path: root/addressbook/gui/widgets/e-minicard-view.c

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

#include <config.h>

#include "e-minicard-view.h"

#include "e-addressbook-util.h"

#include <gtk/gtkselection.h>
#include <gtk/gtkdnd.h>
#include <gal/widgets/e-canvas.h>
#include <gal/widgets/e-unicode.h>
#include <libgnome/gnome-i18n.h>

static void e_minicard_view_drag_data_get(GtkWidget *widget,
                      GdkDragContext *context,
                      GtkSelectionData *selection_data,
                      guint info,
                      guint time,
                      EMinicardView *view);

static EReflowClass *parent_class = NULL;
#define PARENT_TYPE (E_REFLOW_TYPE)

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

enum DndTargetType {
    DND_TARGET_TYPE_VCARD_LIST,
};
#define VCARD_LIST_TYPE "text/x-vcard"
static GtkTargetEntry drag_types[] = {
    { VCARD_LIST_TYPE, 0, DND_TARGET_TYPE_VCARD_LIST }
};
static gint num_drag_types = sizeof(drag_types) / sizeof(drag_types[0]);

static void
e_minicard_view_drag_data_get(GtkWidget *widget,
                  GdkDragContext *context,
                  GtkSelectionData *selection_data,
                  guint info,
                  guint time,
                  EMinicardView *view)
{
    if (!E_IS_MINICARD_VIEW(view))
        return;

    switch (info) {
    case DND_TARGET_TYPE_VCARD_LIST: {
        char *value;
        
        value = e_card_list_get_vcard(view->drag_list);

        gtk_selection_data_set (selection_data,
                    selection_data->target,
                    8,
                    value, strlen (value));
        break;
    }
    }

    g_list_foreach (view->drag_list, (GFunc)gtk_object_unref, NULL);
    g_list_free (view->drag_list);
    view->drag_list = NULL;
}

typedef struct {
    GList *list;
    EAddressbookReflowAdapter *adapter;
} ModelAndList;

static void
add_to_list (int index, gpointer closure)
{
    ModelAndList *mal = closure;
    mal->list = g_list_prepend (mal->list, e_addressbook_reflow_adapter_get_card (mal->adapter, index));
}

static GList *
get_card_list (EAddressbookReflowAdapter *adapter, ESelectionModel *selection)
{
    ModelAndList mal;

    mal.adapter = adapter;
    mal.list = NULL;

    e_selection_model_foreach (selection, add_to_list, &mal);

    mal.list = g_list_reverse (mal.list);
    return mal.list;
}

static int
e_minicard_view_drag_begin (EAddressbookReflowAdapter *adapter, GdkEvent *event, EMinicardView *view)
{
    GdkDragContext *context;
    GtkTargetList *target_list;
    GdkDragAction actions = GDK_ACTION_MOVE | GDK_ACTION_COPY;
    
    view->drag_list = get_card_list (adapter, E_REFLOW (view)->selection);

    g_print ("dragging %d card(s)\n", g_list_length (view->drag_list));

    target_list = gtk_target_list_new (drag_types, num_drag_types);

    context = gtk_drag_begin (GTK_WIDGET (GNOME_CANVAS_ITEM (view)->canvas),
                  target_list, actions, 1/*XXX*/, event);

    if (!view->canvas_drag_data_get_id)
        view->canvas_drag_data_get_id = gtk_signal_connect (GTK_OBJECT (GNOME_CANVAS_ITEM (view)->canvas),
                                    "drag_data_get",
                                    GTK_SIGNAL_FUNC (e_minicard_view_drag_data_get),
                                    view);

    gtk_drag_set_icon_default (context);

    return TRUE;
}

static void
set_empty_message (EMinicardView *view)
{
    char *empty_message;
    gboolean editable = FALSE;

    if (view->adapter) {
        gtk_object_get (GTK_OBJECT (view->adapter),
                "editable", &editable,
                NULL);
    }

    if (editable)
        empty_message = e_utf8_from_locale_string(_("\n\nThere are no items to show in this view.\n\n"
                                "Double-click here to create a new Contact."));
    else
        empty_message = e_utf8_from_locale_string(_("\n\nThere are no items to show in this view."));

    gtk_object_set (GTK_OBJECT(view),
            "empty_message", empty_message,
            NULL);

    g_free (empty_message);
}

static void
writable_status_change (EAddressbookModel *model, gboolean writable, EMinicardView *view)
{
    set_empty_message (view);
}

static void
adapter_changed (EMinicardView *view)
{
    set_empty_message (view);

    gtk_signal_connect (GTK_OBJECT (view->adapter), "drag_begin",
                GTK_SIGNAL_FUNC (e_minicard_view_drag_begin), view);
}

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_ADAPTER:
        if (view->adapter) {
            if (view->writable_status_id) {
                EAddressbookModel *model;
                gtk_object_get (GTK_OBJECT (view->adapter),
                        "model", &model,
                        NULL);
                if (model) {
                    gtk_signal_disconnect (GTK_OBJECT (model), view->writable_status_id);
                }
            }

            gtk_object_unref (GTK_OBJECT(view->adapter));
        }
        view->writable_status_id = 0;
        view->adapter = GTK_VALUE_POINTER (*arg);
        gtk_object_ref (GTK_OBJECT (view->adapter));
        adapter_changed (view);
        gtk_object_set (GTK_OBJECT (view),
                "model", view->adapter,
                NULL);
        if (view->adapter) {
            EAddressbookModel *model;
            gtk_object_get (GTK_OBJECT (view->adapter),
                    "model", &model,
                    NULL);
            if (model) {
                view->writable_status_id =
                    gtk_signal_connect (GTK_OBJECT (model), "writable_status",
                                GTK_SIGNAL_FUNC (writable_status_change), view);
            }
                                
        }
        break;
    case ARG_BOOK:
        gtk_object_set (GTK_OBJECT (view->adapter),
                        "book", GTK_VALUE_OBJECT (*arg),
                        NULL);
        set_empty_message (view);
        break;
    case ARG_QUERY:
        gtk_object_set (GTK_OBJECT (view->adapter),
                        "query", GTK_VALUE_STRING (*arg),
                        NULL);
        break;
    case ARG_EDITABLE:
        gtk_object_set (GTK_OBJECT (view->adapter),
                        "editable", GTK_VALUE_BOOL (*arg),
                        NULL);
        set_empty_message (view);
        break;
    }
}

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

    view = E_MINICARD_VIEW (object);

    switch (arg_id) {
    case ARG_ADAPTER:
        GTK_VALUE_POINTER (*arg) = view->adapter;
        break;
    case ARG_BOOK:
        gtk_object_get (GTK_OBJECT (view->adapter),
                        "book", &GTK_VALUE_OBJECT (*arg),
                        NULL);
        break;
    case ARG_QUERY:
        gtk_object_get (GTK_OBJECT (view->adapter),
                        "query", &GTK_VALUE_STRING (*arg),
                        NULL);
        break;
    case ARG_EDITABLE:
        gtk_object_get (GTK_OBJECT (view->adapter),
                        "editable", &GTK_VALUE_BOOL (*arg),
                        NULL);
        break;
    default:
        arg->type = GTK_TYPE_INVALID;
        break;
    }
}

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

    if (view->canvas_drag_data_get_id) {
        gtk_signal_disconnect (GTK_OBJECT (GNOME_CANVAS_ITEM (view)->canvas),
                       view->canvas_drag_data_get_id);
    }

    if (view->adapter) {
        if (view->writable_status_id) {
            EAddressbookModel *model;
            gtk_object_get (GTK_OBJECT (view->adapter),
                    "model", &model,
                    NULL);
            if (model) {
                gtk_signal_disconnect (GTK_OBJECT (model), view->writable_status_id);
            }
        }

        gtk_object_unref (GTK_OBJECT(view->adapter));
    }
    view->writable_status_id = 0;
    view->adapter = NULL;

    GTK_OBJECT_CLASS(parent_class)->destroy (object);
}

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)
        {
            EBook *book;
            gboolean editable;

            gtk_object_get(GTK_OBJECT(view), "book", &book, NULL);
            gtk_object_get(GTK_OBJECT(view->adapter), "editable", &editable, NULL);

            g_assert (E_IS_BOOK (book));

            e_addressbook_show_contact_editor (book, e_card_new(""), TRUE, editable);
            return TRUE;
        }
    case GDK_BUTTON_PRESS:
        if (event->button.button == 3) {
            return e_addressbook_reflow_adapter_base_right_click (view->adapter, event);
        }
        break;
    default:
        break;
    }

    if (GNOME_CANVAS_ITEM_CLASS(parent_class)->event)
        return GNOME_CANVAS_ITEM_CLASS(parent_class)->event(item, event);
    else
        return FALSE;
}

static gint
e_minicard_view_selection_event (EReflow *reflow, GnomeCanvasItem *item, GdkEvent *event)
{
    EMinicardView *view;
    int return_val = FALSE;

    view = E_MINICARD_VIEW (reflow);
    if (parent_class->selection_event) {
        return_val = parent_class->selection_event (reflow, item, event);
    }

    switch (event->type) {
    case GDK_FOCUS_CHANGE:
        if (event->focus_change.in) {
            int i;
            for (i = 0; i < reflow->count; i++) {
                if (reflow->items[i] == item) {
                    e_selection_model_maybe_do_something(reflow->selection, i, 0, 0);
                    break;
                }
            }
        }
        break;
    case GDK_BUTTON_PRESS:
        if (event->button.button == 3) {
            return_val = e_addressbook_reflow_adapter_right_click (view->adapter, event, reflow->selection);
            if (!return_val)
                e_selection_model_right_click_up(E_SELECTION_MODEL (view->selection));
        }
        break;
    default:
        break;
    }
    return return_val;
}

typedef struct {
    EMinicardView *view;
    EBookCallback cb;
    gpointer closure;
} ViewCbClosure;

static void
do_remove (int i, gpointer user_data)
{
    EBook *book;
    ECard *card;
    ViewCbClosure *viewcbclosure = user_data;
    EMinicardView *view = viewcbclosure->view;
    EBookCallback cb = viewcbclosure->cb;
    gpointer closure = viewcbclosure->closure;

    gtk_object_get (GTK_OBJECT(view->adapter),
            "book", &book,
            NULL);

    card = e_addressbook_reflow_adapter_get_card (view->adapter, i);

    e_book_remove_card(book, card, cb, closure);

    gtk_object_unref (GTK_OBJECT (card));
}

void
e_minicard_view_remove_selection(EMinicardView *view,
                 EBookCallback  cb,
                 gpointer       closure)
{
    ViewCbClosure viewcbclosure;
    viewcbclosure.view = view;
    viewcbclosure.cb = cb;
    viewcbclosure.closure = closure;

    e_selection_model_foreach (E_REFLOW (view)->selection,
                   do_remove,
                   &viewcbclosure);
}

#if 0
static int
compare_to_utf_str (EMinicard *card, const char *utf_str)
{
    g_return_val_if_fail(card != NULL, 0);
    g_return_val_if_fail(E_IS_MINICARD(card), 0);

    if (g_unichar_isdigit (g_utf8_get_char (utf_str))) {
        return 1;
    }

    if (card->card) {
        char *file_as;
        gtk_object_get(GTK_OBJECT(card->card),
                   "file_as", &file_as,
                   NULL);
        if (file_as)
            return g_utf8_strcasecmp (file_as, utf_str);
        else
            return 0;
    } else {
        return 0;
    }
}
#endif



void
e_minicard_view_jump_to_letter (EMinicardView *view,
                                gunichar letter)
{
#if 0
    char uft_str[6 + 1];

    utf_str [g_unichar_to_utf8 (letter, utf_str)] = '\0';
    e_reflow_sorted_jump (E_REFLOW_SORTED (view),
                          (GCompareFunc) compare_to_utf_str,
                          utf_str);
#endif
}

static void
e_minicard_view_class_init (EMinicardViewClass *klass)
{
    GtkObjectClass *object_class;
    GnomeCanvasItemClass *item_class;
    EReflowClass *reflow_class;
    
    object_class = (GtkObjectClass*) klass;
    item_class = (GnomeCanvasItemClass *) klass;
    reflow_class = (EReflowClass *) klass;
    
    parent_class = gtk_type_class (PARENT_TYPE);
    
    gtk_object_add_arg_type ("EMinicardView::adapter", GTK_TYPE_OBJECT, 
                 GTK_ARG_READWRITE, ARG_ADAPTER);
    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);
    gtk_object_add_arg_type ("EMinicardView::editable", GTK_TYPE_BOOL,
                 GTK_ARG_READWRITE, ARG_EDITABLE);

    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;

    reflow_class->selection_event = e_minicard_view_selection_event;
    /* GnomeCanvasItem method overrides */
}

static void
e_minicard_view_init (EMinicardView *view)
{
    view->adapter = NULL;
    view->canvas_drag_data_get_id = 0;
    view->writable_status_id = 0;

    set_empty_message (view);
}

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 (PARENT_TYPE, &reflow_info);
    }

    return reflow_type;
}