593 lines
15 KiB
C
593 lines
15 KiB
C
/* Evolution calendar client
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*
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* Copyright (C) 2000 Helix Code, Inc.
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*
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* Author: Federico Mena-Quintero <federico@helixcode.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <config.h>
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#include <gtk/gtksignal.h>
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#include <libgnorba/gnorba.h>
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#include "cal-client.h"
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#include "cal-listener.h"
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/* Loading state for the calendar client */
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typedef enum {
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LOAD_STATE_NOT_LOADED,
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LOAD_STATE_LOADING,
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LOAD_STATE_LOADED
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} LoadState;
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/* Private part of the CalClient structure */
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typedef struct {
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/* Load state to avoid multiple loads */
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LoadState load_state;
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/* The calendar factory we are contacting */
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Evolution_Calendar_CalFactory factory;
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/* Our calendar listener */
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CalListener *listener;
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/* The calendar client interface object we are contacting */
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Evolution_Calendar_Cal cal;
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} CalClientPrivate;
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/* Signal IDs */
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enum {
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CAL_LOADED,
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OBJ_ADDED,
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OBJ_REMOVED,
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OBJ_CHANGED,
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LAST_SIGNAL
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};
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static void cal_client_class_init (CalClientClass *class);
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static void cal_client_init (CalClient *client);
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static void cal_client_destroy (GtkObject *object);
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static guint cal_client_signals[LAST_SIGNAL];
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static GtkObjectClass *parent_class;
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/**
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* cal_client_get_type:
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* @void:
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*
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* Registers the #CalClient class if necessary, and returns the type ID assigned
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* to it.
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*
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* Return value: The type ID of the #CalClient class.
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**/
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GtkType
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cal_client_get_type (void)
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{
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static GtkType cal_client_type = 0;
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if (!cal_client_type) {
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static const GtkTypeInfo cal_client_info = {
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"CalClient",
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sizeof (CalClient),
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sizeof (CalClientClass),
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(GtkClassInitFunc) cal_client_class_init,
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(GtkObjectInitFunc) cal_client_init,
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NULL, /* reserved_1 */
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NULL, /* reserved_2 */
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(GtkClassInitFunc) NULL
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};
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cal_client_type = gtk_type_unique (GTK_TYPE_OBJECT, &cal_client_info);
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}
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return cal_client_type;
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}
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/* Class initialization function for the calendar client */
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static void
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cal_client_class_init (CalClientClass *class)
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{
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GtkObjectClass *object_class;
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object_class = (GtkObjectClass *) class;
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parent_class = gtk_type_class (GTK_TYPE_OBJECT);
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cal_client_signals[CAL_LOADED] =
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gtk_signal_new ("cal_loaded",
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GTK_RUN_FIRST,
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object_class->type,
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GTK_SIGNAL_OFFSET (CalClientClass, cal_loaded),
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gtk_marshal_NONE__ENUM,
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GTK_TYPE_NONE, 1,
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GTK_TYPE_ENUM);
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cal_client_signals[OBJ_ADDED] =
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gtk_signal_new ("obj_added",
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GTK_RUN_FIRST,
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object_class->type,
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GTK_SIGNAL_OFFSET (CalClientClass, obj_added),
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gtk_marshal_NONE__STRING,
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GTK_TYPE_NONE, 1,
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GTK_TYPE_STRING);
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cal_client_signals[OBJ_REMOVED] =
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gtk_signal_new ("obj_removed",
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GTK_RUN_FIRST,
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object_class->type,
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GTK_SIGNAL_OFFSET (CalClientClass, obj_removed),
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gtk_marshal_NONE__STRING,
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GTK_TYPE_NONE, 1,
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GTK_TYPE_STRING);
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cal_client_signals[OBJ_CHANGED] =
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gtk_signal_new ("obj_changed",
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GTK_RUN_FIRST,
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object_class->type,
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GTK_SIGNAL_OFFSET (CalClientClass, obj_changed),
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gtk_marshal_NONE__STRING,
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GTK_TYPE_NONE, 1,
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GTK_TYPE_STRING);
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gtk_object_class_add_signals (object_class, cal_client_signals, LAST_SIGNAL);
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object_class->destroy = cal_client_destroy;
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}
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/* Object initialization function for the calendar client */
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static void
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cal_client_init (CalClient *client)
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{
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CalClientPrivate *priv;
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priv = g_new0 (CalClientPrivate, 1);
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client->priv = priv;
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priv->factory = CORBA_OBJECT_NIL;
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priv->load_state = LOAD_STATE_NOT_LOADED;
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}
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/* Destroy handler for the calendar client */
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static void
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cal_client_destroy (GtkObject *object)
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{
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CalClient *client;
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CalClientPrivate *priv;
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g_return_if_fail (object != NULL);
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g_return_if_fail (IS_CAL_CLIENT (object));
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client = CAL_CLIENT (object);
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priv = client->priv;
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/* FIXME */
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g_free (priv);
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if (GTK_OBJECT_CLASS (parent_class)->destroy)
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(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
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}
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/* Signal handlers for the listener's signals */
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/* Handle the cal_loaded signal from the listener */
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static void
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cal_loaded_cb (CalListener *listener,
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CalListenerLoadStatus status,
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Evolution_Calendar_Cal cal,
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gpointer data)
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{
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CalClient *client;
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CalClientPrivate *priv;
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CORBA_Environment ev;
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Evolution_Calendar_Cal cal_copy;
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client = CAL_CLIENT (data);
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priv = client->priv;
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g_assert (priv->load_state == LOAD_STATE_LOADING);
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switch (status) {
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case CAL_LISTENER_LOAD_SUCCESS:
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CORBA_exception_init (&ev);
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cal_copy = CORBA_Object_duplicate (cal, &ev);
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if (ev._major != CORBA_NO_EXCEPTION) {
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g_message ("cal_loaded(): could not duplicate the calendar client interface");
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CORBA_exception_free (&ev);
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goto error;
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}
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CORBA_exception_free (&ev);
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priv->cal = cal_copy;
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priv->load_state = LOAD_STATE_LOADED;
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gtk_signal_emit (GTK_OBJECT (client), cal_client_signals[CAL_LOADED],
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CAL_CLIENT_LOAD_SUCCESS);
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goto out;
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case CAL_LISTENER_LOAD_ERROR:
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goto error;
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default:
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g_assert_not_reached ();
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}
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error:
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gtk_object_unref (GTK_OBJECT (priv->listener));
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priv->listener = NULL;
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priv->load_state = LOAD_STATE_NOT_LOADED;
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gtk_signal_emit (GTK_OBJECT (client), cal_client_signals[CAL_LOADED],
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CAL_CLIENT_LOAD_ERROR);
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out:
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g_assert (priv->load_state != LOAD_STATE_LOADING);
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}
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/* Handle the obj_added signal from the listener */
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static void
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obj_added_cb (CalListener *listener, const Evolution_Calendar_CalObjUID uid, gpointer data)
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{
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CalClient *client;
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client = CAL_CLIENT (data);
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gtk_signal_emit (GTK_OBJECT (client), cal_client_signals[OBJ_ADDED], uid);
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}
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/* Handle the obj_removed signal from the listener */
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static void
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obj_removed_cb (CalListener *listener, const Evolution_Calendar_CalObjUID uid, gpointer data)
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{
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CalClient *client;
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client = CAL_CLIENT (data);
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gtk_signal_emit (GTK_OBJECT (client), cal_client_signals[OBJ_REMOVED], uid);
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}
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/* Handle the obj_changed signal from the listener */
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static void
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obj_changed_cb (CalListener *listener, const Evolution_Calendar_CalObjUID uid, gpointer data)
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{
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CalClient *client;
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client = CAL_CLIENT (data);
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gtk_signal_emit (GTK_OBJECT (client), cal_client_signals[OBJ_CHANGED], uid);
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}
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/**
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* cal_client_construct:
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* @client: A calendar client.
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*
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* Constructs a calendar client object by contacting the calendar factory of the
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* calendar server.
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*
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* Return value: The same object as the @client argument, or NULL if the
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* calendar factory could not be contacted.
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**/
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CalClient *
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cal_client_construct (CalClient *client)
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{
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CalClientPrivate *priv;
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Evolution_Calendar_CalFactory factory, factory_copy;
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CORBA_Environment ev;
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int result;
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g_return_val_if_fail (client != NULL, NULL);
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g_return_val_if_fail (IS_CAL_CLIENT (client), NULL);
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priv = client->priv;
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factory = (Evolution_Calendar_CalFactory) goad_server_activate_with_id (
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NULL,
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"calendar:cal-factory",
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GOAD_ACTIVATE_REMOTE,
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NULL);
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CORBA_exception_init (&ev);
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result = CORBA_Object_is_nil (factory, &ev);
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if (ev._major != CORBA_NO_EXCEPTION) {
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g_message ("cal_client_construct(): could not see if the factory is NIL");
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CORBA_exception_free (&ev);
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return NULL;
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}
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CORBA_exception_free (&ev);
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if (result) {
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g_message ("cal_client_construct(): could not contact Tlacuache, "
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"the personal calendar server");
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return NULL;
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}
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CORBA_exception_init (&ev);
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factory_copy = CORBA_Object_duplicate (factory, &ev);
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if (ev._major != CORBA_NO_EXCEPTION) {
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g_message ("cal_client_construct(): could not duplicate the calendar factory");
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CORBA_exception_free (&ev);
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return NULL;
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}
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CORBA_exception_free (&ev);
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priv->factory = factory_copy;
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return client;
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}
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/**
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* cal_client_new:
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* @void:
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*
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* Creates a new calendar client. It should be initialized by calling
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* cal_client_load_calendar() or cal_client_create_calendar().
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*
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* Return value: A newly-created calendar client, or NULL if the client could
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* not be constructed because it could not contact the calendar server.
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**/
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CalClient *
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cal_client_new (void)
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{
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CalClient *client;
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client = gtk_type_new (CAL_CLIENT_TYPE);
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if (!cal_client_construct (client)) {
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g_message ("cal_client_new(): could not construct the calendar client");
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gtk_object_unref (GTK_OBJECT (client));
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return NULL;
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}
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return client;
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}
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/**
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* cal_client_load_calendar:
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* @client: A calendar client.
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* @str_uri: URI of calendar to load.
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*
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* Makes a calendar client initiate a request to load a calendar. The calendar
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* client will emit the "cal_loaded" signal when the response from the server is
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* received.
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*
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* Return value: TRUE on success, FALSE on failure to issue the load request.
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**/
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gboolean
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cal_client_load_calendar (CalClient *client, const char *str_uri)
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{
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CalClientPrivate *priv;
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Evolution_Calendar_Listener corba_listener;
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CORBA_Environment ev;
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g_return_val_if_fail (client != NULL, FALSE);
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g_return_val_if_fail (IS_CAL_CLIENT (client), FALSE);
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priv = client->priv;
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g_return_val_if_fail (priv->load_state == LOAD_STATE_NOT_LOADED, FALSE);
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g_return_val_if_fail (str_uri != NULL, FALSE);
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priv->listener = cal_listener_new ();
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if (!priv->listener) {
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g_message ("cal_client_load_calendar(): could not create the listener");
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return FALSE;
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}
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gtk_signal_connect (GTK_OBJECT (priv->listener), "cal_loaded",
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GTK_SIGNAL_FUNC (cal_loaded_cb),
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client);
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gtk_signal_connect (GTK_OBJECT (priv->listener), "obj_added",
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GTK_SIGNAL_FUNC (obj_added_cb),
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client);
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gtk_signal_connect (GTK_OBJECT (priv->listener), "obj_removed",
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GTK_SIGNAL_FUNC (obj_removed_cb),
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client);
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gtk_signal_connect (GTK_OBJECT (priv->listener), "obj_changed",
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GTK_SIGNAL_FUNC (obj_changed_cb),
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client);
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corba_listener = (Evolution_Calendar_Listener) bonobo_object_corba_objref (
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BONOBO_OBJECT (priv->listener));
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CORBA_exception_init (&ev);
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priv->load_state = LOAD_STATE_LOADING;
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Evolution_Calendar_CalFactory_load (priv->factory, str_uri, corba_listener, &ev);
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if (ev._major != CORBA_NO_EXCEPTION) {
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g_message ("cal_client_load_calendar(): load request failed");
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gtk_object_unref (GTK_OBJECT (priv->listener));
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priv->listener = NULL;
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priv->load_state = LOAD_STATE_NOT_LOADED;
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CORBA_exception_free (&ev);
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return FALSE;
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}
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CORBA_exception_free (&ev);
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return TRUE;
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}
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/**
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* cal_client_get_object:
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* @client: A calendar client.
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* @uid: Unique identifier for a calendar object.
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*
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* Queries a calendar for a calendar object based on its unique identifier.
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*
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* Return value: The string representation of a complete calendar wrapping the
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* sought object, or NULL if no object had the specified UID. A complete
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* calendar is returned because you also need the timezone data.
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**/
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char *
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cal_client_get_object (CalClient *client, const char *uid)
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{
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CalClientPrivate *priv;
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CORBA_Environment ev;
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Evolution_Calendar_CalObj calobj;
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char *retval;
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g_return_val_if_fail (client != NULL, NULL);
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g_return_val_if_fail (IS_CAL_CLIENT (client), NULL);
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priv = client->priv;
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g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, NULL);
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g_return_val_if_fail (uid != NULL, NULL);
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retval = NULL;
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CORBA_exception_init (&ev);
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calobj = Evolution_Calendar_Cal_get_object (priv->cal, uid, &ev);
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if (ev._major == CORBA_USER_EXCEPTION
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&& strcmp (CORBA_exception_id (&ev), ex_Evolution_Calendar_Cal_NotFound) == 0)
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goto out;
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else if (ev._major != CORBA_NO_EXCEPTION) {
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g_message ("cal_client_get_object(): could not get the object");
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goto out;
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}
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retval = g_strdup (calobj);
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out:
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CORBA_exception_free (&ev);
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return retval;
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}
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/**
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* cal_client_get_uids:
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* @client: A calendar client.
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* @type: Bitmask with types of objects to return.
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*
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* Queries a calendar for a list of unique identifiers corresponding to calendar
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* objects whose type matches one of the types specified in the @type flags.
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*
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* Return value: A list of strings that are the sought UIDs.
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**/
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GList *
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cal_client_get_uids (CalClient *client, CalObjType type)
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{
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CalClientPrivate *priv;
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CORBA_Environment ev;
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Evolution_Calendar_CalObjUIDSeq *seq;
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int t;
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GList *uids;
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int i;
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g_return_val_if_fail (client != NULL, NULL);
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g_return_val_if_fail (IS_CAL_CLIENT (client), NULL);
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priv = client->priv;
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g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, NULL);
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t = (((type & CALOBJ_TYPE_EVENT) ? Evolution_Calendar_TYPE_EVENT : 0)
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| ((type & CALOBJ_TYPE_TODO) ? Evolution_Calendar_TYPE_TODO : 0)
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| ((type & CALOBJ_TYPE_JOURNAL) ? Evolution_Calendar_TYPE_JOURNAL : 0)
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| ((type & CALOBJ_TYPE_OTHER) ? Evolution_Calendar_TYPE_OTHER : 0)
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| ((type & CALOBJ_TYPE_ANY) ? Evolution_Calendar_TYPE_ANY : 0));
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CORBA_exception_init (&ev);
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seq = Evolution_Calendar_Cal_get_uids (priv->cal, t, &ev);
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if (ev._major != CORBA_NO_EXCEPTION) {
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g_message ("cal_client_get_uids(): could not get the list of UIDs");
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CORBA_exception_free (&ev);
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return NULL;
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}
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/* Create the list */
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uids = NULL;
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for (i = 0; i < seq->_length; i++)
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uids = g_list_prepend (uids, g_strdup (seq->_buffer[i]));
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CORBA_free (seq);
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return uids;
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}
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/**
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* cal_client_get_events_in_range:
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* @client: A calendar client.
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* @start: Start time for query.
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* @end: End time for query.
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*
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* Queries a calendar for the events that occur or recur in the specified range
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* of time.
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*
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* Return value: A list of #CalObjInstance structures.
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**/
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GList *
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cal_client_get_events_in_range (CalClient *client, time_t start, time_t end)
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{
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CalClientPrivate *priv;
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CORBA_Environment ev;
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Evolution_Calendar_CalObjInstanceSeq *seq;
|
||
GList *elist;
|
||
int i;
|
||
|
||
g_return_val_if_fail (client != NULL, NULL);
|
||
g_return_val_if_fail (IS_CAL_CLIENT (client), NULL);
|
||
|
||
priv = client->priv;
|
||
g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, NULL);
|
||
|
||
g_return_val_if_fail (start != -1 && end != -1, NULL);
|
||
g_return_val_if_fail (start <= end, NULL);
|
||
|
||
priv = client->priv;
|
||
|
||
CORBA_exception_init (&ev);
|
||
|
||
seq = Evolution_Calendar_Cal_get_events_in_range (priv->cal, start, end, &ev);
|
||
if (ev._major != CORBA_NO_EXCEPTION) {
|
||
g_message ("cal_client_get_events_in_range(): could not get the event range");
|
||
CORBA_exception_free (&ev);
|
||
return NULL;
|
||
}
|
||
CORBA_exception_free (&ev);
|
||
|
||
/* Create the list in reverse order */
|
||
|
||
elist = NULL;
|
||
|
||
for (i = 0; i < seq->_length; i++) {
|
||
Evolution_Calendar_CalObjInstance *corba_icoi;
|
||
CalObjInstance *icoi;
|
||
|
||
corba_icoi = &seq->_buffer[i];
|
||
icoi = g_new (CalObjInstance, 1);
|
||
|
||
icoi->uid = g_strdup (corba_icoi->uid);
|
||
icoi->calobj = g_strdup (corba_icoi->calobj);
|
||
icoi->start = corba_icoi->start;
|
||
icoi->end = corba_icoi->end;
|
||
|
||
elist = g_list_prepend (elist, icoi);
|
||
}
|
||
|
||
CORBA_free (seq);
|
||
elist = g_list_reverse (elist);
|
||
|
||
return elist;
|
||
}
|