1 files changed, 108 insertions, 0 deletions
diff --git a/toolkit/content/nsUserSettings.js b/toolkit/content/nsUserSettings.js
new file mode 100644
index 000000000..e0c378caf
--- /dev/null
+++ b/toolkit/content/nsUserSettings.js
@@ -0,0 +1,108 @@
+/* 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/. */
+
+
+/**
+ * nsPreferences - a wrapper around nsIPrefService. Provides built in
+ *                 exception handling to make preferences access simpler.
+ **/
+var nsPreferences = {
+  get mPrefService()
+    {
+      return Components.classes["@mozilla.org/preferences-service;1"]
+                       .getService(Components.interfaces.nsIPrefBranch);
+    },
+
+  setBoolPref: function (aPrefName, aPrefValue)
+    {
+      try
+        {
+          this.mPrefService.setBoolPref(aPrefName, aPrefValue);
+        }
+      catch (e)
+        {
+        }
+    },
+
+  getBoolPref: function (aPrefName, aDefVal)
+    {
+      try
+        {
+          return this.mPrefService.getBoolPref(aPrefName);
+        }
+      catch (e)
+        {
+          return aDefVal != undefined ? aDefVal : null;
+        }
+      return null;        // quiet warnings
+    },
+
+  setUnicharPref: function (aPrefName, aPrefValue)
+    {
+      try
+        {
+          var str = Components.classes["@mozilla.org/supports-string;1"]
+                              .createInstance(Components.interfaces.nsISupportsString);
+          str.data = aPrefValue;
+          this.mPrefService.setComplexValue(aPrefName,
+                                            Components.interfaces.nsISupportsString, str);
+        }
+      catch (e)
+        {
+        }
+    },
+
+  copyUnicharPref: function (aPrefName, aDefVal)
+    {
+      try
+        {
+          return this.mPrefService.getComplexValue(aPrefName,
+                                                   Components.interfaces.nsISupportsString).data;
+        }
+      catch (e)
+        {
+          return aDefVal != undefined ? aDefVal : null;
+        }
+      return null;        // quiet warnings
+    },
+
+  setIntPref: function (aPrefName, aPrefValue)
+    {
+      try
+        {
+          this.mPrefService.setIntPref(aPrefName, aPrefValue);
+        }
+      catch (e)
+        {
+        }
+    },
+
+  getIntPref: function (aPrefName, aDefVal)
+    {
+      try
+        {
+          return this.mPrefService.getIntPref(aPrefName);
+        }
+      catch (e)
+        {
+          return aDefVal != undefined ? aDefVal : null;
+        }
+      return null;        // quiet warnings
+    },
+
+  getLocalizedUnicharPref: function (aPrefName, aDefVal)
+    {
+      try
+        {
+          return this.mPrefService.getComplexValue(aPrefName,
+                                                   Components.interfaces.nsIPrefLocalizedString).data;
+        }
+      catch (e)
+        {
+          return aDefVal != undefined ? aDefVal : null;
+        }
+      return null;        // quiet warnings
+    }
+};
+