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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = Image;
var _react = _interopRequireDefault(require("react"));
var _head = _interopRequireDefault(require("../shared/lib/head"));
var _toBase64 = require("../shared/lib/to-base-64");
var _imageConfig = require("../server/image-config");
var _useIntersection = require("./use-intersection");
function _defineProperty(obj, key, value) {
if (key in obj) {
Object.defineProperty(obj, key, {
value: value,
enumerable: true,
configurable: true,
writable: true
});
} else {
obj[key] = value;
}
return obj;
}
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {
default: obj
};
}
function _objectSpread(target) {
for(var i = 1; i < arguments.length; i++){
var source = arguments[i] != null ? arguments[i] : {
};
var ownKeys = Object.keys(source);
if (typeof Object.getOwnPropertySymbols === "function") {
ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function(sym) {
return Object.getOwnPropertyDescriptor(source, sym).enumerable;
}));
}
ownKeys.forEach(function(key) {
_defineProperty(target, key, source[key]);
});
}
return target;
}
function _objectWithoutProperties(source, excluded) {
if (source == null) return {
};
var target = _objectWithoutPropertiesLoose(source, excluded);
var key, i;
if (Object.getOwnPropertySymbols) {
var sourceSymbolKeys = Object.getOwnPropertySymbols(source);
for(i = 0; i < sourceSymbolKeys.length; i++){
key = sourceSymbolKeys[i];
if (excluded.indexOf(key) >= 0) continue;
if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
target[key] = source[key];
}
}
return target;
}
function _objectWithoutPropertiesLoose(source, excluded) {
if (source == null) return {
};
var target = {
};
var sourceKeys = Object.keys(source);
var key, i;
for(i = 0; i < sourceKeys.length; i++){
key = sourceKeys[i];
if (excluded.indexOf(key) >= 0) continue;
target[key] = source[key];
}
return target;
}
const loadedImageURLs = new Set();
const allImgs = new Map();
let perfObserver;
const emptyDataURL = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7';
if (typeof window === 'undefined') {
global.__NEXT_IMAGE_IMPORTED = true;
}
const VALID_LOADING_VALUES = [
'lazy',
'eager',
undefined
];
const loaders = new Map([
[
'default',
defaultLoader
],
[
'imgix',
imgixLoader
],
[
'cloudinary',
cloudinaryLoader
],
[
'akamai',
akamaiLoader
],
[
'custom',
customLoader
],
]);
const VALID_LAYOUT_VALUES = [
'fill',
'fixed',
'intrinsic',
'responsive',
undefined,
];
function isStaticRequire(src) {
return src.default !== undefined;
}
function isStaticImageData(src) {
return src.src !== undefined;
}
function isStaticImport(src) {
return typeof src === 'object' && (isStaticRequire(src) || isStaticImageData(src));
}
const { deviceSizes: configDeviceSizes , imageSizes: configImageSizes , loader: configLoader , path: configPath , domains: configDomains , } = process.env.__NEXT_IMAGE_OPTS || _imageConfig.imageConfigDefault;
// sort smallest to largest
const allSizes = [
...configDeviceSizes,
...configImageSizes
];
configDeviceSizes.sort((a, b)=>a - b
);
allSizes.sort((a, b)=>a - b
);
function getWidths(width, layout, sizes) {
if (sizes && (layout === 'fill' || layout === 'responsive')) {
// Find all the "vw" percent sizes used in the sizes prop
const viewportWidthRe = /(^|\s)(1?\d?\d)vw/g;
const percentSizes = [];
for(let match; match = viewportWidthRe.exec(sizes); match){
percentSizes.push(parseInt(match[2]));
}
if (percentSizes.length) {
const smallestRatio = Math.min(...percentSizes) * 0.01;
return {
widths: allSizes.filter((s)=>s >= configDeviceSizes[0] * smallestRatio
),
kind: 'w'
};
}
return {
widths: allSizes,
kind: 'w'
};
}
if (typeof width !== 'number' || layout === 'fill' || layout === 'responsive') {
return {
widths: configDeviceSizes,
kind: 'w'
};
}
const widths = [
...new Set(// > This means that most OLED screens that say they are 3x resolution,
// > are actually 3x in the green color, but only 1.5x in the red and
// > blue colors. Showing a 3x resolution image in the app vs a 2x
// > resolution image will be visually the same, though the 3x image
// > takes significantly more data. Even true 3x resolution screens are
// > wasteful as the human eye cannot see that level of detail without
// > something like a magnifying glass.
// https://blog.twitter.com/engineering/en_us/topics/infrastructure/2019/capping-image-fidelity-on-ultra-high-resolution-devices.html
[
width,
width * 2 /*, width * 3*/
].map((w)=>allSizes.find((p)=>p >= w
) || allSizes[allSizes.length - 1]
)),
];
return {
widths,
kind: 'x'
};
}
function generateImgAttrs({ src , unoptimized , layout , width , quality , sizes , loader }) {
if (unoptimized) {
return {
src,
srcSet: undefined,
sizes: undefined
};
}
const { widths , kind } = getWidths(width, layout, sizes);
const last = widths.length - 1;
return {
sizes: !sizes && kind === 'w' ? '100vw' : sizes,
srcSet: widths.map((w, i)=>`${loader({
src,
quality,
width: w
})} ${kind === 'w' ? w : i + 1}${kind}`
).join(', '),
// It's intended to keep `src` the last attribute because React updates
// attributes in order. If we keep `src` the first one, Safari will
// immediately start to fetch `src`, before `sizes` and `srcSet` are even
// updated by React. That causes multiple unnecessary requests if `srcSet`
// and `sizes` are defined.
// This bug cannot be reproduced in Chrome or Firefox.
src: loader({
src,
quality,
width: widths[last]
})
};
}
function getInt(x) {
if (typeof x === 'number') {
return x;
}
if (typeof x === 'string') {
return parseInt(x, 10);
}
return undefined;
}
function defaultImageLoader(loaderProps) {
const load = loaders.get(configLoader);
if (load) {
return load(_objectSpread({
root: configPath
}, loaderProps));
}
throw new Error(`Unknown "loader" found in "next.config.js". Expected: ${_imageConfig.VALID_LOADERS.join(', ')}. Received: ${configLoader}`);
}
// See https://stackoverflow.com/q/39777833/266535 for why we use this ref
// handler instead of the img's onLoad attribute.
function handleLoading(img, src, layout, placeholder, onLoadingComplete) {
if (!img) {
return;
}
const handleLoad = ()=>{
if (img.src !== emptyDataURL) {
const p = 'decode' in img ? img.decode() : Promise.resolve();
p.catch(()=>{
}).then(()=>{
if (placeholder === 'blur') {
img.style.filter = 'none';
img.style.backgroundSize = 'none';
img.style.backgroundImage = 'none';
}
loadedImageURLs.add(src);
if (onLoadingComplete) {
const { naturalWidth , naturalHeight } = img;
// Pass back read-only primitive values but not the
// underlying DOM element because it could be misused.
onLoadingComplete({
naturalWidth,
naturalHeight
});
}
if (process.env.NODE_ENV !== 'production') {
var ref;
if ((ref = img.parentElement) === null || ref === void 0 ? void 0 : ref.parentElement) {
const parent = getComputedStyle(img.parentElement.parentElement);
if (layout === 'responsive' && parent.display === 'flex') {
console.warn(`Image with src "${src}" may not render properly as a child of a flex container. Consider wrapping the image with a div to configure the width.`);
} else if (layout === 'fill' && parent.position !== 'relative' && parent.position !== 'fixed') {
console.warn(`Image with src "${src}" may not render properly with a parent using position:"${parent.position}". Consider changing the parent style to position:"relative" with a width and height.`);
}
}
}
});
}
};
if (img.complete) {
// If the real image fails to load, this will still remove the placeholder.
// This is the desired behavior for now, and will be revisited when error
// handling is worked on for the image component itself.
handleLoad();
} else {
img.onload = handleLoad;
}
}
function Image(_param) {
var { src , sizes , unoptimized =false , priority =false , loading , lazyBoundary ='200px' , className , quality , width , height , objectFit , objectPosition , onLoadingComplete , loader =defaultImageLoader , placeholder ='empty' , blurDataURL } = _param, all = _objectWithoutProperties(_param, ["src", "sizes", "unoptimized", "priority", "loading", "lazyBoundary", "className", "quality", "width", "height", "objectFit", "objectPosition", "onLoadingComplete", "loader", "placeholder", "blurDataURL"]);
let rest = all;
let layout = sizes ? 'responsive' : 'intrinsic';
if ('layout' in rest) {
// Override default layout if the user specified one:
if (rest.layout) layout = rest.layout;
// Remove property so it's not spread into image:
delete rest['layout'];
}
let staticSrc = '';
if (isStaticImport(src)) {
const staticImageData = isStaticRequire(src) ? src.default : src;
if (!staticImageData.src) {
throw new Error(`An object should only be passed to the image component src parameter if it comes from a static image import. It must include src. Received ${JSON.stringify(staticImageData)}`);
}
blurDataURL = blurDataURL || staticImageData.blurDataURL;
staticSrc = staticImageData.src;
if (!layout || layout !== 'fill') {
height = height || staticImageData.height;
width = width || staticImageData.width;
if (!staticImageData.height || !staticImageData.width) {
throw new Error(`An object should only be passed to the image component src parameter if it comes from a static image import. It must include height and width. Received ${JSON.stringify(staticImageData)}`);
}
}
}
src = typeof src === 'string' ? src : staticSrc;
const widthInt = getInt(width);
const heightInt = getInt(height);
const qualityInt = getInt(quality);
let isLazy = !priority && (loading === 'lazy' || typeof loading === 'undefined');
if (src.startsWith('data:') || src.startsWith('blob:')) {
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
unoptimized = true;
isLazy = false;
}
if (typeof window !== 'undefined' && loadedImageURLs.has(src)) {
isLazy = false;
}
if (process.env.NODE_ENV !== 'production') {
if (!src) {
throw new Error(`Image is missing required "src" property. Make sure you pass "src" in props to the \`next/image\` component. Received: ${JSON.stringify({
width,
height,
quality
})}`);
}
if (!VALID_LAYOUT_VALUES.includes(layout)) {
throw new Error(`Image with src "${src}" has invalid "layout" property. Provided "${layout}" should be one of ${VALID_LAYOUT_VALUES.map(String).join(',')}.`);
}
if (typeof widthInt !== 'undefined' && isNaN(widthInt) || typeof heightInt !== 'undefined' && isNaN(heightInt)) {
throw new Error(`Image with src "${src}" has invalid "width" or "height" property. These should be numeric values.`);
}
if (layout === 'fill' && (width || height)) {
console.warn(`Image with src "${src}" and "layout='fill'" has unused properties assigned. Please remove "width" and "height".`);
}
if (!VALID_LOADING_VALUES.includes(loading)) {
throw new Error(`Image with src "${src}" has invalid "loading" property. Provided "${loading}" should be one of ${VALID_LOADING_VALUES.map(String).join(',')}.`);
}
if (priority && loading === 'lazy') {
throw new Error(`Image with src "${src}" has both "priority" and "loading='lazy'" properties. Only one should be used.`);
}
if (placeholder === 'blur') {
if (layout !== 'fill' && (widthInt || 0) * (heightInt || 0) < 1600) {
console.warn(`Image with src "${src}" is smaller than 40x40. Consider removing the "placeholder='blur'" property to improve performance.`);
}
if (!blurDataURL) {
const VALID_BLUR_EXT = [
'jpeg',
'png',
'webp',
'avif'
] // should match next-image-loader
;
throw new Error(`Image with src "${src}" has "placeholder='blur'" property but is missing the "blurDataURL" property.
Possible solutions:
- Add a "blurDataURL" property, the contents should be a small Data URL to represent the image
- Change the "src" property to a static import with one of the supported file types: ${VALID_BLUR_EXT.join(',')}
- Remove the "placeholder" property, effectively no blur effect
Read more: https://nextjs.org/docs/messages/placeholder-blur-data-url`);
}
}
if ('ref' in rest) {
console.warn(`Image with src "${src}" is using unsupported "ref" property. Consider using the "onLoadingComplete" property instead.`);
}
if ('style' in rest) {
console.warn(`Image with src "${src}" is using unsupported "style" property. Please use the "className" property instead.`);
}
if (!unoptimized) {
const urlStr = loader({
src,
width: widthInt || 400,
quality: qualityInt || 75
});
let url;
try {
url = new URL(urlStr);
} catch (err) {
}
if (urlStr === src || url && url.pathname === src && !url.search) {
console.warn(`Image with src "${src}" has a "loader" property that does not implement width. Please implement it or use the "unoptimized" property instead.` + `\nRead more: https://nextjs.org/docs/messages/next-image-missing-loader-width`);
}
}
if (typeof window !== 'undefined' && !perfObserver && window.PerformanceObserver) {
perfObserver = new PerformanceObserver((entryList)=>{
for (const entry of entryList.getEntries()){
var ref;
// @ts-ignore - missing "LargestContentfulPaint" class with "element" prop
const imgSrc = (entry === null || entry === void 0 ? void 0 : (ref = entry.element) === null || ref === void 0 ? void 0 : ref.src) || '';
const lcpImage = allImgs.get(imgSrc);
if (lcpImage && !lcpImage.priority && lcpImage.placeholder !== 'blur' && !lcpImage.src.startsWith('data:') && !lcpImage.src.startsWith('blob:')) {
// https://web.dev/lcp/#measure-lcp-in-javascript
console.warn(`Image with src "${lcpImage.src}" was detected as the Largest Contentful Paint (LCP). Please add the "priority" property if this image is above the fold.` + `\nRead more: https://nextjs.org/docs/api-reference/next/image#priority`);
}
}
});
perfObserver.observe({
type: 'largest-contentful-paint',
buffered: true
});
}
}
const [setRef, isIntersected] = (0, _useIntersection).useIntersection({
rootMargin: lazyBoundary,
disabled: !isLazy
});
const isVisible = !isLazy || isIntersected;
const wrapperStyle = {
boxSizing: 'border-box',
display: 'block',
overflow: 'hidden',
width: 'initial',
height: 'initial',
background: 'none',
opacity: 1,
border: 0,
margin: 0,
padding: 0
};
const sizerStyle = {
boxSizing: 'border-box',
display: 'block',
width: 'initial',
height: 'initial',
background: 'none',
opacity: 1,
border: 0,
margin: 0,
padding: 0
};
let hasSizer = false;
let sizerSvg;
const imgStyle = {
position: 'absolute',
top: 0,
left: 0,
bottom: 0,
right: 0,
boxSizing: 'border-box',
padding: 0,
border: 'none',
margin: 'auto',
display: 'block',
width: 0,
height: 0,
minWidth: '100%',
maxWidth: '100%',
minHeight: '100%',
maxHeight: '100%',
objectFit,
objectPosition
};
const blurStyle = placeholder === 'blur' ? {
filter: 'blur(20px)',
backgroundSize: objectFit || 'cover',
backgroundImage: `url("${blurDataURL}")`,
backgroundPosition: objectPosition || '0% 0%'
} : {
};
if (layout === 'fill') {
// <Image src="i.png" layout="fill" />
wrapperStyle.display = 'block';
wrapperStyle.position = 'absolute';
wrapperStyle.top = 0;
wrapperStyle.left = 0;
wrapperStyle.bottom = 0;
wrapperStyle.right = 0;
} else if (typeof widthInt !== 'undefined' && typeof heightInt !== 'undefined') {
// <Image src="i.png" width="100" height="100" />
const quotient = heightInt / widthInt;
const paddingTop = isNaN(quotient) ? '100%' : `${quotient * 100}%`;
if (layout === 'responsive') {
// <Image src="i.png" width="100" height="100" layout="responsive" />
wrapperStyle.display = 'block';
wrapperStyle.position = 'relative';
hasSizer = true;
sizerStyle.paddingTop = paddingTop;
} else if (layout === 'intrinsic') {
// <Image src="i.png" width="100" height="100" layout="intrinsic" />
wrapperStyle.display = 'inline-block';
wrapperStyle.position = 'relative';
wrapperStyle.maxWidth = '100%';
hasSizer = true;
sizerStyle.maxWidth = '100%';
sizerSvg = `<svg width="${widthInt}" height="${heightInt}" xmlns="http://www.w3.org/2000/svg" version="1.1"/>`;
} else if (layout === 'fixed') {
// <Image src="i.png" width="100" height="100" layout="fixed" />
wrapperStyle.display = 'inline-block';
wrapperStyle.position = 'relative';
wrapperStyle.width = widthInt;
wrapperStyle.height = heightInt;
}
} else {
// <Image src="i.png" />
if (process.env.NODE_ENV !== 'production') {
throw new Error(`Image with src "${src}" must use "width" and "height" properties or "layout='fill'" property.`);
}
}
let imgAttributes = {
src: emptyDataURL,
srcSet: undefined,
sizes: undefined
};
if (isVisible) {
imgAttributes = generateImgAttrs({
src,
unoptimized,
layout,
width: widthInt,
quality: qualityInt,
sizes,
loader
});
}
let srcString = src;
if (process.env.NODE_ENV !== 'production') {
if (typeof window !== 'undefined') {
let fullUrl;
try {
fullUrl = new URL(imgAttributes.src);
} catch (e) {
fullUrl = new URL(imgAttributes.src, window.location.href);
}
allImgs.set(fullUrl.href, {
src,
priority,
placeholder
});
}
}
return(/*#__PURE__*/ _react.default.createElement("span", {
style: wrapperStyle
}, hasSizer ? /*#__PURE__*/ _react.default.createElement("span", {
style: sizerStyle
}, sizerSvg ? /*#__PURE__*/ _react.default.createElement("img", {
style: {
display: 'block',
maxWidth: '100%',
width: 'initial',
height: 'initial',
background: 'none',
opacity: 1,
border: 0,
margin: 0,
padding: 0
},
alt: "",
"aria-hidden": true,
src: `data:image/svg+xml;base64,${(0, _toBase64).toBase64(sizerSvg)}`
}) : null) : null, /*#__PURE__*/ _react.default.createElement("img", Object.assign({
}, rest, imgAttributes, {
decoding: "async",
"data-nimg": layout,
className: className,
ref: (img)=>{
setRef(img);
handleLoading(img, srcString, layout, placeholder, onLoadingComplete);
},
style: _objectSpread({
}, imgStyle, blurStyle)
})), /*#__PURE__*/ _react.default.createElement("noscript", null, /*#__PURE__*/ _react.default.createElement("img", Object.assign({
}, rest, generateImgAttrs({
src,
unoptimized,
layout,
width: widthInt,
quality: qualityInt,
sizes,
loader
}), {
decoding: "async",
"data-nimg": layout,
style: imgStyle,
className: className,
// @ts-ignore - TODO: upgrade to `@types/react@17`
loading: loading || 'lazy'
}))), priority ? // Note how we omit the `href` attribute, as it would only be relevant
// for browsers that do not support `imagesrcset`, and in those cases
// it would likely cause the incorrect image to be preloaded.
//
// https://html.spec.whatwg.org/multipage/semantics.html#attr-link-imagesrcset
/*#__PURE__*/ _react.default.createElement(_head.default, null, /*#__PURE__*/ _react.default.createElement("link", {
key: '__nimg-' + imgAttributes.src + imgAttributes.srcSet + imgAttributes.sizes,
rel: "preload",
as: "image",
href: imgAttributes.srcSet ? undefined : imgAttributes.src,
// @ts-ignore: imagesrcset is not yet in the link element type.
imagesrcset: imgAttributes.srcSet,
// @ts-ignore: imagesizes is not yet in the link element type.
imagesizes: imgAttributes.sizes
})) : null));
}
function normalizeSrc(src) {
return src[0] === '/' ? src.slice(1) : src;
}
function imgixLoader({ root , src , width , quality }) {
// Demo: https://static.imgix.net/daisy.png?auto=format&fit=max&w=300
const url = new URL(`${root}${normalizeSrc(src)}`);
const params = url.searchParams;
params.set('auto', params.get('auto') || 'format');
params.set('fit', params.get('fit') || 'max');
params.set('w', params.get('w') || width.toString());
if (quality) {
params.set('q', quality.toString());
}
return url.href;
}
function akamaiLoader({ root , src , width }) {
return `${root}${normalizeSrc(src)}?imwidth=${width}`;
}
function cloudinaryLoader({ root , src , width , quality }) {
// Demo: https://res.cloudinary.com/demo/image/upload/w_300,c_limit,q_auto/turtles.jpg
const params = [
'f_auto',
'c_limit',
'w_' + width,
'q_' + (quality || 'auto')
];
let paramsString = params.join(',') + '/';
return `${root}${paramsString}${normalizeSrc(src)}`;
}
function customLoader({ src }) {
throw new Error(`Image with src "${src}" is missing "loader" prop.` + `\nRead more: https://nextjs.org/docs/messages/next-image-missing-loader`);
}
function defaultLoader({ root , src , width , quality }) {
if (process.env.NODE_ENV !== 'production') {
const missingValues = [];
// these should always be provided but make sure they are
if (!src) missingValues.push('src');
if (!width) missingValues.push('width');
if (missingValues.length > 0) {
throw new Error(`Next Image Optimization requires ${missingValues.join(', ')} to be provided. Make sure you pass them as props to the \`next/image\` component. Received: ${JSON.stringify({
src,
width,
quality
})}`);
}
if (src.startsWith('//')) {
throw new Error(`Failed to parse src "${src}" on \`next/image\`, protocol-relative URL (//) must be changed to an absolute URL (http:// or https://)`);
}
if (!src.startsWith('/') && configDomains) {
let parsedSrc;
try {
parsedSrc = new URL(src);
} catch (err) {
console.error(err);
throw new Error(`Failed to parse src "${src}" on \`next/image\`, if using relative image it must start with a leading slash "/" or be an absolute URL (http:// or https://)`);
}
if (process.env.NODE_ENV !== 'test' && !configDomains.includes(parsedSrc.hostname)) {
throw new Error(`Invalid src prop (${src}) on \`next/image\`, hostname "${parsedSrc.hostname}" is not configured under images in your \`next.config.js\`\n` + `See more info: https://nextjs.org/docs/messages/next-image-unconfigured-host`);
}
}
}
return `${root}?url=${encodeURIComponent(src)}&w=${width}&q=${quality || 75}`;
}
//# sourceMappingURL=image.js.map