mutter/src/prefs.c
Havoc Pennington d91715dc8f Throughout: move to meta_topic rather than meta_verbose so metacity.log
2002-02-07  Havoc Pennington  <hp@pobox.com>

        Throughout: move to meta_topic rather than meta_verbose so
	metacity.log can start being more useful

	* src/util.h (enum): add more debug topics

	* src/frames.c: clean up some cruft that caused warnings
2002-02-08 03:34:26 +00:00

617 lines
15 KiB
C

/* Metacity preferences */
/*
* Copyright (C) 2001 Havoc Pennington
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include <config.h>
#include "prefs.h"
#include "util.h"
#include <gconf/gconf-client.h>
#include <string.h>
/* If you add a key, it needs updating in init() and in the gconf
* notify listener and of course in the .schemas file
*/
#define KEY_FOCUS_MODE "/apps/metacity/general/focus_mode"
#define KEY_THEME "/apps/metacity/general/theme"
#define KEY_USE_DESKTOP_FONT "/apps/metacity/general/titlebar_uses_desktop_font"
#define KEY_TITLEBAR_FONT "/apps/metacity/general/titlebar_font"
#define KEY_TITLEBAR_FONT_SIZE "/apps/metacity/general/titlebar_font_size"
#define KEY_NUM_WORKSPACES "/apps/metacity/general/num_workspaces"
#define KEY_APPLICATION_BASED "/apps/metacity/general/application_based"
static GConfClient *default_client = NULL;
static GList *listeners = NULL;
static GList *changes = NULL;
static guint changed_idle;
static gboolean use_desktop_font = TRUE;
static PangoFontDescription *titlebar_font = NULL;
static int titlebar_font_size = 0;
static MetaFocusMode focus_mode = META_FOCUS_MODE_CLICK;
static char* current_theme = NULL;
static int num_workspaces = 4;
static gboolean application_based = FALSE;
static gboolean update_use_desktop_font (gboolean value);
static gboolean update_titlebar_font (const char *value);
static gboolean update_titlebar_font_size (int value);
static gboolean update_focus_mode (const char *value);
static gboolean update_theme (const char *value);
static gboolean update_num_workspaces (int value);
static gboolean update_application_based (gboolean value);
static void queue_changed (MetaPreference pref);
static void change_notify (GConfClient *client,
guint cnxn_id,
GConfEntry *entry,
gpointer user_data);
typedef struct
{
MetaPrefsChangedFunc func;
gpointer data;
} MetaPrefsListener;
void
meta_prefs_add_listener (MetaPrefsChangedFunc func,
gpointer data)
{
MetaPrefsListener *l;
l = g_new (MetaPrefsListener, 1);
l->func = func;
l->data = data;
listeners = g_list_prepend (listeners, l);
}
void
meta_prefs_remove_listener (MetaPrefsChangedFunc func,
gpointer data)
{
GList *tmp;
tmp = listeners;
while (tmp != NULL)
{
MetaPrefsListener *l = tmp->data;
if (l->func == func &&
l->data == data)
{
g_free (l);
listeners = g_list_delete_link (listeners, tmp);
return;
}
tmp = tmp->next;
}
meta_bug ("Did not find listener to remove\n");
}
static void
emit_changed (MetaPreference pref)
{
GList *tmp;
GList *copy;
meta_verbose ("Notifying listeners that pref %s changed\n",
meta_preference_to_string (pref));
copy = g_list_copy (listeners);
tmp = copy;
while (tmp != NULL)
{
MetaPrefsListener *l = tmp->data;
(* l->func) (pref, l->data);
tmp = tmp->next;
}
g_list_free (copy);
}
static gboolean
changed_idle_handler (gpointer data)
{
GList *tmp;
GList *copy;
changed_idle = 0;
copy = g_list_copy (changes); /* reentrancy paranoia */
g_list_free (changes);
changes = NULL;
tmp = copy;
while (tmp != NULL)
{
MetaPreference pref = GPOINTER_TO_INT (tmp->data);
emit_changed (pref);
tmp = tmp->next;
}
g_list_free (copy);
return FALSE;
}
static void
queue_changed (MetaPreference pref)
{
meta_verbose ("Queueing change of pref %s\n",
meta_preference_to_string (pref));
if (g_list_find (changes, GINT_TO_POINTER (pref)) == NULL)
changes = g_list_prepend (changes, GINT_TO_POINTER (pref));
else
meta_verbose ("Change of pref %s was already pending\n",
meta_preference_to_string (pref));
if (changed_idle == 0)
changed_idle = g_idle_add (changed_idle_handler, NULL);
}
static void
cleanup_error (GError **error)
{
if (*error)
{
meta_warning ("%s\n", (*error)->message);
g_error_free (*error);
*error = NULL;
}
}
void
meta_prefs_init (void)
{
GError *err = NULL;
char *str_val;
int int_val;
gboolean bool_val;
if (default_client != NULL)
return;
/* returns a reference which we hold forever */
default_client = gconf_client_get_default ();
gconf_client_add_dir (default_client, "/apps/metacity",
GCONF_CLIENT_PRELOAD_RECURSIVE,
&err);
cleanup_error (&err);
str_val = gconf_client_get_string (default_client, KEY_FOCUS_MODE,
&err);
cleanup_error (&err);
update_focus_mode (str_val);
g_free (str_val);
str_val = gconf_client_get_string (default_client, KEY_THEME,
&err);
cleanup_error (&err);
update_theme (str_val);
g_free (str_val);
/* If the keys aren't set in the database, we use essentially
* bogus values instead of any kind of default. This is
* just lazy. But they keys ought to be set, anyhow.
*/
bool_val = gconf_client_get_bool (default_client, KEY_USE_DESKTOP_FONT,
&err);
cleanup_error (&err);
update_use_desktop_font (bool_val);
int_val = gconf_client_get_int (default_client, KEY_TITLEBAR_FONT_SIZE,
&err);
cleanup_error (&err);
update_titlebar_font_size (int_val);
str_val = gconf_client_get_string (default_client, KEY_TITLEBAR_FONT,
&err);
cleanup_error (&err);
update_titlebar_font (str_val);
g_free (str_val);
int_val = gconf_client_get_int (default_client, KEY_NUM_WORKSPACES,
&err);
cleanup_error (&err);
update_num_workspaces (int_val);
bool_val = gconf_client_get_bool (default_client, KEY_APPLICATION_BASED,
&err);
cleanup_error (&err);
update_application_based (bool_val);
gconf_client_notify_add (default_client, "/apps/metacity",
change_notify,
NULL,
NULL,
&err);
cleanup_error (&err);
}
static void
change_notify (GConfClient *client,
guint cnxn_id,
GConfEntry *entry,
gpointer user_data)
{
const char *key;
GConfValue *value;
key = gconf_entry_get_key (entry);
value = gconf_entry_get_value (entry);
if (strcmp (key, KEY_FOCUS_MODE) == 0)
{
const char *str;
if (value && value->type != GCONF_VALUE_STRING)
{
meta_warning (_("GConf key \"%s\" is set to an invalid type\n"),
KEY_FOCUS_MODE);
goto out;
}
str = value ? gconf_value_get_string (value) : NULL;
if (update_focus_mode (str))
queue_changed (META_PREF_FOCUS_MODE);
}
if (strcmp (key, KEY_THEME) == 0)
{
const char *str;
if (value && value->type != GCONF_VALUE_STRING)
{
meta_warning (_("GConf key \"%s\" is set to an invalid type\n"),
KEY_THEME);
goto out;
}
str = value ? gconf_value_get_string (value) : NULL;
if (update_theme (str))
queue_changed (META_PREF_THEME);
}
else if (strcmp (key, KEY_TITLEBAR_FONT) == 0)
{
const char *str;
if (value && value->type != GCONF_VALUE_STRING)
{
meta_warning (_("GConf key \"%s\" is set to an invalid type\n"),
KEY_TITLEBAR_FONT);
goto out;
}
str = value ? gconf_value_get_string (value) : NULL;
if (update_titlebar_font (str))
queue_changed (META_PREF_TITLEBAR_FONT);
}
else if (strcmp (key, KEY_TITLEBAR_FONT_SIZE) == 0)
{
int d;
if (value && value->type != GCONF_VALUE_INT)
{
meta_warning (_("GConf key \"%s\" is set to an invalid type\n"),
KEY_TITLEBAR_FONT_SIZE);
goto out;
}
d = value ? gconf_value_get_int (value) : 0;
if (update_titlebar_font_size (d))
queue_changed (META_PREF_TITLEBAR_FONT_SIZE);
}
else if (strcmp (key, KEY_USE_DESKTOP_FONT) == 0)
{
gboolean b;
if (value && value->type != GCONF_VALUE_BOOL)
{
meta_warning (_("GConf key \"%s\" is set to an invalid type\n"),
KEY_USE_DESKTOP_FONT);
goto out;
}
b = value ? gconf_value_get_bool (value) : TRUE;
/* There's no external pref for this, it just affects whether
* get_titlebar_font returns NULL, so that's what we queue
* the change on
*/
if (update_use_desktop_font (b))
queue_changed (META_PREF_TITLEBAR_FONT);
}
else if (strcmp (key, KEY_NUM_WORKSPACES) == 0)
{
int d;
if (value && value->type != GCONF_VALUE_INT)
{
meta_warning (_("GConf key \"%s\" is set to an invalid type\n"),
KEY_NUM_WORKSPACES);
goto out;
}
d = value ? gconf_value_get_int (value) : num_workspaces;
if (update_num_workspaces (d))
queue_changed (META_PREF_NUM_WORKSPACES);
}
else if (strcmp (key, KEY_APPLICATION_BASED) == 0)
{
gboolean b;
if (value && value->type != GCONF_VALUE_BOOL)
{
meta_warning (_("GConf key \"%s\" is set to an invalid type\n"),
KEY_APPLICATION_BASED);
goto out;
}
b = value ? gconf_value_get_bool (value) : application_based;
if (update_application_based (b))
queue_changed (META_PREF_APPLICATION_BASED);
}
else
{
meta_verbose ("Key %s doesn't mean anything to Metacity\n",
key);
}
out:
/* nothing */
}
static gboolean
update_focus_mode (const char *value)
{
MetaFocusMode old_mode = focus_mode;
if (value != NULL)
{
if (g_ascii_strcasecmp (value, "click") == 0)
focus_mode = META_FOCUS_MODE_CLICK;
else if (g_ascii_strcasecmp (value, "sloppy") == 0)
focus_mode = META_FOCUS_MODE_SLOPPY;
else if (g_ascii_strcasecmp (value, "mouse") == 0)
focus_mode = META_FOCUS_MODE_MOUSE;
else
meta_warning (_("GConf key '%s' is set to an invalid value"),
KEY_FOCUS_MODE);
}
return (old_mode != focus_mode);
}
static gboolean
update_theme (const char *value)
{
char *old_theme;
gboolean changed;
old_theme = current_theme;
if (value != NULL && *value)
{
current_theme = g_strdup (value);
}
changed = TRUE;
if ((old_theme && current_theme &&
strcmp (old_theme, current_theme) == 0) ||
(old_theme == NULL && current_theme == NULL))
changed = FALSE;
if (old_theme != current_theme)
g_free (old_theme);
if (current_theme == NULL)
{
/* Fallback crackrock */
current_theme = g_strdup ("Atlanta");
changed = TRUE;
}
return changed;
}
MetaFocusMode
meta_prefs_get_focus_mode (void)
{
return focus_mode;
}
const char*
meta_prefs_get_theme (void)
{
return current_theme;
}
static gboolean
update_use_desktop_font (gboolean value)
{
gboolean old = use_desktop_font;
use_desktop_font = value;
return old != value;
}
static gboolean
update_titlebar_font (const char *value)
{
PangoFontDescription *new_desc;
new_desc = NULL;
if (value)
{
new_desc = pango_font_description_from_string (value);
if (new_desc == NULL)
meta_warning (_("Could not parse font description \"%s\" from GConf key %s\n"),
value, KEY_TITLEBAR_FONT);
}
if (new_desc && titlebar_font &&
pango_font_description_equal (new_desc, titlebar_font))
{
pango_font_description_free (new_desc);
return FALSE;
}
else
{
if (titlebar_font)
pango_font_description_free (titlebar_font);
titlebar_font = new_desc;
return TRUE;
}
}
const PangoFontDescription*
meta_prefs_get_titlebar_font (void)
{
if (use_desktop_font)
return NULL;
else
return titlebar_font;
}
static gboolean
update_titlebar_font_size (int value)
{
int old = titlebar_font_size;
if (value < 0)
{
meta_warning (_("%d stored in GConf key %s is not a valid font size\n"),
value, KEY_TITLEBAR_FONT_SIZE);
value = 0;
}
titlebar_font_size = value;
return old != titlebar_font_size;
}
int
meta_prefs_get_titlebar_font_size (void)
{
return titlebar_font_size;
}
#define MAX_REASONABLE_WORKSPACES 32
static gboolean
update_num_workspaces (int value)
{
int old = num_workspaces;
if (value < 1 || value > MAX_REASONABLE_WORKSPACES)
{
meta_warning (_("%d stored in GConf key %s is not a reasonable number of workspaces, current maximum is %d\n"),
value, KEY_NUM_WORKSPACES, MAX_REASONABLE_WORKSPACES);
if (value < 1)
value = 1;
else if (value > MAX_REASONABLE_WORKSPACES)
value = MAX_REASONABLE_WORKSPACES;
}
num_workspaces = value;
return old != num_workspaces;
}
int
meta_prefs_get_num_workspaces (void)
{
return num_workspaces;
}
static gboolean
update_application_based (gboolean value)
{
gboolean old = application_based;
application_based = value;
return old != application_based;
}
gboolean
meta_prefs_get_application_based (void)
{
return application_based;
}
const char*
meta_preference_to_string (MetaPreference pref)
{
switch (pref)
{
case META_PREF_FOCUS_MODE:
return "FOCUS_MODE";
break;
case META_PREF_THEME:
return "THEME";
break;
case META_PREF_TITLEBAR_FONT:
return "TITLEBAR_FONT";
break;
case META_PREF_TITLEBAR_FONT_SIZE:
return "TITLEBAR_FONT_SIZE";
break;
case META_PREF_NUM_WORKSPACES:
return "NUM_WORKSPACES";
break;
case META_PREF_APPLICATION_BASED:
return "APPLICATION_BASED";
break;
}
return "(unknown)";
}