Add a11y-settings plugin

6 files changed, 467 insertions, 0 deletions

diff --git a/plugins/a11y-settings/Makefile.am b/plugins/a11y-settings/Makefile.am
new file mode 100644
index 0000000..f557b0f
--- /dev/null
+++ b/plugins/a11y-settings/Makefile.am
@@ -0,0 +1,42 @@
+plugin_name = ally-settings
+
+plugin_LTLIBRARIES = \
+	liba11y-settings.la
+
+liba11y_settings_la_SOURCES = 		\
+	msd-a11y-settings-manager.c	\
+	msd-a11y-settings-manager.h	\
+	msd-a11y-settings-plugin.c	\
+	msd-a11y-settings-plugin.h
+
+liba11y_settings_la_CPPFLAGS = \
+	-I$(top_srcdir)/mate-settings-daemon		\
+	-DMATE_SETTINGS_LOCALEDIR=\""$(datadir)/locale"\" \
+	$(AM_CPPFLAGS)
+
+liba11y_settings_la_CFLAGS = \
+	$(PLUGIN_CFLAGS)		\
+	$(SETTINGS_PLUGIN_CFLAGS)	\
+	$(AM_CFLAGS)
+
+liba11y_settings_la_LDFLAGS = 		\
+	$(MSD_PLUGIN_LDFLAGS)
+
+liba11y_settings_la_LIBADD  = 		\
+	$(SETTINGS_PLUGIN_LIBS)
+
+plugin_in_files = 		\
+	a11y-settings.mate-settings-plugin.in
+
+plugin_DATA = $(plugin_in_files:.mate-settings-plugin.in=.mate-settings-plugin)
+
+EXTRA_DIST = 			\
+	$(plugin_in_files)
+
+CLEANFILES = 			\
+	$(plugin_DATA)
+
+DISTCLEANFILES =		\
+	$(plugin_DATA)
+
+@MSD_INTLTOOL_PLUGIN_RULE@
diff --git a/plugins/a11y-settings/a11y-settings.mate-settings-plugin.in b/plugins/a11y-settings/a11y-settings.mate-settings-plugin.in
new file mode 100644
index 0000000..ecdd80d
--- /dev/null
+++ b/plugins/a11y-settings/a11y-settings.mate-settings-plugin.in
@@ -0,0 +1,8 @@
+[MATE Settings Plugin]
+Module=a11y-settings
+IAge=0
+_Name=Accessibility settings
+_Description=Accessibility settings plugin
+Authors=Bastien Nocera <[email protected]>
+Copyright=Copyright © 2011 Red Hat Inc.
+Website=
diff --git a/plugins/a11y-settings/msd-a11y-settings-manager.c b/plugins/a11y-settings/msd-a11y-settings-manager.c
new file mode 100644
index 0000000..45469be
--- /dev/null
+++ b/plugins/a11y-settings/msd-a11y-settings-manager.c
@@ -0,0 +1,192 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2007 William Jon McCann <[email protected]>
+ *
+ * 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 <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 <glib/gi18n.h>
+#include <gdk/gdk.h>
+#include <gdk/gdkx.h>
+#include <gtk/gtk.h>
+
+#include "mate-settings-profile.h"
+#include "msd-a11y-settings-manager.h"
+
+#define MSD_A11Y_SETTINGS_MANAGER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), MSD_TYPE_A11Y_SETTINGS_MANAGER, MsdA11ySettingsManagerPrivate))
+
+struct MsdA11ySettingsManagerPrivate
+{
+        GSettings *interface_settings;
+        GSettings *a11y_apps_settings;
+};
+
+enum {
+        PROP_0,
+};
+
+static void     msd_a11y_settings_manager_class_init  (MsdA11ySettingsManagerClass *klass);
+static void     msd_a11y_settings_manager_init        (MsdA11ySettingsManager      *a11y_settings_manager);
+static void     msd_a11y_settings_manager_finalize    (GObject                     *object);
+
+G_DEFINE_TYPE (MsdA11ySettingsManager, msd_a11y_settings_manager, G_TYPE_OBJECT)
+
+static gpointer manager_object = NULL;
+
+static void
+apps_settings_changed (GSettings              *settings,
+		       const char             *key,
+		       MsdA11ySettingsManager *manager)
+{
+	gboolean screen_reader, keyboard;
+
+	if (g_str_equal (key, "screen-reader-enabled") == FALSE &&
+	    g_str_equal (key, "screen-keyboard-enabled") == FALSE)
+		return;
+
+	g_debug ("screen reader or OSK enablement changed");
+
+	screen_reader = g_settings_get_boolean (manager->priv->a11y_apps_settings, "screen-reader-enabled");
+	keyboard = g_settings_get_boolean (manager->priv->a11y_apps_settings, "screen-keyboard-enabled");
+
+	if (screen_reader || keyboard) {
+		g_debug ("Enabling accessibility, screen reader or OSK enabled");
+		g_settings_set_boolean (manager->priv->interface_settings, "accessibility", TRUE);
+	} else if (screen_reader == FALSE && keyboard == FALSE) {
+		g_debug ("Disabling accessibility, screen reader and OSK disabled");
+		g_settings_set_boolean (manager->priv->interface_settings, "accessibility", FALSE);
+	}
+}
+
+gboolean
+msd_a11y_settings_manager_start (MsdA11ySettingsManager *manager,
+                                 GError                **error)
+{
+        g_debug ("Starting a11y_settings manager");
+        mate_settings_profile_start (NULL);
+
+	manager->priv->interface_settings = g_settings_new ("org.mate.interface");
+	manager->priv->a11y_apps_settings = g_settings_new ("org.mate.applications-at");
+
+	g_signal_connect (G_OBJECT (manager->priv->a11y_apps_settings), "changed",
+			  G_CALLBACK (apps_settings_changed), manager);
+
+	/* If any of the screen reader or on-screen keyboard 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->priv->a11y_apps_settings, "screen-keyboard-enabled") ||
+	    g_settings_get_boolean (manager->priv->a11y_apps_settings, "screen-reader-enabled"))
+		g_settings_set_boolean (manager->priv->interface_settings, "accessibility", TRUE);
+
+        mate_settings_profile_end (NULL);
+        return TRUE;
+}
+
+void
+msd_a11y_settings_manager_stop (MsdA11ySettingsManager *manager)
+{
+	if (manager->priv->interface_settings) {
+		g_object_unref (manager->priv->interface_settings);
+		manager->priv->interface_settings = NULL;
+	}
+	if (manager->priv->a11y_apps_settings) {
+		g_object_unref (manager->priv->a11y_apps_settings);
+		manager->priv->a11y_apps_settings = NULL;
+	}
+        g_debug ("Stopping a11y_settings manager");
+}
+
+static GObject *
+msd_a11y_settings_manager_constructor (GType                  type,
+                                       guint                  n_construct_properties,
+                                       GObjectConstructParam *construct_properties)
+{
+        MsdA11ySettingsManager      *a11y_settings_manager;
+
+        a11y_settings_manager = MSD_A11Y_SETTINGS_MANAGER (G_OBJECT_CLASS (msd_a11y_settings_manager_parent_class)->constructor (type,
+                                                                                                                                 n_construct_properties,
+                                                                                                                                 construct_properties));
+
+        return G_OBJECT (a11y_settings_manager);
+}
+
+static void
+msd_a11y_settings_manager_dispose (GObject *object)
+{
+        G_OBJECT_CLASS (msd_a11y_settings_manager_parent_class)->dispose (object);
+}
+
+static void
+msd_a11y_settings_manager_class_init (MsdA11ySettingsManagerClass *klass)
+{
+        GObjectClass   *object_class = G_OBJECT_CLASS (klass);
+
+        object_class->constructor = msd_a11y_settings_manager_constructor;
+        object_class->dispose = msd_a11y_settings_manager_dispose;
+        object_class->finalize = msd_a11y_settings_manager_finalize;
+
+        g_type_class_add_private (klass, sizeof (MsdA11ySettingsManagerPrivate));
+}
+
+static void
+msd_a11y_settings_manager_init (MsdA11ySettingsManager *manager)
+{
+        manager->priv = MSD_A11Y_SETTINGS_MANAGER_GET_PRIVATE (manager);
+
+}
+
+static void
+msd_a11y_settings_manager_finalize (GObject *object)
+{
+        MsdA11ySettingsManager *a11y_settings_manager;
+
+        g_return_if_fail (object != NULL);
+        g_return_if_fail (MSD_IS_A11Y_SETTINGS_MANAGER (object));
+
+        a11y_settings_manager = MSD_A11Y_SETTINGS_MANAGER (object);
+
+        g_return_if_fail (a11y_settings_manager->priv != NULL);
+
+        G_OBJECT_CLASS (msd_a11y_settings_manager_parent_class)->finalize (object);
+}
+
+MsdA11ySettingsManager *
+msd_a11y_settings_manager_new (void)
+{
+        if (manager_object != NULL) {
+                g_object_ref (manager_object);
+        } else {
+                manager_object = g_object_new (MSD_TYPE_A11Y_SETTINGS_MANAGER, NULL);
+                g_object_add_weak_pointer (manager_object,
+                                           (gpointer *) &manager_object);
+        }
+
+        return MSD_A11Y_SETTINGS_MANAGER (manager_object);
+}
diff --git a/plugins/a11y-settings/msd-a11y-settings-manager.h b/plugins/a11y-settings/msd-a11y-settings-manager.h
new file mode 100644
index 0000000..9f6e3f7
--- /dev/null
+++ b/plugins/a11y-settings/msd-a11y-settings-manager.h
@@ -0,0 +1,57 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2007 William Jon McCann <[email protected]>
+ *
+ * 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.
+ *
+ */
+
+#ifndef __MSD_A11Y_SETTINGS_MANAGER_H
+#define __MSD_A11Y_SETTINGS_MANAGER_H
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define MSD_TYPE_A11Y_SETTINGS_MANAGER         (msd_a11y_settings_manager_get_type ())
+#define MSD_A11Y_SETTINGS_MANAGER(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), MSD_TYPE_A11Y_SETTINGS_MANAGER, MsdA11ySettingsManager))
+#define MSD_A11Y_SETTINGS_MANAGER_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), MSD_TYPE_A11Y_SETTINGS_MANAGER, MsdA11ySettingsManagerClass))
+#define MSD_IS_A11Y_SETTINGS_MANAGER(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), MSD_TYPE_A11Y_SETTINGS_MANAGER))
+#define MSD_IS_A11Y_SETTINGS_MANAGER_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), MSD_TYPE_A11Y_SETTINGS_MANAGER))
+#define MSD_A11Y_SETTINGS_MANAGER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), MSD_TYPE_A11Y_SETTINGS_MANAGER, MsdA11ySettingsManagerClass))
+
+typedef struct MsdA11ySettingsManagerPrivate MsdA11ySettingsManagerPrivate;
+
+typedef struct
+{
+        GObject                        parent;
+        MsdA11ySettingsManagerPrivate *priv;
+} MsdA11ySettingsManager;
+
+typedef struct
+{
+        GObjectClass   parent_class;
+} MsdA11ySettingsManagerClass;
+
+GType                   msd_a11y_settings_manager_get_type            (void);
+
+MsdA11ySettingsManager *msd_a11y_settings_manager_new                 (void);
+gboolean                msd_a11y_settings_manager_start               (MsdA11ySettingsManager *manager,
+                                                                       GError         **error);
+void                    msd_a11y_settings_manager_stop                (MsdA11ySettingsManager *manager);
+
+G_END_DECLS
+
+#endif /* __MSD_A11Y_SETTINGS_MANAGER_H */
diff --git a/plugins/a11y-settings/msd-a11y-settings-plugin.c b/plugins/a11y-settings/msd-a11y-settings-plugin.c
new file mode 100644
index 0000000..9d206c8
--- /dev/null
+++ b/plugins/a11y-settings/msd-a11y-settings-plugin.c
@@ -0,0 +1,109 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2007 William Jon McCann <[email protected]>
+ *
+ * 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, 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 <glib/gi18n-lib.h>
+#include <gmodule.h>
+
+#include "mate-settings-plugin.h"
+#include "msd-a11y-settings-plugin.h"
+#include "msd-a11y-settings-manager.h"
+
+struct MsdA11ySettingsPluginPrivate {
+        MsdA11ySettingsManager *manager;
+};
+
+#define MSD_A11Y_SETTINGS_PLUGIN_GET_PRIVATE(object) (G_TYPE_INSTANCE_GET_PRIVATE ((object), MSD_TYPE_A11Y_SETTINGS_PLUGIN, MsdA11ySettingsPluginPrivate))
+
+MATE_SETTINGS_PLUGIN_REGISTER (MsdA11ySettingsPlugin, msd_a11y_settings_plugin)
+
+static void
+msd_a11y_settings_plugin_init (MsdA11ySettingsPlugin *plugin)
+{
+        plugin->priv = MSD_A11Y_SETTINGS_PLUGIN_GET_PRIVATE (plugin);
+
+        g_debug ("MsdA11ySettingsPlugin initializing");
+
+        plugin->priv->manager = msd_a11y_settings_manager_new ();
+}
+
+static void
+msd_a11y_settings_plugin_finalize (GObject *object)
+{
+        MsdA11ySettingsPlugin *plugin;
+
+        g_return_if_fail (object != NULL);
+        g_return_if_fail (MSD_IS_A11Y_SETTINGS_PLUGIN (object));
+
+        g_debug ("MsdA11ySettingsPlugin finalizing");
+
+        plugin = MSD_A11Y_SETTINGS_PLUGIN (object);
+
+        g_return_if_fail (plugin->priv != NULL);
+
+        if (plugin->priv->manager != NULL) {
+                g_object_unref (plugin->priv->manager);
+        }
+
+        G_OBJECT_CLASS (msd_a11y_settings_plugin_parent_class)->finalize (object);
+}
+
+static void
+impl_activate (MateSettingsPlugin *plugin)
+{
+        gboolean res;
+        GError  *error;
+
+        g_debug ("Activating a11y-settings plugin");
+
+        error = NULL;
+        res = msd_a11y_settings_manager_start (MSD_A11Y_SETTINGS_PLUGIN (plugin)->priv->manager, &error);
+        if (! res) {
+                g_warning ("Unable to start a11y-settings manager: %s", error->message);
+                g_error_free (error);
+        }
+}
+
+static void
+impl_deactivate (MateSettingsPlugin *plugin)
+{
+        g_debug ("Deactivating a11y-settings plugin");
+        msd_a11y_settings_manager_stop (MSD_A11Y_SETTINGS_PLUGIN (plugin)->priv->manager);
+}
+
+static void
+msd_a11y_settings_plugin_class_init (MsdA11ySettingsPluginClass *klass)
+{
+        GObjectClass             *object_class = G_OBJECT_CLASS (klass);
+        MateSettingsPluginClass *plugin_class = MATE_SETTINGS_PLUGIN_CLASS (klass);
+
+        object_class->finalize = msd_a11y_settings_plugin_finalize;
+
+        plugin_class->activate = impl_activate;
+        plugin_class->deactivate = impl_deactivate;
+
+        g_type_class_add_private (klass, sizeof (MsdA11ySettingsPluginPrivate));
+}
+
+static void
+msd_a11y_settings_plugin_class_finalize (MsdA11ySettingsPluginClass *klass)
+{
+}
diff --git a/plugins/a11y-settings/msd-a11y-settings-plugin.h b/plugins/a11y-settings/msd-a11y-settings-plugin.h
new file mode 100644
index 0000000..a19c8a4
--- /dev/null
+++ b/plugins/a11y-settings/msd-a11y-settings-plugin.h
@@ -0,0 +1,59 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2011 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, 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.
+ *
+ */
+
+#ifndef __MSD_A11Y_SETTINGS_PLUGIN_H__
+#define __MSD_A11Y_SETTINGS_PLUGIN_H__
+
+#include <glib.h>
+#include <glib-object.h>
+#include <gmodule.h>
+
+#include "mate-settings-plugin.h"
+
+G_BEGIN_DECLS
+
+#define MSD_TYPE_A11Y_SETTINGS_PLUGIN                (msd_a11y_settings_plugin_get_type ())
+#define MSD_A11Y_SETTINGS_PLUGIN(o)                  (G_TYPE_CHECK_INSTANCE_CAST ((o), MSD_TYPE_A11Y_SETTINGS_PLUGIN, MsdA11ySettingsPlugin))
+#define MSD_A11Y_SETTINGS_PLUGIN_CLASS(k)            (G_TYPE_CHECK_CLASS_CAST((k), MSD_TYPE_A11Y_SETTINGS_PLUGIN, MsdA11ySettingsPluginClass))
+#define MSD_IS_A11Y_SETTINGS_PLUGIN(o)               (G_TYPE_CHECK_INSTANCE_TYPE ((o), MSD_TYPE_A11Y_SETTINGS_PLUGIN))
+#define MSD_IS_A11Y_SETTINGS_PLUGIN_CLASS(k)         (G_TYPE_CHECK_CLASS_TYPE ((k), MSD_TYPE_A11Y_SETTINGS_PLUGIN))
+#define MSD_A11Y_SETTINGS_PLUGIN_GET_CLASS(o)        (G_TYPE_INSTANCE_GET_CLASS ((o), MSD_TYPE_A11Y_SETTINGS_PLUGIN, MsdA11ySettingsPluginClass))
+
+typedef struct MsdA11ySettingsPluginPrivate MsdA11ySettingsPluginPrivate;
+
+typedef struct
+{
+        MateSettingsPlugin           parent;
+        MsdA11ySettingsPluginPrivate *priv;
+} MsdA11ySettingsPlugin;
+
+typedef struct
+{
+        MateSettingsPluginClass parent_class;
+} MsdA11ySettingsPluginClass;
+
+GType   msd_a11y_settings_plugin_get_type            (void) G_GNUC_CONST;
+
+/* All the plugins must implement this function */
+G_MODULE_EXPORT GType register_mate_settings_plugin (GTypeModule *module);
+
+G_END_DECLS
+
+#endif /* __MSD_A11Y_SETTINGS_PLUGIN_H__ */