WebWorkerMainTemplatePlugin.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var Template = require("../Template");
function WebWorkerMainTemplatePlugin() {}
module.exports = WebWorkerMainTemplatePlugin;
WebWorkerMainTemplatePlugin.prototype.constructor = WebWorkerMainTemplatePlugin;
WebWorkerMainTemplatePlugin.prototype.apply = function(mainTemplate) {
mainTemplate.plugin("local-vars", function(source, chunk) {
if(chunk.chunks.length > 0) {
return this.asString([
source,
"",
"// object to store loaded chunks",
"// \"1\" means \"already loaded\"",
"var installedChunks = {",
this.indent(
chunk.ids.map(function(id) {
return id + ": 1";
}).join(",\n")
),
"};"
]);
}
return source;
});
mainTemplate.plugin("require-ensure", function(_, chunk, hash) {
var chunkFilename = this.outputOptions.chunkFilename;
return this.asString([
"// \"1\" is the signal for \"already loaded\"",
"if(!installedChunks[chunkId]) {",
this.indent([
"importScripts(" +
this.applyPluginsWaterfall("asset-path", JSON.stringify(chunkFilename), {
hash: "\" + " + this.renderCurrentHashCode(hash) + " + \"",
hashWithLength: function(length) {
return "\" + " + this.renderCurrentHashCode(hash, length) + " + \"";
}.bind(this),
chunk: {
id: "\" + chunkId + \""
}
}) + ");"
]),
"}",
"return Promise.resolve();"
]);
});
mainTemplate.plugin("bootstrap", function(source, chunk, hash) {
if(chunk.chunks.length > 0) {
var chunkCallbackName = this.outputOptions.chunkCallbackName || Template.toIdentifier("webpackChunk" + (this.outputOptions.library || ""));
return this.asString([
source,
"this[" + JSON.stringify(chunkCallbackName) + "] = function webpackChunkCallback(chunkIds, moreModules) {",
this.indent([
"for(var moduleId in moreModules) {",
this.indent(this.renderAddModule(hash, chunk, "moduleId", "moreModules[moduleId]")),
"}",
"while(chunkIds.length)",
this.indent("installedChunks[chunkIds.pop()] = 1;")
]),
"};"
]);
}
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("./WebWorkerMainTemplate.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("webworker");
hash.update("3");
hash.update(this.outputOptions.publicPath + "");
hash.update(this.outputOptions.filename + "");
hash.update(this.outputOptions.chunkFilename + "");
hash.update(this.outputOptions.chunkCallbackName + "");
hash.update(this.outputOptions.library + "");
});
};