diff options
Diffstat (limited to 'calendar/pcs/cal-factory.c')
| -rw-r--r-- | calendar/pcs/cal-factory.c | 858 |
1 files changed, 0 insertions, 858 deletions
diff --git a/calendar/pcs/cal-factory.c b/calendar/pcs/cal-factory.c deleted file mode 100644 index 3834c34e62..0000000000 --- a/calendar/pcs/cal-factory.c +++ /dev/null @@ -1,858 +0,0 @@ -/* Evolution calendar factory - * - * 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 <ctype.h> -#include <stdio.h> -#include <gtk/gtksignal.h> -#include "cal.h" -#include "cal-backend.h" -#include "cal-factory.h" -#include "job.h" - - - -/* 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; -}; - - - -/* Signal IDs */ -enum { - LAST_CALENDAR_GONE, - LAST_SIGNAL -}; - -static void cal_factory_class_init (CalFactoryClass *class); -static void cal_factory_init (CalFactory *factory); -static void cal_factory_destroy (GtkObject *object); - -static POA_GNOME_Evolution_Calendar_CalFactory__vepv cal_factory_vepv; - -static BonoboObjectClass *parent_class; - -static guint cal_factory_signals[LAST_SIGNAL]; - - - -/** - * cal_factory_get_type: - * @void: - * - * Registers the #CalFactory class if necessary, and returns the type ID - * associated to it. - * - * Return value: The type ID of the #CalFactory class. - **/ -GtkType -cal_factory_get_type (void) -{ - static GtkType cal_factory_type = 0; - - if (!cal_factory_type) { - static const GtkTypeInfo cal_factory_info = { - "CalFactory", - sizeof (CalFactory), - sizeof (CalFactoryClass), - (GtkClassInitFunc) cal_factory_class_init, - (GtkObjectInitFunc) cal_factory_init, - NULL, /* reserved_1 */ - NULL, /* reserved_2 */ - (GtkClassInitFunc) NULL - }; - - cal_factory_type = gtk_type_unique (bonobo_object_get_type (), &cal_factory_info); - } - - return cal_factory_type; -} - -/* CORBA class initialization function for the calendar factory */ -static void -init_cal_factory_corba_class (void) -{ - cal_factory_vepv.Bonobo_Unknown_epv = bonobo_object_get_epv (); - cal_factory_vepv.GNOME_Evolution_Calendar_CalFactory_epv = cal_factory_get_epv (); -} - -/* Class initialization function for the calendar factory */ -static void -cal_factory_class_init (CalFactoryClass *class) -{ - GtkObjectClass *object_class; - - object_class = (GtkObjectClass *) class; - - parent_class = gtk_type_class (bonobo_object_get_type ()); - - cal_factory_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, cal_factory_signals, LAST_SIGNAL); - - object_class->destroy = cal_factory_destroy; - - init_cal_factory_corba_class (); -} - -/* 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 (gnome_vfs_uri_hash, gnome_vfs_uri_hequal); -} - -/* 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) -{ - GnomeVFSURI *uri; - CalBackend *backend; - - uri = key; - backend = value; - - gnome_vfs_uri_unref (uri); - gtk_object_unref (GTK_OBJECT (backend)); -} - -/* 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; - - g_free (priv); - factory->priv = NULL; - - if (GTK_OBJECT_CLASS (parent_class)->destroy) - (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); -} - - - -/* Loading and creating calendars */ - -/* Job data */ -typedef struct { - CalFactory *factory; - char *uri; - GNOME_Evolution_Calendar_Listener listener; -} LoadCreateJobData; - -/* Queues a load or create request */ -static void -queue_load_create_job (CalFactory *factory, const char *uri, GNOME_Evolution_Calendar_Listener listener, - JobFunc func) -{ - LoadCreateJobData *jd; - CORBA_Environment ev; - GNOME_Evolution_Calendar_Listener listener_copy; - gboolean result; - - g_assert (uri != NULL); - - CORBA_exception_init (&ev); - result = CORBA_Object_is_nil (listener, &ev); - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("queue_load_create_job(): could not see if the listener was NIL"); - CORBA_exception_free (&ev); - return; - } - CORBA_exception_free (&ev); - - if (result) { - g_message ("queue_load_create_job(): cannot operate on a NIL listener!"); - return; - } - - listener_copy = CORBA_Object_duplicate (listener, &ev); - - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("queue_load_create_job(): could not duplicate the listener"); - CORBA_exception_free (&ev); - return; - } - - CORBA_exception_free (&ev); - - jd = g_new (LoadCreateJobData, 1); - jd->factory = factory; - jd->uri = g_strdup (uri); - jd->listener = listener_copy; - - job_add (func, jd); -} - -/* Looks up a calendar backend in a factory's hash table of uri->cal */ -static CalBackend * -lookup_backend (CalFactory *factory, GnomeVFSURI *uri) -{ - CalFactoryPrivate *priv; - CalBackend *backend; - - priv = factory->priv; - - backend = g_hash_table_lookup (priv->backends, uri); - return backend; -} - -/* 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; - GnomeVFSURI *uri; - gpointer orig_key; - gboolean result; - GnomeVFSURI *orig_uri; - - fprintf (stderr, "backend_last_client_gone_cb() called!\n"); - - factory = CAL_FACTORY (data); - priv = factory->priv; - - /* Remove the backend from the hash table */ - - uri = cal_backend_get_uri (backend); - g_assert (uri != NULL); - - result = g_hash_table_lookup_extended (priv->backends, uri, &orig_key, NULL); - g_assert (result != FALSE); - - orig_uri = orig_key; - - g_hash_table_remove (priv->backends, orig_uri); - gnome_vfs_uri_unref (orig_uri); - - 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), cal_factory_signals[LAST_CALENDAR_GONE]); -} - -/* Adds a backend to the calendar factory's hash table */ -static void -add_backend (CalFactory *factory, GnomeVFSURI *uri, CalBackend *backend) -{ - CalFactoryPrivate *priv; - - priv = factory->priv; - - gnome_vfs_uri_ref (uri); - g_hash_table_insert (priv->backends, uri, backend); - - 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, GnomeVFSURI *uri, GNOME_Evolution_Calendar_Listener listener) -{ - CalFactoryPrivate *priv; - char *method; - GtkType *type; - CalBackend *backend; - - priv = factory->priv; - - /* FIXME: add an accessor function to gnome-vfs */ - method = uri->method_string; - - type = g_hash_table_lookup (priv->methods, method); - - if (!type) { - CORBA_Environment ev; - - CORBA_exception_init (&ev); - GNOME_Evolution_Calendar_Listener_notifyCalLoaded ( - 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; -} - -/* Loads a calendar backend and puts it in the factory's backend hash table */ -static CalBackend * -load_backend (CalFactory *factory, GnomeVFSURI *uri, GNOME_Evolution_Calendar_Listener listener) -{ - CalFactoryPrivate *priv; - CalBackend *backend; - CalBackendLoadStatus status; - CORBA_Environment ev; - - priv = factory->priv; - - backend = launch_backend_for_uri (factory, uri, listener); - if (!backend) - return NULL; - - status = cal_backend_load (backend, uri); - - switch (status) { - case CAL_BACKEND_LOAD_SUCCESS: - add_backend (factory, uri, backend); - return backend; - - case CAL_BACKEND_LOAD_ERROR: - gtk_object_unref (GTK_OBJECT (backend)); - - CORBA_exception_init (&ev); - GNOME_Evolution_Calendar_Listener_notifyCalLoaded (listener, - GNOME_Evolution_Calendar_Listener_ERROR, - CORBA_OBJECT_NIL, - &ev); - - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("load_backend(): could not notify the listener"); - - CORBA_exception_free (&ev); - return NULL; - - default: - g_assert_not_reached (); - return NULL; - } -} - -/* Creates a calendar backend and puts it in the factory's backend hash table */ -static CalBackend * -create_backend (CalFactory *factory, GnomeVFSURI *uri, GNOME_Evolution_Calendar_Listener listener) -{ - CalFactoryPrivate *priv; - CalBackend *backend; - - priv = factory->priv; - - backend = launch_backend_for_uri (factory, uri, listener); - if (!backend) - return NULL; - - cal_backend_create (backend, uri); - - /* FIXME: add error reporting to cal_backend_create() */ -#if 0 - { - CORBA_Environment ev; - - CORBA_exception_init (&ev); - GNOME_Evolution_Calendar_Listener_notifyCalLoaded (listener, - GNOME_Evolution_Calendar_Listener_ERROR, - CORBA_OBJECT_NIL, - &ev); - - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("create_fn(): could not notify the listener"); - - CORBA_exception_free (&ev); - } -#endif - - add_backend (factory, uri, backend); - - return backend; -} - -/* 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_notifyCalLoaded (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_notifyCalLoaded (listener, - GNOME_Evolution_Calendar_Listener_SUCCESS, - bonobo_object_corba_objref (BONOBO_OBJECT (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); -} - -/* Job handler for the load calendar command */ -static void -load_fn (gpointer data) -{ - LoadCreateJobData *jd; - CalFactory *factory; - GnomeVFSURI *uri; - GNOME_Evolution_Calendar_Listener listener; - CalBackend *backend; - CORBA_Environment ev; - - jd = data; - g_assert (jd->uri != NULL); - - /* Check the URI */ - - uri = gnome_vfs_uri_new (jd->uri); - g_free (jd->uri); - - factory = jd->factory; - listener = jd->listener; - g_free (jd); - - if (!uri) { - CORBA_exception_init (&ev); - GNOME_Evolution_Calendar_Listener_notifyCalLoaded (listener, - GNOME_Evolution_Calendar_Listener_ERROR, - CORBA_OBJECT_NIL, - &ev); - - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("load_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); - - if (!backend) - backend = load_backend (factory, uri, listener); - - gnome_vfs_uri_unref (uri); - - 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 ("load_fn(): could not release the listener"); - - CORBA_exception_free (&ev); -} - -/* Job handler for the create calendar command */ -static void -create_fn (gpointer data) -{ - LoadCreateJobData *jd; - CalFactory *factory; - GnomeVFSURI *uri; - GNOME_Evolution_Calendar_Listener listener; - CalBackend *backend; - CORBA_Environment ev; - - jd = data; - g_assert (jd->uri != NULL); - - /* Check the URI */ - - uri = gnome_vfs_uri_new (jd->uri); - g_free (jd->uri); - - factory = jd->factory; - listener = jd->listener; - g_free (jd); - - if (!uri) { - CORBA_exception_init (&ev); - GNOME_Evolution_Calendar_Listener_notifyCalLoaded (listener, - GNOME_Evolution_Calendar_Listener_ERROR, - CORBA_OBJECT_NIL, - &ev); - - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("create_fn(): Could not notify the listener!"); - - CORBA_exception_free (&ev); - goto out; - } - - /* Check that the backend is not in use */ - - backend = lookup_backend (factory, uri); - - if (backend) { - CORBA_exception_init (&ev); - GNOME_Evolution_Calendar_Listener_notifyCalLoaded (listener, - GNOME_Evolution_Calendar_Listener_IN_USE, - CORBA_OBJECT_NIL, - &ev); - - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("create_fn(): could not notify the listener"); - - CORBA_exception_free (&ev); - goto out; - } - - /* Create the backend */ - - backend = create_backend (factory, uri, listener); - - if (backend) - add_calendar_client (factory, backend, listener); - - gnome_vfs_uri_unref (uri); - - out: - - CORBA_exception_init (&ev); - CORBA_Object_release (listener, &ev); - - if (ev._major != CORBA_NO_EXCEPTION) - g_message ("create_fn(): could not release the listener"); - - CORBA_exception_free (&ev); -} - - - -/* CORBA servant implementation */ - -/* CalFactory::load method */ -static void -CalFactory_load (PortableServer_Servant servant, - const CORBA_char *uri, - GNOME_Evolution_Calendar_Listener listener, - CORBA_Environment *ev) -{ - CalFactory *factory; - CalFactoryPrivate *priv; - CORBA_Environment ev2; - gboolean result; - - factory = CAL_FACTORY (bonobo_object_from_servant (servant)); - priv = factory->priv; - - 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); - - queue_load_create_job (factory, uri, listener, load_fn); -} - -/* CalFactory::create method */ -static void -CalFactory_create (PortableServer_Servant servant, - const CORBA_char *uri, - GNOME_Evolution_Calendar_Listener listener, - CORBA_Environment *ev) -{ - CalFactory *factory; - CalFactoryPrivate *priv; - - factory = CAL_FACTORY (bonobo_object_from_servant (servant)); - priv = factory->priv; - - queue_load_create_job (factory, uri, listener, create_fn); -} - -/** - * cal_factory_get_epv: - * @void: - * - * Creates an EPV for the CalFactory CORBA class. - * - * Return value: A newly-allocated EPV. - **/ -POA_GNOME_Evolution_Calendar_CalFactory__epv * -cal_factory_get_epv (void) -{ - POA_GNOME_Evolution_Calendar_CalFactory__epv *epv; - - epv = g_new0 (POA_GNOME_Evolution_Calendar_CalFactory__epv, 1); - epv->load = CalFactory_load; - epv->create = CalFactory_create; - - return epv; -} - - - -/** - * cal_factory_construct: - * @factory: A calendar factory. - * @corba_factory: CORBA object for the calendar factory. - * - * Constructs a calendar factory by binding the corresponding CORBA object to - * it. - * - * Return value: The same object as the @factory argument. - **/ -CalFactory * -cal_factory_construct (CalFactory *factory, GNOME_Evolution_Calendar_CalFactory corba_factory) -{ - g_return_val_if_fail (factory != NULL, NULL); - g_return_val_if_fail (IS_CAL_FACTORY (factory), NULL); - - bonobo_object_construct (BONOBO_OBJECT (factory), corba_factory); - return factory; -} - -/** - * cal_factory_corba_object_create: - * @object: #BonoboObject that will wrap the CORBA object. - * - * Creates and activates the CORBA object that is wrapped by the specified - * calendar factory @object. - * - * Return value: An activated object reference or #CORBA_OBJECT_NIL in case of - * failure. - **/ -GNOME_Evolution_Calendar_CalFactory -cal_factory_corba_object_create (BonoboObject *object) -{ - POA_GNOME_Evolution_Calendar_CalFactory *servant; - CORBA_Environment ev; - - g_return_val_if_fail (object != NULL, CORBA_OBJECT_NIL); - g_return_val_if_fail (IS_CAL_FACTORY (object), CORBA_OBJECT_NIL); - - servant = (POA_GNOME_Evolution_Calendar_CalFactory *) g_new0 (BonoboObjectServant, 1); - servant->vepv = &cal_factory_vepv; - - CORBA_exception_init (&ev); - POA_GNOME_Evolution_Calendar_CalFactory__init ((PortableServer_Servant) servant, &ev); - - if (ev._major != CORBA_NO_EXCEPTION) { - g_message ("cal_factory_corba_object_create(): could not init the servant"); - g_free (servant); - CORBA_exception_free (&ev); - return CORBA_OBJECT_NIL; - } - - CORBA_exception_free (&ev); - return (GNOME_Evolution_Calendar_CalFactory) bonobo_object_activate_servant (object, servant); -} - -/** - * 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; - CORBA_Environment ev; - GNOME_Evolution_Calendar_CalFactory corba_factory; - gboolean retval; - - factory = gtk_type_new (CAL_FACTORY_TYPE); - - corba_factory = cal_factory_corba_object_create (BONOBO_OBJECT (factory)); - - CORBA_exception_init (&ev); - retval = CORBA_Object_is_nil (corba_factory, &ev); - - if (ev._major != CORBA_NO_EXCEPTION || retval) { - g_message ("cal_factory_new(): could not create the CORBA factory"); - bonobo_object_unref (BONOBO_OBJECT (factory)); - CORBA_exception_free (&ev); - return NULL; - } - CORBA_exception_free (&ev); - - return cal_factory_construct (factory, corba_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_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 load 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); -} |