1 files changed, 81 insertions, 0 deletions
diff --git a/devtools/server/actors/preference.js b/devtools/server/actors/preference.js
new file mode 100644
index 000000000..8d4140155
--- /dev/null
+++ b/devtools/server/actors/preference.js
@@ -0,0 +1,81 @@
+/* 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/. */
+
+const {Cc, Ci, Cu, CC} = require("chrome");
+const protocol = require("devtools/shared/protocol");
+const {Arg, method, RetVal} = protocol;
+const Services = require("Services");
+const {preferenceSpec} = require("devtools/shared/specs/preference");
+
+exports.register = function (handle) {
+  handle.addGlobalActor(PreferenceActor, "preferenceActor");
+};
+
+exports.unregister = function (handle) {
+};
+
+var PreferenceActor = exports.PreferenceActor = protocol.ActorClassWithSpec(preferenceSpec, {
+  typeName: "preference",
+
+  getBoolPref: function (name) {
+    return Services.prefs.getBoolPref(name);
+  },
+
+  getCharPref: function (name) {
+    return Services.prefs.getCharPref(name);
+  },
+
+  getIntPref: function (name) {
+    return Services.prefs.getIntPref(name);
+  },
+
+  getAllPrefs: function () {
+    let prefs = {};
+    Services.prefs.getChildList("").forEach(function (name, index) {
+      // append all key/value pairs into a huge json object.
+      try {
+        let value;
+        switch (Services.prefs.getPrefType(name)) {
+          case Ci.nsIPrefBranch.PREF_STRING:
+            value = Services.prefs.getCharPref(name);
+            break;
+          case Ci.nsIPrefBranch.PREF_INT:
+            value = Services.prefs.getIntPref(name);
+            break;
+          case Ci.nsIPrefBranch.PREF_BOOL:
+            value = Services.prefs.getBoolPref(name);
+            break;
+          default:
+        }
+        prefs[name] = {
+          value: value,
+          hasUserValue: Services.prefs.prefHasUserValue(name)
+        };
+      } catch (e) {
+        // pref exists but has no user or default value
+      }
+    });
+    return prefs;
+  },
+
+  setBoolPref: function (name, value) {
+    Services.prefs.setBoolPref(name, value);
+    Services.prefs.savePrefFile(null);
+  },
+
+  setCharPref: function (name, value) {
+    Services.prefs.setCharPref(name, value);
+    Services.prefs.savePrefFile(null);
+  },
+
+  setIntPref: function (name, value) {
+    Services.prefs.setIntPref(name, value);
+    Services.prefs.savePrefFile(null);
+  },
+
+  clearUserPref: function (name) {
+    Services.prefs.clearUserPref(name);
+    Services.prefs.savePrefFile(null);
+  },
+});