User:SD0001/shortdescs-in-category.js
/**
* Shows button on category pages to see short description of all pages in the category.
*
* Look for a button saying "Show SDs" towards the right, above the list of pages.
*
*/
$.ready.then(function() {
if (mw.config.get('wgNamespaceNumber') !== 14) {
return;
}
$('#mw-pages > p').append(
$('
);
if (location.href.indexOf('&showSD=y') !== -1) {
showsSDs();
}
});
function fixLinks(showingSDs) {
if (showingSDs) {
$('#mw-pages > a').each(function() {
if (this.href.indexOf('#') !== -1) {
this.href = this.href.replace(/#/, '&showSD=y#');
} else {
this.href += '&showSD=y';
}
});
} else {
$('#mw-pages > a').each(function() {
this.href = this.href.replace(/&showSD=y/g, '');
});
}
}
function hideSDs(e) {
if (e) e.preventDefault();
fixLinks(false);
$('#showSD-button').text('Show SDs').off('click').on('click', showsSDs);
$('.cat-shortdesc-none, .cat-shortdesc-local, .cat-shortdesc-wikidata').remove();
}
function showsSDs(e) {
if (e) e.preventDefault();
fixLinks(true);
$('#showSD-button').text('Hide SDs').off('click').on('click', hideSDs);
mw.util.addCSS('.cat-shortdesc-none { color: red } .cat-shortdesc-wikidata { color: MediumVioletRed }');
var titles = $('#mw-pages li').get().map(function(e) {
var a = e.querySelector('a');
return mw.Title.newFromText(a.textContent).getSubjectPage().toText();
});
var titleSets = arrayChunk(titles, 50);
var api = new mw.Api();
var wdApi = new mw.ForeignApi('https://www.wikidata.org/w/api.php', { anonymous: true });
var promiseArr = titleSets.map(function(set) {
return api.get({
"action": "query",
"format": "json",
"prop": "description",
"titles": set,
"formatversion": "2",
});
});
var promiseArrWd = titleSets.map(function(set) {
return wdApi.get({
"action": "wbgetentities",
"sites": "enwiki",
"titles": set,
"props": "descriptions|sitelinks",
"languages": "en",
"sitefilter": "enwiki"
});
});
$.when.apply($, promiseArr.concat(promiseArrWd)).then(function() {
var descs = {};
Array.prototype.slice.call(arguments).forEach(function(response) {
var json = response[0];
if (json.query) { // enwiki API output
json.query.pages.forEach(function(pg) {
descs[pg.title] = {
value: pg.description
};
});
} else if (json.entities) { // wikidata API output
$.each(json.entities, function(id, data) {
var pagename = data.sitelinks && data.sitelinks.enwiki && data.sitelinks.enwiki.title;
if (pagename) {
var entry = descs[pagename];
if (entry && !entry.value) {
entry.value = data.descriptions && data.descriptions.en && data.descriptions.en.value;
entry.wd = true;
}
}
});
}
});
attachDescriptions(descs);
});
}
function attachDescriptions(descs) {
$('#mw-pages li').get().forEach(function(e) {
var a = e.querySelector('a');
var title = mw.Title.newFromText(a.textContent).getSubjectPage().toText();
if (!descs[title] || !descs[title].value) {
$(e).append(
$('').text(' – no shortdesc')
.addClass('cat-shortdesc-none')
);
} else {
$(e).append(
$('').text(' – ' + descs[title].value)
.addClass(descs[title].wd ? 'cat-shortdesc-wikidata' : 'cat-shortdesc-local')
);
}
});
}
function arrayChunk(arr, size) {
var numChunks = Math.ceil(arr.length / size);
var result = new Array(numChunks);
for (var i = 0; i < numChunks; i++) {
result[i] = arr.slice(i * size, (i + 1) * size);
}
return result;
}