User:V111P/js/whatLinksHereLinkFilter.js

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// 2014-11-30
if (mw.config.get('wgCanonicalSpecialPageName') == 'Whatlinkshere')
$(function () {
	var helpPage = '//en.wikipedia.org/wiki/User:V111P/js/What_Links_Here_link_filter';
	var spanId = 'excludePagesLinkingTo_span';
	var inputId = 'excludePagesLinkingTo_textInput';
	var formId = 'excludePagesLinkingTo_form';
	var pageNames = [];

	$('#' + spanId).remove();

	$('div#mw-content-text form + fieldset')
		.append($('<span id="' + spanId + '"/>')
				.append(' | Hide pages linking to: ')
				.append($('<form id="excludePagesLinkingTo_form" style="display:inline;">'
						  + '<input type="text" id="' + inputId + '" size="40"/> '
						  + '<input type="submit" value="Go"/> (<a href="'
						  + helpPage + '" target="_blank">?</a>)</form>')));

	$('#' + formId).submit(function (e) {
		e.preventDefault();
		pageNames = $('#' + inputId).val().split('|');
		request();
	});

	// add a 5000 link next to the 500 link
	var limit500Lnk = $('#mw-content-text > a')
		.filter(function() { return $.text([this]) == '500'; });
	if (limit500Lnk[0]) {
		limit500Lnk.after(' | <a title="' + limit500Lnk.attr('title') + '" href="'
				+ limit500Lnk.attr('href').replace(/limit=500/, 'limit=5000') + '">5000</a>');
	}

	function request(blcontinue) {
		$.ajax({
			url: '/w/api.php?action=query&list=backlinks&format=json&rawcontinue&bllimit=max&bltitle='
				+ encodeURIComponent(pageNames[0]) + (blcontinue ? '&blcontinue=' + blcontinue : ''),
			dataType: 'json',
			error: function () {
				$('div#mw-content-text form > fieldset').append(' Error. ');
			},
			success: function (result) {
				var console = window.console || {log: function () {}, error: function (s) {alert(s);}};

				if (!result || !result.query || !result.query.backlinks) {
					console.error('What Links Here Script error: No (expected) response received from server');
					return;
				}

				var p = result.query.backlinks;
				var titles = [];
				for (var i = 0; i < p.length; i++) {
					titles.push(p[i].title);
				}
				var elsToRemove = [];

				console.log('using page: %s', pageNames[0]);
				console.log('links before removal: %d', $('ul#mw-whatlinkshere-list li').length);
				$('ul#mw-whatlinkshere-list li').each(function (i, li) {
					var lnk = $(li).find('a').first();
					if ($.inArray($(lnk).text(), titles) > -1) {
						elsToRemove.push(li);
					}
				});
				console.log('removed: %d', elsToRemove.length);
				$(elsToRemove).remove();
				console.log('links after removal: %d', $('ul#mw-whatlinkshere-list li').length);

				if (result['query-continue']) {
					console.log('Continue from: %s', result['query-continue'].backlinks.blcontinue);
					request(result['query-continue'].backlinks.blcontinue);
				}
				else {
					pageNames.shift();
					if (pageNames.length > 0)
						request();
				}

			}
		});
	}
});