diff options
Diffstat (limited to 'src/core/group-props.c')
| -rw-r--r-- | src/core/group-props.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/src/core/group-props.c b/src/core/group-props.c new file mode 100644 index 00000000..05e82900 --- /dev/null +++ b/src/core/group-props.c @@ -0,0 +1,234 @@ +/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ + +/* MetaGroup property handling */ + +/* + * Copyright (C) 2002 Red Hat, Inc. + * + * 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 "group-props.h" +#include "group-private.h" +#include "xprops.h" +#include <X11/Xatom.h> + +typedef void (* InitValueFunc) (MetaDisplay *display, + Atom property, + MetaPropValue *value); +typedef void (* ReloadValueFunc) (MetaGroup *group, + MetaPropValue *value); + +struct _MetaGroupPropHooks +{ + Atom property; + InitValueFunc init_func; + ReloadValueFunc reload_func; +}; + +static void init_prop_value (MetaDisplay *display, + Atom property, + MetaPropValue *value); +static void reload_prop_value (MetaGroup *group, + MetaPropValue *value); +static MetaGroupPropHooks* find_hooks (MetaDisplay *display, + Atom property); + + + +void +meta_group_reload_property (MetaGroup *group, + Atom property) +{ + meta_group_reload_properties (group, &property, 1); +} + +void +meta_group_reload_properties (MetaGroup *group, + const Atom *properties, + int n_properties) +{ + int i; + MetaPropValue *values; + + g_return_if_fail (properties != NULL); + g_return_if_fail (n_properties > 0); + + values = g_new0 (MetaPropValue, n_properties); + + i = 0; + while (i < n_properties) + { + init_prop_value (group->display, properties[i], &values[i]); + ++i; + } + + meta_prop_get_values (group->display, group->group_leader, + values, n_properties); + + i = 0; + while (i < n_properties) + { + reload_prop_value (group, &values[i]); + + ++i; + } + + meta_prop_free_values (values, n_properties); + + g_free (values); +} + +/* Fill in the MetaPropValue used to get the value of "property" */ +static void +init_prop_value (MetaDisplay *display, + Atom property, + MetaPropValue *value) +{ + MetaGroupPropHooks *hooks; + + value->type = META_PROP_VALUE_INVALID; + value->atom = None; + + hooks = find_hooks (display, property); + if (hooks && hooks->init_func != NULL) + (* hooks->init_func) (display, property, value); +} + +static void +reload_prop_value (MetaGroup *group, + MetaPropValue *value) +{ + MetaGroupPropHooks *hooks; + + hooks = find_hooks (group->display, value->atom); + if (hooks && hooks->reload_func != NULL) + (* hooks->reload_func) (group, value); +} + +static void +init_wm_client_machine (MetaDisplay *display, + Atom property, + MetaPropValue *value) +{ + value->type = META_PROP_VALUE_STRING; + value->atom = display->atom_WM_CLIENT_MACHINE; +} + +static void +reload_wm_client_machine (MetaGroup *group, + MetaPropValue *value) +{ + g_free (group->wm_client_machine); + group->wm_client_machine = NULL; + + if (value->type != META_PROP_VALUE_INVALID) + group->wm_client_machine = g_strdup (value->v.str); + + meta_verbose ("Group has client machine \"%s\"\n", + group->wm_client_machine ? group->wm_client_machine : "unset"); +} + +static void +init_net_startup_id (MetaDisplay *display, + Atom property, + MetaPropValue *value) +{ + value->type = META_PROP_VALUE_UTF8; + value->atom = display->atom__NET_STARTUP_ID; +} + +static void +reload_net_startup_id (MetaGroup *group, + MetaPropValue *value) +{ + g_free (group->startup_id); + group->startup_id = NULL; + + if (value->type != META_PROP_VALUE_INVALID) + group->startup_id = g_strdup (value->v.str); + + meta_verbose ("Group has startup id \"%s\"\n", + group->startup_id ? group->startup_id : "unset"); +} + +#define N_HOOKS 3 + +void +meta_display_init_group_prop_hooks (MetaDisplay *display) +{ + int i; + MetaGroupPropHooks *hooks; + + g_assert (display->group_prop_hooks == NULL); + + display->group_prop_hooks = g_new0 (MetaGroupPropHooks, N_HOOKS); + hooks = display->group_prop_hooks; + + i = 0; + + hooks[i].property = display->atom_WM_CLIENT_MACHINE; + hooks[i].init_func = init_wm_client_machine; + hooks[i].reload_func = reload_wm_client_machine; + ++i; + + hooks[i].property = display->atom__NET_WM_PID; + hooks[i].init_func = NULL; + hooks[i].reload_func = NULL; + ++i; + + hooks[i].property = display->atom__NET_STARTUP_ID; + hooks[i].init_func = init_net_startup_id; + hooks[i].reload_func = reload_net_startup_id; + ++i; + + if (i != N_HOOKS) + { + g_error ("Initialized %d group hooks should have been %d\n", i, N_HOOKS); + } +} + +void +meta_display_free_group_prop_hooks (MetaDisplay *display) +{ + g_assert (display->group_prop_hooks != NULL); + + g_free (display->group_prop_hooks); + display->group_prop_hooks = NULL; +} + +static MetaGroupPropHooks* +find_hooks (MetaDisplay *display, + Atom property) +{ + int i; + + /* FIXME we could sort the array and do binary search or + * something + */ + + i = 0; + while (i < N_HOOKS) + { + if (display->group_prop_hooks[i].property == property) + return &display->group_prop_hooks[i]; + + ++i; + } + + return NULL; +} |