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 + "]"
31 var Modules = function Modules(window) {
35 * Constructs a new ModuleBase class and makes arrangements for its
36 * initialization. Arguments marked as optional must be either
37 * entirely elided, or they must have the exact type specified.
38 * Loading semantics are as follows:
40 * - A module is guaranteed not to be initialized before any of its
41 * prerequisites as listed in its {@see ModuleBase#requires} member.
42 * - A module is considered initialized once it's been instantiated,
43 * its {@see Class#init} method has been called, and its
44 * instance has been installed into the top-level {@see modules}
46 * - Once the module has been initialized, its module-dependent
47 * initialization functions will be called as described hereafter.
48 * @param {string} name The module's name as it will appear in the
49 * top-level {@see modules} object.
50 * @param {ModuleBase} base The base class for this module.
52 * @param {Object} prototype The prototype for instances of this
53 * object. The object itself is copied and not used as a prototype
55 * @param {Object} classProperties The class properties for the new
58 * @param {Object} moduleInit The module initialization functions
59 * for the new module. Each function is called as soon as the
60 * named module has been initialized. The constructors are
61 * guaranteed to be called in the same order that the dependent
62 * modules were initialized.
65 * @returns {function} The constructor for the resulting module.
67 function Module(name) {
68 let args = Array.slice(arguments);
70 var base = ModuleBase;
71 if (callable(args[1]))
72 base = args.splice(1, 1)[0];
74 let [, prototype, classProperties, moduleInit] = args;
75 prototype._metaInit_ = function () {
76 delete module.prototype._metaInit_;
77 Class.replaceProperty(modules, module.className, this);
79 const module = Class(name, base, prototype, classProperties);
81 module.INIT = moduleInit || {};
82 module.modules = modules;
83 module.prototype.INIT = module.INIT;
84 module.requires = prototype.requires || [];
85 Module.list.push(module);
86 Module.constructors[name] = module;
90 Module.constructors = {};
92 const create = window.Object.create || (function () {
93 window.__dactyl_eval_string = "(function (proto) ({ __proto__: proto }))";
94 JSMLoader.loadSubScript(BASE + "eval.js", window);
96 let res = window.__dactyl_eval_result;
97 delete window.__dactyl_eval_string;
98 delete window.__dactyl_eval_result;
103 const BASES = [BASE, "resource://dactyl-local-content/"];
105 const jsmodules = { NAME: "jsmodules" };
106 const modules = update(create(jsmodules), {
107 yes_i_know_i_should_not_report_errors_in_these_branches_thanks: [],
109 jsmodules: jsmodules,
111 get content() this.config.browser.contentWindow || window.content,
117 load: function load(script) {
118 for (let [i, base] in Iterator(BASES)) {
120 JSMLoader.loadSubScript(base + script + ".js", modules, "UTF-8");
124 if (typeof e !== "string") {
125 util.dump("Trying: " + (base + script + ".js") + ":");
131 require(jsmodules, script);
134 util.dump("Loading script " + script + ":");
139 newContext: function newContext(proto, normal) {
141 return create(proto);
143 if (services.has("dactyl") && services.dactyl.createGlobal)
144 var sandbox = services.dactyl.createGlobal();
146 sandbox = Components.utils.Sandbox(window, { sandboxPrototype: proto || modules,
150 sandbox.Object = jsmodules.Object;
151 sandbox.File = jsmodules.File;
152 sandbox.Math = jsmodules.Math;
153 sandbox.__proto__ = proto || modules;
157 get ownPropertyValues() array.compact(
158 Object.getOwnPropertyNames(this)
159 .map(function (name) Object.getOwnPropertyDescriptor(this, name).value, this)),
161 get moduleList() this.ownPropertyValues.filter(function (mod) mod instanceof this.ModuleBase || mod.isLocalModule, this)
164 modules.plugins = create(modules);
165 modules.modules = modules;
171 overlay.overlayWindow(Object.keys(config.overlays), function _overlay(window) ({
172 ready: function onInit(document) {
173 const modules = Modules(window);
174 modules.moduleManager = this;
175 this.modules = modules;
177 window.dactyl = { modules: modules };
179 defineModule.time("load", null, function _load() {
180 config.modules.global
181 .forEach(function (name) defineModule.time("load", name, require, null, modules.jsmodules, name));
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 defineModule.modules.forEach(function defModule(mod) {
201 let names = Set(Object.keys(mod.INIT));
202 if ("init" in mod.INIT)
203 Set.add(names, "init");
205 keys(names).forEach(function (name) { self.deferInit(name, mod.INIT, mod); });
207 this.modules = modules;
210 this.initDependencies("init");
212 modules.config.scripts.forEach(modules.load);
216 defineModule.modules.forEach(function defModule({ lazyInit, constructor: { className } }) {
218 Class.replaceProperty(modules, className, modules[className]);
219 this.initDependencies(className);
222 modules.__defineGetter__(className, function () {
223 let module = modules.jsmodules[className];
224 Class.replaceProperty(modules, className, module);
225 if (module.reallyInit)
226 module.reallyInit(); // :(
228 if (!module.lazyDepends)
229 self.initDependencies(className);
235 cleanup: function cleanup(window) {
236 overlay.windows = overlay.windows.filter(function (w) w != window);
239 unload: function unload(window) {
240 for each (let mod in this.modules.moduleList.reverse()) {
243 if ("destroy" in mod)
244 util.trapErrors("destroy", mod);
248 visible: function visible(window) {
249 // Module.list.forEach(load);
250 this.initDependencies("load");
251 this.modules.times = update({}, defineModule.times);
253 defineModule.loadLog.push("Loaded in " + (Date.now() - this.startTime) + "ms");
255 overlay.windows = array.uniq(overlay.windows.concat(window), true);
258 loadModule: function loadModule(module, prereq, frame) {
259 let { loaded, seen } = this;
260 let { Module, modules } = this.modules;
262 if (isString(module)) {
263 if (!Module.constructors.hasOwnProperty(module))
264 modules.load(module);
265 module = Module.constructors[module];
269 if (Set.has(loaded, module.className))
272 if (Set.add(seen, module.className))
273 throw Error("Module dependency loop.");
275 for (let dep in values(module.requires))
276 this.loadModule(Module.constructors[dep], module.className);
278 defineModule.loadLog.push(
279 "Load" + (isString(prereq) ? " " + prereq + " dependency: " : ": ")
282 if (frame && frame.filename)
283 defineModule.loadLog.push(" from: " + util.fixURI(frame.filename) + ":" + frame.lineNumber);
285 let obj = defineModule.time(module.className, "init", module);
286 Class.replaceProperty(modules, module.className, obj);
288 Set.add(loaded, module.className);
290 if (loaded.dactyl && obj.signals)
291 modules.dactyl.registerObservers(obj);
293 if (!module.lazyDepends)
294 this.initDependencies(module.className);
297 util.dump("Loading " + (module && module.className) + ":");
300 return modules[module.className];
303 deferInit: function deferInit(name, INIT, mod) {
304 let { modules } = this.modules;
306 let init = this.deferredInit[name] || {};
307 this.deferredInit[name] = init;
309 let className = mod.className || mod.constructor.className;
311 init[className] = function callee() {
313 this.currentDependency = className;
314 defineModule.time(className, name, INIT[name], mod,
315 modules.dactyl, modules, window);
317 if (!callee.frobbed) {
318 callee.frobbed = true;
319 if (modules[name] instanceof Class)
320 modules[name].withSavedValues(["currentDependency"], finish);
326 INIT[name].require = function (name) { init[name](); };
329 scanModules: function scanModules() {
331 let { Module, modules } = this.modules;
333 Module.list.forEach(function frobModule(mod) {
335 modules.__defineGetter__(mod.className, function () {
336 delete modules[mod.className];
337 return self.loadModule(mod.className, null, Components.stack.caller);
339 Object.keys(mod.prototype.INIT)
340 .forEach(function (name) { self.deferInit(name, mod.prototype.INIT, mod); });
346 initDependencies: function initDependencies(name, parents) {
347 for (let [k, v] in Iterator(this.deferredInit[name] || {}))
348 if (!parents || ~parents.indexOf(k))
355 } catch(e){ if (!e.stack) e = Error(e); dump(e.fileName+":"+e.lineNumber+": "+e+"\n" + e.stack); }
357 // vim: set fdm=marker sw=4 ts=4 et ft=javascript: