diff options
Diffstat (limited to 'calendar/pcs/cal-factory.c')
| -rw-r--r-- | calendar/pcs/cal-factory.c | 820 |
1 files changed, 0 insertions, 820 deletions
diff --git a/calendar/pcs/cal-factory.c b/calendar/pcs/cal-factory.c deleted file mode 100644 index 1df133ea90..0000000000 --- a/calendar/pcs/cal-factory.c +++ /dev/null @@ -1,820 +0,0 @@ -/* Evolution calendar factory - * - * Copyright (C) 2000 Ximian, Inc. - * Copyright (C) 2000 Ximian, Inc. - * - * Author: Federico Mena-Quintero <federico@ximian.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. - * - * 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 <ctype.h> -#include <stdio.h> -#include <gtk/gtksignal.h> -#include <liboaf/liboaf.h> -#include "e-util/e-url.h" -#include "evolution-calendar.h" -#include "cal.h" -#include "cal-backend.h" -#include "cal-factory.h" -#include "job.h" - -#define PARENT_TYPE BONOBO_X_OBJECT_TYPE -#define DEFAULT_CAL_FACTORY_OAF_ID "OAFIID:GNOME_Evolution_Wombat_CalendarFactory" - -static BonoboXObjectClass *parent_class; - -/* Private part of the CalFactory structure */ -struct _CalFactoryPrivate { - /* Hash table from URI method strings to GtkType * for backend class types */ - GHashTable *methods; - - /* Hash table from GnomeVFSURI structures to CalBackend objects */ - GHashTable *backends; - - /* OAFIID of the factory */ - char *iid; - - /* Whether we have been registered with OAF yet */ - guint registered : 1; -}; - -typedef struct -{ - CalFactory *factory; - GNOME_Evolution_Calendar_CalMode mode; - GNOME_Evolution_Calendar_StringSeq *list; -} CalFactoryUriData; - -/* Signal IDs */ -enum SIGNALS { - LAST_CALENDAR_GONE, - LAST_SIGNAL -}; - -static guint signals[LAST_SIGNAL]; - -/* Frees a method/GtkType * pair from the methods hash table */ -static void -free_method (gpointer key, gpointer value, gpointer data) -{ - char *method; - GtkType *type; - - method = key; - type = value; - - g_free (method); - g_free (type); -} - -/* Frees a uri/backend pair from the backends hash table */ -static void -free_backend (gpointer key, gpointer value, gpointer data) -{ - char *uri; - CalBackend *backend; - - uri = key; - backend = value; - - g_free (uri); - gtk_object_unref (GTK_OBJECT (backend)); -} - -/* Opening calendars */ - -/* Looks up a calendar backend in a factory's hash table of uri->cal. If - * *non-NULL, orig_uri_return will be set to point to the original key in the - * *hash table. - */ -static CalBackend * -lookup_backend (CalFactory *factory, const char *uristr, char **orig_uri_return) -{ - CalFactoryPrivate *priv; - EUri *uri; - char *tmp; - gboolean found; - gpointer orig_key; - gpointer data; - - priv = factory->priv; - - uri = e_uri_new (uristr); - if (!uri) { - if (orig_uri_return) - *orig_uri_return = NULL; - - return NULL; - } - - tmp = e_uri_to_string (uri, FALSE); - found = g_hash_table_lookup_extended (priv->backends, tmp, &orig_key, &data); - g_free (tmp); - e_uri_free (uri); - - if (found) { - if (orig_uri_return) - *orig_uri_return = orig_key; - - return CAL_BACKEND (data); - } else { - if (orig_uri_return) - *orig_uri_return = FALSE; - - return NULL; - } -} - -/* Callback used when a backend loses its last connected client */ -static void -backend_last_client_gone_cb (CalBackend *backend, gpointer data) -{ - CalFactory *factory; - CalFactoryPrivate *priv; - CalBackend *ret_backend; - const char *uristr; - char *orig_uristr; - - fprintf (stderr, "backend_last_client_gone_cb() called!\n"); - - factory = CAL_FACTORY (data); - priv = factory->priv; - - /* Remove the backend from the hash table */ - - uristr = cal_backend_get_uri (backend); - g_assert (uristr != NULL); - - ret_backend = lookup_backend (factory, uristr, &orig_uristr); - g_assert (ret_backend != NULL); - g_assert (ret_backend == backend); - - g_hash_table_remove (priv->backends, orig_uristr); - g_free (orig_uristr); - - gtk_object_unref (GTK_OBJECT (backend)); - - /* Notify upstream if there are no more backends */ - - if (g_hash_table_size (priv->backends) == 0) - gtk_signal_emit (GTK_OBJECT (factory), signals[LAST_CALENDAR_GONE]); -} - -/* Adds a backend to the calendar factory's hash table */ -static void -add_backend (CalFactory *factory, const char *uristr, CalBackend *backend) -{ - CalFactoryPrivate *priv; - EUri *uri; - char *tmp; - - priv = factory->priv; - - uri = e_uri_new (uristr); - if (!uri) - return; - - tmp = e_uri_to_string (uri, FALSE); - g_hash_table_insert (priv->backends, tmp, backend); - e_uri_free (uri); - - gtk_signal_connect (GTK_OBJECT (backend), "last_client_gone", - GTK_SIGNAL_FUNC (backend_last_client_gone_cb), - factory); -} - -/* Tries to launch a backend for the method of the specified URI. If there is - * no such method registered in the factory, it sends the listener the - * MethodNotSupported error code. - */ -static CalBackend * -launch_backend_for_uri (CalFactory *factory, - const char *uristr, - GNOME_Evolution_Calendar_Listener listener) -{ - CalFactoryPrivate *priv; - const char *method; - GtkType *type; - CalBackend *backend; - EUri *uri; - - priv = factory->priv; - - uri = e_uri_new (uristr); - if (!uri) - return NULL; - - method = uri->protocol; - type = g_hash_table_lookup (priv->methods, method); - e_uri_free (uri); - - if (!type) { - CORBA_Environment ev; - - CORBA_exception_init (&ev); - GNOME_Evolution_Calendar_Listener_notifyCalOpened ( - listener, - GNOME_Evolution_Calendar_Listener_METHOD_NOT_SUPPORTED, - CORBA_OBJECT_NIL, - &ev); - - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("launch_backend_for_uri(): could not notify the listener"); - - CORBA_exception_free (&ev); - return NULL; - } - - backend = gtk_type_new (*type); - if (!backend) - g_message ("launch_backend_for_uri(): could not launch the backend"); - - return backend; -} - -/* Opens a calendar backend and puts it in the factory's backend hash table */ -static CalBackend * -open_backend (CalFactory *factory, const char *uristr, gboolean only_if_exists, - GNOME_Evolution_Calendar_Listener listener) -{ - CalFactoryPrivate *priv; - CalBackend *backend; - CalBackendOpenStatus status; - CORBA_Environment ev; - - priv = factory->priv; - - backend = launch_backend_for_uri (factory, uristr, listener); - if (!backend) - return NULL; - - status = cal_backend_open (backend, uristr, only_if_exists); - - switch (status) { - case CAL_BACKEND_OPEN_SUCCESS: - add_backend (factory, uristr, backend); - return backend; - - case CAL_BACKEND_OPEN_ERROR: - gtk_object_unref (GTK_OBJECT (backend)); - - CORBA_exception_init (&ev); - GNOME_Evolution_Calendar_Listener_notifyCalOpened ( - listener, - GNOME_Evolution_Calendar_Listener_ERROR, - CORBA_OBJECT_NIL, - &ev); - - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("open_backend(): could not notify the listener"); - - CORBA_exception_free (&ev); - return NULL; - - case CAL_BACKEND_OPEN_NOT_FOUND: - gtk_object_unref (GTK_OBJECT (backend)); - - CORBA_exception_init (&ev); - GNOME_Evolution_Calendar_Listener_notifyCalOpened ( - listener, - GNOME_Evolution_Calendar_Listener_NOT_FOUND, - CORBA_OBJECT_NIL, - &ev); - - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("open_backend(): could not notify the listener"); - - CORBA_exception_free (&ev); - return NULL; - - default: - g_assert_not_reached (); - return NULL; - } -} - -/* Adds a listener to a calendar backend by creating a calendar client interface - * object. - */ -static void -add_calendar_client (CalFactory *factory, - CalBackend *backend, - GNOME_Evolution_Calendar_Listener listener) -{ - Cal *cal; - CORBA_Environment ev; - - cal = cal_new (backend, listener); - if (!cal) { - g_message ("add_calendar_client(): could not create the calendar client interface"); - - CORBA_exception_init (&ev); - GNOME_Evolution_Calendar_Listener_notifyCalOpened ( - listener, - GNOME_Evolution_Calendar_Listener_ERROR, - CORBA_OBJECT_NIL, - &ev); - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("add_calendar_client(): could not notify the listener"); - - CORBA_exception_free (&ev); - return; - } - - cal_backend_add_cal (backend, cal); - - CORBA_exception_init (&ev); - GNOME_Evolution_Calendar_Listener_notifyCalOpened ( - listener, - GNOME_Evolution_Calendar_Listener_SUCCESS, - BONOBO_OBJREF (cal), - &ev); - - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("add_calendar_client(): could not notify the listener"); - bonobo_object_unref (BONOBO_OBJECT (cal)); - } - - CORBA_exception_free (&ev); -} - -/* Add a uri to a string list */ -static void -add_uri (gpointer key, gpointer value, gpointer data) -{ - CalFactoryUriData *cfud = data; - CalFactory *factory = cfud->factory; - GNOME_Evolution_Calendar_StringSeq *list = cfud->list; - GNOME_Evolution_Calendar_CalMode mode = cfud->mode; - char *uri_string = key; - CalBackend *backend; - - switch (mode) { - case GNOME_Evolution_Calendar_MODE_LOCAL: - backend = lookup_backend (factory, uri_string, NULL); - if (backend == NULL || cal_backend_get_mode (backend) != CAL_MODE_LOCAL) - return; - break; - case GNOME_Evolution_Calendar_MODE_REMOTE: - backend = lookup_backend (factory, uri_string, NULL); - if (backend == NULL || cal_backend_get_mode (backend) != CAL_MODE_REMOTE) - return; - break; - case GNOME_Evolution_Calendar_MODE_ANY: - break; - } - - list->_buffer[list->_length] = CORBA_string_dup (uri_string); - list->_length++; -} - -/* Job data */ -typedef struct { - CalFactory *factory; - char *uri; - gboolean only_if_exists; - GNOME_Evolution_Calendar_Listener listener; -} OpenJobData; - -/* Job handler for the open calendar command */ -static void -open_fn (gpointer data) -{ - OpenJobData *jd; - CalFactory *factory; - gboolean only_if_exists; - GNOME_Evolution_Calendar_Listener listener; - CalBackend *backend; - CORBA_Environment ev; - char *uri_string; - - jd = data; - g_assert (jd->uri != NULL); - - /* Check the URI */ - uri_string = g_strdup (jd->uri); - g_free (jd->uri); - - only_if_exists = jd->only_if_exists; - factory = jd->factory; - listener = jd->listener; - g_free (jd); - - if (!uri_string) { - CORBA_exception_init (&ev); - GNOME_Evolution_Calendar_Listener_notifyCalOpened ( - listener, - GNOME_Evolution_Calendar_Listener_ERROR, - CORBA_OBJECT_NIL, - &ev); - - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("open_fn(): Could not notify the listener!"); - - CORBA_exception_free (&ev); - goto out; - } - - /* Look up the backend and create it if needed */ - - backend = lookup_backend (factory, uri_string, NULL); - - if (!backend) - backend = open_backend (factory, uri_string, only_if_exists, listener); - - if (backend) - add_calendar_client (factory, backend, listener); - - out: - - CORBA_exception_init (&ev); - CORBA_Object_release (listener, &ev); - - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("open_fn(): could not release the listener"); - - CORBA_exception_free (&ev); -} - - - -static void -impl_CalFactory_open (PortableServer_Servant servant, - const CORBA_char *str_uri, - CORBA_boolean only_if_exists, - GNOME_Evolution_Calendar_Listener listener, - CORBA_Environment *ev) -{ - CalFactory *factory; - CalFactoryPrivate *priv; - CORBA_Environment ev2; - gboolean result; - OpenJobData *jd; - GNOME_Evolution_Calendar_Listener listener_copy; - GtkType *type; - EUri *uri; - - factory = CAL_FACTORY (bonobo_object_from_servant (servant)); - priv = factory->priv; - - /* check URI to see if we support it */ - - uri = e_uri_new (str_uri); - if (!uri) { - CORBA_exception_set (ev, CORBA_USER_EXCEPTION, - ex_GNOME_Evolution_Calendar_CalFactory_InvalidURI, - NULL); - return; - } - - type = g_hash_table_lookup (priv->methods, uri->protocol); - - e_uri_free (uri); - if (!type) { - CORBA_exception_set (ev, CORBA_USER_EXCEPTION, - ex_GNOME_Evolution_Calendar_CalFactory_UnsupportedMethod, - NULL); - return; - } - - /* duplicate the listener object */ - CORBA_exception_init (&ev2); - result = CORBA_Object_is_nil (listener, &ev2); - - if (ev2._major != CORBA_NO_EXCEPTION || result) { - CORBA_exception_set (ev, CORBA_USER_EXCEPTION, - ex_GNOME_Evolution_Calendar_CalFactory_NilListener, - NULL); - - CORBA_exception_free (&ev2); - return; - } - CORBA_exception_free (&ev2); - - CORBA_exception_init (&ev2); - listener_copy = CORBA_Object_duplicate (listener, &ev2); - - if (ev2._major != CORBA_NO_EXCEPTION) { - g_message ("CalFactory_open(): could not duplicate the listener"); - CORBA_exception_free (&ev2); - CORBA_exception_set (ev, CORBA_USER_EXCEPTION, - ex_GNOME_Evolution_Calendar_CalFactory_NilListener, - NULL); - return; - } - - CORBA_exception_free (&ev2); - - /* add new asynchronous job */ - jd = g_new (OpenJobData, 1); - jd->factory = factory; - jd->uri = g_strdup (str_uri); - jd->only_if_exists = only_if_exists; - jd->listener = listener_copy; - - job_add (open_fn, jd); -} - -static GNOME_Evolution_Calendar_StringSeq * -impl_CalFactory_uriList (PortableServer_Servant servant, - GNOME_Evolution_Calendar_CalMode mode, - CORBA_Environment *ev) -{ - CalFactory *factory; - CalFactoryPrivate *priv; - CalFactoryUriData cfud; - GNOME_Evolution_Calendar_StringSeq *list; - - factory = CAL_FACTORY (bonobo_object_from_servant (servant)); - priv = factory->priv; - - list = GNOME_Evolution_Calendar_StringSeq__alloc (); - list->_length = 0; - list->_maximum = g_hash_table_size (priv->backends); - list->_buffer = CORBA_sequence_CORBA_string_allocbuf (list->_maximum); - - cfud.factory = factory; - cfud.mode = mode; - cfud.list = list; - g_hash_table_foreach (priv->backends, add_uri, &cfud); - - return list; - -} - - - -/** - * cal_factory_new: - * @void: - * - * Creates a new #CalFactory object. - * - * Return value: A newly-created #CalFactory, or NULL if its corresponding CORBA - * object could not be created. - **/ -CalFactory * -cal_factory_new (void) -{ - CalFactory *factory; - - factory = gtk_type_new (CAL_FACTORY_TYPE); - - return factory; -} - -/* Destroy handler for the calendar */ -static void -cal_factory_destroy (GtkObject *object) -{ - CalFactory *factory; - CalFactoryPrivate *priv; - - g_return_if_fail (object != NULL); - g_return_if_fail (IS_CAL_FACTORY (object)); - - factory = CAL_FACTORY (object); - priv = factory->priv; - - g_hash_table_foreach (priv->methods, free_method, NULL); - g_hash_table_destroy (priv->methods); - priv->methods = NULL; - - /* Should we assert that there are no more backends? */ - - g_hash_table_foreach (priv->backends, free_backend, NULL); - g_hash_table_destroy (priv->backends); - priv->backends = NULL; - - if (priv->registered) { - oaf_active_server_unregister (priv->iid, BONOBO_OBJREF (factory)); - priv->registered = FALSE; - } - g_free (priv->iid); - - g_free (priv); - factory->priv = NULL; - - if (GTK_OBJECT_CLASS (parent_class)->destroy) - (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); -} - -/* Class initialization function for the calendar factory */ -static void -cal_factory_class_init (CalFactoryClass *klass) -{ - GtkObjectClass *object_class = (GtkObjectClass *) klass; - POA_GNOME_Evolution_Calendar_CalFactory__epv *epv = &klass->epv; - - parent_class = gtk_type_class (bonobo_object_get_type ()); - - signals[LAST_CALENDAR_GONE] = - gtk_signal_new ("last_calendar_gone", - GTK_RUN_FIRST, - object_class->type, - GTK_SIGNAL_OFFSET (CalFactoryClass, last_calendar_gone), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL); - - /* Class method overrides */ - object_class->destroy = cal_factory_destroy; - - /* Epv methods */ - epv->open = impl_CalFactory_open; - epv->uriList = impl_CalFactory_uriList; -} - -/* Object initialization function for the calendar factory */ -static void -cal_factory_init (CalFactory *factory) -{ - CalFactoryPrivate *priv; - - priv = g_new0 (CalFactoryPrivate, 1); - factory->priv = priv; - - priv->methods = g_hash_table_new (g_str_hash, g_str_equal); - priv->backends = g_hash_table_new (g_str_hash, g_str_equal); - priv->registered = FALSE; -} - -BONOBO_X_TYPE_FUNC_FULL (CalFactory, - GNOME_Evolution_Calendar_CalFactory, - PARENT_TYPE, - cal_factory); - -/* Returns the lowercase version of a string */ -static char * -str_tolower (const char *s) -{ - char *str; - unsigned char *p; - - str = g_strdup (s); - for (p = str; *p; p++) - if (isalpha (*p)) - *p = tolower (*p); - - return str; -} - -/** - * cal_factory_oaf_register: - * @factory: A calendar factory. - * @iid: OAFIID for the factory to be registered. - * - * Registers a calendar factory with the OAF object activation daemon. This - * function must be called before any clients can activate the factory. - * - * Return value: TRUE on success, FALSE otherwise. - **/ -gboolean -cal_factory_oaf_register (CalFactory *factory, const char *iid) -{ - CalFactoryPrivate *priv; - OAF_RegistrationResult result; - char *tmp_iid; - - g_return_val_if_fail (factory != NULL, FALSE); - g_return_val_if_fail (IS_CAL_FACTORY (factory), FALSE); - - priv = factory->priv; - - g_return_val_if_fail (!priv->registered, FALSE); - - /* if iid is NULL, use the default factory OAFIID */ - if (iid) - tmp_iid = g_strdup (iid); - else - tmp_iid = g_strdup (DEFAULT_CAL_FACTORY_OAF_ID); - - result = oaf_active_server_register (tmp_iid, BONOBO_OBJREF (factory)); - - switch (result) { - case OAF_REG_SUCCESS: - priv->registered = TRUE; - priv->iid = tmp_iid; - return TRUE; - - case OAF_REG_NOT_LISTED: - g_message ("cal_factory_oaf_register(): Cannot register the calendar factory: " - "not listed"); - break; - - case OAF_REG_ALREADY_ACTIVE: - g_message ("cal_factory_oaf_register(): Cannot register the calendar factory: " - "already active"); - break; - - case OAF_REG_ERROR: - default: - g_message ("cal_factory_oaf_register(): Cannot register the calendar factory: " - "generic error"); - break; - } - - g_free (tmp_iid); - - return FALSE; -} - -/** - * cal_factory_register_method: - * @factory: A calendar factory. - * @method: Method for the URI, i.e. "http", "file", etc. - * @backend_type: Class type of the backend to create for this @method. - * - * Registers the type of a #CalBackend subclass that will be used to handle URIs - * with a particular method. When the factory is asked to open a particular - * URI, it will look in its list of registered methods and create a backend of - * the appropriate type. - **/ -void -cal_factory_register_method (CalFactory *factory, const char *method, GtkType backend_type) -{ - CalFactoryPrivate *priv; - GtkType *type; - char *method_str; - - g_return_if_fail (factory != NULL); - g_return_if_fail (IS_CAL_FACTORY (factory)); - g_return_if_fail (method != NULL); - g_return_if_fail (backend_type != 0); - g_return_if_fail (gtk_type_is_a (backend_type, CAL_BACKEND_TYPE)); - - priv = factory->priv; - - method_str = str_tolower (method); - - type = g_hash_table_lookup (priv->methods, method_str); - if (type) { - g_message ("cal_factory_register_method(): Method `%s' already registered!", - method_str); - g_free (method_str); - return; - } - - type = g_new (GtkType, 1); - *type = backend_type; - - g_hash_table_insert (priv->methods, method_str, type); -} - -/** - * cal_factory_get_n_backends: - * @factory: A calendar factory. - * - * Queries the number of running calendar backends in a calendar factory. - * - * Return value: Number of running backends. - **/ -int -cal_factory_get_n_backends (CalFactory *factory) -{ - CalFactoryPrivate *priv; - - g_return_val_if_fail (factory != NULL, -1); - g_return_val_if_fail (IS_CAL_FACTORY (factory), -1); - - priv = factory->priv; - return g_hash_table_size (priv->backends); -} - -/* Frees a uri/backend pair from the backends hash table */ -static void -dump_backend (gpointer key, gpointer value, gpointer data) -{ - char *uri; - CalBackend *backend; - - uri = key; - backend = value; - - g_message (" %s: %p", uri, backend); -} - -void -cal_factory_dump_active_backends (CalFactory *factory) -{ - CalFactoryPrivate *priv; - - g_message ("Active PCS backends"); - - priv = factory->priv; - g_hash_table_foreach (priv->backends, dump_backend, NULL); -} |