1 // Copyright (c) 2009-2011 by 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.
9 Components.utils.import("resource://dactyl/bootstrap.jsm");
10 defineModule("main", {
11 exports: ["ModuleBase"],
12 require: ["config", "overlay", "services", "util"]
15 var BASE = "resource://dactyl-content/";
19 * The base class for all modules.
21 var ModuleBase = Class("ModuleBase", {
23 * @property {[string]} A list of module prerequisites which
24 * must be initialized before this module is loaded.
28 toString: function () "[module " + this.constructor.className + "]"
33 var Modules = function Modules(window) {
37 * Constructs a new ModuleBase class and makes arrangements for its
38 * initialization. Arguments marked as optional must be either
39 * entirely elided, or they must have the exact type specified.
40 * Loading semantics are as follows:
42 * - A module is guaranteed not to be initialized before any of its
43 * prerequisites as listed in its {@see ModuleBase#requires} member.
44 * - A module is considered initialized once it's been instantiated,
45 * its {@see Class#init} method has been called, and its
46 * instance has been installed into the top-level {@see modules}
48 * - Once the module has been initialized, its module-dependent
49 * initialization functions will be called as described hereafter.
50 * @param {string} name The module's name as it will appear in the
51 * top-level {@see modules} object.
52 * @param {ModuleBase} base The base class for this module.
54 * @param {Object} prototype The prototype for instances of this
55 * object. The object itself is copied and not used as a prototype
57 * @param {Object} classProperties The class properties for the new
60 * @param {Object} moduleInit The module initialization functions
61 * for the new module. Each function is called as soon as the
62 * named module has been initialized. The constructors are
63 * guaranteed to be called in the same order that the dependent
64 * modules were initialized.
67 * @returns {function} The constructor for the resulting module.
69 function Module(name) {
70 let args = Array.slice(arguments);
72 var base = ModuleBase;
73 if (callable(args[1]))
74 base = args.splice(1, 1)[0];
76 let [, prototype, classProperties, moduleInit] = args;
77 prototype._metaInit_ = function () {
78 delete module.prototype._metaInit_;
79 Class.replaceProperty(modules, module.className, this);
81 const module = Class(name, base, prototype, classProperties);
83 module.INIT = moduleInit || {};
84 module.modules = modules;
85 module.prototype.INIT = module.INIT;
86 module.requires = prototype.requires || [];
87 Module.list.push(module);
88 Module.constructors[name] = module;
92 Module.constructors = {};
94 const create = window.Object.create || (function () {
95 window.__dactyl_eval_string = "(function (proto) ({ __proto__: proto }))";
96 JSMLoader.loadSubScript(BASE + "eval.js", window);
98 let res = window.__dactyl_eval_result;
99 delete window.__dactyl_eval_string;
100 delete window.__dactyl_eval_result;
105 const BASES = [BASE, "resource://dactyl-local-content/"];
107 const jsmodules = { NAME: "jsmodules" };
108 const modules = update(create(jsmodules), {
109 yes_i_know_i_should_not_report_errors_in_these_branches_thanks: [],
111 jsmodules: jsmodules,
113 get content() this.config.browser.contentWindow || window.content,
119 load: function load(script) {
120 for (let [i, base] in Iterator(BASES)) {
122 JSMLoader.loadSubScript(base + script + ".js", modules, "UTF-8");
126 if (typeof e !== "string") {
127 util.dump("Trying: " + (base + script + ".js") + ":");
133 require(jsmodules, script);
136 util.dump("Loading script " + script + ":");
141 newContext: function newContext(proto, normal, name) {
143 return create(proto);
145 if (services.has("dactyl") && services.dactyl.createGlobal)
146 var sandbox = services.dactyl.createGlobal();
148 sandbox = Components.utils.Sandbox(window, { sandboxPrototype: proto || modules,
149 sandboxName: name || ("Dactyl Sandbox " + ++_id),
153 sandbox.Object = jsmodules.Object;
154 sandbox.File = jsmodules.File;
155 sandbox.Math = jsmodules.Math;
156 sandbox.__proto__ = proto || modules;
160 get ownPropertyValues() array.compact(
161 Object.getOwnPropertyNames(this)
162 .map(function (name) Object.getOwnPropertyDescriptor(this, name).value, this)),
164 get moduleList() this.ownPropertyValues.filter(function (mod) mod instanceof this.ModuleBase || mod.isLocalModule, this)
167 modules.plugins = create(modules);
168 modules.modules = modules;
174 overlay.overlayWindow(Object.keys(config.overlays), function _overlay(window) ({
175 ready: function onInit(document) {
176 const modules = Modules(window);
177 modules.moduleManager = this;
178 this.modules = modules;
180 window.dactyl = { modules: modules };
182 defineModule.time("load", null, function _load() {
183 config.modules.global
184 .forEach(function (name) defineModule.time("load", name, require, null, modules.jsmodules, name));
186 config.modules.window
187 .forEach(function (name) defineModule.time("load", name, modules.load, modules, name));
191 load: function onLoad(document) {
194 var { modules, Module } = this.modules;
195 delete window.dactyl;
197 this.startTime = Date.now();
198 this.deferredInit = { load: {} };
201 modules.loaded = this.loaded;
203 this.modules = modules;
206 this.initDependencies("init");
208 modules.config.scripts.forEach(modules.load);
212 defineModule.modules.forEach(function defModule({ lazyInit, constructor: { className } }) {
214 Class.replaceProperty(modules, className, modules[className]);
215 this.initDependencies(className);
218 modules.__defineGetter__(className, function () {
219 let module = modules.jsmodules[className];
220 Class.replaceProperty(modules, className, module);
221 if (module.reallyInit)
222 module.reallyInit(); // :(
224 if (!module.lazyDepends)
225 self.initDependencies(className);
231 cleanup: function cleanup(window) {
232 overlay.windows = overlay.windows.filter(function (w) w != window);
235 unload: function unload(window) {
236 for each (let mod in this.modules.moduleList.reverse()) {
239 if ("destroy" in mod)
240 util.trapErrors("destroy", mod);
244 visible: function visible(window) {
245 // Module.list.forEach(load);
246 this.initDependencies("load");
247 this.modules.times = update({}, defineModule.times);
249 defineModule.loadLog.push("Loaded in " + (Date.now() - this.startTime) + "ms");
251 overlay.windows = array.uniq(overlay.windows.concat(window), true);
254 loadModule: function loadModule(module, prereq, frame) {
255 let { loaded, seen } = this;
256 let { Module, modules } = this.modules;
258 if (isString(module)) {
259 if (!Module.constructors.hasOwnProperty(module))
260 modules.load(module);
261 module = Module.constructors[module];
265 if (Set.has(loaded, module.className))
268 if (Set.add(seen, module.className))
269 throw Error("Module dependency loop.");
271 for (let dep in values(module.requires))
272 this.loadModule(Module.constructors[dep], module.className);
274 defineModule.loadLog.push(
275 "Load" + (isString(prereq) ? " " + prereq + " dependency: " : ": ")
278 if (frame && frame.filename)
279 defineModule.loadLog.push(" from: " + util.fixURI(frame.filename) + ":" + frame.lineNumber);
281 let obj = defineModule.time(module.className, "init", module);
282 Class.replaceProperty(modules, module.className, obj);
284 Set.add(loaded, module.className);
286 if (loaded.dactyl && obj.signals)
287 modules.dactyl.registerObservers(obj);
289 if (!module.lazyDepends)
290 this.initDependencies(module.className);
293 util.dump("Loading " + (module && module.className) + ":");
296 return modules[module.className];
299 deferInit: function deferInit(name, INIT, mod) {
300 let { modules } = this.modules;
302 let init = this.deferredInit[name] || {};
303 this.deferredInit[name] = init;
305 let className = mod.className || mod.constructor.className;
307 if (!Set.has(init, className)) {
308 init[className] = function callee() {
310 this.currentDependency = className;
311 defineModule.time(className, name, INIT[name], mod,
312 modules.dactyl, modules, window);
314 if (!callee.frobbed) {
315 callee.frobbed = true;
316 if (modules[name] instanceof Class)
317 modules[name].withSavedValues(["currentDependency"], finish);
323 INIT[name].require = function (name) { init[name](); };
327 scanModules: function scanModules() {
329 let { Module, modules } = this.modules;
331 defineModule.modules.forEach(function defModule(mod) {
332 let names = Set(Object.keys(mod.INIT));
333 if ("init" in mod.INIT)
334 Set.add(names, "init");
336 keys(names).forEach(function (name) { self.deferInit(name, mod.INIT, mod); });
339 Module.list.forEach(function frobModule(mod) {
341 modules.__defineGetter__(mod.className, function () {
342 delete modules[mod.className];
343 return self.loadModule(mod.className, null, Components.stack.caller);
345 Object.keys(mod.prototype.INIT)
346 .forEach(function (name) { self.deferInit(name, mod.prototype.INIT, mod); });
352 initDependencies: function initDependencies(name, parents) {
353 for (let [k, v] in Iterator(this.deferredInit[name] || {}))
354 if (!parents || ~parents.indexOf(k))
361 } catch(e){ if (!e.stack) e = Error(e); dump(e.fileName+":"+e.lineNumber+": "+e+"\n" + e.stack); }
363 // vim: set fdm=marker sw=4 ts=4 et ft=javascript: