Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/toolkit/components/utils/PreferenceFilters.sys.mjs b/toolkit/components/utils/PreferenceFilters.sys.mjs
new file mode 100644
index 0000000000..6691d848ef
--- /dev/null
+++ b/toolkit/components/utils/PreferenceFilters.sys.mjs
@@ -0,0 +1,23 @@
+/* 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/. */
+
+import { Preferences } from "resource://gre/modules/Preferences.sys.mjs";
+
+export var PreferenceFilters = {
+  // Compare the value of a given preference. Takes a `default` value as an
+  // optional argument to pass into `Preferences.get`.
+  preferenceValue(prefKey, defaultValue) {
+    return Preferences.get(prefKey, defaultValue);
+  },
+
+  // Compare if the preference is user set.
+  preferenceIsUserSet(prefKey) {
+    return Preferences.isSet(prefKey);
+  },
+
+  // Compare if the preference has _any_ value, whether it's user-set or default.
+  preferenceExists(prefKey) {
+    return Preferences.has(prefKey);
+  },
+};