mirror of https://github.com/webpack/webpack.git
325 lines
11 KiB
JavaScript
325 lines
11 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const { SyncWaterfallHook } = require("tapable");
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const { ConcatSource } = require("webpack-sources");
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const Compilation = require("../Compilation");
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const HotUpdateChunk = require("../HotUpdateChunk");
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const RuntimeGlobals = require("../RuntimeGlobals");
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const Template = require("../Template");
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const JavascriptModulesPlugin = require("../javascript/JavascriptModulesPlugin");
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const JsonpChunkLoadingRuntimeModule = require("./JsonpChunkLoadingRuntimeModule");
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const getEntryInfo = require("./JsonpHelpers").getEntryInfo;
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/** @typedef {import("../Chunk")} Chunk */
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/** @typedef {import("../Compilation")} Compilation */
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/** @typedef {import("../Compiler")} Compiler */
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/**
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* @typedef {Object} JsonpCompilationPluginHooks
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* @property {SyncWaterfallHook<[string, Chunk, string]>} jsonpScript
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* @property {SyncWaterfallHook<[string, Chunk, string]>} linkPreload
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* @property {SyncWaterfallHook<[string, Chunk, string]>} linkPrefetch
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*/
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/** @type {WeakMap<Compilation, JsonpCompilationPluginHooks>} */
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const compilationHooksMap = new WeakMap();
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class JsonpTemplatePlugin {
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/**
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* @param {Compilation} compilation the compilation
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* @returns {JsonpCompilationPluginHooks} hooks
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*/
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static getCompilationHooks(compilation) {
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if (!(compilation instanceof Compilation)) {
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throw new TypeError(
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"The 'compilation' argument must be an instance of Compilation"
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);
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}
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let hooks = compilationHooksMap.get(compilation);
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if (hooks === undefined) {
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hooks = {
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jsonpScript: new SyncWaterfallHook(["source", "chunk", "hash"]),
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linkPreload: new SyncWaterfallHook(["source", "chunk", "hash"]),
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linkPrefetch: new SyncWaterfallHook(["source", "chunk", "hash"])
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};
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compilationHooksMap.set(compilation, hooks);
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}
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return hooks;
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}
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/**
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* @param {Compiler} compiler the compiler instance
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* @returns {void}
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*/
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apply(compiler) {
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compiler.hooks.thisCompilation.tap("JsonpTemplatePlugin", compilation => {
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const hooks = JavascriptModulesPlugin.getCompilationHooks(compilation);
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hooks.renderChunk.tap("JsonpTemplatePlugin", (modules, renderContext) => {
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const { chunk, chunkGraph, runtimeTemplate } = renderContext;
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const hotUpdateChunk = chunk instanceof HotUpdateChunk ? chunk : null;
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const globalObject = runtimeTemplate.outputOptions.globalObject;
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const source = new ConcatSource();
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const runtimeModules = chunkGraph.getChunkRuntimeModulesInOrder(chunk);
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const runtimePart =
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runtimeModules.length > 0 &&
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Template.renderChunkRuntimeModules(runtimeModules, renderContext);
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if (hotUpdateChunk) {
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const jsonpFunction = runtimeTemplate.outputOptions.hotUpdateFunction;
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source.add(`${globalObject}[${JSON.stringify(jsonpFunction)}](`);
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source.add(`${JSON.stringify(chunk.id)},`);
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source.add(modules);
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if (runtimePart) {
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source.add(",\n");
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source.add(runtimePart);
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}
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source.add(")");
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} else {
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const jsonpFunction = runtimeTemplate.outputOptions.jsonpFunction;
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source.add(
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`(${globalObject}[${JSON.stringify(
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jsonpFunction
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)}] = ${globalObject}[${JSON.stringify(
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jsonpFunction
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)}] || []).push([`
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);
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source.add(`${JSON.stringify(chunk.ids)},`);
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source.add(modules);
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const entries = getEntryInfo(chunkGraph, chunk);
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const prefetchChunks = chunk.getChildIdsByOrders(chunkGraph).prefetch;
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const entriesPart =
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entries.length > 0 && `,${JSON.stringify(entries)}`;
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const prefetchPart =
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prefetchChunks &&
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prefetchChunks.length > 0 &&
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`,${JSON.stringify(prefetchChunks)}`;
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if (entriesPart || runtimePart || prefetchPart) {
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source.add(entriesPart || ",0");
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}
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if (runtimePart || prefetchPart) {
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source.add(",\n");
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source.add(runtimePart || "0");
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}
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if (prefetchPart) {
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source.add(prefetchPart);
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}
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source.add("])");
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}
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return source;
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});
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hooks.chunkHash.tap(
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"JsonpTemplatePlugin",
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(chunk, hash, { chunkGraph, runtimeTemplate }) => {
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if (chunk.hasRuntime()) return;
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hash.update("JsonpTemplatePlugin");
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hash.update("1");
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hash.update(JSON.stringify(getEntryInfo(chunkGraph, chunk)));
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hash.update(
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JSON.stringify(chunk.getChildIdsByOrders(chunkGraph).prefetch) || ""
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);
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hash.update(`${runtimeTemplate.outputOptions.jsonpFunction}`);
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hash.update(`${runtimeTemplate.outputOptions.hotUpdateFunction}`);
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hash.update(`${runtimeTemplate.outputOptions.globalObject}`);
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}
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);
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const needEntryDeferringCode = chunk => {
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for (const chunkGroup of chunk.groupsIterable) {
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if (chunkGroup.chunks.length > 1) return true;
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}
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return false;
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};
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const needPrefetchingCode = chunk => {
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const allPrefetchChunks = chunk.getChildIdsByOrdersMap(
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compilation.chunkGraph,
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true
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).prefetch;
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return allPrefetchChunks && Object.keys(allPrefetchChunks).length;
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};
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const {
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jsonpScript,
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linkPreload,
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linkPrefetch
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} = JsonpTemplatePlugin.getCompilationHooks(compilation);
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jsonpScript.tap("JsonpTemplatePlugin", (_, chunk, hash) => {
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const {
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crossOriginLoading,
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chunkLoadTimeout,
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jsonpScriptType
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} = compilation.outputOptions;
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return Template.asString([
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"var script = document.createElement('script');",
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"var onScriptComplete;",
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jsonpScriptType
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? `script.type = ${JSON.stringify(jsonpScriptType)};`
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: "",
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"script.charset = 'utf-8';",
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`script.timeout = ${chunkLoadTimeout / 1000};`,
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`if (${RuntimeGlobals.scriptNonce}) {`,
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Template.indent(
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`script.setAttribute("nonce", ${RuntimeGlobals.scriptNonce});`
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),
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"}",
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`script.src = url;`,
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crossOriginLoading
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? Template.asString([
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"if (script.src.indexOf(window.location.origin + '/') !== 0) {",
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Template.indent(
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`script.crossOrigin = ${JSON.stringify(crossOriginLoading)};`
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),
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"}"
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])
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: "",
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"// create error before stack unwound to get useful stacktrace later",
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"var error = new Error();",
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"onScriptComplete = function (event) {",
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Template.indent([
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"onScriptComplete = function() {};",
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"// avoid mem leaks in IE.",
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"script.onerror = script.onload = null;",
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"clearTimeout(timeout);",
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"var reportError = loadingEnded();",
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"if(reportError) {",
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Template.indent([
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"var errorType = event && (event.type === 'load' ? 'missing' : event.type);",
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"var realSrc = event && event.target && event.target.src;",
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"error.message = 'Loading chunk ' + chunkId + ' failed.\\n(' + errorType + ': ' + realSrc + ')';",
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"error.name = 'ChunkLoadError';",
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"error.type = errorType;",
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"error.request = realSrc;",
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"reportError(error);"
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]),
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"}"
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]),
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"};",
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"var timeout = setTimeout(function(){",
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Template.indent([
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"onScriptComplete({ type: 'timeout', target: script });"
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]),
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`}, ${chunkLoadTimeout});`,
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"script.onerror = script.onload = onScriptComplete;"
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]);
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});
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linkPreload.tap("JsonpTemplatePlugin", (_, chunk, hash) => {
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const {
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crossOriginLoading,
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jsonpScriptType
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} = compilation.outputOptions;
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return Template.asString([
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"var link = document.createElement('link');",
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jsonpScriptType
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? `link.type = ${JSON.stringify(jsonpScriptType)};`
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: "",
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"link.charset = 'utf-8';",
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`if (${RuntimeGlobals.scriptNonce}) {`,
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Template.indent(
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`link.setAttribute("nonce", ${RuntimeGlobals.scriptNonce});`
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),
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"}",
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'link.rel = "preload";',
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'link.as = "script";',
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`link.href = ${RuntimeGlobals.publicPath} + ${RuntimeGlobals.getChunkScriptFilename}(chunkId);`,
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crossOriginLoading
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? Template.asString([
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"if (link.href.indexOf(window.location.origin + '/') !== 0) {",
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Template.indent(
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`link.crossOrigin = ${JSON.stringify(crossOriginLoading)};`
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),
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"}"
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])
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: ""
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]);
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});
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linkPrefetch.tap("JsonpTemplatePlugin", (_, chunk, hash) => {
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const { crossOriginLoading } = compilation.outputOptions;
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return Template.asString([
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"var link = document.createElement('link');",
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crossOriginLoading
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? `link.crossOrigin = ${JSON.stringify(crossOriginLoading)};`
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: "",
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`if (${RuntimeGlobals.scriptNonce}) {`,
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Template.indent(
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`link.setAttribute("nonce", ${RuntimeGlobals.scriptNonce});`
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),
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"}",
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'link.rel = "prefetch";',
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'link.as = "script";',
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`link.href = ${RuntimeGlobals.publicPath} + ${RuntimeGlobals.getChunkScriptFilename}(chunkId);`
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]);
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});
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const onceForChunkSet = new WeakSet();
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const handler = (chunk, set) => {
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if (onceForChunkSet.has(chunk)) return;
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onceForChunkSet.add(chunk);
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set.add(RuntimeGlobals.moduleFactoriesAddOnly);
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compilation.addRuntimeModule(
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chunk,
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new JsonpChunkLoadingRuntimeModule(
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set,
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jsonpScript,
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linkPreload,
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linkPrefetch
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)
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);
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};
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compilation.hooks.runtimeRequirementInTree
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.for(RuntimeGlobals.ensureChunkHandlers)
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.tap("JsonpTemplatePlugin", handler);
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compilation.hooks.runtimeRequirementInTree
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.for(RuntimeGlobals.hmrDownloadUpdateHandlers)
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.tap("JsonpTemplatePlugin", handler);
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compilation.hooks.runtimeRequirementInTree
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.for(RuntimeGlobals.hmrDownloadManifest)
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.tap("JsonpTemplatePlugin", handler);
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compilation.hooks.runtimeRequirementInTree
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.for(RuntimeGlobals.ensureChunkHandlers)
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.tap("JsonpTemplatePlugin", (chunk, set) => {
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set.add(RuntimeGlobals.publicPath);
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set.add(RuntimeGlobals.getChunkScriptFilename);
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});
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compilation.hooks.runtimeRequirementInTree
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.for(RuntimeGlobals.hmrDownloadUpdateHandlers)
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.tap("JsonpTemplatePlugin", (chunk, set) => {
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set.add(RuntimeGlobals.publicPath);
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set.add(RuntimeGlobals.getChunkUpdateScriptFilename);
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set.add(RuntimeGlobals.moduleCache);
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set.add(RuntimeGlobals.hmrModuleData);
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set.add(RuntimeGlobals.moduleFactoriesAddOnly);
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});
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compilation.hooks.runtimeRequirementInTree
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.for(RuntimeGlobals.hmrDownloadManifest)
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.tap("JsonpTemplatePlugin", (chunk, set) => {
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set.add(RuntimeGlobals.publicPath);
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set.add(RuntimeGlobals.getUpdateManifestFilename);
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});
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compilation.hooks.additionalTreeRuntimeRequirements.tap(
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"JsonpTemplatePlugin",
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(chunk, set) => {
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const withDefer = needEntryDeferringCode(chunk);
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if (withDefer || needPrefetchingCode(chunk)) {
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set.add(RuntimeGlobals.startup);
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if (withDefer) set.add(RuntimeGlobals.startupNoDefault);
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handler(chunk, set);
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}
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if (withDefer) {
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set.add(RuntimeGlobals.require);
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}
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}
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);
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});
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}
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}
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module.exports = JsonpTemplatePlugin;
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