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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* executive-summary-component.c - Bonobo implementation of 
 *                                 SummaryComponent.idl
 *
 * Authors: Iain Holmes <iain@helixcode.com>
 *
 * 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.
 */

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

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

#include "Executive-Summary.h"
#include "executive-summary.h"
#include "executive-summary-component.h"
#include "executive-summary-component-view.h"
#include "executive-summary-client.h"

static void executive_summary_component_destroy (GtkObject *object);
static void executive_summary_component_init (ExecutiveSummaryComponent *component);
static void executive_summary_component_class_init (ExecutiveSummaryComponentClass *esc_class);

#define PARENT_TYPE (bonobo_object_get_type ())

static BonoboObjectClass *parent_class;

struct _ExecutiveSummaryComponentPrivate {
    EvolutionServicesCreateViewFn create_view;
    EvolutionServicesConfigureFn configure;
    
    ExecutiveSummaryClient *owner_client;
    
    void *closure;

    GHashTable *id_to_view;
};

/* CORBA interface */
static POA_Evolution_SummaryComponent__vepv SummaryComponent_vepv;

static POA_Evolution_SummaryComponent *
create_servant (void)
{
    POA_Evolution_SummaryComponent *servant;
    CORBA_Environment ev;
    
    servant = (POA_Evolution_SummaryComponent *)g_new0 (BonoboObjectServant, 1);
    servant->vepv = &SummaryComponent_vepv;
    
    CORBA_exception_init (&ev);
    POA_Evolution_SummaryComponent__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;
}

#if 0
static void
impl_Evolution_SummaryComponent_supports (PortableServer_Servant servant,
                      CORBA_boolean *html,
                      CORBA_boolean *bonobo,
                      CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    ExecutiveSummaryComponent *component;
    ExecutiveSummaryComponentPrivate *priv;

    bonobo_object = bonobo_object_from_servant (servant);
    component = EXECUTIVE_SUMMARY_COMPONENT (bonobo_object);
    priv = component->private;

    *html = (priv->create_html_view != NULL);
    *bonobo = (priv->create_bonobo_view != NULL);
}
#endif

static void
impl_Evolution_SummaryComponent_set_owner (PortableServer_Servant servant,
                       Evolution_Summary summary,
                       CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    ExecutiveSummaryComponent *component;
    ExecutiveSummaryComponentPrivate *priv;
    ExecutiveSummaryClient *client;
    Evolution_Summary summary_duplicate;

    bonobo_object = bonobo_object_from_servant (servant);
    component = EXECUTIVE_SUMMARY_COMPONENT (bonobo_object);
    priv = component->private;

    /* Create a summary client */
    client = gtk_type_new (executive_summary_client_get_type ());

    summary_duplicate = CORBA_Object_duplicate (summary, ev);
    executive_summary_client_construct (client, summary_duplicate);

    priv->owner_client = client;
}

static void
impl_Evolution_SummaryComponent_unset_owner (PortableServer_Servant servant,
                         CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    ExecutiveSummaryComponent *component;
    ExecutiveSummaryComponentPrivate *priv;

    bonobo_object = bonobo_object_from_servant (servant);
    component = EXECUTIVE_SUMMARY_COMPONENT (bonobo_object);
    priv = component->private;

    if (priv->owner_client == NULL)
        return;

    bonobo_object_unref (BONOBO_OBJECT (priv->owner_client));
    priv->owner_client = NULL;
}

static CORBA_long
impl_Evolution_SummaryComponent_create_view (PortableServer_Servant servant,
                         Bonobo_Control *control,
                         CORBA_char **html,
                         CORBA_char **title,
                         CORBA_char **icon,
                         CORBA_Environment *ev)
{
    ExecutiveSummaryComponentView *view;
    BonoboObject *bonobo_object;
    ExecutiveSummaryComponent *component;
    ExecutiveSummaryComponentPrivate *priv;
    BonoboObject *initial_control;
    const char *initial_title, *initial_icon, *initial_html;
    int id;
    
    bonobo_object = bonobo_object_from_servant (servant);
    component = EXECUTIVE_SUMMARY_COMPONENT (bonobo_object);
    priv = component->private;
    
    view = gtk_type_new (executive_summary_component_view_get_type ());
    id = executive_summary_component_create_unique_id ();
    executive_summary_component_view_set_id (view, id);

    (* priv->create_view) (component, view, priv->closure);
    
    /* Extract the values */
    initial_title = executive_summary_component_view_get_title (view);
    initial_icon = executive_summary_component_view_get_icon (view);
    initial_html = executive_summary_component_view_get_html (view);
    initial_control = executive_summary_component_view_get_control (view);

    /* Put the view in the hash table so it can be found later */
    g_hash_table_insert (priv->id_to_view, GINT_TO_POINTER (id), view);

    /* Duplicate the values */
    if (initial_control != NULL) {
        *control = bonobo_object_corba_objref (BONOBO_OBJECT (initial_control));
    } else {
        *control = NULL;
    }

    *html = CORBA_string_dup (initial_html ? initial_html:"");
    *title = CORBA_string_dup (initial_title ? initial_title:"");
    *icon = CORBA_string_dup (initial_icon ? initial_icon:"");

    return id;
}

#if 0
static CORBA_char *
impl_Evolution_SummaryComponent_create_html_view (PortableServer_Servant servant,
                          CORBA_char **title,
                          CORBA_char **icon,
                          CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    ExecutiveSummaryComponent *component;
    ExecutiveSummaryComponentPrivate *priv;
    CORBA_char *ret_str;
    char *ret_html;
    char *initial_title, *initial_icon;

    bonobo_object = bonobo_object_from_servant (servant);
    component = EXECUTIVE_SUMMARY_COMPONENT (bonobo_object);
    priv = component->private;

    ret_html = (* priv->create_html_view) (component, &initial_title,
                           &initial_icon,
                           priv->closure);

    *title = CORBA_string_dup (initial_title ? initial_title:"");
    *icon = CORBA_string_dup (initial_icon ? initial_icon:"");
    g_free (initial_title);
    g_free (initial_icon);

    ret_str = CORBA_string_dup (ret_html ? ret_html:"");
    g_free (ret_html);
    return ret_str;
}
#endif  

static void
impl_Evolution_SummaryComponent_destroy_view (PortableServer_Servant servant,
                          CORBA_long id,
                          CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    ExecutiveSummaryComponent *component;
    ExecutiveSummaryComponentPrivate *priv;
    ExecutiveSummaryComponentView *view;

    g_print ("%s\n", __FUNCTION__);
    bonobo_object = bonobo_object_from_servant (servant);
    component = EXECUTIVE_SUMMARY_COMPONENT (bonobo_object);
    priv = component->private;

    view = g_hash_table_lookup (priv->id_to_view, GINT_TO_POINTER (id));
    if (view == NULL) {
        g_warning ("Unknown view: %d. Emit exception", id);
        return;
    }

    /* Destroy the view */
    gtk_object_unref (GTK_OBJECT (view));
}

static void
impl_Evolution_SummaryComponent_configure (PortableServer_Servant servant,
                       CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    ExecutiveSummaryComponent *component;
    ExecutiveSummaryComponentPrivate *priv;
    
    bonobo_object = bonobo_object_from_servant (servant);
    component = EXECUTIVE_SUMMARY_COMPONENT (bonobo_object);
    priv = component->private;
    
    (* priv->configure) (component, priv->closure);
}

static void
executive_summary_component_destroy (GtkObject *object)
{
    ExecutiveSummaryComponent *component;
    ExecutiveSummaryComponentPrivate *priv;
    CORBA_Environment ev;
    
    component = EXECUTIVE_SUMMARY_COMPONENT (object);
    priv = component->private;
    
    if (priv == NULL)
        return;
    
    CORBA_exception_init (&ev);
    
    if (priv->owner_client != NULL) {
        bonobo_object_unref (BONOBO_OBJECT (priv->owner_client));
        priv->owner_client = NULL;
    }

    CORBA_exception_free (&ev);
    
    g_free (priv);
    component->private = NULL;
    
    (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}

/* Init */
static void
corba_class_init (void)
{
    POA_Evolution_SummaryComponent__vepv *vepv;
    POA_Evolution_SummaryComponent__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_SummaryComponent__epv, 1);
    epv->set_owner = impl_Evolution_SummaryComponent_set_owner;
    epv->unset_owner = impl_Evolution_SummaryComponent_unset_owner;
    epv->create_view = impl_Evolution_SummaryComponent_create_view;
    epv->destroy_view = impl_Evolution_SummaryComponent_destroy_view;
    epv->configure = impl_Evolution_SummaryComponent_configure;
    
    vepv = &SummaryComponent_vepv;
    vepv->_base_epv = base_epv;
    vepv->Bonobo_Unknown_epv = bonobo_object_get_epv ();
    vepv->Evolution_SummaryComponent_epv = epv;
}

static void
executive_summary_component_class_init (ExecutiveSummaryComponentClass *klass)
{
    GtkObjectClass *object_class;
    
    object_class = GTK_OBJECT_CLASS (klass);
    object_class->destroy = executive_summary_component_destroy;

    parent_class = gtk_type_class (PARENT_TYPE);
    
    corba_class_init ();
}

static void
executive_summary_component_init (ExecutiveSummaryComponent *component)
{
    ExecutiveSummaryComponentPrivate *priv;
    
    priv = g_new0 (ExecutiveSummaryComponentPrivate, 1);
    
    priv->create_view = NULL;
    priv->configure = NULL;
    
    priv->owner_client = NULL;
    priv->closure = NULL;

    priv->id_to_view = g_hash_table_new (NULL, NULL);
    component->private = priv;
}

static void
executive_summary_component_construct (ExecutiveSummaryComponent *component,
                       Evolution_SummaryComponent corba_object,
                       EvolutionServicesCreateViewFn create_view,
                       EvolutionServicesConfigureFn configure,
                       void *closure)
{
    ExecutiveSummaryComponentPrivate *priv;
    
    g_return_if_fail (component != NULL);
    g_return_if_fail (corba_object != CORBA_OBJECT_NIL);
    
    bonobo_object_construct (BONOBO_OBJECT (component), corba_object);
    
    priv = component->private;
    
    priv->create_view = create_view;
    priv->configure = configure;
    
    priv->closure = closure;
}

BonoboObject *
executive_summary_component_new (EvolutionServicesCreateViewFn create_view,
                 EvolutionServicesConfigureFn configure,
                 void *closure)
{
    ExecutiveSummaryComponent *component;
    POA_Evolution_SummaryComponent *servant;
    Evolution_SummaryComponent corba_object;
    
    servant = create_servant ();
    if (servant == NULL)
        return NULL;
    
    component = gtk_type_new (executive_summary_component_get_type ());
    corba_object = bonobo_object_activate_servant (BONOBO_OBJECT (component),
                               servant);
    
    executive_summary_component_construct (component, corba_object,
                           create_view, configure, closure);
    
    return BONOBO_OBJECT (component);
}

E_MAKE_TYPE (executive_summary_component, "ExecutiveSummaryComponent", 
         ExecutiveSummaryComponent, executive_summary_component_class_init,
         executive_summary_component_init, PARENT_TYPE);

void
executive_summary_component_set_title (ExecutiveSummaryComponent *component,
                       gpointer view)
{
    ExecutiveSummaryComponentPrivate *priv;
    int id;
    const char *title;

    g_return_if_fail (component != NULL);
    g_return_if_fail (IS_EXECUTIVE_SUMMARY_COMPONENT (component));

    priv = component->private;

    if (priv->owner_client == NULL) {
        g_warning ("Component not owned!");
        return;
    }

    id = executive_summary_component_view_get_id (EXECUTIVE_SUMMARY_COMPONENT_VIEW (view));
    title = executive_summary_component_view_get_title (EXECUTIVE_SUMMARY_COMPONENT_VIEW (view));

    executive_summary_client_set_title (priv->owner_client, id, title);
}

void
executive_summary_component_set_icon (ExecutiveSummaryComponent *component,
                      gpointer view)
{
    ExecutiveSummaryComponentPrivate *priv;
    int id;
    const char *icon;

    g_return_if_fail (component != NULL);
    g_return_if_fail (IS_EXECUTIVE_SUMMARY_COMPONENT (component));

    priv = component->private;

    if (priv->owner_client == NULL) {
        g_warning ("Component not owned!");
        return;
    }

    id = executive_summary_component_view_get_id (EXECUTIVE_SUMMARY_COMPONENT_VIEW (view));
    icon = executive_summary_component_view_get_icon (EXECUTIVE_SUMMARY_COMPONENT_VIEW (view));

    executive_summary_client_set_icon (priv->owner_client, id, icon);
}

void
executive_summary_component_flash (ExecutiveSummaryComponent *component,
                   gpointer view)
{
    ExecutiveSummaryComponentPrivate *priv;
    int id;

    g_return_if_fail (component != NULL);
    g_return_if_fail (IS_EXECUTIVE_SUMMARY_COMPONENT (component));

    priv = component->private;

    if (priv->owner_client == NULL) {
        g_warning ("Component not owned!");
        return;
    }

    id = executive_summary_component_view_get_id (EXECUTIVE_SUMMARY_COMPONENT_VIEW (view));

    executive_summary_client_flash (priv->owner_client, id);
}

void
executive_summary_component_update (ExecutiveSummaryComponent *component,
                    gpointer view)
{
    ExecutiveSummaryComponentPrivate *priv;
    int id;
    const char *html;

    g_return_if_fail (component != NULL);
    g_return_if_fail (IS_EXECUTIVE_SUMMARY_COMPONENT (component));

    priv = component->private;

    if (priv->owner_client == NULL) {
        g_warning ("Component not ownded!");
        return;
    }

    id = executive_summary_component_view_get_id (EXECUTIVE_SUMMARY_COMPONENT_VIEW (view));
    html = executive_summary_component_view_get_html (EXECUTIVE_SUMMARY_COMPONENT_VIEW (view));

    executive_summary_client_update (priv->owner_client, id, html);
}

int
executive_summary_component_create_unique_id (void)
{
    static int id = 0;

    id++;
    return id;
}