mirror of
https://github.com/classilla/tenfourfox.git
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80 lines
2.8 KiB
JavaScript
80 lines
2.8 KiB
JavaScript
var { classes: Cc, interfaces: Ci, utils: Cu } = Components;
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const loaders = Cu.import("resource://gre/modules/commonjs/toolkit/loader.js", {});
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const { devtools, DevToolsLoader } = Cu.import("resource://devtools/shared/Loader.jsm", {});
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const { joinURI } = devtools.require("devtools/shared/path");
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Cu.import("resource://gre/modules/AppConstants.jsm");
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const BROWSER_BASED_DIRS = [
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"resource://devtools/client/shared/vendor",
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"resource://devtools/client/shared/components",
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"resource://devtools/client/shared/redux"
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];
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/*
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* Create a loader to be used in a browser environment. This evaluates
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* modules in their own environment, but sets window (the normal
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* global object) as the sandbox prototype, so when a variable is not
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* defined it checks `window` before throwing an error. This makes all
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* browser APIs available to modules by default, like a normal browser
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* environment, but modules are still evaluated in their own scope.
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*
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* Another very important feature of this loader is that it *only*
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* deals with modules loaded from under `baseURI`. Anything loaded
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* outside of that path will still be loaded from the devtools loader,
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* so all system modules are still shared and cached across instances.
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* An exception to this is anything under
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* `devtools/client/shared/{vendor/components}`, which is where shared libraries
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* and React components live that should be evaluated in a browser environment.
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*
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* @param string baseURI
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* Base path to load modules from.
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* @param Object window
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* The window instance to evaluate modules within
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* @return Object
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* An object with two properties:
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* - loader: the Loader instance
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* - require: a function to require modules with
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*/
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function BrowserLoader(baseURI, window) {
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const loaderOptions = devtools.require("@loader/options");
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const dynamicPaths = {};
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if(AppConstants.DEBUG || AppConstants.DEBUG_JS_MODULES) {
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dynamicPaths["devtools/client/shared/vendor/react"] =
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"resource://devtools/client/shared/vendor/react-dev";
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};
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const opts = {
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id: "browser-loader",
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sharedGlobal: true,
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sandboxPrototype: window,
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paths: Object.assign({}, dynamicPaths, loaderOptions.paths),
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invisibleToDebugger: loaderOptions.invisibleToDebugger,
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require: (id, require) => {
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const uri = require.resolve(id);
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const isBrowserDir = BROWSER_BASED_DIRS.filter(dir => {
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return uri.startsWith(dir);
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}).length > 0;
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if (!uri.startsWith(baseURI) && !isBrowserDir) {
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return devtools.require(uri);
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}
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return require(uri);
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}
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};
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const mainModule = loaders.Module(baseURI, joinURI(baseURI, "main.js"));
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const mainLoader = loaders.Loader(opts);
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return {
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loader: mainLoader,
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require: loaders.Require(mainLoader, mainModule)
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};
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}
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this.BrowserLoader = BrowserLoader;
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this.EXPORTED_SYMBOLS = ["BrowserLoader"];
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