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More careful error handling of values returned by GConf. Fixes #326615.

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2006-01-20  Elijah Newren  <newren gmail com>

	More careful error handling of values returned by GConf.  Fixes
	#326615.

	* src/prefs.c (get_bool): new helper function, (meta_prefs_init):
	use get_bool to handle the case of a gconf key not existing,
	(update_cursor_size): sanity check for sane values
This commit is contained in:
Elijah Newren 2006-01-20 22:32:28 +00:00 committed by Elijah Newren
parent af14d9d2a1
commit a556a7334a
2 changed files with 60 additions and 37 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2006-01-20 Elijah Newren <newren gmail com>
More careful error handling of values returned by GConf. Fixes
#326615.
* src/prefs.c (get_bool): new helper function, (meta_prefs_init):
use get_bool to handle the case of a gconf key not existing,
(update_cursor_size): sanity check for sane values
2006-01-20 Elijah Newren <newren gmail com> 2006-01-20 Elijah Newren <newren gmail com>
Prevent rapidly repeated visual bells from hanging metacity. Prevent rapidly repeated visual bells from hanging metacity.

88
src/prefs.c
View File

@ -301,6 +301,29 @@ cleanup_error (GError **error)
*error = NULL; *error = NULL;
} }
} }
/* get_bool returns TRUE if *val is filled in, FALSE otherwise */
static gboolean
get_bool (const char *key, gboolean *val)
{
GError *err = NULL;
GConfValue *value;
gboolean filled_in = FALSE;
value = gconf_client_get (default_client, key, &err);
cleanup_error (&err);
if (value)
{
if (value->type == GCONF_VALUE_BOOL)
{
*val = gconf_value_get_bool (value);
filled_in = TRUE;
}
gconf_value_free (value);
}
return filled_in;
}
#endif /* HAVE_GCONF */ #endif /* HAVE_GCONF */
void void
@ -350,10 +373,8 @@ meta_prefs_init (void)
update_focus_mode (str_val); update_focus_mode (str_val);
g_free (str_val); g_free (str_val);
bool_val = gconf_client_get_bool (default_client, KEY_RAISE_ON_CLICK, if (get_bool (KEY_RAISE_ON_CLICK, &bool_val))
&err); update_raise_on_click (bool_val);
cleanup_error (&err);
update_raise_on_click (bool_val);
str_val = gconf_client_get_string (default_client, str_val = gconf_client_get_string (default_client,
KEY_ACTION_DOUBLE_CLICK_TITLEBAR, KEY_ACTION_DOUBLE_CLICK_TITLEBAR,
@ -362,11 +383,15 @@ meta_prefs_init (void)
update_action_double_click_titlebar (str_val); update_action_double_click_titlebar (str_val);
g_free (str_val); g_free (str_val);
bool_val = gconf_client_get_bool (default_client, KEY_AUTO_RAISE, if (get_bool (KEY_AUTO_RAISE, &bool_val))
&err); update_auto_raise (bool_val);
cleanup_error (&err);
update_auto_raise (bool_val);
/* FIXME: Since auto_raise_delay of 0 is valid and gconf_client_get_int
* silently returns that value when KEY_AUTO_RAISE_DELAY doesn't exist,
* we should be using gconf_client_get() instead if we cared about
* careful error checking of the key-doesn't-exist case. Since this
* setting is crap, though, I'm adding a FIXME instead of fixing it. ;-)
*/
int_val = gconf_client_get_int (default_client, KEY_AUTO_RAISE_DELAY, int_val = gconf_client_get_int (default_client, KEY_AUTO_RAISE_DELAY,
&err); &err);
cleanup_error (&err); cleanup_error (&err);
@ -384,10 +409,8 @@ meta_prefs_init (void)
* just lazy. But they keys ought to be set, anyhow. * just lazy. But they keys ought to be set, anyhow.
*/ */
bool_val = gconf_client_get_bool (default_client, KEY_USE_SYSTEM_FONT, if (get_bool (KEY_USE_SYSTEM_FONT, &bool_val))
&err); update_use_system_font (bool_val);
cleanup_error (&err);
update_use_system_font (bool_val);
str_val = gconf_client_get_string (default_client, KEY_TITLEBAR_FONT, str_val = gconf_client_get_string (default_client, KEY_TITLEBAR_FONT,
&err); &err);
@ -400,15 +423,11 @@ meta_prefs_init (void)
cleanup_error (&err); cleanup_error (&err);
update_num_workspaces (int_val); update_num_workspaces (int_val);
bool_val = gconf_client_get_bool (default_client, KEY_APPLICATION_BASED, if (get_bool (KEY_APPLICATION_BASED, &bool_val))
&err); update_application_based (bool_val);
cleanup_error (&err);
update_application_based (bool_val);
bool_val = gconf_client_get_bool (default_client, KEY_DISABLE_WORKAROUNDS, if (get_bool (KEY_DISABLE_WORKAROUNDS, &bool_val))
&err); update_disable_workarounds (bool_val);
cleanup_error (&err);
update_disable_workarounds (bool_val);
str_val = gconf_client_get_string (default_client, KEY_BUTTON_LAYOUT, str_val = gconf_client_get_string (default_client, KEY_BUTTON_LAYOUT,
&err); &err);
@ -416,13 +435,9 @@ meta_prefs_init (void)
update_button_layout (str_val); update_button_layout (str_val);
g_free (str_val); g_free (str_val);
bool_val = gconf_client_get_bool (default_client, KEY_VISUAL_BELL, if (get_bool (KEY_VISUAL_BELL, &bool_val) ||
&err); get_bool (KEY_AUDIBLE_BELL, &bool_val_2))
cleanup_error (&err); update_visual_bell (bool_val, bool_val_2);
bool_val_2 = gconf_client_get_bool (default_client, KEY_AUDIBLE_BELL,
&err);
cleanup_error (&err);
update_visual_bell (bool_val, bool_val_2);
str_val = gconf_client_get_string (default_client, KEY_VISUAL_BELL_TYPE, str_val = gconf_client_get_string (default_client, KEY_VISUAL_BELL_TYPE,
&err); &err);
@ -430,10 +445,8 @@ meta_prefs_init (void)
update_visual_bell_type (str_val); update_visual_bell_type (str_val);
g_free (str_val); g_free (str_val);
bool_val = gconf_client_get_bool (default_client, KEY_REDUCED_RESOURCES, if (get_bool (KEY_REDUCED_RESOURCES, &bool_val))
&err); update_reduced_resources (bool_val);
cleanup_error (&err);
update_reduced_resources (bool_val);
str_val = gconf_client_get_string (default_client, KEY_TERMINAL_COMMAND, str_val = gconf_client_get_string (default_client, KEY_TERMINAL_COMMAND,
&err); &err);
@ -441,11 +454,8 @@ meta_prefs_init (void)
update_terminal_command (str_val); update_terminal_command (str_val);
g_free (str_val); g_free (str_val);
bool_val = gconf_client_get_bool (default_client, KEY_GNOME_ACCESSIBILITY, if (get_bool (KEY_GNOME_ACCESSIBILITY, &bool_val))
&err); update_gnome_accessibility (bool_val);
cleanup_error (&err);
update_gnome_accessibility (bool_val);
str_val = gconf_client_get_string (default_client, KEY_CURSOR_THEME, str_val = gconf_client_get_string (default_client, KEY_CURSOR_THEME,
&err); &err);
@ -1109,7 +1119,11 @@ update_cursor_size (int value)
{ {
int old = cursor_size; int old = cursor_size;
cursor_size = value; if (value >= 1 && value <= 128)
cursor_size = value;
else
meta_warning (_("%d stored in GConf key %s is not a reasonable cursor_size; must be in the range 1..128\n"),
value, KEY_CURSOR_SIZE);
return old != value; return old != value;
} }