#include <stdio.h>
#endif
+#include <stdlib.h> /* for getenv() */
+#include <X11/Xlib.h>
+#include <X11/extensions/XTest.h>
#include <config.h>
+#include <gdk/gdkx.h> /* TODO: hide dependency (wrap in single porting file) */
+#include <gdk/gdkwindow.h>
#include <bonobo/Bonobo.h>
#include <libspi/Accessibility.h>
/*
* A pointer to our parent object class
*/
-static GObjectClass *device_event_controller_parent_class;
+static GObjectClass *spi_device_event_controller_parent_class;
+
+static gboolean kbd_registered = FALSE;
+
+static Display *display;
+
+static Window root_window;
+
+typedef enum {
+ SPI_DEVICE_TYPE_KBD,
+ SPI_DEVICE_TYPE_MOUSE,
+ SPI_DEVICE_TYPE_LAST_DEFINED
+} SpiDeviceTypeCategory;
+
+struct _DEControllerListener {
+ CORBA_Object object;
+ SpiDeviceTypeCategory type;
+};
+
+typedef struct _DEControllerListener DEControllerListener;
+
+struct _DEControllerKeyListener {
+ DEControllerListener listener;
+ Accessibility_KeySet *keys;
+ Accessibility_ControllerEventMask *mask;
+ Accessibility_KeyEventTypeSeq *typeseq;
+ gboolean is_system_global;
+};
+
+typedef struct _DEControllerKeyListener DEControllerKeyListener;
+
+static gboolean _controller_register_with_devices (SpiDeviceEventController *controller);
+static gboolean _controller_grab_keyboard (SpiDeviceEventController *controller);
+
+static void controller_register_device_listener (SpiDeviceEventController *controller,
+ DEControllerListener *l,
+ CORBA_Environment *ev);
+
+/*
+ * Private methods
+ */
+
+static gint
+_compare_listeners (gconstpointer p1, gconstpointer p2)
+{
+ DEControllerListener *l1 = (DEControllerListener *) p1;
+ DEControllerListener *l2 = (DEControllerListener *) p2;
+ return _compare_corba_objects (l1->object, l2->object);
+}
+
+static gint
+_compare_corba_objects (gconstpointer p1, gconstpointer p2)
+{
+ CORBA_Environment ev;
+ gint retval;
+ retval = !CORBA_Object_is_equivalent ((CORBA_Object) p1, (CORBA_Object) p2, &ev);
+
+#ifdef SPI_DEBUG
+ fprintf (stderr, "comparing %p to %p; result %d\n",
+ p1, p2,
+ retval);
+#endif
+ return retval;
+}
+
+static gint
+_eventmask_compare_value (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;
+}
+
+static DEControllerKeyListener *
+dec_key_listener_new (CORBA_Object l,
+ const Accessibility_KeySet *keys,
+ const Accessibility_ControllerEventMask *mask,
+ const Accessibility_KeyEventTypeSeq *typeseq,
+ const CORBA_boolean is_system_global,
+ CORBA_Environment *ev)
+{
+ DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
+ key_listener->listener.object = CORBA_Object_duplicate (l, ev);
+ key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
+ key_listener->keys = keys;
+ key_listener->mask = mask;
+ key_listener->is_system_global = is_system_global;
+
+ return key_listener;
+}
+
+static void
+controller_register_device_listener (SpiDeviceEventController *controller,
+ DEControllerListener *listener,
+ CORBA_Environment *ev)
+{
+ Accessibility_ControllerEventMask *mask_ptr = NULL;
+ DEControllerKeyListener *key_listener;
+
+ switch (listener->type) {
+ case SPI_DEVICE_TYPE_KBD:
+ key_listener = (DEControllerKeyListener *) listener;
+ controller->key_listeners = g_list_append (controller->key_listeners, key_listener);
+
+ mask_ptr = (Accessibility_ControllerEventMask *)
+ g_list_find_custom (controller->keymask_list, (gpointer) key_listener->mask,
+ _eventmask_compare_value);
+ if (mask_ptr)
+ ++(mask_ptr->refcount);
+ else
+ {
+ if (key_listener->mask->refcount != (CORBA_unsigned_short) 1)
+ fprintf (stderr, "mask initial refcount is not 1!\n");
+ if (key_listener->mask->value > (CORBA_unsigned_long) 2048)
+ fprintf (stderr, "mask value looks invalid (%lu)\n",
+ (unsigned long) key_listener->mask->value);
+ else
+ fprintf (stderr, "appending mask with val=%lu\n",
+ (unsigned long) key_listener->mask->value);
+ mask_ptr = Accessibility_ControllerEventMask__alloc();
+ mask_ptr->value = key_listener->mask->value;
+ mask_ptr->refcount = (CORBA_unsigned_short) 1;
+ controller->keymask_list = g_list_append (controller->keymask_list,
+ (gpointer) mask_ptr);
+ }
+ break;
+ case SPI_DEVICE_TYPE_MOUSE:
+/* controller->mouse_listeners = g_list_append (controller->mouse_listeners,
+ CORBA_Object_duplicate (l, ev));*/
+
+/* possibly this interface should NOT be used for mouse events ? */
+ break;
+ }
+}
+
+static void
+controller_deregister_device_listener (SpiDeviceEventController *controller,
+ DEControllerListener *listener,
+ CORBA_Environment *ev)
+{
+ Accessibility_ControllerEventMask *mask_ptr;
+ DEControllerKeyListener *key_listener;
+ GList *list_ptr;
+ switch (listener->type) {
+ case SPI_DEVICE_TYPE_KBD:
+ key_listener = (DEControllerKeyListener *) listener;
+ list_ptr = g_list_find_custom (controller->key_listeners, listener, _compare_listeners);
+ /* TODO: need a different custom compare func */
+ 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) key_listener->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 SPI_DEVICE_TYPE_MOUSE:
+/* controller->mouse_listeners = g_list_append (controller->mouse_listeners,
+ CORBA_Object_duplicate (l, ev));*/
+
+/* possibly this interface should NOT be used for mouse events ? */
+ break;
+ }
+}
+
+static gboolean
+_controller_register_with_devices (SpiDeviceEventController *controller)
+{
+ gboolean retval = FALSE;
+
+ /* 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;
+}
+
+
+static gboolean
+notify_keylisteners (GList *key_listeners, Accessibility_KeyStroke *key_event, CORBA_Environment *ev)
+{
+ int i, n_listeners = g_list_length (key_listeners);
+ gboolean is_consumed = FALSE;
+ for (i=0; i<n_listeners && !is_consumed; ++i)
+ {
+ Accessibility_KeystrokeListener ls;
+ ls = (Accessibility_KeystrokeListener)
+ g_list_nth_data (key_listeners, i);
+ if (!CORBA_Object_is_nil(ls, ev))
+ {
+ is_consumed = Accessibility_KeystrokeListener_keyEvent (ls, key_event, ev);
+ }
+ }
+ return is_consumed;
+}
+
+
+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;
+ Accessibility_KeyStroke key_event;
+ static CORBA_Environment ev;
+
+ if (!initialized)
+ {
+ initialized = TRUE;
+ CORBA_exception_init (&ev);
+ }
+
+ while (XPending(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);
+#endif
+#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);
+#endif
+ }
+ /* relay to listeners, and decide whether to consume it or not */
+ is_consumed = notify_keylisteners (controller->key_listeners, &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)
+{
+ GList *maskList = controller->keymask_list;
+ int i;
+ int last_mask;
+ last_mask = g_list_length (maskList);
+
+/*
+ * 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;
+}
/*
* Implemented GObject::finalize
*/
static void
-device_event_controller_object_finalize (GObject *object)
+spi_device_event_controller_object_finalize (GObject *object)
{
#ifdef SPI_DEBUG
- fprintf(stderr, "device_event_controller_object_finalize called\n");
+ fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
#endif
- device_event_controller_parent_class->finalize (object);
+ spi_device_event_controller_parent_class->finalize (object);
}
/*
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_system_global,
CORBA_Environment *ev)
{
+ SpiDeviceEventController *controller = SPI_DEVICE_EVENT_CONTROLLER (
+ bonobo_object_from_servant (servant));
+ DEControllerKeyListener *dec_listener;
#ifdef SPI_DEBUG
- fprintf (stderr, "registering keystroke listener %p\n", l);
+ fprintf (stderr, "registering keystroke listener %p with maskVal %lu\n",
+ (void *) l, (unsigned long) mask->value);
#endif
+ dec_listener = dec_key_listener_new (l, keys, mask, type, is_system_global, ev);
+ controller_register_device_listener (controller, (DEControllerListener *) dec_listener, ev);
}
+
+/*
+ * 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_system_global,
+ CORBA_Environment *ev)
+{
+ SpiDeviceEventController *controller = SPI_DEVICE_EVENT_CONTROLLER (
+ bonobo_object_from_servant (servant));
+ DEControllerKeyListener *key_listener = dec_key_listener_new (l,
+ keys,
+ mask,
+ type,
+ is_system_global,
+ ev);
+#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,
+ (DEControllerListener *) key_listener,
+ ev);
+}
+
/*
* CORBA Accessibility::DeviceEventController::registerMouseListener
* method implementation
const Accessibility_MouseListener *l,
CORBA_Environment *ev)
{
+ 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, DEVICE_TYPE_MOUSE, l, keys, mask, ev);
}
*/
+static KeyCode
+keycode_for_keysym (long keysym)
+{
+ return XKeysymToKeycode (display, (KeySym) keysym);
+}
+
/*
* CORBA Accessibility::DeviceEventController::registerKeystrokeListener
* method implementation
*/
static void
impl_generate_key_event (PortableServer_Servant servant,
- const CORBA_long keyEventID,
- CORBA_Environment *ev)
+ const CORBA_long keycode,
+ const Accessibility_KeySynthType synth_type,
+ CORBA_Environment *ev)
{
+ long key_synth_code;
#ifdef SPI_DEBUG
- fprintf (stderr, "synthesizing keystroke %ld\n", keyEventID);
+ fprintf (stderr, "synthesizing keystroke %ld\n", (long) keycode);
#endif
+ /* TODO: hide/wrap/remove X dependency */
+
+ /* 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
-device_event_controller_class_init (DeviceEventControllerClass *klass)
+spi_device_event_controller_class_init (SpiDeviceEventControllerClass *klass)
{
GObjectClass * object_class = (GObjectClass *) klass;
POA_Accessibility_DeviceEventController__epv *epv = &klass->epv;
- device_event_controller_parent_class = g_type_class_ref (BONOBO_OBJECT_TYPE);
+ spi_device_event_controller_parent_class = g_type_class_ref (BONOBO_OBJECT_TYPE);
- object_class->finalize = device_event_controller_object_finalize;
+ object_class->finalize = spi_device_event_controller_object_finalize;
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;
}
static void
-device_event_controller_init (DeviceEventController *device_event_controller)
+spi_device_event_controller_init (SpiDeviceEventController *device_event_controller)
+{
+ 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);
+}
+
+SpiDeviceEventController *
+spi_device_event_controller_new (void *registryp)
{
+ SpiRegistry *registry = SPI_REGISTRY (registryp);
+ SpiDeviceEventController *retval =
+ SPI_DEVICE_EVENT_CONTROLLER (g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL));
+ retval->registry = registry;
+ bonobo_object_ref (registry);
+ return retval;
}
GType
-device_event_controller_get_type (void)
+spi_device_event_controller_get_type (void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo tinfo = {
- sizeof (DeviceEventControllerClass),
+ sizeof (SpiDeviceEventControllerClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
- (GClassInitFunc) device_event_controller_class_init,
+ (GClassInitFunc) spi_device_event_controller_class_init,
(GClassFinalizeFunc) NULL,
NULL, /* class data */
- sizeof (DeviceEventController),
+ sizeof (SpiDeviceEventController),
0, /* n preallocs */
- (GInstanceInitFunc) device_event_controller_init,
+ (GInstanceInitFunc) spi_device_event_controller_init,
NULL /* value table */
};
/*
PARENT_TYPE,
POA_Accessibility_DeviceEventController__init,
NULL,
- G_STRUCT_OFFSET (DeviceEventControllerClass, epv),
+ G_STRUCT_OFFSET (SpiDeviceEventControllerClass, epv),
&tinfo,
- "DeviceEventController");
+ "SpiDeviceEventController");
}
return type;
projects / platform / core / uifw / at-spi2-atk.git / blobdiff