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/*!
* Print button for Buttons and DataTables.
* 2016 SpryMedia Ltd - datatables.net/license
*/
(function( factory ){
if ( typeof define === 'function' && define.amd ) {
// AMD
define( ['jquery', 'datatables.net', 'datatables.net-buttons'], function ( $ ) {
return factory( $, window, document );
} );
}
else if ( typeof exports === 'object' ) {
// CommonJS
module.exports = function (root, $) {
if ( ! root ) {
root = window;
}
if ( ! $ || ! $.fn.dataTable ) {
$ = require('datatables.net')(root, $).$;
}
if ( ! $.fn.dataTable.Buttons ) {
require('datatables.net-buttons')(root, $);
}
return factory( $, root, root.document );
};
}
else {
// Browser
factory( jQuery, window, document );
}
}(function( $, window, document, undefined ) {
'use strict';
var DataTable = $.fn.dataTable;
var _link = document.createElement( 'a' );
/**
* Clone link and style tags, taking into account the need to change the source
* path.
*
* @param {node} el Element to convert
*/
var _styleToAbs = function( el ) {
var url;
var clone = $(el).clone()[0];
var linkHost;
if ( clone.nodeName.toLowerCase() === 'link' ) {
clone.href = _relToAbs( clone.href );
}
return clone.outerHTML;
};
/**
* Convert a URL from a relative to an absolute address so it will work
* correctly in the popup window which has no base URL.
*
* @param {string} href URL
*/
var _relToAbs = function( href ) {
// Assign to a link on the original page so the browser will do all the
// hard work of figuring out where the file actually is
_link.href = href;
var linkHost = _link.host;
// IE doesn't have a trailing slash on the host
// Chrome has it on the pathname
if ( linkHost.indexOf('/') === -1 && _link.pathname.indexOf('/') !== 0) {
linkHost += '/';
}
return _link.protocol+"//"+linkHost+_link.pathname+_link.search;
};
DataTable.ext.buttons.print = {
className: 'buttons-print',
text: function ( dt ) {
return dt.i18n( 'buttons.print', 'Print' );
},
action: function ( e, dt, button, config ) {
var data = dt.buttons.exportData(
$.extend( {decodeEntities: false}, config.exportOptions ) // XSS protection
);
var exportInfo = dt.buttons.exportInfo( config );
var columnClasses = dt
.columns( config.exportOptions.columns )
.flatten()
.map( function (idx) {
return dt.settings()[0].aoColumns[dt.column(idx).index()].sClass;
} )
.toArray();
var addRow = function ( d, tag ) {
var str = '<tr>';
for ( var i=0, ien=d.length ; i<ien ; i++ ) {
// null and undefined aren't useful in the print output
var dataOut = d[i] === null || d[i] === undefined ?
'' :
d[i];
var classAttr = columnClasses[i] ?
'class="'+columnClasses[i]+'"' :
'';
str += '<'+tag+' '+classAttr+'>'+dataOut+'</'+tag+'>';
}
return str + '</tr>';
};
// Construct a table for printing
var html = '<table class="'+dt.table().node().className+'">';
if ( config.header ) {
html += '<thead>'+ addRow( data.header, 'th' ) +'</thead>';
}
html += '<tbody>';
for ( var i=0, ien=data.body.length ; i<ien ; i++ ) {
html += addRow( data.body[i], 'td' );
}
html += '</tbody>';
if ( config.footer && data.footer ) {
html += '<tfoot>'+ addRow( data.footer, 'th' ) +'</tfoot>';
}
html += '</table>';
// Open a new window for the printable table
var win = window.open( '', '' );
win.document.close();
// Inject the title and also a copy of the style and link tags from this
// document so the table can retain its base styling. Note that we have
// to use string manipulation as IE won't allow elements to be created
// in the host document and then appended to the new window.
var head = '<title>'+exportInfo.title+'</title>';
$('style, link').each( function () {
head += _styleToAbs( this );
} );
try {
win.document.head.innerHTML = head; // Work around for Edge
}
catch (e) {
$(win.document.head).html( head ); // Old IE
}
// Inject the table and other surrounding information
win.document.body.innerHTML =
'<h1>'+exportInfo.title+'</h1>'+
'<div>'+(exportInfo.messageTop || '')+'</div>'+
html+
'<div>'+(exportInfo.messageBottom || '')+'</div>';
$(win.document.body).addClass('dt-print-view');
$('img', win.document.body).each( function ( i, img ) {
img.setAttribute( 'src', _relToAbs( img.getAttribute('src') ) );
} );
if ( config.customize ) {
config.customize( win, config, dt );
}
// Allow stylesheets time to load
var autoPrint = function () {
if ( config.autoPrint ) {
win.print(); // blocking - so close will not
win.close(); // execute until this is done
}
};
if ( navigator.userAgent.match(/Trident\/\d.\d/) ) { // IE needs to call this without a setTimeout
autoPrint();
}
else {
win.setTimeout( autoPrint, 1000 );
}
},
title: '*',
messageTop: '*',
messageBottom: '*',
exportOptions: {},
header: true,
footer: false,
autoPrint: true,
customize: null
};
return DataTable.Buttons;
}));
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