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787 lines (703 loc) · 22.3 KB
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/**
* Mastodon embed feed timeline v3.9.1
* More info at:
* https://gitlab.com/idotj/mastodon-embed-feed-timeline
*/
/**
* Timeline settings
* Adjust these parameters to customize your timeline
*/
window.addEventListener("load", () => {
const mastodonTimeline = new MastodonApi({
// Id of the <div> containing the timeline
container_body_id: "mt-body",
// Class name for the loading spinner (also used in CSS file)
spinner_class: "loading-spinner",
// Preferred color theme: 'light', 'dark' or 'auto'. Default: auto
default_theme: "light",
// Your Mastodon instance
instance_url: "https://fosstodon.org",
// Choose type of toots to show in the timeline: 'local', 'profile', 'hashtag'. Default: local
timeline_type: "hashtag",
// Your user ID on Mastodon instance. Leave empty if you didn't choose 'profile' as type of timeline
user_id: "",
// Your user name on Mastodon instance. Leave empty if you didn't choose 'profile' as type of timeline
profile_name: "",
// The name of the hashtag. Leave empty if you didn't choose 'hashtag' as type of timeline
hashtag_name: "hackergarten",
// Maximum amount of toots to get. Default: 20
toots_limit: "20",
// Hide unlisted toots. Default: don't hide
hide_unlisted: false,
// Hide boosted toots. Default: don't hide
hide_reblog: false,
// Hide replies toots. Default: don't hide
hide_replies: false,
// Hide preview card if toot contains a link, photo or video from a URL. Default: don't hide
hide_preview_link: false,
// Hide custom emojis available on the server. Default: don't hide
hide_emojos: false,
// Converts Markdown symbol ">" at the beginning of a paragraph into a blockquote HTML tag. Ddefault: don't apply
markdown_blockquote: false,
//set the font icon for replies counter, e.g.
replies_count_icon: '<i class="fa fa-reply"></i>',
//set the font icon for boosts counter
boosts_count_icon: '<i class="fa fa-retweet"></i>',
//set the font icon for favourites counter
favourites_count_icon: '<i class="fa fa-star"></i>',
// Limit the text content to a maximum number of lines. Default: 0 (unlimited)
text_max_lines: "0",
// Customize the text of the link pointing to the Mastodon page (appears after the last toot)
link_see_more: "See more posts at Mastodon",
});
});
/**
* Set all variables with customized values or use default ones
* @param {object} params_ User customized values
* Trigger main function to build the timeline
*/
const MastodonApi = function (params_) {
this.CONTAINER_BODY_ID = params_.container_body_id || "mt-body";
this.SPINNER_CLASS = params_.spinner_class || "loading-spinner";
this.DEFAULT_THEME = params_.default_theme || "auto";
this.INSTANCE_URL = params_.instance_url;
this.USER_ID = params_.user_id || "";
this.PROFILE_NAME = this.USER_ID ? params_.profile_name : "";
this.TIMELINE_TYPE = params_.timeline_type || "local";
this.HASHTAG_NAME = params_.hashtag_name || "";
this.TOOTS_LIMIT = params_.toots_limit || "20";
this.HIDE_UNLISTED =
typeof params_.hide_unlisted !== "undefined"
? params_.hide_unlisted
: false;
this.HIDE_REBLOG =
typeof params_.hide_reblog !== "undefined" ? params_.hide_reblog : false;
this.HIDE_REPLIES =
typeof params_.hide_replies !== "undefined" ? params_.hide_replies : false;
this.HIDE_PREVIEW_LINK =
typeof params_.hide_preview_link !== "undefined"
? params_.hide_preview_link
: false;
this.HIDE_EMOJOS =
typeof params_.hide_emojos !== "undefined" ? params_.hide_emojos : false;
this.MARKDOWN_BLOCKQUOTE =
typeof params_.markdown_blockquote !== "undefined"
? params_.markdown_blockquote
: false;
this.TEXT_MAX_LINES = params_.text_max_lines || "0";
this.LINK_SEE_MORE = params_.link_see_more;
this.FETCHED_DATA = {};
this.REPLIES_COUNT_ICON = params_.replies_count_icon || '[Replies]';
this.BOOSTS_COUNT_ICON = params_.boosts_count_icon || '[Boost]';
this.FAVOURITES_COUNT_ICON = params_.favourites_count_icon || '[Favourite]';
this.mtBodyContainer = document.getElementById(this.CONTAINER_BODY_ID);
this.buildTimeline();
};
/**
* Trigger functions and construct timeline
*/
MastodonApi.prototype.buildTimeline = async function () {
// Apply color theme
this.setTheme();
// Get server data
await this.getTimelineData();
// Empty the <div> container
this.mtBodyContainer.innerHTML = "";
for (let i in this.FETCHED_DATA.timeline) {
// First filter (Public / Unlisted)
if (
this.FETCHED_DATA.timeline[i].visibility == "public" ||
(!this.HIDE_UNLISTED &&
this.FETCHED_DATA.timeline[i].visibility == "unlisted")
) {
// Second filter (Reblog / Replies)
if (
(this.HIDE_REBLOG && this.FETCHED_DATA.timeline[i].reblog) ||
(this.HIDE_REPLIES && this.FETCHED_DATA.timeline[i].in_reply_to_id)
) {
// Nothing here (Don't append toots)
} else {
// Append toots
this.appendToot(this.FETCHED_DATA.timeline[i], Number(i));
}
}
}
// Check if there are toots in the container (due to filters applied)
if (this.mtBodyContainer.innerHTML === "") {
this.mtBodyContainer.setAttribute("role", "none");
this.mtBodyContainer.innerHTML =
'<div class="mt-error"><span class="mt-error-icon">📭</span><br/><strong>Sorry, no toots to show</strong><br/><div class="mt-error-message">Got ' +
this.FETCHED_DATA.timeline.length +
' toots from the server but due to the "hide filters" applied, no toot is shown</div></div>';
} else {
// Insert link after last toot to visit Mastodon page
if (this.LINK_SEE_MORE) {
let linkSeeMorePath = "";
if (this.TIMELINE_TYPE === "profile") {
linkSeeMorePath = this.PROFILE_NAME;
} else if (this.TIMELINE_TYPE === "hashtag") {
linkSeeMorePath = "tags/" + this.HASHTAG_NAME;
} else if (this.TIMELINE_TYPE === "local") {
linkSeeMorePath = "public/local";
}
let linkSeeMore =
'<div class="mt-footer"><a href="' +
this.INSTANCE_URL +
"/" +
linkSeeMorePath +
'" class="btn" rel="nofollow noopener noreferrer">' +
this.LINK_SEE_MORE +
"</a></div>";
this.mtBodyContainer.parentNode.insertAdjacentHTML(
"beforeend",
linkSeeMore
);
}
// Control loading spinners
this.manageSpinner();
}
// Toot interactions
this.mtBodyContainer.addEventListener("click", function (e) {
// Check if toot cointainer was clicked
if (
e.target.localName == "article" ||
e.target.offsetParent.localName == "article" ||
(e.target.localName == "img" &&
e.target.offsetParent.className !== "mt-avatar" &&
e.target.offsetParent.className !== "mt-avatar-account")
) {
openTootURL(e);
}
// Check if Show More/Less button was clicked
if (
e.target.localName == "button" &&
e.target.className == "spoiler-link"
) {
toogleSpoiler(e);
}
});
this.mtBodyContainer.addEventListener("keydown", function (e) {
// Check if Enter key was pressed with focus in an article
if (e.key === "Enter" && e.target.localName == "article") {
openTootURL(e);
}
});
/**
* Open toot in a new page avoiding any other natural link
* @param {event} e User interaction trigger
*/
const openTootURL = function (e) {
let urlToot = e.target.closest(".mt-toot").dataset.location;
if (
e.target.localName !== "a" &&
e.target.localName !== "span" &&
e.target.localName !== "button" &&
e.target.parentNode.className !== "toot-preview-image" &&
urlToot
) {
window.open(urlToot, "_blank");
}
};
/**
* Spoiler button
* @param {event} e User interaction trigger
*/
const toogleSpoiler = function (e) {
const nextSibling = e.target.nextSibling;
if (nextSibling.localName === "img") {
e.target.parentNode.classList.remove("toot-media-spoiler");
e.target.style.display = "none";
} else if (
nextSibling.classList.contains("spoiler-text-hidden") ||
nextSibling.classList.contains("spoiler-text-visible")
) {
if (e.target.textContent == "Show more") {
nextSibling.classList.remove("spoiler-text-hidden");
nextSibling.classList.add("spoiler-text-visible");
e.target.setAttribute("aria-expanded", "true");
e.target.textContent = "Show less";
} else {
nextSibling.classList.remove("spoiler-text-visible");
nextSibling.classList.add("spoiler-text-hidden");
e.target.setAttribute("aria-expanded", "false");
e.target.textContent = "Show more";
}
}
};
};
/**
* Set the theme style chosen by the user or by the browser/OS
*/
MastodonApi.prototype.setTheme = function () {
/**
* Set the theme value in the <html> tag using the attribute "data-theme"
* @param {string} theme Type of theme to apply: dark or light
*/
const setTheme = function (theme) {
document.documentElement.setAttribute("data-theme", theme);
};
if (this.DEFAULT_THEME === "auto") {
let systemTheme = window.matchMedia("(prefers-color-scheme: dark)");
systemTheme.matches ? setTheme("dark") : setTheme("light");
// Update the theme if user change browser/OS preference
systemTheme.addEventListener("change", (e) => {
e.matches ? setTheme("dark") : setTheme("light");
});
} else {
setTheme(this.DEFAULT_THEME);
}
};
/**
* Requests to the server to get all the data
*/
MastodonApi.prototype.getTimelineData = async function () {
return new Promise((resolve, reject) => {
/**
* Fetch data from server
* @param {string} url address to fetch
* @returns {object} List of objects
*/
async function fetchData(url) {
const response = await fetch(url);
if (!response.ok) {
throw new Error(
"Failed to fetch the following URL: " +
url +
"<hr>" +
"Error status: " +
response.status +
"<hr>" +
"Error message: " +
response.statusText
);
}
const data = await response.json();
return data;
}
// URLs to fetch
let urls = {};
if (this.TIMELINE_TYPE === "profile") {
urls.timeline = `${this.INSTANCE_URL}/api/v1/accounts/${this.USER_ID}/statuses?limit=${this.TOOTS_LIMIT}`;
} else if (this.TIMELINE_TYPE === "hashtag") {
urls.timeline = `${this.INSTANCE_URL}/api/v1/timelines/tag/${this.HASHTAG_NAME}?limit=${this.TOOTS_LIMIT}`;
} else if (this.TIMELINE_TYPE === "local") {
urls.timeline = `${this.INSTANCE_URL}/api/v1/timelines/public?local=true&limit=${this.TOOTS_LIMIT}`;
}
if (!this.HIDE_EMOJOS) {
urls.emojos = this.INSTANCE_URL + "/api/v1/custom_emojis";
}
const urlsPromises = Object.entries(urls).map(([key, url]) => {
return fetchData(url)
.then((data) => ({ [key]: data }))
.catch((error) => {
reject(new Error("Something went wrong fetching data"));
this.mtBodyContainer.innerHTML =
'<div class="mt-error"><span class="mt-error-icon">❌</span><br/><strong>Sorry, request failed:</strong><br/><div class="mt-error-message">' +
error.message +
"</div></div>";
this.mtBodyContainer.setAttribute("role", "none");
return { [key]: [] };
});
});
// Fetch all urls simultaneously
Promise.all(urlsPromises).then((dataObjects) => {
this.FETCHED_DATA = dataObjects.reduce((result, dataItem) => {
return { ...result, ...dataItem };
}, {});
// console.log("Timeline data: ", this.FETCHED_DATA);
resolve();
});
});
};
/**
* Inner function to add each toot in timeline container
* @param {object} c Toot content
* @param {number} i Index of toot
*/
MastodonApi.prototype.appendToot = function (c, i) {
this.mtBodyContainer.insertAdjacentHTML("beforeend", this.assambleToot(c, i));
};
/**
* Build toot structure
* @param {object} c Toot content
* @param {number} i Index of toot
*/
MastodonApi.prototype.assambleToot = function (c, i) {
let avatar, user, content, url, date;
if (c.reblog) {
// BOOSTED toot
// Toot url
url = c.reblog.url;
// Boosted avatar
avatar =
'<a href="' +
c.reblog.account.url +
'" class="mt-avatar" rel="nofollow noopener noreferrer"> +
'<div class="mt-avatar-image">' +
'<div class="mt-avatar-boosted">' +
'<img src="' +
c.reblog.account.avatar +
'" alt="' +
c.reblog.account.username +
' avatar" loading="lazy" />' +
"</div>" +
'<div class="mt-avatar-account">' +
'<img src="' +
c.account.avatar +
'" alt="' +
c.account.username +
' avatar" loading="lazy" />' +
"</div>" +
"</div>" +
"</a>";
// User name and url
user =
'<div class="mt-user">' +
'<a href="' +
c.reblog.account.url +
'" rel="nofollow noopener noreferrer"> +
(c.reblog.account.display_name
? c.reblog.account.display_name
: c.reblog.account.username) +
'<span class="visually-hidden"> account</span>' +
"</a>" +
"</div>";
// Date
date = this.formatDate(c.reblog.created_at);
} else {
// STANDARD toot
// Toot url
url = c.url;
// Avatar
avatar =
'<a href="' +
c.account.url +
'" class="mt-avatar" rel="nofollow noopener noreferrer"> +
'<div class="mt-avatar-image">' +
'<img src="' +
c.account.avatar +
'" alt="' +
c.account.username +
' avatar" loading="lazy" />' +
"</div>" +
"</a>";
// User name and url
user =
'<div class="mt-user">' +
'<a href="' +
c.account.url +
'" rel="nofollow noopener noreferrer"> +
(c.account.display_name ? c.account.display_name : c.account.username) +
'<span class="visually-hidden"> account</span>' +
"</a>" +
"</div>";
// Date
date = this.formatDate(c.created_at);
}
// Main text
let text_css = "";
if (this.TEXT_MAX_LINES !== "0") {
text_css = "truncate";
document.documentElement.style.setProperty(
"--text-max-lines",
this.TEXT_MAX_LINES
);
}
if (c.spoiler_text !== "") {
content =
'<div class="toot-text">' +
c.spoiler_text +
' <button type="button" class="spoiler-link" aria-expanded="false">Show more</button>' +
'<div class="spoiler-text-hidden">' +
this.formatTootText(c.content) +
"</div>" +
"</div>";
} else if (
c.reblog &&
c.reblog.content !== "" &&
c.reblog.spoiler_text !== ""
) {
content =
'<div class="toot-text">' +
c.reblog.spoiler_text +
' <button type="button" class="spoiler-link" aria-expanded="false">Show more</button>' +
'<div class="spoiler-text-hidden">' +
this.formatTootText(c.reblog.content) +
"</div>" +
"</div>";
} else if (
c.reblog &&
c.reblog.content !== "" &&
c.reblog.spoiler_text === ""
) {
content =
'<div class="toot-text ' +
text_css +
'">' +
"<div>" +
this.formatTootText(c.reblog.content) +
"</div>" +
"</div>";
} else {
content =
'<div class="toot-text ' +
text_css +
'">' +
"<div>" +
this.formatTootText(c.content) +
"</div>" +
"</div>";
}
// Media attachments
let media = "";
if (c.media_attachments.length > 0) {
for (let picid in c.media_attachments) {
media = this.placeMedias(c.media_attachments[picid], c.sensitive);
}
}
if (c.reblog && c.reblog.media_attachments.length > 0) {
for (let picid in c.reblog.media_attachments) {
media = this.placeMedias(
c.reblog.media_attachments[picid],
c.reblog.sensitive
);
}
}
// Preview link
let preview_link = "";
if (!this.HIDE_PREVIEW_LINK && c.card) {
preview_link = this.placePreviewLink(c.card);
}
// Poll
let poll = "";
let pollOption = "";
if (c.poll) {
for (let i in c.poll.options) {
pollOption += "<li>" + c.poll.options[i].title + "</li>";
}
poll = '<div class="toot-poll">' + "<ul>" + pollOption + "</ul>" + "</div>";
}
// Date
const timestamp =
'<div class="toot-date">' +
'<a href="' +
url +
'" rel="nofollow noopener noreferrer" tabindex="-1"> +
date +
"</a>" +
"</div>";
// stats (boosts + favourites counts) >>>
// data
var repliesCountIcon = '<span class="toot-status-replies">' + this.REPLIES_COUNT_ICON +": "+ c.replies_count + ' </span>';
var boostsCountIcon = '<span class="toot-status-boosts">' + this.BOOSTS_COUNT_ICON +": "+ c.reblogs_count + ' </span>';
var favouritesCountIcon = '<span class="toot-status-favourites">' + this.FAVOURITES_COUNT_ICON +": "+ c.favourites_count + ' </span>';
// html nodes
var statusBar = '<div class="toot-status">' +
repliesCountIcon +
boostsCountIcon +
favouritesCountIcon +
'</div>';
// Add all to main toot container
const toot =
'<article class="mt-toot" aria-posinset="' +
(i + 1) +
'" aria-setsize="' +
this.TOOTS_LIMIT +
'" data-location="' +
url +
'" tabindex="0">' +
avatar +
timestamp +
user +
content +
media +
preview_link +
poll +
statusBar +
"</article>";
return toot;
};
/**
* Handle text changes made to toots
* @param {string} c Text content
* @returns {string} Text content modified
*/
MastodonApi.prototype.formatTootText = function (c) {
let content = c;
// Format hashtags and mentions
content = this.addTarget2hashtagMention(content);
// Convert emojos shortcode into images
if (!this.HIDE_EMOJOS) {
content = this.showEmojos(content, this.FETCHED_DATA.emojos);
}
// Convert markdown styles into HTML
if (this.MARKDOWN_BLOCKQUOTE) {
content = this.replaceHTMLtag(
content,
"<p>>",
"</p>",
"<blockquote><p>",
"</p></blockquote>"
);
}
return content;
};
/**
* Add to all #hashtags and @mentions in the toot
* @param {string} c Text content
* @returns {string} Text content modified
*/
MastodonApi.prototype.addTarget2hashtagMention = function (c) {
let content = c.replaceAll('rel="tag"', 'rel="tag">);
content = content.replaceAll(
'class="u-url mention"',
'class="u-url mention">
);
return content;
};
/**
* Find all custom emojis shortcode and replace by image
* @param {string} c Text content
* @param {array} e List with all custom emojis
* @returns {string} Text content modified
*/
MastodonApi.prototype.showEmojos = function (c, e) {
if (c.includes(":")) {
for (const emojo of e) {
const regex = new RegExp(`\\:${emojo.shortcode}\\:`, "g");
c = c.replace(
regex,
`<img src="${emojo.url}" class="custom-emoji" alt="Emoji ${emojo.shortcode}" />`
);
}
return c;
} else {
return c;
}
};
/**
* Find all start/end <tags> and replace them by another start/end <tags>
* @param {string} c Text content
* @param {string} initialTagOpen Start HTML tag to replace
* @param {string} initialTagClose End HTML tag to replace
* @param {string} replacedTagOpen New start HTML tag
* @param {string} replacedTagClose New end HTML tag
* @returns {string} Text in HTML format
*/
MastodonApi.prototype.replaceHTMLtag = function (
c,
initialTagOpen,
initialTagClose,
replacedTagOpen,
replacedTagClose
) {
if (c.includes(initialTagOpen)) {
const regex = new RegExp(initialTagOpen + "(.*?)" + initialTagClose, "gi");
return c.replace(regex, replacedTagOpen + "$1" + replacedTagClose);
} else {
return c;
}
};
/**
* Place media
* @param {object} m Media content
* @param {boolean} s Spoiler/Sensitive status
* @returns {string} Media in HTML format
*/
MastodonApi.prototype.placeMedias = function (m, s) {
let spoiler = s || false;
const pic =
'<div class="toot-media ' +
(spoiler ? "toot-media-spoiler" : "") +
" img-ratio14_7 " +
this.SPINNER_CLASS +
'">' +
(spoiler ? '<button class="spoiler-link">Show content</button>' : "") +
'<img src="' +
m.preview_url +
'" alt="' +
(m.description ? m.description : "") +
'" loading="lazy" />' +
"</div>";
return pic;
};
/**
* Place preview link
* @param {object} c Preview link content
* @returns {string} Preview link in HTML format
*/
MastodonApi.prototype.placePreviewLink = function (c) {
let card =
'<a href="' +
c.url +
'" class="toot-preview-link" rel="noopener noreferrer">' +
(c.image
? '<div class="toot-preview-image ' +
this.SPINNER_CLASS +
'"><img src="' +
c.image +
'" alt="" loading="lazy" /></div>'
: '<div class="toot-preview-noImage">📄</div>') +
"</div>" +
'<div class="toot-preview-content">' +
(c.provider_name
? '<span class="toot-preview-provider">' + c.provider_name + "</span>"
: "") +
'<span class="toot-preview-title">' +
c.title +
"</span>" +
(c.author_name
? '<span class="toot-preview-author">By ' + c.author_name + "</span>"
: "") +
"</div>" +
"</a>";
return card;
};
/**
* Format date
* @param {string} d Date in ISO format (YYYY-MM-DDTHH:mm:ss.sssZ)
* @returns {string} Date formated (MM DD, YYYY)
*/
MastodonApi.prototype.formatDate = function (d) {
const monthNames = [
"Jan",
"Feb",
"Mar",
"Apr",
"May",
"Jun",
"Jul",
"Aug",
"Sep",
"Oct",
"Nov",
"Dec",
];
let date = new Date(d);
const displayDate =
monthNames[date.getMonth()] +
" " +
date.getDate() +
", " +
date.getFullYear();
return displayDate;
};
/**
* Add/Remove event listener for loading spinner
*/
MastodonApi.prototype.manageSpinner = function () {
// Remove CSS class to container and listener to images
const spinnerCSS = this.SPINNER_CLASS;
const removeSpinner = function () {
this.parentNode.classList.remove(spinnerCSS);
this.removeEventListener("load", removeSpinner);
this.removeEventListener("error", removeSpinner);
};
// Add listener to images
this.mtBodyContainer
.querySelectorAll(`.${this.SPINNER_CLASS} > img`)
.forEach((e) => {
e.addEventListener("load", removeSpinner);
e.addEventListener("error", removeSpinner);
});
};