path: root/shell/evolution-shell-component.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* evolution-shell-component.c
 *
 * Copyright (C) 2000  Helix Code, Inc.
 *
 * 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.
 *
 * Author: Ettore Perazzoli
 */

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

#include <bonobo.h>

#include "Evolution.h"

#include "e-util/e-util.h"

#include "evolution-shell-component.h"


#define PARENT_TYPE BONOBO_OBJECT_TYPE
static BonoboObjectClass *parent_class = NULL;

struct _EvolutionShellComponentPrivate {
    GList *folder_types;    /* EvolutionShellComponentFolderType */

    EvolutionShellComponentCreateViewFn   create_view_fn;
    EvolutionShellComponentCreateFolderFn create_folder_fn;
    EvolutionShellComponentRemoveFolderFn remove_folder_fn;

    Evolution_Shell corba_owner;
    void *closure;
};

enum {
    OWNER_SET,
    OWNER_UNSET,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0 };


/* CORBA interface implementation.  */

static POA_Evolution_ShellComponent__vepv ShellComponent_vepv;

static POA_Evolution_ShellComponent *
create_servant (void)
{
    POA_Evolution_ShellComponent *servant;
    CORBA_Environment ev;

    servant = (POA_Evolution_ShellComponent *) g_new0 (BonoboObjectServant, 1);
    servant->vepv = &ShellComponent_vepv;

    CORBA_exception_init (&ev);

    POA_Evolution_ShellComponent__init ((PortableServer_Servant) servant, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_free (servant);
        CORBA_exception_free (&ev);
        return NULL;
    }

    CORBA_exception_free (&ev);

    return servant;
}

static Evolution_FolderTypeList *
impl_ShellComponent__get_supported_types (PortableServer_Servant servant,
                      CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionShellComponent *shell_component;
    EvolutionShellComponentPrivate *priv;
    Evolution_FolderTypeList *folder_type_list;
    unsigned int i;
    GList *p;

    bonobo_object = bonobo_object_from_servant (servant);
    shell_component = EVOLUTION_SHELL_COMPONENT (bonobo_object);
    priv = shell_component->priv;

    folder_type_list = Evolution_FolderTypeList__alloc ();
    folder_type_list->_length = g_list_length (priv->folder_types);
    folder_type_list->_maximum = folder_type_list->_length;
    folder_type_list->_buffer = CORBA_sequence_Evolution_FolderType_allocbuf (folder_type_list->_maximum);

    for (p = priv->folder_types, i = 0; p != NULL; p = p->next, i++) {
        Evolution_FolderType *corba_folder_type;
        EvolutionShellComponentFolderType *folder_type;

        folder_type = (EvolutionShellComponentFolderType *) p->data;

        corba_folder_type = folder_type_list->_buffer + i;
        corba_folder_type->name      = CORBA_string_dup (folder_type->name);
        corba_folder_type->icon_name = CORBA_string_dup (folder_type->icon_name);
    }

    return folder_type_list;
}

static void
impl_ShellComponent_set_owner (PortableServer_Servant servant,
                   const Evolution_Shell shell,
                   CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionShellComponent *shell_component;
    EvolutionShellComponentPrivate *priv;

    bonobo_object = bonobo_object_from_servant (servant);
    shell_component = EVOLUTION_SHELL_COMPONENT (bonobo_object);
    priv = shell_component->priv;

    if (priv->corba_owner != CORBA_OBJECT_NIL) {
        CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
                     ex_Evolution_ShellComponent_AlreadyOwned, NULL);
        return;
    }

    priv->corba_owner = CORBA_Object_duplicate (shell, ev);

    gtk_signal_emit (GTK_OBJECT (shell_component), signals[OWNER_SET], priv->corba_owner);
}

static void
impl_ShellComponent_unset_owner (PortableServer_Servant servant,
                 CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionShellComponent *shell_component;
    EvolutionShellComponentPrivate *priv;

    bonobo_object = bonobo_object_from_servant (servant);
    shell_component = EVOLUTION_SHELL_COMPONENT (bonobo_object);
    priv = shell_component->priv;

    if (priv->corba_owner == CORBA_OBJECT_NIL) {
        CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
                     ex_Evolution_ShellComponent_NotOwned, NULL);
        return;
    }

    Bonobo_Unknown_unref (priv->corba_owner, ev);
    CORBA_Object_release (priv->corba_owner, ev);

    gtk_signal_emit (GTK_OBJECT (shell_component), signals[OWNER_UNSET]);
}

static Bonobo_Control
impl_ShellComponent_create_view (PortableServer_Servant servant,
                 const CORBA_char *physical_uri,
                 const CORBA_char *type,
                 CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionShellComponent *shell_component;
    EvolutionShellComponentPrivate *priv;
    EvolutionShellComponentResult result;
    BonoboControl *control;

    bonobo_object = bonobo_object_from_servant (servant);
    shell_component = EVOLUTION_SHELL_COMPONENT (bonobo_object);
    priv = shell_component->priv;

    result = (* priv->create_view_fn) (shell_component, physical_uri, type,
                       &control, priv->closure);

    if (result != EVOLUTION_SHELL_COMPONENT_OK) {
        switch (result) {
        case EVOLUTION_SHELL_COMPONENT_UNSUPPORTEDTYPE:
            CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
                         ex_Evolution_ShellComponent_UnsupportedType,
                         NULL);
            break;
        case EVOLUTION_SHELL_COMPONENT_INTERNALERROR:
            CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
                         ex_Evolution_ShellComponent_InternalError,
                         NULL);
            break;
        default:
            CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
                         ex_Evolution_ShellComponent_NotFound,
                         NULL);
        }

        return CORBA_OBJECT_NIL;
    }

    return bonobo_object_corba_objref (BONOBO_OBJECT (control));
}

static void
impl_ShellComponent_async_create_folder (PortableServer_Servant servant,
                     const Evolution_ShellComponentListener listener,
                     const CORBA_char *physical_uri,
                     const CORBA_char *type,
                     CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionShellComponent *shell_component;
    EvolutionShellComponentPrivate *priv;

    bonobo_object = bonobo_object_from_servant (servant);
    shell_component = EVOLUTION_SHELL_COMPONENT (bonobo_object);
    priv = shell_component->priv;

    if (priv->create_folder_fn == NULL) {
        Evolution_ShellComponentListener_report_result (listener,
                                Evolution_ShellComponentListener_UNSUPPORTED_OPERATION,
                                ev);
        return;
    }

    (* priv->create_folder_fn) (shell_component, physical_uri, type, listener, priv->closure);
}

static void
impl_ShellComponent_async_remove_folder (PortableServer_Servant servant,
                     const Evolution_ShellComponentListener listener,
                     const CORBA_char *physical_uri,
                     CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionShellComponent *shell_component;
    EvolutionShellComponentPrivate *priv;

    bonobo_object = bonobo_object_from_servant (servant);
    shell_component = EVOLUTION_SHELL_COMPONENT (bonobo_object);
    priv = shell_component->priv;

    if (priv->remove_folder_fn == NULL) {
        Evolution_ShellComponentListener_report_result (listener,
                                Evolution_ShellComponentListener_UNSUPPORTED_OPERATION,
                                ev);
        return;
    }

    (* priv->remove_folder_fn) (shell_component, physical_uri, listener, priv->closure);
}


/* GtkObject methods.  */

static void
destroy (GtkObject *object)
{
    EvolutionShellComponent *shell_component;
    EvolutionShellComponentPrivate *priv;
    CORBA_Environment ev;
    GList *p;

    shell_component = EVOLUTION_SHELL_COMPONENT (object);

    priv = shell_component->priv;

    CORBA_exception_init (&ev);

    if (priv->corba_owner != NULL) {
        Bonobo_Unknown_unref (priv->corba_owner, &ev);
        CORBA_Object_release (priv->corba_owner, &ev);
    }

    CORBA_exception_free (&ev);

    for (p = priv->folder_types; p != NULL; p = p->next) {
        EvolutionShellComponentFolderType *folder_type;

        folder_type = (EvolutionShellComponentFolderType *) p->data;

        g_free (folder_type->name);
        g_free (folder_type->icon_name);
        g_free (folder_type);
    }
    g_list_free (priv->folder_types);

    g_free (priv);
}


/* Initialization.  */

static void
corba_class_init (void)
{
    POA_Evolution_ShellComponent__vepv *vepv;
    POA_Evolution_ShellComponent__epv *epv;
    PortableServer_ServantBase__epv *base_epv;

    base_epv = g_new0 (PortableServer_ServantBase__epv, 1);
    base_epv->_private    = NULL;
    base_epv->finalize    = NULL;
    base_epv->default_POA = NULL;

    epv = g_new0 (POA_Evolution_ShellComponent__epv, 1);
    epv->_get_supported_types = impl_ShellComponent__get_supported_types;
    epv->set_owner            = impl_ShellComponent_set_owner;
    epv->unset_owner          = impl_ShellComponent_unset_owner;
    epv->create_view          = impl_ShellComponent_create_view;
    epv->async_create_folder  = impl_ShellComponent_async_create_folder;
    epv->async_remove_folder  = impl_ShellComponent_async_remove_folder;

    vepv = &ShellComponent_vepv;
    vepv->_base_epv                    = base_epv;
    vepv->Bonobo_Unknown_epv           = bonobo_object_get_epv ();
    vepv->Evolution_ShellComponent_epv = epv;
}

static void
class_init (EvolutionShellComponentClass *klass)
{
    GtkObjectClass *object_class;

    object_class = GTK_OBJECT_CLASS (klass);
    object_class->destroy = destroy;

    signals[OWNER_SET]
        = gtk_signal_new ("owner_set",
                  GTK_RUN_FIRST,
                  object_class->type,
                  GTK_SIGNAL_OFFSET (EvolutionShellComponentClass, owner_set),
                  gtk_marshal_NONE__POINTER,
                  GTK_TYPE_NONE, 1,
                  GTK_TYPE_POINTER);

    signals[OWNER_UNSET]
        = gtk_signal_new ("owner_unset",
                  GTK_RUN_FIRST,
                  object_class->type,
                  GTK_SIGNAL_OFFSET (EvolutionShellComponentClass, owner_unset),
                  gtk_marshal_NONE__NONE,
                  GTK_TYPE_NONE, 0);

    gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);

    parent_class = gtk_type_class (PARENT_TYPE);

    corba_class_init ();
}

static void
init (EvolutionShellComponent *shell_component)
{
    EvolutionShellComponentPrivate *priv;

    priv = g_new (EvolutionShellComponentPrivate, 1);

    priv->folder_types     = NULL;
    priv->create_view_fn   = NULL;
    priv->create_folder_fn = NULL;
    priv->remove_folder_fn = NULL;
    priv->corba_owner      = CORBA_OBJECT_NIL;
    priv->closure          = NULL;

    shell_component->priv = priv;
}


void
evolution_shell_component_construct (EvolutionShellComponent *shell_component,
                     const EvolutionShellComponentFolderType folder_types[],
                     Evolution_ShellComponent corba_object,
                     EvolutionShellComponentCreateViewFn create_view_fn,
                     EvolutionShellComponentCreateFolderFn create_folder_fn,
                     EvolutionShellComponentRemoveFolderFn remove_folder_fn,
                     void *closure)
{
    EvolutionShellComponentPrivate *priv;
    int i;

    g_return_if_fail (shell_component != NULL);
    g_return_if_fail (corba_object != CORBA_OBJECT_NIL);

    bonobo_object_construct (BONOBO_OBJECT (shell_component), corba_object);

    priv = shell_component->priv;

    priv->create_view_fn   = create_view_fn;
    priv->create_folder_fn = create_folder_fn;
    priv->remove_folder_fn = remove_folder_fn;

    priv->closure = closure;

    for (i = 0; folder_types[i].name != NULL; i++) {
        EvolutionShellComponentFolderType *new;

        if (folder_types[i].icon_name == NULL
            || folder_types[i].name[0] == '\0'
            || folder_types[i].icon_name[0] == '\0')
            continue;

        new = g_new (EvolutionShellComponentFolderType, 1);
        new->name      = g_strdup (folder_types[i].name);
        new->icon_name = g_strdup (folder_types[i].icon_name);

        priv->folder_types = g_list_prepend (priv->folder_types, new);
    }

    if (priv->folder_types == NULL)
        g_warning ("No valid folder types constructing EShellComponent %p", shell_component);
}

EvolutionShellComponent *
evolution_shell_component_new (const EvolutionShellComponentFolderType folder_types[],
                   EvolutionShellComponentCreateViewFn create_view_fn,
                   EvolutionShellComponentCreateFolderFn create_folder_fn,
                   EvolutionShellComponentRemoveFolderFn remove_folder_fn,
                   void *closure)
{
    EvolutionShellComponent *new;
    POA_Evolution_ShellComponent *servant;
    Evolution_ShellComponent corba_object;

    servant = create_servant ();
    if (servant == NULL)
        return NULL;

    new = gtk_type_new (evolution_shell_component_get_type ());

    corba_object = bonobo_object_activate_servant (BONOBO_OBJECT (new), servant);
    evolution_shell_component_construct (new, folder_types, corba_object,
                         create_view_fn, create_folder_fn, remove_folder_fn,
                         closure);

    return new;
}

Evolution_Shell
evolution_shell_component_get_owner  (EvolutionShellComponent *shell_component)
{
    g_return_val_if_fail (shell_component != NULL, CORBA_OBJECT_NIL);
    g_return_val_if_fail (EVOLUTION_IS_SHELL_COMPONENT (shell_component), CORBA_OBJECT_NIL);

    return shell_component->priv->corba_owner;
}


E_MAKE_TYPE (evolution_shell_component, "EvolutionShellComponent", EvolutionShellComponent,
         class_init, init, PARENT_TYPE)