-/* AT-SPI - Assistive Technology Service Provider Interface
- *
- * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
- *
- * 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
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* deviceeventcontroller.c: implement the DeviceEventController interface */
-
-#include <config.h>
-
-#undef SPI_XKB_DEBUG
-#undef SPI_DEBUG
-#undef SPI_KEYEVENT_DEBUG
-
-#include <string.h>
-#include <ctype.h>
-#include <stdio.h>
-#include <sys/time.h>
-
-#include <X11/Xlib.h>
-#include <X11/extensions/XTest.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 <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"
-
-KeySym ucs2keysym (long ucs);
-long keysym2ucs(KeySym keysym);
-
-#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
-
-/* 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 GQuark spi_dec_private_quark = 0;
-static XModifierKeymap* xmkeymap = NULL;
-
-static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
-
-typedef enum {
- SPI_DEVICE_TYPE_KBD,
- SPI_DEVICE_TYPE_MOUSE,
- SPI_DEVICE_TYPE_LAST_DEFINED
-} SpiDeviceTypeCategory;
-
-typedef struct {
- guint ref_count : 30;
- guint pending_add : 1;
- guint pending_remove : 1;
-
- Accessibility_ControllerEventMask mod_mask;
- dbus_uint32_t key_val; /* KeyCode */
-} DEControllerGrabMask;
-
-typedef struct {
- char *bus_name;
- char *path;
- SpiDeviceTypeCategory type;
- gulong types;
-} DEControllerListener;
-
-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 dbus_bool_t
-spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
-{
- char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
- if (match)
- {
- DBusError error;
- dbus_error_init (&error);
- dbus_bus_add_match (bus, match, &error);
- g_free (match);
- return !dbus_error_is_set (&error);
- }
- else return FALSE;
-}
-
-static dbus_bool_t
-spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
-{
- char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
- if (match)
- {
- DBusError error;
- dbus_error_init (&error);
- dbus_bus_remove_match (bus, match, &error);
- g_free (match);
- return !dbus_error_is_set (&error);
- }
- else return FALSE;
-}
-
-static unsigned int
-keysym_mod_mask (KeySym keysym, KeyCode keycode)
-{
- /* 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;
-
- 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
-}
-
-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
-spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
-{
- 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
-spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
-{
- 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 *interface, const char *name, int a1, int a2)
-{
- DBusMessage *signal = NULL;
- DBusMessageIter iter, iter_variant;
- int nil = 0;
- const char *minor = "";
- const char *path = SPI_DBUS_PATH_DESKTOP;
-
- signal = dbus_message_new_signal (path, interface, name);
-
- dbus_message_iter_init_append (signal, &iter);
-
- dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &minor);
- dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &a1);
- dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &a2);
- dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "i", &iter_variant);
- dbus_message_iter_append_basic (&iter_variant, DBUS_TYPE_INT32, &nil);
- dbus_message_iter_close_container (&iter, &iter_variant);
-
- dbus_connection_send (controller->bus, signal, NULL);
-}
-
-static gboolean
-spi_dec_button_update_and_emit (SpiDEController *controller,
- guint mask_return)
-{
- Accessibility_DeviceEvent mouse_e;
- gchar event_detail[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;
-
- 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_detail, 22, "%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, SPI_DBUS_INTERFACE_EVENT_MOUSE, "button", x, y);
- }
- else
- spi_dec_set_unlatch_pending (controller, mask_return);
- }
- return TRUE;
- }
- else
- {
- return FALSE;
- }
-}
-
-
-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, SPI_DBUS_INTERFACE_EVENT_MOUSE, "abs", ix, iy);
- ix -= last_mouse_pos->x;
- iy -= last_mouse_pos->y;
- emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "rel", ix, iy);
- last_mouse_pos->x = *x;
- last_mouse_pos->y = *y;
- *moved = True;
- }
- else
- {
- *moved = False;
- }
-
- return mask_return;
-}
-
-static void
-spi_dec_emit_modifier_event (SpiDEController *controller, guint prev_mask,
- guint current_mask)
-{
- dbus_uint32_t d1, d2;
-
-#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, SPI_DBUS_INTERFACE_EVENT_KEYBOARD, "modifiers", d1, d2);
-}
-
-static gboolean
-spi_dec_poll_mouse_moved (gpointer data)
-{
- SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
- int x, y;
- gboolean moved;
- guint mask_return;
-
- 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
-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;
- }
-}
-
-#ifdef WE_NEED_UGRAB_MOUSE
-static int
-spi_dec_ungrab_mouse (gpointer data)
-{
- Display *display = spi_get_display ();
- if (display)
- {
- 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, "WARNING: could not grab mouse buttons!\n");
-#endif
- ;
- }
- XSync (display, False);
-#ifdef SPI_DEBUG
- fprintf (stderr, "mouse buttons grabbed\n");
-#endif
- }
-#endif
-}
-
-/**
- * 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)
-{
- Accessibility_ControllerEventMask tmp_mask;
- gboolean has_numlock;
-
- 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;
-}
-
-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
- 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
-
- return key_listener;
-}
-
-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;
-}
-
-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);
-}
-
-static void
-spi_key_listener_data_free (DEControllerKeyListener *key_listener)
-{
- keylist_free(key_listener->keys);
- if (key_listener->mode) g_free(key_listener->mode);
- g_free (key_listener);
-}
-
-static void
-spi_key_listener_clone_free (DEControllerKeyListener *clone)
-{
- spi_key_listener_data_free (clone);
-}
-
-static void
-spi_listener_clone_free (DEControllerListener *clone)
-{
- g_free (clone->path);
- g_free (clone->bus_name);
- g_free (clone);
-}
-
-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);
-}
-
-static void
-_register_keygrab (SpiDEController *controller,
- DEControllerGrabMask *grab_mask)
-{
- 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
-_deregister_keygrab (SpiDEController *controller,
- DEControllerGrabMask *grab_mask)
-{
- 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->ref_count <= 0)
- {
- cur_mask->pending_remove = TRUE;
- }
- }
-}
-
-static void
-handle_keygrab (SpiDEController *controller,
- DEControllerKeyListener *key_listener,
- void (*process_cb) (SpiDEController *controller,
- DEControllerGrabMask *grab_mask))
-{
- DEControllerGrabMask grab_mask = { 0 };
-
- 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,
- SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER,
- "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_detail[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_detail, 22, "%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, SPI_DBUS_INTERFACE_EVENT_MOUSE, "button", event_detail, ix, iy);
- }
-
- 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!\n");
- 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 = NULL;
- 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);
- if (!strcmp (dbus_message_iter_get_signature (&iter), "u"))
- dbus_message_iter_get_basic(&iter, &type);
- else
- {
- dbus_message_iter_recurse(&iter, &iter_array);
- while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
- {
- dbus_uint32_t t;
- dbus_message_iter_get_basic (&iter_array, &t);
- type |= (1 << t);
- dbus_message_iter_next (&iter_array);
- }
- dbus_message_iter_next (&iter_array);
- }
- 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_event_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 = NULL;
-
- 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 droute_invalid_arguments_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 = NULL;
-
- 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_event_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 = NULL;
-
- 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 droute_invalid_arguments_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 = NULL;
-
- 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 droute_invalid_arguments_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 = NULL;
- int button = 0;
- gboolean err = FALSE;
- Display *display = spi_get_display ();
-
- dbus_error_init (&error);
- if (!dbus_message_get_args(message, &error, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
- {
- return droute_invalid_arguments_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 = NULL;
-
- if (!spi_dbus_demarshal_deviceEvent(message, &event))
- {
- return droute_invalid_arguments_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 = NULL;
-
- if (!spi_dbus_demarshal_deviceEvent(message, &event))
- {
- return droute_invalid_arguments_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_event_listener, "registerDeviceEventListener" },
- { impl_deregister_keystroke_listener, "deregisterKeystrokeListener" },
- { impl_deregister_device_event_listener, "deregisterDeviceEventListener" },
- { 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,
- SPI_DBUS_PATH_DEC,
- 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;
-}
projects / platform / core / uifw / at-spi2-atk.git / commitdiff