/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- * * Copyright © 2001 Ximian, Inc. * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. * */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef HAVE_LIBNOTIFY #include #endif /* HAVE_LIBNOTIFY */ #include "mate-settings-profile.h" #include "msd-a11y-keyboard-manager.h" #include "msd-a11y-preferences-dialog.h" #define CONFIG_SCHEMA "org.mate.accessibility-keyboard" #define NOTIFICATION_TIMEOUT 30 struct MsdA11yKeyboardManagerPrivate { int xkbEventBase; gboolean stickykeys_shortcut_val; gboolean slowkeys_shortcut_val; GtkWidget *stickykeys_alert; GtkWidget *slowkeys_alert; GtkWidget *preferences_dialog; GtkStatusIcon *status_icon; XkbDescRec *original_xkb_desc; GSettings *settings; #ifdef HAVE_LIBNOTIFY NotifyNotification *notification; #endif /* HAVE_LIBNOTIFY */ }; static void msd_a11y_keyboard_manager_finalize (GObject *object); static void msd_a11y_keyboard_manager_ensure_status_icon (MsdA11yKeyboardManager *manager); static void set_server_from_settings (MsdA11yKeyboardManager *manager); G_DEFINE_TYPE_WITH_PRIVATE (MsdA11yKeyboardManager, msd_a11y_keyboard_manager, G_TYPE_OBJECT) static gpointer manager_object = NULL; #undef DEBUG_ACCESSIBILITY #ifdef DEBUG_ACCESSIBILITY #define d(str) g_debug (str) #else #define d(str) do { } while (0) #endif static GdkFilterReturn devicepresence_filter (GdkXEvent *xevent, GdkEvent *event, gpointer data) { XEvent *xev = (XEvent *) xevent; G_GNUC_UNUSED XEventClass class_presence; int xi_presence; DevicePresence (gdk_x11_get_default_xdisplay (), xi_presence, class_presence); if (xev->type == xi_presence) { XDevicePresenceNotifyEvent *dpn = (XDevicePresenceNotifyEvent *) xev; if (dpn->devchange == DeviceEnabled) { set_server_from_settings (data); } } return GDK_FILTER_CONTINUE; } static gboolean supports_xinput_devices (void) { gint op_code, event, error; return XQueryExtension (GDK_DISPLAY_XDISPLAY(gdk_display_get_default()), "XInputExtension", &op_code, &event, &error); } static void set_devicepresence_handler (MsdA11yKeyboardManager *manager) { Display *display; GdkDisplay *gdk_display; XEventClass class_presence; G_GNUC_UNUSED int xi_presence; if (!supports_xinput_devices ()) return; display = gdk_x11_get_default_xdisplay (); gdk_display = gdk_display_get_default (); gdk_x11_display_error_trap_push (gdk_display); DevicePresence (display, xi_presence, class_presence); /* FIXME: * Note that this might overwrite other events, see: * https://bugzilla.gnome.org/show_bug.cgi?id=610245#c2 **/ XSelectExtensionEvent (display, RootWindow (display, DefaultScreen (display)), &class_presence, 1); gdk_display_flush (gdk_display); if (!gdk_x11_display_error_trap_pop (gdk_display)) gdk_window_add_filter (NULL, devicepresence_filter, manager); } static gboolean xkb_enabled (MsdA11yKeyboardManager *manager) { gboolean have_xkb; int opcode, errorBase, major, minor; have_xkb = XkbQueryExtension (GDK_DISPLAY_XDISPLAY(gdk_display_get_default()), &opcode, &manager->priv->xkbEventBase, &errorBase, &major, &minor) && XkbUseExtension (GDK_DISPLAY_XDISPLAY(gdk_display_get_default()), &major, &minor); return have_xkb; } static XkbDescRec * get_xkb_desc_rec (MsdA11yKeyboardManager *manager) { GdkDisplay *display; XkbDescRec *desc; Status status = Success; display = gdk_display_get_default (); gdk_x11_display_error_trap_push (display); desc = XkbGetMap (GDK_DISPLAY_XDISPLAY(display), XkbAllMapComponentsMask, XkbUseCoreKbd); if (desc != NULL) { desc->ctrls = NULL; status = XkbGetControls (GDK_DISPLAY_XDISPLAY(display), XkbAllControlsMask, desc); } gdk_x11_display_error_trap_pop_ignored (display); g_return_val_if_fail (desc != NULL, NULL); g_return_val_if_fail (desc->ctrls != NULL, NULL); g_return_val_if_fail (status == Success, NULL); return desc; } static int get_int (GSettings *settings, char const *key) { int res = g_settings_get_int (settings, key); if (res <= 0) { res = 1; } return res; } static gboolean set_int (GSettings *settings, char const *key, int val) { int pre_val = g_settings_get_int (settings, key); g_settings_set_int (settings, key, val); #ifdef DEBUG_ACCESSIBILITY if (val != pre_val) { g_warning ("%s changed", key); } #endif return val != pre_val; } static gboolean set_bool (GSettings *settings, char const *key, int val) { gboolean bval = (val != 0); gboolean pre_val = g_settings_get_boolean (settings, key); g_settings_set_boolean (settings, key, bval ? TRUE : FALSE); #ifdef DEBUG_ACCESSIBILITY if (bval != pre_val) { d ("%s changed", key); return TRUE; } #endif return (bval != pre_val); } static unsigned long set_clear (gboolean flag, unsigned long value, unsigned long mask) { if (flag) { return value | mask; } return value & ~mask; } static gboolean set_ctrl_from_settings (XkbDescRec *desc, GSettings *settings, char const *key, unsigned long mask) { gboolean result = g_settings_get_boolean (settings, key); desc->ctrls->enabled_ctrls = set_clear (result, desc->ctrls->enabled_ctrls, mask); return result; } static void set_server_from_settings (MsdA11yKeyboardManager *manager) { XkbDescRec *desc; gboolean enable_accessX; GdkDisplay *display; mate_settings_profile_start (NULL); desc = get_xkb_desc_rec (manager); if (!desc) { return; } /* general */ enable_accessX = g_settings_get_boolean (manager->priv->settings, "enable"); desc->ctrls->enabled_ctrls = set_clear (enable_accessX, desc->ctrls->enabled_ctrls, XkbAccessXKeysMask); if (set_ctrl_from_settings (desc, manager->priv->settings, "timeout-enable", XkbAccessXTimeoutMask)) { desc->ctrls->ax_timeout = get_int (manager->priv->settings, "timeout"); /* disable only the master flag via the server we will disable * the rest on the rebound without affecting gsettings state * don't change the option flags at all. */ desc->ctrls->axt_ctrls_mask = XkbAccessXKeysMask | XkbAccessXFeedbackMask; desc->ctrls->axt_ctrls_values = 0; desc->ctrls->axt_opts_mask = 0; } desc->ctrls->ax_options = set_clear (g_settings_get_boolean (manager->priv->settings, "feature-state-change-beep"), desc->ctrls->ax_options, XkbAccessXFeedbackMask | XkbAX_FeatureFBMask | XkbAX_SlowWarnFBMask); /* bounce keys */ if (set_ctrl_from_settings (desc, manager->priv->settings, "bouncekeys-enable", XkbBounceKeysMask)) { desc->ctrls->debounce_delay = get_int (manager->priv->settings, "bouncekeys-delay"); desc->ctrls->ax_options = set_clear (g_settings_get_boolean (manager->priv->settings, "bouncekeys-beep-reject"), desc->ctrls->ax_options, XkbAccessXFeedbackMask | XkbAX_BKRejectFBMask); } /* mouse keys */ if (set_ctrl_from_settings (desc, manager->priv->settings, "mousekeys-enable", XkbMouseKeysMask | XkbMouseKeysAccelMask)) { desc->ctrls->mk_interval = 100; /* msec between mousekey events */ desc->ctrls->mk_curve = 50; /* We store pixels / sec, XKB wants pixels / event */ desc->ctrls->mk_max_speed = get_int (manager->priv->settings, "mousekeys-max-speed") / (1000 / desc->ctrls->mk_interval); if (desc->ctrls->mk_max_speed <= 0) desc->ctrls->mk_max_speed = 1; desc->ctrls->mk_time_to_max = get_int (manager->priv->settings, /* events before max */ "mousekeys-accel-time") / desc->ctrls->mk_interval; if (desc->ctrls->mk_time_to_max <= 0) desc->ctrls->mk_time_to_max = 1; desc->ctrls->mk_delay = get_int (manager->priv->settings, /* ms before 1st event */ "mousekeys-init-delay"); } /* slow keys */ if (set_ctrl_from_settings (desc, manager->priv->settings, "slowkeys-enable", XkbSlowKeysMask)) { desc->ctrls->ax_options = set_clear (g_settings_get_boolean (manager->priv->settings, "slowkeys-beep-press"), desc->ctrls->ax_options, XkbAccessXFeedbackMask | XkbAX_SKPressFBMask); desc->ctrls->ax_options = set_clear (g_settings_get_boolean (manager->priv->settings, "slowkeys-beep-accept"), desc->ctrls->ax_options, XkbAccessXFeedbackMask | XkbAX_SKAcceptFBMask); desc->ctrls->ax_options = set_clear (g_settings_get_boolean (manager->priv->settings, "slowkeys-beep-reject"), desc->ctrls->ax_options, XkbAccessXFeedbackMask | XkbAX_SKRejectFBMask); desc->ctrls->slow_keys_delay = get_int (manager->priv->settings, "slowkeys-delay"); /* anything larger than 500 seems to loose all keyboard input */ if (desc->ctrls->slow_keys_delay > 500) desc->ctrls->slow_keys_delay = 500; } /* sticky keys */ if (set_ctrl_from_settings (desc, manager->priv->settings, "stickykeys-enable", XkbStickyKeysMask)) { desc->ctrls->ax_options = set_clear (g_settings_get_boolean (manager->priv->settings, "stickykeys-latch-to-lock"), desc->ctrls->ax_options, XkbAccessXFeedbackMask | XkbAX_LatchToLockMask); desc->ctrls->ax_options = set_clear (g_settings_get_boolean (manager->priv->settings, "stickykeys-two-key-off"), desc->ctrls->ax_options, XkbAccessXFeedbackMask | XkbAX_TwoKeysMask); desc->ctrls->ax_options = set_clear (g_settings_get_boolean (manager->priv->settings, "stickykeys-modifier-beep"), desc->ctrls->ax_options, XkbAccessXFeedbackMask | XkbAX_StickyKeysFBMask); } /* toggle keys */ desc->ctrls->ax_options = set_clear (g_settings_get_boolean (manager->priv->settings, "togglekeys-enable"), desc->ctrls->ax_options, XkbAccessXFeedbackMask | XkbAX_IndicatorFBMask); /* g_debug ("CHANGE to : 0x%x", desc->ctrls->enabled_ctrls); g_debug ("CHANGE to : 0x%x (2)", desc->ctrls->ax_options); */ display = gdk_display_get_default (); gdk_x11_display_error_trap_push (display); XkbSetControls (GDK_DISPLAY_XDISPLAY(display), XkbSlowKeysMask | XkbBounceKeysMask | XkbStickyKeysMask | XkbMouseKeysMask | XkbMouseKeysAccelMask | XkbAccessXKeysMask | XkbAccessXTimeoutMask | XkbAccessXFeedbackMask | XkbControlsEnabledMask, desc); XkbFreeKeyboard (desc, XkbAllComponentsMask, True); XSync (GDK_DISPLAY_XDISPLAY(display), FALSE); gdk_x11_display_error_trap_pop_ignored (display); mate_settings_profile_end (NULL); } static gboolean ax_response_callback (MsdA11yKeyboardManager *manager, GtkWindow *parent, gint response_id, guint revert_controls_mask, gboolean enabled) { GError *err; switch (response_id) { case GTK_RESPONSE_DELETE_EVENT: case GTK_RESPONSE_REJECT: case GTK_RESPONSE_CANCEL: /* we're reverting, so we invert sense of 'enabled' flag */ d ("cancelling AccessX request"); if (revert_controls_mask == XkbStickyKeysMask) { g_settings_set_boolean (manager->priv->settings, "stickykeys-enable", !enabled); } else if (revert_controls_mask == XkbSlowKeysMask) { g_settings_set_boolean (manager->priv->settings, "slowkeys-enable", !enabled); } set_server_from_settings (manager); break; case GTK_RESPONSE_HELP: err = NULL; if (!gtk_show_uri_on_window (parent, "help:mate-user-guide/goscustaccess-6", gtk_get_current_event_time(), &err)) { GtkWidget *error_dialog = gtk_message_dialog_new (parent, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, _("There was an error displaying help: %s"), err->message); g_signal_connect (error_dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL); gtk_window_set_resizable (GTK_WINDOW (error_dialog), FALSE); gtk_widget_show (error_dialog); g_error_free (err); } return FALSE; default: break; } return TRUE; } static void ax_stickykeys_response (GtkDialog *dialog, gint response_id, MsdA11yKeyboardManager *manager) { if (ax_response_callback (manager, GTK_WINDOW (dialog), response_id, XkbStickyKeysMask, manager->priv->stickykeys_shortcut_val)) { gtk_widget_destroy (GTK_WIDGET (dialog)); } } static void ax_slowkeys_response (GtkDialog *dialog, gint response_id, MsdA11yKeyboardManager *manager) { if (ax_response_callback (manager, GTK_WINDOW (dialog), response_id, XkbSlowKeysMask, manager->priv->slowkeys_shortcut_val)) { gtk_widget_destroy (GTK_WIDGET (dialog)); } } static void maybe_show_status_icon (MsdA11yKeyboardManager *manager) { gboolean show; /* for now, show if accessx is enabled */ show = g_settings_get_boolean (manager->priv->settings, "enable"); if (!show && manager->priv->status_icon == NULL) return; msd_a11y_keyboard_manager_ensure_status_icon (manager); gtk_status_icon_set_visible (manager->priv->status_icon, show); } #ifdef HAVE_LIBNOTIFY static void on_notification_closed (NotifyNotification *notification, MsdA11yKeyboardManager *manager) { g_object_unref (manager->priv->notification); manager->priv->notification = NULL; } static void on_slow_keys_action (NotifyNotification *notification, const char *action, MsdA11yKeyboardManager *manager) { gboolean res; int response_id; g_assert (action != NULL); if (strcmp (action, "accept") == 0) { response_id = GTK_RESPONSE_ACCEPT; } else if (strcmp (action, "reject") == 0) { response_id = GTK_RESPONSE_REJECT; } else { return; } res = ax_response_callback (manager, NULL, response_id, XkbSlowKeysMask, manager->priv->slowkeys_shortcut_val); if (res) { notify_notification_close (manager->priv->notification, NULL); } } static void on_sticky_keys_action (NotifyNotification *notification, const char *action, MsdA11yKeyboardManager *manager) { gboolean res; int response_id; g_assert (action != NULL); if (strcmp (action, "accept") == 0) { response_id = GTK_RESPONSE_ACCEPT; } else if (strcmp (action, "reject") == 0) { response_id = GTK_RESPONSE_REJECT; } else { return; } res = ax_response_callback (manager, NULL, response_id, XkbStickyKeysMask, manager->priv->stickykeys_shortcut_val); if (res) { notify_notification_close (manager->priv->notification, NULL); } } #endif /* HAVE_LIBNOTIFY */ static gboolean ax_slowkeys_warning_post_bubble (MsdA11yKeyboardManager *manager, gboolean enabled) { #ifdef HAVE_LIBNOTIFY gboolean res; const char *title; const char *message; GError *error; title = enabled ? _("Do you want to activate Slow Keys?") : _("Do you want to deactivate Slow Keys?"); message = _("You just held down the Shift key for 8 seconds. This is the shortcut " "for the Slow Keys feature, which affects the way your keyboard works."); if (manager->priv->status_icon == NULL || ! gtk_status_icon_is_embedded (manager->priv->status_icon)) { return FALSE; } if (manager->priv->slowkeys_alert != NULL) { gtk_widget_destroy (manager->priv->slowkeys_alert); } if (manager->priv->notification != NULL) { notify_notification_close (manager->priv->notification, NULL); } msd_a11y_keyboard_manager_ensure_status_icon (manager); manager->priv->notification = notify_notification_new (title, message, "preferences-desktop-accessibility"); notify_notification_set_timeout (manager->priv->notification, NOTIFICATION_TIMEOUT * 1000); notify_notification_add_action (manager->priv->notification, "reject", enabled ? _("Don't activate") : _("Don't deactivate"), (NotifyActionCallback) on_slow_keys_action, manager, NULL); notify_notification_add_action (manager->priv->notification, "accept", enabled ? _("Activate") : _("Deactivate"), (NotifyActionCallback) on_slow_keys_action, manager, NULL); g_signal_connect (manager->priv->notification, "closed", G_CALLBACK (on_notification_closed), manager); error = NULL; res = notify_notification_show (manager->priv->notification, &error); if (! res) { g_warning ("MsdA11yKeyboardManager: unable to show notification: %s", error->message); g_error_free (error); notify_notification_close (manager->priv->notification, NULL); } return res; #else return FALSE; #endif /* HAVE_LIBNOTIFY */ } static void ax_slowkeys_warning_post_dialog (MsdA11yKeyboardManager *manager, gboolean enabled) { const char *title; const char *message; title = enabled ? _("Do you want to activate Slow Keys?") : _("Do you want to deactivate Slow Keys?"); message = _("You just held down the Shift key for 8 seconds. This is the shortcut " "for the Slow Keys feature, which affects the way your keyboard works."); if (manager->priv->slowkeys_alert != NULL) { gtk_widget_show (manager->priv->slowkeys_alert); return; } manager->priv->slowkeys_alert = gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_WARNING, GTK_BUTTONS_NONE, "%s", title); gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (manager->priv->slowkeys_alert), "%s", message); gtk_dialog_add_button (GTK_DIALOG (manager->priv->slowkeys_alert), GTK_STOCK_HELP, GTK_RESPONSE_HELP); gtk_dialog_add_button (GTK_DIALOG (manager->priv->slowkeys_alert), enabled ? _("Do_n't activate") : _("Do_n't deactivate"), GTK_RESPONSE_REJECT); gtk_dialog_add_button (GTK_DIALOG (manager->priv->slowkeys_alert), enabled ? _("_Activate") : _("_Deactivate"), GTK_RESPONSE_ACCEPT); gtk_window_set_title (GTK_WINDOW (manager->priv->slowkeys_alert), _("Slow Keys Alert")); gtk_window_set_icon_name (GTK_WINDOW (manager->priv->slowkeys_alert), "input-keyboard"); gtk_dialog_set_default_response (GTK_DIALOG (manager->priv->slowkeys_alert), GTK_RESPONSE_ACCEPT); g_signal_connect (manager->priv->slowkeys_alert, "response", G_CALLBACK (ax_slowkeys_response), manager); gtk_widget_show (manager->priv->slowkeys_alert); g_object_add_weak_pointer (G_OBJECT (manager->priv->slowkeys_alert), (gpointer*) &manager->priv->slowkeys_alert); } static void ax_slowkeys_warning_post (MsdA11yKeyboardManager *manager, gboolean enabled) { manager->priv->slowkeys_shortcut_val = enabled; /* alway try to show something */ if (! ax_slowkeys_warning_post_bubble (manager, enabled)) { ax_slowkeys_warning_post_dialog (manager, enabled); } } static gboolean ax_stickykeys_warning_post_bubble (MsdA11yKeyboardManager *manager, gboolean enabled) { #ifdef HAVE_LIBNOTIFY gboolean res; const char *title; const char *message; GError *error; title = enabled ? _("Do you want to activate Sticky Keys?") : _("Do you want to deactivate Sticky Keys?"); message = enabled ? _("You just pressed the Shift key 5 times in a row. This is the shortcut " "for the Sticky Keys feature, which affects the way your keyboard works.") : _("You just pressed two keys at once, or pressed the Shift key 5 times in a row. " "This turns off the Sticky Keys feature, which affects the way your keyboard works."); if (manager->priv->status_icon == NULL || ! gtk_status_icon_is_embedded (manager->priv->status_icon)) { return FALSE; } if (manager->priv->slowkeys_alert != NULL) { gtk_widget_destroy (manager->priv->slowkeys_alert); } if (manager->priv->notification != NULL) { notify_notification_close (manager->priv->notification, NULL); } msd_a11y_keyboard_manager_ensure_status_icon (manager); manager->priv->notification = notify_notification_new (title, message, "preferences-desktop-accessibility"); notify_notification_set_timeout (manager->priv->notification, NOTIFICATION_TIMEOUT * 1000); notify_notification_add_action (manager->priv->notification, "reject", enabled ? _("Don't activate") : _("Don't deactivate"), (NotifyActionCallback) on_sticky_keys_action, manager, NULL); notify_notification_add_action (manager->priv->notification, "accept", enabled ? _("Activate") : _("Deactivate"), (NotifyActionCallback) on_sticky_keys_action, manager, NULL); g_signal_connect (manager->priv->notification, "closed", G_CALLBACK (on_notification_closed), manager); error = NULL; res = notify_notification_show (manager->priv->notification, &error); if (! res) { g_warning ("MsdA11yKeyboardManager: unable to show notification: %s", error->message); g_error_free (error); notify_notification_close (manager->priv->notification, NULL); } return res; #else return FALSE; #endif /* HAVE_LIBNOTIFY */ } static void ax_stickykeys_warning_post_dialog (MsdA11yKeyboardManager *manager, gboolean enabled) { const char *title; const char *message; title = enabled ? _("Do you want to activate Sticky Keys?") : _("Do you want to deactivate Sticky Keys?"); message = enabled ? _("You just pressed the Shift key 5 times in a row. This is the shortcut " "for the Sticky Keys feature, which affects the way your keyboard works.") : _("You just pressed two keys at once, or pressed the Shift key 5 times in a row. " "This turns off the Sticky Keys feature, which affects the way your keyboard works."); if (manager->priv->stickykeys_alert != NULL) { gtk_widget_show (manager->priv->stickykeys_alert); return; } manager->priv->stickykeys_alert = gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_WARNING, GTK_BUTTONS_NONE, "%s", title); gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (manager->priv->stickykeys_alert), "%s", message); gtk_dialog_add_button (GTK_DIALOG (manager->priv->stickykeys_alert), GTK_STOCK_HELP, GTK_RESPONSE_HELP); gtk_dialog_add_button (GTK_DIALOG (manager->priv->stickykeys_alert), enabled ? _("Do_n't activate") : _("Do_n't deactivate"), GTK_RESPONSE_REJECT); gtk_dialog_add_button (GTK_DIALOG (manager->priv->stickykeys_alert), enabled ? _("_Activate") : _("_Deactivate"), GTK_RESPONSE_ACCEPT); gtk_window_set_title (GTK_WINDOW (manager->priv->stickykeys_alert), _("Sticky Keys Alert")); gtk_window_set_icon_name (GTK_WINDOW (manager->priv->stickykeys_alert), "input-keyboard"); gtk_dialog_set_default_response (GTK_DIALOG (manager->priv->stickykeys_alert), GTK_RESPONSE_ACCEPT); g_signal_connect (manager->priv->stickykeys_alert, "response", G_CALLBACK (ax_stickykeys_response), manager); gtk_widget_show (manager->priv->stickykeys_alert); g_object_add_weak_pointer (G_OBJECT (manager->priv->stickykeys_alert), (gpointer*) &manager->priv->stickykeys_alert); } static void ax_stickykeys_warning_post (MsdA11yKeyboardManager *manager, gboolean enabled) { manager->priv->stickykeys_shortcut_val = enabled; /* alway try to show something */ if (! ax_stickykeys_warning_post_bubble (manager, enabled)) { ax_stickykeys_warning_post_dialog (manager, enabled); } } static void set_settings_from_server (MsdA11yKeyboardManager *manager) { GSettings *settings; XkbDescRec *desc; gboolean changed = FALSE; gboolean slowkeys_changed; gboolean stickykeys_changed; desc = get_xkb_desc_rec (manager); if (! desc) { return; } settings = g_settings_new (CONFIG_SCHEMA); g_settings_delay(settings); /* fprintf (stderr, "changed to : 0x%x\n", desc->ctrls->enabled_ctrls); fprintf (stderr, "changed to : 0x%x (2)\n", desc->ctrls->ax_options); */ changed |= set_bool (settings, "enable", desc->ctrls->enabled_ctrls & XkbAccessXKeysMask); changed |= set_bool (settings, "feature-state-change-beep", desc->ctrls->ax_options & (XkbAX_FeatureFBMask | XkbAX_SlowWarnFBMask)); changed |= set_bool (settings, "timeout-enable", desc->ctrls->enabled_ctrls & XkbAccessXTimeoutMask); changed |= set_int (settings, "timeout", desc->ctrls->ax_timeout); changed |= set_bool (settings, "bouncekeys-enable", desc->ctrls->enabled_ctrls & XkbBounceKeysMask); changed |= set_int (settings, "bouncekeys-delay", desc->ctrls->debounce_delay); changed |= set_bool (settings, "bouncekeys-beep-reject", desc->ctrls->ax_options & XkbAX_BKRejectFBMask); changed |= set_bool (settings, "mousekeys-enable", desc->ctrls->enabled_ctrls & XkbMouseKeysMask); changed |= set_int (settings, "mousekeys-max-speed", desc->ctrls->mk_max_speed * (1000 / desc->ctrls->mk_interval)); /* NOTE : mk_time_to_max is measured in events not time */ changed |= set_int (settings, "mousekeys-accel-time", desc->ctrls->mk_time_to_max * desc->ctrls->mk_interval); changed |= set_int (settings, "mousekeys-init-delay", desc->ctrls->mk_delay); slowkeys_changed = set_bool (settings, "slowkeys-enable", desc->ctrls->enabled_ctrls & XkbSlowKeysMask); changed |= set_bool (settings, "slowkeys-beep-press", desc->ctrls->ax_options & XkbAX_SKPressFBMask); changed |= set_bool (settings, "slowkeys-beep-accept", desc->ctrls->ax_options & XkbAX_SKAcceptFBMask); changed |= set_bool (settings, "slowkeys-beep-reject", desc->ctrls->ax_options & XkbAX_SKRejectFBMask); changed |= set_int (settings, "slowkeys-delay", desc->ctrls->slow_keys_delay); stickykeys_changed = set_bool (settings, "stickykeys-enable", desc->ctrls->enabled_ctrls & XkbStickyKeysMask); changed |= set_bool (settings, "stickykeys-latch-to-lock", desc->ctrls->ax_options & XkbAX_LatchToLockMask); changed |= set_bool (settings, "stickykeys-two-key-off", desc->ctrls->ax_options & XkbAX_TwoKeysMask); changed |= set_bool (settings, "stickykeys-modifier-beep", desc->ctrls->ax_options & XkbAX_StickyKeysFBMask); changed |= set_bool (settings, "togglekeys-enable", desc->ctrls->ax_options & XkbAX_IndicatorFBMask); if (!changed && stickykeys_changed ^ slowkeys_changed) { /* * sticky or slowkeys has changed, singly, without our intervention. * 99% chance this is due to a keyboard shortcut being used. * we need to detect via this hack until we get * XkbAXN_AXKWarning notifications working (probable XKB bug), * at which time we can directly intercept such shortcuts instead. * See cb_xkb_event_filter () below. */ /* sanity check: are keyboard shortcuts available? */ if (desc->ctrls->enabled_ctrls & XkbAccessXKeysMask) { if (slowkeys_changed) { ax_slowkeys_warning_post (manager, desc->ctrls->enabled_ctrls & XkbSlowKeysMask); } else { ax_stickykeys_warning_post (manager, desc->ctrls->enabled_ctrls & XkbStickyKeysMask); } } } XkbFreeKeyboard (desc, XkbAllComponentsMask, True); changed |= (stickykeys_changed | slowkeys_changed); if (changed) { g_settings_apply (settings); } g_object_unref (settings); } static GdkFilterReturn cb_xkb_event_filter (GdkXEvent *xevent, GdkEvent *ignored1, MsdA11yKeyboardManager *manager) { XEvent *xev = (XEvent *) xevent; XkbEvent *xkbEv = (XkbEvent *) xevent; if (xev->xany.type == (manager->priv->xkbEventBase + XkbEventCode) && xkbEv->any.xkb_type == XkbControlsNotify) { d ("XKB state changed"); set_settings_from_server (manager); } else if (xev->xany.type == (manager->priv->xkbEventBase + XkbEventCode) && xkbEv->any.xkb_type == XkbAccessXNotify) { if (xkbEv->accessx.detail == XkbAXN_AXKWarning) { d ("About to turn on an AccessX feature from the keyboard!"); /* * TODO: when XkbAXN_AXKWarnings start working, we need to * invoke ax_keys_warning_dialog_run here instead of in * set_settings_from_server(). */ } } return GDK_FILTER_CONTINUE; } static void keyboard_callback (GSettings *settings, gchar *key, MsdA11yKeyboardManager *manager) { set_server_from_settings (manager); maybe_show_status_icon (manager); } static gboolean start_a11y_keyboard_idle_cb (MsdA11yKeyboardManager *manager) { guint event_mask; g_debug ("Starting a11y_keyboard manager"); mate_settings_profile_start (NULL); if (!xkb_enabled (manager)) goto out; manager->priv->settings = g_settings_new (CONFIG_SCHEMA); g_signal_connect (manager->priv->settings, "changed", G_CALLBACK (keyboard_callback), manager); set_devicepresence_handler (manager); /* Save current xkb state so we can restore it on exit */ manager->priv->original_xkb_desc = get_xkb_desc_rec (manager); event_mask = XkbControlsNotifyMask; #ifdef DEBUG_ACCESSIBILITY event_mask |= XkbAccessXNotifyMask; /* make default when AXN_AXKWarning works */ #endif /* be sure to init before starting to monitor the server */ set_server_from_settings (manager); XkbSelectEvents (GDK_DISPLAY_XDISPLAY(gdk_display_get_default()), XkbUseCoreKbd, event_mask, event_mask); gdk_window_add_filter (NULL, (GdkFilterFunc) cb_xkb_event_filter, manager); maybe_show_status_icon (manager); out: mate_settings_profile_end (NULL); return FALSE; } gboolean msd_a11y_keyboard_manager_start (MsdA11yKeyboardManager *manager, GError **error) { mate_settings_profile_start (NULL); g_idle_add ((GSourceFunc) start_a11y_keyboard_idle_cb, manager); mate_settings_profile_end (NULL); return TRUE; } static void restore_server_xkb_config (MsdA11yKeyboardManager *manager) { GdkDisplay *display; display = gdk_display_get_default (); gdk_x11_display_error_trap_push (display); XkbSetControls (GDK_DISPLAY_XDISPLAY(display), XkbSlowKeysMask | XkbBounceKeysMask | XkbStickyKeysMask | XkbMouseKeysMask | XkbMouseKeysAccelMask | XkbAccessXKeysMask | XkbAccessXTimeoutMask | XkbAccessXFeedbackMask | XkbControlsEnabledMask, manager->priv->original_xkb_desc); XkbFreeKeyboard (manager->priv->original_xkb_desc, XkbAllComponentsMask, True); XSync (GDK_DISPLAY_XDISPLAY(display), FALSE); gdk_x11_display_error_trap_pop_ignored (display); manager->priv->original_xkb_desc = NULL; } void msd_a11y_keyboard_manager_stop (MsdA11yKeyboardManager *manager) { MsdA11yKeyboardManagerPrivate *p = manager->priv; g_debug ("Stopping a11y_keyboard manager"); gdk_window_remove_filter (NULL, devicepresence_filter, manager); if (p->status_icon) gtk_status_icon_set_visible (p->status_icon, FALSE); if (p->settings != NULL) { g_object_unref (p->settings); p->settings = NULL; } gdk_window_remove_filter (NULL, (GdkFilterFunc) cb_xkb_event_filter, manager); /* Disable all the AccessX bits */ restore_server_xkb_config (manager); if (p->slowkeys_alert != NULL) gtk_widget_destroy (p->slowkeys_alert); if (p->stickykeys_alert != NULL) gtk_widget_destroy (p->stickykeys_alert); p->slowkeys_shortcut_val = FALSE; p->stickykeys_shortcut_val = FALSE; } static void msd_a11y_keyboard_manager_class_init (MsdA11yKeyboardManagerClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->finalize = msd_a11y_keyboard_manager_finalize; } static void on_preferences_dialog_response (GtkDialog *dialog, int response, MsdA11yKeyboardManager *manager) { g_signal_handlers_disconnect_by_func (dialog, on_preferences_dialog_response, manager); gtk_widget_destroy (GTK_WIDGET (dialog)); manager->priv->preferences_dialog = NULL; } static void on_status_icon_activate (GtkStatusIcon *status_icon, MsdA11yKeyboardManager *manager) { if (manager->priv->preferences_dialog == NULL) { manager->priv->preferences_dialog = msd_a11y_preferences_dialog_new (); g_signal_connect (manager->priv->preferences_dialog, "response", G_CALLBACK (on_preferences_dialog_response), manager); gtk_window_present (GTK_WINDOW (manager->priv->preferences_dialog)); } else { g_signal_handlers_disconnect_by_func (manager->priv->preferences_dialog, on_preferences_dialog_response, manager); gtk_widget_destroy (GTK_WIDGET (manager->priv->preferences_dialog)); manager->priv->preferences_dialog = NULL; } } static void msd_a11y_keyboard_manager_ensure_status_icon (MsdA11yKeyboardManager *manager) { mate_settings_profile_start (NULL); if (!manager->priv->status_icon) { manager->priv->status_icon = gtk_status_icon_new_from_icon_name ("preferences-desktop-accessibility"); g_signal_connect (manager->priv->status_icon, "activate", G_CALLBACK (on_status_icon_activate), manager); } mate_settings_profile_end (NULL); } static void msd_a11y_keyboard_manager_init (MsdA11yKeyboardManager *manager) { manager->priv = msd_a11y_keyboard_manager_get_instance_private (manager); } static void msd_a11y_keyboard_manager_finalize (GObject *object) { MsdA11yKeyboardManager *a11y_keyboard_manager; g_return_if_fail (object != NULL); g_return_if_fail (MSD_IS_A11Y_KEYBOARD_MANAGER (object)); a11y_keyboard_manager = MSD_A11Y_KEYBOARD_MANAGER (object); g_return_if_fail (a11y_keyboard_manager->priv != NULL); G_OBJECT_CLASS (msd_a11y_keyboard_manager_parent_class)->finalize (object); } MsdA11yKeyboardManager * msd_a11y_keyboard_manager_new (void) { if (manager_object != NULL) { g_object_ref (manager_object); } else { manager_object = g_object_new (MSD_TYPE_A11Y_KEYBOARD_MANAGER, NULL); g_object_add_weak_pointer (manager_object, (gpointer *) &manager_object); } return MSD_A11Y_KEYBOARD_MANAGER (manager_object); }