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Re-factor how the BasePreferences.prefs-property is initialized

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Looking at this now, I cannot understand why we'd need to initialize `this.prefs` with all of the values from `this.defaults`.
Not only does this *indirectly* require one extra loop, via the `Object.assign`-call, but it also means that in GENERIC-builds changes to default-preference values might not be picked-up unless the the existing user-prefs are cleared (if the user had *manually* set prefs previously).
This commit is contained in:
Jonas Jenwald 2021-03-22 14:19:50 +01:00
parent d426ffdad9
commit 4b27f58625
1 changed files with 8 additions and 18 deletions
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26
web/preferences.js
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@ -35,25 +35,16 @@ class BasePreferences {
enumerable: true,
configurable: false,
});
this.prefs = Object.assign(Object.create(null), this.defaults);
this.prefs = Object.create(null);
this._initializedPromise = this._readFromStorage(this.defaults).then(
prefs => {
if (!prefs) {
return;
}
for (const name in prefs) {
const defaultValue = this.defaults[name],
prefValue = prefs[name];
// Ignore preferences not present in, or whose types don't match,
// the default values.
if (
defaultValue === undefined ||
typeof prefValue !== typeof defaultValue
) {
continue;
for (const name in this.defaults) {
const prefValue = prefs?.[name];
// Ignore preferences whose types don't match the default values.
if (typeof prefValue === typeof this.defaults[name]) {
this.prefs[name] = prefValue;
}
this.prefs[name] = prefValue;
}
}
);
@ -86,7 +77,7 @@ class BasePreferences {
*/
async reset() {
await this._initializedPromise;
this.prefs = Object.assign(Object.create(null), this.defaults);
this.prefs = Object.create(null);
return this._writeToStorage(this.defaults);
}
@ -114,8 +105,7 @@ class BasePreferences {
value = value.toString();
} else {
throw new Error(
`Set preference: "${value}" is a ${valueType}, ` +
`expected a ${defaultType}.`
`Set preference: "${value}" is a ${valueType}, expected a ${defaultType}.`
);
}
} else {