2 files changed, 77 insertions, 0 deletions
diff --git a/browser/extensions/webcompat/experiment-apis/sharedPreferences.js b/browser/extensions/webcompat/experiment-apis/sharedPreferences.js
new file mode 100644
index 0000000000..b2a19b3a6c
--- /dev/null
+++ b/browser/extensions/webcompat/experiment-apis/sharedPreferences.js
@@ -0,0 +1,33 @@
+/* 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/. */
+
+"use strict";
+
+/* global ExtensionAPI, Services, XPCOMUtils */
+
+XPCOMUtils.defineLazyModuleGetters(this, {
+  Services: "resource://gre/modules/Services.jsm",
+  SharedPreferences: "resource://gre/modules/SharedPreferences.jsm",
+});
+
+this.sharedPreferences = class extends ExtensionAPI {
+  getAPI(context) {
+    return {
+      sharedPreferences: {
+        async setCharPref(name, value) {
+          if (!Services.androidBridge || !Services.androidBridge.isFennec) {
+            return;
+          }
+          SharedPreferences.forApp().setCharPref(name, value);
+        },
+        async setBoolPref(name, value) {
+          if (!Services.androidBridge || !Services.androidBridge.isFennec) {
+            return;
+          }
+          SharedPreferences.forApp().setBoolPref(name, value);
+        },
+      },
+    };
+  }
+};
diff --git a/browser/extensions/webcompat/experiment-apis/sharedPreferences.json b/browser/extensions/webcompat/experiment-apis/sharedPreferences.json
new file mode 100644
index 0000000000..cf73414cf4
--- /dev/null
+++ b/browser/extensions/webcompat/experiment-apis/sharedPreferences.json
@@ -0,0 +1,44 @@
+[
+  {
+    "namespace": "sharedPreferences",
+    "description": "experimental API extension to allow setting SharedPreferences on Fennec",
+    "functions": [
+      {
+        "name": "setBoolPref",
+        "type": "function",
+        "description": "Set the value of a boolean Fennec SharedPreference",
+        "parameters": [
+          {
+            "name": "name",
+            "type": "string",
+            "description": "The key name"
+          },
+          {
+            "name": "value",
+            "type": "boolean",
+            "description": "The new value"
+          }
+        ],
+        "async": true
+      },
+      {
+        "name": "setCharPref",
+        "type": "function",
+        "description": "Set the value of a string Fennec SharedPreference",
+        "parameters": [
+          {
+            "name": "name",
+            "type": "string",
+            "description": "The key name"
+          },
+          {
+            "name": "value",
+            "type": "string",
+            "description": "The new value"
+          }
+        ],
+        "async": true
+      }
+    ]
+  }
+]