diff options
Diffstat (limited to 'calendar/pcs/cal-backend.c')
| -rw-r--r-- | calendar/pcs/cal-backend.c | 542 |
1 files changed, 0 insertions, 542 deletions
diff --git a/calendar/pcs/cal-backend.c b/calendar/pcs/cal-backend.c deleted file mode 100644 index 350e6468e4..0000000000 --- a/calendar/pcs/cal-backend.c +++ /dev/null @@ -1,542 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* Evolution calendar - generic backend class - * - * Copyright (C) 2000 Helix Code, Inc. - * Copyright (C) 2000 Ximian, Inc. - * - * Authors: Federico Mena-Quintero <federico@ximian.com> - * JP Rosevear <jpr@ximian.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/gtkobject.h> -#include <gtk/gtksignal.h> -#include <gnome-xml/parser.h> -#include <gnome-xml/parserInternals.h> -#include <gnome-xml/xmlmemory.h> - -#include "cal-backend.h" -#include "libversit/vcc.h" - - - -/* Signal IDs */ -enum { - LAST_CLIENT_GONE, - OPENED, - OBJ_UPDATED, - OBJ_REMOVED, - LAST_SIGNAL -}; - -static void cal_backend_class_init (CalBackendClass *class); - -static guint cal_backend_signals[LAST_SIGNAL]; - -#define CLASS(backend) (CAL_BACKEND_CLASS (GTK_OBJECT (backend)->klass)) - - - -/** - * cal_backend_get_type: - * @void: - * - * Registers the #CalBackend class if necessary, and returns the type ID - * associated to it. - * - * Return value: The type ID of the #CalBackend class. - **/ -GtkType -cal_backend_get_type (void) -{ - static GtkType cal_backend_type = 0; - - if (!cal_backend_type) { - static const GtkTypeInfo cal_backend_info = { - "CalBackend", - sizeof (CalBackend), - sizeof (CalBackendClass), - (GtkClassInitFunc) cal_backend_class_init, - (GtkObjectInitFunc) NULL, - NULL, /* reserved_1 */ - NULL, /* reserved_2 */ - (GtkClassInitFunc) NULL - }; - - cal_backend_type = - gtk_type_unique (GTK_TYPE_OBJECT, &cal_backend_info); - } - - return cal_backend_type; -} - -/* Class initialization function for the calendar backend */ -static void -cal_backend_class_init (CalBackendClass *class) -{ - GtkObjectClass *object_class; - - object_class = (GtkObjectClass *) class; - - cal_backend_signals[LAST_CLIENT_GONE] = - gtk_signal_new ("last_client_gone", - GTK_RUN_FIRST, - object_class->type, - GTK_SIGNAL_OFFSET (CalBackendClass, last_client_gone), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - cal_backend_signals[OPENED] = - gtk_signal_new ("opened", - GTK_RUN_FIRST, - object_class->type, - GTK_SIGNAL_OFFSET (CalBackendClass, opened), - gtk_marshal_NONE__ENUM, - GTK_TYPE_NONE, 1, - GTK_TYPE_ENUM); - cal_backend_signals[OBJ_UPDATED] = - gtk_signal_new ("obj_updated", - GTK_RUN_FIRST, - object_class->type, - GTK_SIGNAL_OFFSET (CalBackendClass, obj_updated), - gtk_marshal_NONE__STRING, - GTK_TYPE_NONE, 1, - GTK_TYPE_STRING); - cal_backend_signals[OBJ_REMOVED] = - gtk_signal_new ("obj_removed", - GTK_RUN_FIRST, - object_class->type, - GTK_SIGNAL_OFFSET (CalBackendClass, obj_removed), - gtk_marshal_NONE__STRING, - GTK_TYPE_NONE, 1, - GTK_TYPE_STRING); - - gtk_object_class_add_signals (object_class, cal_backend_signals, LAST_SIGNAL); - - class->last_client_gone = NULL; - class->opened = NULL; - class->obj_updated = NULL; - class->obj_removed = NULL; - - class->get_uri = NULL; - class->add_cal = NULL; - class->open = NULL; - class->get_n_objects = NULL; - class->get_object = NULL; - class->get_type_by_uid = NULL; - class->get_uids = NULL; - class->get_objects_in_range = NULL; - class->get_changes = NULL; - class->get_alarms_in_range = NULL; - class->get_alarms_for_object = NULL; - class->update_object = NULL; - class->remove_object = NULL; -} - - - -/** - * cal_backend_get_uri: - * @backend: A calendar backend. - * - * Queries the URI of a calendar backend, which must already have an open - * calendar. - * - * Return value: The URI where the calendar is stored. - **/ -GnomeVFSURI * -cal_backend_get_uri (CalBackend *backend) -{ - g_return_val_if_fail (backend != NULL, NULL); - g_return_val_if_fail (IS_CAL_BACKEND (backend), NULL); - - g_assert (CLASS (backend)->get_uri != NULL); - return (* CLASS (backend)->get_uri) (backend); -} - -/** - * cal_backend_add_cal: - * @backend: A calendar backend. - * @cal: A calendar client interface object. - * - * Adds a calendar client interface object to a calendar @backend. - * The calendar backend must already have an open calendar. - **/ -void -cal_backend_add_cal (CalBackend *backend, Cal *cal) -{ - g_return_if_fail (backend != NULL); - g_return_if_fail (IS_CAL_BACKEND (backend)); - - g_assert (CLASS (backend)->add_cal != NULL); - (* CLASS (backend)->add_cal) (backend, cal); -} - -/** - * cal_backend_open: - * @backend: A calendar backend. - * @uri: URI that contains the calendar data. - * @only_if_exists: Whether the calendar should be opened only if it already - * exists. If FALSE, a new calendar will be created when the specified @uri - * does not exist. - * - * Opens a calendar backend with data from a calendar stored at the specified - * URI. - * - * Return value: An operation status code. - **/ -CalBackendOpenStatus -cal_backend_open (CalBackend *backend, GnomeVFSURI *uri, gboolean only_if_exists) -{ - CalBackendOpenStatus result; - - g_return_val_if_fail (backend != NULL, CAL_BACKEND_OPEN_ERROR); - g_return_val_if_fail (IS_CAL_BACKEND (backend), CAL_BACKEND_OPEN_ERROR); - g_return_val_if_fail (uri != NULL, CAL_BACKEND_OPEN_ERROR); - - g_assert (CLASS (backend)->open != NULL); - result = (* CLASS (backend)->open) (backend, uri, only_if_exists); - - return result; -} - -/** - * cal_backend_is_loaded: - * @backend: A calendar backend. - * - * Queries whether a calendar backend has been loaded yet. - * - * Return value: TRUE if the backend has been loaded with data, FALSE otherwise. - **/ -gboolean -cal_backend_is_loaded (CalBackend *backend) -{ - gboolean result; - - g_return_val_if_fail (backend != NULL, FALSE); - g_return_val_if_fail (IS_CAL_BACKEND (backend), FALSE); - - g_assert (CLASS (backend)->is_loaded != NULL); - result = (* CLASS (backend)->is_loaded) (backend); - - return result; -} - -/** - * cal_backend_get_n_objects: - * @backend: A calendar backend. - * @type: Types of objects that will be included in the count. - * - * Queries the number of calendar objects of a particular type. - * - * Return value: Number of objects of the specified @type. - **/ -int -cal_backend_get_n_objects (CalBackend *backend, CalObjType type) -{ - g_return_val_if_fail (backend != NULL, -1); - g_return_val_if_fail (IS_CAL_BACKEND (backend), -1); - - g_assert (CLASS (backend)->get_n_objects != NULL); - return (* CLASS (backend)->get_n_objects) (backend, type); -} - -/** - * cal_backend_get_object: - * @backend: A calendar backend. - * @uid: Unique identifier for a calendar object. - * - * Queries a calendar backend for a calendar object based on its unique - * identifier. - * - * Return value: The string representation of a complete calendar wrapping the - * the sought object, or NULL if no object had the specified UID. A complete - * calendar is returned because you also need the timezone data. - **/ -char * -cal_backend_get_object (CalBackend *backend, const char *uid) -{ - g_return_val_if_fail (backend != NULL, NULL); - g_return_val_if_fail (IS_CAL_BACKEND (backend), NULL); - g_return_val_if_fail (uid != NULL, NULL); - - g_assert (CLASS (backend)->get_object != NULL); - return (* CLASS (backend)->get_object) (backend, uid); -} - -/** - * cal_backend_get_uids: - * @backend: A calendar backend. - * @type: Bitmask with types of objects to return. - * - * Builds 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. The list should be - * freed using the cal_obj_uid_list_free() function. - **/ -GList * -cal_backend_get_uids (CalBackend *backend, CalObjType type) -{ - g_return_val_if_fail (backend != NULL, NULL); - g_return_val_if_fail (IS_CAL_BACKEND (backend), NULL); - - g_assert (CLASS (backend)->get_uids != NULL); - return (* CLASS (backend)->get_uids) (backend, type); -} - - -/** - * cal_backend_get_objects_in_range: - * @backend: A calendar backend. - * @type: Bitmask with types of objects to return. - * @start: Start time for query. - * @end: End time for query. - * - * Builds a list of unique identifiers corresponding to calendar objects of the - * specified type that occur or recur within the specified time range. - * - * Return value: A list of UID strings. The list should be freed using the - * cal_obj_uid_list_free() function. - **/ -GList * -cal_backend_get_objects_in_range (CalBackend *backend, CalObjType type, - time_t start, time_t end) -{ - g_return_val_if_fail (backend != NULL, NULL); - g_return_val_if_fail (IS_CAL_BACKEND (backend), NULL); - g_return_val_if_fail (start != -1 && end != -1, NULL); - g_return_val_if_fail (start <= end, NULL); - - g_assert (CLASS (backend)->get_objects_in_range != NULL); - return (* CLASS (backend)->get_objects_in_range) (backend, type, start, end); -} - -/** - * cal_backend_get_changes: - * @backend: A calendar backend - * @type: Bitmask with types of objects to return. - * @change_id: A unique uid for the callers change list - * - * Builds a sequence of objects and the type of change that occurred on them since - * the last time the give change_id was seen - * - * Return value: A list of the objects that changed and the type of change - **/ -GNOME_Evolution_Calendar_CalObjChangeSeq * -cal_backend_get_changes (CalBackend *backend, CalObjType type, const char *change_id) -{ - g_return_val_if_fail (backend != NULL, NULL); - g_return_val_if_fail (IS_CAL_BACKEND (backend), NULL); - g_return_val_if_fail (change_id != NULL, NULL); - - g_assert (CLASS (backend)->get_changes != NULL); - return (* CLASS (backend)->get_changes) (backend, type, change_id); -} - -/** - * cal_backend_get_alarms_in_range: - * @backend: A calendar backend. - * @start: Start time for query. - * @end: End time for query. - * @valid_range: Return value that says whether the range is valid or not. - * - * Builds a sorted list of the alarms that trigger in the specified time range. - * - * Return value: A sequence of component alarm instances structures, or NULL - * if @valid_range returns FALSE. - **/ -GNOME_Evolution_Calendar_CalComponentAlarmsSeq * -cal_backend_get_alarms_in_range (CalBackend *backend, time_t start, time_t end, gboolean *valid_range) -{ - g_return_val_if_fail (backend != NULL, NULL); - g_return_val_if_fail (IS_CAL_BACKEND (backend), NULL); - g_return_val_if_fail (valid_range != NULL, NULL); - - g_assert (CLASS (backend)->get_alarms_in_range != NULL); - - if (!(start != -1 && end != -1 && start <= end)) { - *valid_range = FALSE; - return NULL; - } else { - *valid_range = TRUE; - return (* CLASS (backend)->get_alarms_in_range) (backend, start, end); - } -} - -/** - * cal_backend_get_alarms_for_object: - * @backend: A calendar backend. - * @uid: Unique identifier for a calendar object. - * @start: Start time for query. - * @end: End time for query. - * @result: Return value for the result code for the operation. - * - * Builds a sorted list of the alarms of the specified event that trigger in a - * particular time range. - * - * Return value: A structure of the component's alarm instances, or NULL if @result - * returns something other than #CAL_BACKEND_GET_ALARMS_SUCCESS. - **/ -GNOME_Evolution_Calendar_CalComponentAlarms * -cal_backend_get_alarms_for_object (CalBackend *backend, const char *uid, - time_t start, time_t end, - CalBackendGetAlarmsForObjectResult *result) -{ - g_return_val_if_fail (backend != NULL, NULL); - g_return_val_if_fail (IS_CAL_BACKEND (backend), NULL); - g_return_val_if_fail (uid != NULL, NULL); - g_return_val_if_fail (result != NULL, NULL); - - g_assert (CLASS (backend)->get_alarms_for_object != NULL); - - if (!(start != -1 && end != -1 && start <= end)) { - *result = CAL_BACKEND_GET_ALARMS_INVALID_RANGE; - return NULL; - } else { - gboolean object_found; - GNOME_Evolution_Calendar_CalComponentAlarms *alarms; - - alarms = (* CLASS (backend)->get_alarms_for_object) (backend, uid, start, end, - &object_found); - - if (object_found) - *result = CAL_BACKEND_GET_ALARMS_SUCCESS; - else - *result = CAL_BACKEND_GET_ALARMS_NOT_FOUND; - - return alarms; - } -} - -/** - * cal_backend_update_object: - * @backend: A calendar backend. - * @uid: Unique identifier of the object to update. - * @calobj: String representation of the new calendar object. - * - * Updates an object in a calendar backend. It will replace any existing - * object that has the same UID as the specified one. The backend will in - * turn notify all of its clients about the change. - * - * Return value: TRUE on success, FALSE on being passed an invalid object or one - * with an unsupported type. - **/ -gboolean -cal_backend_update_object (CalBackend *backend, const char *uid, const char *calobj) -{ - g_return_val_if_fail (backend != NULL, FALSE); - g_return_val_if_fail (IS_CAL_BACKEND (backend), FALSE); - g_return_val_if_fail (uid != NULL, FALSE); - g_return_val_if_fail (calobj != NULL, FALSE); - - g_assert (CLASS (backend)->update_object != NULL); - return (* CLASS (backend)->update_object) (backend, uid, calobj); -} - -/** - * cal_backend_remove_object: - * @backend: A calendar backend. - * @uid: Unique identifier of the object to remove. - * - * Removes an object in a calendar backend. The backend will notify all of its - * clients about the change. - * - * Return value: TRUE on success, FALSE on being passed an UID for an object - * that does not exist in the backend. - **/ -gboolean -cal_backend_remove_object (CalBackend *backend, const char *uid) -{ - g_return_val_if_fail (backend != NULL, FALSE); - g_return_val_if_fail (IS_CAL_BACKEND (backend), FALSE); - g_return_val_if_fail (uid != NULL, FALSE); - - g_assert (CLASS (backend)->remove_object != NULL); - return (* CLASS (backend)->remove_object) (backend, uid); -} - -/** - * cal_backend_last_client_gone: - * @backend: A calendar backend. - * - * Emits the "last_client_gone" signal of a calendar backend. This function is - * to be used only by backend implementations. - **/ -void -cal_backend_last_client_gone (CalBackend *backend) -{ - g_return_if_fail (backend != NULL); - g_return_if_fail (IS_CAL_BACKEND (backend)); - - gtk_signal_emit (GTK_OBJECT (backend), cal_backend_signals[LAST_CLIENT_GONE]); -} - -/** - * cal_backend_opened: - * @backend: A calendar backend. - * @status: Open status code. - * - * Emits the "opened" signal of a calendar backend. This function is to be used - * only by backend implementations. - **/ -void -cal_backend_opened (CalBackend *backend, CalBackendOpenStatus status) -{ - g_return_if_fail (backend != NULL); - g_return_if_fail (IS_CAL_BACKEND (backend)); - - gtk_signal_emit (GTK_OBJECT (backend), cal_backend_signals[OPENED], - status); -} - -/** - * cal_backend_obj_updated: - * @backend: A calendar backend. - * @uid: Unique identifier of the component that was updated. - * - * Emits the "obj_updated" signal of a calendar backend. This function is to be - * used only by backend implementations. - **/ -void -cal_backend_obj_updated (CalBackend *backend, const char *uid) -{ - g_return_if_fail (backend != NULL); - g_return_if_fail (IS_CAL_BACKEND (backend)); - g_return_if_fail (uid != NULL); - - gtk_signal_emit (GTK_OBJECT (backend), cal_backend_signals[OBJ_UPDATED], - uid); -} - -/** - * cal_backend_obj_removed: - * @backend: A calendar backend. - * @uid: Unique identifier of the component that was removed. - * - * Emits the "obj_removed" signal of a calendar backend. This function is to be - * used only by backend implementations. - **/ -void -cal_backend_obj_removed (CalBackend *backend, const char *uid) -{ - g_return_if_fail (backend != NULL); - g_return_if_fail (IS_CAL_BACKEND (backend)); - g_return_if_fail (uid != NULL); - - gtk_signal_emit (GTK_OBJECT (backend), cal_backend_signals[OBJ_REMOVED], - uid); -} |