public

johnhunter / jQuery.equalHeights.js

Created 2010-10-27

/*
	jQuery.equalHeights Plugin
	@author	John Hunter
	@dependency	jQuery 1.4.x
	
	EqualHeights version 2.0 (2010-09-07 johnhunter.info)
	Based on an idea copyright (c) 2008 Rob Glazebrook (cssnewbie.com)
	use: $('#selector').equalHeights({minHeight: 200});
	see defaults object for options
	
*/
(function($) {
	
	var defaults = {
		minHeight: 0,
		maxHeight: 0,
		overflow: 'auto',
		useMinHeight: true,
		eachCallback: null
	};
	
	$.fn.equalHeights = function (options) {
		var tallest,
			ohOpts = { margin: true },
			heights = this.outerHeights({ margin: true });
		
		
		options = $.extend({}, defaults, options);
		
		heights.push(options.minHeight);
		tallest = Math.max.apply(null, heights);
		if(options.maxHeight && tallest > maxHeight) tallest = maxHeight;
		
		return this.each(function(i) {
			var el = $(this),
				of = options.overflow,
				cb = options.eachCallback,
				property = (!options.useMinHeight || (/MSIE 6/.test(navigator.userAgent))) ? 'height' : 'min-height',
				height = tallest + el.height() - el.outerHeight(ohOpts);
			
			
			el.css(property, height);
			if (of) el.css('overflow', of);
			if ($.isFunction(cb)) cb.call(this, i, el, height);
		});
	};
	
	$.fn.outerHeights = function (opts) {
		return $.map(this, function (i) {
			return $(i).outerHeight(opts);
		});
	};
	
})(jQuery);