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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* 
 * e-minicard-view.c
 * Copyright (C) 2000  Helix Code, Inc.
 * Author: Chris Lahey <clahey@helixcode.com>
 *
 * This library 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 library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include <config.h>
#include <gnome.h>
#include <e-util/e-canvas.h>
#include "e-minicard-view.h"
#include "e-minicard.h"
#include "e-contact-editor.h"
static void e_minicard_view_init        (EMinicardView       *reflow);
static void e_minicard_view_class_init  (EMinicardViewClass  *klass);
static void e_minicard_view_set_arg (GtkObject *o, GtkArg *arg, guint arg_id);
static void e_minicard_view_get_arg (GtkObject *object, GtkArg *arg, guint arg_id);
static void e_minicard_view_destroy (GtkObject *object);
static gboolean e_minicard_view_event (GnomeCanvasItem *item, GdkEvent *event);
static void canvas_destroy (GtkObject *object, EMinicardView *view);
static void disconnect_signals (EMinicardView *view);

static EReflowSortedClass *parent_class = NULL;

/* The arguments we take */
enum {
    ARG_0,
    ARG_BOOK,
    ARG_QUERY
};

GtkType
e_minicard_view_get_type (void)
{
  static GtkType reflow_type = 0;

  if (!reflow_type)
    {
      static const GtkTypeInfo reflow_info =
      {
        "EMinicardView",
        sizeof (EMinicardView),
        sizeof (EMinicardViewClass),
        (GtkClassInitFunc) e_minicard_view_class_init,
        (GtkObjectInitFunc) e_minicard_view_init,
        /* reserved_1 */ NULL,
        /* reserved_2 */ NULL,
        (GtkClassInitFunc) NULL,
      };

      reflow_type = gtk_type_unique (e_reflow_sorted_get_type (), &reflow_info);
    }

  return reflow_type;
}

static void
e_minicard_view_class_init (EMinicardViewClass *klass)
{
    GtkObjectClass *object_class;
    GnomeCanvasItemClass *item_class;
    
    object_class = (GtkObjectClass*) klass;
    item_class = (GnomeCanvasItemClass *) klass;
    
    parent_class = gtk_type_class (e_reflow_sorted_get_type ());
    
    gtk_object_add_arg_type ("EMinicardView::book", GTK_TYPE_OBJECT, 
                 GTK_ARG_READWRITE, ARG_BOOK);
    gtk_object_add_arg_type ("EMinicardView::query", GTK_TYPE_STRING,
                 GTK_ARG_READWRITE, ARG_QUERY);
    
    object_class->set_arg   = e_minicard_view_set_arg;
    object_class->get_arg   = e_minicard_view_get_arg;
    object_class->destroy   = e_minicard_view_destroy;

    item_class->event       = e_minicard_view_event;
    
    /* GnomeCanvasItem method overrides */
}

static void
e_minicard_view_init (EMinicardView *view)
{
    view->book = NULL;
    view->query = g_strdup("(contains \"x-evolution-any-field\" \"\")");
    view->book_view = NULL;
    view->get_view_idle = 0;
    view->create_card_id = 0;
    view->remove_card_id = 0;
    view->modify_card_id = 0;
    view->canvas_destroy_id = 0;
    
    gtk_object_set(GTK_OBJECT(view),
               "empty_message", _("\n\nThere are no items to show in this view\n\n"
                      "Double-click here to create a new Contact."),
               NULL);

    E_REFLOW_SORTED(view)->compare_func = (GCompareFunc) e_minicard_compare;
    E_REFLOW_SORTED(view)->string_func  = (EReflowStringFunc) e_minicard_get_card_id;
}

static void
create_card(EBookView *book_view, const GList *cards, EMinicardView *view)
{
    for (; cards; cards = g_list_next(cards)) {
        GnomeCanvasItem *item = gnome_canvas_item_new(GNOME_CANVAS_GROUP(view),
                                  e_minicard_get_type(),
                                  "card", cards->data,
                                  NULL);
        e_reflow_add_item(E_REFLOW(view), item);
    }
}

static void
modify_card(EBookView *book_view, const GList *cards, EMinicardView *view)
{
    for (; cards; cards = g_list_next(cards)) {
        ECard *card = cards->data;
        gchar *id = e_card_get_id(card);
        GnomeCanvasItem *item = e_reflow_sorted_get_item(E_REFLOW_SORTED(view), id);
        if (item && !GTK_OBJECT_DESTROYED(item)) {
            gnome_canvas_item_set(item,
                          "card", card,
                          NULL);
            e_reflow_sorted_reorder_item(E_REFLOW_SORTED(view), id);
        }
    }
}

static void
remove_card(EBookView *book_view, const char *id, EMinicardView *view)
{
    e_reflow_sorted_remove_item(E_REFLOW_SORTED(view), id);
}

static void
book_view_loaded (EBook *book, EBookStatus status, EBookView *book_view, gpointer closure)
{
    EMinicardView *view = closure;
    disconnect_signals(view);
    if (view->book_view)
        gtk_object_unref(GTK_OBJECT(view->book_view));

    if (!view->canvas_destroy_id)
        view->canvas_destroy_id = 
            gtk_signal_connect(GTK_OBJECT(GNOME_CANVAS_ITEM(view)->canvas),
                       "destroy", GTK_SIGNAL_FUNC(canvas_destroy),
                       view);

    view->book_view = book_view;
    if (view->book_view)
        gtk_object_ref(GTK_OBJECT(view->book_view));
    

    view->create_card_id = gtk_signal_connect(GTK_OBJECT(view->book_view),
                          "card_added",
                          GTK_SIGNAL_FUNC(create_card),
                          view);
    view->remove_card_id = gtk_signal_connect(GTK_OBJECT(view->book_view),
                          "card_removed",
                          GTK_SIGNAL_FUNC(remove_card),
                          view);
    view->modify_card_id = gtk_signal_connect(GTK_OBJECT(view->book_view),
                          "card_changed",
                          GTK_SIGNAL_FUNC(modify_card),
                          view);

    g_list_foreach(E_REFLOW(view)->items, (GFunc) gtk_object_unref, NULL);
    g_list_foreach(E_REFLOW(view)->items, (GFunc) gtk_object_destroy, NULL);
    g_list_free(E_REFLOW(view)->items);
    E_REFLOW(view)->items = NULL;
    e_canvas_item_request_reflow(GNOME_CANVAS_ITEM(view));
}

static gboolean
get_view(EMinicardView *view)
{
    if (view->book && view->query)
        e_book_get_book_view(view->book, view->query, book_view_loaded, view);

    view->get_view_idle = 0;
    return FALSE;
}

static void
e_minicard_view_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
    GnomeCanvasItem *item;
    EMinicardView *view;

    item = GNOME_CANVAS_ITEM (o);
    view = E_MINICARD_VIEW (o);
    
    switch (arg_id){
    case ARG_BOOK:
        if (view->book)
            gtk_object_unref(GTK_OBJECT(view->book));
        if (GTK_VALUE_OBJECT (*arg)) {
            view->book = E_BOOK(GTK_VALUE_OBJECT (*arg));
            gtk_object_ref(GTK_OBJECT(view->book));
            if (view->get_view_idle == 0)
                view->get_view_idle = g_idle_add((GSourceFunc)get_view, view);
        }
        else
            view->book = NULL;
        break;
    case ARG_QUERY:
        g_free(view->query);
        view->query = g_strdup(GTK_VALUE_STRING (*arg));
        if (view->get_view_idle == 0)
            view->get_view_idle = g_idle_add((GSourceFunc)get_view, view);
        break;
    }
}

static void
e_minicard_view_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
    EMinicardView *e_minicard_view;

    e_minicard_view = E_MINICARD_VIEW (object);

    switch (arg_id) {
    case ARG_BOOK:
        GTK_VALUE_OBJECT (*arg) = GTK_OBJECT(e_minicard_view->book);
        break;
    case ARG_QUERY:
        GTK_VALUE_STRING (*arg) = g_strdup(e_minicard_view->query);
        break;
    default:
        arg->type = GTK_TYPE_INVALID;
        break;
    }
}

static void
e_minicard_view_destroy (GtkObject *object)
{
    EMinicardView *view = E_MINICARD_VIEW(object);

    if (view->get_view_idle)
        g_source_remove(view->get_view_idle);
    if (view->canvas_destroy_id)
        gtk_signal_disconnect(GTK_OBJECT (GNOME_CANVAS_ITEM(view)->canvas),
                      view->canvas_destroy_id);
    disconnect_signals(view);
    g_free(view->query);
    if (view->book)
        gtk_object_unref(GTK_OBJECT(view->book));
    if (view->book_view)
        gtk_object_unref(GTK_OBJECT(view->book_view));
  
    GTK_OBJECT_CLASS(parent_class)->destroy (object);
}

static void
card_added_cb (EBook* book, EBookStatus status, const char *id,
        gpointer user_data)
{
    g_print ("%s: %s(): a card was added\n", __FILE__, __FUNCTION__);
}

static void
card_changed_cb (EBook* book, EBookStatus status, gpointer user_data)
{
    g_print ("%s: %s(): a card was changed with status %d\n", __FILE__, __FUNCTION__, status);
}

/* Callback for the add_card signal from the contact editor */
static void
add_card_cb (EContactEditor *ce, ECard *card, gpointer data)
{
    EBook *book;

    book = E_BOOK (data);
    e_book_add_card (book, card, card_added_cb, NULL);
}

/* Callback for the commit_card signal from the contact editor */
static void
commit_card_cb (EContactEditor *ce, ECard *card, gpointer data)
{
    EBook *book;

    book = E_BOOK (data);
    e_book_commit_card (book, card, card_changed_cb, NULL);
}

/* Callback used when the contact editor is closed */
static void
editor_closed_cb (EContactEditor *ce, gpointer data)
{
    gtk_object_unref (GTK_OBJECT (ce));
}

static gboolean
e_minicard_view_event (GnomeCanvasItem *item, GdkEvent *event)
{
    EMinicardView *view;
 
    view = E_MINICARD_VIEW (item);

    switch( event->type ) {
    case GDK_2BUTTON_PRESS:
        if (((GdkEventButton *)event)->button == 1)
        {
            ECard *card;
            EContactEditor *ce;
            EBook *book;

            card = e_card_new("");

            gtk_object_get(GTK_OBJECT(view), "book", &book, NULL);
            g_assert (E_IS_BOOK (book));

            ce = e_contact_editor_new (card, TRUE);

            gtk_signal_connect (GTK_OBJECT (ce), "add_card",
                        GTK_SIGNAL_FUNC (add_card_cb), book);
            gtk_signal_connect (GTK_OBJECT (ce), "commit_card",
                        GTK_SIGNAL_FUNC (commit_card_cb), book);
            gtk_signal_connect (GTK_OBJECT (ce), "editor_closed",
                        GTK_SIGNAL_FUNC (editor_closed_cb), NULL);

            gtk_object_sink(GTK_OBJECT(card));
        }
        return TRUE;
    default:
        if (GNOME_CANVAS_ITEM_CLASS(parent_class)->event)
            return GNOME_CANVAS_ITEM_CLASS(parent_class)->event(item, event);
        else
            return FALSE;
        break;
    }
}

static void
disconnect_signals(EMinicardView *view)
{
    if (view->book_view && view->create_card_id)
        gtk_signal_disconnect(GTK_OBJECT (view->book_view),
                      view->create_card_id);
    if (view->book_view && view->remove_card_id)
        gtk_signal_disconnect(GTK_OBJECT (view->book_view),
                      view->remove_card_id);
    if (view->book_view && view->modify_card_id)
        gtk_signal_disconnect(GTK_OBJECT (view->book_view),
                      view->modify_card_id);

    view->create_card_id = 0;
    view->remove_card_id = 0;
    view->modify_card_id = 0;
}

static void
canvas_destroy(GtkObject *object, EMinicardView *view)
{
    disconnect_signals(view);
}

void
e_minicard_view_remove_selection(EMinicardView *view,
                 EBookCallback  cb,
                 gpointer       closure)
{
    if (view->book) {
        EReflow *reflow = E_REFLOW(view);
        GList *list;
        for (list = reflow->items; list; list = g_list_next(list)) {
            GnomeCanvasItem *item = list->data;
            gboolean has_focus;
            gtk_object_get(GTK_OBJECT(item),
                       "has_focus", &has_focus,
                       NULL);
            if (has_focus) {
                ECard *card;
                gtk_object_get(GTK_OBJECT(item),
                           "card", &card,
                           NULL);
                e_book_remove_card(view->book, card, cb, closure);
                return;
            }
        }
    }
}

static int
compare_to_letter(EMinicard *card, char *letter)
{
    g_return_val_if_fail(card != NULL, 0);
    g_return_val_if_fail(E_IS_MINICARD(card), 0);

    if (*letter == '1')
        return 1;

    if (card->card) {
        char *file_as;
        gtk_object_get(GTK_OBJECT(card->card),
                   "file_as", &file_as,
                   NULL);
        if (file_as)
            return strncasecmp(file_as, letter, 1);
        else
            return 0;
    } else {
        return 0;
    }
}

void       e_minicard_view_jump_to_letter   (EMinicardView *view,
                         char           letter)
{
    e_reflow_sorted_jump(E_REFLOW_SORTED(view),
                 (GCompareFunc) compare_to_letter,
                 &letter);
}