MediaWiki:Gadget-infoboxQty.js

/**
 * Infobox quantity script
 * Adds a number input box next to specific numbers in tables
 * Primary use case: the price in Infobox Item
 * 
 * TODO: add infobox monster support (for what?)
 * 
 * USAGE:
 * <td><span class="infobox-quantity" data-val-each="100" data-value="1"><span class="infobox-quantity-replace">100</span> coins</span></td>
 * Everything inside the td should be wrapped in the outer span, which has class=infobox-quantity and attr data-val-each=(value of each item)
 * Inside that span, some part should be wrapped in another span with class=infobox-quantity-replace
 *     this is the part that gets replaced with the result
 * the result is input val * data-val-each
 * The data-value attribute is used as the default value. If it is not specified, the input is initialised at '1'.
 *
 * this is safe for use with switch infoboxes - the input is placed outside (before) the outer span, inside the td
 * [[MediaWiki:Common.js/switchInfobox2.js]] has an explicit exception to work with this and this only
 *     (that is, $("input+span"), with the entirety of the span being replaced on a switch)
 * 
 * 
 * originally based on [[User:Joeytje50/monstercalc.js]]
 */ 
$(function () {
	mw.hook('wikipage.content').add(function init( $content ) {
		// Delegated event so it works for any new inputs that get generated later on.
		$('body').on('keyup click change mousewheel', 'input.QtyCalc', function (event) {
			var warn = '',
			warn2 = '',
			val = 1,
			$this = $(this),
			$ifbq = $(event.currentTarget).parent(),
			$rep = $ifbq.find('span.infobox-quantity-replace'),
			each = $ifbq.attr('data-val-each'),
			formula = $ifbq.attr('data-formula');
			// check if nonnumeric entered (generally if type=number not supported)
			// if so, setup warnings
			if ($this.val().search(/[^0-9]/g) != -1) {
				warn = '<abbr title="non-numeric characters are ignored" class="explain">';
				warn2 = '</abbr>';
			}
			//sanitise val, parse to int
			val = parseInt($this.val().replace(/[^0-9]/g, ''));
			if (isNaN(val)) {
				val = 1; // invalid number -> just use 1
			}
			
			$rep.html(warn + rswiki.addCommas(each * val) + warn2);
		});
		
		/**
		* generic one-value calc
		* compatible with most (switch) infoboxes made with [[Module:Infobox]]
		* Takes an argument `el` which must be a selector for the parent element, or the element itself.
		*/
		rswiki.initQtyBox = function(el) {
			$(el).find('td > span.infobox-quantity').not(':has(input)').each(function(i,e){
				var $self = $(e);
				var $input = $('<input>')
					.attr({
						id: 'QtyCalc'+i,
						class: 'QtyCalc',
						type: 'number',
						value: $self.data('value') || '1',
						maxlength: '10',
						min: '0',
						max: '9999999999',
					})
					.css({
						width: '65px',
						'margin-right': '0.25em',
					})
					.prependTo($self)
					.trigger('change');
			});
		};
	
		// init boxes in on the whole page
		rswiki.initQtyBox( $content );
	});
})