+#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;
+ 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;
+ }
+ }
+ else
+ DBG (2, g_warning ("XKB event %d\n", xkb_ev->xkb_type));
+ 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 = (DEControllerPrivateData *)
+ g_object_get_qdata (G_OBJECT (controller), spi_dec_private_quark);
+ /* FIXME: should check for extension first! */
+ 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,