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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=914405
Debugger.prototype.makeGlobalObjectReference should dereference WindowProxy
(outer window) objects.
-->
<head>
<meta charset="utf-8">
<title>Mozilla Bug 914405</title>
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">
</head>
<body>
<pre id="test">
<script>
"use strict";
const {addSandboxedDebuggerToGlobal} = ChromeUtils.importESModule("resource://gre/modules/jsdebugger.sys.mjs");
addSandboxedDebuggerToGlobal(globalThis);
window.onload = function() {
SimpleTest.waitForExplicitFinish();
// Load one of our iframes over http to force it in a different compartment
// from the current window and the other iframe.
const iframe = document.createElement("iframe");
const baseURL = "http://mochi.test:8888/chrome/devtools/server/tests/chrome/";
iframe.src = baseURL + "iframe1_makeGlobalObjectReference.html";
iframe.onload = iframeOnLoad;
document.body.appendChild(iframe);
function iframeOnLoad() {
const dbg = new Debugger();
// 'o' for 'outer window'
const g1o = iframe.contentWindow;
ok(!dbg.hasDebuggee(g1o), "iframe is not initially a debuggee");
// Like addDebuggee, makeGlobalObjectReference innerizes.
// 'i' stands for 'inner window'.
// 'DO' stands for 'Debugger.Object'.
const g1iDO = dbg.makeGlobalObjectReference(g1o);
ok(!dbg.hasDebuggee(g1o),
"makeGlobalObjectReference does not add g1 as debuggee, designated via outer");
ok(!dbg.hasDebuggee(g1iDO),
"makeGlobalObjectReference does not add g1 as debuggee, designated via D.O ");
// Wrapping an object automatically outerizes it, so dereferencing an
// inner object D.O gets you an outer object.
// ('===' does distinguish inner and outer objects.)
// (That's a capital '=', if you must know.)
ok(g1iDO.unsafeDereference() === g1o, "g1iDO has the right referent");
// However, Debugger.Objects do distinguish inner and outer windows.
const g1oDO = g1iDO.makeDebuggeeValue(g1o);
ok(g1iDO !== g1oDO, "makeDebuggeeValue doesn't innerize");
ok(g1iDO.unsafeDereference() === g1oDO.unsafeDereference(),
"unsafeDereference() outerizes," +
" so inner and outer window D.Os both dereference to outer");
ok(dbg.addDebuggee(g1o) === g1iDO, "addDebuggee returns the inner window's D.O");
ok(dbg.hasDebuggee(g1o), "addDebuggee adds the correct global");
ok(dbg.hasDebuggee(g1iDO),
"hasDebuggee can take a D.O referring to the inner window");
ok(dbg.hasDebuggee(g1oDO),
"hasDebuggee can take a D.O referring to the outer window");
const iframe2 = document.createElement("iframe");
iframe2.src = "iframe2_makeGlobalObjectReference.html";
iframe2.onload = iframe2OnLoad;
document.body.appendChild(iframe2);
function iframe2OnLoad() {
// makeGlobalObjectReference dereferences CCWs.
const g2o = iframe2.contentWindow;
g2o.g1o = g1o;
const g2iDO = dbg.addDebuggee(g2o);
const g2g1oDO = g2iDO.getOwnPropertyDescriptor("g1o").value;
ok(g2g1oDO !== g1oDO, "g2's cross-compartment wrapper for g1o gets its own D.O");
ok(g2g1oDO.unwrap() === g1oDO,
"unwrapping g2's cross-compartment wrapper for g1o gets the right D.O");
ok(dbg.makeGlobalObjectReference(g2g1oDO) === g1iDO,
"makeGlobalObjectReference unwraps cross-compartment wrappers, and innerizes");
SimpleTest.finish();
}
}
};
</script>
</pre>
</body>
</html>
|
