444 lines
19 KiB
JavaScript
444 lines
19 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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Object.defineProperty(exports, "getImgProps", {
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enumerable: true,
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get: function() {
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return getImgProps;
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}
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});
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const _warnonce = require("./utils/warn-once");
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const _imageblursvg = require("./image-blur-svg");
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const _imageconfig = require("./image-config");
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const VALID_LOADING_VALUES = [
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"lazy",
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"eager",
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undefined
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];
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function isStaticRequire(src) {
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return src.default !== undefined;
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}
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function isStaticImageData(src) {
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return src.src !== undefined;
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}
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function isStaticImport(src) {
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return typeof src === "object" && (isStaticRequire(src) || isStaticImageData(src));
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}
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const allImgs = new Map();
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let perfObserver;
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function getInt(x) {
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if (typeof x === "undefined") {
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return x;
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}
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if (typeof x === "number") {
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return Number.isFinite(x) ? x : NaN;
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}
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if (typeof x === "string" && /^[0-9]+$/.test(x)) {
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return parseInt(x, 10);
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}
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return NaN;
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}
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function getWidths(param, width, sizes) {
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let { deviceSizes, allSizes } = param;
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if (sizes) {
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// Find all the "vw" percent sizes used in the sizes prop
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const viewportWidthRe = /(^|\s)(1?\d?\d)vw/g;
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const percentSizes = [];
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for(let match; match = viewportWidthRe.exec(sizes); match){
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percentSizes.push(parseInt(match[2]));
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}
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if (percentSizes.length) {
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const smallestRatio = Math.min(...percentSizes) * 0.01;
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return {
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widths: allSizes.filter((s)=>s >= deviceSizes[0] * smallestRatio),
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kind: "w"
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};
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}
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return {
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widths: allSizes,
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kind: "w"
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};
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}
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if (typeof width !== "number") {
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return {
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widths: deviceSizes,
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kind: "w"
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};
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}
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const widths = [
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...new Set(// > This means that most OLED screens that say they are 3x resolution,
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// > are actually 3x in the green color, but only 1.5x in the red and
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// > blue colors. Showing a 3x resolution image in the app vs a 2x
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// > resolution image will be visually the same, though the 3x image
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// > takes significantly more data. Even true 3x resolution screens are
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// > wasteful as the human eye cannot see that level of detail without
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// > something like a magnifying glass.
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// https://blog.twitter.com/engineering/en_us/topics/infrastructure/2019/capping-image-fidelity-on-ultra-high-resolution-devices.html
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[
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width,
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width * 2 /*, width * 3*/
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].map((w)=>allSizes.find((p)=>p >= w) || allSizes[allSizes.length - 1]))
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];
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return {
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widths,
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kind: "x"
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};
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}
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function generateImgAttrs(param) {
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let { config, src, unoptimized, width, quality, sizes, loader } = param;
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if (unoptimized) {
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return {
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src,
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srcSet: undefined,
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sizes: undefined
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};
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}
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const { widths, kind } = getWidths(config, width, sizes);
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const last = widths.length - 1;
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return {
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sizes: !sizes && kind === "w" ? "100vw" : sizes,
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srcSet: widths.map((w, i)=>loader({
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config,
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src,
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quality,
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width: w
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}) + " " + (kind === "w" ? w : i + 1) + kind).join(", "),
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// It's intended to keep `src` the last attribute because React updates
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// attributes in order. If we keep `src` the first one, Safari will
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// immediately start to fetch `src`, before `sizes` and `srcSet` are even
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// updated by React. That causes multiple unnecessary requests if `srcSet`
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// and `sizes` are defined.
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// This bug cannot be reproduced in Chrome or Firefox.
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src: loader({
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config,
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src,
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quality,
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width: widths[last]
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})
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};
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}
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function getImgProps(param, _state) {
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let { src, sizes, unoptimized = false, priority = false, loading, className, quality, width, height, fill = false, style, onLoad, onLoadingComplete, placeholder = "empty", blurDataURL, fetchPriority, layout, objectFit, objectPosition, lazyBoundary, lazyRoot, ...rest } = param;
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const { imgConf, showAltText, blurComplete, defaultLoader } = _state;
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let config;
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let c = imgConf || _imageconfig.imageConfigDefault;
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if ("allSizes" in c) {
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config = c;
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} else {
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const allSizes = [
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...c.deviceSizes,
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...c.imageSizes
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].sort((a, b)=>a - b);
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const deviceSizes = c.deviceSizes.sort((a, b)=>a - b);
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config = {
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...c,
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allSizes,
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deviceSizes
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};
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}
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let loader = rest.loader || defaultLoader;
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// Remove property so it's not spread on <img> element
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delete rest.loader;
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delete rest.srcSet;
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// This special value indicates that the user
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// didn't define a "loader" prop or "loader" config.
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const isDefaultLoader = "__next_img_default" in loader;
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if (isDefaultLoader) {
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if (config.loader === "custom") {
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throw new Error('Image with src "' + src + '" is missing "loader" prop.' + "\nRead more: https://nextjs.org/docs/messages/next-image-missing-loader");
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}
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} else {
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// The user defined a "loader" prop or config.
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// Since the config object is internal only, we
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// must not pass it to the user-defined "loader".
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const customImageLoader = loader;
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loader = (obj)=>{
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const { config: _, ...opts } = obj;
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return customImageLoader(opts);
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};
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}
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if (layout) {
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if (layout === "fill") {
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fill = true;
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}
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const layoutToStyle = {
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intrinsic: {
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maxWidth: "100%",
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height: "auto"
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},
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responsive: {
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width: "100%",
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height: "auto"
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}
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};
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const layoutToSizes = {
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responsive: "100vw",
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fill: "100vw"
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};
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const layoutStyle = layoutToStyle[layout];
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if (layoutStyle) {
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style = {
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...style,
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...layoutStyle
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};
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}
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const layoutSizes = layoutToSizes[layout];
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if (layoutSizes && !sizes) {
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sizes = layoutSizes;
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}
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}
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let staticSrc = "";
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let widthInt = getInt(width);
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let heightInt = getInt(height);
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let blurWidth;
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let blurHeight;
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if (isStaticImport(src)) {
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const staticImageData = isStaticRequire(src) ? src.default : src;
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if (!staticImageData.src) {
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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));
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}
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if (!staticImageData.height || !staticImageData.width) {
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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));
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}
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blurWidth = staticImageData.blurWidth;
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blurHeight = staticImageData.blurHeight;
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blurDataURL = blurDataURL || staticImageData.blurDataURL;
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staticSrc = staticImageData.src;
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if (!fill) {
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if (!widthInt && !heightInt) {
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widthInt = staticImageData.width;
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heightInt = staticImageData.height;
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} else if (widthInt && !heightInt) {
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const ratio = widthInt / staticImageData.width;
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heightInt = Math.round(staticImageData.height * ratio);
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} else if (!widthInt && heightInt) {
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const ratio = heightInt / staticImageData.height;
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widthInt = Math.round(staticImageData.width * ratio);
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}
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}
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}
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src = typeof src === "string" ? src : staticSrc;
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let isLazy = !priority && (loading === "lazy" || typeof loading === "undefined");
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if (!src || src.startsWith("data:") || src.startsWith("blob:")) {
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// https://developer.mozilla.org/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
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unoptimized = true;
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isLazy = false;
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}
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if (config.unoptimized) {
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unoptimized = true;
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}
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if (isDefaultLoader && src.endsWith(".svg") && !config.dangerouslyAllowSVG) {
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// Special case to make svg serve as-is to avoid proxying
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// through the built-in Image Optimization API.
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unoptimized = true;
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}
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if (priority) {
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fetchPriority = "high";
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}
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const qualityInt = getInt(quality);
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if (process.env.NODE_ENV !== "production") {
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if (config.output === "export" && isDefaultLoader && !unoptimized) {
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throw new Error("Image Optimization using the default loader is not compatible with `{ output: 'export' }`.\n Possible solutions:\n - Remove `{ output: 'export' }` and run \"next start\" to run server mode including the Image Optimization API.\n - Configure `{ images: { unoptimized: true } }` in `next.config.js` to disable the Image Optimization API.\n Read more: https://nextjs.org/docs/messages/export-image-api");
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}
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if (!src) {
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// React doesn't show the stack trace and there's
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// no `src` to help identify which image, so we
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// instead console.error(ref) during mount.
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unoptimized = true;
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} else {
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if (fill) {
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if (width) {
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throw new Error('Image with src "' + src + '" has both "width" and "fill" properties. Only one should be used.');
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}
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if (height) {
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throw new Error('Image with src "' + src + '" has both "height" and "fill" properties. Only one should be used.');
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}
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if ((style == null ? void 0 : style.position) && style.position !== "absolute") {
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throw new Error('Image with src "' + src + '" has both "fill" and "style.position" properties. Images with "fill" always use position absolute - it cannot be modified.');
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}
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if ((style == null ? void 0 : style.width) && style.width !== "100%") {
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throw new Error('Image with src "' + src + '" has both "fill" and "style.width" properties. Images with "fill" always use width 100% - it cannot be modified.');
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}
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if ((style == null ? void 0 : style.height) && style.height !== "100%") {
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throw new Error('Image with src "' + src + '" has both "fill" and "style.height" properties. Images with "fill" always use height 100% - it cannot be modified.');
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}
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} else {
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if (typeof widthInt === "undefined") {
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throw new Error('Image with src "' + src + '" is missing required "width" property.');
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} else if (isNaN(widthInt)) {
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throw new Error('Image with src "' + src + '" has invalid "width" property. Expected a numeric value in pixels but received "' + width + '".');
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}
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if (typeof heightInt === "undefined") {
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throw new Error('Image with src "' + src + '" is missing required "height" property.');
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} else if (isNaN(heightInt)) {
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throw new Error('Image with src "' + src + '" has invalid "height" property. Expected a numeric value in pixels but received "' + height + '".');
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}
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}
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}
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if (!VALID_LOADING_VALUES.includes(loading)) {
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throw new Error('Image with src "' + src + '" has invalid "loading" property. Provided "' + loading + '" should be one of ' + VALID_LOADING_VALUES.map(String).join(",") + ".");
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}
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if (priority && loading === "lazy") {
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throw new Error('Image with src "' + src + '" has both "priority" and "loading=\'lazy\'" properties. Only one should be used.');
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}
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if (placeholder !== "empty" && placeholder !== "blur" && !placeholder.startsWith("data:image/")) {
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throw new Error('Image with src "' + src + '" has invalid "placeholder" property "' + placeholder + '".');
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}
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if (placeholder !== "empty") {
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if (widthInt && heightInt && widthInt * heightInt < 1600) {
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(0, _warnonce.warnOnce)('Image with src "' + src + '" is smaller than 40x40. Consider removing the "placeholder" property to improve performance.');
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}
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}
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if (placeholder === "blur" && !blurDataURL) {
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const VALID_BLUR_EXT = [
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"jpeg",
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"png",
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"webp",
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"avif"
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] // should match next-image-loader
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;
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throw new Error('Image with src "' + src + '" has "placeholder=\'blur\'" property but is missing the "blurDataURL" property.\n Possible solutions:\n - Add a "blurDataURL" property, the contents should be a small Data URL to represent the image\n - Change the "src" property to a static import with one of the supported file types: ' + VALID_BLUR_EXT.join(",") + ' (animated images not supported)\n - Remove the "placeholder" property, effectively no blur effect\n Read more: https://nextjs.org/docs/messages/placeholder-blur-data-url');
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}
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if ("ref" in rest) {
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(0, _warnonce.warnOnce)('Image with src "' + src + '" is using unsupported "ref" property. Consider using the "onLoadingComplete" property instead.');
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}
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if (!unoptimized && !isDefaultLoader) {
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const urlStr = loader({
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config,
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src,
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width: widthInt || 400,
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quality: qualityInt || 75
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});
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let url;
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try {
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url = new URL(urlStr);
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} catch (err) {}
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if (urlStr === src || url && url.pathname === src && !url.search) {
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(0, _warnonce.warnOnce)('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");
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}
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}
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for (const [legacyKey, legacyValue] of Object.entries({
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layout,
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objectFit,
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objectPosition,
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lazyBoundary,
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lazyRoot
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})){
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if (legacyValue) {
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(0, _warnonce.warnOnce)('Image with src "' + src + '" has legacy prop "' + legacyKey + '". Did you forget to run the codemod?' + "\nRead more: https://nextjs.org/docs/messages/next-image-upgrade-to-13");
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}
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}
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if (typeof window !== "undefined" && !perfObserver && window.PerformanceObserver) {
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perfObserver = new PerformanceObserver((entryList)=>{
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for (const entry of entryList.getEntries()){
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var _entry_element;
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// @ts-ignore - missing "LargestContentfulPaint" class with "element" prop
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|
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const imgSrc = (entry == null ? void 0 : (_entry_element = entry.element) == null ? void 0 : _entry_element.src) || "";
|
||
|
|
const lcpImage = allImgs.get(imgSrc);
|
||
|
|
if (lcpImage && !lcpImage.priority && lcpImage.placeholder === "empty" && !lcpImage.src.startsWith("data:") && !lcpImage.src.startsWith("blob:")) {
|
||
|
|
// https://web.dev/lcp/#measure-lcp-in-javascript
|
||
|
|
(0, _warnonce.warnOnce)('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");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
try {
|
||
|
|
perfObserver.observe({
|
||
|
|
type: "largest-contentful-paint",
|
||
|
|
buffered: true
|
||
|
|
});
|
||
|
|
} catch (err) {
|
||
|
|
// Log error but don't crash the app
|
||
|
|
console.error(err);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
const imgStyle = Object.assign(fill ? {
|
||
|
|
position: "absolute",
|
||
|
|
height: "100%",
|
||
|
|
width: "100%",
|
||
|
|
left: 0,
|
||
|
|
top: 0,
|
||
|
|
right: 0,
|
||
|
|
bottom: 0,
|
||
|
|
objectFit,
|
||
|
|
objectPosition
|
||
|
|
} : {}, showAltText ? {} : {
|
||
|
|
color: "transparent"
|
||
|
|
}, style);
|
||
|
|
const backgroundImage = !blurComplete && placeholder !== "empty" ? placeholder === "blur" ? 'url("data:image/svg+xml;charset=utf-8,' + (0, _imageblursvg.getImageBlurSvg)({
|
||
|
|
widthInt,
|
||
|
|
heightInt,
|
||
|
|
blurWidth,
|
||
|
|
blurHeight,
|
||
|
|
blurDataURL: blurDataURL || "",
|
||
|
|
objectFit: imgStyle.objectFit
|
||
|
|
}) + '")' : 'url("' + placeholder + '")' // assume `data:image/`
|
||
|
|
: null;
|
||
|
|
let placeholderStyle = backgroundImage ? {
|
||
|
|
backgroundSize: imgStyle.objectFit || "cover",
|
||
|
|
backgroundPosition: imgStyle.objectPosition || "50% 50%",
|
||
|
|
backgroundRepeat: "no-repeat",
|
||
|
|
backgroundImage
|
||
|
|
} : {};
|
||
|
|
if (process.env.NODE_ENV === "development") {
|
||
|
|
if (placeholderStyle.backgroundImage && placeholder === "blur" && (blurDataURL == null ? void 0 : blurDataURL.startsWith("/"))) {
|
||
|
|
// During `next dev`, we don't want to generate blur placeholders with webpack
|
||
|
|
// because it can delay starting the dev server. Instead, `next-image-loader.js`
|
||
|
|
// will inline a special url to lazily generate the blur placeholder at request time.
|
||
|
|
placeholderStyle.backgroundImage = 'url("' + blurDataURL + '")';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
const imgAttributes = generateImgAttrs({
|
||
|
|
config,
|
||
|
|
src,
|
||
|
|
unoptimized,
|
||
|
|
width: widthInt,
|
||
|
|
quality: qualityInt,
|
||
|
|
sizes,
|
||
|
|
loader
|
||
|
|
});
|
||
|
|
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
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
const props = {
|
||
|
|
...rest,
|
||
|
|
loading: isLazy ? "lazy" : loading,
|
||
|
|
fetchPriority,
|
||
|
|
width: widthInt,
|
||
|
|
height: heightInt,
|
||
|
|
decoding: "async",
|
||
|
|
className,
|
||
|
|
style: {
|
||
|
|
...imgStyle,
|
||
|
|
...placeholderStyle
|
||
|
|
},
|
||
|
|
sizes: imgAttributes.sizes,
|
||
|
|
srcSet: imgAttributes.srcSet,
|
||
|
|
src: imgAttributes.src
|
||
|
|
};
|
||
|
|
const meta = {
|
||
|
|
unoptimized,
|
||
|
|
priority,
|
||
|
|
placeholder,
|
||
|
|
fill
|
||
|
|
};
|
||
|
|
return {
|
||
|
|
props,
|
||
|
|
meta
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
//# sourceMappingURL=get-img-props.js.map
|