Filter for wiki tables using the jQuery tablesorter filter widget
// ==UserScript==
// @name Wikitable filter
// @description Filter for wiki tables using the jQuery tablesorter filter widget
// @include *wiki*
// @require http://code.jquery.com/jquery-1.11.3.min.js
// @require https://cdnjs.cloudflare.com/ajax/libs/jquery.tablesorter/2.22.1/js/jquery.tablesorter.min.js
// @require https://cdnjs.cloudflare.com/ajax/libs/jquery.tablesorter/2.22.1/js/jquery.tablesorter.widgets.js
// @version 1.1.1
// @grant GM_info
// @namespace https://greasyfork.org/users/12797
// ==/UserScript==
// Constants
SHOW_FILTERS_CLASS = "wikitable_show_filters";
FILTERED_CLASS = "wikitable_filter_filtered";
// Globals
style_initialised = false;
// Functions
showFilters = function() {
var tbl = $(this).next(".wikitable");
tbl.addClass("tablesorter");
tbl.tablesorter({
"widgets": ["filter"],
"widgetOptions": {
"filter_filteredRow": FILTERED_CLASS
}
});
$(this).hide();
return false;
}
addShowFiltersButton = function() {
var btn = $("<button/>",
{ "type": "button",
"class": SHOW_FILTERS_CLASS,
"html": "\u2261 Filters" }
);
btn.click(showFilters);
return btn;
}
initTables = function(tbl) {
if (tbl.length > 0) {
if (!style_initialised) {
// Add our stylesheet
var styleElem = document.createElement('style');
document.head.appendChild(styleElem);
styleSheet = styleElem.sheet;
styleSheet.insertRule("tr."+FILTERED_CLASS+" { display: none; }", 0);
style_initialised = true;
}
// Add button to show the filters
tbl.before(addShowFiltersButton);
}
}
// Main
// Check if there are wiki tables on this page in the first place
var tbl = $("table.wikitable");
// Initialise them (if necessary)
initTables(tbl.has("thead").has("tbody"));
// Register observer that initialises tables that were modified to fit our
// criteria.
var tblMutationObserver = new MutationObserver(function(mutations) {
var mutatedNodes = new Array();
mutations.forEach(function(mutation) {
mutatedNodes.push(mutation.target);
});
var jqMutatedTbl = $(mutatedNodes);
jqMutatedTbl = jqMutatedTbl.filter(".wikitable").has("thead").has("tbody");
jqMutatedTbl = $.unique(jqMutatedTbl);
// Do not initialise tables twice!
jqMutatedTbl = jqMutatedTbl.not(".tablesorter");
if (jqMutatedTbl.length <= 0) {
return null;
}
console.log(jqMutatedTbl);
initTables(jqMutatedTbl);
});
tbl.each(function(index, node) {
tblMutationObserver.observe(
// node to be observed
node,
// options
{ "childList": true }
);
});