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|
/*
* e-shell-settings.c
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
/**
* SECTION: e-shell-settings
* @short_description: settings management
* @include: shell/e-shell-settings.h
**/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "e-shell-settings.h"
#include "e-util/gconf-bridge.h"
struct _EShellSettingsPrivate {
GArray *value_array;
guint debug : 1;
};
static GList *instances;
static guint property_count;
static gpointer parent_class;
static GParamSpec *
shell_settings_pspec_for_key (const gchar *property_name,
const gchar *gconf_key)
{
GConfClient *client;
GConfEntry *entry;
GConfSchema *schema;
GConfValue *default_value;
GConfValueType value_type;
GParamSpec *pspec;
const gchar *bad_type;
const gchar *schema_name;
GError *error = NULL;
client = gconf_client_get_default ();
entry = gconf_client_get_entry (client, gconf_key, NULL, TRUE, &error);
if (error != NULL) {
g_warning ("%s", error->message);
g_error_free (error);
return NULL;
}
schema_name = gconf_entry_get_schema_name (entry);
g_return_val_if_fail (schema_name != NULL, NULL);
schema = gconf_client_get_schema (client, schema_name, &error);
if (error != NULL) {
g_warning ("%s", error->message);
gconf_entry_unref (entry);
g_error_free (error);
return NULL;
}
value_type = gconf_schema_get_type (schema);
default_value = gconf_schema_get_default_value (schema);
/* If the schema does not specify a default value, make one up. */
if (default_value == NULL) {
default_value = gconf_value_new (value_type);
/* XXX This should NOT be necessary, but the GConfValue
* documentation claims it is. Bother. */
switch (value_type) {
case GCONF_VALUE_STRING:
gconf_value_set_string (default_value, "");
break;
case GCONF_VALUE_INT:
gconf_value_set_int (default_value, 0);
break;
case GCONF_VALUE_FLOAT:
gconf_value_set_float (default_value, 0.0);
break;
case GCONF_VALUE_BOOL:
gconf_value_set_bool (default_value, FALSE);
break;
default:
/* We'll fail in the next switch statement. */
break;
}
} else {
default_value = gconf_value_copy (default_value);
}
switch (value_type) {
case GCONF_VALUE_STRING:
pspec = g_param_spec_string (
property_name, NULL, NULL,
gconf_value_get_string (default_value),
G_PARAM_READWRITE);
break;
case GCONF_VALUE_INT:
pspec = g_param_spec_int (
property_name, NULL, NULL,
G_MININT, G_MAXINT,
gconf_value_get_int (default_value),
G_PARAM_READWRITE);
break;
case GCONF_VALUE_FLOAT:
pspec = g_param_spec_double (
property_name, NULL, NULL,
-G_MAXDOUBLE, G_MAXDOUBLE,
gconf_value_get_float (default_value),
G_PARAM_READWRITE);
break;
case GCONF_VALUE_BOOL:
pspec = g_param_spec_boolean (
property_name, NULL, NULL,
gconf_value_get_bool (default_value),
G_PARAM_READWRITE);
break;
case GCONF_VALUE_SCHEMA:
bad_type = "schema";
goto fail;
case GCONF_VALUE_LIST:
bad_type = "list";
goto fail;
case GCONF_VALUE_PAIR:
bad_type = "pair";
goto fail;
default:
bad_type = "invalid";
goto fail;
}
gconf_value_free (default_value);
gconf_schema_free (schema);
gconf_entry_unref (entry);
return pspec;
fail:
g_error (
"Unable to create EShellSettings property for "
"GConf key '%s' of type '%s'", gconf_key, bad_type);
g_assert_not_reached ();
}
static void
shell_settings_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
EShellSettingsPrivate *priv;
GValue *dest_value;
priv = E_SHELL_SETTINGS (object)->priv;
dest_value = &g_array_index (
priv->value_array, GValue, property_id - 1);
g_value_copy (value, dest_value);
g_object_notify (object, pspec->name);
if (priv->debug) {
gchar *contents;
contents = g_strdup_value_contents (value);
g_debug (
"Setting '%s' set to '%s' (%s)",
pspec->name, contents, G_VALUE_TYPE_NAME (value));
g_free (contents);
}
}
static void
shell_settings_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
EShellSettingsPrivate *priv;
GValue *src_value;
priv = E_SHELL_SETTINGS (object)->priv;
src_value = &g_array_index (
priv->value_array, GValue, property_id - 1);
g_value_copy (src_value, value);
}
static void
shell_settings_finalize (GObject *object)
{
EShellSettingsPrivate *priv;
guint ii;
priv = E_SHELL_SETTINGS (object)->priv;
for (ii = 0; ii < priv->value_array->len; ii++)
g_value_unset (&g_array_index (priv->value_array, GValue, ii));
g_array_free (priv->value_array, TRUE);
/* Chain up to parent's finalize() method. */
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
shell_settings_class_init (EShellSettingsClass *class)
{
GObjectClass *object_class;
parent_class = g_type_class_peek_parent (class);
g_type_class_add_private (class, sizeof (EShellSettingsPrivate));
object_class = G_OBJECT_CLASS (class);
object_class->set_property = shell_settings_set_property;
object_class->get_property = shell_settings_get_property;
object_class->finalize = shell_settings_finalize;
}
static void
shell_settings_init (EShellSettings *shell_settings,
GObjectClass *object_class)
{
GArray *value_array;
GParamSpec **pspecs;
guint ii;
instances = g_list_prepend (instances, shell_settings);
value_array = g_array_new (FALSE, TRUE, sizeof (GValue));
g_array_set_size (value_array, property_count);
shell_settings->priv = G_TYPE_INSTANCE_GET_PRIVATE (
shell_settings, E_TYPE_SHELL_SETTINGS, EShellSettingsPrivate);
shell_settings->priv->value_array = value_array;
g_object_freeze_notify (G_OBJECT (shell_settings));
pspecs = g_object_class_list_properties (object_class, NULL);
for (ii = 0; ii < property_count; ii++) {
GParamSpec *pspec = pspecs[ii];
GValue *value;
value = &g_array_index (value_array, GValue, ii);
g_value_init (value, G_PARAM_SPEC_VALUE_TYPE (pspec));
g_param_value_set_default (pspec, value);
g_object_notify (G_OBJECT (shell_settings), pspec->name);
/* FIXME Need to bind those properties that have
* associated GConf keys. */
}
g_free (pspecs);
g_object_thaw_notify (G_OBJECT (shell_settings));
}
GType
e_shell_settings_get_type (void)
{
static GType type = 0;
if (G_UNLIKELY (type == 0)) {
const GTypeInfo type_info = {
sizeof (EShellSettingsClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) shell_settings_class_init,
(GClassFinalizeFunc) NULL,
NULL, /* class_data */
sizeof (EShellSettings),
0, /* n_preallocs */
(GInstanceInitFunc) shell_settings_init,
NULL /* value_table */
};
type = g_type_register_static (
G_TYPE_OBJECT, "EShellSettings", &type_info, 0);
}
return type;
}
/**
* e_shell_settings_install_property:
* @pspec: a #GParamSpec
*
* Installs a new #EShellSettings class property from @pspec.
* This is usually done during initialization of an #EShellBackend
* or other dynamically loaded entity.
**/
void
e_shell_settings_install_property (GParamSpec *pspec)
{
static GObjectClass *class = NULL;
GList *iter, *next;
g_return_if_fail (G_IS_PARAM_SPEC (pspec));
if (G_UNLIKELY (class == NULL))
class = g_type_class_ref (E_TYPE_SHELL_SETTINGS);
if (g_object_class_find_property (class, pspec->name) != NULL) {
g_warning (
"Settings property \"%s\" already exists",
pspec->name);
return;
}
for (iter = instances; iter != NULL; iter = iter->next)
g_object_freeze_notify (iter->data);
g_object_class_install_property (class, ++property_count, pspec);
for (iter = instances; iter != NULL; iter = iter->next) {
EShellSettings *shell_settings;
GArray *value_array;
GValue *value;
shell_settings = E_SHELL_SETTINGS (iter->data);
value_array = shell_settings->priv->value_array;
g_array_set_size (value_array, property_count);
value = &g_array_index (
value_array, GValue, property_count - 1);
g_value_init (value, G_PARAM_SPEC_VALUE_TYPE (pspec));
g_param_value_set_default (pspec, value);
g_object_notify (G_OBJECT (shell_settings), pspec->name);
}
for (iter = instances; iter != NULL; iter = next) {
next = iter->next;
g_object_thaw_notify (iter->data);
}
}
/**
* e_shell_settings_install_property_for_key:
* @property_name: the name of the property to install
* @gconf_key: the GConf key to bind the property to
*
* Installs a new #EShellSettings class property by examining the
* GConf schema for @gconf_key to determine the appropriate type and
* default value. This is usually done during initialization of an
* #EShellBackend of other dynamically loaded entity.
*
* After the class property is installed, all #EShellSettings instances
* are bound to @gconf_key, causing @property_name and @gconf_key to have
* the same value at all times.
**/
void
e_shell_settings_install_property_for_key (const gchar *property_name,
const gchar *gconf_key)
{
GParamSpec *pspec;
GList *iter, *next;
g_return_if_fail (property_name != NULL);
g_return_if_fail (gconf_key != NULL);
pspec = shell_settings_pspec_for_key (property_name, gconf_key);
if (!pspec)
return;
e_shell_settings_install_property (pspec);
for (iter = instances; iter != NULL; iter = iter->next)
g_object_freeze_notify (iter->data);
for (iter = instances; iter != NULL; iter = iter->next) {
EShellSettings *shell_settings;
shell_settings = E_SHELL_SETTINGS (iter->data);
gconf_bridge_bind_property (
gconf_bridge_get (), gconf_key,
G_OBJECT (shell_settings), property_name);
}
for (iter = instances; iter != NULL; iter = next) {
next = iter->next;
g_object_thaw_notify (iter->data);
}
}
/**
* e_shell_settings_enable_debug:
* @shell_settings: an #EShellSettings
*
* Print a debug message to standard output when a property value changes.
**/
void
e_shell_settings_enable_debug (EShellSettings *shell_settings)
{
g_return_if_fail (E_IS_SHELL_SETTINGS (shell_settings));
shell_settings->priv->debug = TRUE;
}
/**
* e_shell_settings_get_boolean:
* @shell_settings: an #EShellSettings
* @property_name: an installed property name
*
* Return the contents of an #EShellSettings property of type
* #G_TYPE_BOOLEAN.
*
* Returns: boolean contents of @property_name
**/
gboolean
e_shell_settings_get_boolean (EShellSettings *shell_settings,
const gchar *property_name)
{
GObject *object;
GValue value = { 0, };
gboolean v_boolean;
g_return_val_if_fail (E_IS_SHELL_SETTINGS (shell_settings), FALSE);
g_return_val_if_fail (property_name != NULL, FALSE);
object = G_OBJECT (shell_settings);
g_value_init (&value, G_TYPE_BOOLEAN);
g_object_get_property (object, property_name, &value);
v_boolean = g_value_get_boolean (&value);
g_value_unset (&value);
return v_boolean;
}
/**
* e_shell_settings_set_boolean:
* @shell_settings: an #EShellSettings
* @property_name: an installed property name
* @v_boolean: boolean value to be set
*
* Sets the contents of an #EShellSettings property of type #G_TYPE_BOOLEAN
* to @v_boolean. If @property_name is bound to a GConf key, the GConf key
* will also be set to @v_boolean.
**/
void
e_shell_settings_set_boolean (EShellSettings *shell_settings,
const gchar *property_name,
gboolean v_boolean)
{
GObject *object;
GValue value = { 0, };
g_return_if_fail (E_IS_SHELL_SETTINGS (shell_settings));
g_return_if_fail (property_name != NULL);
object = G_OBJECT (shell_settings);
g_value_init (&value, G_TYPE_BOOLEAN);
g_value_set_boolean (&value, v_boolean);
g_object_set_property (object, property_name, &value);
g_value_unset (&value);
}
/**
* e_shell_settings_get_int:
* @shell_settings: an #EShellSettings
* @property_name: an installed property name
*
* Returns the contents of an #EShellSettings property of type
* #G_TYPE_INT.
*
* Returns: integer contents of @property_name
**/
gint
e_shell_settings_get_int (EShellSettings *shell_settings,
const gchar *property_name)
{
GObject *object;
GValue value = { 0, };
gint v_int;
g_return_val_if_fail (E_IS_SHELL_SETTINGS (shell_settings), 0);
g_return_val_if_fail (property_name != NULL, 0);
object = G_OBJECT (shell_settings);
g_value_init (&value, G_TYPE_INT);
g_object_get_property (object, property_name, &value);
v_int = g_value_get_int (&value);
g_value_unset (&value);
return v_int;
}
/**
* e_shell_settings_set_int:
* @shell_settings: an #EShellSettings
* @property_name: an installed property name
* @v_int: integer value to be set
*
* Sets the contents of an #EShellSettings property of type #G_TYPE_INT
* to @v_int. If @property_name is bound to a GConf key, the GConf key
* will also be set to @v_int.
**/
void
e_shell_settings_set_int (EShellSettings *shell_settings,
const gchar *property_name,
gint v_int)
{
GObject *object;
GValue value = { 0, };
g_return_if_fail (E_IS_SHELL_SETTINGS (shell_settings));
g_return_if_fail (property_name != NULL);
object = G_OBJECT (shell_settings);
g_value_init (&value, G_TYPE_INT);
g_value_set_int (&value, v_int);
g_object_set_property (object, property_name, &value);
g_value_unset (&value);
}
/**
* e_shell_settings_get_string:
* @shell_settings: an #EShellSettings
* @property_name: an installed property name
*
* Returns the contents of an #EShellSettings property of type
* #G_TYPE_STRING. The returned string should be freed using g_free().
*
* Returns: string contents of @property_name
**/
gchar *
e_shell_settings_get_string (EShellSettings *shell_settings,
const gchar *property_name)
{
GObject *object;
GValue value = { 0, };
gchar *v_string;
g_return_val_if_fail (E_IS_SHELL_SETTINGS (shell_settings), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
object = G_OBJECT (shell_settings);
g_value_init (&value, G_TYPE_STRING);
g_object_get_property (object, property_name, &value);
v_string = g_value_dup_string (&value);
g_value_unset (&value);
return v_string;
}
/**
* e_shell_settings_set_string:
* @shell_settings: an #EShellSettings
* @property_name: an installed property name
* @v_string: string to be set
*
* Sets the contents of an #EShellSettings property of type #G_TYPE_STRING
* to @v_string. If @property_name is bound to a GConf key, the GConf key
* will also be set to @v_string.
**/
void
e_shell_settings_set_string (EShellSettings *shell_settings,
const gchar *property_name,
const gchar *v_string)
{
GObject *object;
GValue value = { 0, };
g_return_if_fail (E_IS_SHELL_SETTINGS (shell_settings));
g_return_if_fail (property_name != NULL);
object = G_OBJECT (shell_settings);
g_value_init (&value, G_TYPE_STRING);
g_value_set_string (&value, v_string);
g_object_set_property (object, property_name, &value);
g_value_unset (&value);
}
/**
* e_shell_settings_get_object:
* @shell_settings: an #EShellSettings
* @property_name: an installed property name
*
* Returns the contents of an #EShellSettings property of type
* #G_TYPE_OBJECT. The caller owns the reference to the returned
* object, and should call g_object_unref() when finished with it.
*
* Returns: a new reference to the object under @property_name
**/
gpointer
e_shell_settings_get_object (EShellSettings *shell_settings,
const gchar *property_name)
{
GObject *object;
GValue value = { 0, };
gpointer v_object;
g_return_val_if_fail (E_IS_SHELL_SETTINGS (shell_settings), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
object = G_OBJECT (shell_settings);
g_value_init (&value, G_TYPE_OBJECT);
g_object_get_property (object, property_name, &value);
v_object = g_value_dup_object (&value);
g_value_unset (&value);
return v_object;
}
/**
* e_shell_settings_set_object:
* @shell_settings: an #EShellSettings
* @property_name: an installed property name
* @v_object: object to be set
*
* Sets the contents of an #EShellSettings property of type #G_TYPE_OBJECT
* to @v_object.
**/
void
e_shell_settings_set_object (EShellSettings *shell_settings,
const gchar *property_name,
gpointer v_object)
{
GObject *object;
GValue value = { 0, };
g_return_if_fail (E_IS_SHELL_SETTINGS (shell_settings));
g_return_if_fail (property_name != NULL);
object = G_OBJECT (shell_settings);
g_value_init (&value, G_TYPE_OBJECT);
g_value_set_object (&value, v_object);
g_object_set_property (object, property_name, &value);
g_value_unset (&value);
}
/**
* e_shell_settings_get_pointer:
* @shell_settings: an #EShellSettings
* @property_name: an installed property name
*
* Returns the contents of an #EShellSettings property of type
* #G_TYPE_POINTER.
*
* Returns: pointer contents of @property_name
**/
gpointer
e_shell_settings_get_pointer (EShellSettings *shell_settings,
const gchar *property_name)
{
GObject *object;
GValue value = { 0, };
gpointer v_pointer;
g_return_val_if_fail (E_IS_SHELL_SETTINGS (shell_settings), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
object = G_OBJECT (shell_settings);
g_value_init (&value, G_TYPE_POINTER);
g_object_get_property (object, property_name, &value);
v_pointer = g_value_get_pointer (&value);
g_value_unset (&value);
return v_pointer;
}
/**
* e_shell_settings_set_pointer:
* @shell_settings: an #EShellSettings
* @property_name: an installed property name
* @v_pointer: pointer to be set
*
* Sets the contents of an #EShellSettings property of type #G_TYPE_POINTER
* to @v_pointer.
**/
void
e_shell_settings_set_pointer (EShellSettings *shell_settings,
const gchar *property_name,
gpointer v_pointer)
{
GObject *object;
GValue value = { 0, };
g_return_if_fail (E_IS_SHELL_SETTINGS (shell_settings));
g_return_if_fail (property_name != NULL);
object = G_OBJECT (shell_settings);
g_value_init (&value, G_TYPE_POINTER);
g_value_set_pointer (&value, v_pointer);
g_object_set_property (object, property_name, &value);
g_value_unset (&value);
}
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