gecko-dev/dom/base/ObjectWrapper.jsm

53 lines
1.5 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict"
const Cu = Components.utils;
const Cc = Components.classes;
const Ci = Components.interfaces;
this.EXPORTED_SYMBOLS = ["ObjectWrapper"];
// Makes sure that we expose correctly chrome JS objects to content.
const TypedArrayThings = [
"Int8Array",
"Uint8Array",
"Uint8ClampedArray",
"Int16Array",
"Uint16Array",
"Int32Array",
"Uint32Array",
"Float32Array",
"Float64Array",
];
this.ObjectWrapper = {
getObjectKind: function objWrapper_getObjectKind(aObject) {
if (aObject === null || aObject === undefined) {
return "primitive";
} else if (Array.isArray(aObject)) {
return "array";
} else if (aObject instanceof Ci.nsIDOMFile) {
return "file";
} else if (aObject instanceof Ci.nsIDOMBlob) {
return "blob";
} else if (aObject instanceof Date) {
return "date";
} else if (TypedArrayThings.indexOf(aObject.constructor.name) !== -1) {
return aObject.constructor.name;
} else if (typeof aObject == "object") {
return "object";
} else {
return "primitive";
}
},
wrap: function objWrapper_wrap(aObject, aCtxt) {
dump("-*- ObjectWrapper is deprecated. Use Components.utils.cloneInto() instead.\n");
return Cu.cloneInto(aObject, aCtxt, { cloneFunctions: true });
}
}