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| "use strict";
const webIDLConversions = require("webidl-conversions");
const CSSStyleDeclaration = require("cssstyle").CSSStyleDeclaration;
const notImplemented = require("./not-implemented");
const VirtualConsole = require("../virtual-console");
const define = require("../utils").define;
const EventTarget = require("../living/generated/EventTarget");
const namedPropertiesWindow = require("../living/named-properties-window");
const cssom = require("cssom");
const postMessage = require("../living/post-message");
const DOMException = require("../web-idl/DOMException");
const btoa = require("abab").btoa;
const atob = require("abab").atob;
const idlUtils = require("../living/generated/utils");
const createXMLHttpRequest = require("../living/xmlhttprequest");
const createFileReader = require("../living/generated/FileReader").createInterface;
const Document = require("../living/generated/Document");
const Navigator = require("../living/generated/Navigator");
const reportException = require("../living/helpers/runtime-script-errors");
// NB: the require() must be after assigning `module.exports` because this require() is circular
// TODO: this above note might not even be true anymore... figure out the cycle and document it, or clean up.
module.exports = Window;
const dom = require("../living");
const cssSelectorSplitRE = /((?:[^,"']|"[^"]*"|'[^']*')+)/;
const defaultStyleSheet = cssom.parse(require("./default-stylesheet"));
dom.Window = Window;
// NOTE: per https://heycam.github.io/webidl/#Global, all properties on the Window object must be own-properties.
// That is why we assign everything inside of the constructor, instead of using a shared prototype.
// You can verify this in e.g. Firefox or Internet Explorer, which do a good job with Web IDL compliance.
function Window(options) {
EventTarget.setup(this);
const window = this;
///// INTERFACES FROM THE DOM
// TODO: consider a mode of some sort where these are not shared between all DOM instances
// It'd be very memory-expensive in most cases, though.
for (const name in dom) {
Object.defineProperty(window, name, {
enumerable: false,
configurable: true,
writable: true,
value: dom[name]
});
}
this._core = dom;
///// PRIVATE DATA PROPERTIES
// vm initialization is defered until script processing is activated (in level1/core)
this._globalProxy = this;
this.__timers = Object.create(null);
// Set up the window as if it's a top level window.
// If it's not, then references will be corrected by frame/iframe code.
this._parent = this._top = this._globalProxy;
this._frameElement = null;
// List options explicitly to be clear which are passed through
this._document = Document.create([], {
core: dom,
options: {
parsingMode: options.parsingMode,
contentType: options.contentType,
encoding: options.encoding,
cookieJar: options.cookieJar,
parser: options.parser,
url: options.url,
lastModified: options.lastModified,
referrer: options.referrer,
cookie: options.cookie,
deferClose: options.deferClose,
resourceLoader: options.resourceLoader,
concurrentNodeIterators: options.concurrentNodeIterators,
pool: options.pool,
agent: options.agent,
agentClass: options.agentClass,
agentOptions: options.agentOptions,
strictSSL: options.strictSSL,
proxy: options.proxy,
defaultView: this._globalProxy,
global: this
}
});
// https://html.spec.whatwg.org/#session-history
this._sessionHistory = [{
document: idlUtils.implForWrapper(this._document),
url: idlUtils.implForWrapper(this._document)._URL,
stateObject: null
}];
this._currentSessionHistoryEntryIndex = 0;
// This implements window.frames.length, since window.frames returns a
// self reference to the window object. This value is incremented in the
// HTMLFrameElement init function (see: level2/html.js).
this._length = 0;
if (options.virtualConsole) {
if (options.virtualConsole instanceof VirtualConsole) {
this._virtualConsole = options.virtualConsole;
} else {
throw new TypeError(
"options.virtualConsole must be a VirtualConsole (from createVirtualConsole)");
}
} else {
this._virtualConsole = new VirtualConsole();
}
///// GETTERS
const navigator = Navigator.create([], { userAgent: options.userAgent });
define(this, {
get length() {
return window._length;
},
get window() {
return window._globalProxy;
},
get frameElement() {
return window._frameElement;
},
get frames() {
return window._globalProxy;
},
get self() {
return window._globalProxy;
},
get parent() {
return window._parent;
},
get top() {
return window._top;
},
get document() {
return window._document;
},
get location() {
return idlUtils.wrapperForImpl(idlUtils.implForWrapper(window._document)._location);
},
get history() {
return idlUtils.wrapperForImpl(idlUtils.implForWrapper(window._document)._history);
},
get navigator() {
return navigator;
}
});
namedPropertiesWindow.initializeWindow(this, dom.HTMLCollection);
///// METHODS for [ImplicitThis] hack
// See https://lists.w3.org/Archives/Public/public-script-coord/2015JanMar/0109.html
this.addEventListener = this.addEventListener.bind(this);
this.removeEventListener = this.removeEventListener.bind(this);
this.dispatchEvent = this.dispatchEvent.bind(this);
///// METHODS
let latestTimerId = 0;
this.setTimeout = function (fn, ms) {
const args = [];
for (let i = 2; i < arguments.length; ++i) {
args[i - 2] = arguments[i];
}
return startTimer(window, setTimeout, clearTimeout, ++latestTimerId, fn, ms, args);
};
this.setInterval = function (fn, ms) {
const args = [];
for (let i = 2; i < arguments.length; ++i) {
args[i - 2] = arguments[i];
}
return startTimer(window, setInterval, clearInterval, ++latestTimerId, fn, ms, args);
};
this.clearInterval = stopTimer.bind(this, window);
this.clearTimeout = stopTimer.bind(this, window);
this.__stopAllTimers = stopAllTimers.bind(this, window);
function Option(text, value, defaultSelected, selected) {
if (text === undefined) {
text = "";
}
text = webIDLConversions.DOMString(text);
if (value !== undefined) {
value = webIDLConversions.DOMString(value);
}
defaultSelected = webIDLConversions.boolean(defaultSelected);
selected = webIDLConversions.boolean(selected);
const option = window._document.createElement("option");
const impl = idlUtils.implForWrapper(option);
if (text !== "") {
impl.text = text;
}
if (value !== undefined) {
impl.setAttribute("value", value);
}
if (defaultSelected) {
impl.setAttribute("selected", "");
}
impl._selectedness = selected;
return option;
}
Object.defineProperty(Option, "prototype", {
value: this.HTMLOptionElement.prototype,
configurable: false,
enumerable: false,
writable: false
});
Object.defineProperty(window, "Option", {
value: Option,
configurable: true,
enumerable: false,
writable: true
});
function Image() {
const img = window._document.createElement("img");
const impl = idlUtils.implForWrapper(img);
if (arguments.length > 0) {
impl.setAttribute("width", String(arguments[0]));
}
if (arguments.length > 1) {
impl.setAttribute("height", String(arguments[1]));
}
return img;
}
Object.defineProperty(Image, "prototype", {
value: this.HTMLImageElement.prototype,
configurable: false,
enumerable: false,
writable: false
});
Object.defineProperty(window, "Image", {
value: Image,
configurable: true,
enumerable: false,
writable: true
});
function Audio(src) {
const audio = window._document.createElement("audio");
const impl = idlUtils.implForWrapper(audio);
impl.setAttribute("preload", "auto");
if (src !== undefined) {
impl.setAttribute("src", String(src));
}
return audio;
}
Object.defineProperty(Audio, "prototype", {
value: this.HTMLAudioElement.prototype,
configurable: false,
enumerable: false,
writable: false
});
Object.defineProperty(window, "Audio", {
value: Audio,
configurable: true,
enumerable: false,
writable: true
});
function wrapConsoleMethod(method) {
return function () {
const args = Array.prototype.slice.call(arguments);
window._virtualConsole.emit.apply(window._virtualConsole, [method].concat(args));
};
}
this.postMessage = postMessage;
this.atob = function (str) {
const result = atob(str);
if (result === null) {
throw new DOMException(DOMException.INVALID_CHARACTER_ERR,
"The string to be decoded contains invalid characters.");
}
return result;
};
this.btoa = function (str) {
const result = btoa(str);
if (result === null) {
throw new DOMException(DOMException.INVALID_CHARACTER_ERR,
"The string to be encoded contains invalid characters.");
}
return result;
};
this.FileReader = createFileReader({
window: this
}).interface;
this.XMLHttpRequest = createXMLHttpRequest(this);
// TODO: necessary for Blob and FileReader due to different-globals weirdness; investigate how to avoid this.
this.ArrayBuffer = ArrayBuffer;
this.Int8Array = Int8Array;
this.Uint8Array = Uint8Array;
this.Uint8ClampedArray = Uint8ClampedArray;
this.Int16Array = Int16Array;
this.Uint16Array = Uint16Array;
this.Int32Array = Int32Array;
this.Uint32Array = Uint32Array;
this.Float32Array = Float32Array;
this.Float64Array = Float64Array;
this.stop = function () {
const manager = idlUtils.implForWrapper(this._document)._requestManager;
if (manager) {
manager.close();
}
};
this.close = function () {
// Recursively close child frame windows, then ourselves.
const currentWindow = this;
(function windowCleaner(windowToClean) {
for (let i = 0; i < windowToClean.length; i++) {
windowCleaner(windowToClean[i]);
}
// We"re already in our own window.close().
if (windowToClean !== currentWindow) {
windowToClean.close();
}
}(this));
// Clear out all listeners. Any in-flight or upcoming events should not get delivered.
idlUtils.implForWrapper(this)._eventListeners = Object.create(null);
if (this._document) {
if (this._document.body) {
this._document.body.innerHTML = "";
}
if (this._document.close) {
// It's especially important to clear out the listeners here because document.close() causes a "load" event to
// fire.
idlUtils.implForWrapper(this._document)._eventListeners = Object.create(null);
this._document.close();
}
const doc = idlUtils.implForWrapper(this._document);
if (doc._requestManager) {
doc._requestManager.close();
}
delete this._document;
}
stopAllTimers(currentWindow);
};
this.getComputedStyle = function (node) {
const s = node.style;
const cs = new CSSStyleDeclaration();
const forEach = Array.prototype.forEach;
function setPropertiesFromRule(rule) {
if (!rule.selectorText) {
return;
}
const selectors = rule.selectorText.split(cssSelectorSplitRE);
let matched = false;
for (const selectorText of selectors) {
if (selectorText !== "" && selectorText !== "," && !matched && matchesDontThrow(node, selectorText)) {
matched = true;
forEach.call(rule.style, property => {
cs.setProperty(property, rule.style.getPropertyValue(property), rule.style.getPropertyPriority(property));
});
}
}
}
function readStylesFromStyleSheet(sheet) {
forEach.call(sheet.cssRules, rule => {
if (rule.media) {
if (Array.prototype.indexOf.call(rule.media, "screen") !== -1) {
forEach.call(rule.cssRules, setPropertiesFromRule);
}
} else {
setPropertiesFromRule(rule);
}
});
}
readStylesFromStyleSheet(defaultStyleSheet);
forEach.call(node.ownerDocument.styleSheets, readStylesFromStyleSheet);
forEach.call(s, property => {
cs.setProperty(property, s.getPropertyValue(property), s.getPropertyPriority(property));
});
return cs;
};
///// PUBLIC DATA PROPERTIES (TODO: should be getters)
this.console = {
assert: wrapConsoleMethod("assert"),
clear: wrapConsoleMethod("clear"),
count: wrapConsoleMethod("count"),
debug: wrapConsoleMethod("debug"),
error: wrapConsoleMethod("error"),
group: wrapConsoleMethod("group"),
groupCollapsed: wrapConsoleMethod("groupCollapsed"),
groupEnd: wrapConsoleMethod("groupEnd"),
info: wrapConsoleMethod("info"),
log: wrapConsoleMethod("log"),
table: wrapConsoleMethod("table"),
time: wrapConsoleMethod("time"),
timeEnd: wrapConsoleMethod("timeEnd"),
trace: wrapConsoleMethod("trace"),
warn: wrapConsoleMethod("warn")
};
function notImplementedMethod(name) {
return function () {
notImplemented(name, window);
};
}
define(this, {
name: "nodejs",
innerWidth: 1024,
innerHeight: 768,
outerWidth: 1024,
outerHeight: 768,
pageXOffset: 0,
pageYOffset: 0,
screenX: 0,
screenY: 0,
screenLeft: 0,
screenTop: 0,
scrollX: 0,
scrollY: 0,
scrollTop: 0,
scrollLeft: 0,
screen: {
width: 0,
height: 0
},
alert: notImplementedMethod("window.alert"),
blur: notImplementedMethod("window.blur"),
confirm: notImplementedMethod("window.confirm"),
createPopup: notImplementedMethod("window.createPopup"),
focus: notImplementedMethod("window.focus"),
moveBy: notImplementedMethod("window.moveBy"),
moveTo: notImplementedMethod("window.moveTo"),
open: notImplementedMethod("window.open"),
print: notImplementedMethod("window.print"),
prompt: notImplementedMethod("window.prompt"),
resizeBy: notImplementedMethod("window.resizeBy"),
resizeTo: notImplementedMethod("window.resizeTo"),
scroll: notImplementedMethod("window.scroll"),
scrollBy: notImplementedMethod("window.scrollBy"),
scrollTo: notImplementedMethod("window.scrollTo"),
toString: () => {
return "[object Window]";
}
});
///// INITIALIZATION
process.nextTick(() => {
if (!window.document) {
return; // window might've been closed already
}
if (window.document.readyState === "complete") {
const ev = window.document.createEvent("HTMLEvents");
ev.initEvent("load", false, false);
window.dispatchEvent(ev);
} else {
window.document.addEventListener("load", () => {
const ev = window.document.createEvent("HTMLEvents");
ev.initEvent("load", false, false);
window.dispatchEvent(ev);
});
}
});
}
Object.setPrototypeOf(Window, EventTarget.interface);
Object.setPrototypeOf(Window.prototype, EventTarget.interface.prototype);
function matchesDontThrow(el, selector) {
try {
return el.matches(selector);
} catch (e) {
return false;
}
}
function startTimer(window, startFn, stopFn, timerId, callback, ms, args) {
if (typeof callback !== "function") {
const code = String(callback);
callback = window._globalProxy.eval.bind(window, code + `\n//# sourceURL=${window.location.href}`);
}
const oldCallback = callback;
callback = () => {
try {
oldCallback.apply(window._globalProxy, args);
} catch (e) {
reportException(window, e, window.location.href);
}
};
const res = startFn(callback, ms);
window.__timers[timerId] = [res, stopFn];
return timerId;
}
function stopTimer(window, id) {
const timer = window.__timers[id];
if (timer) {
// Need to .call() with undefined to ensure the thisArg is not timer itself
timer[1].call(undefined, timer[0]);
delete window.__timers[id];
}
}
function stopAllTimers(window) {
Object.keys(window.__timers).forEach(key => {
const timer = window.__timers[key];
// Need to .call() with undefined to ensure the thisArg is not timer itself
timer[1].call(undefined, timer[0]);
});
window.__timers = Object.create(null);
}
|