<html>
<!--
Written by Dharma.
Test last run on 05/09/01.
-->
<head>
 <title> Testing nsIPrefBranch Interface </title>
 <script type="text/javascript">

 function getnsIPrefServiceObj()
 {
   try {
     netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");
     netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
     prefObj = Components.classes["@mozilla.org/preferences-service;1"].
	                getService(Components.interfaces.nsIPrefService);
   }
   catch(e) {
    alert("Exception: " + e);
   }
   return prefObj;
 }
 </script>
</head>

<body>
<script type="text/javascript">
  // First get the nsIPrefService object.
  var nsIPrefServiceObj = getnsIPrefServiceObj();
  try {
    netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
    // get the nsIPrefBranch object.
    // if you use getBranch() then the preference file that gets affected is prefs.js.
    var nsIPrefBranchObj = nsIPrefServiceObj.getBranch("app.update.");

    // verifying the attribute root.
    alert("root: " + nsIPrefBranchObj.root);

    // checking getPrefType method.
    alert("prefType: " + nsIPrefBranchObj.getPrefType("url"));

    // checking getBoolPref method.

    var boo = nsIPrefBranchObj.getBoolPref("enabled");
    alert("boo: " + boo);

    // checking setBoolPref method.

    nsIPrefBranchObj.setBoolPref("enabled", !boo);
    nsIPrefServiceObj.savePrefFile(null);

    // checking getCharPref method.
    var updateUrl = nsIPrefBranchObj.getCharPref("url");
    alert("charPref: " + updateUrl);

    // checking setCharPref method.

    nsIPrefBranchObj.setCharPref("url", "http://mozilla.org")
    nsIPrefServiceObj.savePrefFile(null);

    // checking getIntPref method.
    /*
    var result = nsIPrefBranchObj.getIntPref("editor.table.delete_key");
    alert(result);
    */

    // checking setIntPref method.
	/*
    nsIPrefBranchObj.setIntPref("editor.table.delete_key", 1)
    nsIPrefServiceObj.savePrefFile(null);
	*/

    // checking clearUserPref method.
    /*
    nsIPrefBranchObj.clearUserPref("url");
    nsIPrefServiceObj.savePrefFile(null);
    */

	// checking lockPref method.
	boo = nsIPrefBranchObj.prefIsLocked("url");
	alert ("prefIsLocked: " + boo);

	nsIPrefBranchObj.lockPref("url");
	nsIPrefServiceObj.savePrefFile(null);


	// checking prefIsLocked method.

	var boo = nsIPrefBranchObj.prefIsLocked("url");
	alert ("prefIsLocked: " + boo);

	/*
    nsIPrefBranchObj.setBoolPref("homepage_override.1", 0);
    nsIPrefServiceObj.savePrefFile(null);
	*/

	// checking unlockPref method.

	nsIPrefBranchObj.unlockPref("url");
	nsIPrefServiceObj.savePrefFile(null);
    alert("parefIsLocked: " + nsIPrefBranchObj.prefIsLocked("url"));


    // checking deleteBranch
    // Filed a bug related to this method. for details see the bug #80108.
    // after reading the bug tried by settting the root to "font" without a dot and
    // it deletes the branch.
    /*
    nsIPrefBranchObj.deleteBranch(null);
	nsIPrefServiceObj.savePrefFile(null);
    */

	// checking resetBranch
	/*
	nsIPrefBranchObj.resetBranch("size.fixed.x-western");
	nsIPrefServiceObj.savePrefFile(null);
	*/

    // checking getChildList method.

	var aCount = {value:0};
	var childArray = nsIPrefBranchObj.getChildList("", aCount);
	alert("aCount: " + aCount.value);
	//alert("Array length: " + childArray.length);
	alert("Array content: " + childArray.toString());

	/*
	var defaultName = nsIPrefBranchObj.getComplexValue("browser.search.defaultenginename" , Components.interfaces.nsIPrefLocalizedString).data;
    alert(defaultName);
	*/
    alert("End");
  }
  catch(e) {
      alert("Exception: " + e);
  }
</script>
</body>
</html>