User:TheresNoTime/linkThings.js
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/**
* linkThings - a script to let you alt + click on
* [[wiki links]] and {{template links}} in the CodeMirror
* and visual source editor
*
* @version 1.4.0
* @license https://opensource.org/licenses/MIT MIT
* @author https://github.com/TheresNoGit/linkThings/graphs/contributors
* @link https://github.com/TheresNoGit/linkThings
*/
/* global $, mw, ve */
/*jshint esversion: 6 */
// Configure
let version = "1.4.0";
// Init
$(function() {
mw.loader.using(["mediawiki.Title"], setup);
});
/**
* Gets the URL of the page, irrespective of the wiki this is on.
* @param {string} page The page to get the URL of.
*/
function getUrl(page = "") {
return new URL(
mw.config.get("wgArticlePath").replace(/\$1/g, page),
window.location.href
).toString();
}
/**
* Set up the event listener
*
* @returns bool
*/
function setup() {
// Wait for VE Source to load
mw.hook('ve.activationComplete').add(function () {
if ($(".ve-ui-surface").length) {
// Get VE object
var surface = ve.init.target.getSurface();
// Only run in source mode
if (surface.getMode() === 'source') {
// Set up event listener for an alt + click
$('.ve-ui-surface').on('click', function (event) {
if (event.altKey) {
$(".cm-mw-pagename").each((i, e) => {
// Click "raycasting" in order to detect the click even if the VE
// elemnent is overhead.
if (isClickAboveElement(e, event)) {
if (parseLink(e)) {
return true;
} else {
// Assume the user alt + clicked on something they thought would work, and give error
console.error(`linkThings v${version}: Clicked element was not detected as a page or template link`);
return false;
}
}
});
}
});
console.info(`linkThings v${version}: Initialized OK, using ${getUrl()} in VE mode`);
} else {
console.debug(`linkThings v${version}: VE is not in source mode`);
}
} else {
console.error(`linkThings v${version}: Could not initialize script - ve-ui-surface element not found?`);
return false;
}
});
// Wait for CodeMirror to load
mw.hook('ext.CodeMirror.switch').add(function (enabled, cm) {
if ($(".CodeMirror").length && enabled) {
// Set up event listener for an alt + click
CodeMirror.on(cm[0], "mousedown", function (event) {
if (event.altKey) {
if (parseLink(event.target)) {
return true;
} else {
// Assume the user alt + clicked on something they thought would work, and give error
console.error(`linkThings v${version}: Clicked element was not detected as a page or template link`);
return false;
}
}
});
console.info(`linkThings v${version}: Initialized OK, using ${getUrl()} in CodeMirror mode`);
} else {
console.error(`linkThings v${version}: Could not initialize script - CodeMirror element not found?`);
return false;
}
});
}
/**
* Parse a ctrl clicked *anything* (CodeMirror)
*
* @param {HTMLElement} element Clicked HTML element
* @returns bool
*/
function parseLink(element) {
// Check if this is a page/template link
if (!element.classList.contains("cm-mw-pagename")) {
// Neither a template link nor a page link
return false;
} else if (
element.classList.contains("cm-mw-template-name")
|| element.classList.contains("cm-mw-link-pagename")
) {
// Get the page link
const page = new mw.Title(
element.innerHTML,
element.classList.contains("cm-mw-template-name") ? //
mw.config.get("wgNamespaceIds")["template"] : undefined
);
const url = getUrl(page.getPrefixedDb());
console.debug(`linkThings v${version}: opening ${url}`);
openInTab(url);
return true;
}
}
/**
* Check if a click was above an element.
*
* @param {HTMLElement} element The element to check for
* @param {MouseEvent} event The event to check against
* @returns {boolean} Whether or not the click was above the element or not
*/
function isClickAboveElement(element, event) {
const $e = $(element), $w = $(window);
const { clientY: cTop, clientX: cLeft } = event;
const { top: eTop, left: eLeft } = $e.offset();
const eHeight = $e.height(), eWidth = $e.width();
const scrollTop = $w.scrollTop(), scrollLeft = $w.scrollLeft();
return (
// Within bounds, top
eTop - scrollTop <= cTop && eTop - scrollTop + eHeight >= cTop &&
// Within bounds, left
eLeft - scrollLeft <= cLeft && eLeft - scrollLeft + eWidth >= cLeft
);
}
/**
* Opens a URL in a new tab
*
* @param {string} url URL to open
* @returns bool
*/
function openInTab(url) {
var newTab = window.open(url, '_blank');
if (newTab) {
newTab.focus();
return true;
} else {
console.error(`linkThings v${version}: Browser did not open new tab. Check settings?`);
alert('Please ensure popups are enabled for this site');
return false;
}
}