// Copyright ©2010 Aaron Vanderzwan, by Aaron Vanderzwan
// 
// LICENSE
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
// 
// VERSION: 1.2



(function($) {
  // Plugin info
  $.fn.focusMagic = function(options) {
	    var form = $(this);
    
		// On load
		form.find('label').not('.ignore').each(function(i){
			// Remove the label from the viewport, but leave it visible for screen readers
			$(this).css({'position':'absolute','left':'-9999px'});
			
			// Get the id the label is for
			var id = $(this).attr('for');
			var $id = $('#'+id);
			
			// Password Fields have to be treated differently
			if($id.attr('type') == 'password'){
				$id.after('<input type="text" class="FMREP '+$id.attr('class')+' id-'+id+'" value="'+$(this).html()+'" />');
				$id.next('input').hide();
			}
			
			// if the value is not set in the HTML (from the server)
			if($id.val().length == 0){
				if($id.attr('type') == 'password'){
					$id.hide().next('input').show();
				}else{
					$id.val($(this).html());
				}
			}
		});
		
		// On focus
	    form.find('input,textarea').focus(function(){
			var content = $(this).val();
			var $label = $(this).parent().find('label[for='+this.id+']');
			if($(this).hasClass('FMREP')){
				$(this).hide();
				var id = $(this).attr('class').split('id-')[1].split(' ')[0];
				$('#'+id).show().focus();
			}else if(content == $label.html()){
				$(this).val('');
			}
		
			// On Blur
	       	$(this).blur(function(){
	        	if( $(this).val() ==  '' && $label.hasClass('ignore') == false){
					if($(this).attr('type') == 'password'){
						$(this).hide().next('.FMREP').show();
					}else{
						$(this).val($label.html());
					}
	       		}
	       	});
	    });
	
		// On submit, if values are default values, make them ''.
		form.submit(function(){
			$(this).find('label').not('.ignore').each(function(){
				// Get the id the label is for
				var id = $(this).attr('for');
			
				// if the value is default (what we set)
				if($('#'+id).val() == $(this).html()){
					$('#'+id).val('');
				}
			});
		});
    
	    // private function for debugging
	    function debug($obj) {
	      if (window.console && window.console.log) {
	        window.console.log($obj);
	      }
	    }
  };
})(jQuery);