angular.module('MainApp', ['ngMaterial', 'ngMessages', 'ngMdIcons'])
.controller('MainController', MainController)
.config(config);
function MainController($scope, $mdDialog) {
var ctrl = this;
ctrl.snapShot = snapShot;
ctrl.download = download
ctrl.clickOnDiv1 = clickOnDiv1;
ctrl.clickOnDiv2 = clickOnDiv2;
function snapShot() {
var elements = document.getElementsByClassName("screencapture");
var nodes = Array.prototype.slice.call(elements);
var node = nodes.find(x => x.clientHeight > 0);
domtoimage.toBlob(node, {bgcolor: '#777777'})
.then(function(dataUrl) {
// var link = document.createElement('a');
// link.download = 'my-image-name.png';
// link.href = dataUrl;
// link.click();
var img = document.getElementById('generatedImg');
img.src = URL.createObjectURL(dataUrl); //use this line with .toBlob
// img.src = dataUrl; //use this line with .toPng
// saveToClipboard(newImg);
});
}
function download() {
var elements = document.getElementsByClassName("screencapture");
var nodes = Array.prototype.slice.call(elements);
var node = nodes.find(x => x.clientHeight > 0);
domtoimage.toPng(node, {bgcolor: '#777777'})
.then(function(dataUrl) {
var link = document.createElement('a');
link.download = 'my-image-name.png';
link.href = dataUrl;
link.click();
});
}
function saveToClipboard(node) {
if (document.body.createTextRange) {
var range = document.body.createTextRange();
range.moveToElementText(node);
range.select();
} else if (window.getSelection) {
var selection = window.getSelection();
var range2 = document.createRange();
range2.selectNodeContents(node);
selection.removeAllRanges();
selection.addRange(range2);
}
document.execCommand('copy');
}
function clickOnDiv1() {
console.log("clicked on div1");
var div = document.getElementById('div1');
saveToClipboard(div);
}
function clickOnDiv2() {
console.log("clicked on div2");
var div = document.getElementById('div2');
saveToClipboard(div);
}
}
/*********************************************************
CONFIG
**********************************************************/
config.$inject = ['$mdThemingProvider', '$mdAriaProvider'];
function config($mdThemingProvider, $mdAriaProvider) {
// $mdThemingProvider.theme('default')
// .primaryPalette('blue-grey', {
// 'default': '200',
// 'hue-1': '700',
// 'hue-2': '800',
// 'hue-3': '900'
// })
// .backgroundPalette('blue-grey', {
// 'default': '800'
// })
// .accentPalette('cyan', {
// 'default': '300'
// })
// .dark();
$mdAriaProvider.disableWarnings();
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<!-- <script>document.write('<base href="' + document.location + '" />');</script> -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.3/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.3/angular-animate.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.3/angular-aria.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.3/angular-messages.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular-material/1.1.3/angular-material.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/angular-material/1.1.3/angular-material.min.css" />
<script src="//cdnjs.cloudflare.com/ajax/libs/angular-material-icons/0.7.1/angular-material-icons.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
<script src="dom-to-image.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="app.js"></script>
</head>
<body ng-app="MainApp" ng-controller="MainController as ctrl">
<br />
<div id="abc" class="screencapture">
<table>
<tr><th>col1</th><th>col2</th><th>col3</th></tr>
<tr><td>cell</td><td>cell</td><td>cell</td></tr>
<tr><td>cell</td><td>cell</td><td>cell</td></tr>
<tr><td>cell</td><td>cell</td><td>cell</td></tr>
</table>
</div>
<br /><br />
<md-button class="md-raised" ng-click="ctrl.snapShot()">Snapshot</md-button>
<md-button class="md-raised" ng-click="ctrl.download()">Download</md-button>
<br /><br />
generated img (click on img to copy to clipboard)
<div id="div1" ng-click="ctrl.clickOnDiv1()" style="border:1px solid green">
<img id="generatedImg">
</div>
<br /><br />
standard URL img (click on img to copy to clipboard)
<div id="div2" ng-click="ctrl.clickOnDiv2()">
<img src="https://dummyimage.com/200x200/000/fff">
</div>
</body>
</html>
/* Put your css in here */
Copy to clipboard only works when the <img> element has a standard URL for the 'src' attribute such as 'http://domain.com/sample.png'. The data generated from domtoimage is a data URI such as 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAARsAAAASCA...'. You can assign this to a <img> element and see it on the page, but this will not work with copy-to-clipboard due to browser security restrictions.
//this works copy-to-clipboard
<img src='http://domain.com/sample.png'></img>
//this does NOT work with copy-to-clipboard
<img src='data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAARsAAAASCA...'></img>
You could possibly solve this by sending the data URI (data:image/png;base64,iVBORw0KG...) to a service on the backend that would save the data URI into a file on the server. The service would return the location of this file so it could be used for the src attribute of the <img> element. Then you could do a copy-to-clipboard
(function (global) {
'use strict';
var util = newUtil();
var inliner = newInliner();
var fontFaces = newFontFaces();
var images = newImages();
var domtoimage = {
toSvg: toSvg,
toPng: toPng,
toJpeg: toJpeg,
toBlob: toBlob,
toPixelData: toPixelData,
impl: {
fontFaces: fontFaces,
images: images,
util: util,
inliner: inliner
}
};
if (typeof module !== 'undefined')
module.exports = domtoimage;
else
global.domtoimage = domtoimage;
/**
* @param {Node} node - The DOM Node object to render
* @param {Object} options - Rendering options
* @param {Function} options.filter - Should return true if passed node should be included in the output
* (excluding node means excluding it's children as well). Not called on the root node.
* @param {String} options.bgcolor - color for the background, any valid CSS color value.
* @param {Number} options.width - width to be applied to node before rendering.
* @param {Number} options.height - height to be applied to node before rendering.
* @param {Object} options.style - an object whose properties to be copied to node's style before rendering.
* @param {Number} options.quality - a Number between 0 and 1 indicating image quality (applicable to JPEG only),
defaults to 1.0.
* @return {Promise} - A promise that is fulfilled with a SVG image data URL
* */
function toSvg(node, options) {
options = options || {};
return Promise.resolve(node)
.then(function (node) {
return cloneNode(node, options.filter, true);
})
.then(embedFonts)
.then(inlineImages)
.then(applyOptions)
.then(function (clone) {
return makeSvgDataUri(clone,
options.width || util.width(node),
options.height || util.height(node)
);
});
function applyOptions(clone) {
if (options.bgcolor) clone.style.backgroundColor = options.bgcolor;
if (options.width) clone.style.width = options.width + 'px';
if (options.height) clone.style.height = options.height + 'px';
if (options.style)
Object.keys(options.style).forEach(function (property) {
clone.style[property] = options.style[property];
});
return clone;
}
}
/**
* @param {Node} node - The DOM Node object to render
* @param {Object} options - Rendering options, @see {@link toSvg}
* @return {Promise} - A promise that is fulfilled with a Uint8Array containing RGBA pixel data.
* */
function toPixelData(node, options) {
return draw(node, options || {})
.then(function (canvas) {
return canvas.getContext('2d').getImageData(
0,
0,
util.width(node),
util.height(node)
).data;
});
}
/**
* @param {Node} node - The DOM Node object to render
* @param {Object} options - Rendering options, @see {@link toSvg}
* @return {Promise} - A promise that is fulfilled with a PNG image data URL
* */
function toPng(node, options) {
return draw(node, options || {})
.then(function (canvas) {
return canvas.toDataURL();
});
}
/**
* @param {Node} node - The DOM Node object to render
* @param {Object} options - Rendering options, @see {@link toSvg}
* @return {Promise} - A promise that is fulfilled with a JPEG image data URL
* */
function toJpeg(node, options) {
options = options || {};
return draw(node, options)
.then(function (canvas) {
return canvas.toDataURL('image/jpeg', options.quality || 1.0);
});
}
/**
* @param {Node} node - The DOM Node object to render
* @param {Object} options - Rendering options, @see {@link toSvg}
* @return {Promise} - A promise that is fulfilled with a PNG image blob
* */
function toBlob(node, options) {
return draw(node, options || {})
.then(util.canvasToBlob);
}
function draw(domNode, options) {
return toSvg(domNode, options)
.then(util.makeImage)
.then(util.delay(100))
.then(function (image) {
var canvas = newCanvas(domNode);
canvas.getContext('2d').drawImage(image, 0, 0);
return canvas;
});
function newCanvas(domNode) {
var canvas = document.createElement('canvas');
canvas.width = options.width || util.width(domNode);
canvas.height = options.height || util.height(domNode);
if (options.bgcolor) {
var ctx = canvas.getContext('2d');
ctx.fillStyle = options.bgcolor;
ctx.fillRect(0, 0, canvas.width, canvas.height);
}
return canvas;
}
}
function cloneNode(node, filter, root) {
if (!root && filter && !filter(node)) return Promise.resolve();
return Promise.resolve(node)
.then(makeNodeCopy)
.then(function (clone) {
return cloneChildren(node, clone, filter);
})
.then(function (clone) {
return processClone(node, clone);
});
function makeNodeCopy(node) {
if (node instanceof HTMLCanvasElement) return util.makeImage(node.toDataURL());
return node.cloneNode(false);
}
function cloneChildren(original, clone, filter) {
var children = original.childNodes;
if (children.length === 0) return Promise.resolve(clone);
return cloneChildrenInOrder(clone, util.asArray(children), filter)
.then(function () {
return clone;
});
function cloneChildrenInOrder(parent, children, filter) {
var done = Promise.resolve();
children.forEach(function (child) {
done = done
.then(function () {
return cloneNode(child, filter);
})
.then(function (childClone) {
if (childClone) parent.appendChild(childClone);
});
});
return done;
}
}
function processClone(original, clone) {
if (!(clone instanceof Element)) return clone;
return Promise.resolve()
.then(cloneStyle)
.then(clonePseudoElements)
.then(copyUserInput)
.then(fixSvg)
.then(function () {
return clone;
});
function cloneStyle() {
copyStyle(window.getComputedStyle(original), clone.style);
function copyStyle(source, target) {
if (source.cssText) target.cssText = source.cssText;
else copyProperties(source, target);
function copyProperties(source, target) {
util.asArray(source).forEach(function (name) {
target.setProperty(
name,
source.getPropertyValue(name),
source.getPropertyPriority(name)
);
});
}
}
}
function clonePseudoElements() {
[':before', ':after'].forEach(function (element) {
clonePseudoElement(element);
});
function clonePseudoElement(element) {
var style = window.getComputedStyle(original, element);
var content = style.getPropertyValue('content');
if (content === '' || content === 'none') return;
var className = util.uid();
clone.className = clone.className + ' ' + className;
var styleElement = document.createElement('style');
styleElement.appendChild(formatPseudoElementStyle(className, element, style));
clone.appendChild(styleElement);
function formatPseudoElementStyle(className, element, style) {
var selector = '.' + className + ':' + element;
var cssText = style.cssText ? formatCssText(style) : formatCssProperties(style);
return document.createTextNode(selector + '{' + cssText + '}');
function formatCssText(style) {
var content = style.getPropertyValue('content');
return style.cssText + ' content: ' + content + ';';
}
function formatCssProperties(style) {
return util.asArray(style)
.map(formatProperty)
.join('; ') + ';';
function formatProperty(name) {
return name + ': ' +
style.getPropertyValue(name) +
(style.getPropertyPriority(name) ? ' !important' : '');
}
}
}
}
}
function copyUserInput() {
if (original instanceof HTMLTextAreaElement) clone.innerHTML = original.value;
if (original instanceof HTMLInputElement) clone.setAttribute("value", original.value);
}
function fixSvg() {
if (!(clone instanceof SVGElement)) return;
clone.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
if (!(clone instanceof SVGRectElement)) return;
['width', 'height'].forEach(function (attribute) {
var value = clone.getAttribute(attribute);
if (!value) return;
clone.style.setProperty(attribute, value);
});
}
}
}
function embedFonts(node) {
return fontFaces.resolveAll()
.then(function (cssText) {
var styleNode = document.createElement('style');
node.appendChild(styleNode);
styleNode.appendChild(document.createTextNode(cssText));
return node;
});
}
function inlineImages(node) {
return images.inlineAll(node)
.then(function () {
return node;
});
}
function makeSvgDataUri(node, width, height) {
return Promise.resolve(node)
.then(function (node) {
node.setAttribute('xmlns', 'http://www.w3.org/1999/xhtml');
return new XMLSerializer().serializeToString(node);
})
.then(util.escapeXhtml)
.then(function (xhtml) {
return '<foreignObject x="0" y="0" width="100%" height="100%">' + xhtml + '</foreignObject>';
})
.then(function (foreignObject) {
return '<svg xmlns="http://www.w3.org/2000/svg" width="' + width + '" height="' + height + '">' +
foreignObject + '</svg>';
})
.then(function (svg) {
return 'data:image/svg+xml;charset=utf-8,' + svg;
});
}
function newUtil() {
return {
escape: escape,
parseExtension: parseExtension,
mimeType: mimeType,
dataAsUrl: dataAsUrl,
isDataUrl: isDataUrl,
canvasToBlob: canvasToBlob,
resolveUrl: resolveUrl,
getAndEncode: getAndEncode,
uid: uid(),
delay: delay,
asArray: asArray,
escapeXhtml: escapeXhtml,
makeImage: makeImage,
width: width,
height: height
};
function mimes() {
/*
* Only WOFF and EOT mime types for fonts are 'real'
* see http://www.iana.org/assignments/media-types/media-types.xhtml
*/
var WOFF = 'application/font-woff';
var JPEG = 'image/jpeg';
return {
'woff': WOFF,
'woff2': WOFF,
'ttf': 'application/font-truetype',
'eot': 'application/vnd.ms-fontobject',
'png': 'image/png',
'jpg': JPEG,
'jpeg': JPEG,
'gif': 'image/gif',
'tiff': 'image/tiff',
'svg': 'image/svg+xml'
};
}
function parseExtension(url) {
var match = /\.([^\.\/]*?)$/g.exec(url);
if (match) return match[1];
else return '';
}
function mimeType(url) {
var extension = parseExtension(url).toLowerCase();
return mimes()[extension] || '';
}
function isDataUrl(url) {
return url.search(/^(data:)/) !== -1;
}
function toBlob(canvas) {
return new Promise(function (resolve) {
var binaryString = window.atob(canvas.toDataURL().split(',')[1]);
var length = binaryString.length;
var binaryArray = new Uint8Array(length);
for (var i = 0; i < length; i++)
binaryArray[i] = binaryString.charCodeAt(i);
resolve(new Blob([binaryArray], {
type: 'image/png'
}));
});
}
function canvasToBlob(canvas) {
if (canvas.toBlob)
return new Promise(function (resolve) {
canvas.toBlob(resolve);
});
return toBlob(canvas);
}
function resolveUrl(url, baseUrl) {
var doc = document.implementation.createHTMLDocument();
var base = doc.createElement('base');
doc.head.appendChild(base);
var a = doc.createElement('a');
doc.body.appendChild(a);
base.href = baseUrl;
a.href = url;
return a.href;
}
function uid() {
var index = 0;
return function () {
return 'u' + fourRandomChars() + index++;
function fourRandomChars() {
/* see http://stackoverflow.com/a/6248722/2519373 */
return ('0000' + (Math.random() * Math.pow(36, 4) << 0).toString(36)).slice(-4);
}
};
}
function makeImage(uri) {
return new Promise(function (resolve, reject) {
var image = new Image();
image.onload = function () {
resolve(image);
};
image.onerror = reject;
image.src = uri;
});
}
function getAndEncode(url) {
var TIMEOUT = 30000;
return new Promise(function (resolve) {
var request = new XMLHttpRequest();
request.onreadystatechange = done;
request.ontimeout = timeout;
request.responseType = 'blob';
request.timeout = TIMEOUT;
request.open('GET', url, true);
request.send();
function done() {
if (request.readyState !== 4) return;
if (request.status !== 200) {
fail('cannot fetch resource: ' + url + ', status: ' + request.status);
return;
}
var encoder = new FileReader();
encoder.onloadend = function () {
var content = encoder.result.split(/,/)[1];
resolve(content);
};
encoder.readAsDataURL(request.response);
}
function timeout() {
fail('timeout of ' + TIMEOUT + 'ms occured while fetching resource: ' + url);
}
function fail(message) {
console.error(message);
resolve('');
}
});
}
function dataAsUrl(content, type) {
return 'data:' + type + ';base64,' + content;
}
function escape(string) {
return string.replace(/([.*+?^${}()|\[\]\/\\])/g, '\\$1');
}
function delay(ms) {
return function (arg) {
return new Promise(function (resolve) {
setTimeout(function () {
resolve(arg);
}, ms);
});
};
}
function asArray(arrayLike) {
var array = [];
var length = arrayLike.length;
for (var i = 0; i < length; i++) array.push(arrayLike[i]);
return array;
}
function escapeXhtml(string) {
return string.replace(/#/g, '%23').replace(/\n/g, '%0A');
}
function width(node) {
var leftBorder = px(node, 'border-left-width');
var rightBorder = px(node, 'border-right-width');
return node.scrollWidth + leftBorder + rightBorder;
}
function height(node) {
var topBorder = px(node, 'border-top-width');
var bottomBorder = px(node, 'border-bottom-width');
return node.scrollHeight + topBorder + bottomBorder;
}
function px(node, styleProperty) {
var value = window.getComputedStyle(node).getPropertyValue(styleProperty);
return parseFloat(value.replace('px', ''));
}
}
function newInliner() {
var URL_REGEX = /url\(['"]?([^'"]+?)['"]?\)/g;
return {
inlineAll: inlineAll,
shouldProcess: shouldProcess,
impl: {
readUrls: readUrls,
inline: inline
}
};
function shouldProcess(string) {
return string.search(URL_REGEX) !== -1;
}
function readUrls(string) {
var result = [];
var match;
while ((match = URL_REGEX.exec(string)) !== null) {
result.push(match[1]);
}
return result.filter(function (url) {
return !util.isDataUrl(url);
});
}
function inline(string, url, baseUrl, get) {
return Promise.resolve(url)
.then(function (url) {
return baseUrl ? util.resolveUrl(url, baseUrl) : url;
})
.then(get || util.getAndEncode)
.then(function (data) {
return util.dataAsUrl(data, util.mimeType(url));
})
.then(function (dataUrl) {
return string.replace(urlAsRegex(url), '$1' + dataUrl + '$3');
});
function urlAsRegex(url) {
return new RegExp('(url\\([\'"]?)(' + util.escape(url) + ')([\'"]?\\))', 'g');
}
}
function inlineAll(string, baseUrl, get) {
if (nothingToInline()) return Promise.resolve(string);
return Promise.resolve(string)
.then(readUrls)
.then(function (urls) {
var done = Promise.resolve(string);
urls.forEach(function (url) {
done = done.then(function (string) {
return inline(string, url, baseUrl, get);
});
});
return done;
});
function nothingToInline() {
return !shouldProcess(string);
}
}
}
function newFontFaces() {
return {
resolveAll: resolveAll,
impl: {
readAll: readAll
}
};
function resolveAll() {
return readAll(document)
.then(function (webFonts) {
return Promise.all(
webFonts.map(function (webFont) {
return webFont.resolve();
})
);
})
.then(function (cssStrings) {
return cssStrings.join('\n');
});
}
function readAll() {
return Promise.resolve(util.asArray(document.styleSheets))
.then(getCssRules)
.then(selectWebFontRules)
.then(function (rules) {
return rules.map(newWebFont);
});
function selectWebFontRules(cssRules) {
return cssRules
.filter(function (rule) {
return rule.type === CSSRule.FONT_FACE_RULE;
})
.filter(function (rule) {
return inliner.shouldProcess(rule.style.getPropertyValue('src'));
});
}
function getCssRules(styleSheets) {
var cssRules = [];
styleSheets.forEach(function (sheet) {
try {
util.asArray(sheet.cssRules || []).forEach(cssRules.push.bind(cssRules));
} catch (e) {
console.log('Error while reading CSS rules from ' + sheet.href, e.toString());
}
});
return cssRules;
}
function newWebFont(webFontRule) {
return {
resolve: function resolve() {
var baseUrl = (webFontRule.parentStyleSheet || {}).href;
return inliner.inlineAll(webFontRule.cssText, baseUrl);
},
src: function () {
return webFontRule.style.getPropertyValue('src');
}
};
}
}
}
function newImages() {
return {
inlineAll: inlineAll,
impl: {
newImage: newImage
}
};
function newImage(element) {
return {
inline: inline
};
function inline(get) {
if (util.isDataUrl(element.src)) return Promise.resolve();
return Promise.resolve(element.src)
.then(get || util.getAndEncode)
.then(function (data) {
return util.dataAsUrl(data, util.mimeType(element.src));
})
.then(function (dataUrl) {
return new Promise(function (resolve, reject) {
element.onload = resolve;
element.onerror = reject;
element.src = dataUrl;
});
});
}
}
function inlineAll(node) {
if (!(node instanceof Element)) return Promise.resolve(node);
return inlineBackground(node)
.then(function () {
if (node instanceof HTMLImageElement)
return newImage(node).inline();
else
return Promise.all(
util.asArray(node.childNodes).map(function (child) {
return inlineAll(child);
})
);
});
function inlineBackground(node) {
var background = node.style.getPropertyValue('background');
if (!background) return Promise.resolve(node);
return inliner.inlineAll(background)
.then(function (inlined) {
node.style.setProperty(
'background',
inlined,
node.style.getPropertyPriority('background')
);
})
.then(function () {
return node;
});
}
}
}
})(this);