(function($){
'use strict';
function jQueryCloneWithSelectAndTextAreaValues(
elmToClone, withDataAndEvents, deepWithDataAndEvents){
var $elmToClone=$(elmToClone),
$result=$elmToClone.clone(withDataAndEvents, deepWithDataAndEvents),
$myTextareas=$elmToClone.find('textarea').
add($elmToClone.filter('textarea')),
$resultTextareas=$result.find('textarea').
add($result.filter('textarea')),
$mySelects=$elmToClone.find('select').
add($elmToClone.filter('select')),
$resultSelects=$result.find('select').add($result.filter('select')),
$myCanvas=$elmToClone.find('canvas').
add($elmToClone.filter('canvas')),
$resultCanvas=$result.find('canvas').add($result.filter('canvas')),
i, l, j, m, myCanvasContext;
for (i=0, l=$myTextareas.length; i < l; ++i){
$($resultTextareas[i]).val($($myTextareas[i]).val());
}
for (i=0, l=$mySelects.length; i < l; ++i){
for (j=0, m=$mySelects[i].options.length; j < m; ++j){
if($mySelects[i].options[j].selected===true){
$resultSelects[i].options[j].selected=true;
}}
}
for (i=0, l=$myCanvas.length; i < l; ++i){
myCanvasContext=$myCanvas[i].getContext('2d');
if(myCanvasContext){
$resultCanvas[i].getContext('2d').drawImage($myCanvas[i], 0, 0);
$($resultCanvas[i]).
attr('data-jquery-print', myCanvasContext.canvas.toDataURL());
}}
return $result;
}
function getjQueryObject(string){
var jqObj=$('');
try {
jqObj=jQueryCloneWithSelectAndTextAreaValues(string);
} catch (e){
jqObj=$('<span />').html(string);
}
return jqObj;
}
function printFrame(frameWindow, content, options){
var def=$.Deferred();
try {
frameWindow=frameWindow.contentWindow||frameWindow.contentDocument ||
frameWindow;
try {
frameWindow.resizeTo(window.innerWidth, window.innerHeight);
} catch (err){
console.warn(err);
}
var wdoc=frameWindow.document||frameWindow.contentDocument ||
frameWindow;
if(options.doctype){
wdoc.write(options.doctype);
}
wdoc.write(content);
try {
var canvas=wdoc.querySelectorAll('canvas');
for (var i=0; i < canvas.length; i++){
var ctx=canvas[i].getContext('2d');
var image=new Image();
image.onload=function(){
ctx.drawImage(image, 0, 0);
};
image.src=canvas[i].getAttribute('data-jquery-print');
}} catch (err){
console.warn(err);
}
wdoc.close();
var printed=false,
callPrint=function(){
if(printed){
return;
}
frameWindow.focus();
try {
if(!frameWindow.document.execCommand ('print', false, null)){
frameWindow.print();
}
$('body').focus();
} catch (e){
frameWindow.print();
}
frameWindow.close();
printed=true;
def.resolve();
};
$(frameWindow).on('load', callPrint);
setTimeout(callPrint, options.timeout);
} catch (err){
def.reject(err);
}
return def;
}
function printContentInIFrame(content, options){
var $iframe=$(options.iframe + '');
var iframeCount=$iframe.length;
if(iframeCount===0){
$iframe=$('<iframe height="0" width="0" border="0" wmode="Opaque"/>').
prependTo('body').
css({
'position': 'absolute',
'top': -999,
'left': -999,
});
}
var frameWindow=$iframe.get(0);
return printFrame(frameWindow, content, options).done(function(){
setTimeout(function(){
if(iframeCount===0){
$iframe.remove();
}}, 1000);
}).fail(function(err){
console.error('Failed to print from iframe', err);
printContentInNewWindow(content, options);
}).always(function(){
try {
options.deferred.resolve();
} catch (err){
console.warn('Error notifying deferred', err);
}});
}
function printContentInNewWindow(content, options){
var frameWindow=window.open();
return printFrame(frameWindow, content, options).always(function(){
try {
options.deferred.resolve();
} catch (err){
console.warn('Error notifying deferred', err);
}});
}
function isNode(o){
return !!(typeof Node==='object' ? o instanceof Node:o&&typeof o==='object'&&typeof o.nodeType==='number'&&typeof o.nodeName==='string');
}
$.print=$.fn.print=function(){
var options, $this, self=this;
if(self instanceof $){
self=self.get(0);
}
if(isNode(self)){
$this=$(self);
if(arguments.length > 0){
options=arguments[0];
}}else{
if(arguments.length > 0){
$this=$(arguments[0]);
if(isNode($this[0])){
if(arguments.length > 1){
options=arguments[1];
}}else{
options=arguments[0];
$this=$('html');
}}else{
$this=$('html');
}}
var defaults={
globalStyles: true,
mediaPrint: false,
stylesheet: null,
noPrintSelector: '.no-print',
iframe: true,
append: null,
prepend: null,
manuallyCopyFormValues: true,
deferred: $.Deferred(),
timeout: 750,
title: null,
doctype: '<!doctype html>',
};
options=$.extend({}, defaults, (options||{}));
var $styles=$('');
if(options.globalStyles){
$styles=$('style, link, meta, base, title');
}else if(options.mediaPrint){
$styles=$('link[media=print]');
}
if(options.stylesheet){
if(!(($.isArray ? $.isArray:Array.isArray)(options.stylesheet))){
options.stylesheet=[options.stylesheet];
}
for (var i=0; i < options.stylesheet.length; i++){
$styles=$.merge($styles,
$('<link rel="stylesheet" href="' + options.stylesheet[i] + '">'));
}}
var copy=jQueryCloneWithSelectAndTextAreaValues($this, true, true);
copy=$('<span/>').append(copy);
copy.find(options.noPrintSelector).remove();
copy.append(jQueryCloneWithSelectAndTextAreaValues($styles));
if(options.title){
var title=$('title', copy);
if(title.length===0){
title=$('<title />');
copy.append(title);
}
title.text(options.title);
}
copy.append(getjQueryObject(options.append));
copy.prepend(getjQueryObject(options.prepend));
if(options.manuallyCopyFormValues){
copy.find('input').each(function(){
var $field=$(this);
if($field.is('[type=\'radio\']')||$field.is('[type=\'checkbox\']')){
if($field.prop('checked')){
$field.attr('checked', 'checked');
}}else{
$field.attr('value', $field.val());
}});
copy.find('select').each(function(){
var $field=$(this);
$field.find(':selected').attr('selected', 'selected');
});
copy.find('textarea').each(function(){
var $field=$(this);
$field.text($field.val());
});
}
var content=copy.html();
try {
options.deferred.notify('generated_markup', content, copy);
} catch (err){
console.warn('Error notifying deferred', err);
}
copy.remove();
if(options.iframe){
try {
printContentInIFrame(content, options);
} catch (e){
console.error('Failed to print from iframe', e.stack, e.message);
printContentInNewWindow(content, options);
}}else{
printContentInNewWindow(content, options);
}
return this;
};})(jQuery);