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/* 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
"use strict";
/**
* This indexedDB helper is a simplified version of sdk/indexed-db. It creates a DB with
* a principal dedicated to DevTools.
*/
const principaluri = Services.io.newURI(PSEUDOURI);
const principal = Services.scriptSecurityManager.createContentPrincipal(
principaluri,
{}
);
// indexedDB is only exposed to document globals.
// We are retrieving an instance from a Sandbox, which has to be loaded
// from the system principal in order to avoid having wrappers around
// all indexed DB objects.
const systemPrincipal = Services.scriptSecurityManager.getSystemPrincipal();
const sandbox = Cu.Sandbox(systemPrincipal, {
wantGlobalProperties: ["indexedDB"],
});
const { indexedDB } = sandbox;
module.exports = Object.freeze({
/**
* Only the standard version of indexedDB.open is supported.
*/
open(name, version) {
const options = {};
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);
},
cmp: indexedDB.cmp.bind(indexedDB),
});