void addObserver ( AString name , nsIContentPrefObserver observer )

Add an observer.

Arguments:

name: the setting to observe, or null to add a generic observer that observes all settings

observer: the observer to add

nsIVariant getPref ( nsIURI URI , AString name )

Get a pref.

Besides the regular string, integer, boolean, etc. values, this method may return null (nsIDataType::VTYPE_EMPTY), which means the pref is set to NULL in the database, as well as undefined (nsIDataType::VTYPE_VOID), which means there is no record for this pref in the database.

Arguments:

URI: the URI for which to get the pref, or null to get the global pref (applies to all URIs)

name: the name of the pref to get

nsIPropertyBag2 getPrefs ( nsIURI URI )

Get the prefs that apply to the given URI.

Arguments:

URI: the URI for which to retrieve prefs

PRBool hasPref ( nsIURI URI , AString name )

Check whether or not a pref exists.

Arguments:

URI: the URI for which to check for the pref

name: the name of the pref to check for

void removeObserver ( AString name , nsIContentPrefObserver observer )

Remove an observer.

Arguments:

name: the setting being observed, or null to remove a generic observer that observes all settings

observer: the observer to remove

void removePref ( nsIURI URI , AString name )

Remove a pref.

Arguments:

URI: the URI for which to remove the pref

name: the name of the pref to remove

void setPref ( nsIURI URI , AString name , nsIVariant value )

Set a pref.

Arguments:

URI: the URI for which to set the pref, or null to set the global pref (applies to all URIs)

name: the name of the pref to set

value: the new value of the pref