jquery.jqprint-0.3.js

// -----------------------------------------------------------------------
// Eros Fratini - eros@recoding.it
// jqprint 0.3
//
// - 07/08/2014 - added removal of javascript, added cleanup (bmass02), updated Opera support (used from Gemorroj's fork)
// - 19/06/2009 - some new implementations, added Opera support
// - 11/05/2009 - first sketch
//
// Printing plug-in for jQuery, evolution of jPrintArea: http://plugins.jquery.com/project/jPrintArea
// requires jQuery 1.11.x
//
// Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
//------------------------------------------------------------------------

(function($) {
    var opt;

    $.fn.jqprint = function (options) {
        opt = $.extend({}, $.fn.jqprint.defaults, options);

        var $element = (this instanceof jQuery) ? this : $(this);
        var isOpera = window.opera !== undefined
        var doc
        
        if (isOpera) 
        { 
            var tab = window.open("","jqPrint-preview");
            tab.document.open();

            doc = tab.document;
        }
        else 
        {
            var $iframe = $("<iframe  />");
        
            if (!opt.debug) { $iframe.css({ position: "absolute", width: "0px", height: "0px", left: "-600px", top: "-600px" }); }

            $iframe.appendTo("body");
            doc = $iframe[0].contentWindow.document;
        }
        
        if (opt.importCSS)
        {
            if ($("link[media=print]").length > 0) 
            {
                $("link[media=print]").each( function() {
                    doc.write("<link type='text/css' rel='stylesheet' href='" + $(this).attr("href") + "' media='print' />");
                });
            }
            else 
            {
                $("link").each( function() {
                    doc.write("<link type='text/css' rel='stylesheet' href='" + $(this).attr("href") + "' />");
                });
            }
        }
        
        doc.write($element.prepare_and_load(opt.printContainer));
        
        doc.close();
        
        (isOpera ? tab : $iframe[0].contentWindow).focus();
        setTimeout( function() { (isOpera ? tab : $iframe[0].contentWindow).print(); (opt.operaSupport ? tab.close() : $iframe.remove()) }, 1000);
    }
    
    $.fn.jqprint.defaults = {
		    debug: false,
		    importCSS: true, 
		    printContainer: true
	  };
    
    //Prepare by removing unwanted javascript in script tags to prevent scope errors with JQuery
    $.fn.prepare_and_load = function(withPrintContainer) {
        $this = $(this)
        $('script').remove();
        return (withPrintContainer ? $this.outer() : $this.html())
    }

    // Thanks to 9__, found at http://users.livejournal.com/9__/380664.html
    jQuery.fn.outer = function() {
        return $($('<div></div>').html(this.clone())).html();
    } 
})(jQuery);