* AT-SPI - Assistive Technology Service Provider Interface
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
- * Copyright 2001, 2002 Sun Microsystems Inc.,
- * Copyright 2001, 2002 Ximian, 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:
* @keyset: An AccessibleKeyset to free.
any = (CORBA_any *) e->data;
if (CORBA_TypeCode_equivalent (any->_type, TC_CORBA_string, NULL))
{
- return * (char **) any->_value;
+ return CORBA_string_dup (* (char **) any->_value);
}
else
{
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 (any->_type == TC_CORBA_Object)
- return cspi_object_add (* (CORBA_Object *) any->_value);
+ if (CORBA_TypeCode_equal (any->_type, TC_CORBA_Object, cspi_ev()))
+ return cspi_object_take (* (CORBA_Object *) any->_value);
else
return NULL;
}
/**
* AccessibleTextChangedEvent_getChangeString:
- * @event: a pointer to the #AccessibleEvent being queried.
+ * @e: a pointer to the #AccessibleEvent being queried.
*
* Queries an #AccessibleEvent of type "object:text-changed",
* returning the text inserted or deleted.
AccessibleTextChangedEvent_getChangeString (const AccessibleEvent *e)
{
const InternalEvent *foo = (InternalEvent *) e;
- /* TODO: check the event type? expensive... */
+ /* TODO: check the event type. */
return cspi_internal_event_get_text (foo);
}
/**
* AccessibleTextSelectionChangedEvent_getSelectionString:
- * @event: a pointer to the #AccessibleEvent being queried.
+ * @e: 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.
AccessibleTextSelectionChangedEvent_getSelectionString (const AccessibleEvent *e)
{
const InternalEvent *foo = (InternalEvent *) e;
- /* TODO: check the event type? expensive... */
+ /* TODO: check the event type. */
return cspi_internal_event_get_text (foo);
}
/**
* AccessibleWindowEvent_getTitleString:
- * @event: a pointer to the #AccessibleEvent being queried.
+ * @e: a pointer to the #AccessibleEvent being queried.
*
* Queries an #AccessibleEvent of type "window:",
* returning the window title.
AccessibleWindowEvent_getTitleString (const AccessibleEvent *e)
{
const InternalEvent *foo = (InternalEvent *) e;
- /* TODO: check the event type? expensive... */
+ /* TODO: check the event type. */
return cspi_internal_event_get_text (foo);
}
/**
* AccessibleChildChangedEvent_getChildAccessible:
- * @event: a pointer to the #AccessibleEvent being queried.
+ * @e: a pointer to the #AccessibleEvent being queried.
*
* Queries an #AccessibleEvent of type "object:children_changed"
* to get a reference to the changed #Accessible.
/**
* AccessibleParentChangedEvent_getParentAccessible:
- * @event: a pointer to the #AccessibleEvent being queried.
+ * @e: a pointer to the #AccessibleEvent being queried.
*
- * Queries an #AccessibleEvent of type "object:parent_changed"
+ * 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
return (Accessible *) cspi_internal_event_get_object (foo);
}
-/** NEED TO DOCUMENT THESE **/
-
+/**
+ * AccessibleActiveDescendantChangedEvent_getActiveDescendant:
+ * @e: 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)
{
return (Accessible *) cspi_internal_event_get_object (foo);
}
+/**
+ * AccessibleTableSummaryChangedEvent_getSummaryAccessible:
+ * @e: 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)
{
return (Accessible *) cspi_internal_event_get_object (foo);
}
+/**
+ * AccessibleTableHeaderChangedEvent_getHeaderAccessible:
+ * @e: 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)
{
- return NULL;
+ 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)
{
- return NULL;
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type. */
+ return cspi_internal_event_get_text (foo);
}
+/**
+ * AccessibleTableRowDescriptionChangedEvent_getDescriptionString:
+ * @e: 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)
{
- return NULL;
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type. */
+ return cspi_internal_event_get_text (foo);
}
+/**
+ * AccessibleTableColumnDescriptionChangedEvent_getDescriptionString:
+ * @e: 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)
{
- return NULL;
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type. */
+ return cspi_internal_event_get_text (foo);
}
+/**
+ * AccessibleDescriptionChangedEvent_getDescriptionString:
+ * @e: 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)
{
- return NULL;
+ const InternalEvent *foo = (InternalEvent *) e;
+ /* TODO: check the event type. */
+ 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_getNameString:
+ * @e: 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)
{
- return NULL;
+ const InternalEvent *foo = (InternalEvent *) e;
+ return cspi_internal_event_get_text (foo);
+}
+
+/**
+ * AccessibleEvent_ref:
+ * @e: a pointer to the #AccessibleEvent being referenced.
+ *
+ * Increments by 1 the reference count of the event
+ *
+ * Returns: TRUE if the function succeeded; FALSE if the pointer is not a
+ * valid event.
+ **/
+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;
}
+/**
+ * AccessibleEvent_unref:
+ * @e: a pointer to the #AccessibleEvent being referenced.
+ *
+ * Decrements by 1 the reference count of the event. The event is destroyed
+ * when the reference count recahes zero.
+ *
+ **/
+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);
+ g_free ((gpointer)e->type);
+ Accessible_unref (e->source);
+ CORBA_free (event->data);
+ g_free ((gpointer)e);
+ }
+ }
+ }
+}
projects / platform / core / uifw / at-spi2-atk.git / blobdiff