/* 
 * Based on the script by Cabel Sasser and ported to jQuery by Steve Smith of OrderedList.com. 
 * Rewritten for use with RapidWeaver Themes by Jonathan Head
 * of NimbleHost - http://nimblehost.com
 * Changes - Put FancyZoom in its own namespace, to help avoid javascript conflicts
 *		   - Removed IE6 specific functions
 *		   - Added jsPathto for RW functionality
 */
 
var $fz = jQuery.noConflict();
jQuery.fn.fancyZoom = function(options){
  
  var options   = options || {};
  var directory = options && options.directory ? options.directory : jsPathto + 'images';
  var zooming   = false;

  if ($fz('#zoom').length == 0) {
    var html = '<div id="zoom" style="display:none;position:relative;z-index:1000;font-size:1.2em;"> \
                  <table id="zoom_table" style="border-collapse:collapse; width:100%; height:100%;"> \
                    <tbody> \
                      <tr> \
                        <td class="tl" style="background:url(' + directory + '/tl.png) 0 0 no-repeat; width:20px height:20px; overflow:hidden;" /> \
                        <td class="tm" style="background:url(' + directory + '/tm.png) 0 0 repeat-x; height:20px; overflow:hidden;" /> \
                        <td class="tr" style="background:url(' + directory + '/tr.png) 100% 0 no-repeat; width:20px height:20px; overflow:hidden;" /> \
                      </tr> \
                      <tr> \
                        <td class="ml" style="background:url(' + directory + '/ml.png) 0 0 repeat-y; width:20px; overflow:hidden;" /> \
                        <td class="mm" style="background:#fff; vertical-align:top; padding:10px;"> \
                          <div id="zoom_content"> \
                          </div> \
                        </td> \
                        <td class="mr" style="background:url(' + directory + '/mr.png) 100% 0 repeat-y;  width:20px; overflow:hidden;" /> \
                      </tr> \
                      <tr> \
                        <td class="bl" style="background:url(' + directory + '/bl.png) 0 100% no-repeat; width:20px height:20px; overflow:hidden;" /> \
                        <td class="bm" style="background:url(' + directory + '/bm.png) 0 100% repeat-x; height:20px; overflow:hidden;" /> \
                        <td class="br" style="background:url(' + directory + '/br.png) 100% 100% no-repeat; width:20px height:20px; overflow:hidden;" /> \
                      </tr> \
                    </tbody> \
                  </table> \
                  <a href="#" title="Close" id="zoom_close" style="position:absolute; top:0; left:0;"> \
                    <img src="' + directory + '/closebox.png" alt="Close" style="border:none; margin:0; padding:0;" /> \
                  </a> \
                </div>';
                
    $fz('body').append(html);
    
    $fz('html').click(function(e){if($fz(e.target).parents('#zoom:visible').length == 0) hide();});
    $fz(document).keyup(function(event){
        if (event.keyCode == 27 && $fz('#zoom:visible').length > 0) hide();
    });
    
    $fz('#zoom_close').click(hide);
  }
  
  var zoom          = $fz('#zoom');
  var zoom_table    = $fz('#zoom_table');
  var zoom_close    = $fz('#zoom_close');
  var zoom_content  = $fz('#zoom_content');
  var middle_row    = $fz('td.ml,td.mm,td.mr');
  
  this.each(function(i) {
    $fz($fz(this).attr('href')).hide();
    $fz(this).click(show);
  });
  
  return this;
  
  function show(e) {
    if (zooming) return false;
		zooming         = true;
		var content_div = $fz($fz(this).attr('href'));
  		var zoom_width  = options.width;
		var zoom_height = options.height;
		
		var width       = window.innerWidth || (window.document.documentElement.clientWidth || window.document.body.clientWidth);
	  	var height      = window.innerHeight || (window.document.documentElement.clientHeight || window.document.body.clientHeight);
	  	var x           = window.pageXOffset || (window.document.documentElement.scrollLeft || window.document.body.scrollLeft);
	  	var y           = window.pageYOffset || (window.document.documentElement.scrollTop || window.document.body.scrollTop);
	  	var window_size = {'width':width, 'height':height, 'x':x, 'y':y}
	
		var width              = (zoom_width || content_div.width()) + 60;
		var height             = (zoom_height || content_div.height()) + 60;
		var d                  = window_size;
		
		// ensure that newTop is at least 0 so it doesn't hide close button
		var newTop             = Math.max((d.height/2) - (height/2) + y, 0);
		var newLeft            = (d.width/2) - (width/2);
		var curTop             = e.pageY;
		var curLeft            = e.pageX;
		
		zoom_close.attr('curTop', curTop);
		zoom_close.attr('curLeft', curLeft);
		zoom_close.attr('scaleImg', options.scaleImg ? 'true' : 'false');
		
    $fz('#zoom').hide().css({
			position	: 'absolute',
			top			: curTop + 'px',
			left		: curLeft + 'px',
			width     	: '1px',
			height    	: '1px'
		});
    
    zoom_close.hide();
    
    if (options.closeOnClick) {
      $fz('#zoom').click(hide);
    }
    
		if (options.scaleImg) {
  		zoom_content.html(content_div.html());
  		$fz('#zoom_content img').css('width', '100%');
		} else {
		  zoom_content.html('');
		}
    
    $fz('#zoom').animate({
      top     : newTop + 'px',
      left    : newLeft + 'px',
      opacity : "show",
      width   : width,
      height  : height
    }, 500, null, function() {
      if (options.scaleImg != true) {
    		zoom_content.html(content_div.html());
  		}
			zoom_close.show();
			zooming = false;
    })
    return false;
  }
  
  function hide() {
    if (zooming) return false;
		zooming         = true;
	  $fz('#zoom').unbind('click');
		if (zoom_close.attr('scaleImg') != 'true') {
  		zoom_content.html('');
		}
		zoom_close.hide();
		$fz('#zoom').animate({
      top     : zoom_close.attr('curTop') + 'px',
      left    : zoom_close.attr('curLeft') + 'px',
      opacity : "hide",
      width   : '1px',
      height  : '1px'
    }, 500, null, function() {
      if (zoom_close.attr('scaleImg') == 'true') {
    		zoom_content.html('');
  		}
			zooming = false;
    });
    return false;
  }

}

$fz(document).ready(function(){
	if((navigator.userAgent.match(/iPhone/i))||(navigator.userAgent.match(/iPod/i))||(navigator.userAgent.match(/Android/))||(navigator.userAgent.match(/webOS/))){
		$fz(".zoom").fancyZoom({width: 250});
	} else {
		$fz(".zoom").fancyZoom();
	}
});