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JsonpMainTemplatePlugin.js
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JsonpMainTemplatePlugin.js
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/*
MIT License http:https://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var Template = require("./Template");
function JsonpMainTemplatePlugin() {}
module.exports = JsonpMainTemplatePlugin;
JsonpMainTemplatePlugin.prototype.constructor = JsonpMainTemplatePlugin;
JsonpMainTemplatePlugin.prototype.apply = function(mainTemplate) {
mainTemplate.plugin("local-vars", function(source, chunk) {
if(chunk.chunks.length > 0) {
return this.asString([
source,
"",
"// objects to store loaded and loading chunks",
"var installedChunks = {",
this.indent(
chunk.ids.map(function(id) {
return id + ": 0";
}).join(",\n")
),
"};"
]);
}
return source;
});
mainTemplate.plugin("require-ensure", function(_, chunk, hash) {
var filename = this.outputOptions.filename || "bundle.js";
var chunkFilename = this.outputOptions.chunkFilename || "[id]." + filename;
var chunkMaps = chunk.getChunkMaps();
var crossOriginLoading = this.outputOptions.crossOriginLoading;
var chunkLoadTimeout = this.outputOptions.chunkLoadTimeout || 120000;
return this.asString([
"if(installedChunks[chunkId] === 0)",
this.indent([
"return Promise.resolve()"
]),
"",
"// an Promise means \"currently loading\".",
"if(installedChunks[chunkId]) {",
this.indent([
"return installedChunks[chunkId][2];"
]),
"}",
"// start chunk loading",
"var head = document.getElementsByTagName('head')[0];",
"var script = document.createElement('script');",
"script.type = 'text/javascript';",
"script.charset = 'utf-8';",
"script.async = true;",
"script.timeout = " + chunkLoadTimeout + ";",
crossOriginLoading ? "script.crossOrigin = '" + crossOriginLoading + "';" : "",
"script.src = " + this.requireFn + ".p + " +
this.applyPluginsWaterfall("asset-path", JSON.stringify(chunkFilename), {
hash: "\" + " + this.renderCurrentHashCode(hash) + " + \"",
hashWithLength: function(length) {
return "\" + " + this.renderCurrentHashCode(hash, length) + " + \"";
}.bind(this),
chunk: {
id: "\" + chunkId + \"",
hash: "\" + " + JSON.stringify(chunkMaps.hash) + "[chunkId] + \"",
hashWithLength: function(length) {
var shortChunkHashMap = {};
Object.keys(chunkMaps.hash).forEach(function(chunkId) {
if(typeof chunkMaps.hash[chunkId] === "string")
shortChunkHashMap[chunkId] = chunkMaps.hash[chunkId].substr(0, length);
});
return "\" + " + JSON.stringify(shortChunkHashMap) + "[chunkId] + \"";
},
name: "\" + (" + JSON.stringify(chunkMaps.name) + "[chunkId]||chunkId) + \""
}
}) + ";",
"var timeout = setTimeout(onScriptComplete, " + chunkLoadTimeout + ");",
"script.onerror = script.onload = onScriptComplete;",
"function onScriptComplete() {",
this.indent([
"// avoid mem leaks in IE.",
"script.onerror = script.onload = null;",
"clearTimeout(timeout);",
"var chunk = installedChunks[chunkId];",
"if(chunk !== 0) {",
this.indent([
"if(chunk) chunk[1](new Error('Loading chunk ' + chunkId + ' failed.'));",
"installedChunks[chunkId] = undefined;"
]),
"}"
]),
"};",
"head.appendChild(script);",
"",
"var promise = new Promise(function(resolve, reject) {",
this.indent([
"installedChunks[chunkId] = [resolve, reject];"
]),
"});",
"return installedChunks[chunkId][2] = promise;"
]);
});
mainTemplate.plugin("bootstrap", function(source, chunk, hash) {
if(chunk.chunks.length > 0) {
var jsonpFunction = this.outputOptions.jsonpFunction || Template.toIdentifier("webpackJsonp" + (this.outputOptions.library || ""));
return this.asString([
source,
"",
"// install a JSONP callback for chunk loading",
"var parentJsonpFunction = window[" + JSON.stringify(jsonpFunction) + "];",
"window[" + JSON.stringify(jsonpFunction) + "] = function webpackJsonpCallback(chunkIds, moreModules, executeModule) {",
this.indent([
"// add \"moreModules\" to the modules object,",
"// then flag all \"chunkIds\" as loaded and fire callback",
"var moduleId, chunkId, i = 0, resolves = [];",
"for(;i < chunkIds.length; i++) {",
this.indent([
"chunkId = chunkIds[i];",
"if(installedChunks[chunkId])",
this.indent("resolves.push(installedChunks[chunkId][0]);"),
"installedChunks[chunkId] = 0;"
]),
"}",
"for(moduleId in moreModules) {",
this.indent(this.renderAddModule(hash, chunk, "moduleId", "moreModules[moduleId]")),
"}",
"if(parentJsonpFunction) parentJsonpFunction(chunkIds, moreModules);",
"while(resolves.length)",
this.indent("resolves.shift()();"), (this.entryPointInChildren(chunk) ? [
"if(executeModule + 1) { // typeof executeModule === \"number\"",
this.indent([
"return " + this.requireFn + "(executeModule);"
]),
"}"
] : "")
]),
"};"
]);
}
return source;
});
mainTemplate.plugin("hot-bootstrap", function(source, chunk, hash) {
var hotUpdateChunkFilename = this.outputOptions.hotUpdateChunkFilename;
var hotUpdateMainFilename = this.outputOptions.hotUpdateMainFilename;
var hotUpdateFunction = this.outputOptions.hotUpdateFunction || Template.toIdentifier("webpackHotUpdate" + (this.outputOptions.library || ""));
var currentHotUpdateChunkFilename = this.applyPluginsWaterfall("asset-path", JSON.stringify(hotUpdateChunkFilename), {
hash: "\" + " + this.renderCurrentHashCode(hash) + " + \"",
hashWithLength: function(length) {
return "\" + " + this.renderCurrentHashCode(hash, length) + " + \"";
}.bind(this),
chunk: {
id: "\" + chunkId + \""
}
});
var currentHotUpdateMainFilename = this.applyPluginsWaterfall("asset-path", JSON.stringify(hotUpdateMainFilename), {
hash: "\" + " + this.renderCurrentHashCode(hash) + " + \"",
hashWithLength: function(length) {
return "\" + " + this.renderCurrentHashCode(hash, length) + " + \"";
}.bind(this)
});
return source + "\n" +
"var parentHotUpdateCallback = this[" + JSON.stringify(hotUpdateFunction) + "];\n" +
"this[" + JSON.stringify(hotUpdateFunction) + "] = " + Template.getFunctionContent(require("./JsonpMainTemplate.runtime.js"))
.replace(/\/\/\$semicolon/g, ";")
.replace(/\$require\$/g, this.requireFn)
.replace(/\$hotMainFilename\$/g, currentHotUpdateMainFilename)
.replace(/\$hotChunkFilename\$/g, currentHotUpdateChunkFilename)
.replace(/\$hash\$/g, JSON.stringify(hash));
});
mainTemplate.plugin("hash", function(hash) {
hash.update("jsonp");
hash.update("4");
hash.update(this.outputOptions.filename + "");
hash.update(this.outputOptions.chunkFilename + "");
hash.update(this.outputOptions.jsonpFunction + "");
hash.update(this.outputOptions.library + "");
});
};