diff options
Diffstat (limited to 'plugins/a11y-settings/gsd-a11y-settings-manager.c')
| -rw-r--r-- | plugins/a11y-settings/gsd-a11y-settings-manager.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/plugins/a11y-settings/gsd-a11y-settings-manager.c b/plugins/a11y-settings/gsd-a11y-settings-manager.c new file mode 100644 index 0000000..48cb43e --- /dev/null +++ b/plugins/a11y-settings/gsd-a11y-settings-manager.c @@ -0,0 +1,165 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- + * + * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu> + * + * 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, see <http://www.gnu.org/licenses/>. + * + */ + +#include "config.h" + +#include <sys/types.h> +#include <sys/wait.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#include <string.h> +#include <errno.h> + +#include <locale.h> + +#include <glib.h> +#include <gio/gio.h> + +#include "gnome-settings-profile.h" +#include "gsd-a11y-settings-manager.h" + +struct _GsdA11ySettingsManager +{ + GObject parent; + + GSettings *interface_settings; + GSettings *a11y_apps_settings; +}; + +enum { + PROP_0, +}; + +static void gsd_a11y_settings_manager_class_init (GsdA11ySettingsManagerClass *klass); +static void gsd_a11y_settings_manager_init (GsdA11ySettingsManager *a11y_settings_manager); +static void gsd_a11y_settings_manager_finalize (GObject *object); + +G_DEFINE_TYPE (GsdA11ySettingsManager, gsd_a11y_settings_manager, G_TYPE_OBJECT) + +static gpointer manager_object = NULL; + +static void +apps_settings_changed (GSettings *settings, + const char *key, + GsdA11ySettingsManager *manager) +{ + gboolean screen_reader, keyboard, magnifier; + + if (g_str_equal (key, "screen-reader-enabled") == FALSE && + g_str_equal (key, "screen-keyboard-enabled") == FALSE && + g_str_equal (key, "screen-magnifier-enabled") == FALSE) + return; + + g_debug ("screen reader, OSK or magnifier enablement changed"); + + screen_reader = g_settings_get_boolean (manager->a11y_apps_settings, "screen-reader-enabled"); + keyboard = g_settings_get_boolean (manager->a11y_apps_settings, "screen-keyboard-enabled"); + magnifier = g_settings_get_boolean (manager->a11y_apps_settings, "screen-magnifier-enabled"); + + if (screen_reader || keyboard || magnifier) { + g_debug ("Enabling toolkit-accessibility, screen reader, OSK or magnifier enabled"); + g_settings_set_boolean (manager->interface_settings, "toolkit-accessibility", TRUE); + } else if (screen_reader == FALSE && keyboard == FALSE && magnifier == FALSE) { + g_debug ("Disabling toolkit-accessibility, screen reader, OSK and magnifier disabled"); + g_settings_set_boolean (manager->interface_settings, "toolkit-accessibility", FALSE); + } +} + +gboolean +gsd_a11y_settings_manager_start (GsdA11ySettingsManager *manager, + GError **error) +{ + g_debug ("Starting a11y_settings manager"); + gnome_settings_profile_start (NULL); + + manager->interface_settings = g_settings_new ("org.gnome.desktop.interface"); + manager->a11y_apps_settings = g_settings_new ("org.gnome.desktop.a11y.applications"); + + g_signal_connect (G_OBJECT (manager->a11y_apps_settings), "changed", + G_CALLBACK (apps_settings_changed), manager); + + /* If any of the screen reader, on-screen keyboard or magnifier are + * enabled, make sure a11y is enabled for the toolkits. + * We don't do the same thing for the reverse so it's possible to + * enable AT-SPI for the toolkits without using an a11y app */ + if (g_settings_get_boolean (manager->a11y_apps_settings, "screen-keyboard-enabled") || + g_settings_get_boolean (manager->a11y_apps_settings, "screen-reader-enabled") || + g_settings_get_boolean (manager->a11y_apps_settings, "screen-magnifier-enabled")) + g_settings_set_boolean (manager->interface_settings, "toolkit-accessibility", TRUE); + + gnome_settings_profile_end (NULL); + return TRUE; +} + +void +gsd_a11y_settings_manager_stop (GsdA11ySettingsManager *manager) +{ + if (manager->interface_settings) { + g_object_unref (manager->interface_settings); + manager->interface_settings = NULL; + } + if (manager->a11y_apps_settings) { + g_object_unref (manager->a11y_apps_settings); + manager->a11y_apps_settings = NULL; + } + g_debug ("Stopping a11y_settings manager"); +} + +static void +gsd_a11y_settings_manager_class_init (GsdA11ySettingsManagerClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + object_class->finalize = gsd_a11y_settings_manager_finalize; +} + +static void +gsd_a11y_settings_manager_init (GsdA11ySettingsManager *manager) +{ +} + +static void +gsd_a11y_settings_manager_finalize (GObject *object) +{ + GsdA11ySettingsManager *a11y_settings_manager; + + g_return_if_fail (object != NULL); + g_return_if_fail (GSD_IS_A11Y_SETTINGS_MANAGER (object)); + + a11y_settings_manager = GSD_A11Y_SETTINGS_MANAGER (object); + + gsd_a11y_settings_manager_stop (a11y_settings_manager); + + G_OBJECT_CLASS (gsd_a11y_settings_manager_parent_class)->finalize (object); +} + +GsdA11ySettingsManager * +gsd_a11y_settings_manager_new (void) +{ + if (manager_object != NULL) { + g_object_ref (manager_object); + } else { + manager_object = g_object_new (GSD_TYPE_A11Y_SETTINGS_MANAGER, NULL); + g_object_add_weak_pointer (manager_object, + (gpointer *) &manager_object); + } + + return GSD_A11Y_SETTINGS_MANAGER (manager_object); +} |