User:Aaron Liu/duplinks.js
//This script uses material from Wikipedia user Ucucha's script "duplinks" ( https://en.wikipedia.org/wiki/User:Ucucha/duplinks.js ), which is released under the Creative Commons Attribution-Share-Alike License 3.0 ( http://creativecommons.org/licenses/by-sa/3.0/ )
//See also https://en.wikipedia.org/wiki/User:Ucucha/duplinks for documentation of the original script
// oh uh it also uses User:Evad37/duplinks-alt which had the above notice, this thing adds config "autoDuplinks=true" to automatically highlihgt™
function highlightDuplinks(e = new Event("click")){
e.preventDefault();
// Check if VisualEditor is being used - the element surrounding text is different in VE
let isVisualEditor = window.location.href.search("veaction")>0;
// Get the element immediately surrounding the article text.
let $content = isVisualEditor ? $(".ve-ce-documentNode.ve-ce-branchNode") : $($(".mw-parser-output", "#mw-content-text")[0]);
// Create a separate div to conatin the lead
$lead = $("
// Move the elements containing the lead content into this newly-created div
$lead.nextAll().each( function() {
if (this.classList.contains(".mw-heading2")) {
// Reached the first heading after the lead.
// Returning false breaks out of the jQuery .each() loop early
return false;
}
$lead.append(this);
return true;
});
// Objects to keep track of whether we've seen a link before, and which links are duplicated
let seen = {};
let duplicated = {};
let hasDuplicatedLinks = false;
// Styles
mw.util.addCSS(".duplicate-link { border: 1px solid red; }\n.duplicated-link { border: 1px dashed green; }");
// Detect and mark links which are duplicates
let finddups = function() {
let href = this.attributes.href && this.attributes.href.value;
if (href != undefined && href.indexOf('#') != 0) {
if (seen[href]) {
this.classList.add("duplicate-link");
duplicated[href] = true;
hasDuplicatedLinks = true;
}
else {
seen[href] = true;
}
}
return true;
};
// Detect and mark the first occurance of duplicated links
let markdups = function() {
let href = this.attributes.href && this.attributes.href.value;
if(href != undefined && href.indexOf('#') != 0) {
if(duplicated[href]) {
this.classList.add("duplicated-link");
duplicated[href] = '';
}
}
return true;
};
// Process sections after the lead
mw.util.$content.find('p a').not('#lead *, .infobox *, .navbox *').each(finddups);
mw.util.$content.find('p a').not('#lead *, .infobox *, .navbox *').each(markdups);
// Reset tracking objects, process lead section
seen = {};
duplicated = {};
mw.util.$content.find('#lead p a').not('.infobox *, .navbox *').each(finddups);
mw.util.$content.find('#lead p a').not('.infobox *, .navbox *').each(markdups);
// Show a notice if no duplicates were found
if (!hasDuplicatedLinks && !autoDuplinks) {
mw.notify('No duplicated links were detected');
}
if(autoDuplinks)
autoDuplinks=false; // continue toast after button presses after we've auto'd it
}
$( function($) {
let namespaceNumber = mw.config.get('wgNamespaceNumber');
// only check links in mainspace, userspace (for userspace drafts), and draftspace
let isCorrectNamespace = namespaceNumber === 0 || namespaceNumber === 2 || namespaceNumber === 118;
if (!isCorrectNamespace) {
return;
}
if(typeof autoDuplinks === 'undefined'){
autoDuplinks = false; //out of scope behavior required
}
if(autoDuplinks) highlightDuplinks();
mw.loader.using('mediawiki.util').then(function(){
let portletlink = mw.util.addPortletLink('p-tb', '#', 'Highlight duplicate links', 'ca-findduplicatelinks');
$(portletlink).click( highlightDuplinks );
});
});