зеркало из https://github.com/mozilla/gecko-dev.git
53 строки
1.7 KiB
JavaScript
53 строки
1.7 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";
|
|
|
|
/**
|
|
* This indexedDB helper is a simplified version of sdk/indexed-db. It creates a DB with
|
|
* a principal dedicated to DevTools.
|
|
*/
|
|
|
|
const { Cc, Ci } = require("chrome");
|
|
|
|
const PSEUDOURI = "indexeddb://fx-devtools";
|
|
const principaluri = Cc["@mozilla.org/network/io-service;1"]
|
|
.getService(Ci.nsIIOService).newURI(PSEUDOURI);
|
|
|
|
const ssm = Cc["@mozilla.org/scriptsecuritymanager;1"]
|
|
.getService(Ci.nsIScriptSecurityManager);
|
|
|
|
const principal = ssm.createCodebasePrincipal(principaluri, {});
|
|
|
|
/**
|
|
* Create the DevTools dedicated DB, by relying on the real indexedDB object passed as a
|
|
* parameter here.
|
|
*
|
|
* @param {IDBFactory} indexedDB
|
|
* Real indexedDB object.
|
|
* @return {Object} Wrapper object that implements IDBFactory methods, but for a devtools
|
|
* specific principal.
|
|
*/
|
|
exports.createDevToolsIndexedDB = function (indexedDB) {
|
|
return Object.freeze({
|
|
/**
|
|
* Only the standard version of indexedDB.open is supported.
|
|
*/
|
|
open(name, version) {
|
|
let options = { storage: "persistent" };
|
|
if (typeof version === "number") {
|
|
options.version = version;
|
|
}
|
|
return indexedDB.openForPrincipal(principal, name, options);
|
|
},
|
|
/**
|
|
* Only the standard version of indexedDB.deleteDatabase is supported.
|
|
*/
|
|
deleteDatabase(name) {
|
|
return indexedDB.deleteForPrincipal(principal, name, { storage: "persistent" });
|
|
},
|
|
cmp: indexedDB.cmp.bind(indexedDB),
|
|
});
|
|
};
|