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authorFederico Mena Quintero <federico@helixcode.com>2000-01-19 11:32:45 +0800
committerArturo Espinosa <unammx@src.gnome.org>2000-01-19 11:32:45 +0800
commitbd4e64bd780fc0e39832f5c5abf1a15522fa6076 (patch)
tree927a0247d1a123aef71d576d84e71dd9d9cbfd39 /calendar/cal.c
parenta943a5c706c2dcf6956129838c8b4e5f95de93f4 (diff)
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Moved the calendar backend here. This is the actual calendar-handling
2000-01-18 Federico Mena Quintero <federico@helixcode.com> * cal-backend.c cal-backend.h: Moved the calendar backend here. This is the actual calendar-handling object. (load_from_vobject): Moved over from calendar.c. Modified to use a CalBackend instead of the old Calendar structure. (add_object): Likewise. * cal.c: Now the Cal object is just a calendar client interface object; we use it as a "viewport" onto a CalBackend. This also lets us do correct resource management. * cal-common.h: New file with common forward declarations; we can't have circular dependencies between headers. 2000-01-18 Federico Mena Quintero <federico@helixcode.com> * cal-factory.c (cal_factory_load): Queue a load job. (load_fn): Load job handler. Lookup the calendar by URI, load it if it is not loaded, or just report it to the new listener if it is. * job.c job.h: New files with a simple job queue manager. * gnome-calendar.idl (Listener::cal_loaded): Do not return the whole calendar object string. The client will be able to query the calendar for the events it needs. * cal-listener.c (Listener_cal_loaded): Ref the calendar GNOME object. We unref it when the listener is destroyed. 2000-01-17 Federico Mena Quintero <federico@helixcode.com> The files from the gncal directory of the gnome-pim module on CVS were moved here, to evolution/calendar, in preparation for the Evolution work. The calendar is being split into a model/view architecture. The model is a personal calendar server (PAS): it provides storage, notification, and event generation; the views/controllers are the calendar user agents and things like Pilot synchronizers. svn path=/trunk/; revision=1591
Diffstat (limited to 'calendar/cal.c')
-rw-r--r--calendar/cal.c152
1 files changed, 73 insertions, 79 deletions
diff --git a/calendar/cal.c b/calendar/cal.c
index 3394ead5d8..26c0581ff7 100644
--- a/calendar/cal.c
+++ b/calendar/cal.c
@@ -1,4 +1,4 @@
-/* GNOME calendar object
+/* GNOME calendar client interface object
*
* Copyright (C) 2000 Helix Code, Inc.
*
@@ -21,16 +21,17 @@
#include <config.h>
#include "cal.h"
+#include "cal-backend.h"
/* Private part of the Cal structure */
typedef struct {
- /* The URI where this calendar is stored */
- char *uri;
+ /* Our backend */
+ CalBackend *backend;
- /* List of listeners for this calendar */
- GList *listeners;
+ /* Listener on the client we notify */
+ GNOME_Calendar_listener listener;
} CalPrivate;
@@ -71,7 +72,7 @@ cal_get_type (void)
(GtkClassInitFunc) NULL
};
- cal_type = gtk_type_unique (gnome_object_get_type (), &cal_info);
+ cal_type = gtk_type_unique (GNOME_OBJECT_TYPE, &cal_info);
}
return cal_type;
@@ -93,7 +94,7 @@ cal_class_init (CalClass *class)
object_class = (GtkObjectClass *) class;
- parent_class = gtk_type_class (gnome_object_get_type ());
+ parent_class = gtk_type_class (GNOME_OBJECT_TYPE);
object_class->destroy = cal_destroy;
@@ -108,6 +109,8 @@ cal_init (Cal *cal)
priv = g_new0 (CalPrivate, 1);
cal->priv = priv;
+
+ priv->listener = CORBA_OBJECT_NIL;
}
/* Destroy handler for the calendar */
@@ -183,35 +186,47 @@ cal_get_epv (void)
-/* Returns whether a CORBA object is nil */
-static gboolean
-corba_object_is_nil (CORBA_Object object)
-{
- CORBA_Environment ev;
- gboolean retval;
-
- CORBA_exception_init (&ev);
- retval = CORBA_Object_is_nil (object, &ev);
- CORBA_exception_free (&ev);
-
- return retval;
-}
-
/**
* cal_construct:
- * @cal: A calendar.
+ * @cal: A calendar client interface.
* @corba_cal: CORBA object for the calendar.
+ * @backend: Calendar backend that this @cal presents an interface to.
+ * @listener: Calendar listener for notification.
*
- * Constructs a calendar by binding the corresponding CORBA object to it.
+ * Constructs a calendar client interface object by binding the corresponding
+ * CORBA object to it. The calendar interface is bound to the specified
+ * @backend, and will notify the @listener about changes to the calendar.
*
* Return value: The same object as the @cal argument.
**/
Cal *
-cal_construct (Cal *cal, GNOME_Calendar_Cal corba_cal)
+cal_construct (Cal *cal,
+ GNOME_Calendar_Cal corba_cal,
+ CalBackend *backend,
+ GNOME_Calendar_Listener listener)
{
+ CalPrivate *priv;
+ CORBA_Environment ev;
+
g_return_val_if_fail (cal != NULL, NULL);
g_return_val_if_fail (IS_CAL (cal), NULL);
- g_return_val_if_fail (!corba_object_is_nil (corba_cal), NULL);
+ g_return_val_if_fail (backend != NULL);
+ g_return_val_if_fail (IS_CAL_BACKEND (backend));
+
+ priv = cal->priv;
+
+ CORBA_exception_init (&ev);
+ priv->listener = CORBA_Object_duplicate (listener, &ev);
+ if (ev._major != CORBA_NO_EXCEPTION) {
+ g_message ("cal_construct: could not duplicate the listener");
+ priv->listener = CORBA_OBJECT_NIL;
+ CORBA_exception_free (&ev);
+ return NULL;
+ }
+
+ CORBA_exception_free (&ev);
+
+ priv->backend = backend;
gnome_object_construct (GNOME_OBJECT (cal), corba_cal);
return cal;
@@ -222,7 +237,7 @@ cal_construct (Cal *cal, GNOME_Calendar_Cal corba_cal)
* @object: #GnomeObject that will wrap the CORBA object.
*
* Creates and activates the CORBA object that is wrapped by the specified
- * calendar @object.
+ * calendar client interface @object.
*
* Return value: An activated object reference or #CORBA_OBJECT_NIL in case of
* failure.
@@ -242,6 +257,7 @@ cal_corba_object_create (GnomeObject *object)
CORBA_exception_init (&ev);
POA_GNOME_Calendar_Cal__init ((PortableServer_Servant) servant, &ev);
if (ev._major != CORBA_NO_EXCEPTION) {
+ g_message ("cal_corba_object_create(): could not init the servant");
g_free (servant);
CORBA_exception_free (&ev);
return CORBA_OBJECT_NIL;
@@ -252,69 +268,47 @@ cal_corba_object_create (GnomeObject *object)
}
/**
- * cal_add_listener:
- * @cal: A calendar.
- * @listener: A listener.
+ * cal_new:
+ * @backend: A calendar backend.
+ * @listener: A calendar listener.
+ *
+ * Creates a new calendar client interface object and binds it to the specified
+ * @backend and @listener objects.
*
- * Adds a listener for changes to a calendar. The specified listener object
- * will be used for notification when objects are added, removed, or changed in
- * the calendar.
+ * Return value: A newly-created #Cal calendar client interface object, or NULL
+ * if its corresponding CORBA object could not be created.
**/
-void
-cal_add_listener (Cal *cal, GNOME_Calendar_Listener listener)
+Cal *
+cal_new (CalBackend *backend, GNOME_Calendar_Listener listener)
{
- CalPrivate *priv;
+ Cal *cal, *retval;
+ GNOME_Calendar_Cal corba_cal;
CORBA_Environment ev;
+ gboolean ret;
- g_return_if_fail (cal != NULL);
- g_return_if_fail (IS_CAL (cal));
- g_return_if_fail (!corba_object_is_nil (listener));
+ g_return_val_if_fail (backend != NULL);
+ g_return_val_if_fail (IS_CAL_BACKEND (backend));
- priv = cal->priv;
+ cal = CAL (gtk_type_new (CAL_TYPE));
+ corba_cal = cal_corba_object_create (GNOME_OBJECT (cal));
CORBA_exception_init (&ev);
-
- GNOME_Unknown_ref (listener, &ev);
- priv->listeners = g_list_prepend (priv->listeners, CORBA_Object_duplicate (listener, &ev));
+ ret = CORBA_object_is_nil (corba_cal, &ev);
+ if (ev._major != CORBA_NO_EXCEPTION || ret) {
+ g_message ("cal_new(): could not create the CORBA object");
+ gtk_object_unref (GTK_OBJECT (cal));
+ CORBA_exception_free (&ev);
+ return NULL;
+ }
CORBA_exception_free (&ev);
-}
-/**
- * cal_remove_listener:
- * @cal: A calendar.
- * @listener: A listener.
- *
- * Removes a listener from a calendar so that no more notification events will
- * be sent to the listener.
- **/
-void
-cal_remove_listener (Cal *cal, GNOME_Calendar_Listener listener)
-{
- CalPrivate *priv;
- CORBA_Environment ev;
- GList *l;
-
- g_return_if_fail (cal != NULL);
- g_return_if_fail (IS_CAL (cal));
-
- priv = cal->priv;
-
- CORBA_exception_init (&ev);
-
- /* FIXME: CORBA_Object_is_equivalent() is not what one thinks. This
- * code could fail in situtations subtle enough that I don't understand
- * them. Someone has to figure out the standard CORBA idiom for
- * listeners or notification.
- */
- for (l = priv->listeners; l; l = l->next)
- if (CORBA_Object_is_equivalent (listener, l->data)) {
- GNOME_Unknown_unref (listener, &ev);
- CORBA_Object_release (listener, &ev);
- priv->listeners = g_list_remove_link (priv->listeners, l);
- g_list_free_1 (l);
- break;
- }
+ retval = cal_construct (cal, corba_cal, backend, listener);
+ if (!retval) {
+ g_message ("cal_new(): could not construct the calendar client interface");
+ gtk_object_unref (cal);
+ return NULL;
+ }
- CORBA_exception_free (&ev);
+ return retval;
}