Gnome2::GConf::Client(3)

NAME
Gnome2::GConf::Client - client module for GConf

DESCRIPTION
Gnome2::GConf::Client is a commodity class based on "GObject" used to access the default "GConfEngine" provided by the GConf daemon. It has a cache, finer-grained notification of changes and a default error handling mechanism.

ERROR HANDLING
In C, each fallible function has a "GError" optional argument: by setting it to a valid "GError" structure, the function will fill it in case of error; by passing a NULL value, the function will silently fail.

In Perl, each fallible method has a boolean "check_error" argument; by setting this argument to "TRUE", the method will croak con failure, otherwise it will silently fail.

NOTE: To retain backward compatibility, the default behaviour is to check each error; that is, the "check_error" argument silently is set to TRUE.

In order to catch an error, you might use eval as a try...catch equivalent:

  eval { $s = $client->get_string($some_key); 1; };
  if (Glib::Error::matches($@, 'Gnome2::GConf::Error', 'bad-key'))
  {
    # recover from a bad-key error.
  }

On failure, if the error is unchecked, the "unreturned_error" signal will be fired by the Gnome2::GConf::Client object; the "error" signal will always be fired, whether the error is checked or not.

If you want to let the global error handler function catch just the unchecked error, use the "Gnome2::GConf::Client::set_error_handling" method, and attach a callback to the "unreturned_error" signal:

  $client->set_error_handling('handle-unreturned');
  $client->signal_connect(unreturned_error => sub {
      my ($client, $error) = @_;
      warn $error; # is a Glib::Error
    });

HIERARCHY
  Glib::Object
  +----Gnome2::GConf::Client

METHODS

  $client->add_dir ($dir, $preload, $check_error=TRUE)

•   $dir (string)

•   $preload (Gnome2::GConf::ClientPreloadType)

•   $check_error (boolean)

  list = $client->all_dirs($dir, $check_error=TRUE)

•   $dir (string)

•   $check_error (boolean)

This method returns an array containing all the directories in a given directory.

  list = $client->all_entries($dir, $check_error=TRUE)

•   $dir (string)

•   $check_error (boolean)

This method returns an array containing all the entries (as Gnome2::GConf::Entry) of a given directory.

  boolean = $client->get_bool ($key, $check_error=TRUE)

•   $key (string)

•   $check_error (boolean)

  boolean = $client->set_bool ($key, $val, $check_error=TRUE)

•   $key (string)

•   $val (boolean)

•   $check_error (boolean)

Returns FALSE on failure.

  changeset = $client->change_set_from_current ($check_error=TRUE, $key, ...)

•   $check_error (boolean)

•   ... (list) list of keys to add to the changeset

Create a Gnome2::GConf::ChangeSet from a list of keys inside the GConf database.

  $client->clear_cache

  boolean = $client->commit_change_set ($cs, $remove_committed, $check_error=TRUE)

  (boolean, changeset) = $client->commit_change_set ($cs, $remove_committed, $check_error=TRUE)

•   $cs (changeset)

•   $remove_committed (boolean)

•   $check_error (boolean)

Commit a given Gnome2::GConf::ChangeSet. In scalar context, or if $remove_committed is FALSE, return a boolean value; otherwise, return the boolean value and the Gnome2::GConf::ChangeSet $cs, pruned of the successfully committed changes.

  value = $client->get_default_from_schema ($key, $check_error=TRUE)

•   $key (string)

•   $check_error (boolean)

  client = Gnome2::GConf::Client->get_default

  boolean = $client->dir_exists ($dir, $check_error=TRUE)

•   $dir (string)

•   $check_error (boolean)

  entry = $client->get_entry ($key, $locale, $use_schema_default, $check_error=TRUE)

•   $key (string)

•   $locale (string)

•   $use_schema_default (boolean)

•   $check_error (boolean)

  list = $client->error ($error)

•   $error (scalar) a Glib::Error

You should not use this method. This method emits the "error" signal.

  $client->set_error_handling ($mode)

•   $mode (Gnome2::GConf::ClientErrorHandlingMode)

  double = $client->get_float ($key, $check_error=TRUE)

•   $key (string)

•   $check_error (boolean)

  boolean = $client->set_float ($key, $val, $check_error=TRUE)

•   $key (string)

•   $val (double)

•   $check_error (boolean)

Returns FALSE on failure.

  client = Gnome2::GConf::Client->get_for_engine ($engine)

•   $engine (engine)

  value = $client->get ($key, $check_error=TRUE)

•   $key (string)

•   $check_error (boolean)

Fetch the "GConfValue" bound to the give $key.

  $client->set ($key, $value, $check_error=TRUE)

•   $key (string)

•   $value (value)

•   $check_error (boolean)

Set the "GConfValue" $val bound to the given $key.

  integer = $client->get_int ($key, $check_error=TRUE)

•   $key (string)

•   $check_error (boolean)

  boolean = $client->set_int ($key, $val, $check_error=TRUE)

•   $key (string)

•   $val (integer)

•   $check_error (boolean)

Returns FALSE on failure.

  boolean = $client->key_is_writable ($key, $check_error=TRUE)

•   $key (string)

•   $check_error (boolean)

  $client->get_list ($key, $check_error=TRUE)

•   $key (string)

•   $check_error (boolean)

  boolean = $client->set_list ($key, $list_type, $list, $check_error=TRUE)

•   $key (string)

•   $list_type (string)

•   $list (scalar)

•   $check_error (boolean)

  integer = $client->notify_add ($namespace_section, $func, $data=undef, $check_error=TRUE)

•   $namespace_section (string)

•   $func (scalar)

•   $data (scalar)

•   $check_error (boolean)

  $client->notify_remove ($cnxn_id)

•   $cnxn_id (integer)

  $client->get_pair ($key, $check_error=TRUE)

•   $key (string)

•   $check_error (boolean)

  boolean = $client->set_pair ($key, $car, $cdr, $check_error=TRUE)

•   $key (string)

•   $car (value)

•   $cdr (value)

•   $check_error (boolean)

  $client->preload ($dirname, $type, $check_error=TRUE)

•   $dirname (string)

•   $type (Gnome2::GConf::ClientPreloadType)

•   $check_error (boolean)

  boolean = $client->recursive_unset ($key, $flags=0, $check_error=TRUE)

•   $key (string)

•   $flags (Gnome2::GConf::UnsetFlags)

•   $check_error (boolean)

Since: gconf 2.3

  $client->remove_dir ($dir, $check_error=TRUE)

•   $dir (string)

•   $check_error (boolean)

  changeset = $client->reverse_change_set ($cs, $check_error=TRUE)

•   $cs (changeset)

•   $check_error (boolean)

Reverse the given Gnome2::GConf::ChangeSet.

  schema = $client->get_schema ($key)

•   $key (string)

  boolean = $client->set_schema ($key, $schema, $check_error=TRUE)

•   $key (string)

•   $schema (schema)

•   $check_error (boolean)

  string = $client->get_string ($key, $check_error=TRUE)

•   $key (string)

•   $check_error (boolean)

  boolean = $client->set_string ($key, $val, $check_error=TRUE)

•   $key (string)

•   $val (string)

•   $check_error (boolean)

Returns FALSE on failure

  $client->suggest_sync ($check_error=TRUE)

•   $check_error (boolean)

  list = $client->unreturned_error ($error)

•   $error (scalar) a Glib::Error

You should not use this method. This method emits the "unreturned-error" signal.

  boolean = $client->unset ($key, $check_error=TRUE)

•   $key (string)

•   $check_error (boolean)

  list = $client->value_changed ($key, $value)

•   $key (string)

•   $value (value)

You should not use this method. This method emits the "value-changed" signal.

  value = $client->get_without_default ($key, $check_error=TRUE)

•   $key (string)

•   $check_error (boolean)

SIGNALS

error (Gnome2::GConf::Client, gpointer)
unreturned-error (Gnome2::GConf::Client, gpointer)
value-changed (Gnome2::GConf::Client, string, gpointer)

ENUMS AND FLAGS

  enum Gnome2::GConf::ClientErrorHandlingMode

•   'handle-none' / 'GCONF_CLIENT_HANDLE_NONE'

•   'handle-unreturned' / 'GCONF_CLIENT_HANDLE_UNRETURNED'

•   'handle-all' / 'GCONF_CLIENT_HANDLE_ALL'

  enum Gnome2::GConf::ClientPreloadType

•   'preload-none' / 'GCONF_CLIENT_PRELOAD_NONE'

•   'preload-onelevel' / 'GCONF_CLIENT_PRELOAD_ONELEVEL'

•   'preload-recursive' / 'GCONF_CLIENT_PRELOAD_RECURSIVE'

  flags Gnome2::GConf::UnsetFlags

•   'names' / 'GCONF_UNSET_INCLUDING_SCHEMA_NAMES'

SEE ALSO
Gnome2::GConf, Glib::Object

COPYRIGHT
Copyright (C) 2003-2006 by the gtk2-perl team.

This software is licensed under the LGPL. See Gnome2::GConf for a full notice.