/**
 *  Version 2.1
 *      -Contributors: "mindinquiring" : filter to exclude any stylesheet other than print.
 *      -Contributors: DEGANDT Clement - Mars 2011 - Maqprint
 *  Tested ONLY in IE 8 and FF 3.6. No official support for other browsers, but will
 *      TRY to accomodate challenges in other browsers.
 *  Example:
 *      Print Button: 	<div id="print_button">Print</div>
 *						<div id="maqprinter"></div>
 *      Print Areas  : 	<div class="printable"> ... html ... </div>
 *      			 	<div class="printable"> ... another html ... </div>
 *      Javascript  : 	<script>
 *                       	$("#print_button").click(function(){
 *								$(".printable").clone().appendTo('#maqprinter');							
 *                           	$("#maqprinter").maqprinter( [OPTIONS] );
 *								$("#maqprinter").html('');
 *                       	});
 *                     	</script>
 *  options are passed as json (json example: {mode: "popup", popClose: false})
 *
 *  {OPTIONS} | [type]    | (default), values      | Explanation
 *  --------- | --------- | ---------------------- | -----------
 *  @mode     | [string]  | ("iframe"),"popup"     | printable window is either iframe or browser popup
 *  @popHt    | [number]  | (500)                  | popup window height
 *  @popWd    | [number]  | (400)                  | popup window width
 *  @popX     | [number]  | (500)                  | popup window screen X position
 *  @popY     | [number]  | (500)                  | popup window screen Y position
 *  @popTitle | [string]  | ('')                   | popup window title element
 *  @popClose | [boolean] | (false),true           | popup window close after printing
 *  @showHide | [boolean] | (true),false           | print also or not the hidden elements
 *  @strict   | [boolean] | (undefined),true,false | strict or loose(Transitional) html 4.01 document standard or undefined to not include at all (only for popup option)
 */
(function($) {
    var counter 			= 0;
    var modes 				= { iframe : "iframe", popup : "popup" };
    var defaults 			= { mode     	: modes.iframe,
								popHt    	: 500,
								popWd    	: 400,
								popX     	: 200,
								popY     	: 200,
								popTitle 	: '',
								popClose 	: false,
								showHide 	: true };

    var settings 			= {};//global settings

    $.fn.maqprinter 		= function( options )
        {
            $.extend( settings, defaults, options );
            counter++;
            var idPrefix 	= "printArea_";
            $( "[id^=" + idPrefix + "]" ).remove();
            var ele 		= getFormData( $(this) );
            settings.id 	= idPrefix + counter;
            var writeDoc;
            var printWindow;
            switch ( settings.mode )
            {
                case modes.iframe : 	var f 		= new Iframe();
										writeDoc 	= f.doc;
										printWindow = f.contentWindow || f;
										break;
										
                case modes.popup : 		printWindow = new Popup();
										writeDoc 	= printWindow.doc;
										break;
            }
            writeDoc	.open();
            writeDoc	.write( docType() + "<html>" + getHead() + getBody(ele) + "</html>" );
            writeDoc	.close();
            printWindow	.focus();
            printWindow	.window.print();
            if ( settings.mode == modes.popup && settings.popClose ) 	{ printWindow.close(); }
        }

    function docType()
    {
        if ( settings.mode == modes.iframe || !settings.strict ) 		{ return ""; }
        var standard 		= settings.strict == false ? " Trasitional" : "";
        var dtd 			= settings.strict == false ? "loose" : "strict";
        return '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01' + standard + '//EN" "http://www.w3.org/TR/html4/' + dtd +  '.dtd">';
    }

    function getHead()
    {
        var head 			= "<head><title>" + settings.popTitle + "</title>";
        $(document).find("link")
            .filter(function(){
          		return $(this).attr("rel").toLowerCase() == "stylesheet";
           	})
            .filter(function(){
				var media 	= $(this).attr("media");
				return (media.toLowerCase() == "" || media.toLowerCase() == "print");
           	})
            .each(function(){
         		head 		+= '<link type="text/css" rel="stylesheet" href="' + $(this).attr("href") + '" >';
           	});
        head 				+= "</head>";
        return head;
    }

    function getBody( printElement )
    {
		if ( settings.showHide ) 										{ $(printElement).find('div:hidden').css('display','block'); }
        return '<body><div class="' + $(printElement).attr("class") + '">' + $(printElement).html() + '</div></body>';
    }

    function getFormData( ele )
    {
        $("input,select,textarea", ele).each(function(){
            var type 		= $(this).attr("type");
            if ( type == "radio" || type == "checkbox" )
            {
                if ( $(this).is(":not(:checked)") ) 					{ this.removeAttribute("checked"); }
                else 													{ this.setAttribute( "checked", true ); }
            }
            else if ( type == "text" )
			{
                this.setAttribute( "value", $(this).val() );
			}
            else if ( type == "select-multiple" || type == "select-one" )
			{
                $(this).find( "option" ).each( function() {
                    if ( $(this).is(":not(:selected)") ) 				{ this.removeAttribute("selected"); }
                    else 												{ this.setAttribute( "selected", true ); }
                });
			}
            else if ( type == "textarea" )
            {
                var v = $(this).attr( "value" );
                if ($.browser.mozilla)
                {
                    if (this.firstChild) 								{ this.firstChild.textContent 	= v; }
                    else 												{ this.textContent 				= v; }
                }
                else 
				{
					this.innerHTML = v;
				}
            }
        });
        return ele;
    }

    function Iframe()
    {
        var frameId 		= settings.id;
        var iframeStyle 	= 'border:0;position:absolute;width:0px;height:0px;left:0px;top:0px;';
        var iframe;
        try
        {
            iframe 			= document.createElement('iframe');
            document.body.appendChild(iframe);
            $(iframe).attr({ style: iframeStyle, id: frameId, src: "" });
            iframe.doc 		= null;
            iframe.doc 		= iframe.contentDocument ? iframe.contentDocument : ( iframe.contentWindow ? iframe.contentWindow.document : iframe.document);
        }
        catch( e ) 														{ throw e + ". iframes may not be supported in this browser."; }
        if ( iframe.doc == null ) 										{ throw "Cannot find document."; }
        return iframe;
    }

    function Popup()
    {
        var windowAttr 		= "location=yes,statusbar=no,directories=no,menubar=no,titlebar=no,toolbar=no,dependent=no";
        windowAttr 			+= ",width=" + settings.popWd + ",height=" + settings.popHt;
        windowAttr 			+= ",resizable=yes,screenX=" + settings.popX + ",screenY=" + settings.popY + ",personalbar=no,scrollbars=no";
        var newWin 			= window.open( "", "_blank",  windowAttr );
        newWin.doc 			= newWin.document;
        return newWin;
    }
})(jQuery);
