js button to take current page screenshot
(function(exports) {
function urlsToAbsolute(nodeList) {
if (!nodeList.length) {
return [];
}
var attrName = 'href';
if (nodeList[0].__proto__ === HTMLImageElement.prototype || nodeList[0].__proto__ === HTMLScriptElement.prototype) {
attrName = 'src';
}
nodeList = [].map.call(nodeList, function(el, i) {
var attr = el.getAttribute(attrName);
if (!attr) {
return;
}
var absURL = /^(https?|data):/i.test(attr);
if (absURL) {
return el;
} else {
return el;
}
});
return nodeList;
}
function screenshotPage() {
var wrapper = document.getElementById('wrapper');
html2canvas(wrapper, {
onrendered: function(canvas) {
canvas.toBlob(function(blob) {
saveAs(blob, 'myScreenshot.png');
});
}
});
}
function addOnPageLoad_() {
window.addEventListener('DOMContentLoaded', function(e) {
var scrollX = document.documentElement.dataset.scrollX || 0;
var scrollY = document.documentElement.dataset.scrollY || 0;
window.scrollTo(scrollX, scrollY);
});
}
function generate() {
screenshotPage();
}
exports.screenshotPage = screenshotPage;
exports.generate = generate;
})(window);