MediaWiki:Gadget-BiDiEditing.js

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$(function () {
	var edit = $("#wpTextbox1, #wpFilterRules");
	if (edit.length === 0) return;

	$('<div style="float:left;">').append($.map({
		'dir=rtl': { direction: 'rtl' },
		'bidi=normal': { unicodeBidi: 'normal' },
		'Default': { direction: 'inherit', unicodeBidi: 'inherit' },
		'bidi=override': { unicodeBidi: 'bidi-override' },
		'dir=ltr': { direction: 'ltr' },
	}, function (css, name) {
		return $('<button>', { text: name }).click(function (e) {
			e.preventDefault();
			edit.css(css);
		});
	})).insertBefore(edit);
});