-/*
- * AT-SPI - Assistive Technology Service Provider Interface
+/* AT-SPI - Assistive Technology Service Provider Interface
+ *
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
- * Copyright 2001 Sun Microsystems Inc.
+ * Copyright 2001, 2003 Sun Microsystems Inc.,
+ * Copyright 2001, 2002 Ximian, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* Boston, MA 02111-1307, USA.
*/
-/*
- * listener.c: test for accessibility implementation
- *
- */
+/* deviceeventcontroller.c: implement the DeviceEventController interface */
-#ifdef SPI_DEBUG
+#include <config.h>
+
+#undef SPI_XKB_DEBUG
+#undef SPI_DEBUG
+#undef SPI_KEYEVENT_DEBUG
+
+#include <string.h>
+#include <ctype.h>
#include <stdio.h>
-#endif
+#include <sys/time.h>
#include <X11/Xlib.h>
#include <X11/extensions/XTest.h>
-#include <config.h>
+#include <X11/XKBlib.h>
+#define XK_MISCELLANY
+#define XK_LATIN1
+#include <X11/keysymdef.h>
+
+#ifdef HAVE_XEVIE
+#include <X11/Xproto.h>
+#include <X11/X.h>
+#include <X11/extensions/Xevie.h>
+#endif /* HAVE_XEVIE */
+
+#include <glib.h>
+#include <gdk/gdk.h>
#include <gdk/gdkx.h> /* TODO: hide dependency (wrap in single porting file) */
+#include <gdk/gdkkeysyms.h>
#include <gdk/gdkwindow.h>
-#include <bonobo/Bonobo.h>
-#include <libspi/Accessibility.h>
-/*
- * This pulls the definition for the BonoboObject (GType)
- */
+#include <spi-common/keymasks.h>
+#include <spi-common/spi-dbus.h>
+#include <spi-common/spi-types.h>
+
+#include <droute/droute.h>
+
#include "deviceeventcontroller.h"
+#include "reentrant-list.h"
-/*
- * Our parent Gtk object type
- */
-#define PARENT_TYPE BONOBO_OBJECT_TYPE
+KeySym ucs2keysym (long ucs);
+long keysym2ucs(KeySym keysym);
-/*
- * A pointer to our parent object class
- */
-static GObjectClass *spi_device_event_controller_parent_class;
+#define CHECK_RELEASE_DELAY 20
+#define BIT(c, x) (c[x/8]&(1<<(x%8)))
+static guint check_release_handler = 0;
+static Accessibility_DeviceEvent pressed_event;
+static SpiDEController *saved_controller;
+static void wait_for_release_event (XEvent *event, SpiDEController *controller);
+
+/* Our parent Gtk object type */
+#define PARENT_TYPE G_TYPE_OBJECT
-static gboolean kbd_registered = FALSE;
+/* A pointer to our parent object class */
+static int spi_error_code = 0;
+static GdkPoint last_mouse_pos_static = {0, 0};
+static GdkPoint *last_mouse_pos = &last_mouse_pos_static;
+static unsigned int mouse_mask_state = 0;
+static unsigned int mouse_button_mask =
+ Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
+static unsigned int key_modifier_mask =
+ Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
+static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
-static Display *display;
+static GQuark spi_dec_private_quark = 0;
+static XModifierKeymap* xmkeymap = NULL;
-static Window root_window;
+static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
typedef enum {
- DEVICE_TYPE_KBD,
- DEVICE_TYPE_MOUSE,
- DEVICE_TYPE_LAST_DEFINED
-} DeviceTypeCategory;
+ SPI_DEVICE_TYPE_KBD,
+ SPI_DEVICE_TYPE_MOUSE,
+ SPI_DEVICE_TYPE_LAST_DEFINED
+} SpiDeviceTypeCategory;
-static gboolean _controller_register_with_devices (SpiDeviceEventController *controller);
-static gboolean _controller_grab_keyboard (SpiDeviceEventController *controller);
+typedef struct {
+ guint ref_count : 30;
+ guint pending_add : 1;
+ guint pending_remove : 1;
-static void _controller_register_device_listener (SpiDeviceEventController *controller,
- const CORBA_Object l,
- const Accessibility_ControllerEventMask *mask,
- DeviceTypeCategory type,
- CORBA_Environment *ev);
+ Accessibility_ControllerEventMask mod_mask;
+ dbus_uint32_t key_val; /* KeyCode */
+} DEControllerGrabMask;
-/*
- * Private methods
- */
+typedef struct {
+ char *bus_name;
+ char *path;
+ SpiDeviceTypeCategory type;
+ gulong types;
+} DEControllerListener;
-static gint
-_compare_corba_objects (gconstpointer p1, gconstpointer p2)
+typedef struct {
+ DEControllerListener listener;
+
+ GSList *keys;
+ Accessibility_ControllerEventMask mask;
+ Accessibility_EventListenerMode *mode;
+} DEControllerKeyListener;
+
+typedef struct {
+ unsigned int last_press_keycode;
+ unsigned int last_release_keycode;
+ struct timeval last_press_time;
+ struct timeval last_release_time;
+ int have_xkb;
+ int xkb_major_extension_opcode;
+ int xkb_base_event_code;
+ int xkb_base_error_code;
+ unsigned int xkb_latch_mask;
+ unsigned int pending_xkb_mod_relatch_mask;
+ XkbDescPtr xkb_desc;
+ KeyCode reserved_keycode;
+ KeySym reserved_keysym;
+ guint reserved_reset_timeout;
+} DEControllerPrivateData;
+
+static void spi_controller_register_with_devices (SpiDEController *controller);
+static gboolean spi_controller_update_key_grabs (SpiDEController *controller,
+ Accessibility_DeviceEvent *recv);
+static gboolean spi_controller_register_device_listener (SpiDEController *controller,
+ DEControllerListener *l);
+static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
+ const XEvent *event);
+static void spi_controller_deregister_device_listener (SpiDEController *controller,
+ DEControllerListener *listener);
+static void spi_deregister_controller_key_listener (SpiDEController *controller,
+ DEControllerKeyListener *key_listener);
+static gboolean spi_controller_notify_mouselisteners (SpiDEController *controller,
+ const Accessibility_DeviceEvent *event);
+
+static gboolean spi_eventtype_seq_contains_event (dbus_uint32_t types,
+ const Accessibility_DeviceEvent *event);
+static gboolean spi_clear_error_state (void);
+static gboolean spi_dec_poll_mouse_moved (gpointer data);
+static gboolean spi_dec_poll_mouse_moving (gpointer data);
+static gboolean spi_dec_poll_mouse_idle (gpointer data);
+
+#define spi_get_display() GDK_DISPLAY()
+
+G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
+
+/* Private methods */
+
+static unsigned int
+keysym_mod_mask (KeySym keysym, KeyCode keycode)
{
- CORBA_Environment ev;
- gint retval;
- retval = !CORBA_Object_is_equivalent ((CORBA_Object) p1, (CORBA_Object) p2, &ev);
+ /* we really should use XKB and look directly at the keymap */
+ /* this is very inelegant */
+ Display *display = spi_get_display ();
+ unsigned int mods_rtn = 0;
+ unsigned int retval = 0;
+ KeySym sym_rtn;
-#ifdef SPI_DEBUG
- fprintf (stderr, "comparing %p to %p; result %d\n",
- p1, p2,
- retval);
+ if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = 0;
+ }
+ else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = ShiftMask;
+ }
+ else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = Mod2Mask;
+ }
+ else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = Mod3Mask;
+ }
+ else if (XkbLookupKeySym (display, keycode,
+ ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = (Mod2Mask | ShiftMask);
+ }
+ else if (XkbLookupKeySym (display, keycode,
+ ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = (Mod3Mask | ShiftMask);
+ }
+ else if (XkbLookupKeySym (display, keycode,
+ ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = (Mod4Mask | ShiftMask);
+ }
+ else
+ retval = 0xFFFF;
+ return retval;
+}
+
+static gboolean
+spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
+{
+#ifdef HAVE_XKB
+ Display *dpy = spi_get_display ();
+ XkbDescPtr desc;
+ if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
+ {
+ fprintf (stderr, "ERROR getting map\n");
+ }
+ XFlush (dpy);
+ XSync (dpy, False);
+ if (desc && desc->map)
+ {
+ gint offset = desc->map->key_sym_map[keycode].offset;
+ desc->map->syms[offset] = keysym;
+ }
+ else
+ {
+ fprintf (stderr, "Error changing key map: empty server structure\n");
+ }
+ XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
+ /**
+ * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
+ * would be far preferable.
+ * HOWEVER it does not seem to work using XFree 4.3.
+ **/
+ /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
+ XFlush (dpy);
+ XSync (dpy, False);
+ XkbFreeKeyboard (desc, 0, TRUE);
+
+ return TRUE;
+#else
+ return FALSE;
#endif
- return retval;
+}
+
+static gboolean
+spi_dec_reset_reserved (gpointer data)
+{
+ DEControllerPrivateData *priv = data;
+ spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
+ priv->reserved_reset_timeout = 0;
+ return FALSE;
+}
+
+static KeyCode
+keycode_for_keysym (SpiDEController *controller, long keysym, unsigned int *modmask)
+{
+ KeyCode keycode = 0;
+ keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
+ if (!keycode)
+ {
+ DEControllerPrivateData *priv = (DEControllerPrivateData *)
+ g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
+ /* if there's no keycode available, fix it */
+ if (spi_dec_replace_map_keysym (priv, priv->reserved_keycode, keysym))
+ {
+ keycode = priv->reserved_keycode;
+ /*
+ * queue a timer to restore the old keycode. Ugly, but required
+ * due to races / asynchronous X delivery.
+ * Long-term fix is to extend the X keymap here instead of replace entries.
+ */
+ priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
+ }
+ *modmask = 0;
+ return keycode;
+ }
+ if (modmask)
+ *modmask = keysym_mod_mask (keysym, keycode);
+ return keycode;
+}
+
+static DEControllerGrabMask *
+spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
+{
+ DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
+
+ memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
+
+ clone->ref_count = 1;
+ clone->pending_add = TRUE;
+ clone->pending_remove = FALSE;
+
+ return clone;
+}
+
+static void
+spi_grab_mask_free (DEControllerGrabMask *grab_mask)
+{
+ g_free (grab_mask);
}
static gint
-_eventmask_compare_value (gconstpointer p1, gconstpointer p2)
+spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
{
- long d;
- if (!p1 || !p2)
- return (gint) (p1?1:(p2?-1:0));
- else
- d = ((long)((Accessibility_ControllerEventMask*)p2)->value) -
- ((long)((Accessibility_ControllerEventMask*)p1)->value);
- return (gint) d;
+ DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
+ DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
+
+ if (p1 == p2)
+ {
+ return 0;
+ }
+ else
+ {
+ return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
+ }
}
static void
-_controller_register_device_listener (SpiDeviceEventController *controller,
- const CORBA_Object l,
- const Accessibility_ControllerEventMask *mask,
- DeviceTypeCategory type,
- CORBA_Environment *ev)
+spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
{
- Accessibility_ControllerEventMask *mask_ptr = NULL;
-
- switch (type) {
- case DEVICE_TYPE_KBD:
- controller->key_listeners = g_list_append (controller->key_listeners,
- CORBA_Object_duplicate (l, ev));
+ DEControllerPrivateData *priv =
+ g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
+#ifdef SPI_XKB_DEBUG
+ if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
+ priv->xkb_latch_mask);
+#endif
+ priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
+}
+
+static void
+spi_dec_clear_unlatch_pending (SpiDEController *controller)
+{
+ DEControllerPrivateData *priv =
+ g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
+ priv->xkb_latch_mask = 0;
+}
+
+static void emit(SpiDEController *controller, const char *name, int first_type, ...)
+{
+ va_list arg;
+
+ va_start(arg, first_type);
+ spi_dbus_emit_valist(controller->bus, SPI_DBUS_PATH_DEC, SPI_DBUS_INTERFACE_DEC, name, first_type, arg);
+ va_end(arg);
+}
+
+static gboolean
+spi_dec_button_update_and_emit (SpiDEController *controller,
+ guint mask_return)
+{
+ Accessibility_DeviceEvent mouse_e;
+ gchar event_name[24];
+ gboolean is_consumed = FALSE;
+
+ if ((mask_return & mouse_button_mask) !=
+ (mouse_mask_state & mouse_button_mask))
+ {
+ int button_number = 0;
+ gboolean is_down = False;
- mask_ptr = (Accessibility_ControllerEventMask *)
- g_list_find_custom (controller->keymask_list, (gpointer) mask,
- _eventmask_compare_value);
- if (mask_ptr)
- ++(mask_ptr->refcount);
- else
- {
- if (mask->refcount != (CORBA_unsigned_short) 1)
- fprintf (stderr, "mask initial refcount is not 1!\n");
- if (mask->value > (CORBA_unsigned_long) 2048)
- fprintf (stderr, "mask value looks invalid (%lu)\n",
- (unsigned long) mask->value);
- else
- fprintf (stderr, "appending mask with val=%lu\n",
- (unsigned long) mask->value);
- mask_ptr = Accessibility_ControllerEventMask__alloc();
- mask_ptr->value = mask->value;
- mask_ptr->refcount = (CORBA_unsigned_short) 1;
- controller->keymask_list = g_list_append (controller->keymask_list,
- (gpointer) mask_ptr);
+ if (!(mask_return & Button1Mask) &&
+ (mouse_mask_state & Button1Mask))
+ {
+ mouse_mask_state &= ~Button1Mask;
+ button_number = 1;
+ }
+ else if ((mask_return & Button1Mask) &&
+ !(mouse_mask_state & Button1Mask))
+ {
+ mouse_mask_state |= Button1Mask;
+ button_number = 1;
+ is_down = True;
+ }
+ else if (!(mask_return & Button2Mask) &&
+ (mouse_mask_state & Button2Mask))
+ {
+ mouse_mask_state &= ~Button2Mask;
+ button_number = 2;
+ }
+ else if ((mask_return & Button2Mask) &&
+ !(mouse_mask_state & Button2Mask))
+ {
+ mouse_mask_state |= Button2Mask;
+ button_number = 2;
+ is_down = True;
+ }
+ else if (!(mask_return & Button3Mask) &&
+ (mouse_mask_state & Button3Mask))
+ {
+ mouse_mask_state &= ~Button3Mask;
+ button_number = 3;
+ }
+ else if ((mask_return & Button3Mask) &&
+ !(mouse_mask_state & Button3Mask))
+ {
+ mouse_mask_state |= Button3Mask;
+ button_number = 3;
+ is_down = True;
+ }
+ else if (!(mask_return & Button4Mask) &&
+ (mouse_mask_state & Button4Mask))
+ {
+ mouse_mask_state &= ~Button4Mask;
+ button_number = 4;
+ }
+ else if ((mask_return & Button4Mask) &&
+ !(mouse_mask_state & Button4Mask))
+ {
+ mouse_mask_state |= Button4Mask;
+ button_number = 4;
+ is_down = True;
+ }
+ else if (!(mask_return & Button5Mask) &&
+ (mouse_mask_state & Button5Mask))
+ {
+ mouse_mask_state &= ~Button5Mask;
+ button_number = 5;
+ }
+ else if ((mask_return & Button5Mask) &&
+ !(mouse_mask_state & Button5Mask))
+ {
+ mouse_mask_state |= Button5Mask;
+ button_number = 5;
+ is_down = True;
+ }
+ if (button_number) {
+#ifdef SPI_DEBUG
+ fprintf (stderr, "Button %d %s\n",
+ button_number, (is_down) ? "Pressed" : "Released");
+#endif
+ snprintf (event_name, 22, "mouse:button:%d%c", button_number,
+ (is_down) ? 'p' : 'r');
+ /* TODO: FIXME distinguish between physical and
+ * logical buttons
+ */
+ mouse_e.type = (is_down) ?
+ Accessibility_BUTTON_PRESSED_EVENT :
+ Accessibility_BUTTON_RELEASED_EVENT;
+ mouse_e.id = button_number;
+ mouse_e.hw_code = button_number;
+ mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
+ mouse_e.timestamp = 0;
+ mouse_e.event_string = "";
+ mouse_e.is_text = FALSE;
+ is_consumed =
+ spi_controller_notify_mouselisteners (controller,
+ &mouse_e);
+ if (!is_consumed)
+ {
+ dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
+ emit(controller, event_name, DBUS_TYPE_UINT32, &x, DBUS_TYPE_UINT32, &y, DBUS_TYPE_INVALID);
+ }
+ else
+ spi_dec_set_unlatch_pending (controller, mask_return);
}
- break;
- case DEVICE_TYPE_MOUSE:
-/* controller->mouse_listeners = g_list_append (controller->mouse_listeners,
- CORBA_Object_duplicate (l, ev));*/
+ return TRUE;
+ }
+ else
+ {
+ return FALSE;
+ }
+}
-/* possibly this interface should NOT be used for mouse events ? */
- break;
- }
+
+static guint
+spi_dec_mouse_check (SpiDEController *controller,
+ int *x, int *y, gboolean *moved)
+{
+ int win_x_return,win_y_return;
+ unsigned int mask_return;
+ Window root_return, child_return;
+ Display *display = spi_get_display ();
+
+ if (display != NULL)
+ XQueryPointer(display, DefaultRootWindow (display),
+ &root_return, &child_return,
+ x, y,
+ &win_x_return, &win_y_return, &mask_return);
+ /*
+ * Since many clients grab the pointer, and X goes an automatic
+ * pointer grab on mouse-down, we often must detect mouse button events
+ * by polling rather than via a button grab.
+ * The while loop (rather than if) is used since it's possible that
+ * multiple buttons have changed state since we last checked.
+ */
+ if (mask_return != mouse_mask_state)
+ {
+ while (spi_dec_button_update_and_emit (controller, mask_return));
+ }
+
+ if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
+ {
+ // TODO: combine these two signals?
+ dbus_uint32_t ix = *x, iy = *y;
+ emit(controller, "mouse_abs", DBUS_TYPE_UINT32, &ix, DBUS_TYPE_UINT32, &iy, DBUS_TYPE_INVALID);
+ ix -= last_mouse_pos->x;
+ iy -= last_mouse_pos->y;
+ emit(controller, "mouse_rel", DBUS_TYPE_UINT32, &ix, DBUS_TYPE_UINT32, &iy, DBUS_TYPE_INVALID);
+ last_mouse_pos->x = *x;
+ last_mouse_pos->y = *y;
+ *moved = True;
+ }
+ else
+ {
+ *moved = False;
+ }
+
+ return mask_return;
}
static void
-_controller_deregister_device_listener (SpiDeviceEventController *controller,
- const CORBA_Object l,
- const Accessibility_ControllerEventMask *mask,
- DeviceTypeCategory type,
- CORBA_Environment *ev)
-{
- Accessibility_ControllerEventMask *mask_ptr;
- GList *list_ptr;
- switch (type) {
- case DEVICE_TYPE_KBD:
- list_ptr = g_list_find_custom (controller->key_listeners, l, _compare_corba_objects);
- if (list_ptr)
- controller->key_listeners = g_list_remove (controller->key_listeners, list_ptr);
- list_ptr = (GList *)
- g_list_find_custom (controller->keymask_list, (gpointer) mask,
- _eventmask_compare_value);
- if (list_ptr)
- {
- mask_ptr = (Accessibility_ControllerEventMask *) list_ptr->data;
- if (mask_ptr)
- --mask_ptr->refcount;
- if (!mask_ptr->refcount)
- {
- controller->keymask_list =
- g_list_remove (controller->keymask_list, mask_ptr);
- ; /* TODO: release any key grabs that are in place for this key mask */
- }
- }
- break;
- case DEVICE_TYPE_MOUSE:
-/* controller->mouse_listeners = g_list_append (controller->mouse_listeners,
- CORBA_Object_duplicate (l, ev));*/
+spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
+ guint current_mask)
+{
+ dbus_uint32_t d1, d2;
-/* possibly this interface should NOT be used for mouse events ? */
- break;
- }
+#ifdef SPI_XKB_DEBUG
+ fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
+ prev_mask, current_mask);
+#endif
+
+ /* set bits for the virtual modifiers like NUMLOCK */
+ if (prev_mask & _numlock_physical_mask)
+ prev_mask |= SPI_KEYMASK_NUMLOCK;
+ if (current_mask & _numlock_physical_mask)
+ current_mask |= SPI_KEYMASK_NUMLOCK;
+
+ d1 = prev_mask & key_modifier_mask;
+ d2 = current_mask & key_modifier_mask;
+ emit(controller, "keyboard_modifiers", DBUS_TYPE_UINT32, &d1, DBUS_TYPE_UINT32, &d2, DBUS_TYPE_INVALID);
}
static gboolean
-_controller_register_with_devices (SpiDeviceEventController *controller)
+spi_dec_poll_mouse_moved (gpointer data)
{
- gboolean retval = FALSE;
+ SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
+ int x, y;
+ gboolean moved;
+ guint mask_return;
- /* calls to device-specific implementations and routines go here */
- /* register with: keyboard hardware code handler */
- /* register with: (translated) keystroke handler */
-#ifdef SPI_DEBUG
- fprintf (stderr, "About to request events on window %ld of display %x\n",
- (unsigned long) GDK_ROOT_WINDOW(), GDK_DISPLAY());
-#endif
- /* We must open a new connection to the server to avoid clashing with the GDK event loop */
- display = XOpenDisplay (getenv ("DISPLAY"));
- root_window = DefaultRootWindow (display);
- XSelectInput (display,
- root_window,
- KeyPressMask | KeyReleaseMask);
- /* register with: mouse hardware device handler? */
- /* register with: mouse event handler */
- return retval;
+ mask_return = spi_dec_mouse_check (controller, &x, &y, &moved);
+
+ if ((mask_return & key_modifier_mask) !=
+ (mouse_mask_state & key_modifier_mask))
+ {
+ spi_dec_emit_modifier_event (controller, mouse_mask_state, mask_return);
+ mouse_mask_state = mask_return;
+ }
+
+ return moved;
}
static gboolean
-_check_key_event (SpiDeviceEventController *controller)
-{
- static gboolean initialized = FALSE;
- static gboolean is_active = FALSE;
- XEvent *x_event = g_new0 (XEvent, 1);
- XKeyEvent *x_key_event;
- KeySym keysym;
- gboolean is_consumed = FALSE;
- char key_name[16];
- int i;
- int n_listeners = g_list_length (controller->key_listeners);
- Accessibility_KeyStroke key_event;
- static CORBA_Environment ev;
-
- if (!initialized)
- {
- initialized = TRUE;
- CORBA_exception_init (&ev);
- }
+spi_dec_poll_mouse_idle (gpointer data)
+{
+ if (! spi_dec_poll_mouse_moved (data))
+ return TRUE;
+ else
+ {
+ g_timeout_add (20, spi_dec_poll_mouse_moving, data);
+ return FALSE;
+ }
+}
+
+static gboolean
+spi_dec_poll_mouse_moving (gpointer data)
+{
+ if (spi_dec_poll_mouse_moved (data))
+ return TRUE;
+ else
+ {
+ g_timeout_add (100, spi_dec_poll_mouse_idle, data);
+ return FALSE;
+ }
+}
- while (XPending(display))
+#ifdef WE_NEED_UGRAB_MOUSE
+static int
+spi_dec_ungrab_mouse (gpointer data)
+{
+ Display *display = spi_get_display ();
+ if (display)
{
- XNextEvent (display, x_event);
- if (XFilterEvent (x_event, None)) continue;
- if (x_event->type == KeyPress)
- {
- x_key_event = (XKeyEvent *)x_event;
- keysym = XLookupKeysym (x_key_event, 0);
- key_event.keyID = (CORBA_long)(keysym);
- key_event.keycode = (CORBA_short) x_key_event->keycode;
- key_event.type = Accessibility_KEY_PRESSED;
- key_event.modifiers = (CORBA_unsigned_short)(x_key_event->state);
-#ifdef SPI_KEYEVENT_DEBUG
- fprintf (stderr,
- "Key %lu pressed (%c), modifiers %d\n",
- (unsigned long) keysym,
- keysym ? (int) keysym : '*',
- (int) x_key_event->state);
+ XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
+ XDefaultRootWindow (spi_get_display ()));
+ }
+ return FALSE;
+}
+#endif
+
+static void
+spi_dec_init_mouse_listener (SpiDEController *dec)
+{
+#ifdef GRAB_BUTTON
+ Display *display = spi_get_display ();
#endif
+ g_timeout_add (100, spi_dec_poll_mouse_idle, dec);
+
+#ifdef GRAB_BUTTON
+ if (display)
+ {
+ if (XGrabButton (display, AnyButton, AnyModifier,
+ gdk_x11_get_default_root_xwindow (),
+ True, ButtonPressMask | ButtonReleaseMask,
+ GrabModeSync, GrabModeAsync, None, None) != Success) {
#ifdef SPI_DEBUG
- fprintf(stderr, "%s%c",
- (x_key_event->state & Mod1Mask)?"Alt-":"",
- ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
- (char) toupper((int) keysym) : (char) tolower((int)keysym));
-#endif /* SPI_DEBUG */
- }
- else
- {
-#ifdef SPI_KEYEVENT_DEBUG
- fprintf (stderr, "other event, type %d\n", (int) x_event->type);
+ fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
+#endif
+ ;
+ }
+ XSync (display, False);
+#ifdef SPI_DEBUG
+ fprintf (stderr, "mouse buttons grabbed\n");
+#endif
+ }
#endif
- }
- /* relay to listeners, and decide whether to consume it or not */
- for (i=0; i<n_listeners && !is_consumed; ++i)
- {
- Accessibility_KeystrokeListener ls;
- ls = (Accessibility_KeystrokeListener)
- g_list_nth_data (controller->key_listeners, i);
- if (!CORBA_Object_is_nil(ls, &ev))
- {
- is_consumed = Accessibility_KeystrokeListener_keyEvent (ls, &key_event, &ev);
- }
- }
- if (is_consumed)
- {
- XAllowEvents (display, SyncKeyboard, CurrentTime);
- }
- else
- {
- XAllowEvents (display, ReplayKeyboard, CurrentTime);
- }
- }
- XUngrabKey (display, AnyKey, AnyModifier, root_window);
- return _controller_grab_keyboard (controller);
}
-static gboolean
-_controller_grab_keyboard (SpiDeviceEventController *controller)
+/**
+ * Eventually we can use this to make the marshalling of mask types
+ * more sane, but for now we just use this to detect
+ * the use of 'virtual' masks such as numlock and convert them to
+ * system-specific mask values (i.e. ModMask).
+ *
+ **/
+static Accessibility_ControllerEventMask
+spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
{
- GList *maskList = controller->keymask_list;
- int i;
- int last_mask;
- last_mask = g_list_length (maskList);
+ Accessibility_ControllerEventMask tmp_mask;
+ gboolean has_numlock;
-/*
- * masks known to work with default RH 7.1:
- * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
- * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
- * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
- * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
- *
- * ControlMask grabs are broken, must be in use already
- */
-
- for (i=0; i < last_mask; ++i)
- {
- Accessibility_ControllerEventMask *mask
- = (Accessibility_ControllerEventMask *)g_list_nth_data (maskList, i);
- unsigned long maskVal = 0xFFFFFFFF;
- if (mask) maskVal = (unsigned long) mask->value;
-#ifdef SPI_KEYEVENT_DEBUG
- fprintf (stderr, "mask=%lx\n", maskVal);
-#endif
- if (!(maskVal & ControlMask))
- {
- XGrabKey (display,
- AnyKey,
- maskVal,
- root_window,
- True,
- GrabModeAsync,
- GrabModeSync);
- /* TODO: check call for errors and return FALSE if error occurs */
- } else {
- return FALSE; /* can't do control key yet */
- }
- }
- return TRUE;
+ has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
+ tmp_mask = mask;
+ if (has_numlock)
+ {
+ tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
+ tmp_mask |= _numlock_physical_mask;
+ }
+
+ return tmp_mask;
}
-/*
- * Implemented GObject::finalize
- */
-static void
-spi_device_event_controller_object_finalize (GObject *object)
+static DEControllerKeyListener *
+spi_dec_key_listener_new (const char *bus_name,
+ const char *path,
+ GSList *keys,
+ const Accessibility_ControllerEventMask mask,
+ const dbus_uint32_t types,
+ const Accessibility_EventListenerMode *mode)
{
+ DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
+ key_listener->listener.bus_name = g_strdup(bus_name);
+ key_listener->listener.path = g_strdup(path);
+ key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
+ key_listener->keys = keys;
+ key_listener->mask = spi_dec_translate_mask (mask);
+ key_listener->listener.types = types;
+ if (mode)
+ {
+ key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
+ memcpy(key_listener->mode, mode, sizeof(*mode));
+ }
+ else
+ key_listener->mode = NULL;
#ifdef SPI_DEBUG
- fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
+ g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
+ (unsigned int) key_listener->mask,
+ (int) (mode ? mode->global : 0),
+ (void *) key_listener->keys,
+ (int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
#endif
- spi_device_event_controller_parent_class->finalize (object);
+
+ return key_listener;
}
-/*
- * CORBA Accessibility::DeviceEventController::registerKeystrokeListener
- * method implementation
- */
-static void
-impl_register_keystroke_listener (PortableServer_Servant servant,
- const Accessibility_KeystrokeListener l,
- const Accessibility_KeySet *keys,
- const Accessibility_ControllerEventMask *mask,
- const Accessibility_KeyEventTypeSeq *type,
- const CORBA_boolean is_synchronous,
- CORBA_Environment *ev)
-{
- SpiDeviceEventController *controller = SPI_DEVICE_EVENT_CONTROLLER (
- bonobo_object_from_servant (servant));
-#ifdef SPI_DEBUG
- fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
- (void *) l, (unsigned long) mask->value);
-#endif
- /* TODO: change this to an enum, indicating if event can be consumed */
- if (is_synchronous)
- _controller_register_device_listener(controller, l, mask, DEVICE_TYPE_KBD, ev);
- else
- ; /* register with toolkit instead */
+static DEControllerListener *
+spi_dec_listener_new (const char *bus_name,
+ const char *path,
+ dbus_uint32_t types)
+{
+ DEControllerListener *listener = g_new0 (DEControllerListener, 1);
+ listener->bus_name = g_strdup(bus_name);
+ listener->path = g_strdup(path);
+ listener->type = SPI_DEVICE_TYPE_MOUSE;
+ listener->types = types;
+ return listener;
}
-/*
- * CORBA Accessibility::DeviceEventController::deregisterKeystrokeListener
- * method implementation
- */
-static void
-impl_deregister_keystroke_listener (PortableServer_Servant servant,
- const Accessibility_KeystrokeListener l,
- const Accessibility_KeySet *keys,
- const Accessibility_ControllerEventMask *mask,
- const Accessibility_KeyEventTypeSeq *type,
- const CORBA_boolean is_synchronous,
- CORBA_Environment *ev)
-{
- SpiDeviceEventController *controller = SPI_DEVICE_EVENT_CONTROLLER (
- bonobo_object_from_servant (servant));
-#ifdef SPI_DEBUG
- fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
- (void *) l, (unsigned long) mask->value);
-#endif
- _controller_deregister_device_listener(controller, l, mask, DEVICE_TYPE_KBD, ev);
+
+static DEControllerListener *
+spi_listener_clone (DEControllerListener *listener)
+{
+ DEControllerListener *clone = g_new0 (DEControllerListener, 1);
+ clone->bus_name = g_strdup (listener->bus_name);
+ clone->path = g_strdup (listener->path);
+ clone->type = listener->type;
+ clone->types = listener->types;
+ return clone;
+}
+
+static GSList *keylist_clone (GSList *s)
+{
+ GSList *d = NULL;
+ GSList *l;
+
+ for (l = s; l; l = g_slist_next(l))
+ {
+ Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
+ if (kd)
+ {
+ Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
+ kd->keycode = kds->keycode;
+ kd->keysym = kds->keysym;
+ kd->keystring = g_strdup(kds->keystring);
+ d = g_slist_append(d, kd);
+ }
+ }
+ return d;
+}
+
+static DEControllerKeyListener *
+spi_key_listener_clone (DEControllerKeyListener *key_listener)
+{
+ DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
+ clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
+ clone->listener.path = g_strdup (key_listener->listener.path);
+ clone->listener.type = SPI_DEVICE_TYPE_KBD;
+ clone->keys = keylist_clone (key_listener->keys);
+ clone->mask = key_listener->mask;
+ clone->listener.types = key_listener->listener.types;
+ if (key_listener->mode)
+ {
+ clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
+ if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
+ }
+ else
+ clone->mode = NULL;
+ return clone;
+}
+
+static void keylist_free(GSList *keys)
+{
+ GSList *l;
+
+ for (l = keys; l; l = g_slist_next(l))
+ {
+ Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
+ g_free(kd->keystring);
+ g_free(kd);
+ }
+ g_slist_free (keys);
}
-/*
- * CORBA Accessibility::DeviceEventController::registerMouseListener
- * method implementation
- */
-/*
static void
-impl_register_mouse_listener (PortableServer_Servant servant,
- const Accessibility_MouseListener *l,
- CORBA_Environment *ev)
+spi_key_listener_data_free (DEControllerKeyListener *key_listener)
{
- SpiDeviceEventController *controller = SPI_DEVICE_EVENT_CONTROLLER (
- bonobo_object_from_servant (servant));
-#ifdef SPI_DEBUG
- fprintf (stderr, "registering mouse listener %p\n", l);
-#endif
- _controller_register_device_listener(controller, l, mask, DEVICE_TYPE_MOUSE, ev);
+ keylist_free(key_listener->keys);
+ if (key_listener->mode) g_free(key_listener->mode);
+ g_free (key_listener);
}
-*/
-static KeyCode
-keycode_for_keysym (long keysym)
+static void
+spi_key_listener_clone_free (DEControllerKeyListener *clone)
{
- return XKeysymToKeycode (display, (KeySym) keysym);
+ spi_key_listener_data_free (clone);
}
-/*
- * CORBA Accessibility::DeviceEventController::registerKeystrokeListener
- * method implementation
- */
static void
-impl_generate_key_event (PortableServer_Servant servant,
- const CORBA_long keycode,
- const CORBA_long synth_type,
- CORBA_Environment *ev)
+spi_listener_clone_free (DEControllerListener *clone)
{
- long key_synth_code;
-#ifdef SPI_DEBUG
- fprintf (stderr, "synthesizing keystroke %ld\n", (long) keycode);
-#endif
- /* TODO: hide/wrap/remove X dependency */
+ g_free (clone->path);
+ g_free (clone->bus_name);
+ g_free (clone);
+}
- /* TODO: be accessX-savvy so that keyrelease occurs after sufficient timeout */
-
- /*
- * TODO: when initializing, query for XTest extension before using,
- * and fall back to XSendEvent() if XTest is not available.
- */
-
- switch (synth_type)
- {
- case Accessibility_KEY_PRESS:
- XTestFakeKeyEvent (GDK_DISPLAY(), (unsigned int) keycode, True, CurrentTime);
- break;
- case Accessibility_KEY_PRESSRELEASE:
- XTestFakeKeyEvent (GDK_DISPLAY(), (unsigned int) keycode, True, CurrentTime);
- case Accessibility_KEY_RELEASE:
- XTestFakeKeyEvent (GDK_DISPLAY(), (unsigned int) keycode, False, CurrentTime);
- break;
- case Accessibility_KEY_SYM:
- key_synth_code = keycode_for_keysym (keycode);
- XTestFakeKeyEvent (GDK_DISPLAY(), (unsigned int) key_synth_code, True, CurrentTime);
- XTestFakeKeyEvent (GDK_DISPLAY(), (unsigned int) key_synth_code, False, CurrentTime);
- break;
- }
+static void
+spi_dec_listener_free (DEControllerListener *listener)
+{
+ g_free (listener->bus_name);
+ g_free (listener->path);
+ if (listener->type == SPI_DEVICE_TYPE_KBD)
+ spi_key_listener_data_free ((DEControllerKeyListener *) listener);
}
-/*
- * CORBA Accessibility::DeviceEventController::generateMouseEvent
- * method implementation
- */
static void
-impl_generate_mouse_event (PortableServer_Servant servant,
- const CORBA_long x,
- const CORBA_long y,
- const CORBA_char * eventName,
- CORBA_Environment *ev)
+_register_keygrab (SpiDEController *controller,
+ DEControllerGrabMask *grab_mask)
{
-#ifdef SPI_DEBUG
- fprintf (stderr, "generating mouse %s event at %ld, %ld\n", eventName, x, y);
-#endif
+ GList *l;
+
+ l = g_list_find_custom (controller->keygrabs_list, grab_mask,
+ spi_grab_mask_compare_values);
+ if (l)
+ {
+ DEControllerGrabMask *cur_mask = l->data;
+
+ cur_mask->ref_count++;
+ if (cur_mask->pending_remove)
+ {
+ cur_mask->pending_remove = FALSE;
+ }
+ }
+ else
+ {
+ controller->keygrabs_list =
+ g_list_prepend (controller->keygrabs_list,
+ spi_grab_mask_clone (grab_mask));
+ }
}
static void
-spi_device_event_controller_class_init (SpiDeviceEventControllerClass *klass)
+_deregister_keygrab (SpiDEController *controller,
+ DEControllerGrabMask *grab_mask)
{
- GObjectClass * object_class = (GObjectClass *) klass;
- POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
- spi_device_event_controller_parent_class = g_type_class_ref (BONOBO_OBJECT_TYPE);
+ GList *l;
+
+ l = g_list_find_custom (controller->keygrabs_list, grab_mask,
+ spi_grab_mask_compare_values);
- object_class->finalize = spi_device_event_controller_object_finalize;
+ if (l)
+ {
+ DEControllerGrabMask *cur_mask = l->data;
- epv->registerKeystrokeListener = impl_register_keystroke_listener;
- epv->deregisterKeystrokeListener = impl_deregister_keystroke_listener;
-/* epv->registerMouseListener = impl_register_mouse_listener; */
- epv->generateKeyEvent = impl_generate_key_event;
- epv->generateMouseEvent = impl_generate_mouse_event;
- klass->check_key_event = _check_key_event;
+ cur_mask->ref_count--;
+ if (cur_mask->ref_count <= 0)
+ {
+ cur_mask->pending_remove = TRUE;
+ }
+ }
}
static void
-spi_device_event_controller_init (SpiDeviceEventController *device_event_controller)
+handle_keygrab (SpiDEController *controller,
+ DEControllerKeyListener *key_listener,
+ void (*process_cb) (SpiDEController *controller,
+ DEControllerGrabMask *grab_mask))
{
- device_event_controller->key_listeners = NULL;
- device_event_controller->mouse_listeners = NULL;
- device_event_controller->keymask_list = NULL;
- kbd_registered = _controller_register_with_devices (device_event_controller);
-}
-
-gboolean spi_device_event_controller_check_key_event (SpiDeviceEventController *controller)
-{
- SpiDeviceEventControllerClass *klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
- if (klass->check_key_event)
- return (klass->check_key_event) (controller);
-}
-
-GType
-spi_device_event_controller_get_type (void)
-{
- static GType type = 0;
-
- if (!type) {
- static const GTypeInfo tinfo = {
- sizeof (SpiDeviceEventControllerClass),
- (GBaseInitFunc) NULL,
- (GBaseFinalizeFunc) NULL,
- (GClassInitFunc) spi_device_event_controller_class_init,
- (GClassFinalizeFunc) NULL,
- NULL, /* class data */
- sizeof (SpiDeviceEventController),
- 0, /* n preallocs */
- (GInstanceInitFunc) spi_device_event_controller_init,
- NULL /* value table */
- };
- /*
- * Here we use bonobo_type_unique instead of
- * gtk_type_unique, this auto-generates a load of
- * CORBA structures for us. All derived types must
- * use bonobo_type_unique.
- */
- type = bonobo_type_unique (
- PARENT_TYPE,
- POA_Accessibility_DeviceEventController__init,
- NULL,
- G_STRUCT_OFFSET (SpiDeviceEventControllerClass, epv),
- &tinfo,
- "SpiDeviceEventController");
- }
+ DEControllerGrabMask grab_mask = { 0 };
- return type;
+ grab_mask.mod_mask = key_listener->mask;
+ if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
+ {
+ grab_mask.key_val = AnyKey;
+#ifdef SPI_DEBUG
+ fprintf (stderr, "AnyKey grab!");
+#endif
+ process_cb (controller, &grab_mask);
+ }
+ else
+ {
+ GSList *l;
+
+ for (l = key_listener->keys; l; l = g_slist_next(l))
+ {
+ Accessibility_KeyDefinition *keydef = l->data;
+ long int key_val = keydef->keysym;
+ /* X Grabs require keycodes, not keysyms */
+ if (keydef->keystring && keydef->keystring[0])
+ {
+ key_val = XStringToKeysym(keydef->keystring);
+ }
+ if (key_val > 0)
+ {
+ key_val = XKeysymToKeycode (spi_get_display (), (KeySym) key_val);
+ }
+ else
+ {
+ key_val = keydef->keycode;
+ }
+ grab_mask.key_val = key_val;
+ process_cb (controller, &grab_mask);
+ }
+ }
}
+static gboolean
+spi_controller_register_global_keygrabs (SpiDEController *controller,
+ DEControllerKeyListener *key_listener)
+{
+ handle_keygrab (controller, key_listener, _register_keygrab);
+ if (controller->xevie_display == NULL)
+ return spi_controller_update_key_grabs (controller, NULL);
+ else
+ return TRUE;
+}
+
+static void
+spi_controller_deregister_global_keygrabs (SpiDEController *controller,
+ DEControllerKeyListener *key_listener)
+{
+ handle_keygrab (controller, key_listener, _deregister_keygrab);
+ if (controller->xevie_display == NULL)
+ spi_controller_update_key_grabs (controller, NULL);
+}
+
+static gboolean
+spi_controller_register_device_listener (SpiDEController *controller,
+ DEControllerListener *listener)
+{
+ DEControllerKeyListener *key_listener;
+
+ switch (listener->type) {
+ case SPI_DEVICE_TYPE_KBD:
+ key_listener = (DEControllerKeyListener *) listener;
+
+ controller->key_listeners = g_list_prepend (controller->key_listeners,
+ key_listener);
+ spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
+ if (key_listener->mode->global)
+ {
+ return spi_controller_register_global_keygrabs (controller, key_listener);
+ }
+ else
+ return TRUE;
+ break;
+ case SPI_DEVICE_TYPE_MOUSE:
+ controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
+ spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
+ break;
+ default:
+ break;
+ }
+ return FALSE;
+}
+
+static gboolean
+Accessibility_DeviceEventListener_notifyEvent(SpiDEController *controller,
+ SpiRegistry *registry,
+ DEControllerListener *listener,
+ const Accessibility_DeviceEvent *key_event)
+{
+ DBusMessage *message = dbus_message_new_method_call(listener->bus_name, listener->path, "org.freedesktop.atspi.Registry", "notifyEvent");
+ DBusError error;
+ dbus_bool_t consumed = FALSE;
+
+ dbus_error_init(&error);
+ if (spi_dbus_marshal_deviceEvent(message, key_event))
+ {
+ // TODO: Evaluate performance: perhaps rework this whole architecture
+ // to avoid blocking calls
+ DBusMessage *reply = dbus_connection_send_with_reply_and_block(controller->bus, message, 1000, &error);
+ if (reply)
+ {
+ DBusError error;
+ dbus_error_init(&error);
+ dbus_message_get_args(reply, &error, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
+ dbus_message_unref(reply);
+ }
+ }
+ dbus_message_unref(message);
+ return consumed;
+}
+
+static gboolean
+spi_controller_notify_mouselisteners (SpiDEController *controller,
+ const Accessibility_DeviceEvent *event)
+{
+ GList *l;
+ GSList *notify = NULL, *l2;
+ GList **listeners = &controller->mouse_listeners;
+ gboolean is_consumed;
+#ifdef SPI_KEYEVENT_DEBUG
+ gboolean found = FALSE;
+#endif
+ if (!listeners)
+ {
+ return FALSE;
+ }
+
+ for (l = *listeners; l; l = l->next)
+ {
+ DEControllerListener *listener = l->data;
+
+ if (spi_eventtype_seq_contains_event (listener->types, event))
+ {
+ /* we clone (don't dup) the listener, to avoid refcount inc. */
+ notify = g_slist_prepend (notify,
+ spi_listener_clone (listener));
+#ifdef SPI_KEYEVENT_DEBUG
+ found = TRUE;
+#endif
+ }
+ }
+
+#ifdef SPI_KEYEVENT_DEBUG
+ if (!found)
+ {
+ g_print ("no match for event\n");
+ }
+#endif
+
+ is_consumed = FALSE;
+ for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
+ {
+ DEControllerListener *listener = l2->data;
+
+ is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller, controller->registry, listener, event);
+
+ spi_listener_clone_free ((DEControllerListener *) l2->data);
+ }
+
+ for (; l2; l2 = l2->next)
+ {
+ DEControllerListener *listener = l2->data;
+ spi_listener_clone_free (listener);
+ /* clone doesn't have its own ref, so don't use spi_device_listener_free */
+ }
+
+ g_slist_free (notify);
+
+#ifdef SPI_DEBUG
+ if (is_consumed) g_message ("consumed\n");
+#endif
+ return is_consumed;
+}
+
+static void
+spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
+ XEvent *xevent)
+{
+ Accessibility_DeviceEvent mouse_e;
+ gchar event_name[24];
+ gboolean is_consumed = FALSE;
+ gboolean xkb_mod_unlatch_occurred;
+ XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
+ dbus_uint32_t ix, iy;
+
+ int button = xbutton_event->button;
+
+ unsigned int mouse_button_state = xbutton_event->state;
+
+ switch (button)
+ {
+ case 1:
+ mouse_button_state |= Button1Mask;
+ break;
+ case 2:
+ mouse_button_state |= Button2Mask;
+ break;
+ case 3:
+ mouse_button_state |= Button3Mask;
+ break;
+ case 4:
+ mouse_button_state |= Button4Mask;
+ break;
+ case 5:
+ mouse_button_state |= Button5Mask;
+ break;
+ }
+
+ last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
+ last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
+
+#ifdef SPI_DEBUG
+ fprintf (stderr, "mouse button %d %s (%x)\n",
+ xbutton_event->button,
+ (xevent->type == ButtonPress) ? "Press" : "Release",
+ mouse_button_state);
+#endif
+ snprintf (event_name, 22, "mouse:button_%d%c", button,
+ (xevent->type == ButtonPress) ? 'p' : 'r');
+
+ /* TODO: FIXME distinguish between physical and logical buttons */
+ mouse_e.type = (xevent->type == ButtonPress) ?
+ Accessibility_BUTTON_PRESSED_EVENT :
+ Accessibility_BUTTON_RELEASED_EVENT;
+ mouse_e.id = button;
+ mouse_e.hw_code = button;
+ mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
+ mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
+ mouse_e.event_string = "";
+ mouse_e.is_text = FALSE;
+ if ((mouse_button_state & mouse_button_mask) !=
+ (mouse_mask_state & mouse_button_mask))
+ {
+ if ((mouse_mask_state & key_modifier_mask) !=
+ (mouse_button_state & key_modifier_mask))
+ spi_dec_emit_modifier_event (controller,
+ mouse_mask_state, mouse_button_state);
+ mouse_mask_state = mouse_button_state;
+ is_consumed =
+ spi_controller_notify_mouselisteners (controller, &mouse_e);
+ ix = last_mouse_pos->x;
+ iy = last_mouse_pos->y;
+ /* TODO - Work out which part of the spec this emit is fulfilling */
+ //emit(controller, event_name, DBUS_TYPE_UINT32, &ix, DBUS_TYPE_UINT32, &iy, DBUS_TYPE_INVALID);
+ }
+
+ xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
+ xevent->type == ButtonRelease);
+
+ /* if client wants to consume this event, and XKB latch state was
+ * unset by this button event, we reset it
+ */
+ if (is_consumed && xkb_mod_unlatch_occurred)
+ spi_dec_set_unlatch_pending (controller, mouse_mask_state);
+
+ XAllowEvents (spi_get_display (),
+ (is_consumed) ? SyncPointer : ReplayPointer,
+ CurrentTime);
+}
+
+static GdkFilterReturn
+global_filter_fn (GdkXEvent *gdk_xevent, GdkEvent *event, gpointer data)
+{
+ XEvent *xevent = gdk_xevent;
+ SpiDEController *controller;
+ DEControllerPrivateData *priv;
+ Display *display = spi_get_display ();
+ controller = SPI_DEVICE_EVENT_CONTROLLER (data);
+ priv = (DEControllerPrivateData *)
+ g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
+
+ if (xevent->type == MappingNotify)
+ xmkeymap = NULL;
+
+ if (xevent->type == KeyPress || xevent->type == KeyRelease)
+ {
+ if (controller->xevie_display == NULL)
+ {
+ gboolean is_consumed;
+
+ is_consumed =
+ spi_device_event_controller_forward_key_event (controller, xevent);
+
+ if (is_consumed)
+ {
+ int n_events;
+ int i;
+ XEvent next_event;
+ n_events = XPending (display);
+
+#ifdef SPI_KEYEVENT_DEBUG
+ g_print ("Number of events pending: %d\n", n_events);
+#endif
+ for (i = 0; i < n_events; i++)
+ {
+ XNextEvent (display, &next_event);
+ if (next_event.type != KeyPress &&
+ next_event.type != KeyRelease)
+ g_warning ("Unexpected event type %d in queue", next_event.type);
+ }
+
+ XAllowEvents (display, AsyncKeyboard, CurrentTime);
+ if (n_events)
+ XUngrabKeyboard (display, CurrentTime);
+ }
+ else
+ {
+ if (xevent->type == KeyPress)
+ wait_for_release_event (xevent, controller);
+ XAllowEvents (display, ReplayKeyboard, CurrentTime);
+ }
+ }
+
+ return GDK_FILTER_CONTINUE;
+ }
+ if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
+ {
+ spi_device_event_controller_forward_mouse_event (controller, xevent);
+ }
+ if (xevent->type == priv->xkb_base_event_code)
+ {
+ XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
+ /* ugly but probably necessary...*/
+ XSynchronize (display, TRUE);
+
+ if (xkb_ev->xkb_type == XkbStateNotify)
+ {
+ XkbStateNotifyEvent *xkb_snev =
+ (XkbStateNotifyEvent *) xkb_ev;
+ /* check the mouse, to catch mouse events grabbed by
+ * another client; in case we should revert this XKB delatch
+ */
+ if (!priv->pending_xkb_mod_relatch_mask)
+ {
+ int x, y;
+ gboolean moved;
+ spi_dec_mouse_check (controller, &x, &y, &moved);
+ }
+ /* we check again, since the previous call may have
+ changed this flag */
+ if (priv->pending_xkb_mod_relatch_mask)
+ {
+ unsigned int feedback_mask;
+#ifdef SPI_XKB_DEBUG
+ fprintf (stderr, "relatching %x\n",
+ priv->pending_xkb_mod_relatch_mask);
+#endif
+ /* temporarily turn off the latch bell, if it's on */
+ XkbGetControls (display,
+ XkbAccessXFeedbackMask,
+ priv->xkb_desc);
+ feedback_mask = priv->xkb_desc->ctrls->ax_options;
+ if (feedback_mask & XkbAX_StickyKeysFBMask)
+ {
+ XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
+ 0, False};
+ priv->xkb_desc->ctrls->ax_options
+ &= ~(XkbAX_StickyKeysFBMask);
+ XkbChangeControls (display, priv->xkb_desc, &changes);
+ }
+ /* TODO: account for lock as well as latch */
+ XkbLatchModifiers (display,
+ XkbUseCoreKbd,
+ priv->pending_xkb_mod_relatch_mask,
+ priv->pending_xkb_mod_relatch_mask);
+ if (feedback_mask & XkbAX_StickyKeysFBMask)
+ {
+ XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
+ 0, False};
+ priv->xkb_desc->ctrls->ax_options = feedback_mask;
+ XkbChangeControls (display, priv->xkb_desc, &changes);
+ }
+#ifdef SPI_XKB_DEBUG
+ fprintf (stderr, "relatched %x\n",
+ priv->pending_xkb_mod_relatch_mask);
+#endif
+ priv->pending_xkb_mod_relatch_mask = 0;
+ }
+ else
+ {
+ priv->xkb_latch_mask = xkb_snev->latched_mods;
+ }
+ }
+ XSynchronize (display, FALSE);
+ }
+
+ return GDK_FILTER_CONTINUE;
+}
+
+static int
+_spi_controller_device_error_handler (Display *display, XErrorEvent *error)
+{
+ if (error->error_code == BadAccess)
+ {
+ g_message ("Could not complete key grab: grab already in use.\n");
+ spi_error_code = BadAccess;
+ return 0;
+ }
+ else
+ {
+ return (*x_default_error_handler) (display, error);
+ }
+}
+
+static void
+spi_controller_register_with_devices (SpiDEController *controller)
+{
+ DEControllerPrivateData *priv;
+ int event_base, error_base, major_version, minor_version;
+
+ priv = (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
+ if (XTestQueryExtension (spi_get_display(), &event_base, &error_base, &major_version, &minor_version))
+ {
+ XTestGrabControl (spi_get_display (), True);
+ }
+
+ /* calls to device-specific implementations and routines go here */
+ /* register with: keyboard hardware code handler */
+ /* register with: (translated) keystroke handler */
+
+ priv->have_xkb = XkbQueryExtension (spi_get_display (),
+ &priv->xkb_major_extension_opcode,
+ &priv->xkb_base_event_code,
+ &priv->xkb_base_error_code, NULL, NULL);
+ if (priv->have_xkb)
+ {
+ gint i;
+ guint64 reserved = 0;
+ priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
+ XkbSelectEvents (spi_get_display (),
+ XkbUseCoreKbd,
+ XkbStateNotifyMask, XkbStateNotifyMask);
+ _numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
+ XK_Num_Lock);
+ for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
+ {
+ if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
+ {
+ if (XKeycodeToKeysym (spi_get_display (), i, 0) != 0)
+ {
+ /* don't use this one if there's a grab client! */
+ gdk_error_trap_push ();
+ XGrabKey (spi_get_display (), i, 0,
+ gdk_x11_get_default_root_xwindow (),
+ TRUE,
+ GrabModeSync, GrabModeSync);
+ XSync (spi_get_display (), TRUE);
+ XUngrabKey (spi_get_display (), i, 0,
+ gdk_x11_get_default_root_xwindow ());
+ if (!gdk_error_trap_pop ())
+ {
+ reserved = i;
+ break;
+ }
+ }
+ }
+ }
+ if (reserved)
+ {
+ priv->reserved_keycode = reserved;
+ priv->reserved_keysym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
+ }
+ else
+ {
+ priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
+ priv->reserved_keysym = XK_numbersign;
+ }
+#ifdef SPI_RESERVED_DEBUG
+ unsigned sym = 0;
+ sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
+ fprintf (stderr, "%x\n", sym);
+ fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
+ reserved,
+ XKeysymToString (XKeycodeToKeysym (spi_get_display (),
+ reserved, 0)));
+#endif
+ }
+
+ gdk_window_add_filter (NULL, global_filter_fn, controller);
+
+ gdk_window_set_events (gdk_get_default_root_window (),
+ GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);
+
+ x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
+}
+
+static gboolean
+spi_key_set_contains_key (GSList *key_set,
+ const Accessibility_DeviceEvent *key_event)
+{
+ gint i;
+ gint len;
+ GSList *l;
+
+ if (!key_set)
+ {
+ g_print ("null key set!");
+ return TRUE;
+ }
+
+ len = g_slist_length (key_set);
+
+ if (len == 0) /* special case, means "all keys/any key" */
+ {
+#ifdef SPI_DEBUG
+ g_print ("anykey\n");
+#endif
+ return TRUE;
+ }
+
+ for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
+ {
+ Accessibility_KeyDefinition *kd = l->data;
+#ifdef SPI_KEYEVENT_DEBUG
+ g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
+ i,
+ (int) kd->keysym,
+ (int) kd->keycode,
+ (int) key_event->id,
+ (int) key_event->hw_code,
+ key_event->event_string);
+#endif
+ if (kd->keysym == (dbus_uint32_t) key_event->id)
+ {
+ return TRUE;
+ }
+ if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
+ {
+ return TRUE;
+ }
+ if (key_event->event_string && key_event->event_string[0] &&
+ !strcmp (kd->keystring, key_event->event_string))
+ {
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+static gboolean
+spi_eventtype_seq_contains_event (dbus_uint32_t types,
+ const Accessibility_DeviceEvent *event)
+{
+ if (types == 0) /* special case, means "all events/any event" */
+ {
+ return TRUE;
+ }
+
+ return (types & (1 << event->type));
+}
+
+static gboolean
+spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
+ DEControllerKeyListener *listener,
+ dbus_bool_t is_system_global)
+{
+ if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
+ spi_key_set_contains_key (listener->keys, key_event) &&
+ spi_eventtype_seq_contains_event (listener->listener.types, key_event) &&
+ (is_system_global == listener->mode->global))
+ {
+ return TRUE;
+ }
+ else
+ {
+ return FALSE;
+ }
+}
+
+static gboolean
+spi_controller_notify_keylisteners (SpiDEController *controller,
+ Accessibility_DeviceEvent *key_event,
+ dbus_bool_t is_system_global)
+{
+ GList *l;
+ GSList *notify = NULL, *l2;
+ GList **key_listeners = &controller->key_listeners;
+ gboolean is_consumed;
+
+ if (!key_listeners)
+ {
+ return FALSE;
+ }
+
+ /* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
+ if (key_event->modifiers & _numlock_physical_mask)
+ key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
+
+ for (l = *key_listeners; l; l = l->next)
+ {
+ DEControllerKeyListener *key_listener = l->data;
+
+ if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
+ {
+ /* we clone (don't dup) the listener, to avoid refcount inc. */
+ notify = g_slist_prepend (notify,
+ spi_key_listener_clone (key_listener));
+ }
+ }
+
+#ifdef SPI_KEYEVENT_DEBUG
+ if (!notify)
+ {
+ g_print ("no match for event\n");
+ }
+#endif
+
+ is_consumed = FALSE;
+ for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
+ {
+ DEControllerKeyListener *key_listener = l2->data;
+
+ is_consumed = Accessibility_DeviceEventListener_notifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
+ key_listener->mode->preemptive;
+
+ spi_key_listener_clone_free (key_listener);
+ }
+
+ for (; l2; l2 = l2->next)
+ {
+ DEControllerKeyListener *key_listener = l2->data;
+ spi_key_listener_clone_free (key_listener);
+ /* clone doesn't have its own ref, so don't use spi_dec_listener_free */
+ }
+
+ g_slist_free (notify);
+
+#ifdef SPI_DEBUG
+ if (is_consumed) g_message ("consumed\n");
+#endif
+ return is_consumed;
+}
+
+static gboolean
+spi_clear_error_state (void)
+{
+ gboolean retval = spi_error_code != 0;
+ spi_error_code = 0;
+ return retval;
+}
+
+static Accessibility_DeviceEvent
+spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
+{
+ Accessibility_DeviceEvent key_event;
+ KeySym keysym;
+ const int cbuf_bytes = 20;
+ char cbuf [21];
+ int nbytes;
+
+ nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
+ key_event.id = (dbus_int32_t)(keysym);
+ key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
+ if (((XEvent *) x_key_event)->type == KeyPress)
+ {
+ key_event.type = Accessibility_KEY_PRESSED_EVENT;
+ }
+ else
+ {
+ key_event.type = Accessibility_KEY_RELEASED_EVENT;
+ }
+ key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
+ key_event.is_text = FALSE;
+ switch (keysym)
+ {
+ case ' ':
+ key_event.event_string = g_strdup ("space");
+ break;
+ case XK_Tab:
+ key_event.event_string = g_strdup ("Tab");
+ break;
+ case XK_BackSpace:
+ key_event.event_string = g_strdup ("Backspace");
+ break;
+ case XK_Return:
+ key_event.event_string = g_strdup ("Return");
+ break;
+ case XK_Home:
+ key_event.event_string = g_strdup ("Home");
+ break;
+ case XK_Page_Down:
+ key_event.event_string = g_strdup ("Page_Down");
+ break;
+ case XK_Page_Up:
+ key_event.event_string = g_strdup ("Page_Up");
+ break;
+ case XK_F1:
+ key_event.event_string = g_strdup ("F1");
+ break;
+ case XK_F2:
+ key_event.event_string = g_strdup ("F2");
+ break;
+ case XK_F3:
+ key_event.event_string = g_strdup ("F3");
+ break;
+ case XK_F4:
+ key_event.event_string = g_strdup ("F4");
+ break;
+ case XK_F5:
+ key_event.event_string = g_strdup ("F5");
+ break;
+ case XK_F6:
+ key_event.event_string = g_strdup ("F6");
+ break;
+ case XK_F7:
+ key_event.event_string = g_strdup ("F7");
+ break;
+ case XK_F8:
+ key_event.event_string = g_strdup ("F8");
+ break;
+ case XK_F9:
+ key_event.event_string = g_strdup ("F9");
+ break;
+ case XK_F10:
+ key_event.event_string = g_strdup ("F10");
+ break;
+ case XK_F11:
+ key_event.event_string = g_strdup ("F11");
+ break;
+ case XK_F12:
+ key_event.event_string = g_strdup ("F12");
+ break;
+ case XK_End:
+ key_event.event_string = g_strdup ("End");
+ break;
+ case XK_Escape:
+ key_event.event_string = g_strdup ("Escape");
+ break;
+ case XK_Up:
+ key_event.event_string = g_strdup ("Up");
+ break;
+ case XK_Down:
+ key_event.event_string = g_strdup ("Down");
+ break;
+ case XK_Left:
+ key_event.event_string = g_strdup ("Left");
+ break;
+ case XK_Right:
+ key_event.event_string = g_strdup ("Right");
+ break;
+ default:
+ if (nbytes > 0)
+ {
+ gunichar c;
+ cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
+ key_event.event_string = g_strdup (cbuf);
+ c = keysym2ucs (keysym);
+ if (c > 0 && !g_unichar_iscntrl (c))
+ {
+ key_event.is_text = TRUE;
+ /* incorrect for some composed chars? */
+ }
+ }
+ else
+ {
+ key_event.event_string = g_strdup ("");
+ }
+ }
+
+ key_event.timestamp = (dbus_uint32_t) x_key_event->time;
+#ifdef SPI_KEYEVENT_DEBUG
+ {
+ char *pressed_str = "pressed";
+ char *released_str = "released";
+ char *state_ptr;
+
+ if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
+ state_ptr = pressed_str;
+ else
+ state_ptr = released_str;
+
+ fprintf (stderr,
+ "Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
+ (unsigned long) keysym,
+ state_ptr,
+ keysym ? (int) keysym : '*',
+ (int) x_key_event->state,
+ key_event.event_string,
+ key_event.event_string[0],
+ (key_event.is_text == TRUE) ? "(text)" : "(not text)");
+ }
+#endif
+#ifdef SPI_DEBUG
+ fprintf (stderr, "%s%c\n",
+ (x_key_event->state & Mod1Mask)?"Alt-":"",
+ ((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
+ g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
+ fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
+#endif /* SPI_DEBUG */
+ return key_event;
+}
+
+static gboolean
+spi_controller_update_key_grabs (SpiDEController *controller,
+ Accessibility_DeviceEvent *recv)
+{
+ GList *l, *next;
+ gboolean update_failed = FALSE;
+ KeyCode keycode = 0;
+
+ g_return_val_if_fail (controller != NULL, FALSE);
+
+ /*
+ * masks known to work with default RH 7.1+:
+ * 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
+ * ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
+ * ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
+ * ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
+ *
+ * ControlMask grabs are broken, must be in use already
+ */
+ if (recv)
+ keycode = keycode_for_keysym (controller, recv->id, NULL);
+ for (l = controller->keygrabs_list; l; l = next)
+ {
+ gboolean do_remove;
+ gboolean re_issue_grab;
+ DEControllerGrabMask *grab_mask = l->data;
+
+ next = l->next;
+
+ re_issue_grab = recv &&
+ (recv->modifiers & grab_mask->mod_mask) &&
+ (grab_mask->key_val == keycode);
+
+#ifdef SPI_DEBUG
+ fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
+ (long int) grab_mask->key_val,
+ (long int) grab_mask->mod_mask,
+ grab_mask->pending_add ? '+' : '.',
+ grab_mask->pending_remove ? '-' : '.',
+ re_issue_grab ? "re-issue": "");
+#endif
+
+ do_remove = FALSE;
+
+ if (grab_mask->pending_add && grab_mask->pending_remove)
+ {
+ do_remove = TRUE;
+ }
+ else if (grab_mask->pending_remove)
+ {
+#ifdef SPI_DEBUG
+ fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
+#endif
+ XUngrabKey (spi_get_display (),
+ grab_mask->key_val,
+ grab_mask->mod_mask,
+ gdk_x11_get_default_root_xwindow ());
+
+ do_remove = TRUE;
+ }
+ else if (grab_mask->pending_add || re_issue_grab)
+ {
+
+#ifdef SPI_DEBUG
+ fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
+#endif
+ XGrabKey (spi_get_display (),
+ grab_mask->key_val,
+ grab_mask->mod_mask,
+ gdk_x11_get_default_root_xwindow (),
+ True,
+ GrabModeSync,
+ GrabModeSync);
+ XSync (spi_get_display (), False);
+ update_failed = spi_clear_error_state ();
+ if (update_failed) {
+ while (grab_mask->ref_count > 0) --grab_mask->ref_count;
+ do_remove = TRUE;
+ }
+ }
+
+ grab_mask->pending_add = FALSE;
+ grab_mask->pending_remove = FALSE;
+
+ if (do_remove)
+ {
+ g_assert (grab_mask->ref_count <= 0);
+
+ controller->keygrabs_list = g_list_delete_link (
+ controller->keygrabs_list, l);
+
+ spi_grab_mask_free (grab_mask);
+ }
+
+ }
+
+ return ! update_failed;
+}
+
+/*
+ * Implemented GObject::finalize
+ */
+static void
+spi_device_event_controller_object_finalize (GObject *object)
+{
+ SpiDEController *controller;
+ DEControllerPrivateData *private;
+ controller = SPI_DEVICE_EVENT_CONTROLLER (object);
+ GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
+#ifdef SPI_DEBUG
+ fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
+#endif
+ /* disconnect any special listeners, get rid of outstanding keygrabs */
+ XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
+
+#ifdef HAVE_XEVIE
+ if (controller->xevie_display != NULL)
+ {
+ XevieEnd(controller->xevie_display);
+#ifdef SPI_KEYEVENT_DEBUG
+ printf("XevieEnd(dpy) finished \n");
+#endif
+ }
+#endif
+
+ private = g_object_get_data (G_OBJECT (controller), "spi-dec-private");
+ if (private->xkb_desc)
+ XkbFreeKeyboard (private->xkb_desc, 0, True);
+ g_free (private);
+ parent_class->finalize (object);
+}
+
+/*
+ * DBus Accessibility::DEController::registerKeystrokeListener
+ * method implementation
+ */
+static DBusMessage *
+impl_register_keystroke_listener (DBusConnection *bus,
+ DBusMessage *message,
+ void *user_data)
+{
+ SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
+ DEControllerKeyListener *dec_listener;
+ DBusMessageIter iter, iter_array;
+ const char *path;
+ GSList *keys = NULL;
+ dbus_int32_t mask, type;
+ Accessibility_EventListenerMode *mode;
+ dbus_bool_t ret;
+ DBusMessage *reply;
+ char *keystring;
+
+ dbus_message_iter_init(message, &iter);
+ // TODO: verify type signature
+ dbus_message_iter_get_basic(&iter, &path);
+ dbus_message_iter_next(&iter);
+ dbus_message_iter_recurse(&iter, &iter_array);
+ while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
+ {
+ Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
+ if (!spi_dbus_message_iter_get_struct(&iter_array, DBUS_TYPE_INT32, &kd->keycode, DBUS_TYPE_INT32, &kd->keysym, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_INVALID))
+ {
+ break;
+ }
+ kd->keystring = g_strdup (keystring);
+ keys = g_slist_append(keys, kd);
+ }
+ dbus_message_iter_next(&iter);
+ dbus_message_iter_get_basic(&iter, &mask);
+ dbus_message_iter_next(&iter);
+ dbus_message_iter_get_basic(&iter, &type);
+ dbus_message_iter_next(&iter);
+ mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
+ if (mode)
+ {
+ spi_dbus_message_iter_get_struct(&iter, DBUS_TYPE_BOOLEAN, &mode->synchronous, DBUS_TYPE_BOOLEAN, &mode->preemptive, DBUS_TYPE_BOOLEAN, &mode->global, DBUS_TYPE_INVALID);
+ }
+#ifdef SPI_DEBUG
+ fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
+ dbus_message_get_sender(message), path, (unsigned long) mask);
+#endif
+ dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
+ ret = spi_controller_register_device_listener (
+ controller, (DEControllerListener *) dec_listener);
+ reply = dbus_message_new_method_return (message);
+ if (reply)
+ {
+ dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
+ }
+ return reply;
+}
+
+/*
+ * DBus Accessibility::DEController::registerDeviceEventListener
+ * method implementation
+ */
+static DBusMessage *
+impl_register_device_listener (DBusConnection *bus,
+ DBusMessage *message,
+ void *user_data)
+{
+ SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
+ DEControllerListener *dec_listener;
+ DBusError error;
+ const char *path;
+ dbus_int32_t event_types;
+ dbus_bool_t ret;
+ DBusMessage *reply;
+
+ dbus_error_init(&error);
+ if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
+ {
+ return spi_dbus_general_error (message);
+ }
+ dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
+ ret = spi_controller_register_device_listener (
+ controller, (DEControllerListener *) dec_listener);
+ reply = dbus_message_new_method_return (message);
+ if (reply)
+ {
+ dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
+ }
+ return reply;
+}
+
+typedef struct {
+ DBusConnection *bus;
+ DEControllerListener *listener;
+} RemoveListenerClosure;
+
+static SpiReEntrantContinue
+remove_listener_cb (GList * const *list,
+ gpointer user_data)
+{
+ DEControllerListener *listener = (*list)->data;
+ RemoveListenerClosure *ctx = user_data;
+
+ if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
+ !strcmp(ctx->listener->path, listener->path))
+ {
+ spi_re_entrant_list_delete_link (list);
+ spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
+ spi_dec_listener_free (listener);
+ }
+
+ return SPI_RE_ENTRANT_CONTINUE;
+}
+
+static SpiReEntrantContinue
+copy_key_listener_cb (GList * const *list,
+ gpointer user_data)
+{
+ DEControllerKeyListener *key_listener = (*list)->data;
+ RemoveListenerClosure *ctx = user_data;
+
+ if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
+ !strcmp(ctx->listener->path, key_listener->listener.path))
+ {
+ /* TODO: FIXME aggregate keys in case the listener is registered twice */
+ DEControllerKeyListener *ctx_key_listener =
+ (DEControllerKeyListener *) ctx->listener;
+ keylist_free (ctx_key_listener->keys);
+ ctx_key_listener->keys = keylist_clone(key_listener->keys);
+ }
+
+ return SPI_RE_ENTRANT_CONTINUE;
+}
+
+static void
+spi_controller_deregister_device_listener (SpiDEController *controller,
+ DEControllerListener *listener)
+{
+ RemoveListenerClosure ctx;
+
+ ctx.bus = controller->bus;
+ ctx.listener = listener;
+
+ spi_re_entrant_list_foreach (&controller->mouse_listeners,
+ remove_listener_cb, &ctx);
+}
+
+static void
+spi_deregister_controller_key_listener (SpiDEController *controller,
+ DEControllerKeyListener *key_listener)
+{
+ RemoveListenerClosure ctx;
+
+ ctx.bus = controller->bus;
+ ctx.listener = (DEControllerListener *) key_listener;
+
+ /* special case, copy keyset from existing controller list entry */
+ if (g_slist_length(key_listener->keys) == 0)
+ {
+ spi_re_entrant_list_foreach (&controller->key_listeners,
+ copy_key_listener_cb, &ctx);
+ }
+
+ spi_controller_deregister_global_keygrabs (controller, key_listener);
+
+ spi_re_entrant_list_foreach (&controller->key_listeners,
+ remove_listener_cb, &ctx);
+
+}
+
+void
+spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
+{
+ GList *l, *tmp;
+
+ for (l = controller->mouse_listeners; l; l = tmp)
+ {
+ DEControllerListener *listener = l->data;
+ tmp = l->next;
+ if (!strcmp (listener->bus_name, bus_name))
+ {
+ spi_controller_deregister_device_listener (controller, listener);
+ }
+ }
+ for (l = controller->key_listeners; l; l = tmp)
+ {
+ DEControllerKeyListener *key_listener = l->data;
+ tmp = l->next;
+ if (!strcmp (key_listener->listener.bus_name, bus_name))
+ {
+ spi_deregister_controller_key_listener (controller, key_listener);
+ }
+ }
+}
+
+/*
+ * DBus Accessibility::DEController::deregisterKeystrokeListener
+ * method implementation
+ */
+static DBusMessage *
+impl_deregister_keystroke_listener (DBusConnection *bus,
+ DBusMessage *message,
+ void *user_data)
+{
+ SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
+ DEControllerKeyListener *key_listener;
+ DBusMessageIter iter, iter_array;
+ const char *path;
+ GSList *keys = NULL;
+ dbus_int32_t mask, type;
+ DBusMessage *reply;
+
+ dbus_message_iter_init(message, &iter);
+ // TODO: verify type signature
+ dbus_message_iter_get_basic(&iter, &path);
+ dbus_message_iter_next(&iter);
+ dbus_message_iter_recurse(&iter, &iter_array);
+ while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
+ {
+ Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
+ char *keystring;
+
+ if (!spi_dbus_message_iter_get_struct(&iter_array, DBUS_TYPE_INT32, &kd->keycode, DBUS_TYPE_INT32, &kd->keysym, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_INVALID))
+ {
+ break;
+ }
+ kd->keystring = g_strdup (keystring);
+ keys = g_slist_append(keys, kd);
+ }
+ dbus_message_iter_next(&iter);
+ dbus_message_iter_get_basic(&iter, &mask);
+ dbus_message_iter_next(&iter);
+ dbus_message_iter_get_basic(&iter, &type);
+ dbus_message_iter_next(&iter);
+ key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
+#ifdef SPI_DEREGISTER_DEBUG
+ fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
+ (void *) l, (unsigned long) mask->value);
+#endif
+
+ spi_deregister_controller_key_listener (controller, key_listener);
+
+ spi_dec_listener_free ((DEControllerListener *) key_listener);
+ reply = dbus_message_new_method_return (message);
+ return reply;
+}
+
+/*
+ * DBus Accessibility::DEController::deregisterDeviceEventListener
+ * method implementation
+ */
+static DBusMessage *
+impl_deregister_device_listener (DBusConnection *bus,
+ DBusMessage *message,
+ void *user_data)
+{
+ SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
+ DEControllerListener *listener;
+ DBusError error;
+ const char *path;
+ dbus_int32_t event_types;
+ DBusMessage *reply;
+
+ dbus_error_init(&error);
+ if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
+ {
+ return spi_dbus_general_error (message);
+ }
+ listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
+ spi_controller_deregister_device_listener (
+ controller, listener);
+ reply = dbus_message_new_method_return (message);
+ return reply;
+}
+
+static unsigned int dec_xkb_get_slowkeys_delay (SpiDEController *controller)
+{
+ unsigned int retval = 0;
+ DEControllerPrivateData *priv = (DEControllerPrivateData *)
+ g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
+#ifdef HAVE_XKB
+#ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
+ retval = XkbGetSlowKeysDelay (spi_get_display (),
+ XkbUseCoreKbd, &bounce_delay);
+#else
+ if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
+ {
+ Status s = XkbGetControls (spi_get_display (),
+ XkbAllControlsMask, priv->xkb_desc);
+ if (s == Success)
+ {
+ if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
+ retval = priv->xkb_desc->ctrls->slow_keys_delay;
+ }
+ }
+#endif
+#endif
+#ifdef SPI_XKB_DEBUG
+ fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
+#endif
+ return retval;
+}
+
+static unsigned int dec_xkb_get_bouncekeys_delay (SpiDEController *controller)
+{
+ unsigned int retval = 0;
+ DEControllerPrivateData *priv = (DEControllerPrivateData *)
+ g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
+#ifdef HAVE_XKB
+#ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
+ retval = XkbGetBounceKeysDelay (spi_get_display (),
+ XkbUseCoreKbd, &bounce_delay);
+#else
+ if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
+ {
+ Status s = XkbGetControls (spi_get_display (),
+ XkbAllControlsMask, priv->xkb_desc);
+ if (s == Success)
+ {
+ if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
+ retval = priv->xkb_desc->ctrls->debounce_delay;
+ }
+ }
+#endif
+#endif
+#ifdef SPI_XKB_DEBUG
+ fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
+#endif
+ return retval;
+}
+
+static gboolean
+dec_synth_keycode_press (SpiDEController *controller,
+ unsigned int keycode)
+{
+ unsigned int time = CurrentTime;
+ unsigned int bounce_delay;
+ unsigned int elapsed_msec;
+ struct timeval tv;
+ DEControllerPrivateData *priv =
+ (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
+ spi_dec_private_quark);
+ if (keycode == priv->last_release_keycode)
+ {
+ bounce_delay = dec_xkb_get_bouncekeys_delay (controller);
+ if (bounce_delay)
+ {
+ gettimeofday (&tv, NULL);
+ elapsed_msec =
+ (tv.tv_sec - priv->last_release_time.tv_sec) * 1000
+ + (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
+#ifdef SPI_XKB_DEBUG
+ fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
+ (long) (tv.tv_usec - priv->last_release_time.tv_usec));
+#endif
+#ifdef THIS_IS_BROKEN
+ if (elapsed_msec < bounce_delay)
+ time = bounce_delay - elapsed_msec + 1;
+#else
+ time = bounce_delay + 10;
+ /* fudge for broken XTest */
+#endif
+#ifdef SPI_XKB_DEBUG
+ fprintf (stderr, "waiting %d ms\n", time);
+#endif
+ }
+ }
+ XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
+ priv->last_press_keycode = keycode;
+ XFlush (spi_get_display ());
+ XSync (spi_get_display (), False);
+ gettimeofday (&priv->last_press_time, NULL);
+ return TRUE;
+}
+
+static gboolean
+dec_synth_keycode_release (SpiDEController *controller,
+ unsigned int keycode)
+{
+ unsigned int time = CurrentTime;
+ unsigned int slow_delay;
+ unsigned int elapsed_msec;
+ struct timeval tv;
+ DEControllerPrivateData *priv =
+ (DEControllerPrivateData *) g_object_get_qdata (G_OBJECT (controller),
+ spi_dec_private_quark);
+ if (keycode == priv->last_press_keycode)
+ {
+ slow_delay = dec_xkb_get_slowkeys_delay (controller);
+ if (slow_delay)
+ {
+ gettimeofday (&tv, NULL);
+ elapsed_msec =
+ (tv.tv_sec - priv->last_press_time.tv_sec) * 1000
+ + (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
+#ifdef SPI_XKB_DEBUG
+ fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
+ (long) (tv.tv_usec - priv->last_press_time.tv_usec));
+#endif
+#ifdef THIS_IS_BROKEN_DUNNO_WHY
+ if (elapsed_msec < slow_delay)
+ time = slow_delay - elapsed_msec + 1;
+#else
+ time = slow_delay + 10;
+ /* our XTest seems broken, we have to add slop as above */
+#endif
+#ifdef SPI_XKB_DEBUG
+ fprintf (stderr, "waiting %d ms\n", time);
+#endif
+ }
+ }
+ XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
+ priv->last_release_keycode = keycode;
+ XSync (spi_get_display (), False);
+ gettimeofday (&priv->last_release_time, NULL);
+ return TRUE;
+}
+
+static unsigned
+dec_get_modifier_state (SpiDEController *controller)
+{
+ return mouse_mask_state;
+}
+
+static gboolean
+dec_lock_modifiers (SpiDEController *controller, unsigned modifiers)
+{
+ DEControllerPrivateData *priv = (DEControllerPrivateData *)
+ g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
+
+ if (priv->have_xkb) {
+ return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
+ modifiers, modifiers);
+ } else {
+ int mod_index;
+ for (mod_index=0;mod_index<8;mod_index++)
+ if (modifiers & (1<<mod_index))
+ dec_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
+ return TRUE;
+ }
+}
+
+static gboolean
+dec_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
+{
+ DEControllerPrivateData *priv = (DEControllerPrivateData *)
+ g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
+
+ if (priv->have_xkb) {
+ return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
+ modifiers, 0);
+ } else {
+ int mod_index;
+ for (mod_index=0;mod_index<8;mod_index++)
+ if (modifiers & (1<<mod_index))
+ dec_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
+ return TRUE;
+ }
+}
+
+static KeySym
+dec_keysym_for_unichar (SpiDEController *controller, gunichar unichar)
+{
+ return ucs2keysym ((long) unichar);
+}
+
+static gboolean
+dec_synth_keysym (SpiDEController *controller, KeySym keysym)
+{
+ KeyCode key_synth_code;
+ unsigned int modifiers, synth_mods, lock_mods;
+
+ key_synth_code = keycode_for_keysym (controller, keysym, &synth_mods);
+
+ if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
+
+ /* TODO: set the modifiers accordingly! */
+ modifiers = dec_get_modifier_state (controller);
+ /* side-effect; we may unset mousebutton modifiers here! */
+
+ lock_mods = 0;
+ if (synth_mods != modifiers) {
+ lock_mods = synth_mods & ~modifiers;
+ dec_lock_modifiers (controller, lock_mods);
+ }
+ dec_synth_keycode_press (controller, key_synth_code);
+ dec_synth_keycode_release (controller, key_synth_code);
+
+ if (synth_mods != modifiers)
+ dec_unlock_modifiers (controller, lock_mods);
+ return TRUE;
+}
+
+
+static gboolean
+dec_synth_keystring (SpiDEController *controller, const char *keystring)
+{
+ /* probably we need to create and inject an XIM handler eventually. */
+ /* for now, try to match the string to existing
+ * keycode+modifier states.
+ */
+ KeySym *keysyms;
+ gint maxlen = 0;
+ gunichar unichar = 0;
+ gint i = 0;
+ gboolean retval = TRUE;
+ const gchar *c;
+
+ maxlen = strlen (keystring) + 1;
+ keysyms = g_new0 (KeySym, maxlen);
+ if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
+ retval = FALSE;
+ }
+ else {
+#ifdef SPI_DEBUG
+ fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
+#endif
+ while (keystring && (unichar = g_utf8_get_char (keystring))) {
+ KeySym keysym;
+ char bytes[6];
+ gint mbytes;
+
+ mbytes = g_unichar_to_utf8 (unichar, bytes);
+ bytes[mbytes] = '\0';
+#ifdef SPI_DEBUG
+ fprintf (stderr, "[unichar %s]", bytes);
+#endif
+ keysym = dec_keysym_for_unichar (controller, unichar);
+ if (keysym == NoSymbol) {
+#ifdef SPI_DEBUG
+ fprintf (stderr, "no keysym for %s", bytes);
+#endif
+ retval = FALSE;
+ break;
+ }
+ keysyms[i++] = keysym;
+ keystring = g_utf8_next_char (keystring);
+ }
+ keysyms[i++] = 0;
+ XSynchronize (spi_get_display (), TRUE);
+ for (i = 0; keysyms[i]; ++i) {
+ if (!dec_synth_keysym (controller, keysyms[i])) {
+#ifdef SPI_DEBUG
+ fprintf (stderr, "could not synthesize %c\n",
+ (int) keysyms[i]);
+#endif
+ retval = FALSE;
+ break;
+ }
+ }
+ XSynchronize (spi_get_display (), FALSE);
+ }
+ g_free (keysyms);
+
+ return retval;
+}
+
+
+/*
+ * DBus Accessibility::DEController::registerKeystrokeListener
+ * method implementation
+ */
+static DBusMessage * impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
+{
+ SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
+ DBusError error;
+ dbus_int32_t keycode;
+ char *keystring;
+ dbus_uint32_t synth_type;
+ gint err;
+ KeySym keysym;
+ DEControllerPrivateData *priv;
+ DBusMessage *reply;
+
+ dbus_error_init(&error);
+ if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
+ {
+ return spi_dbus_general_error (message);
+ }
+
+#ifdef SPI_DEBUG
+ fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
+ (long) keycode, (int) synth_type);
+#endif
+ /* TODO: hide/wrap/remove X dependency */
+
+ /*
+ * TODO: when initializing, query for XTest extension before using,
+ * and fall back to XSendEvent() if XTest is not available.
+ */
+
+ gdk_error_trap_push ();
+
+ priv = (DEControllerPrivateData *)
+ g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
+
+ if (!priv->have_xkb && xmkeymap==NULL) {
+ xmkeymap = XGetModifierMapping(spi_get_display ());
+ }
+
+ switch (synth_type)
+ {
+ case Accessibility_KEY_PRESS:
+ dec_synth_keycode_press (controller, keycode);
+ break;
+ case Accessibility_KEY_PRESSRELEASE:
+ dec_synth_keycode_press (controller, keycode);
+ case Accessibility_KEY_RELEASE:
+ dec_synth_keycode_release (controller, keycode);
+ break;
+ case Accessibility_KEY_SYM:
+#ifdef SPI_XKB_DEBUG
+ fprintf (stderr, "KeySym synthesis\n");
+#endif
+ /*
+ * note: we are using long for 'keycode'
+ * in our arg list; it can contain either
+ * a keycode or a keysym.
+ */
+ dec_synth_keysym (controller, (KeySym) keycode);
+ break;
+ case Accessibility_KEY_STRING:
+ if (!dec_synth_keystring (controller, keystring))
+ fprintf (stderr, "Keystring synthesis failure, string=%s\n",
+ keystring);
+ break;
+ }
+ if (synth_type == Accessibility_KEY_SYM) {
+ keysym = keycode;
+ }
+ else {
+ keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
+ }
+ if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0)
+ {
+ spi_dec_clear_unlatch_pending (controller);
+ }
+ reply = dbus_message_new_method_return (message);
+ return reply;
+}
+
+/* Accessibility::DEController::generateMouseEvent */
+static DBusMessage * impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
+{
+ DBusError error;
+ dbus_int32_t x;
+ dbus_int32_t y;
+ char *eventName;
+ DBusMessage *reply;
+ int button = 0;
+ gboolean err = FALSE;
+ Display *display = spi_get_display ();
+
+ if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
+ {
+ return spi_dbus_general_error (message);
+ }
+
+#ifdef SPI_DEBUG
+ fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
+ eventName, (long int) x, (long int) y);
+#endif
+ switch (eventName[0])
+ {
+ case 'b':
+ switch (eventName[1])
+ {
+ /* TODO: check number of buttons before parsing */
+ case '1':
+ button = 1;
+ break;
+ case '2':
+ button = 2;
+ break;
+ case '3':
+ button = 3;
+ break;
+ case '4':
+ button = 4;
+ break;
+ case '5':
+ button = 5;
+ break;
+ default:
+ err = TRUE;
+ }
+ if (!err)
+ {
+ if (x != -1 && y != -1)
+ {
+ XTestFakeMotionEvent (display, DefaultScreen (display),
+ x, y, 0);
+ }
+ XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
+ if (eventName[2] == 'c')
+ XTestFakeButtonEvent (display, button, FALSE, 1);
+ else if (eventName[2] == 'd')
+ {
+ XTestFakeButtonEvent (display, button, FALSE, 1);
+ XTestFakeButtonEvent (display, button, TRUE, 2);
+ XTestFakeButtonEvent (display, button, FALSE, 3);
+ }
+ }
+ break;
+ case 'r': /* relative motion */
+ XTestFakeRelativeMotionEvent (display, x, y, 0);
+ break;
+ case 'a': /* absolute motion */
+ XTestFakeMotionEvent (display, DefaultScreen (display),
+ x, y, 0);
+ break;
+ }
+ reply = dbus_message_new_method_return (message);
+ return reply;
+}
+
+/* Accessibility::DEController::notifyListenersSync */
+static DBusMessage *
+impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
+{
+ SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
+ Accessibility_DeviceEvent event;
+ dbus_bool_t ret;
+ DBusMessage *reply;
+
+ if (!spi_dbus_demarshal_deviceEvent(message, &event))
+ {
+ return spi_dbus_general_error (message);
+ }
+#ifdef SPI_DEBUG
+ g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
+ controller, (int) event.id);
+#endif
+ ret = spi_controller_notify_keylisteners (controller,
+ (Accessibility_DeviceEvent *)
+ &event, FALSE) ?
+ TRUE : FALSE;
+ reply = dbus_message_new_method_return (message);
+ if (reply)
+ {
+ dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
+ }
+ return reply;
+}
+
+static DBusMessage *
+impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
+{
+ SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
+ Accessibility_DeviceEvent event;
+ DBusMessage *reply;
+
+ if (!spi_dbus_demarshal_deviceEvent(message, &event))
+ {
+ return spi_dbus_general_error (message);
+ }
+#ifdef SPI_DEBUG
+ g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
+ controller, (int) event.id);
+#endif
+ spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
+ &event, FALSE);
+ reply = dbus_message_new_method_return (message);
+ return reply;
+}
+
+static void
+spi_device_event_controller_class_init (SpiDEControllerClass *klass)
+{
+ GObjectClass * object_class = (GObjectClass *) klass;
+
+ spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
+
+ object_class->finalize = spi_device_event_controller_object_finalize;
+
+ if (!spi_dec_private_quark)
+ spi_dec_private_quark = g_quark_from_static_string ("spi-dec-private");
+}
+
+#ifdef HAVE_XEVIE
+static Bool isEvent(Display *dpy, XEvent *event, char *arg)
+{
+ return TRUE;
+}
+
+static gboolean
+handle_io (GIOChannel *source,
+ GIOCondition condition,
+ gpointer data)
+{
+ SpiDEController *controller = (SpiDEController *) data;
+ gboolean is_consumed = FALSE;
+ XEvent ev;
+
+ while (XCheckIfEvent(controller->xevie_display, &ev, isEvent, NULL))
+ {
+ if (ev.type == KeyPress || ev.type == KeyRelease)
+ is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
+
+ if (! is_consumed)
+ XevieSendEvent(controller->xevie_display, &ev, XEVIE_UNMODIFIED);
+ }
+
+ return TRUE;
+}
+#endif /* HAVE_XEVIE */
+
+static void
+spi_device_event_controller_init (SpiDEController *device_event_controller)
+{
+#ifdef HAVE_XEVIE
+ GIOChannel *ioc;
+ int fd;
+#endif /* HAVE_XEVIE */
+
+ DEControllerPrivateData *private;
+ device_event_controller->key_listeners = NULL;
+ device_event_controller->mouse_listeners = NULL;
+ device_event_controller->keygrabs_list = NULL;
+ device_event_controller->xevie_display = NULL;
+
+#ifdef HAVE_XEVIE
+ device_event_controller->xevie_display = XOpenDisplay(NULL);
+
+ if (XevieStart(device_event_controller->xevie_display) == TRUE)
+ {
+#ifdef SPI_KEYEVENT_DEBUG
+ fprintf (stderr, "XevieStart() success \n");
+#endif
+ XevieSelectInput(device_event_controller->xevie_display, KeyPressMask | KeyReleaseMask);
+
+ fd = ConnectionNumber(device_event_controller->xevie_display);
+ ioc = g_io_channel_unix_new (fd);
+ g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, device_event_controller);
+ g_io_channel_unref (ioc);
+ }
+ else
+ {
+ device_event_controller->xevie_display = NULL;
+#ifdef SPI_KEYEVENT_DEBUG
+ fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
+#endif
+ }
+#endif /* HAVE_XEVIE */
+
+ private = g_new0 (DEControllerPrivateData, 1);
+ gettimeofday (&private->last_press_time, NULL);
+ gettimeofday (&private->last_release_time, NULL);
+ g_object_set_qdata (G_OBJECT (device_event_controller),
+ spi_dec_private_quark,
+ private);
+ spi_controller_register_with_devices (device_event_controller);
+}
+
+static gboolean
+spi_device_event_controller_forward_key_event (SpiDEController *controller,
+ const XEvent *event)
+{
+ Accessibility_DeviceEvent key_event;
+ gboolean ret;
+
+ g_assert (event->type == KeyPress || event->type == KeyRelease);
+
+ key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
+
+ if (controller->xevie_display == NULL)
+ spi_controller_update_key_grabs (controller, &key_event);
+
+ /* relay to listeners, and decide whether to consume it or not */
+ ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
+ g_free(key_event.event_string);
+ return ret;
+}
+
+
+static gboolean
+is_key_released (KeyCode code)
+{
+ char keys[32];
+ int down;
+
+ XQueryKeymap (spi_get_display (), keys);
+ down = BIT (keys, code);
+ return (down == 0);
+}
+
+static gboolean
+check_release (gpointer data)
+{
+ gboolean released;
+ Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
+ KeyCode code = event->hw_code;
+
+ released = is_key_released (code);
+
+ if (released)
+ {
+ check_release_handler = 0;
+ event->type = Accessibility_KEY_RELEASED_EVENT;
+ spi_controller_notify_keylisteners (saved_controller, event, TRUE);
+ }
+ return (released == 0);
+}
+
+static void wait_for_release_event (XEvent *event,
+ SpiDEController *controller)
+{
+ pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
+ saved_controller = controller;
+ check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
+}
+
+static DRouteMethod dev_methods[] =
+{
+ { impl_register_keystroke_listener, "registerKeystrokeListener" },
+ { impl_register_device_listener, "registerDeviceListener" },
+ { impl_deregister_keystroke_listener, "deregisterKeystrokeListener" },
+ { impl_deregister_device_listener, "deregisterDeviceListener" },
+ { impl_generate_keyboard_event, "generateKeyboardEvent" },
+ { impl_generate_mouse_event, "generateMouseEvent" },
+ { impl_notify_listeners_sync, "notifyListenersSync" },
+ { impl_notify_listeners_async, "notifyListenersAsync" },
+ { NULL, NULL }
+};
+
+SpiDEController *
+spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus, DRouteContext *droute)
+{
+ SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
+ DRoutePath *path;
+
+ dec->registry = g_object_ref (reg);
+ dec->bus = bus;
+
+ path = droute_add_one (droute,
+ "/org/freedesktop/atspi/registry/deviceeventcontroller",
+ dec);
+
+ droute_path_add_interface (path,
+ SPI_DBUS_INTERFACE_DEC,
+ dev_methods,
+ NULL);
+
+ spi_dec_init_mouse_listener (dec);
+ /* TODO: kill mouse listener on finalize */
+
+ return dec;
+}