-
/*
*
* Basic SPI initialization and event loop function prototypes
*
*/
+#include <string.h>
+#include <stdlib.h>
+#include <cspi/spi-private.h>
+
+#undef DEBUG_OBJECTS
+
+static CORBA_Environment ev = { 0 };
+static Accessibility_Registry registry = CORBA_OBJECT_NIL;
+static GHashTable *live_refs = NULL;
+
+static guint
+cspi_object_hash (gconstpointer key)
+{
+ CORBA_Object object = (CORBA_Object) key;
+ guint retval;
+
+ retval = CORBA_Object_hash (object, 0, &ev);
+
+ return retval;
+}
+
+static gboolean
+cspi_object_equal (gconstpointer a, gconstpointer b)
+{
+ CORBA_Object objecta = (CORBA_Object) a;
+ CORBA_Object objectb = (CORBA_Object) b;
+ gboolean retval;
+
+ retval = CORBA_Object_is_equivalent (objecta, objectb, &ev);
+
+ return retval;
+}
+
+static void
+cspi_object_release (gpointer value)
+{
+ Accessible *a = (Accessible *) value;
+
+#ifdef DEBUG_OBJECTS
+ g_print ("releasing %p => %p\n", a, a->objref);
+#endif
+
+ cspi_release_unref (a->objref);
+
+ memset (a, 0xaa, sizeof (Accessible));
+ a->ref_count = -1;
+
+#ifndef DEBUG_OBJECTS
+ free (a);
+#endif
+}
+
+SPIBoolean
+cspi_accessible_is_a (Accessible *obj,
+ const char *interface_name)
+{
+ SPIBoolean retval;
+ Bonobo_Unknown unknown;
+
+ if (obj == NULL)
+ {
+ return FALSE;
+ }
+
+ unknown = Bonobo_Unknown_queryInterface (CSPI_OBJREF (obj),
+ interface_name, cspi_ev ());
+
+ if (ev._major != CORBA_NO_EXCEPTION)
+ {
+ g_error ("Exception '%s' checking if is '%s'",
+ cspi_exception_get_text (),
+ interface_name);
+ }
+
+ if (unknown != CORBA_OBJECT_NIL)
+ {
+ retval = TRUE;
+ cspi_release_unref (unknown);
+ }
+ else
+ {
+ retval = FALSE;
+ }
+
+ return retval;
+}
+
+static GHashTable *
+cspi_get_live_refs (void)
+{
+ if (!live_refs)
+ {
+ live_refs = g_hash_table_new_full (cspi_object_hash,
+ cspi_object_equal,
+ NULL,
+ cspi_object_release);
+ }
+ return live_refs;
+}
+
+CORBA_Environment *
+cspi_ev (void)
+{
+ /* This method is an ugly hack */
+ return &ev;
+}
+
+Accessibility_Registry
+cspi_registry (void)
+{
+ return registry;
+}
+
+SPIBoolean
+cspi_exception (void)
+{
+ SPIBoolean retval;
+
+ if (ev._major != CORBA_NO_EXCEPTION)
+ {
+ CORBA_exception_free (&ev);
+ retval = TRUE;
+ }
+ else
+ {
+ retval = FALSE;
+ }
+
+ return retval;
+}
+
+Accessible *
+cspi_object_add (CORBA_Object corba_object)
+{
+ Accessible *ref;
+
+ if (corba_object == CORBA_OBJECT_NIL)
+ {
+ ref = NULL;
+ }
+ else if (!cspi_check_ev ("pre method check"))
+ {
+ ref = NULL;
+ }
+ else
+ {
+ if ((ref = g_hash_table_lookup (cspi_get_live_refs (), corba_object)))
+ {
+ g_assert (ref->ref_count > 0);
+ ref->ref_count++;
+ cspi_release_unref (corba_object);
+#ifdef DEBUG_OBJECTS
+ g_print ("returning cached %p => %p\n", ref, ref->objref);
+#endif
+ }
+ else
+ {
+ ref = malloc (sizeof (Accessible));
+
+#ifdef DEBUG_OBJECTS
+ g_print ("allocating %p => %p\n", ref, corba_object);
+#endif
+
+ ref->objref = corba_object;
+ ref->ref_count = 1;
+
+ g_hash_table_insert (cspi_get_live_refs (), ref->objref, ref);
+ }
+ }
+
+ return ref;
+}
+
+void
+cspi_object_ref (Accessible *accessible)
+{
+ g_return_if_fail (accessible != NULL);
+
+ accessible->ref_count++;
+}
+
+void
+cspi_object_unref (Accessible *accessible)
+{
+ if (accessible == NULL)
+ {
+ return;
+ }
+
+ if (--accessible->ref_count == 0)
+ {
+ g_hash_table_remove (cspi_get_live_refs (), accessible->objref);
+ }
+}
+
+static void
+cspi_cleanup (void)
+{
+ GHashTable *refs;
+
+ refs = live_refs;
+ live_refs = NULL;
+ if (refs)
+ {
+ g_hash_table_destroy (refs);
+ }
+
+ if (registry != CORBA_OBJECT_NIL)
+ {
+ cspi_release_unref (registry);
+ registry = CORBA_OBJECT_NIL;
+ }
+}
+
+static gboolean SPI_inited = FALSE;
/**
* SPI_init:
int
SPI_init (void)
{
- int argc = 0;
- CORBA_Object oclient;
- char *obj_id;
-
- CORBA_exception_init(&ev);
-
- if (!bonobo_init (&argc, NULL))
+ if (SPI_inited)
{
- g_error ("Could not initialize Bonobo");
+ return 1;
}
- obj_id = "OAFIID:Accessibility_Registry:proto0.1";
-
- oclient = bonobo_activation_activate_from_id (obj_id, 0, NULL, &ev);
- if (ev._major != CORBA_NO_EXCEPTION) {
- fprintf (stderr,
- ("AT-SPI error: during registry activation: %s\n"),
- CORBA_exception_id(&ev));
- CORBA_exception_free(&ev);
- exit(-1);
- }
+ SPI_inited = TRUE;
- if (CORBA_Object_is_nil (oclient, &ev))
- {
- g_error ("Could not locate registry");
- exit(-1);
- }
+ CORBA_exception_init (&ev);
- registry = (Accessibility_Registry) oclient;
-
- bonobo_activate ();
+ registry = cspi_init ();
+ g_atexit (cspi_cleanup);
+
return 0;
}
/**
* SPI_event_main:
- * @isGNOMEApp: a #boolean indicating whether the client of the SPI
- * will use the Gnome event loop or not.
*
* Starts/enters the main event loop for the SPI services.
*
- * (NOTE: This method does not return control, it is exited via a call to exit()
- * from within an event handler).
+ * (NOTE: This method does not return control, it is exited via a call to
+ * SPI_event_quit () from within an event handler).
+ *
+ **/
+void
+SPI_event_main (void)
+{
+ cspi_main ();
+}
+
+/**
+ * SPI_event_quit:
*
+ * Quits the last main event loop for the SPI services,
+ * see SPI_event_main
**/
void
-SPI_event_main (boolean isGNOMEApp)
+SPI_event_quit (void)
{
- if (isGNOMEApp) {
- g_atexit(SPI_exit);
- bonobo_main();
- }
- else {
- /* TODO: install signal handlers to do cleanup */
- CORBA_ORB_run (bonobo_orb(), &ev);
- fprintf (stderr, "orb loop exited...\n");
- }
+ cspi_main_quit ();
}
/**
- * SPI_event_is_ready:
+ * SPI_eventIsReady:
*
* Checks to see if an SPI event is waiting in the event queue.
* Used by clients that don't wish to use SPI_event_main().
+ *
* Not Yet Implemented.
*
* Returns: #TRUE if an event is waiting, otherwise #FALSE.
*
**/
-boolean
+SPIBoolean
SPI_eventIsReady ()
{
return FALSE;
/**
* SPI_nextEvent:
+ * @waitForEvent: a #SPIBoolean indicating whether to block or not.
*
* Gets the next event in the SPI event queue; blocks if no event
- * is pending.
+ * is pending and @waitForEvent is #TRUE.
* Used by clients that don't wish to use SPI_event_main().
+ *
* Not Yet Implemented.
*
* Returns: the next #AccessibleEvent in the SPI event queue.
- *
**/
AccessibleEvent *
-SPI_nextEvent (boolean waitForEvent)
+SPI_nextEvent (SPIBoolean waitForEvent)
{
return NULL;
}
/**
* SPI_exit:
*
- * Disconnects from the Accessibility Registry and releases resources.
- * Not Yet Implemented.
+ * Disconnects from the Accessibility Registry and releases
+ * any floating resources. Call only once at exit.
*
+ * Returns: 0 if there were no leaks, otherwise non zero.
**/
-void
+int
SPI_exit (void)
{
- fprintf (stderr, "bye-bye!\n");
- exit(0);
+ int leaked;
+
+ if (!SPI_inited)
+ {
+ return 0;
+ }
+
+ SPI_inited = FALSE;
+
+ if (live_refs)
+ {
+ leaked = g_hash_table_size (live_refs);
+ }
+ else
+ {
+ leaked = 0;
+ }
+
+#ifdef DEBUG_OBJECTS
+ if (leaked)
+ {
+ fprintf (stderr, "Leaked %d SPI handles\n", leaked);
+ }
+#endif
+
+ cspi_cleanup ();
+
+ fprintf (stderr, "bye-bye!\n");
+
+ return leaked;
}
+/**
+ * SPI_freeString:
+ * @s: a character string returned from another at-spi call.
+ *
+ * Free a character string returned from an at-spi call. Clients of
+ * at-spi should use this function instead of free () or g_free().
+ * This API should not be used to free strings
+ * from other libraries or allocated by the client.
+ **/
+void
+SPI_freeString (char *s)
+{
+ CORBA_free (s);
+}
projects / platform / core / uifw / at-spi2-atk.git / blobdiff