1 // Copyright (c) 2009-2012 Kris Maglione <maglione.k@gmail.com>
3 // This work is licensed for reuse under an MIT license. Details are
4 // given in the LICENSE.txt file included with this file.
10 exports: ["ModuleBase"],
11 require: ["config", "overlay", "services", "util"]
14 var BASE = "resource://dactyl-content/";
18 * The base class for all modules.
20 var ModuleBase = Class("ModuleBase", {
22 * @property {[string]} A list of module prerequisites which
23 * must be initialized before this module is loaded.
27 toString: function () "[module " + this.constructor.className + "]"
32 var Modules = function Modules(window) {
36 * Constructs a new ModuleBase class and makes arrangements for its
37 * initialization. Arguments marked as optional must be either
38 * entirely elided, or they must have the exact type specified.
39 * Loading semantics are as follows:
41 * - A module is guaranteed not to be initialized before any of its
42 * prerequisites as listed in its {@see ModuleBase#requires} member.
43 * - A module is considered initialized once it's been instantiated,
44 * its {@see Class#init} method has been called, and its
45 * instance has been installed into the top-level {@see modules}
47 * - Once the module has been initialized, its module-dependent
48 * initialization functions will be called as described hereafter.
49 * @param {string} name The module's name as it will appear in the
50 * top-level {@see modules} object.
51 * @param {ModuleBase} base The base class for this module.
53 * @param {Object} prototype The prototype for instances of this
54 * object. The object itself is copied and not used as a prototype
56 * @param {Object} classProperties The class properties for the new
59 * @param {Object} moduleInit The module initialization functions
60 * for the new module. Each function is called as soon as the
61 * named module has been initialized. The constructors are
62 * guaranteed to be called in the same order that the dependent
63 * modules were initialized.
66 * @returns {function} The constructor for the resulting module.
68 function Module(name) {
69 let args = Array.slice(arguments);
71 var base = ModuleBase;
72 if (callable(args[1]))
73 base = args.splice(1, 1)[0];
75 let [, prototype, classProperties, moduleInit] = args;
76 prototype._metaInit_ = function () {
77 delete module.prototype._metaInit_;
78 Class.replaceProperty(modules, module.className, this);
80 const module = Class(name, base, prototype, classProperties);
82 module.INIT = moduleInit || {};
83 module.modules = modules;
84 module.prototype.INIT = module.INIT;
85 module.requires = prototype.requires || [];
86 Module.list.push(module);
87 Module.constructors[name] = module;
91 Module.constructors = {};
93 const create = window.Object.create.bind(window.Object);
96 const BASES = [BASE, "resource://dactyl-local-content/"];
98 jsmodules = Cu.createObjectIn(window);
99 jsmodules.NAME = "jsmodules";
100 const modules = update(create(jsmodules), {
101 yes_i_know_i_should_not_report_errors_in_these_branches_thanks: [],
103 jsmodules: jsmodules,
105 get content() this.config.browser.contentWindow || window.content,
111 load: function load(script) {
112 for (let [i, base] in Iterator(BASES)) {
114 JSMLoader.loadSubScript(base + script + ".js", modules, "UTF-8");
118 if (typeof e !== "string") {
119 util.dump("Trying: " + (base + script + ".js") + ":");
125 require(script, jsmodules);
128 util.dump("Loading script " + script + ":");
133 newContext: function newContext(proto, normal, name) {
135 return create(proto);
137 if (services.has("dactyl") && services.dactyl.createGlobal)
138 var sandbox = services.dactyl.createGlobal();
140 sandbox = Components.utils.Sandbox(window, { sandboxPrototype: proto || modules,
141 sandboxName: name || ("Dactyl Sandbox " + ++_id),
145 // sandbox.Object = jsmodules.Object;
146 sandbox.File = jsmodules.File;
147 sandbox.Math = jsmodules.Math;
148 sandbox.__proto__ = proto || modules;
152 get ownPropertyValues() array.compact(
153 Object.getOwnPropertyNames(this)
154 .map(function (name) Object.getOwnPropertyDescriptor(this, name).value, this)),
156 get moduleList() this.ownPropertyValues.filter(function (mod) mod instanceof this.ModuleBase || mod.isLocalModule, this)
159 modules.plugins = create(modules);
160 modules.modules = modules;
166 overlay.overlayWindow(Object.keys(config.overlays), function _overlay(window) ({
167 ready: function onInit(document) {
168 const modules = Modules(window);
169 modules.moduleManager = this;
170 this.modules = modules;
172 window.dactyl = { modules: modules };
174 defineModule.time("load", null, function _load() {
175 config.modules.global
176 .forEach(function (name) {
178 defineModule.time("load", name, require, null, name, modules.jsmodules);
180 lazyRequire(name[0], name.slice(1), modules.jsmodules);
183 config.modules.window
184 .forEach(function (name) defineModule.time("load", name, modules.load, modules, name));
188 load: function onLoad(document) {
191 var { modules, Module } = this.modules;
192 delete window.dactyl;
194 this.startTime = Date.now();
195 this.deferredInit = { load: {} };
198 modules.loaded = this.loaded;
200 this.modules = modules;
203 this.initDependencies("init");
205 modules.config.scripts.forEach(modules.load);
209 defineModule.modules.forEach(function defModule({ lazyInit, constructor: { className } }) {
211 Class.replaceProperty(modules, className, modules[className]);
212 this.initDependencies(className);
215 modules.__defineGetter__(className, function () {
216 let module = modules.jsmodules[className];
217 Class.replaceProperty(modules, className, module);
218 if (module.reallyInit)
219 module.reallyInit(); // :(
221 if (!module.lazyDepends)
222 self.initDependencies(className);
228 cleanup: function cleanup(window) {
229 overlay.windows = overlay.windows.filter(function (w) w != window);
232 unload: function unload(window) {
233 for each (let mod in this.modules.moduleList.reverse()) {
236 if ("destroy" in mod)
237 util.trapErrors("destroy", mod);
241 visible: function visible(window) {
242 // Module.list.forEach(load);
243 this.initDependencies("load");
244 this.modules.times = update({}, defineModule.times);
246 defineModule.loadLog.push("Loaded in " + (Date.now() - this.startTime) + "ms");
248 overlay.windows = array.uniq(overlay.windows.concat(window), true);
251 loadModule: function loadModule(module, prereq, frame) {
252 let { loaded, seen } = this;
253 let { Module, modules } = this.modules;
255 if (isString(module)) {
256 if (!Module.constructors.hasOwnProperty(module))
257 modules.load(module);
258 module = Module.constructors[module];
262 if (Set.has(loaded, module.className))
265 if (Set.add(seen, module.className))
266 throw Error("Module dependency loop.");
268 for (let dep in values(module.requires))
269 this.loadModule(Module.constructors[dep], module.className);
271 defineModule.loadLog.push(
272 "Load" + (isString(prereq) ? " " + prereq + " dependency: " : ": ")
275 if (frame && frame.filename)
276 defineModule.loadLog.push(" from: " + util.fixURI(frame.filename) + ":" + frame.lineNumber);
278 let obj = defineModule.time(module.className, "init", module);
279 Class.replaceProperty(modules, module.className, obj);
281 Set.add(loaded, module.className);
283 if (loaded.dactyl && obj.signals)
284 modules.dactyl.registerObservers(obj);
286 if (!module.lazyDepends)
287 this.initDependencies(module.className);
290 util.dump("Loading " + (module && module.className) + ":");
293 return modules[module.className];
296 deferInit: function deferInit(name, INIT, mod) {
297 let { modules } = this.modules;
299 let init = this.deferredInit[name] || {};
300 this.deferredInit[name] = init;
302 let className = mod.className || mod.constructor.className;
304 if (!Set.has(init, className)) {
305 init[className] = function callee() {
307 this.currentDependency = className;
308 defineModule.time(className, name, INIT[name], mod,
309 modules.dactyl, modules, window);
311 if (!callee.frobbed) {
312 callee.frobbed = true;
313 if (modules[name] instanceof Class)
314 modules[name].withSavedValues(["currentDependency"], finish);
320 INIT[name].require = function (name) { init[name](); };
324 scanModules: function scanModules() {
326 let { Module, modules } = this.modules;
328 defineModule.modules.forEach(function defModule(mod) {
329 let names = Set(Object.keys(mod.INIT));
330 if ("init" in mod.INIT)
331 Set.add(names, "init");
333 keys(names).forEach(function (name) { self.deferInit(name, mod.INIT, mod); });
336 Module.list.forEach(function frobModule(mod) {
338 modules.__defineGetter__(mod.className, function () {
339 delete modules[mod.className];
340 return self.loadModule(mod.className, null, Components.stack.caller);
342 Object.keys(mod.prototype.INIT)
343 .forEach(function (name) { self.deferInit(name, mod.prototype.INIT, mod); });
349 initDependencies: function initDependencies(name, parents) {
350 for (let [k, v] in Iterator(this.deferredInit[name] || {}))
351 if (!parents || ~parents.indexOf(k))
358 } catch(e){ if (!e.stack) e = Error(e); dump(e.fileName+":"+e.lineNumber+": "+e+"\n" + e.stack); }
360 // vim: set fdm=marker sw=4 ts=4 et ft=javascript: