* AT-SPI - Assistive Technology Service Provider Interface
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
- * Copyright 2001 Sun Microsystems Inc.
+ * Copyright 2001, 2002, 2003 Sun Microsystems Inc.,
+ * Copyright 2001, 2002, 2003 Ximian, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
*/
#include <cspi/spi-private.h>
+#include <cspi/bonobo/cspi-bonobo-listener.h>
-
+static GSList *_cspi_event_queue = NULL;
/**
* SPI_freeAccessibleKeySet:
*
**/
AccessibleKeySet *
-SPI_createAccessibleKeySet (int len, const char *keysyms, short *keycodes, const char **keystrings)
+SPI_createAccessibleKeySet (int len, const char *keysyms, short *keycodes,
+ const char **keystrings)
{
AccessibleKeySet *keyset = g_new0 (AccessibleKeySet, 1);
int i, keysym_len = 0;
{
keyset->keysyms [i] = 0;
}
- if (keycodes) keyset->keycodes [i] = keycodes [i];
- if (keystrings) keyset->keystrings [i] = keystrings [i];
+ if (keycodes)
+ {
+ keyset->keycodes [i] = keycodes [i];
+ }
+ if (keystrings)
+ {
+ keyset->keystrings [i] = g_strdup (keystrings [i]);
+ }
}
return keyset;
}
}
/**
- * createAccessibleKeystrokeListener:
+ * SPI_createAccessibleKeystrokeListener:
* @callback : an #AccessibleKeystrokeListenerCB callback function, or NULL.
* @user_data: a pointer to data which will be passed to the callback when invoked.
*
SPI_createAccessibleKeystrokeListener (AccessibleKeystrokeListenerCB callback,
void *user_data)
{
- AccessibleKeystrokeListener *listener = cspi_keystroke_listener_new ();
+ AccessibleDeviceListener *listener = cspi_device_listener_new ();
if (callback)
{
- AccessibleKeystrokeListener_addCallback (listener, callback, user_data);
+ AccessibleDeviceListener_addCallback (listener, callback, user_data);
}
return listener;
}
AccessibleKeystrokeListenerCB callback,
void *user_data)
{
- cspi_keystroke_listener_add_cb (listener, callback, user_data);
+ cspi_device_listener_add_cb (listener, callback, user_data);
return TRUE;
}
AccessibleKeystrokeListener_removeCallback (AccessibleKeystrokeListener *listener,
AccessibleKeystrokeListenerCB callback)
{
- cspi_keystroke_listener_remove_cb (listener, callback);
+ cspi_device_listener_remove_cb (listener, callback);
return TRUE;
}
void
AccessibleKeystrokeListener_unref (AccessibleKeystrokeListener *listener)
{
- cspi_keystroke_listener_unref (listener);
+ cspi_device_listener_unref (listener);
+}
+
+/**
+ * SPI_createAccessibleDeviceListener:
+ * @callback : an #AccessibleDeviceListenerCB callback function, or NULL.
+ * @user_data: a pointer to data which will be passed to the callback when invoked.
+ *
+ * Create a new #AccessibleDeviceListener with a specified callback function.
+ *
+ * Returns: a pointer to a newly-created #AccessibleDeviceListener.
+ *
+ **/
+AccessibleDeviceListener *
+SPI_createAccessibleDeviceListener (AccessibleDeviceListenerCB callback,
+ void *user_data)
+{
+ AccessibleDeviceListener *listener = cspi_device_listener_new ();
+ if (callback)
+ {
+ AccessibleDeviceListener_addCallback (listener, callback, user_data);
+ }
+ return listener;
+}
+
+/**
+ * AccessibleDeviceListener_addCallback:
+ * @listener: the #AccessibleDeviceListener instance to modify.
+ * @callback: an #AccessibleDeviceListenerCB function pointer.
+ * @user_data: a pointer to data which will be passed to the callback when invoked.
+ *
+ * Add an in-process callback function to an existing #AccessibleDeviceListener.
+ *
+ * Returns: #TRUE if successful, otherwise #FALSE.
+ *
+ **/
+SPIBoolean
+AccessibleDeviceListener_addCallback (AccessibleDeviceListener *listener,
+ AccessibleDeviceListenerCB callback,
+ void *user_data)
+{
+ cspi_device_listener_add_cb (listener, callback, user_data);
+ return TRUE;
+}
+
+/**
+ * AccessibleDeviceListener_removeCallback:
+ * @listener: the #AccessibleDeviceListener instance to modify.
+ * @callback: an #AccessibleDeviceListenerCB function pointer.
+ *
+ * Remove an in-process callback function from an existing #AccessibleDeviceListener.
+ *
+ * Returns: #TRUE if successful, otherwise #FALSE.
+ *
+ **/
+SPIBoolean
+AccessibleDeviceListener_removeCallback (AccessibleDeviceListener *listener,
+ AccessibleDeviceListenerCB callback)
+{
+ cspi_device_listener_remove_cb (listener, callback);
+ return TRUE;
+}
+
+/**
+ * AccessibleDeviceListener_unref:
+ * @listener: a pointer to the #AccessibleDeviceListener being operated on.
+ *
+ * Decrements an #AccessibleDeviceListener's reference count.
+ **/
+void
+AccessibleDeviceListener_unref (AccessibleDeviceListener *listener)
+{
+ cspi_device_listener_unref (listener);
+}
+
+static char *
+cspi_internal_event_get_text (const InternalEvent *e)
+{
+ CORBA_any *any;
+ g_return_val_if_fail (e, NULL);
+ g_return_val_if_fail (e->data, NULL);
+ any = (CORBA_any *) e->data;
+ if (CORBA_TypeCode_equivalent (any->_type, TC_CORBA_string, NULL))
+ {
+ return CORBA_string_dup (* (char **) any->_value);
+ }
+ else
+ {
+#ifdef EVENT_CONTEXT_DEBUG
+ fprintf (stderr, "requested string, TC is not TC_CORBA_string! (%u)\n",
+ (unsigned) any->_type);
+#endif
+ return NULL;
+ }
+}
+
+static Accessible *
+cspi_internal_event_get_object (const InternalEvent *e)
+{
+ CORBA_any *any;
+
+ g_return_val_if_fail (e, NULL);
+ g_return_val_if_fail (e->data, NULL);
+
+ any = (CORBA_any *) e->data;
+ if (CORBA_TypeCode_equal (any->_type, TC_CORBA_Object, cspi_ev()))
+ return cspi_object_take (* (CORBA_Object *) any->_value);
+ else
+ return NULL;
+}
+
+/**
+ * AccessibleTextChangedEvent_getChangeString:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:text-changed",
+ * returning the text inserted or deleted.
+ *
+ * Returns: a UTF-8 text string indicating the text inserted,
+ * deleted, or substituted by this event.
+ **/
+char *
+AccessibleTextChangedEvent_getChangeString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type? expensive... */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleTextSelectionChangedEvent_getSelectionString:
+ * @event: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:text-selection-changed",
+ * returning the newly added, removed, or modified selection string.
+ *
+ * Returns: a UTF-8 text string indicating the recently changed selection.
+ **/
+char *
+AccessibleTextSelectionChangedEvent_getSelectionString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type? expensive... */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleWindowEvent_getTitleString:
+ * @event: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "window:",
+ * returning the window title.
+ *
+ * Returns: a UTF-8 text string representing the title of the
+ * recently changed window.
+ **/
+char *
+AccessibleWindowEvent_getTitleString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type? expensive... */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleChildChangedEvent_getChildAccessible:
+ * @event: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:children_changed"
+ * to get a reference to the changed #Accessible.
+ * Note that context #Accessibles are not guaranteed to outlive
+ * event delivery, in which case this call may return %NULL
+ * even if the object existed at the time of dispatch.
+ *
+ * Returns: the context #Accessible for the event, or %NULL if
+ * there is no longer a valid context #Accessible
+ * object for the event.
+ **/
+Accessible *
+AccessibleChildChangedEvent_getChildAccessible (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ return (Accessible *) cspi_internal_event_get_object (foo);
+}
+
+/**
+ * AccessibleParentChangedEvent_getParentAccessible:
+ * @event: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:property-change:accessible-parent"
+ * to get a reference to the changed #Accessible.
+ * Note that context #Accessibles are not guaranteed to outlive
+ * event delivery, in which case this call may return %NULL
+ * even if the object existed at the time of dispatch.
+ *
+ * Returns: an #Accessible pointer representing the new parent object.
+ **/
+Accessible *
+AccessibleParentChangedEvent_getParentAccessible (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ return (Accessible *) cspi_internal_event_get_object (foo);
+}
+
+/**
+ * AccessibleActiveDescendantChangedEvent_getActiveDescendant:
+ * @event: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:active-descendant-changed"
+ * to get a reference to the changed #Accessible.
+ * Note that context #Accessibles are not guaranteed to outlive
+ * event delivery, in which case this call may return %NULL
+ * even if the object existed at the time of dispatch.
+ *
+ * Returns: an #Accessible pointer representing the new active descendant.
+ **/
+Accessible *
+AccessibleActiveDescendantChangedEvent_getActiveDescendant (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ return (Accessible *) cspi_internal_event_get_object (foo);
+}
+
+/**
+ * AccessibleTableSummaryChangedEvent_getSummaryAccessible:
+ * @event: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:property-changed:accessible-table-summary"
+ * to get a reference to the changed #Accessible.
+ * Note that context #Accessibles are not guaranteed to outlive
+ * event delivery, in which case this call may return %NULL
+ * even if the object existed at the time of dispatch.
+ *
+ * Returns: an #Accessible pointer representing the new table summary.
+ **/
+Accessible *
+AccessibleTableSummaryChangedEvent_getSummaryAccessible (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ return (Accessible *) cspi_internal_event_get_object (foo);
+}
+
+/**
+ * AccessibleTableHeaderChangedEvent_getHeaderAccessible:
+ * @event: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type
+ * "object:property-changed:accessible-table-row-header" or
+ * "object:property-changed:accessible-table-column-header"
+ * to get a reference to the changed #Accessible.
+ * Note that context #Accessibles are not guaranteed to outlive
+ * event delivery, in which case this call may return %NULL
+ * even if the object existed at the time of dispatch.
+ *
+ * Returns: an #Accessible pointer representing the new table header.
+ **/
+Accessible *
+AccessibleTableHeaderChangedEvent_getHeaderAccessible (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ return (Accessible *) cspi_internal_event_get_object (foo);
+}
+
+
+/**
+ * AccessibleTableCaptionChangedEvent_getCaptionString:
+ * @e: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type
+ * "object:property-changed:accessible-table-caption-object"
+ * returning the text in the caption, if present.
+ *
+ * Returns: a UTF-8 text string indicating the text in the caption.
+ **/
+char *
+AccessibleTableCaptionChangedEvent_getCaptionString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type? expensive... */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleTableRowDescriptionEvent_getDescriptionString:
+ * @event: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type
+ * "object:property-changed:accessible-table-row-description"
+ * returning the new table row description.
+ *
+ * Returns: a UTF-8 text string representing the recently changed
+ * table row description
+ **/
+char *
+AccessibleTableRowDescriptionChangedEvent_getDescriptionString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type? expensive... */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleTableColumnDescriptionEvent_getDescriptionString:
+ * @event: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type
+ * "object:property-changed:accessible-table-column-description"
+ * returning the new table column description.
+ *
+ * Returns: a UTF-8 text string representing the recently changed
+ * table column description
+ **/
+char *
+AccessibleTableColumnDescriptionChangedEvent_getDescriptionString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type? expensive... */
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleDescriptionEvent_getDescriptionString:
+ * @event: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type
+ * "object:property-changed:accessible-description"
+ * returning the new description.
+ *
+ * Returns: a UTF-8 text string representing the recently changed
+ * description
+ **/
+char *
+AccessibleDescriptionChangedEvent_getDescriptionString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type? expensive... */
+ return cspi_internal_event_get_text (foo);
+}
+
+static gint
+cspi_event_compare (gconstpointer p1, gconstpointer p2)
+{
+ const InternalEvent *e1 = p1, *e2 = p2;
+ return (gint) ((long) e2->id - (long) e1->id);
+}
+
+static InternalEvent *
+cspi_internal_event_lookup (const InternalEvent *e)
+{
+ InternalEvent *internal = NULL;
+ GSList *p =
+ g_slist_find_custom (_cspi_event_queue, e, cspi_event_compare);
+ if (p)
+ internal = p->data;
+ return internal;
+}
+
+static const InternalEvent *
+cspi_internal_event_check (const AccessibleEvent *e)
+{
+ InternalEvent *internal = (InternalEvent *) e;
+ if (internal->magic == SPI_INTERNAL_EVENT_MAGIC)
+ return internal;
+ else
+ return NULL;
+}
+
+static InternalEvent *
+cspi_internal_event_add (const InternalEvent *e)
+{
+ _cspi_event_queue = g_slist_prepend (_cspi_event_queue, (gpointer) e);
+ return (InternalEvent *) e;
+}
+
+static void
+cspi_internal_event_remove (const InternalEvent *e)
+{
+ GSList *link = g_slist_find_custom (_cspi_event_queue, e, cspi_event_compare);
+ if (link)
+ _cspi_event_queue = g_slist_remove_link (_cspi_event_queue, link);
+}
+
+/**
+ * AccessibleNameChangedEvent_getNametring:
+ * @event: a pointer to the #AccessibleEvent being queried.
+ *
+ * Queries an #AccessibleEvent of type "object:property-change:accessible_name:",
+ * returning the name.
+ *
+ * Returns: a UTF-8 text string representing the name of the
+ * object which recently changed.
+ **/
+char *
+AccessibleNameChangedEvent_getNameString (const AccessibleEvent *e)
+{
+ const InternalEvent *foo = (InternalEvent *) e;
+ return cspi_internal_event_get_text (foo);
+}
+
+SPIBoolean
+AccessibleEvent_ref (const AccessibleEvent *e)
+{
+ const InternalEvent *private = cspi_internal_event_check (e);
+ if (private)
+ {
+ InternalEvent *event = cspi_internal_event_lookup (private);
+ /*
+ * put event in the cache if it's not there already,
+ * and increment refcount
+ */
+ if (!event)
+ {
+ event = cspi_internal_event_add (private);
+ }
+ event->ref_count++;
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+void
+AccessibleEvent_unref (const AccessibleEvent *e)
+{
+ const InternalEvent *private = cspi_internal_event_check (e);
+ /* decrement refcount and remove if appropriate */
+ if (private)
+ {
+ InternalEvent *event = cspi_internal_event_lookup (private);
+ if (event)
+ {
+ event->ref_count--;
+ if (event->ref_count < 1)
+ cspi_internal_event_remove (event);
+ }
+ }
}
projects / platform / core / uifw / at-spi2-atk.git / blobdiff