Hi all,
Must admit I haven't tested the 'delete' code in my Preferential project
extensively (I'm mainly interested in adding and modifying values), but
the code I use is:
var prefService =
Components.classes["@mozilla.org/preferences-service;1"].getService(Components.interfaces.nsIPrefService);
var prefBranch = prefService.getBranch(null);
if (document.getElementById('deleteType').value == "reset") {
try {
prefBranch.clearUserPref(pref);
var msg = gBundle.getString("msgSuccessReset");
}
catch (e) {
var msg = gBundle.getString("msgErrorReset");
}
}
else {
try {
prefBranch.deleteBranch(pref);
var msg = gBundle.getString("msgSuccessDelete");
}
catch (e) {
var msg = gBundle.getString("msgErrorDelete");
}
}
// Reload source prefs window
reload(msg);
window.close();
Regards,
-- GuruJ.
David Murray wrote:
What happens if you take the trailing dot off the branch? ie.
prefs.resetBranch('extensions.termblaster'); ?
David Duong wrote:
Thanks, but that was just a typo ;p. I have 'nsIPrefBranch' which is
returning the NS_ERROR_NOT_IMPLEMENTED
I meant to write:
var prefs = Components.classes["@ mozilla.org/preferences-service;1
<http://mozilla.org/preferences-service;1>"].
getService(Components.interfaces.nsIPrefBranch);
prefs.resetBranch('extensions.termblaster.');
Is there a standard way to reset preferences?
On 2/9/06, *HJ* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
wrote:
David Duong wrote:
> Hi,
>
> I'm trying to reset my extension's preferences to default
values and
> came accross the function "resetBranch" of
"preferences-service". (
>
http://www.xulplanet.com/references/xpcomref/comps/c_preferencesservice1.html)
>
> So something like:
> var prefs =
Components.classes["@mozilla.org/preferences-service;1
<http://mozilla.org/preferences-service;1>
> <http://mozilla.org/preferences-service;1 >"].
> getService(Components.interfaces.nsIPrefService);
> prefs.resetBranch('extensions.myext.');
>
> Should work, but it only causes a not implemented error. What
is the
> best way to reset extension preferences?
Right, just replace 'nsIPrefService' with 'nsIPrefBranch' ;)
/HJ
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