jquery.print-preview.js
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/*!
* jQuery Print Previw Plugin v1.0.1
*
* Copyright 2011, Tim Connell
* Licensed under the GPL Version 2 license
* http://www.gnu.org/licenses/gpl-2.0.html
*
* Date: Wed Jan 25 00:00:00 2012 -000
*/
(function($) {
// Initialization
$.fn.printPreview = function() {
this.each(function() {
$(this).bind('click', function(e) {
e.preventDefault();
if (!$('#print-modal').length) {
$.printPreview.loadPrintPreview();
}
});
});
return this;
};
// Private functions
var mask, size, print_modal, print_controls;
$.printPreview = {
loadPrintPreview: function() {
// Declare DOM objects
print_modal = $('<div id="print-modal"></div>');
print_controls = $('<div id="print-modal-controls">' +
'<a href="#" class="print" title="Print page">Print page</a>' +
'<a href="#" class="close" title="Close print preview">Close</a>').hide();
var print_frame = $('<iframe id="print-modal-content" scrolling="no" border="0" frameborder="0" name="print-frame" />');
// Raise print preview window from the dead, zooooooombies
print_modal
.hide()
.append(print_controls)
.append(print_frame)
.appendTo('body');
// The frame lives
for (var i=0; i < window.frames.length; i++) {
if (window.frames[i].name == "print-frame") {
var print_frame_ref = window.frames[i].document;
break;
}
}
print_frame_ref.open();
print_frame_ref.write('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">' +
'<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">' +
'<head><title>' + document.title + '</title></head>' +
'<body></body>' +
'</html>');
print_frame_ref.close();
// Grab contents and apply stylesheet
var $iframe_head = $('head link[media*=print], head link[media=all]').clone(),
$iframe_body = $('body > *:not(#print-modal):not(script)').clone();
$iframe_head.each(function() {
$(this).attr('media', 'all');
});
if (!$.browser.msie && !($.browser.version < 7) ) {
$('head', print_frame_ref).append($iframe_head);
$('body', print_frame_ref).append($iframe_body);
}
else {
$('body > *:not(#print-modal):not(script)').clone().each(function() {
$('body', print_frame_ref).append(this.outerHTML);
});
$('head link[media*=print], head link[media=all]').each(function() {
$('head', print_frame_ref).append($(this).clone().attr('media', 'all')[0].outerHTML);
});
}
// Disable all links
$('a', print_frame_ref).bind('click.printPreview', function(e) {
e.preventDefault();
});
// Introduce print styles
$('head').append('<style type="text/css">' +
'@media print {' +
'/* -- Print Preview --*/' +
'#print-modal-mask,' +
'#print-modal {' +
'display: none !important;' +
'}' +
'}' +
'</style>'
);
// Load mask
$.printPreview.loadMask();
// Disable scrolling
$('body').css({overflowY: 'hidden', height: '100%'});
$('img', print_frame_ref).load(function() {
print_frame.height($('body', print_frame.contents())[0].scrollHeight);
});
// Position modal
starting_position = $(window).height() + $(window).scrollTop();
var css = {
top: starting_position,
height: '100%',
overflowY: 'auto',
zIndex: 10000,
display: 'block'
}
print_modal
.css(css)
.animate({ top: $(window).scrollTop()}, 400, 'linear', function() {
print_controls.fadeIn('slow').focus();
});
print_frame.height($('body', print_frame.contents())[0].scrollHeight);
// Bind closure
$('a', print_controls).bind('click', function(e) {
e.preventDefault();
if ($(this).hasClass('print')) { window.print(); }
else { $.printPreview.distroyPrintPreview(); }
});
},
distroyPrintPreview: function() {
print_controls.fadeOut(100);
print_modal.animate({ top: $(window).scrollTop() - $(window).height(), opacity: 1}, 400, 'linear', function(){
print_modal.remove();
$('body').css({overflowY: 'auto', height: 'auto'});
});
mask.fadeOut('slow', function() {
mask.remove();
});
$(document).unbind("keydown.printPreview.mask");
mask.unbind("click.printPreview.mask");
$(window).unbind("resize.printPreview.mask");
},
/* -- Mask Functions --*/
loadMask: function() {
size = $.printPreview.sizeUpMask();
mask = $('<div id="print-modal-mask" />').appendTo($('body'));
mask.css({
position: 'absolute',
top: 0,
left: 0,
width: size[0],
height: size[1],
display: 'none',
opacity: 0,
zIndex: 9999,
backgroundColor: '#000'
});
mask.css({display: 'block'}).fadeTo('400', 0.75);
$(window).bind("resize..printPreview.mask", function() {
$.printPreview.updateMaskSize();
});
mask.bind("click.printPreview.mask", function(e) {
$.printPreview.distroyPrintPreview();
});
$(document).bind("keydown.printPreview.mask", function(e) {
if (e.keyCode == 27) { $.printPreview.distroyPrintPreview(); }
});
},
sizeUpMask: function() {
if ($.browser.msie) {
// if there are no scrollbars then use window.height
var d = $(document).height(), w = $(window).height();
return [
window.innerWidth || // ie7+
document.documentElement.clientWidth || // ie6
document.body.clientWidth, // ie6 quirks mode
d - w < 20 ? w : d
];
} else { return [$(document).width(), $(document).height()]; }
},
updateMaskSize: function() {
var size = $.printPreview.sizeUpMask();
mask.css({width: size[0], height: size[1]});
}
}
})(jQuery);