Source code
Revision control
Copy as Markdown
Other Tools
/**
* Any copyright is dedicated to the Public Domain.
*/
// This file expectes the SpecialPowers to be available in the scope
// it is loaded into.
/* global SpecialPowers */
class RequestError extends Error {
constructor(resultCode, resultName) {
super(`Request failed (code: ${resultCode}, name: ${resultName})`);
this.name = "RequestError";
this.resultCode = resultCode;
this.resultName = resultName;
}
}
export async function setStoragePrefs(optionalPrefsToSet) {
const prefsToSet = [
// Not needed right now, but might be needed in future.
// ["dom.quotaManager.testing", true],
];
if (SpecialPowers.Services.appinfo.OS === "WINNT") {
prefsToSet.push(["dom.quotaManager.useDOSDevicePathSyntax", true]);
}
if (optionalPrefsToSet) {
prefsToSet.push(...optionalPrefsToSet);
}
await SpecialPowers.pushPrefEnv({ set: prefsToSet });
}
export async function getCachedUsageForOrigin(principal) {
const request = SpecialPowers.Services.qms.getCachedUsageForPrincipal(
principal,
function () {}
);
await new Promise(function (resolve) {
request.callback = SpecialPowers.wrapCallback(function () {
resolve();
});
});
if (request.resultCode != SpecialPowers.Cr.NS_OK) {
throw new RequestError(request.resultCode, request.resultName);
}
return request.result;
}
export async function clearStoragesForOrigin(principal) {
const request =
SpecialPowers.Services.qms.clearStoragesForPrincipal(principal);
await new Promise(function (resolve) {
request.callback = SpecialPowers.wrapCallback(function () {
resolve();
});
});
if (request.resultCode != SpecialPowers.Cr.NS_OK) {
throw new RequestError(request.resultCode, request.resultName);
}
return request.result;
}