diff options
Diffstat (limited to 'calendar/cal-client/cal-client.c')
| -rw-r--r-- | calendar/cal-client/cal-client.c | 1408 |
1 files changed, 0 insertions, 1408 deletions
diff --git a/calendar/cal-client/cal-client.c b/calendar/cal-client/cal-client.c deleted file mode 100644 index 3e7daf80c4..0000000000 --- a/calendar/cal-client/cal-client.c +++ /dev/null @@ -1,1408 +0,0 @@ - -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* Evolution calendar client - * - * Copyright (C) 2000 Helix Code, Inc. - * - * Author: Federico Mena-Quintero <federico@helixcode.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. - */ - -#include <config.h> -#include <gtk/gtksignal.h> -#include <liboaf/liboaf.h> - -#include "cal-client.h" -#include "cal-listener.h" - - - -/* Loading state for the calendar client */ -typedef enum { - LOAD_STATE_NOT_LOADED, - LOAD_STATE_LOADING, - LOAD_STATE_LOADED -} LoadState; - -/* Private part of the CalClient structure */ -struct _CalClientPrivate { - /* Load state to avoid multiple loads */ - LoadState load_state; - - /* The calendar factory we are contacting */ - Evolution_Calendar_CalFactory factory; - - /* Our calendar listener */ - CalListener *listener; - - /* The calendar client interface object we are contacting */ - Evolution_Calendar_Cal cal; -}; - - - -/* Signal IDs */ -enum { - CAL_LOADED, - OBJ_UPDATED, - OBJ_REMOVED, - LAST_SIGNAL -}; - -static void cal_client_class_init (CalClientClass *class); -static void cal_client_init (CalClient *client); -static void cal_client_destroy (GtkObject *object); - -static guint cal_client_signals[LAST_SIGNAL]; - -static GtkObjectClass *parent_class; - - - -/** - * cal_client_get_type: - * @void: - * - * Registers the #CalClient class if necessary, and returns the type ID assigned - * to it. - * - * Return value: The type ID of the #CalClient class. - **/ -GtkType -cal_client_get_type (void) -{ - static GtkType cal_client_type = 0; - - if (!cal_client_type) { - static const GtkTypeInfo cal_client_info = { - "CalClient", - sizeof (CalClient), - sizeof (CalClientClass), - (GtkClassInitFunc) cal_client_class_init, - (GtkObjectInitFunc) cal_client_init, - NULL, /* reserved_1 */ - NULL, /* reserved_2 */ - (GtkClassInitFunc) NULL - }; - - cal_client_type = gtk_type_unique (GTK_TYPE_OBJECT, &cal_client_info); - } - - return cal_client_type; -} - -/* Class initialization function for the calendar client */ -static void -cal_client_class_init (CalClientClass *class) -{ - GtkObjectClass *object_class; - - object_class = (GtkObjectClass *) class; - - parent_class = gtk_type_class (GTK_TYPE_OBJECT); - - cal_client_signals[CAL_LOADED] = - gtk_signal_new ("cal_loaded", - GTK_RUN_FIRST, - object_class->type, - GTK_SIGNAL_OFFSET (CalClientClass, cal_loaded), - gtk_marshal_NONE__ENUM, - GTK_TYPE_NONE, 1, - GTK_TYPE_ENUM); - cal_client_signals[OBJ_UPDATED] = - gtk_signal_new ("obj_updated", - GTK_RUN_FIRST, - object_class->type, - GTK_SIGNAL_OFFSET (CalClientClass, obj_updated), - gtk_marshal_NONE__STRING, - GTK_TYPE_NONE, 1, - GTK_TYPE_STRING); - cal_client_signals[OBJ_REMOVED] = - gtk_signal_new ("obj_removed", - GTK_RUN_FIRST, - object_class->type, - GTK_SIGNAL_OFFSET (CalClientClass, obj_removed), - gtk_marshal_NONE__STRING, - GTK_TYPE_NONE, 1, - GTK_TYPE_STRING); - - gtk_object_class_add_signals (object_class, cal_client_signals, LAST_SIGNAL); - - object_class->destroy = cal_client_destroy; -} - -/* Object initialization function for the calendar client */ -static void -cal_client_init (CalClient *client) -{ - CalClientPrivate *priv; - - priv = g_new0 (CalClientPrivate, 1); - client->priv = priv; - - priv->factory = CORBA_OBJECT_NIL; - priv->load_state = LOAD_STATE_NOT_LOADED; -} - -/* Gets rid of the factory that a client knows about */ -static void -destroy_factory (CalClient *client) -{ - CalClientPrivate *priv; - CORBA_Environment ev; - int result; - - priv = client->priv; - - CORBA_exception_init (&ev); - result = CORBA_Object_is_nil (priv->factory, &ev); - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("destroy_factory(): could not see if the factory was nil"); - priv->factory = CORBA_OBJECT_NIL; - CORBA_exception_free (&ev); - return; - } - CORBA_exception_free (&ev); - - if (result) - return; - - CORBA_exception_init (&ev); - CORBA_Object_release (priv->factory, &ev); - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("destroy_factory(): could not release the factory"); - - CORBA_exception_free (&ev); - priv->factory = CORBA_OBJECT_NIL; -} - -/* Gets rid of the listener that a client knows about */ -static void -destroy_listener (CalClient *client) -{ - CalClientPrivate *priv; - - priv = client->priv; - - if (!priv->listener) - return; - - bonobo_object_unref (BONOBO_OBJECT (priv->listener)); - priv->listener = NULL; -} - -/* Gets rid of the calendar client interface object that a client knows about */ -static void -destroy_cal (CalClient *client) -{ - CalClientPrivate *priv; - CORBA_Environment ev; - int result; - - priv = client->priv; - - CORBA_exception_init (&ev); - result = CORBA_Object_is_nil (priv->cal, &ev); - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("destroy_cal(): could not see if the " - "calendar client interface object was nil"); - priv->cal = CORBA_OBJECT_NIL; - CORBA_exception_free (&ev); - return; - } - CORBA_exception_free (&ev); - - if (result) - return; - - CORBA_exception_init (&ev); - Evolution_Calendar_Cal_unref (priv->cal, &ev); - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("destroy_cal(): could not unref the calendar client interface object"); - - CORBA_exception_free (&ev); - - CORBA_exception_init (&ev); - CORBA_Object_release (priv->cal, &ev); - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("destroy_cal(): could not release the calendar client interface object"); - - CORBA_exception_free (&ev); - priv->cal = CORBA_OBJECT_NIL; - -} - -/* Destroy handler for the calendar client */ -static void -cal_client_destroy (GtkObject *object) -{ - CalClient *client; - CalClientPrivate *priv; - - g_return_if_fail (object != NULL); - g_return_if_fail (IS_CAL_CLIENT (object)); - - client = CAL_CLIENT (object); - priv = client->priv; - - destroy_factory (client); - destroy_listener (client); - destroy_cal (client); - - priv->load_state = LOAD_STATE_NOT_LOADED; - - g_free (priv); - client->priv = NULL; - - if (GTK_OBJECT_CLASS (parent_class)->destroy) - (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); -} - - - -/* Signal handlers for the listener's signals */ - -/* Handle the cal_loaded signal from the listener */ -static void -cal_loaded_cb (CalListener *listener, - Evolution_Calendar_Listener_LoadStatus status, - Evolution_Calendar_Cal cal, - gpointer data) -{ - CalClient *client; - CalClientPrivate *priv; - CORBA_Environment ev; - Evolution_Calendar_Cal cal_copy; - CalClientLoadStatus client_status; - - client = CAL_CLIENT (data); - priv = client->priv; - - g_assert (priv->load_state == LOAD_STATE_LOADING); - - client_status = CAL_CLIENT_LOAD_ERROR; - - switch (status) { - case Evolution_Calendar_Listener_SUCCESS: - CORBA_exception_init (&ev); - cal_copy = CORBA_Object_duplicate (cal, &ev); - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_loaded(): could not duplicate the calendar client interface"); - CORBA_exception_free (&ev); - goto error; - } - CORBA_exception_free (&ev); - - priv->cal = cal_copy; - priv->load_state = LOAD_STATE_LOADED; - - client_status = CAL_CLIENT_LOAD_SUCCESS; - goto out; - - case Evolution_Calendar_Listener_ERROR: - client_status = CAL_CLIENT_LOAD_ERROR; - goto error; - - case Evolution_Calendar_Listener_IN_USE: - client_status = CAL_CLIENT_LOAD_IN_USE; - goto error; - - case Evolution_Calendar_Listener_METHOD_NOT_SUPPORTED: - client_status = CAL_CLIENT_LOAD_METHOD_NOT_SUPPORTED; - goto error; - - default: - g_assert_not_reached (); - } - - error: - - bonobo_object_unref (BONOBO_OBJECT (priv->listener)); - priv->listener = NULL; - priv->load_state = LOAD_STATE_NOT_LOADED; - - out: - - g_assert (priv->load_state != LOAD_STATE_LOADING); - - gtk_signal_emit (GTK_OBJECT (client), cal_client_signals[CAL_LOADED], - client_status); -} - -/* Handle the obj_updated signal from the listener */ -static void -obj_updated_cb (CalListener *listener, const Evolution_Calendar_CalObjUID uid, gpointer data) -{ - CalClient *client; - - client = CAL_CLIENT (data); - gtk_signal_emit (GTK_OBJECT (client), cal_client_signals[OBJ_UPDATED], uid); -} - -/* Handle the obj_removed signal from the listener */ -static void -obj_removed_cb (CalListener *listener, const Evolution_Calendar_CalObjUID uid, gpointer data) -{ - CalClient *client; - - client = CAL_CLIENT (data); - gtk_signal_emit (GTK_OBJECT (client), cal_client_signals[OBJ_REMOVED], uid); -} - - - -/** - * cal_client_construct: - * @client: A calendar client. - * - * Constructs a calendar client object by contacting the calendar factory of the - * calendar server. - * - * Return value: The same object as the @client argument, or NULL if the - * calendar factory could not be contacted. - **/ -CalClient * -cal_client_construct (CalClient *client) -{ - CalClientPrivate *priv; - Evolution_Calendar_CalFactory factory, factory_copy; - CORBA_Environment ev; - int result; - - CORBA_exception_init (&ev); - g_return_val_if_fail (client != NULL, NULL); - g_return_val_if_fail (IS_CAL_CLIENT (client), NULL); - - priv = client->priv; - - factory = (Evolution_Calendar_CalFactory) oaf_activate_from_id ( - "OAFIID:evolution:calendar-factory:1c915858-ece3-4a6f-9d81-ea0f108a9554", - OAF_FLAG_NO_LOCAL, NULL, &ev); - - result = CORBA_Object_is_nil (factory, &ev); - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_client_construct(): could not see if the factory is NIL"); - CORBA_exception_free (&ev); - return NULL; - } - CORBA_exception_free (&ev); - - if (result) { - g_message ("cal_client_construct(): could not contact Wombat, " - "the personal calendar server"); - return NULL; - } - - CORBA_exception_init (&ev); - factory_copy = CORBA_Object_duplicate (factory, &ev); - - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_client_construct(): could not duplicate the calendar factory"); - CORBA_exception_free (&ev); - return NULL; - } - CORBA_exception_free (&ev); - - priv->factory = factory_copy; - return client; -} - -/** - * cal_client_new: - * - * Creates a new calendar client. It should be initialized by calling - * cal_client_load_calendar() or cal_client_create_calendar(). - * - * Return value: A newly-created calendar client, or NULL if the client could - * not be constructed because it could not contact the calendar server. - **/ -CalClient * -cal_client_new (void) -{ - CalClient *client; - - client = gtk_type_new (CAL_CLIENT_TYPE); - - if (!cal_client_construct (client)) { - g_message ("cal_client_new(): could not construct the calendar client"); - gtk_object_unref (GTK_OBJECT (client)); - return NULL; - } - - return client; -} - -/* Issues a load or create request */ -static gboolean -load_or_create (CalClient *client, const char *str_uri, gboolean load) -{ - CalClientPrivate *priv; - Evolution_Calendar_Listener corba_listener; - CORBA_Environment ev; - - g_return_val_if_fail (client != NULL, FALSE); - g_return_val_if_fail (IS_CAL_CLIENT (client), FALSE); - - priv = client->priv; - g_return_val_if_fail (priv->load_state == LOAD_STATE_NOT_LOADED, FALSE); - - g_return_val_if_fail (str_uri != NULL, FALSE); - - priv->listener = cal_listener_new (); - if (!priv->listener) { - g_message ("load_or_create(): could not create the listener"); - return FALSE; - } - - gtk_signal_connect (GTK_OBJECT (priv->listener), "cal_loaded", - GTK_SIGNAL_FUNC (cal_loaded_cb), - client); - gtk_signal_connect (GTK_OBJECT (priv->listener), "obj_updated", - GTK_SIGNAL_FUNC (obj_updated_cb), - client); - gtk_signal_connect (GTK_OBJECT (priv->listener), "obj_removed", - GTK_SIGNAL_FUNC (obj_removed_cb), - client); - - corba_listener = (Evolution_Calendar_Listener) bonobo_object_corba_objref ( - BONOBO_OBJECT (priv->listener)); - - CORBA_exception_init (&ev); - - priv->load_state = LOAD_STATE_LOADING; - - if (load) - Evolution_Calendar_CalFactory_load (priv->factory, str_uri, corba_listener, &ev); - else - Evolution_Calendar_CalFactory_create (priv->factory, str_uri, corba_listener, &ev); - - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("load_or_create(): load/create request failed"); - bonobo_object_unref (BONOBO_OBJECT (priv->listener)); - priv->listener = NULL; - priv->load_state = LOAD_STATE_NOT_LOADED; - CORBA_exception_free (&ev); - return FALSE; - } - CORBA_exception_free (&ev); - - return TRUE; -} - -/** - * cal_client_load_calendar: - * @client: A calendar client. - * @str_uri: URI of calendar to load. - * - * Makes a calendar client initiate a request to load a calendar. The calendar - * client will emit the "cal_loaded" signal when the response from the server is - * received. - * - * Return value: TRUE on success, FALSE on failure to issue the load request. - **/ -gboolean -cal_client_load_calendar (CalClient *client, const char *str_uri) -{ - return load_or_create (client, str_uri, TRUE); -} - -/** - * cal_client_create_calendar: - * @client: A calendar client. - * @str_uri: URI that will contain the calendar data. - * - * Makes a calendar client initiate a request to create a new calendar. The - * calendar client will emit the "cal_loaded" signal when the response from the - * server is received. - * - * Return value: TRUE on success, FALSE on failure to issue the create request. - **/ -gboolean -cal_client_create_calendar (CalClient *client, const char *str_uri) -{ - return load_or_create (client, str_uri, FALSE); -} - -/** - * cal_client_is_loaded: - * @client: A calendar client. - * - * Queries whether a calendar client has been loaded successfully. - * - * Return value: TRUE if the client has been loaded, FALSE if it has not or if - * the loading process is not finished yet. - **/ -gboolean -cal_client_is_loaded (CalClient *client) -{ - CalClientPrivate *priv; - - g_return_val_if_fail (client != NULL, FALSE); - g_return_val_if_fail (IS_CAL_CLIENT (client), FALSE); - - priv = client->priv; - return (priv->load_state == LOAD_STATE_LOADED); -} - -/* Converts our representation of a calendar component type into its CORBA representation */ -static Evolution_Calendar_CalObjType -corba_obj_type (CalObjType type) -{ - return (((type & CALOBJ_TYPE_EVENT) ? Evolution_Calendar_TYPE_EVENT : 0) - | ((type & CALOBJ_TYPE_TODO) ? Evolution_Calendar_TYPE_TODO : 0) - | ((type & CALOBJ_TYPE_JOURNAL) ? Evolution_Calendar_TYPE_JOURNAL : 0)); -} - -/** - * cal_client_get_n_objects: - * @client: A calendar client. - * @type: Type of objects that will be counted. - * - * Counts the number of calendar components of the specified @type. This can be - * used to count how many events, to-dos, or journals there are, for example. - * - * Return value: Number of components. - **/ -int -cal_client_get_n_objects (CalClient *client, CalObjType type) -{ - CalClientPrivate *priv; - CORBA_Environment ev; - int n; - int t; - - g_return_val_if_fail (client != NULL, -1); - g_return_val_if_fail (IS_CAL_CLIENT (client), -1); - - priv = client->priv; - g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, -1); - - t = corba_obj_type (type); - - CORBA_exception_init (&ev); - n = Evolution_Calendar_Cal_get_n_objects (priv->cal, t, &ev); - - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_client_get_n_objects(): could not get the number of objects"); - CORBA_exception_free (&ev); - return -1; - } - - CORBA_exception_free (&ev); - return n; -} - -/** - * cal_client_get_object: - * @client: A calendar client. - * @uid: Unique identifier for a calendar component. - * @comp: Return value for the calendar component object. - * - * Queries a calendar for a calendar component object based on its unique - * identifier. - * - * Return value: Result code based on the status of the operation. - **/ -CalClientGetStatus -cal_client_get_object (CalClient *client, const char *uid, CalComponent **comp) -{ - CalClientPrivate *priv; - CORBA_Environment ev; - Evolution_Calendar_CalObj calobj_str; - CalClientGetStatus retval; - icalcomponent *icalcomp; - - g_return_val_if_fail (client != NULL, CAL_CLIENT_GET_NOT_FOUND); - g_return_val_if_fail (IS_CAL_CLIENT (client), CAL_CLIENT_GET_NOT_FOUND); - - priv = client->priv; - g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, CAL_CLIENT_GET_NOT_FOUND); - - g_return_val_if_fail (uid != NULL, CAL_CLIENT_GET_NOT_FOUND); - g_return_val_if_fail (comp != NULL, CAL_CLIENT_GET_NOT_FOUND); - - retval = CAL_CLIENT_GET_NOT_FOUND; - *comp = NULL; - - CORBA_exception_init (&ev); - calobj_str = Evolution_Calendar_Cal_get_object (priv->cal, (char *) uid, &ev); - - if (ev._major == CORBA_USER_EXCEPTION - && strcmp (CORBA_exception_id (&ev), ex_Evolution_Calendar_Cal_NotFound) == 0) - goto out; - else if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_client_get_object(): could not get the object"); - goto out; - } - - icalcomp = icalparser_parse_string (calobj_str); - CORBA_free (calobj_str); - - if (!icalcomp) { - retval = CAL_CLIENT_GET_SYNTAX_ERROR; - goto out; - } - - *comp = cal_component_new (); - if (!cal_component_set_icalcomponent (*comp, icalcomp)) { - icalcomponent_free (icalcomp); - gtk_object_unref (GTK_OBJECT (*comp)); - *comp = NULL; - - retval = CAL_CLIENT_GET_SYNTAX_ERROR; - goto out; - } - - retval = CAL_CLIENT_GET_SUCCESS; - - out: - - CORBA_exception_free (&ev); - return retval; -} - -/* Builds an UID list out of a CORBA UID sequence */ -static GList * -build_uid_list (Evolution_Calendar_CalObjUIDSeq *seq) -{ - GList *uids; - int i; - - uids = NULL; - - for (i = 0; i < seq->_length; i++) - uids = g_list_prepend (uids, g_strdup (seq->_buffer[i])); - - return uids; -} - -/** - * cal_client_get_uids: - * @client: A calendar client. - * @type: Bitmask with types of objects to return. - * - * Queries a calendar for a list of unique identifiers corresponding to calendar - * objects whose type matches one of the types specified in the @type flags. - * - * Return value: A list of strings that are the sought UIDs. - **/ -GList * -cal_client_get_uids (CalClient *client, CalObjType type) -{ - CalClientPrivate *priv; - CORBA_Environment ev; - Evolution_Calendar_CalObjUIDSeq *seq; - int t; - GList *uids; - - 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); - - t = corba_obj_type (type); - - CORBA_exception_init (&ev); - - seq = Evolution_Calendar_Cal_get_uids (priv->cal, t, &ev); - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_client_get_uids(): could not get the list of UIDs"); - CORBA_exception_free (&ev); - return NULL; - } - - CORBA_exception_free (&ev); - - uids = build_uid_list (seq); - CORBA_free (seq); - - return uids; -} - -/* Builds a GList of CalObjChange structures from the CORBA sequence */ -static GList * -build_change_list (Evolution_Calendar_CalObjChangeSeq *seq) -{ - GList *list; - int i; - - /* Create the list in reverse order */ - list = NULL; - for (i = 0; i < seq->_length; i++) { - Evolution_Calendar_CalObjChange *corba_coc; - CalObjChange *coc; - - corba_coc = &seq->_buffer[i]; - coc = g_new (CalObjChange, 1); - - coc->uid = g_strdup (corba_coc->uid); - coc->type = corba_coc->type; - - list = g_list_prepend (list, coc); - } - - list = g_list_reverse (list); - return list; -} - -/** - * cal_client_get_changed_uids: - * @client: A calendar client. - * @type: Bitmask with types of objects to return. - * - * Queries a calendar for a list of unique identifiers corresponding to calendar - * objects whose type matches one of the types specified in the @type flags. - * - * Return value: A list of strings that are the sought UIDs. - **/ -GList * -cal_client_get_changed_uids (CalClient *client, CalObjType type, time_t since) -{ - CalClientPrivate *priv; - CORBA_Environment ev; - Evolution_Calendar_CalObjChangeSeq *seq; - int t; - GList *changes; - - 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); - - t = corba_obj_type (type); - CORBA_exception_init (&ev); - - seq = Evolution_Calendar_Cal_get_changed_uids (priv->cal, t, since, &ev); - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_client_get_changed_uids(): could not get the list of changes"); - CORBA_exception_free (&ev); - return NULL; - } - - CORBA_exception_free (&ev); - - changes = build_change_list (seq); - CORBA_free (seq); - - return changes; -} - -/* FIXME: Not used? */ -#if 0 -/* Builds a GList of CalObjInstance structures from the CORBA sequence */ -static GList * -build_object_instance_list (Evolution_Calendar_CalObjInstanceSeq *seq) -{ - GList *list; - int i; - - /* Create the list in reverse order */ - - list = 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->start = corba_icoi->start; - icoi->end = corba_icoi->end; - - list = g_list_prepend (list, icoi); - } - - list = g_list_reverse (list); - return list; -} -#endif - -/** - * cal_client_get_objects_in_range: - * @client: A calendar client. - * @type: Bitmask with types of objects to return. - * @start: Start time for query. - * @end: End time for query. - * - * Queries a calendar for the objects that occur or recur in the specified range - * of time. - * - * Return value: A list of UID strings. This should be freed using the - * cal_obj_uid_list_free() function. - **/ -GList * -cal_client_get_objects_in_range (CalClient *client, CalObjType type, time_t start, time_t end) -{ - CalClientPrivate *priv; - CORBA_Environment ev; - Evolution_Calendar_CalObjUIDSeq *seq; - GList *uids; - int t; - - 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); - - CORBA_exception_init (&ev); - - t = corba_obj_type (type); - - seq = Evolution_Calendar_Cal_get_objects_in_range (priv->cal, t, start, end, &ev); - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_client_get_objects_in_range(): could not get the objects"); - CORBA_exception_free (&ev); - return NULL; - } - CORBA_exception_free (&ev); - - uids = build_uid_list (seq); - CORBA_free (seq); - - return uids; -} - -/* Callback used when an object is updated and we must update the copy we have */ -static void -generate_instances_obj_updated_cb (CalClient *client, const char *uid, gpointer data) -{ - GHashTable *uid_comp_hash; - CalComponent *comp; - CalClientGetStatus status; - const char *comp_uid; - - uid_comp_hash = data; - - comp = g_hash_table_lookup (uid_comp_hash, uid); - if (!comp) - /* OK, so we don't care about new objects that may indeed be in - * the requested time range. We only care about the ones that - * were returned by the first query to - * cal_client_get_objects_in_range(). - */ - return; - - g_hash_table_remove (uid_comp_hash, uid); - gtk_object_unref (GTK_OBJECT (comp)); - - status = cal_client_get_object (client, uid, &comp); - - switch (status) { - case CAL_CLIENT_GET_SUCCESS: - /* The hash key comes from the component's internal data */ - cal_component_get_uid (comp, &comp_uid); - g_hash_table_insert (uid_comp_hash, (char *) comp_uid, comp); - break; - - case CAL_CLIENT_GET_NOT_FOUND: - /* No longer in the server, too bad */ - break; - - case CAL_CLIENT_GET_SYNTAX_ERROR: - g_message ("obj_updated_cb(): Syntax error when getting " - "object `%s'; ignoring...", uid); - break; - - } -} - -/* Callback used when an object is removed and we must delete the copy we have */ -static void -generate_instances_obj_removed_cb (CalClient *client, const char *uid, gpointer data) -{ - GHashTable *uid_comp_hash; - CalComponent *comp; - - uid_comp_hash = data; - - comp = g_hash_table_lookup (uid_comp_hash, uid); - if (!comp) - return; - - g_hash_table_remove (uid_comp_hash, uid); - gtk_object_unref (GTK_OBJECT (comp)); -} - -/* Adds a component to the list; called from g_hash_table_foreach() */ -static void -add_component (gpointer key, gpointer value, gpointer data) -{ - CalComponent *comp; - GList **list; - - comp = CAL_COMPONENT (value); - list = data; - - *list = g_list_prepend (*list, comp); -} - -/* Gets a list of components that recur within the specified range of time. It - * ensures that the resulting list of CalComponent objects contains only objects - * that are actually in the server at the time the initial - * cal_client_get_objects_in_range() query ends. - */ -static GList * -get_objects_atomically (CalClient *client, CalObjType type, time_t start, time_t end) -{ - GList *uids; - GHashTable *uid_comp_hash; - GList *objects; - guint obj_updated_id; - guint obj_removed_id; - GList *l; - - uids = cal_client_get_objects_in_range (client, type, start, end); - - uid_comp_hash = g_hash_table_new (g_str_hash, g_str_equal); - - /* While we are getting the actual object data, keep track of changes */ - - obj_updated_id = gtk_signal_connect (GTK_OBJECT (client), "obj_updated", - GTK_SIGNAL_FUNC (generate_instances_obj_updated_cb), - uid_comp_hash); - - obj_removed_id = gtk_signal_connect (GTK_OBJECT (client), "obj_removed", - GTK_SIGNAL_FUNC (generate_instances_obj_removed_cb), - uid_comp_hash); - - /* Get the objects */ - - for (l = uids; l; l = l->next) { - CalComponent *comp; - CalClientGetStatus status; - char *uid; - const char *comp_uid; - - uid = l->data; - - status = cal_client_get_object (client, uid, &comp); - - switch (status) { - case CAL_CLIENT_GET_SUCCESS: - /* The hash key comes from the component's internal data - * instead of the duped UID from the list of UIDS. - */ - cal_component_get_uid (comp, &comp_uid); - g_hash_table_insert (uid_comp_hash, (char *) comp_uid, comp); - break; - - case CAL_CLIENT_GET_NOT_FOUND: - /* Object disappeared from the server, so don't log it */ - break; - - case CAL_CLIENT_GET_SYNTAX_ERROR: - g_message ("get_objects_atomically(): Syntax error when getting " - "object `%s'; ignoring...", uid); - break; - - default: - g_assert_not_reached (); - } - } - - cal_obj_uid_list_free (uids); - - /* Now our state is consistent with the server, so disconnect from the - * notification signals and generate the final list of components. - */ - - gtk_signal_disconnect (GTK_OBJECT (client), obj_updated_id); - gtk_signal_disconnect (GTK_OBJECT (client), obj_removed_id); - - objects = NULL; - g_hash_table_foreach (uid_comp_hash, add_component, &objects); - g_hash_table_destroy (uid_comp_hash); - - return objects; -} - -struct comp_instance { - CalComponent *comp; - time_t start; - time_t end; -}; - -/* Called from cal_recur_generate_instances(); adds an instance to the list */ -static gboolean -add_instance (CalComponent *comp, time_t start, time_t end, gpointer data) -{ - GList **list; - struct comp_instance *ci; - - list = data; - - ci = g_new (struct comp_instance, 1); - - ci->comp = comp; - gtk_object_ref (GTK_OBJECT (ci->comp)); - - ci->start = start; - ci->end = end; - - *list = g_list_prepend (*list, ci); - - return TRUE; -} - -/* Used from g_list_sort(); compares two struct comp_instance structures */ -static gint -compare_comp_instance (gconstpointer a, gconstpointer b) -{ - const struct comp_instance *cia, *cib; - time_t diff; - - cia = a; - cib = b; - - diff = cia->start - cib->start; - return (diff < 0) ? -1 : (diff > 0) ? 1 : 0; -} - -/** - * cal_client_generate_instances: - * @client: A calendar client. - * @type: Bitmask with types of objects to return. - * @start: Start time for query. - * @end: End time for query. - * @cb: Callback for each generated instance. - * @cb_data: Closure data for the callback. - * - * Does a combination of cal_client_get_objects_in_range() and - * cal_recur_generate_instances(). It fetches the list of objects in an atomic - * way so that the generated instances are actually in the server at the time - * the initial cal_client_get_objects_in_range() query ends. - * - * The callback function should do a gtk_object_ref() of the calendar component - * it gets passed if it intends to keep it around. - **/ -void -cal_client_generate_instances (CalClient *client, CalObjType type, - time_t start, time_t end, - CalRecurInstanceFn cb, gpointer cb_data) -{ - CalClientPrivate *priv; - GList *objects; - GList *instances; - GList *l; - - g_return_if_fail (client != NULL); - g_return_if_fail (IS_CAL_CLIENT (client)); - - priv = client->priv; - g_return_if_fail (priv->load_state == LOAD_STATE_LOADED); - - g_return_if_fail (start != -1 && end != -1); - g_return_if_fail (start <= end); - g_return_if_fail (cb != NULL); - - /* Generate objects */ - - objects = get_objects_atomically (client, type, start, end); - instances = NULL; - - for (l = objects; l; l = l->next) { - CalComponent *comp; - - comp = l->data; - cal_recur_generate_instances (comp, start, end, add_instance, &instances); - } - - g_list_free (objects); - - /* Generate instances and spew them out */ - - instances = g_list_sort (instances, compare_comp_instance); - - for (l = instances; l; l = l->next) { - struct comp_instance *ci; - gboolean result; - - ci = l->data; - - result = (* cb) (ci->comp, ci->start, ci->end, cb_data); - - if (!result) - break; - } - - /* Clean up */ - - for (l = instances; l; l = l->next) { - struct comp_instance *ci; - - ci = l->data; - gtk_object_unref (GTK_OBJECT (ci->comp)); - g_free (ci); - } - - g_list_free (instances); -} - - -#if 0 -/* Translates the CORBA representation of an AlarmType */ -static enum AlarmType -uncorba_alarm_type (Evolution_Calendar_AlarmType corba_type) -{ - switch (corba_type) { - case Evolution_Calendar_MAIL: - return ALARM_MAIL; - - case Evolution_Calendar_PROGRAM: - return ALARM_PROGRAM; - - case Evolution_Calendar_DISPLAY: - return ALARM_DISPLAY; - - case Evolution_Calendar_AUDIO: - return ALARM_AUDIO; - - default: - g_assert_not_reached (); - return ALARM_DISPLAY; - } -} -#endif - -/* Builds a GList of CalAlarmInstance structures from the CORBA sequence */ -static GList * -build_alarm_instance_list (Evolution_Calendar_CalAlarmInstanceSeq *seq) -{ - GList *list; - int i; - - /* Create the list in reverse order */ - - list = NULL; - for (i = 0; i < seq->_length; i++) { - Evolution_Calendar_CalAlarmInstance *corba_ai; - CalAlarmInstance *ai; - - corba_ai = &seq->_buffer[i]; - ai = g_new (CalAlarmInstance, 1); - - ai->uid = g_strdup (corba_ai->uid); -#if 0 - ai->type = uncorba_alarm_type (corba_ai->type); -#endif - ai->trigger = corba_ai->trigger; - ai->occur = corba_ai->occur; - - list = g_list_prepend (list, ai); - } - - list = g_list_reverse (list); - return list; -} - -/** - * cal_client_get_alarms_in_range: - * @client: A calendar client. - * @start: Start time for query. - * @end: End time for query. - * - * Queries a calendar for the alarms that trigger in the specified range of - * time. - * - * Return value: A list of #CalAlarmInstance structures. - **/ -GList * -cal_client_get_alarms_in_range (CalClient *client, time_t start, time_t end) -{ - CalClientPrivate *priv; - CORBA_Environment ev; - Evolution_Calendar_CalAlarmInstanceSeq *seq; - GList *alarms; - - 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); - - CORBA_exception_init (&ev); - - seq = Evolution_Calendar_Cal_get_alarms_in_range (priv->cal, start, end, &ev); - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_client_get_alarms_in_range(): could not get the alarm range"); - CORBA_exception_free (&ev); - return NULL; - } - CORBA_exception_free (&ev); - - alarms = build_alarm_instance_list (seq); - CORBA_free (seq); - - return alarms; -} - -/** - * cal_client_get_alarms_for_object: - * @client: A calendar client. - * @uid: Unique identifier for a calendar object. - * @start: Start time for query. - * @end: End time for query. - * @alarms: Return value for the list of alarm instances. - * - * Queries a calendar for the alarms of a particular object that trigger in the - * specified range of time. - * - * Return value: TRUE on success, FALSE if the object was not found. - **/ -gboolean -cal_client_get_alarms_for_object (CalClient *client, const char *uid, - time_t start, time_t end, - GList **alarms) -{ - CalClientPrivate *priv; - CORBA_Environment ev; - Evolution_Calendar_CalAlarmInstanceSeq *seq; - gboolean retval; - - g_return_val_if_fail (client != NULL, FALSE); - g_return_val_if_fail (IS_CAL_CLIENT (client), FALSE); - - priv = client->priv; - g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, FALSE); - - g_return_val_if_fail (uid != NULL, FALSE); - g_return_val_if_fail (start != -1 && end != -1, FALSE); - g_return_val_if_fail (start <= end, FALSE); - g_return_val_if_fail (alarms != NULL, FALSE); - - *alarms = NULL; - retval = FALSE; - - CORBA_exception_init (&ev); - - seq = Evolution_Calendar_Cal_get_alarms_for_object (priv->cal, (char *) uid, start, end, &ev); - if (ev._major == CORBA_USER_EXCEPTION - && strcmp (CORBA_exception_id (&ev), ex_Evolution_Calendar_Cal_NotFound) == 0) - goto out; - else if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_client_get_alarms_for_object(): could not get the alarm range"); - goto out; - } - - retval = TRUE; - *alarms = build_alarm_instance_list (seq); - CORBA_free (seq); - - out: - CORBA_exception_free (&ev); - return retval; - -} - -/** - * cal_client_update_object: - * @client: A calendar client. - * @comp: A calendar component object. - * - * Asks a calendar to update a component. Any existing component with the - * specified component's UID will be replaced. The client program should not - * assume that the object is actually in the server's storage until it has - * received the "obj_updated" notification signal. - * - * Return value: TRUE on success, FALSE on specifying an invalid component. - **/ -gboolean -cal_client_update_object (CalClient *client, CalComponent *comp) -{ - CalClientPrivate *priv; - CORBA_Environment ev; - gboolean retval; - char *obj_string; - const char *uid; - - g_return_val_if_fail (client != NULL, FALSE); - g_return_val_if_fail (IS_CAL_CLIENT (client), FALSE); - - priv = client->priv; - g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, FALSE); - - g_return_val_if_fail (comp != NULL, FALSE); - - retval = FALSE; - - cal_component_commit_sequence (comp); - obj_string = cal_component_get_as_string (comp); - - cal_component_get_uid (comp, &uid); - - CORBA_exception_init (&ev); - Evolution_Calendar_Cal_update_object (priv->cal, (char *) uid, obj_string, &ev); - g_free (obj_string); - - if (ev._major == CORBA_USER_EXCEPTION && - strcmp (CORBA_exception_id (&ev), ex_Evolution_Calendar_Cal_InvalidObject) == 0) - goto out; - else if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_client_update_object(): could not update the object"); - goto out; - } - - retval = TRUE; - - out: - CORBA_exception_free (&ev); - return retval; -} - -gboolean -cal_client_remove_object (CalClient *client, const char *uid) -{ - CalClientPrivate *priv; - CORBA_Environment ev; - gboolean retval; - - g_return_val_if_fail (client != NULL, FALSE); - g_return_val_if_fail (IS_CAL_CLIENT (client), FALSE); - - priv = client->priv; - g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, FALSE); - - g_return_val_if_fail (uid != NULL, FALSE); - - retval = FALSE; - - CORBA_exception_init (&ev); - Evolution_Calendar_Cal_remove_object (priv->cal, (char *) uid, &ev); - - if (ev._major == CORBA_USER_EXCEPTION && - strcmp (CORBA_exception_id (&ev), ex_Evolution_Calendar_Cal_NotFound) == 0) - goto out; - else if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_client_remove_object(): could not remove the object"); - goto out; - } - - retval = TRUE; - - out: - CORBA_exception_free (&ev); - return retval; -} |