From b42e0ce69a7f232d4c29de284bd0b3ca4a38555d Mon Sep 17 00:00:00 2001 From: infirit Date: Sun, 2 Nov 2014 17:36:33 +0100 Subject: Add a11y-settings plugin --- plugins/a11y-settings/msd-a11y-settings-manager.c | 192 ++++++++++++++++++++++ 1 file changed, 192 insertions(+) create mode 100644 plugins/a11y-settings/msd-a11y-settings-manager.c (limited to 'plugins/a11y-settings/msd-a11y-settings-manager.c') 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 + * + * 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 +#include +#include +#include +#include +#include +#include + +#include + +#include +#include +#include +#include +#include + +#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); +} -- cgit v1.2.1