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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
function getPrefValue(branch, pref, type) {
switch (type) {
case Ci.nsIPrefBranch.PREF_STRING:
return branch.getStringPref(pref);
case Ci.nsIPrefBranch.PREF_INT:
return branch.getIntPref(pref);
case Ci.nsIPrefBranch.PREF_BOOL:
return branch.getBoolPref(pref);
default:
// Unreachable.
return undefined;
}
}
const Branches = Object.freeze({
USER: Services.prefs,
DEFAULT: Services.prefs.getDefaultBranch(null),
});
function getPrefValues(pref, type) {
const rv = {};
if (Services.prefs.prefHasUserValue(pref)) {
rv.user_branch_value = getPrefValue(Branches.USER, pref, type);
}
if (Services.prefs.prefHasDefaultValue(pref)) {
rv.default_branch_value = getPrefValue(Branches.DEFAULT, pref, type);
}
return rv;
}
const PREF_MAP = Object.freeze({
"nimbus.qa.pref-string-default": {
metric: "stringDefault",
type: Ci.nsIPrefBranch.PREF_STRING,
},
"nimbus.qa.pref-string-user": {
metric: "stringUser",
type: Ci.nsIPrefBranch.PREF_STRING,
},
"nimbus.qa.pref-int-default": {
metric: "intDefault",
type: Ci.nsIPrefBranch.PREF_INT,
},
"nimbus.qa.pref-int-user": {
metric: "intUser",
type: Ci.nsIPrefBranch.PREF_INT,
},
"nimbus.qa.pref-bool-default": {
metric: "boolDefault",
type: Ci.nsIPrefBranch.PREF_BOOL,
},
"nimbus.qa.pref-bool-user": {
metric: "boolUser",
type: Ci.nsIPrefBranch.PREF_BOOL,
},
});
export const NimbusGeckoViewQATelemetry = new (class {
constructor() {
this.observe = this.observe.bind(this);
}
init() {
for (const pref of Object.keys(PREF_MAP)) {
Services.prefs.addObserver(pref, this);
this.#recordPref(pref);
}
}
observe(_subject, topic, data) {
if (topic === "nsPref:changed" && Object.hasOwn(PREF_MAP, data)) {
this.#recordPref(data);
}
}
#recordPref(pref) {
const { metric, type } = PREF_MAP[pref];
try {
const value = getPrefValues(pref, type);
Glean.nimbusQaPrefs[metric].set(value);
} catch (e) {
Glean.nimbusQaPrefs.prefTypeErrors[pref].add();
}
}
})();