shareon/lib/shareon.js

122 lines
4.5 KiB
JavaScript

/*! shareon
* (c) 2020, Nikita Karamov
* SPDX-License-Identifier: BSD-3-Clause
*/
/**
* Social networks with their URL building functions.
*
* The format of this object is a map of strings (social networks' names) to the
* respective URL building functions. Such functions takes an object with the
* metadata of the page and returns the built URL.
*
* @type {{ [network: string]: (d: {
* url: string,
* title?: string,
* media?: string,
* text?: string,
* via?: string,
* fbAppId?: string
* }) => string}}
*/
const URL_BUILDERS = {
facebook: (d) => `https://www.facebook.com/sharer/sharer.php?u=${d.url}`,
linkedin: (d) => `https://www.linkedin.com/sharing/share-offsite/?url=${d.url}`,
mastodon: (d) => `https://toot.karamoff.dev/?text=${d.title}%0D%0A${d.url}${d.text ? `%0D%0A%0D%0A${d.text}` : ''}${d.via ? `%0D%0A%0D%0A${d.via}` : ''}`,
messenger: (d) => `https://www.facebook.com/dialog/send?app_id=${d.fbAppId}&link=${d.url}&redirect_uri=${d.url}`,
odnoklassniki: (d) => `https://connect.ok.ru/offer?url=${d.url}&title=${d.title}${d.media ? `&imageUrl=${d.media}` : ''}`,
pinterest: (d) => `https://pinterest.com/pin/create/button/?url=${d.url}&description=${d.title}${d.media ? `&media=${d.media}` : ''}`,
pocket: (d) => `https://getpocket.com/edit.php?url=${d.url}`,
reddit: (d) => `https://www.reddit.com/submit?title=${d.title}&url=${d.url}`,
telegram: (d) => `https://telegram.me/share/url?url=${d.url}${d.text ? `&text=${d.text}` : ''}`,
twitter: (d) => `https://twitter.com/intent/tweet?url=${d.url}&text=${d.title}${d.via ? `&via=${d.via}` : ''}`,
viber: (d) => `viber://forward?text=${d.title}%0D%0A${d.url}${d.text ? `%0D%0A%0D%0A${d.text}` : ''}`,
vkontakte: (d) => `https://vk.com/share.php?url=${d.url}&title=${d.title}${d.media ? `&image=${d.media}` : ''}`,
whatsapp: (d) => `https://wa.me/?text=${d.title}%0D%0A${d.url}${d.text ? `%0D%0A%0D%0A${d.text}` : ''}`,
};
/**
* Populates shareon buttons with correct URLs.
*
* This function generates the sharing URL for every share button and embeds
* them into the elements. For <a> elements, it updates the "href" attribute.
* For others, it sets a "click" listener.
*/
const shareon = () => {
const shareonContainers = document.getElementsByClassName('shareon');
// iterate over <div class="shareon">
for (let i = 0; i < shareonContainers.length; i += 1) {
/** @type Element */
const container = shareonContainers[i];
// iterate over children of <div class="shareon">
for (let j = 0; j < container.children.length; j += 1) {
/** @type Element */
const child = container.children[j];
if (child) {
const classListLength = child.classList.length;
// iterate over classes of the child element
for (let k = 0; k < classListLength; k += 1) {
const cls = child.classList.item(k);
// if it's one of the networks
if (Object.prototype.hasOwnProperty.call(URL_BUILDERS, cls)) {
const preset = {
url: encodeURIComponent(
child.dataset.url
|| container.dataset.url
|| window.location.href,
),
title: encodeURIComponent(
child.dataset.title
|| container.dataset.title
|| document.title,
),
media: encodeURIComponent(
child.dataset.media
|| container.dataset.media
|| '',
),
text: encodeURIComponent(
child.dataset.text
|| container.dataset.text
|| '',
),
via: encodeURIComponent(
child.dataset.via
|| container.dataset.via
|| '',
),
fbAppId: encodeURIComponent(
child.dataset.fbAppId
|| container.dataset.fbAppId
|| '',
),
};
const url = URL_BUILDERS[cls](preset);
if (child.tagName.toLowerCase() === 'a') {
child.setAttribute('href', url);
child.setAttribute('rel', 'noopener noreferrer');
child.setAttribute('target', '_blank');
} else {
child.onclick = () => {
window.open(url, '_blank', 'noopener,noreferrer');
};
}
break; // once a network is detected we don't want to check further
}
}
}
}
}
};
window.addEventListener('load', shareon);
export default shareon;