path: root/shell/evolution-storage-set-view.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* evolution-storage-set-view.c
 *
 * Copyright (C) 2000, 2001, 2002  Ximian, Inc.
 *
 * 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.
 *
 * Author: Ettore Perazzoli
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "evolution-storage-set-view.h"
#include "e-shell-constants.h"

#include <gal/util/e-util.h>

#include <gtk/gtksignal.h>

#include <string.h>


#define PARENT_TYPE bonobo_object_get_type ()
static BonoboObjectClass *parent_class = NULL;

struct _EvolutionStorageSetViewPrivate {
    GtkWidget *storage_set_view_widget;
    GList *listeners;
};


/* EStorageSet widget callbacks.  */

static void
storage_set_view_widget_folder_selected_cb (EStorageSetView *storage_set_view_widget,
                        const char *uri,
                        void *data)
{
    EvolutionStorageSetView *storage_set_view;
    EvolutionStorageSetViewPrivate *priv;
    GList *p;

    storage_set_view = EVOLUTION_STORAGE_SET_VIEW (data);
    priv = storage_set_view->priv;

    for (p = priv->listeners; p != NULL; p = p->next) {
        CORBA_Environment ev;
        GNOME_Evolution_StorageSetViewListener listener;

        CORBA_exception_init (&ev);

        listener = (GNOME_Evolution_StorageSetViewListener) p->data;
        GNOME_Evolution_StorageSetViewListener_notifyFolderSelected (listener, uri, &ev);

        /* FIXME: What if we fail?  */

        CORBA_exception_free (&ev);
    }
}

static void
storage_set_view_widget_folder_toggled_cb (EStorageSetView *storage_set_view_widget,
                       void *data)
{
    EvolutionStorageSetView *storage_set_view;
    EvolutionStorageSetViewPrivate *priv;
    GList *p;

    storage_set_view = EVOLUTION_STORAGE_SET_VIEW (data);
    priv = storage_set_view->priv;

    for (p = priv->listeners; p != NULL; p = p->next) {
        CORBA_Environment ev;
        GNOME_Evolution_StorageSetViewListener listener;

        CORBA_exception_init (&ev);

        listener = (GNOME_Evolution_StorageSetViewListener) p->data;
        GNOME_Evolution_StorageSetViewListener_notifyFolderToggled (listener, &ev);

        /* FIXME: What if we fail? */

        CORBA_exception_free (&ev);
    }
}


/* Listener handling.  */

static GList *
find_listener_in_list (GNOME_Evolution_StorageSetViewListener listener,
               GList *list)
{
    CORBA_Environment ev;
    GList *p;

    CORBA_exception_init (&ev);

    for (p = list; p != NULL; p = p->next) {
        GNOME_Evolution_StorageSetViewListener listener_item;

        listener_item = (GNOME_Evolution_StorageSetViewListener) p->data;
        if (CORBA_Object_is_equivalent (listener, listener_item, &ev))
            break;
    }

    CORBA_exception_free (&ev);

    return p;
}

static gboolean
add_listener (EvolutionStorageSetView *storage_set_view,
          GNOME_Evolution_StorageSetViewListener listener)
{
    EvolutionStorageSetViewPrivate *priv;
    CORBA_Environment ev;
    const char *current_uri;
    GNOME_Evolution_StorageSetViewListener copy_of_listener;

    priv = storage_set_view->priv;

    if (find_listener_in_list (listener, priv->listeners) != NULL)
        return FALSE;

    CORBA_exception_init (&ev);

    copy_of_listener = CORBA_Object_duplicate (listener, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        CORBA_exception_free (&ev);
        return FALSE;
    }

    priv->listeners = g_list_prepend (priv->listeners, copy_of_listener);

    current_uri = e_storage_set_view_get_current_folder (E_STORAGE_SET_VIEW (priv->storage_set_view_widget));
    if (current_uri != NULL)
        GNOME_Evolution_StorageSetViewListener_notifyFolderSelected (listener, current_uri, &ev);

    CORBA_exception_free (&ev);

    return TRUE;
}

static gboolean
remove_listener (EvolutionStorageSetView *storage_set_view,
         GNOME_Evolution_StorageSetViewListener listener)
{
    EvolutionStorageSetViewPrivate *priv;
    GList *listener_node;
    CORBA_Environment ev;

    priv = storage_set_view->priv;

    listener_node = find_listener_in_list (listener, priv->listeners);
    if (listener_node == NULL)
        return FALSE;

    CORBA_exception_init (&ev);
    CORBA_Object_release ((CORBA_Object) listener_node->data, &ev);
    CORBA_exception_free (&ev);

    priv->listeners = g_list_remove_link (priv->listeners, listener_node);

    return TRUE;
}


/* CORBA interface implementation.  */

static void
impl_StorageSetView_add_listener (PortableServer_Servant servant,
                  const GNOME_Evolution_StorageSetViewListener listener,
                  CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionStorageSetView *storage_set_view;

    bonobo_object = bonobo_object_from_servant (servant);
    storage_set_view = EVOLUTION_STORAGE_SET_VIEW (bonobo_object);

    if (! add_listener (storage_set_view, listener))
        CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
                     ex_GNOME_Evolution_StorageSetView_AlreadyListening, NULL);
}

static void
impl_StorageSetView_remove_listener (PortableServer_Servant servant,
                     const GNOME_Evolution_StorageSetViewListener listener,
                     CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionStorageSetView *storage_set_view;

    bonobo_object = bonobo_object_from_servant (servant);
    storage_set_view = EVOLUTION_STORAGE_SET_VIEW (bonobo_object);

    if (! remove_listener (storage_set_view, listener))
        CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
                     ex_GNOME_Evolution_StorageSetView_NotFound, NULL);
}

static CORBA_boolean
impl_StorageSetView__get_showFolders (PortableServer_Servant servant,
                      CORBA_Environment * ev)
{
    BonoboObject *bonobo_object;
    EvolutionStorageSetView *storage_set_view;
    EvolutionStorageSetViewPrivate *priv;

    bonobo_object = bonobo_object_from_servant (servant);
    storage_set_view = EVOLUTION_STORAGE_SET_VIEW (bonobo_object);
    priv = storage_set_view->priv;

    return e_storage_set_view_get_show_folders (E_STORAGE_SET_VIEW (priv->storage_set_view_widget));
}

static void
impl_StorageSetView__set_showFolders (PortableServer_Servant servant,
                      const CORBA_boolean value,
                      CORBA_Environment * ev)
{
    BonoboObject *bonobo_object;
    EvolutionStorageSetView *storage_set_view;
    EvolutionStorageSetViewPrivate *priv;

    bonobo_object = bonobo_object_from_servant (servant);
    storage_set_view = EVOLUTION_STORAGE_SET_VIEW (bonobo_object);
    priv = storage_set_view->priv;

    e_storage_set_view_set_show_folders (E_STORAGE_SET_VIEW (priv->storage_set_view_widget), value);
}

static void
impl_StorageSetView__set_showCheckboxes (PortableServer_Servant servant,
                     const CORBA_boolean value,
                     CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionStorageSetView *storage_set_view;
    EvolutionStorageSetViewPrivate *priv;

    bonobo_object = bonobo_object_from_servant (servant);
    storage_set_view = EVOLUTION_STORAGE_SET_VIEW (bonobo_object);
    priv = storage_set_view->priv;

    e_storage_set_view_set_show_checkboxes (E_STORAGE_SET_VIEW (priv->storage_set_view_widget),
                        value, NULL, NULL);
}

static CORBA_boolean
impl_StorageSetView__get_showCheckboxes (PortableServer_Servant servant,
                     CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionStorageSetView *storage_set_view;
    EvolutionStorageSetViewPrivate *priv;

    bonobo_object = bonobo_object_from_servant (servant);
    storage_set_view = EVOLUTION_STORAGE_SET_VIEW (bonobo_object);
    priv = storage_set_view->priv;

    return e_storage_set_view_get_show_checkboxes (E_STORAGE_SET_VIEW (priv->storage_set_view_widget));
}

static void
impl_StorageSetView__set_checkedFolders (PortableServer_Servant servant,
                     const GNOME_Evolution_FolderList *list,
                     CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionStorageSetView *storage_set_view;
    EvolutionStorageSetViewPrivate *priv;
    GSList *path_list = NULL;
    int i;
    
    bonobo_object = bonobo_object_from_servant (servant);
    storage_set_view = EVOLUTION_STORAGE_SET_VIEW (bonobo_object);
    priv = storage_set_view->priv;

    for (i = 0; i < list->_length; i++) {
        if (strncmp (list->_buffer[i].evolutionUri, "evolution:", 10) != 0)
            continue;

        path_list = g_slist_append (path_list, g_strdup (list->_buffer[i].evolutionUri + 10));
    }

    e_storage_set_view_set_checkboxes_list (E_STORAGE_SET_VIEW (priv->storage_set_view_widget),
                        path_list);

    g_slist_foreach (path_list, (GFunc) g_free, NULL);
    g_slist_free (path_list);
}

static GNOME_Evolution_FolderList *
impl_StorageSetView__get_checkedFolders (PortableServer_Servant servant,
                     CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionStorageSetView *storage_set_view;
    EvolutionStorageSetViewPrivate *priv;
    EStorageSet *storage_set;
    GNOME_Evolution_FolderList *return_list;
    GSList *path_list;
    GSList *p;
    int num_folders;
    int i;

    bonobo_object = bonobo_object_from_servant (servant);
    storage_set_view = EVOLUTION_STORAGE_SET_VIEW (bonobo_object);
    priv = storage_set_view->priv;

    path_list = e_storage_set_view_get_checkboxes_list (E_STORAGE_SET_VIEW (priv->storage_set_view_widget));
    num_folders = g_slist_length (path_list);

    return_list = GNOME_Evolution_FolderList__alloc ();
    return_list->_maximum = num_folders;
    return_list->_length  = num_folders;
    return_list->_buffer  = CORBA_sequence_GNOME_Evolution_Folder_allocbuf (return_list->_maximum);

    storage_set = e_storage_set_view_get_storage_set (E_STORAGE_SET_VIEW (priv->storage_set_view_widget));

    for (p = path_list, i = 0; p != NULL; p = p->next, i ++) {
        EFolder *folder;
        const char *path;
        char *evolution_uri;

        path = (const char *) p->data;

        folder = e_storage_set_get_folder (storage_set, path);
        if (folder == NULL) {
            g_warning ("Cannot find folder -- %s", path);

            /* Subtract here so that we don't start putting
               ininitialised blanks into the CORBA list */
            return_list->_length--;
            i--;
            continue;
        }

        evolution_uri = g_strconcat (E_SHELL_URI_PREFIX, path, NULL);
        e_folder_to_corba (folder, evolution_uri, return_list->_buffer + i);
        g_free (evolution_uri);
    }

    g_slist_foreach (path_list, (GFunc) g_free, NULL);
    g_slist_free (path_list);

    CORBA_sequence_set_release (return_list, TRUE);
    return return_list;
}


/* GObject methods.  */

static void
impl_dispose (GObject *object)
{
    /* (Nothing to do here.)  */

    (* G_OBJECT_CLASS (parent_class)->dispose) (object);
}

static void
impl_finalize (GObject *object)
{
    EvolutionStorageSetView *storage_set_view;
    EvolutionStorageSetViewPrivate *priv;
    CORBA_Environment ev;
    GList *p;

    storage_set_view = EVOLUTION_STORAGE_SET_VIEW (object);
    priv = storage_set_view->priv;

    CORBA_exception_init (&ev);

    for (p = priv->listeners; p != NULL; p = p->next) {
        GNOME_Evolution_StorageSetViewListener listener;

        listener = (GNOME_Evolution_StorageSetViewListener) p->data;
        CORBA_Object_release (listener, &ev);
    }

    CORBA_exception_free (&ev);

    g_free (priv);

    (* G_OBJECT_CLASS (parent_class)->finalize) (object);
}


static void
class_init (EvolutionStorageSetViewClass *klass)
{
    POA_GNOME_Evolution_StorageSetView__epv *epv;
    GObjectClass *object_class;

    object_class = G_OBJECT_CLASS (klass);
    object_class->dispose  = impl_dispose;
    object_class->finalize = impl_finalize;

    epv = & (klass->epv);
    epv->addListener         = impl_StorageSetView_add_listener;
    epv->removeListener      = impl_StorageSetView_remove_listener;
    epv->_set_showFolders    = impl_StorageSetView__set_showFolders;
    epv->_get_showFolders    = impl_StorageSetView__get_showFolders;
    epv->_set_showCheckboxes = impl_StorageSetView__set_showCheckboxes;
    epv->_get_showCheckboxes = impl_StorageSetView__get_showCheckboxes;
    epv->_set_checkedFolders = impl_StorageSetView__set_checkedFolders;
    epv->_get_checkedFolders = impl_StorageSetView__get_checkedFolders;

    parent_class = g_type_class_ref(PARENT_TYPE);
}

static void
init (EvolutionStorageSetView *storage_set_view)
{
    EvolutionStorageSetViewPrivate *priv;

    priv = g_new (EvolutionStorageSetViewPrivate, 1);
    priv->storage_set_view_widget = NULL;
    priv->listeners               = NULL;

    storage_set_view->priv = priv;
}


void
evolution_storage_set_view_construct (EvolutionStorageSetView *storage_set_view,
                      EStorageSetView *storage_set_view_widget)
{
    EvolutionStorageSetViewPrivate *priv;

    g_return_if_fail (EVOLUTION_IS_STORAGE_SET_VIEW (storage_set_view));
    g_return_if_fail (E_IS_STORAGE_SET_VIEW (storage_set_view_widget));

    priv = storage_set_view->priv;

    g_assert (priv->storage_set_view_widget == NULL);
    priv->storage_set_view_widget = GTK_WIDGET (storage_set_view_widget);

    g_signal_connect (priv->storage_set_view_widget, "folder_selected",
              G_CALLBACK (storage_set_view_widget_folder_selected_cb), storage_set_view);
    g_signal_connect (priv->storage_set_view_widget, "checkboxes_changed",
              G_CALLBACK (storage_set_view_widget_folder_toggled_cb), storage_set_view);
}

EvolutionStorageSetView *
evolution_storage_set_view_new (EStorageSetView *storage_set_view_widget)
{
    EvolutionStorageSetView *new;

    g_return_val_if_fail (storage_set_view_widget != NULL, NULL);
    g_return_val_if_fail (E_IS_STORAGE_SET_VIEW (storage_set_view_widget), NULL);

    new = g_object_new (evolution_storage_set_view_get_type (), NULL);

    evolution_storage_set_view_construct (new, storage_set_view_widget);

    return new;
}


E_MAKE_X_TYPE (evolution_storage_set_view, "EvolutionStorageSetView", EvolutionStorageSetView,
           class_init, init, PARENT_TYPE,
           POA_GNOME_Evolution_StorageSetView__init,
           G_STRUCT_OFFSET (EvolutionStorageSetViewClass, epv))