From 0cca49e2662d0f61cc50206b55444ba5d657cb9a Mon Sep 17 00:00:00 2001 From: nobody Date: Tue, 22 May 2001 18:44:11 +0000 Subject: This commit was manufactured by cvs2svn to create tag 'GNOME_LIBS_1_4_1_4'. svn path=/tags/GNOME_LIBS_1_4_1_4/; revision=9929 --- calendar/pcs/cal-factory.c | 652 --------------------------------------------- 1 file changed, 652 deletions(-) delete mode 100644 calendar/pcs/cal-factory.c (limited to 'calendar/pcs/cal-factory.c') diff --git a/calendar/pcs/cal-factory.c b/calendar/pcs/cal-factory.c deleted file mode 100644 index 2abbd0b6d1..0000000000 --- a/calendar/pcs/cal-factory.c +++ /dev/null @@ -1,652 +0,0 @@ -/* Evolution calendar factory - * - * Copyright (C) 2000 Helix Code, Inc. - * Copyright (C) 2000 Ximian, Inc. - * - * Author: Federico Mena-Quintero - * - * 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 -#include -#include -#include -#include -#include "cal.h" -#include "cal-backend.h" -#include "cal-factory.h" -#include "job.h" - -#define PARENT_TYPE BONOBO_X_OBJECT_TYPE -#define 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; - - /* Whether we have been registered with OAF yet */ - guint registered : 1; -}; - -/* 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) -{ - GnomeVFSURI *uri; - CalBackend *backend; - - uri = key; - backend = value; - - gnome_vfs_uri_unref (uri); - gtk_object_unref (GTK_OBJECT (backend)); -} - -/* Opening calendars */ - -/* 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), 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_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, GnomeVFSURI *uri, 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, uri, listener); - if (!backend) - return NULL; - - status = cal_backend_open (backend, uri, only_if_exists); - - switch (status) { - case CAL_BACKEND_OPEN_SUCCESS: - add_backend (factory, uri, 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); -} - -/* 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; - GnomeVFSURI *uri; - gboolean only_if_exists; - 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); - - only_if_exists = jd->only_if_exists; - factory = jd->factory; - listener = jd->listener; - g_free (jd); - - if (!uri) { - 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); - - if (!backend) - backend = open_backend (factory, uri, only_if_exists, 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 ("open_fn(): could not release the listener"); - - CORBA_exception_free (&ev); -} - - - -static void -impl_CalFactory_open (PortableServer_Servant servant, - const CORBA_char *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; - - 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); - - 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); - - jd = g_new (OpenJobData, 1); - jd->factory = factory; - jd->uri = g_strdup (uri); - jd->only_if_exists = only_if_exists; - jd->listener = listener_copy; - - job_add (open_fn, jd); -} - - - -/** - * 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 (CAL_FACTORY_OAF_ID, BONOBO_OBJREF (factory)); - priv->registered = FALSE; - } - - 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; -} - -/* 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); - 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. - * - * 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) -{ - CalFactoryPrivate *priv; - OAF_RegistrationResult result; - - 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); - - result = oaf_active_server_register (CAL_FACTORY_OAF_ID, BONOBO_OBJREF (factory)); - - switch (result) { - case OAF_REG_SUCCESS: - priv->registered = TRUE; - 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; - } - - 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); -} -- cgit v1.2.3