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/*
* printThis v1.9.0
* @desc Printing plug-in for jQuery
* @author Jason Day
*
* Resources (based on) :
* jPrintArea: http://plugins.jquery.com/project/jPrintArea
* jqPrint: https://github.com/permanenttourist/jquery.jqprint
* Ben Nadal: http://www.bennadel.com/blog/1591-Ask-Ben-Print-Part-Of-A-Web-Page-With-jQuery.htm
*
* Licensed under the MIT licence:
* http://www.opensource.org/licenses/mit-license.php
*
* (c) Jason Day 2015
*
* Usage:
*
* $("#mySelector").printThis({
* debug: false, * show the iframe for debugging
* importCSS: true, * import page CSS
* importStyle: false, * import style tags
* printContainer: true, * grab outer container as well as the contents of the selector
* loadCSS: "path/to/my.css", * path to additional css file - us an array [] for multiple
* pageTitle: "", * add title to print page
* removeInline: false, * remove all inline styles from print elements
* printDelay: 333, * variable print delay
* header: null, * prefix to html
* footer: null, * postfix to html
* base: false, * preserve the BASE tag, or accept a string for the URL
* formValues: true * preserve input/form values
* canvas: false * copy canvas elements (experimental)
* doctypeString: '...' * enter a different doctype for older markup
* });
*
* Notes:
* - the loadCSS will load additional css (with or without @media print) into the iframe, adjusting layout
*
*/
( function( $ ) {
var opt;
$.fn.printThis = function( options ) {
opt = $.extend( {}, $.fn.printThis.defaults, options );
var $element = this instanceof jQuery ? this : $( this );
var strFrameName = 'printThis-' + new Date().getTime();
if ( window.location.hostname !== document.domain && navigator.userAgent.match( /msie/i ) ) {
// Ugly IE hacks due to IE not inheriting document.domain from parent
// checks if document.domain is set by comparing the host name against document.domain
var iframeSrc =
'javascript:document.write("<head><script>document.domain=\\"' +
document.domain +
'\\";</s' +
'cript></head><body></body>")';
var printI = document.createElement( 'iframe' );
printI.name = 'printIframe';
printI.id = strFrameName;
printI.className = 'MSIE';
document.body.appendChild( printI );
printI.src = iframeSrc;
} else {
// other browsers inherit document.domain, and IE works if document.domain is not explicitly set
var $frame = $( "<iframe id='" + strFrameName + "' name='printIframe' />" );
$frame.appendTo( 'body' );
}
var $iframe = $( '#' + strFrameName );
// show frame if in debug mode
if ( ! opt.debug )
$iframe.css( {
position: 'absolute',
width: '0px',
height: '0px',
left: '-600px',
top: '-600px',
} );
// $iframe.ready() and $iframe.load were inconsistent between browsers
setTimeout( function() {
// Add doctype to fix the style difference between printing and render
function setDocType( $iframe, doctype ) {
var win, doc;
win = $iframe.get( 0 );
win = win.contentWindow || win.contentDocument || win;
doc = win.document || win.contentDocument || win;
doc.open();
doc.write( doctype );
doc.close();
}
if ( opt.doctypeString ) {
setDocType( $iframe, opt.doctypeString );
}
var $doc = $iframe.contents(),
$head = $doc.find( 'head' ),
$body = $doc.find( 'body' ),
$base = $( 'base' ),
baseURL;
// add base tag to ensure elements use the parent domain
if ( opt.base === true && $base.length > 0 ) {
// take the base tag from the original page
baseURL = $base.attr( 'href' );
} else if ( typeof opt.base === 'string' ) {
// An exact base string is provided
baseURL = opt.base;
} else {
// Use the page URL as the base
baseURL = document.location.protocol + '//' + document.location.host;
}
$head.append( '<base href="' + baseURL + '">' );
// import page stylesheets
if ( opt.importCSS )
$( 'link[rel=stylesheet]' ).each( function() {
var href = $( this ).attr( 'href' );
if ( href ) {
var media = $( this ).attr( 'media' ) || 'all';
$head.append(
"<link type='text/css' rel='stylesheet' href='" + href + "' media='" + media + "'>"
);
}
} );
// import style tags
if ( opt.importStyle )
$( 'style' ).each( function() {
$( this )
.clone()
.appendTo( $head );
} );
// add title of the page
if ( opt.pageTitle ) $head.append( '<title>' + opt.pageTitle + '</title>' );
// import additional stylesheet(s)
if ( opt.loadCSS ) {
if ( $.isArray( opt.loadCSS ) ) {
jQuery.each( opt.loadCSS, function( index, value ) {
$head.append( "<link type='text/css' rel='stylesheet' href='" + this + "'>" );
} );
} else {
$head.append( "<link type='text/css' rel='stylesheet' href='" + opt.loadCSS + "'>" );
}
}
// print header
if ( opt.header ) $body.append( opt.header );
if ( opt.canvas ) {
// add canvas data-ids for easy access after the cloning.
var canvasId = 0;
$element.find( 'canvas' ).each( function() {
$( this ).attr( 'data-printthis', canvasId++ );
} );
}
// grab $.selector as container
if ( opt.printContainer ) $body.append( $element.outer() );
// otherwise just print interior elements of container
else
$element.each( function() {
$body.append( $( this ).html() );
} );
if ( opt.canvas ) {
// Re-draw new canvases by referencing the originals
$body.find( 'canvas' ).each( function() {
var cid = $( this ).data( 'printthis' ),
$src = $( '[data-printthis="' + cid + '"]' );
this.getContext( '2d' ).drawImage( $src[ 0 ], 0, 0 );
// Remove the mark-up from the original
$src.removeData( 'printthis' );
} );
}
// capture form/field values
if ( opt.formValues ) {
// loop through inputs
var $input = $element.find( 'input' );
if ( $input.length ) {
$input.each( function() {
var $this = $( this ),
$name = $( this ).attr( 'name' ),
$checker = $this.is( ':checkbox' ) || $this.is( ':radio' ),
$iframeInput = $doc.find( 'input[name="' + $name + '"]' ),
$value = $this.val();
// order matters here
if ( ! $checker ) {
$iframeInput.val( $value );
} else if ( $this.is( ':checked' ) ) {
if ( $this.is( ':checkbox' ) ) {
$iframeInput.attr( 'checked', 'checked' );
} else if ( $this.is( ':radio' ) ) {
$doc
.find( 'input[name="' + $name + '"][value="' + $value + '"]' )
.attr( 'checked', 'checked' );
}
}
} );
}
// loop through selects
var $select = $element.find( 'select' );
if ( $select.length ) {
$select.each( function() {
var $this = $( this ),
$name = $( this ).attr( 'name' ),
$value = $this.val();
$doc.find( 'select[name="' + $name + '"]' ).val( $value );
} );
}
// loop through textareas
var $textarea = $element.find( 'textarea' );
if ( $textarea.length ) {
$textarea.each( function() {
var $this = $( this ),
$name = $( this ).attr( 'name' ),
$value = $this.val();
$doc.find( 'textarea[name="' + $name + '"]' ).val( $value );
} );
}
} // end capture form/field values
// remove inline styles
if ( opt.removeInline ) {
// $.removeAttr available jQuery 1.7+
if ( $.isFunction( $.removeAttr ) ) {
$doc.find( 'body *' ).removeAttr( 'style' );
} else {
$doc.find( 'body *' ).attr( 'style', '' );
}
}
// print "footer"
if ( opt.footer ) $body.append( opt.footer );
setTimeout( function() {
if ( $iframe.hasClass( 'MSIE' ) ) {
// check if the iframe was created with the ugly hack
// and perform another ugly hack out of neccessity
window.frames[ 'printIframe' ].focus();
$head.append( '<script> window.print(); </s' + 'cript>' );
} else {
// proper method
if ( document.queryCommandSupported( 'print' ) ) {
$iframe[ 0 ].contentWindow.document.execCommand( 'print', false, null );
} else {
$iframe[ 0 ].contentWindow.focus();
$iframe[ 0 ].contentWindow.print();
}
}
// remove iframe after print
if ( ! opt.debug ) {
setTimeout( function() {
$iframe.remove();
}, 1000 );
}
}, opt.printDelay );
}, 333 );
};
// defaults
$.fn.printThis.defaults = {
debug: false, // show the iframe for debugging
importCSS: true, // import parent page css
importStyle: false, // import style tags
printContainer: true, // print outer container/$.selector
loadCSS: '', // load an additional css file - load multiple stylesheets with an array []
pageTitle: '', // add title to print page
removeInline: false, // remove all inline styles
printDelay: 333, // variable print delay
header: null, // prefix to html
footer: null, // postfix to html
formValues: true, // preserve input/form values
canvas: false, // Copy canvas content (experimental)
base: false, // preserve the BASE tag, or accept a string for the URL
doctypeString: '<!DOCTYPE html>', // html doctype
};
// $.selector container
jQuery.fn.outer = function() {
return $( $( '<div></div>' ).html( this.clone() ) ).html();
};
} )( jQuery );
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