/*!
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* Print button for Buttons and DataTables.
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* 2015 SpryMedia Ltd - datatables.net/license
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*/
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(function($, DataTable) {
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"use strict";
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var _link = document.createElement( 'a' );
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/**
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* Convert a `link` tag's URL from a relative to an absolute address so it will
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* work correctly in the popup window which has no base URL.
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*
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* @param {node} el Element to convert
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*/
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var _relToAbs = function( el ) {
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var url;
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var clone = $(el).clone()[0];
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var linkHost;
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if ( clone.nodeName.toLowerCase() === 'link' ) {
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_link.href = clone.href;
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linkHost = _link.host;
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// IE doesn't have a trailing slash on the host
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// Chrome has it on the pathname
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if ( linkHost.indexOf('/') === -1 && _link.pathname.indexOf('/') !== 0) {
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linkHost += '/';
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}
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clone.href = _link.protocol+"//"+linkHost+_link.pathname+_link.search;
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}
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return clone.outerHTML;
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};
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DataTable.ext.buttons.print = {
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className: 'buttons-print',
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text: function ( dt ) {
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return dt.i18n( 'buttons.print', 'Print' );
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},
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action: function ( e, dt, button, config ) {
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var data = dt.buttons.exportData( config.exportOptions );
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var addRow = function ( d, tag ) {
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var str = '<tr>';
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for ( var i=0, ien=d.length ; i<ien ; i++ ) {
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str += '<'+tag+'>'+d[i]+'</'+tag+'>';
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}
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return str + '</tr>';
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};
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// Construct a table for printing
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var html = '<table class="'+dt.table().node().className+'">';
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if ( config.header ) {
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html += '<thead>'+ addRow( data.header, 'th' ) +'</thead>';
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}
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html += '<tbody>';
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for ( var i=0, ien=data.body.length ; i<ien ; i++ ) {
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html += addRow( data.body[i], 'td' );
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}
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html += '</tbody>';
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if ( config.footer ) {
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html += '<thead>'+ addRow( data.footer, 'th' ) +'</thead>';
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}
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// Open a new window for the printable table
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var win = window.open( '', '' );
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var title = config.title.replace( '*', $('title').text() );
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win.document.close();
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// Inject the title and also a copy of the style and link tags from this
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// document so the table can retain its base styling. Note that we have
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// to use string manipulation as IE won't allow elements to be created
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// in the host document and then appended to the new window.
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var head = '<title>'+title+'</title>';
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$('style, link').each( function () {
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head += _relToAbs( this );
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} );
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$(win.document.head).html( head );
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// Inject the table and other surrounding information
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$(win.document.body).html(
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'<h1>'+title+'</h1>'+
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'<div>'+config.message+'</div>'+
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html
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);
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if ( config.customize ) {
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config.customize( win );
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}
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setTimeout( function () {
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if ( config.autoPrint ) {
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win.print(); // blocking - so close will not
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win.close(); // execute until this is done
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}
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}, 250 );
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},
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title: '*',
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message: '',
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exportOptions: {},
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header: true,
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footer: false,
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autoPrint: true,
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customize: null
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};
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})(jQuery, jQuery.fn.dataTable);
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