//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
$( function($) {
var namespaceNumber = mw.config.get('wgNamespaceNumber');
// only check links in mainspace, and userspace (for userspace drafts), and draftspace
var isCorrectNamespace = namespaceNumber === 0 || namespaceNumber === 2 || namespaceNumber === 118;
if (!isCorrectNamespace) {
return;
}
mw.util.addCSS(".duplicate-link { border: 1px solid red; }\n.duplicated-link { border: 1px dashed green; }");
var setActiveState = function (isActive) {
try {
localStorage.setItem('duplinks.active', isActive ? 'true' : '');
} catch(e) {}
};
var getActiveState = function () {
try {
return !!localStorage.getItem('duplinks.active');
} catch(e) {
return false;
}
};
var highlightDuplicateLinks = function() {
var isVisualEditor = window.location.href.search("veaction")>0;
// Get the element immediately surrounding the article text.
var $content = isVisualEditor ? $(".ve-ce-documentNode.ve-ce-branchNode") : $($(".mw-parser-output", "#mw-content-text")[0]);
// Create a separate div to conatin the lead
$lead = $("<div id='lead'>").prependTo($content);
// Move the elements containing the lead content into this newly-created div
$lead.nextAll().each( function() {
if (this.nodeName.toLowerCase() == 'h2') {
// Reached the first heading after the lead.
// Returning false breaks out of the jQuery .each() loop early
return false;
}
$lead.append(this);
return true;
});
// Objects to keep track of whether we've seen a link before, and which links are duplicated
var seen = {};
var duplicated = {};
var hasDuplicatedLinks = false;
// Styles
// Detect and mark links which are duplicates
var finddups = function() {
var href = this.attributes.href && this.attributes.href.value;
if (href != undefined && href.indexOf('#') != 0) {
if (seen[href]) {
this.classList.add("duplicate-link");
duplicated[href] = true;
hasDuplicatedLinks = true;
}
else {
seen[href] = true;
}
}
return true;
};
// Detect and mark the first occurance of duplicated links
var markdups = function() {
var href = this.attributes.href && this.attributes.href.value;
if(href != undefined && href.indexOf('#') != 0) {
if(duplicated[href]) {
this.classList.add("duplicated-link");
duplicated[href] = '';
}
}
return true;
};
// Process sections after the lead
mw.util.$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.$content.find('#lead p a').not('.infobox *, .navbox *').each(markdups);
return hasDuplicatedLinks;
};
var unhighlightLinks = function() {
mw.util.$content.find('p a').each(function() {
var href = this.attributes.href && this.attributes.href.value;
if (href != undefined && href.indexOf('#') != 0) {
if (this.classList.contains("duplicated-link")) {
this.classList.remove("duplicated-link");
this.classList.add("duplicated-link-plain");
}
if (this.classList.contains("duplicate-link")) {
this.classList.remove("duplicate-link");
this.classList.add("duplicate-link-plain");
}
}
return true;
});
};
var rehighlightLinks = function() {
mw.util.$content.find('p a').each(function() {
var href = this.attributes.href && this.attributes.href.value;
if (href != undefined && href.indexOf('#') != 0) {
if (this.classList.contains("duplicated-link-plain")) {
this.classList.remove("duplicated-link-plain");
this.classList.add("duplicated-link");
}
if (this.classList.contains("duplicate-link-plain")) {
this.classList.remove("duplicate-link-plain");
this.classList.add("duplicate-link");
}
}
return true;
});
};
mw.loader.using('mediawiki.util').then(function(){
var isActive = getActiveState();
var portletlinkUnhighlight = mw.util.addPortletLink('p-tb', '#', 'Unhighlight duplicate links', 'ca-unfindduplicatelinks', null, null, null);
var portletlinkRehighlight = mw.util.addPortletLink('p-tb', '#', 'Highlight duplicate links', 'ca-refindduplicatelinks', null, null, '#ca-unfindduplicatelinks');
$(portletlinkRehighlight).hide();
// Initial highlighting
if (isActive) {
highlightDuplicateLinks();
} else {
$(portletlinkUnhighlight).hide();
var portletlinkHighlight = mw.util.addPortletLink('p-tb', '#', 'Highlight duplicate links', 'ca-findduplicatelinks', null, null, '#ca-unfindduplicatelinks');
$(portletlinkHighlight).click( function(e) {
e.preventDefault();
var hasDuplicatedLinks = highlightDuplicateLinks();
setActiveState(true);
// Show a notice if no duplicates were found
if (!hasDuplicatedLinks) {
mw.notify('No duplicated links were detected');
}
$(portletlinkHighlight).hide();
$(portletlinkUnhighlight).show();
});
}
// Un-highlighting
$(portletlinkUnhighlight).click( function(e) {
e.preventDefault();
unhighlightLinks();
setActiveState(false);
$(portletlinkUnhighlight).hide();
$(portletlinkRehighlight).show();
});
// Re-highlighting
$(portletlinkRehighlight).click( function(e) {
e.preventDefault();
rehighlightLinks();
setActiveState(true);
$(portletlinkRehighlight).hide();
$(portletlinkUnhighlight).show();
});
});
});
