mirror of https://github.com/sgoudham/carbon.git
remove custom dom-to-image (#578)
Michael Fix
6 years ago
committed by
GitHub
parent
e5650129a3
commit
230047441a
@ -1,767 +0,0 @@
|
||||
/* eslint-disable */
|
||||
;(function(global) {
|
||||
'use strict'
|
||||
|
||||
var util = newUtil()
|
||||
var inliner = newInliner()
|
||||
var fontFaces = newFontFaces()
|
||||
var images = newImages()
|
||||
|
||||
// Default impl options
|
||||
var defaultOptions = {
|
||||
// Default is to fail on error, no placeholder
|
||||
imagePlaceholder: undefined,
|
||||
// Default cache bust is false, it will use the cache
|
||||
cacheBust: false
|
||||
}
|
||||
|
||||
var domtoimage = {
|
||||
toSvg: toSvg,
|
||||
toPng: toPng,
|
||||
toJpeg: toJpeg,
|
||||
toBlob: toBlob,
|
||||
toPixelData: toPixelData,
|
||||
impl: {
|
||||
fontFaces: fontFaces,
|
||||
images: images,
|
||||
util: util,
|
||||
inliner: inliner,
|
||||
options: {}
|
||||
}
|
||||
}
|
||||
|
||||
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.
|
||||
* @param {String} options.imagePlaceholder - dataURL to use as a placeholder for failed images, default behaviour is to fail fast on images we can't fetch
|
||||
* @param {Boolean} options.cacheBust - set to true to cache bust by appending the time to the request url
|
||||
* @return {Promise} - A promise that is fulfilled with a SVG image data URL
|
||||
* */
|
||||
function toSvg(node, options) {
|
||||
options = options || {}
|
||||
copyOptions(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 copyOptions(options) {
|
||||
// Copy options to impl options for use in impl
|
||||
if (typeof options.imagePlaceholder === 'undefined') {
|
||||
domtoimage.impl.options.imagePlaceholder = defaultOptions.imagePlaceholder
|
||||
} else {
|
||||
domtoimage.impl.options.imagePlaceholder = options.imagePlaceholder
|
||||
}
|
||||
|
||||
if (typeof options.cacheBust === 'undefined') {
|
||||
domtoimage.impl.options.cacheBust = defaultOptions.cacheBust
|
||||
} else {
|
||||
domtoimage.impl.options.cacheBust = options.cacheBust
|
||||
}
|
||||
}
|
||||
|
||||
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
|
||||
if (domtoimage.impl.options.cacheBust) {
|
||||
// Cache bypass so we dont have CORS issues with cached images
|
||||
// Source: https://developer.mozilla.org/en/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest#Bypassing_the_cache
|
||||
url += (/\?/.test(url) ? '&' : '?') + new Date().getTime()
|
||||
}
|
||||
|
||||
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()
|
||||
|
||||
var placeholder
|
||||
if (domtoimage.impl.options.imagePlaceholder) {
|
||||
var split = domtoimage.impl.options.imagePlaceholder.split(/,/)
|
||||
if (split && split[1]) {
|
||||
placeholder = split[1]
|
||||
}
|
||||
}
|
||||
|
||||
function done() {
|
||||
if (request.readyState !== 4) return
|
||||
|
||||
if (request.status !== 200) {
|
||||
if (placeholder) {
|
||||
resolve(placeholder)
|
||||
} else {
|
||||
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() {
|
||||
if (placeholder) {
|
||||
resolve(placeholder)
|
||||
} else {
|
||||
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)
|
||||
Loading…
Reference in New Issue