https://trimex.hu/Scripts/jquery.PrintArea.js

1/**
2 *  Version 2.4.0 Copyright (C) 2013
3 *  Tested in IE 11, FF 28.0 and Chrome 33.0.1750.154
4 *  No official support for other browsers, but will TRY to accommodate challenges in other browsers.
5 *  Example:
6 *      Print Button: <div id="print_button">Print</div>
7 *      Print Area  : <div class="PrintArea" id="MyId" class="MyClass"> ... html ... </div>
8 *      Javascript  : <script>
9 *                       $("div#print_button").click(function(){
10 *                           $("div.PrintArea").printArea( [OPTIONS] );
11 *                       });
12 *                     </script>
13 *  options are passed as json (example: {mode: "popup", popClose: false})
14 *
15 *  {OPTIONS}   | [type]     | (default), values      | Explanation
16 *  ---------   | ---------  | ---------------------- | -----------
17 *  @mode       | [string]   | (iframe),popup         | printable window is either iframe or browser popup
18 *  @popHt      | [number]   | (500)                  | popup window height
19 *  @popWd      | [number]   | (400)                  | popup window width
20 *  @popX       | [number]   | (500)                  | popup window screen X position
21 *  @popY       | [number]   | (500)                  | popup window screen Y position
22 *  @popTitle   | [string]   | ('')                   | popup window title element
23 *  @popClose   | [boolean]  | (false),true           | popup window close after printing
24 *  @extraCss   | [string]   | ('')                   | comma separated list of extra css to include
25 *  @retainAttr | [string[]] | ["id","class","style"] | string array of attributes to retain for the containment area. (ie: id, style, class)
26 *  @standard   | [string]   | strict, loose, (html5) | Only for popup. For html 4.01, strict or loose document standard, or html 5 standard
27 *  @extraHead  | [string]   | ('')                   | comma separated list of extra elements to be appended to the head tag
28 */
29(function($) {
30    var counter = 0;
31    var modes = { iframe : "iframe", popup : "popup" };
32    var standards = { strict : "strict", loose : "loose", html5 : "html5" };
33    var defaults = { mode       : modes.iframe,
34                     standard   : standards.html5,
35                     popHt      : 500,
36                     popWd      : 400,
37                     popX       : 200,
38                     popY       : 200,
39                     popTitle   : '',
40                     popClose   : false,
41                     extraCss   : '',
42                     extraHead  : '',
43                     retainAttr : ["id","class","style"] };
44
45    var settings = {};//global settings
46
47    $.fn.printArea = function( options )
48    {
49        $.extend( settings, defaults, options );
50
51        counter++;
52        var idPrefix = "printArea_";
53        $( "[id^=" + idPrefix + "]" ).remove();
54
55        settings.id = idPrefix + counter;
56
57        var $printSource = $(this);
58
59        var PrintAreaWindow = PrintArea.getPrintWindow();
60
61        PrintArea.write( PrintAreaWindow.doc, $printSource );
62
63        setTimeout( function () { PrintArea.print( PrintAreaWindow ); }, 1000 );
64    };
65
66    var PrintArea = {
67        print : function( PAWindow ) {
68            var paWindow = PAWindow.win;
69
70            $(PAWindow.doc).ready(function(){
71                paWindow.focus();
72                paWindow.print();
73
74                if ( settings.mode == modes.popup && settings.popClose )
75                    setTimeout(function() { paWindow.close(); }, 2000);
76            });
77        },
78        write : function ( PADocument, $ele ) {
79            PADocument.open();
80            PADocument.write( PrintArea.docType() + "<html>" + PrintArea.getHead() + PrintArea.getBody( $ele ) + "</html>" );
81            PADocument.close();
82        },
83        docType : function() {
84            if ( settings.mode == modes.iframe ) return "";
85
86            if ( settings.standard == standards.html5 ) return "<!DOCTYPE html>";
87
88            var transitional = settings.standard == standards.loose ? " Transitional" : "";
89            var dtd = settings.standard == standards.loose ? "loose" : "strict";
90
91            return '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01' + transitional + '//EN" "http://www.w3.org/TR/html4/' + dtd +  '.dtd">';
92        },
93        getHead : function() {
94            var extraHead = "";
95            var links = "";
96
97            if ( settings.extraHead ) settings.extraHead.replace( /([^,]+)/g, function(m){ extraHead += m });
98
99            $(document).find("link")
100                .filter(function(){ // Requirement: <link> element MUST have rel="stylesheet" to be considered in print document
101                        var relAttr = $(this).attr("rel");
102                        return ($.type(relAttr) === 'undefined') == false && relAttr.toLowerCase() == 'stylesheet';
103                    })
104                .filter(function(){ // Include if media is undefined, empty, print or all
105                        var mediaAttr = $(this).attr("media");
106                        return $.type(mediaAttr) === 'undefined' || mediaAttr == "" || mediaAttr.toLowerCase() == 'print' || mediaAttr.toLowerCase() == 'all'
107                    })
108                .each(function(){
109                        links += '<link type="text/css" rel="stylesheet" href="' + $(this).attr("href") + '" >';
110                    });

111            if ( settings.extraCss ) settings.extraCss.replace( /([^,\s]+)/g, function(m){ links += '<link type="text/css" rel="stylesheet" href="' + m + '">' });
112
113            return "<head><title>" + settings.popTitle + "</title>" + extraHead + links + "</head>";
114        },
115        getBody : function ( elements ) {
116            var htm = "";
117            var attrs = settings.retainAttr;
118            elements.each(function() {
119                var ele = PrintArea.getFormData( $(this) );
120
121                var attributes = ""
122                for ( var x = 0; x < attrs.length; x++ )
123                {
124                    var eleAttr = $(ele).attr( attrs[x] );
125                    if ( eleAttr ) attributes += (attributes.length > 0 ? " ":"") + attrs[x] + "='" + eleAttr + "'";
126                }
127
128                htm += '<div ' + attributes + '>' + $(ele).html() + '</div>';
129            });
130
131            return "<body>" + htm + "</body>";
132        },
133        getFormData : function ( ele ) {
134            var copy = ele.clone();
135            var copiedInputs = $("input,select,textarea", copy);
136            $("input,select,textarea", ele).each(function( i ){
137                var typeInput = $(this).attr("type");
138                if ($.type(typeInput) === 'undefined') typeInput = $(this).is("select") ? "select" : $(this).is("textarea") ? "textarea" : "";
139                var copiedInput = copiedInputs.eq( i );
140
141                if ( typeInput == "radio" || typeInput == "checkbox" ) copiedInput.attr( "checked", $(this).is(":checked") );
142                else if ( typeInput == "text" ) copiedInput.attr( "value", $(this).val() );
143                else if ( typeInput == "select" )
144                    $(this).find( "option" ).each( function( i ) {
145                        if ( $(this).is(":selected") ) $("option", copiedInput).eq( i ).attr( "selected", true );
146                    });
147                else if ( typeInput == "textarea" ) copiedInput.text( $(this).val() );
148            });
149            return copy;
150        },
151        getPrintWindow : function () {
152            switch ( settings.mode )
153            {
154                case modes.iframe :
155                    var f = new PrintArea.Iframe();
156                    return { win : f.contentWindow || f, doc : f.doc };
157                case modes.popup :
158                    var p = new PrintArea.Popup();
159                    return { win : p, doc : p.doc };
160            }
161        },
162        Iframe : function () {
163            var frameId = settings.id;
164            var iframeStyle = 'border:0;position:absolute;width:0px;height:0px;right:0px;top:0px;';
165            var iframe;
166
167            try
168            {
169                iframe = document.createElement('iframe');
170                document.body.appendChild(iframe);
171                $(iframe).attr({ style: iframeStyle, id: frameId, src: "#" + new Date().getTime() });
172                iframe.doc = null;
173                iframe.doc = iframe.contentDocument ? iframe.contentDocument : ( iframe.contentWindow ? iframe.contentWindow.document : iframe.document);
174            }
175            catch( e ) { throw e + ". iframes may not be supported in this browser."; }
176
177            if ( iframe.doc == null ) throw "Cannot find document.";
178
179            return iframe;
180        },
181        Popup : function () {
182            var windowAttr = "location=yes,statusbar=no,directories=no,menubar=no,titlebar=no,toolbar=no,dependent=no";
183            windowAttr += ",width=" + settings.popWd + ",height=" + settings.popHt;
184            windowAttr += ",resizable=yes,screenX=" + settings.popX + ",screenY=" + settings.popY + ",personalbar=no,scrollbars=yes";
185
186            var newWin = window.open( "", "_blank",  windowAttr );
187
188            newWin.doc = newWin.document;
189
190            return newWin;
191        }
192    };
193})(jQuery);