html2canvas/tests/test.js

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var h2cSelector, h2cOptions;
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var CI = window.location.search.indexOf('selenium') !== -1;
var AUTORUN = window.location.search.indexOf('run=false') === -1;
var REFTEST = window.location.search.indexOf('reftest') !== -1;
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(function(document, window) {
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function appendScript(src) {
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document.write(
'<script type="text/javascript" src="' + src + '.js?' + Math.random() + '"></script>'
);
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}
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(typeof Promise === 'undefined' ? ['/node_modules/promise-polyfill/promise.min'] : [])
.concat([
'/node_modules/jquery/dist/jquery.min',
'/dist/html2canvas',
'/dist/RefTestRenderer'
])
.forEach(appendScript);
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window.onload = function() {
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var targets = REFTEST
? [new html2canvas.CanvasRenderer(), new RefTestRenderer()]
: new html2canvas.CanvasRenderer();
(function($) {
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$.fn.html2canvas = function(options) {
var date = new Date(),
$message = null,
timeoutTimer = false,
timer = date.getTime();
options = options || {};
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var promise = html2canvas(this[0], options);
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promise['catch'](function(err) {
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console.log('html2canvas threw an error', err);
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});
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promise.then(function(output) {
var canvas = Array.isArray(targets) ? output[0] : output;
if (Array.isArray(targets)) {
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console.log(
output[1]
.split('\n')
.map(function(line, i) {
return i + 1 + ':' + line;
})
.join('\n')
);
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}
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var $canvas = $(canvas),
finishTime = new Date();
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$canvas
.addClass('html2canvas')
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.css({
position: 'absolute',
left: 0,
top: 0
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})
.appendTo(document.body);
if (!CI) {
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$canvas.siblings().toggle();
$(window).click(function(event) {
if (event.button === 0) {
var scrollTop = $(window).scrollTop();
$canvas.toggle().siblings().toggle();
$(document.documentElement).css(
'background',
$canvas.is(':visible') ? 'none' : ''
);
$(document.body).css(
'background',
$canvas.is(':visible') ? 'none' : ''
);
throwMessage(
'Canvas Render ' +
($canvas.is(':visible') ? 'visible' : 'hidden')
);
$(window).scrollTop(scrollTop);
}
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});
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$(document.documentElement).css(
'background',
$canvas.is(':visible') ? 'none' : ''
);
$(document.body).css('background', $canvas.is(':visible') ? 'none' : '');
throwMessage(
'Screenshot created in ' + (finishTime.getTime() - timer) + ' ms<br />',
4000
);
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} else {
$canvas.css('display', 'none');
}
// test if canvas is read-able
try {
$canvas[0].toDataURL();
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} catch (e) {
if ($canvas[0].nodeName.toLowerCase() === 'canvas') {
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// TODO, maybe add a bit less offensive way to present this, but still something that can easily be noticed
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window.alert('Canvas is tainted, unable to read data');
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}
}
});
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function throwMessage(msg, duration) {
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window.clearTimeout(timeoutTimer);
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timeoutTimer = window.setTimeout(function() {
$message.fadeOut(function() {
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$message.remove();
$message = null;
});
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}, duration || 2000);
if ($message) $message.remove();
$message = $('<div />')
.html(msg)
.css({
margin: 0,
padding: 10,
background: '#000',
opacity: 0.7,
position: 'fixed',
top: 10,
right: 10,
fontFamily: 'Tahoma',
color: '#fff',
fontSize: 12,
borderRadius: 12,
width: 'auto',
height: 'auto',
textAlign: 'center',
textDecoration: 'none',
display: 'none'
})
.appendTo(document.body)
.fadeIn();
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}
};
})(jQuery);
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h2cSelector = [document.documentElement];
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if (window.setUp) {
window.setUp();
}
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window.run = function() {
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$(h2cSelector).html2canvas(
$.extend(
{
logging: true,
proxy: 'http://localhost:8082',
useCORS: false,
removeContainer: false,
target: targets
},
h2cOptions,
REFTEST ? {windowWidth: 800, windowHeight: 600} : {}
)
);
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};
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if (typeof dontRun === 'undefined' && AUTORUN) {
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setTimeout(window.run, 100);
}
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};
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})(document, window);