Adding upstream version 43.0.upstream/43.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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);
+}