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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/*
 * e-address-widget.c
 *
 * Copyright (C) 2001 Ximian, Inc.
 *
 * Developed by Jon Trowbridge <trow@ximian.com>
 */

/*
 * 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.
 */

#include <config.h>
#include <ctype.h>
#include <bonobo/bonobo-control.h>
#include <bonobo/bonobo-property-bag.h>
#include <bonobo/bonobo-generic-factory.h>
#include <addressbook/gui/contact-editor/e-contact-quick-add.h>
#include "e-address-widget.h"

static void e_address_widget_class_init (EAddressWidgetClass *klass);
static void e_address_widget_init       (EAddressWidget *obj);
static void e_address_widget_destroy    (GtkObject *obj);

static gint e_address_widget_button_press_handler (GtkWidget *w, GdkEventButton *ev);
static void e_address_widget_popup (EAddressWidget *, GdkEventButton *ev);
static void e_address_widget_schedule_query (EAddressWidget *);

static GtkObjectClass *parent_class;

static EBook *common_book = NULL; /* sort of lame */

static gboolean doing_queries = FALSE;

static void
e_address_widget_class_init (EAddressWidgetClass *klass)
{
    GtkObjectClass *object_class = (GtkObjectClass *) klass;
    GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);

    parent_class = GTK_OBJECT_CLASS (gtk_type_class (gtk_event_box_get_type ()));

    object_class->destroy = e_address_widget_destroy;

    widget_class->button_press_event = e_address_widget_button_press_handler;
}

static void
e_address_widget_init (EAddressWidget *addr)
{

}

static void
e_address_widget_destroy (GtkObject *obj)
{
    EAddressWidget *addr = E_ADDRESS_WIDGET (obj);

    g_free (addr->name);
    g_free (addr->email);

    if (addr->query_tag)
        e_book_simple_query_cancel (common_book, addr->query_tag);

    if (addr->query_idle_tag)
        gtk_idle_remove (addr->query_idle_tag);
}

static gint
e_address_widget_button_press_handler (GtkWidget *w, GdkEventButton *ev)
{
    EAddressWidget *addr = E_ADDRESS_WIDGET (w);
    if (ev->button == 3 && ev->state == 0) {
        e_address_widget_popup (addr, ev);
        return TRUE;
    }

    return FALSE;
}

GtkType
e_address_widget_get_type (void)
{
    static GtkType aw_type = 0;

    if (!aw_type) {
        GtkTypeInfo aw_info = {
            "EAddressWidget",
            sizeof (EAddressWidget),
            sizeof (EAddressWidgetClass),
            (GtkClassInitFunc) e_address_widget_class_init,
            (GtkObjectInitFunc) e_address_widget_init,
            NULL, NULL, /* reserved... but for what sinister purpose? */
            (GtkClassInitFunc) NULL
        };

        aw_type = gtk_type_unique (gtk_event_box_get_type (), &aw_info);
    }

    return aw_type;
}

static void
gtk_widget_visible (GtkWidget *w, gboolean x)
{
    if (x)
        gtk_widget_show (w);
    else
        gtk_widget_hide (w);
}

static void
e_address_widget_refresh (EAddressWidget *addr)
{
    gchar *str;
    gboolean have_name, have_email;

    g_return_if_fail (addr && E_IS_ADDRESS_WIDGET (addr));

    have_name = addr->name && *addr->name;
    have_email = addr->email && *addr->email && (addr->card == NULL || !addr->known_email);

    gtk_label_set_text (GTK_LABEL (addr->name_widget), have_name ? addr->name : "");
    gtk_widget_visible (addr->name_widget, have_name);
    if (addr->card) {
        gint i, N = strlen (addr->name);
        gchar *pattern = g_malloc (N+1);
        for (i=0; i<N; ++i)
            pattern[i] = '_';
        pattern[i] = '\0';
        gtk_label_set_pattern (GTK_LABEL (addr->name_widget), pattern);
        g_free (pattern);
    } else {
        gtk_label_set_pattern (GTK_LABEL (addr->name_widget), "");
    }

    if (have_email) {
        str = g_strdup_printf (have_name ? "<%s>" : "%s", addr->email);
        gtk_label_set_text (GTK_LABEL (addr->email_widget), str);
        g_free (str);
    } else {
        gtk_label_set_text (GTK_LABEL (addr->email_widget), "");
    }
    gtk_widget_visible (addr->email_widget, have_email);

    gtk_widget_visible (addr->spacer, have_name && have_email);

    /* Launch a query to find the appropriate card, if necessary. */
    if (addr->card == NULL) 
        e_address_widget_schedule_query (addr);
}

void
e_address_widget_set_name (EAddressWidget *addr, const gchar *name)
{
    g_return_if_fail (addr && E_IS_ADDRESS_WIDGET (addr));

    g_free (addr->name);
    addr->name = g_strdup (name);

    e_address_widget_refresh (addr);
}

void
e_address_widget_set_email (EAddressWidget *addr, const gchar *email)
{
    g_return_if_fail (addr && E_IS_ADDRESS_WIDGET (addr));

    g_free (addr->email);
    addr->email = g_strdup (email);

    e_address_widget_refresh (addr);
}


void
e_address_widget_set_text (EAddressWidget *addr, const gchar *text)
{
    g_return_if_fail (addr && E_IS_ADDRESS_WIDGET (addr));
    
    e_address_widget_set_email (addr, text); /* CRAP */
}

void
e_address_widget_construct (EAddressWidget *addr)
{
    GtkWidget *box;

    g_return_if_fail (addr && E_IS_ADDRESS_WIDGET (addr));

    box = gtk_hbox_new (FALSE, 2);
    
    addr->name_widget = gtk_label_new ("");
    addr->spacer = gtk_label_new (" ");
    addr->email_widget = gtk_label_new ("");
    
    gtk_box_pack_start (GTK_BOX (box), addr->name_widget, FALSE, FALSE, 0);
    gtk_box_pack_start (GTK_BOX (box), addr->spacer, FALSE, FALSE, 0);
    gtk_box_pack_start (GTK_BOX (box), addr->email_widget, FALSE, FALSE, 0);

    gtk_container_add (GTK_CONTAINER (addr), box);

    gtk_widget_show (box);
    gtk_widget_show (addr->name_widget);
    gtk_widget_show (addr->email_widget);
}

GtkWidget *
e_address_widget_new (void)
{
    EAddressWidget *addr = gtk_type_new (e_address_widget_get_type ());
    e_address_widget_construct (addr);
    return GTK_WIDGET (addr);
}

/*
 *
 * Cardification
 *
 */

static void
e_address_widget_cardify (EAddressWidget *addr, ECard *card, gboolean known_email)
{
    if (addr->card != card || addr->known_email != known_email) {

        if (addr->card != card) {
            if (addr->card)
                gtk_object_unref (GTK_OBJECT (addr->card));
            addr->card = card;
            gtk_object_ref (GTK_OBJECT (addr->card));
        }

        addr->known_email = known_email;

        if (!(addr->name && *addr->name)) {
            gchar *s = e_card_name_to_string (card->name);
            e_address_widget_set_name (addr, s);
            g_free (s);
        }

        e_address_widget_refresh (addr);
    }
}

static void
query_results_cb (EBook *book, EBookSimpleQueryStatus status, const GList *cards, gpointer user_data)
{
    EAddressWidget *addr = user_data;

    if (g_list_length ((GList *) cards) == 1) {
        ECard *card = E_CARD (cards->data);
        e_address_widget_cardify (addr, card, TRUE);
    }

    addr->query_tag = 0;
}

static void
e_address_widget_do_query (EAddressWidget *addr)
{
    e_book_name_and_email_query (common_book, addr->name, addr->email, query_results_cb, addr);
}

static void
book_ready_cb (EBook *book, EBookStatus status, gpointer user_data)
{
    EAddressWidget *addr = E_ADDRESS_WIDGET (user_data);

    if (common_book == NULL) {
        common_book = book;
        gtk_object_ref (GTK_OBJECT (common_book));
    } else
        gtk_object_unref (GTK_OBJECT (book));

    e_address_widget_do_query (addr);
}

static gint
query_idle_fn (gpointer ptr)
{
    EAddressWidget *addr = E_ADDRESS_WIDGET (ptr);

    if (common_book) {
        e_address_widget_do_query (addr);
    } else {
        e_book_load_local_address_book (e_book_new (), book_ready_cb, addr);
    }

    addr->query_idle_tag = 0;
    return FALSE;
}

static void
e_address_widget_schedule_query (EAddressWidget *addr)
{
    if (addr->query_idle_tag || !doing_queries)
        return;
    addr->query_idle_tag = gtk_idle_add (query_idle_fn, addr);
}

/*
 *
 * Popup Menu
 *
 */

#define ARBITRARY_UIINFO_LIMIT 64

static gint
popup_add_name_and_address (EAddressWidget *addr, GnomeUIInfo *uiinfo, gint i)
{
    gboolean flag = FALSE;

    if (addr->name && *addr->name) {
        uiinfo[i].type = GNOME_APP_UI_ITEM;
        uiinfo[i].label = addr->name;
        ++i;
        flag = TRUE;
    }

    if (addr->email && *addr->email) {
        uiinfo[i].type = GNOME_APP_UI_ITEM;
        uiinfo[i].label = addr->email;
        ++i;
        flag = TRUE;
    }

    if (flag) {
        uiinfo[i].type = GNOME_APP_UI_SEPARATOR;
        ++i;
    }
    
    return i;
}

static void
flip_queries_flag_cb (GtkWidget *w, gpointer user_data)
{
    doing_queries = !doing_queries;
}

static gint
popup_add_query_change (EAddressWidget *addr, GnomeUIInfo *uiinfo, gint i)
{
    uiinfo[i].type = GNOME_APP_UI_SEPARATOR;
    ++i;

    uiinfo[i].type = GNOME_APP_UI_ITEM;
    uiinfo[i].label = doing_queries ? _("Disable Queries") : _("Enable Queries (Dangerous!)");
    uiinfo[i].moreinfo = flip_queries_flag_cb;
    ++i;

    return i;
}


static GtkWidget *
popup_menu_card (EAddressWidget *addr)
{
    GnomeUIInfo uiinfo[ARBITRARY_UIINFO_LIMIT];
    GtkWidget *pop;
    gint i=0;
    ECard *card = E_CARD (addr->card);

    g_return_val_if_fail (card != NULL, NULL);

    memset (uiinfo, 0, sizeof (uiinfo));

    i = popup_add_name_and_address (addr, uiinfo, i);

    uiinfo[i].type = GNOME_APP_UI_ITEM;
    uiinfo[i].label = _("Edit Contact Info");
    ++i;

    i = popup_add_query_change (addr, uiinfo, i);

    uiinfo[i].type = GNOME_APP_UI_ENDOFINFO;
    pop = gnome_popup_menu_new (uiinfo);
    return pop;
}

static void
post_quick_add_cb (ECard *card, gpointer user_data)
{
    e_address_widget_cardify (E_ADDRESS_WIDGET (user_data), card, TRUE);
}

static void
add_contacts_cb (GtkWidget *w, gpointer user_data)
{
    EAddressWidget *addr = E_ADDRESS_WIDGET (user_data);

    e_contact_quick_add (addr->name, addr->email, post_quick_add_cb, addr);
}

static GtkWidget *
popup_menu_nocard (EAddressWidget *addr)
{
    GnomeUIInfo uiinfo[ARBITRARY_UIINFO_LIMIT];
    GtkWidget *pop;
    gint i=0;

    memset (uiinfo, 0, sizeof (uiinfo));

    i = popup_add_name_and_address (addr, uiinfo, i);

    uiinfo[i].type = GNOME_APP_UI_ITEM;
    uiinfo[i].label = _("Add to Contacts");
    uiinfo[i].moreinfo = add_contacts_cb;
    ++i;

    i = popup_add_query_change (addr, uiinfo, i);

    uiinfo[i].type = GNOME_APP_UI_ENDOFINFO;
    pop = gnome_popup_menu_new (uiinfo);
    return pop;
}

static void
e_address_widget_popup (EAddressWidget *addr, GdkEventButton *ev)
{
    GtkWidget *pop;

    g_return_if_fail (addr && E_IS_ADDRESS_WIDGET (addr));

    pop = addr->card ? popup_menu_card (addr) : popup_menu_nocard (addr);

    if (pop)
        gnome_popup_menu_do_popup (pop, NULL, NULL, ev, addr);
}

/*
 *
 * Bonobo Control Magic
 *
 */

enum {
    ADDRESS_PROPERTY_NAME,
    ADDRESS_PROPERTY_EMAIL,
    ADDRESS_PROPERTY_TEXT,
    ADDRESS_PROPERTY_BACKGROUND_RGB
};


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

    switch (arg_id) {

    case ADDRESS_PROPERTY_NAME:
        BONOBO_ARG_SET_STRING (arg, addr->name ? addr->name :"");
        break;

    case ADDRESS_PROPERTY_EMAIL:
        BONOBO_ARG_SET_STRING (arg, addr->email ? addr->email : "");
        break;

    case ADDRESS_PROPERTY_TEXT:
        BONOBO_ARG_SET_STRING (arg, "?");
        break;
    }
}

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

    switch (arg_id) {
    case ADDRESS_PROPERTY_NAME:
        e_address_widget_set_name (addr, BONOBO_ARG_GET_STRING (arg));
        break;

    case ADDRESS_PROPERTY_EMAIL:
        e_address_widget_set_email (addr, BONOBO_ARG_GET_STRING (arg));
        break;

    case ADDRESS_PROPERTY_TEXT:
        e_address_widget_set_text (addr, BONOBO_ARG_GET_STRING (arg));
        break;

        
    case ADDRESS_PROPERTY_BACKGROUND_RGB:
        {
            gint bg = BONOBO_ARG_GET_INT (arg);
            GdkColor color;

            color.red   = (bg & 0xff0000) >> 8;
            color.green = (bg & 0x00ff00);
            color.blue  = (bg & 0x0000ff) << 8;

            if (gdk_colormap_alloc_color (gtk_widget_get_colormap (GTK_WIDGET (addr)), &color, FALSE, TRUE)) {
                GtkStyle *style = gtk_style_copy (gtk_widget_get_style (GTK_WIDGET (addr)));
                style->bg[0] = color;
                gtk_widget_set_style (GTK_WIDGET (addr), style);
            }
        }
        
        break;
    }
}

static BonoboControl *
e_address_widget_factory_new_control (void)
{
    BonoboControl *control;
    BonoboPropertyBag *bag;
    GtkWidget *w;

    w = e_address_widget_new ();
    gtk_widget_show (w);

    control = bonobo_control_new (w);

    bag = bonobo_property_bag_new (get_prop, set_prop, w);
    bonobo_property_bag_add (bag, "name", ADDRESS_PROPERTY_NAME,
                 BONOBO_ARG_STRING, NULL, NULL,
                 BONOBO_PROPERTY_READABLE | BONOBO_PROPERTY_WRITEABLE);

    bonobo_property_bag_add (bag, "email", ADDRESS_PROPERTY_EMAIL,
                 BONOBO_ARG_STRING, NULL, NULL,
                 BONOBO_PROPERTY_READABLE | BONOBO_PROPERTY_WRITEABLE);

    bonobo_property_bag_add (bag, "text", ADDRESS_PROPERTY_TEXT,
                 BONOBO_ARG_STRING, NULL, NULL,
                 BONOBO_PROPERTY_READABLE | BONOBO_PROPERTY_WRITEABLE);

    bonobo_property_bag_add (bag, "background_rgb", ADDRESS_PROPERTY_BACKGROUND_RGB,
                 BONOBO_ARG_INT, NULL, NULL,
                 BONOBO_PROPERTY_WRITEABLE);

    bonobo_control_set_properties (control, bag);
    bonobo_object_unref (BONOBO_OBJECT (bag));

    return control;
}

static BonoboObject *
e_address_widget_factory (BonoboGenericFactory *factory, gpointer user_data)
{
    return BONOBO_OBJECT (e_address_widget_factory_new_control ());
}

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

    if (factory != NULL)
        return;

    factory = bonobo_generic_factory_new ("OAFIID:GNOME_Evolution_Addressbook_AddressWidgetFactory",
                          e_address_widget_factory, NULL);

    if (factory == NULL)
        g_error ("I could not register an AddressWidget factory.");
}