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

/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *      Chris Lahey <clahey@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#include <config.h>

#include "e-minicard-view.h"

#include "eab-gui-util.h"
#include "util/eab-book-util.h"
#include "e-util/e-util.h"

#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <misc/e-canvas.h>
#include <glib/gi18n.h>
#include <string.h>
#include "e-util/e-util.h"
#include "ea-addressbook.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 {
    PROP_0,
    PROP_ADAPTER,
    PROP_BOOK,
    PROP_QUERY,
    PROP_EDITABLE
};

enum {
    CREATE_CONTACT,
    CREATE_CONTACT_LIST,
    RIGHT_CLICK,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = {0, };

enum DndTargetType {
    DND_TARGET_TYPE_VCARD_LIST,
    DND_TARGET_TYPE_SOURCE_VCARD_LIST
};
#define VCARD_LIST_TYPE "text/x-vcard"
#define SOURCE_VCARD_LIST_TYPE "text/x-source-vcard"
static GtkTargetEntry drag_types[] = {
    { (gchar *) SOURCE_VCARD_LIST_TYPE, 0, DND_TARGET_TYPE_SOURCE_VCARD_LIST },
    { (gchar *) VCARD_LIST_TYPE, 0, DND_TARGET_TYPE_VCARD_LIST }
};

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

    if (!E_IS_MINICARD_VIEW (view))
        return;

    target = gtk_selection_data_get_target (selection_data);

    switch (info) {
    case DND_TARGET_TYPE_VCARD_LIST: {
        gchar *value;

        value = eab_contact_list_to_string (view->drag_list);

        gtk_selection_data_set (
            selection_data, target, 8,
            (guchar *) value, strlen (value));
        g_free (value);
        break;
    }
    case DND_TARGET_TYPE_SOURCE_VCARD_LIST: {
        EBook *book;
        gchar *value;

        g_object_get (view->adapter, "book", &book, NULL);
        value = eab_book_and_contact_list_to_string (book, view->drag_list);

        gtk_selection_data_set (
            selection_data, target, 8,
            (guchar *) value, strlen (value));
        g_free (value);
        break;
    }
    }
}

static void
clear_drag_data (EMinicardView *view)
{
    g_list_foreach (view->drag_list, (GFunc) g_object_unref, NULL);
    g_list_free (view->drag_list);
    view->drag_list = NULL;
}

static gint
e_minicard_view_drag_begin (EAddressbookReflowAdapter *adapter,
                            GdkEvent *event,
                            EMinicardView *view)
{
    GdkDragContext *context;
    GtkTargetList *target_list;
    GdkDragAction actions = GDK_ACTION_MOVE | GDK_ACTION_COPY;

    clear_drag_data (view);

    view->drag_list = e_minicard_view_get_card_list (view);

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

    target_list = gtk_target_list_new (drag_types, G_N_ELEMENTS (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 = g_signal_connect (GNOME_CANVAS_ITEM (view)->canvas,
                                  "drag_data_get",
                                  G_CALLBACK (e_minicard_view_drag_data_get),
                                  view);

    gtk_drag_set_icon_default (context);

    return TRUE;
}

static void
set_empty_message (EMinicardView *view)
{
    gchar *empty_message;
    gboolean editable = FALSE, perform_initial_query = FALSE, searching = FALSE;
    EBook *book;

    if (view->adapter) {
        EAddressbookModel *model = NULL;

        g_object_get (view->adapter,
                  "editable", &editable,
                  "model", &model,
                  "book", &book,
                  NULL);

        if (book && !e_book_check_static_capability (book, "do-initial-query"))
            perform_initial_query = TRUE;

        searching = model && e_addressbook_model_can_stop (model);
    }

    if (searching) {
        empty_message = _("\n\nSearching for the Contacts...");
    } else if (editable) {
        if (perform_initial_query)
            empty_message = _("\n\nSearch for the Contact\n\n"
                      "or double-click here to create a new Contact.");
        else
            empty_message = _("\n\nThere are no items to show in this view.\n\n"
                      "Double-click here to create a new Contact.");
    } else {
        if (perform_initial_query)
            empty_message = _("\n\nSearch for the Contact.");
        else
            empty_message = _("\n\nThere are no items to show in this view.");
    }

    g_object_set (view,
              "empty_message", empty_message,
              NULL);
}

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

static void
stop_state_changed (EAddressbookModel *model,
                    EMinicardView *view)
{
    set_empty_message (view);
}

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

    g_signal_connect (view->adapter, "drag_begin",
              G_CALLBACK (e_minicard_view_drag_begin), view);
}

static void
e_minicard_view_set_property (GObject *object,
                  guint prop_id,
                  const GValue *value,
                  GParamSpec *pspec)
{
    EMinicardView *view;

    view = E_MINICARD_VIEW (object);

    switch (prop_id) {
    case PROP_ADAPTER:
        if (view->adapter) {
            if (view->writable_status_id || view->stop_state_id) {
                EAddressbookModel *model;
                g_object_get (view->adapter,
                          "model", &model,
                          NULL);
                if (model) {
                    if (view->writable_status_id)
                        g_signal_handler_disconnect (model, view->writable_status_id);
                    if (view->stop_state_id)
                        g_signal_handler_disconnect (model, view->stop_state_id);
                }
            }

            g_object_unref (view->adapter);
        }
        view->writable_status_id = 0;
        view->stop_state_id = 0;
        view->adapter = g_value_get_object (value);
        g_object_ref (view->adapter);
        adapter_changed (view);
        g_object_set (view,
                  "model", view->adapter,
                  NULL);
        if (view->adapter) {
            EAddressbookModel *model;
            g_object_get (view->adapter,
                      "model", &model,
                      NULL);
            if (model) {
                view->writable_status_id =
                    g_signal_connect (model, "writable_status",
                              G_CALLBACK (writable_status_change), view);
                view->stop_state_id =
                    g_signal_connect (model, "stop_state_changed",
                              G_CALLBACK (stop_state_changed), view);
            }

        }
        break;
    case PROP_BOOK:
        g_object_set (view->adapter,
                  "book", g_value_get_object (value),
                  NULL);
        set_empty_message (view);
        break;
    case PROP_QUERY:
        g_object_set (view->adapter,
                  "query", g_value_get_string (value),
                  NULL);
        break;
    case PROP_EDITABLE:
        g_object_set (view->adapter,
                  "editable", g_value_get_boolean (value),
                  NULL);
        set_empty_message (view);
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
        break;
    }
}

static void
e_minicard_view_get_property (GObject *object,
                  guint prop_id,
                  GValue *value,
                  GParamSpec *pspec)
{
    EMinicardView *view;

    view = E_MINICARD_VIEW (object);

    switch (prop_id) {
    case PROP_ADAPTER:
        g_value_set_object (value, view->adapter);
        break;
    case PROP_BOOK:
        g_object_get_property (G_OBJECT (view->adapter),
                       "book", value);
        break;
    case PROP_QUERY:
        g_object_get_property (G_OBJECT (view->adapter),
                       "query", value);
        break;
    case PROP_EDITABLE:
        g_object_get_property (G_OBJECT (view->adapter),
                       "editable", value);
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
        break;
    }
}

static void
e_minicard_view_dispose (GObject *object)
{
    EMinicardView *view = E_MINICARD_VIEW (object);

    clear_drag_data (view);

    if (view->canvas_drag_data_get_id) {
        g_signal_handler_disconnect (GNOME_CANVAS_ITEM (view)->canvas,
                         view->canvas_drag_data_get_id);
        view->canvas_drag_data_get_id = 0;
    }

    if (view->adapter) {
        if (view->writable_status_id || view->stop_state_id) {
            EAddressbookModel *model;
            g_object_get (view->adapter,
                      "model", &model,
                      NULL);
            if (model) {
                if (view->writable_status_id)
                    g_signal_handler_disconnect (model, view->writable_status_id);
                if (view->stop_state_id)
                    g_signal_handler_disconnect (model, view->stop_state_id);
            }
        }

        g_object_unref (view->adapter);
    }
    view->writable_status_id = 0;
    view->stop_state_id = 0;
    view->adapter = NULL;

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (parent_class)->dispose (object);
}

static guint
e_minicard_view_right_click (EMinicardView *view, GdkEvent *event)
{
    guint ret_val = 0;
    g_signal_emit (view, signals[RIGHT_CLICK], 0,
               event, &ret_val);
    return ret_val;
}

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) {
            gboolean editable;

            g_object_get(view->adapter, "editable", &editable, NULL);

            if (editable)
                e_minicard_view_create_contact (view);
            return TRUE;
        }
    case GDK_BUTTON_PRESS:
        if (event->button.button == 3) {
            e_minicard_view_right_click (view, event);
        }
        break;
    case GDK_KEY_PRESS:
        if (event->key.keyval & GDK_SHIFT_MASK &&
            event->key.keyval == GDK_KEY_F10) {
            e_minicard_view_right_click (view, 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;
    gint 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) {
            gint 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_minicard_view_right_click (view, event);
            if (!return_val)
                e_selection_model_right_click_up (reflow->selection);
        }
        break;
    default:
        break;
    }
    return return_val;
}

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

static void
do_remove (gint i, gpointer user_data)
{
    EBook *book;
    EContact *contact;
    ViewCbClosure *viewcbclosure = user_data;
    EMinicardView *view = viewcbclosure->view;
    EBookAsyncCallback cb = viewcbclosure->cb;
    gpointer closure = viewcbclosure->closure;

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

    contact = e_addressbook_reflow_adapter_get_contact (view->adapter, i);

    e_book_remove_contact_async (book, contact, cb, closure);

    g_object_unref (contact);
}

#if 0
static gint
compare_to_utf_str (EMinicard *card, const gchar *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) {
        gchar *file_as;
        g_object_get (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

static void
e_minicard_view_class_init (EMinicardViewClass *klass)
{
    GObjectClass *object_class;
    GnomeCanvasItemClass *item_class;
    EReflowClass *reflow_class;

    object_class = G_OBJECT_CLASS (klass);
    item_class = (GnomeCanvasItemClass *) klass;
    reflow_class = (EReflowClass *) klass;

    parent_class = g_type_class_peek_parent (klass);

    object_class->set_property    = e_minicard_view_set_property;
    object_class->get_property    = e_minicard_view_get_property;
    object_class->dispose         = e_minicard_view_dispose;

    g_object_class_install_property (object_class, PROP_ADAPTER,
                     g_param_spec_object ("adapter",
                                  "Adapter",
                                  NULL,
                                  E_TYPE_ADDRESSBOOK_REFLOW_ADAPTER,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (object_class, PROP_BOOK,
                     g_param_spec_object ("book",
                                  "Book",
                                  NULL,
                                  E_TYPE_BOOK,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (object_class, PROP_QUERY,
                     g_param_spec_string ("query",
                                  "Query",
                                  NULL,
                                  NULL,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (object_class, PROP_EDITABLE,
                     g_param_spec_boolean ("editable",
                                   "Editable",
                                   NULL,
                                   FALSE,
                                   G_PARAM_READWRITE));

    signals[CREATE_CONTACT] =
        g_signal_new ("create-contact",
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                  0, NULL, NULL,
                  g_cclosure_marshal_VOID__VOID,
                  G_TYPE_NONE, 0);

    signals[CREATE_CONTACT_LIST] =
        g_signal_new ("create-contact-list",
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                  0, NULL, NULL,
                  g_cclosure_marshal_VOID__VOID,
                  G_TYPE_NONE, 0);

    signals[RIGHT_CLICK] =
        g_signal_new ("right_click",
                  G_OBJECT_CLASS_TYPE (object_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (EMinicardViewClass, right_click),
                  NULL, NULL,
                  e_marshal_INT__POINTER,
                  G_TYPE_INT, 1, G_TYPE_POINTER);

    item_class->event             = e_minicard_view_event;

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

    /* init the accessibility support for e_minicard_view */
    e_minicard_view_a11y_init ();
}

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

    set_empty_message (view);
}

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

    if (!reflow_type) {
        static const GTypeInfo reflow_info =  {
            sizeof (EMinicardViewClass),
            NULL,           /* base_init */
            NULL,           /* base_finalize */
            (GClassInitFunc) e_minicard_view_class_init,
            NULL,           /* class_finalize */
            NULL,           /* class_data */
            sizeof (EMinicardView),
            0,             /* n_preallocs */
            (GInstanceInitFunc) e_minicard_view_init,
        };

        reflow_type = g_type_register_static (
            PARENT_TYPE, "EMinicardView", &reflow_info, 0);
    }

    return reflow_type;
}

void
e_minicard_view_remove_selection (EMinicardView      *view,
                 EBookAsyncCallback  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);
}

void
e_minicard_view_jump_to_letter (EMinicardView *view,
                                gunichar letter)
{
#if 0
    gchar 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
}

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

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

GList *
e_minicard_view_get_card_list (EMinicardView *view)
{
    ModelAndList mal;

    mal.adapter = view->adapter;
    mal.list = NULL;

    e_selection_model_foreach (E_REFLOW (view)->selection, add_to_list, &mal);

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

void
e_minicard_view_create_contact (EMinicardView *view)
{
    g_return_if_fail (E_IS_MINICARD_VIEW (view));

    g_signal_emit (view, signals[CREATE_CONTACT], 0);
}

void
e_minicard_view_create_contact_list (EMinicardView *view)
{
    g_return_if_fail (E_IS_MINICARD_VIEW (view));

    g_signal_emit (view, signals[CREATE_CONTACT_LIST], 0);
}