.appendChild(cardImg);
}
let cardCaption = document.createElement("figcaption");
let cardTitle = document.createElement("strong");
cardTitle.innerHTML = status.card.title;
cardCaption.appendChild(cardTitle);
if (status.card.description != null && status.card.description.length > 0) {
let cardDescription = document.createElement("p");
cardDescription.innerHTML = status.card.description;
cardCaption.appendChild(cardDescription);
}
cardFigure.appendChild(cardCaption);
let card = document.createElement("a");
card.className = "card";
card.setAttribute("href", status.card.url);
card.setAttribute("rel", relAttributes);
card.appendChild(cardFigure);
comment.appendChild(card);
}
if (op === true) {
comment.classList.add("op");
avatar.classList.add("op");
avatar.setAttribute(
"title",
`${blogPostAuthorText}: ` + avatar.getAttribute("title")
);
instanceBadge.classList.add("op");
instanceBadge.setAttribute(
"title",
`${blogPostAuthorText}: ` + instanceBadge.getAttribute("title")
);
}
commentsWrapper.innerHTML += comment.outerHTML;
});
}
else {
var statusText = document.createElement("p");
statusText.innerHTML = noCommentsText;
statusText.setAttribute("id", "comments-status");
commentsWrapper.appendChild(statusText);
}
loadCommentsButton.innerHTML = reloadText;
})
.catch(function (error) {
console.error('Error loading comments:', error);
})
.finally(function () {
loadCommentsButton.disabled = false;
});
}