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134 lines
3.9 KiB
JavaScript
134 lines
3.9 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* Dumping ground for simple services for which the isolation of a full global
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* is overkill. Be careful about namespace pollution, and be mindful about
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* importing lots of JSMs in global scope, since this file will almost certainly
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* be loaded from enough callsites that any such imports will always end up getting
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* eagerly loaded at startup.
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*/
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"use strict";
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const Cu = Components.utils;
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const Ci = Components.interfaces;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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function RemoteTagServiceService()
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{
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}
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RemoteTagServiceService.prototype = {
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classID: Components.ID("{dfd07380-6083-11e4-9803-0800200c9a66}"),
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIRemoteTagService, Ci.nsISupportsWeakReference]),
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/**
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* CPOWs can have user data attached to them. This data originates
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* in the local process from this function, getRemoteObjectTag. It's
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* sent along with the CPOW to the remote process, where it can be
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* fetched with Components.utils.getCrossProcessWrapperTag.
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*/
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getRemoteObjectTag: function(target) {
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if (target instanceof Ci.nsIDocShellTreeItem) {
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return "ContentDocShellTreeItem";
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}
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if (target instanceof Ci.nsIDOMDocument) {
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return "ContentDocument";
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}
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return "generic";
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}
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};
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function AddonPolicyService()
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{
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this.wrappedJSObject = this;
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this.mayLoadURICallbacks = new Map();
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}
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AddonPolicyService.prototype = {
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classID: Components.ID("{89560ed3-72e3-498d-a0e8-ffe50334d7c5}"),
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIAddonPolicyService]),
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/*
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* Invokes a callback (if any) associated with the addon to determine whether
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* unprivileged code running within the addon is allowed to perform loads from
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* the given URI.
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*
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* @see nsIAddonPolicyService.addonMayLoadURI
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*/
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addonMayLoadURI(aAddonId, aURI) {
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let cb = this.mayLoadURICallbacks[aAddonId];
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return cb ? cb(aURI) : false;
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},
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/*
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* Invokes a callback (if any) to determine if an extension URI should be
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* web-accessible.
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*
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* @see nsIAddonPolicyService.extensionURILoadableByAnyone
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*/
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extensionURILoadableByAnyone(aURI) {
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if (aURI.scheme != "moz-extension") {
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throw new TypeError("non-extension URI passed");
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}
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let cb = this.extensionURILoadCallback;
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return cb ? cb(aURI) : false;
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},
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/*
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* Maps an extension URI to an addon ID.
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*
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* @see nsIAddonPolicyService.extensionURIToAddonId
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*/
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extensionURIToAddonId(aURI) {
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if (aURI.scheme != "moz-extension") {
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throw new TypeError("non-extension URI passed");
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}
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let cb = this.extensionURIToAddonIdCallback;
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if (!cb) {
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throw new Error("no callback set to map extension URIs to addon Ids");
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}
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return cb(aURI);
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},
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/*
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* Sets the callbacks used in addonMayLoadURI above. Not accessible over
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* XPCOM - callers should use .wrappedJSObject on the service to call it
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* directly.
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*/
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setAddonLoadURICallback(aAddonId, aCallback) {
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this.mayLoadURICallbacks[aAddonId] = aCallback;
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},
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/*
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* Sets the callback used in extensionURILoadableByAnyone above. Not
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* accessible over XPCOM - callers should use .wrappedJSObject on the
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* service to call it directly.
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*/
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setExtensionURILoadCallback(aCallback) {
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var old = this.extensionURILoadCallback;
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this.extensionURILoadCallback = aCallback;
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return old;
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},
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/*
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* Sets the callback used in extensionURIToAddonId above. Not accessible over
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* XPCOM - callers should use .wrappedJSObject on the service to call it
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* directly.
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*/
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setExtensionURIToAddonIdCallback(aCallback) {
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var old = this.extensionURIToAddonIdCallback;
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this.extensionURIToAddonIdCallback = aCallback;
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return old;
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}
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};
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([RemoteTagServiceService, AddonPolicyService]);
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