/*
 * jQuery Input Limitor plugin 1.0
 * http://rustyjeans.com/jquery-plugins/input-limitor/
 *
 * Copyright (c) 2009 Russel Fones
 * 
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 * 
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

(function($) {
	$.fn.inputlimitor = function(options) {
		var opts = $.extend({}, $.fn.inputlimitor.defaults, options);
		if ( opts.boxAttach && !$('#'+opts.boxId).length )
		{
			$('<div/>').appendTo("body").attr({id: opts.boxId, 'class': opts.boxClass}).css({'position': 'absolute'}).hide();
			// apply bgiframe if available
			if ( $.fn.bgiframe )
				$('#'+opts.boxId).bgiframe();
		}
		$(this).each(function(i){
			$(this).keyup(function(e){
				if ( $(this).val().length > opts.limit )
					$(this).val($(this).val().substring(0,opts.limit));
				if ( opts.boxAttach )
				{
					$('#'+opts.boxId).css({
						'width': $(this).outerWidth() - ($('#'+opts.boxId).outerWidth() - $('#'+opts.boxId).width()) + 'px',
						'left': $(this).offset().left + 'px',
						'top': ($(this).offset().top + $(this).outerHeight()) - 1 + 'px'
					});
				}
				var remText = opts.remText;
				remText = remText.replace(/\%n/g, opts.limit - $(this).val().length);
				remText = remText.replace(/\%s/g, ( opts.limit - $(this).val().length == 1?'':'s' ));

				var limitText = opts.limitText;
				limitText = limitText.replace(/\%n/g, opts.limit);
				limitText = limitText.replace(/\%s/g, ( opts.limit == 1?'':'s' ));

				if ( opts.limitTextShow )
				{
					$('#'+opts.boxId).html(remText + ' ' + limitText);
					// Check to see if the text is wrapping in the box
					// If it is lets break it between the remaining test and the limit test
					var textWidth = $("<span/>").appendTo("body").attr({id: '19cc9195583bfae1fad88e19d443be7a', 'class': opts.boxClass}).html(remText + ' ' + limitText).innerWidth();
					$("#19cc9195583bfae1fad88e19d443be7a").remove();
					if ( textWidth > $('#'+opts.boxId).innerWidth() ) {
						$('#'+opts.boxId).html(remText + '<br />' + limitText);
					}
					// Show the limitor box
					$('#'+opts.boxId).show();
				}
				else
					$('#'+opts.boxId).html(remText).show();
			});
			$(this).keypress(function(e){
				if ( (!e.keyCode || (e.keyCode > 46 && e.keyCode < 90)) && $(this).val().length >= opts.limit )
					return false;
			});
			$(this).blur(function(){
				if ( opts.boxAttach )
				{
					$('#'+opts.boxId).fadeOut('fast');
				}
				else if ( opts.remTextHideOnBlur )
				{
					var limitText = opts.limitText;
					limitText = limitText.replace(/\%n/g, opts.limit);
					limitText = limitText.replace(/\%s/g, ( opts.limit == 1?'':'s' ));
					$('#'+opts.boxId).html(limitText);
				}
			});
		});
	};

	$.fn.inputlimitor.defaults = {
		limit: 255,
		boxAttach: true,
		boxId: 'limitorBox',
		boxClass: 'limitorBox',
		remText: '%n character%s remaining.',
		remTextHideOnBlur: true,
		limitTextShow: true,
		limitText: 'Field limited to %n character%s.'
	};

})(jQuery);