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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * e-minicard-control.c
 *
 * Authors:
 *    Chris Lahey <clahey@ximian.com>
 *
 * Copyright 1999, 2000, Ximian, Inc.
 */

#include <config.h>

#include <gtk/gtk.h>
#include <bonobo/bonobo-generic-factory.h>
#include <bonobo/bonobo-persist.h>
#include <bonobo/bonobo-persist-stream.h>
#include <bonobo/bonobo-stream-client.h>
#include <gal/util/e-util.h>

#include <addressbook/gui/component/addressbook.h>
#include <addressbook/backend/ebook/e-book.h>
#include <addressbook/backend/ebook/e-book-util.h>
#include <addressbook/backend/ebook/e-card.h>

#include "e-minicard-control.h"
#include "e-minicard-widget.h"
#include "e-card-merging.h"

#define MINICARD_CONTROL_ID         "OAFIID:GNOME_Evolution_Addressbook_MiniCard_Control"
#define MINICARD_CONTROL_FACTORY_ID "OAFIID:GNOME_Evolution_Addressbook_MiniCard_ControlFactory"

typedef struct {
    EMinicardWidget *minicard;
    GList *card_list;
    GtkWidget *label;
} EMinicardControl;

#if 0
enum {
    PROP_RUNNING
} MyArgs;

#define RUNNING_KEY  "Clock::Running"

static void
get_prop (BonoboPropertyBag *bag,
      BonoboArg         *arg,
      guint              arg_id,
      CORBA_Environment *ev,
      gpointer           user_data)
{
    GObject *clock = user_data;

    switch (arg_id) {

    case PROP_RUNNING:
    {
        gboolean b = GPOINTER_TO_UINT (g_object_get_data (clock, RUNNING_KEY));
        BONOBO_ARG_SET_BOOLEAN (arg, b);
        break;
    }

    default:
        g_warning ("Unhandled arg %d", arg_id);
        break;
    }
}

static void
set_prop (BonoboPropertyBag *bag,
      const BonoboArg   *arg,
      guint              arg_id,
      CORBA_Environment *ev,
      gpointer           user_data)
{
    GtkClock *clock = user_data;

    switch (arg_id) {

    case PROP_RUNNING:
    {
        guint i;

        i = BONOBO_ARG_GET_BOOLEAN (arg);

        if (i)
            gtk_clock_start (clock);
        else
            gtk_clock_stop (clock);

        g_object_set_data (clock, RUNNING_KEY,
                   GUINT_TO_POINTER (i));
        break;
    }

    default:
        g_warning ("Unhandled arg %d", arg_id);
        break;
    }
}
#endif

/*
 * Bonobo::PersistStream
 *
 * These two functions implement the Bonobo::PersistStream load and
 * save methods which allow data to be loaded into and out of the
 * BonoboObject.
 */
static char *
stream_read (Bonobo_Stream stream)
{
    Bonobo_Stream_iobuf *buffer;
    CORBA_Environment    ev;
    char *data = NULL;
    gint length = 0;

    CORBA_exception_init (&ev);
    do {
#define READ_CHUNK_SIZE 65536
        Bonobo_Stream_read (stream, READ_CHUNK_SIZE,
                    &buffer, &ev);

        if (ev._major != CORBA_NO_EXCEPTION) {
            CORBA_exception_free (&ev);
            return NULL;
        }

        if (buffer->_length <= 0)
            break;

        data = g_realloc (data, length + buffer->_length + 1);

        memcpy (data + length, buffer->_buffer, buffer->_length);

        length += buffer->_length;

        CORBA_free (buffer);
    } while (1);

    CORBA_free (buffer);
    CORBA_exception_free (&ev);

    if (data)
        data[length] = '\0';
    else
        data = g_strdup("");

    return data;
} /* stream_read */

/*
 * This function implements the Bonobo::PersistStream:load method.
 */
static void
pstream_load (BonoboPersistStream *ps, const Bonobo_Stream stream,
          Bonobo_Persist_ContentType type, void *data,
          CORBA_Environment *ev)
{
    GList *list;
    char *vcard;
    EMinicardControl *minicard_control = data;

    if (type && g_strcasecmp (type, "text/vCard") != 0 &&       
        g_strcasecmp (type, "text/x-vCard") != 0) {     
        CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
                     ex_Bonobo_Persist_WrongDataType, NULL);
        return;
    }

    if ((vcard = stream_read (stream)) == NULL) {
        CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
                     ex_Bonobo_Persist_FileNotFound, NULL);
        return;
    }

    e_free_object_list (minicard_control->card_list);
    list = e_card_load_cards_from_string_with_default_charset(vcard, "ISO-8859-1");
    g_free(vcard);
    minicard_control->card_list = list;
    if (list)
        g_object_set(minicard_control->minicard,
                 "card", list->data,
                 NULL);
    if (list && list->next) {
        char *message;
        int length = g_list_length (list) - 1;
        if (length > 1) {
            message = g_strdup_printf (_("and %d other cards."), length);
        } else {
            message = g_strdup_printf (_("and one other card."));
        }
        gtk_label_set_text (GTK_LABEL (minicard_control->label), message);
        g_free (message);
        gtk_widget_show (minicard_control->label);
    } else {
        gtk_widget_hide (minicard_control->label);
    }
} /* pstream_load */

/*
 * This function implements the Bonobo::PersistStream:save method.
 */
static void
pstream_save (BonoboPersistStream *ps, const Bonobo_Stream stream,
          Bonobo_Persist_ContentType type, void *data,
          CORBA_Environment *ev)
{
    EMinicardControl *minicard_control = data;
    char             *vcard;
    int               length;

    if (type && g_strcasecmp (type, "text/vCard") != 0 &&       
        g_strcasecmp (type, "text/x-vCard") != 0) {     
        CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
                     ex_Bonobo_Persist_WrongDataType, NULL);
        return;
    }

    vcard = e_card_list_get_vcard(minicard_control->card_list);
    length = strlen (vcard);
    bonobo_stream_client_write (stream, vcard, length, ev);
    g_free (vcard);
} /* pstream_save */

static Bonobo_Persist_ContentTypeList *
pstream_get_content_types (BonoboPersistStream *ps, void *closure,
               CORBA_Environment *ev)
{
    return bonobo_persist_generate_content_types (2, "text/vCard", "text/x-vCard");
}

static void
book_open_cb (EBook *book, EBookStatus status, gpointer closure)
{
    GList *list = closure;
    if (book) {
        GList *p;
        for (p = list; p; p = p->next) {
            e_card_merging_book_add_card(book, p->data, NULL, NULL);
        }
        g_object_unref (book);
    }
    e_free_object_list (list);
}

static void
save_in_addressbook(GtkWidget *button, gpointer data)
{
    EMinicardControl *minicard_control = data;
    GList *list, *p;
    EBook *book;

    book = e_book_new ();

    list = g_list_copy (minicard_control->card_list);

    for (p = list; p; p = p->next)
        g_object_ref (p->data);

    if (!addressbook_load_default_book (book, book_open_cb, list)) {
        g_object_unref (book);
        book_open_cb (NULL, E_BOOK_STATUS_OTHER_ERROR, list);
    }
}

static void
free_struct (gpointer data, GObject *where_object_was)
{
    EMinicardControl *minicard_control = data;
    e_free_object_list (minicard_control->card_list);
    g_free (minicard_control);
}

static BonoboObject *
e_minicard_control_factory (BonoboGenericFactory *Factory,
                const char           *component_id,
                void *closure)
{
#if 0
    BonoboPropertyBag  *pb;
#endif
    BonoboControl       *control;
    BonoboPersistStream *stream;
    GtkWidget       *minicard;
    GtkWidget           *button;
    GtkWidget           *label;
    GtkWidget           *vbox;

    EMinicardControl    *minicard_control = g_new (EMinicardControl, 1);


    minicard_control->card_list = NULL;
    minicard_control->minicard = NULL;
    minicard_control->label = NULL;

    /* Create the control. */

    minicard = e_minicard_widget_new ();
    gtk_widget_show (minicard);
    minicard_control->minicard = E_MINICARD_WIDGET (minicard);

    /* This is intentionally not shown. */
    label = gtk_label_new ("");
    minicard_control->label = label;

    button = gtk_button_new_with_label(_("Save in addressbook"));
    g_signal_connect (button, "clicked",
              G_CALLBACK (save_in_addressbook), minicard_control);
    gtk_widget_show (button);

    vbox = gtk_vbox_new(FALSE, 0);
    gtk_box_pack_start(GTK_BOX(vbox), minicard, TRUE, TRUE, 0);
    gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
    gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, FALSE, 0);
    gtk_widget_show (vbox);

    control = bonobo_control_new (vbox);

    g_object_weak_ref (G_OBJECT (control), free_struct, minicard_control);

    stream = bonobo_persist_stream_new (pstream_load, pstream_save,
                        pstream_get_content_types,
                        MINICARD_CONTROL_ID,
                        minicard_control);

#if 0
    /* Create the properties. */
    pb = bonobo_property_bag_new (get_prop, set_prop, clock);
    bonobo_control_set_properties (control, pb);

    bonobo_property_bag_add (pb, "running", PROP_RUNNING,
                 BONOBO_ARG_BOOLEAN, NULL,
                 "Whether or not the clock is running", 0);
#endif

    if (stream == NULL) {
        bonobo_object_unref (BONOBO_OBJECT (control));
        return NULL;
    }

    bonobo_object_add_interface (BONOBO_OBJECT (control),
                    BONOBO_OBJECT (stream));

    return BONOBO_OBJECT (control);
}

void
e_minicard_control_factory_init (void)
{
    static BonoboGenericFactory *factory = NULL;

    if (factory != NULL)
        return;

    factory =
        bonobo_generic_factory_new (
            MINICARD_CONTROL_FACTORY_ID,
            e_minicard_control_factory, NULL);

    if (factory == NULL)
        g_error ("I could not register a EMinicard control factory.");
}