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)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "e-minicard-view.h"

#include <string.h>

#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <gdk/gdkkeysyms.h>

#include "e-util/e-util.h"

#include "eab-gui-util.h"
#include "util/eab-book-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);

enum {
    PROP_0,
    PROP_ADAPTER,
    PROP_CLIENT,
    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 }
};

G_DEFINE_TYPE (EMinicardView, e_minicard_view, E_TYPE_REFLOW)

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: {
        EBookClient *book_client = NULL;
        gchar *value;

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

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

        g_object_unref (book_client);
        g_free (value);
        break;
    }
    }
}

static void
clear_drag_data (EMinicardView *view)
{
    g_slist_free_full (view->drag_list, (GDestroyNotify) g_object_unref);
    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_slist_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;

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

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

        if (book_client && !e_client_check_capability (E_CLIENT (book_client), "do-initial-query"))
            perform_initial_query = TRUE;

        searching = model && e_addressbook_model_can_stop (model);

        if (book_client)
            g_object_unref (book_client);
        if (model)
            g_object_unref (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 property_id,
                              const GValue *value,
                              GParamSpec *pspec)
{
    EMinicardView *view;

    view = E_MINICARD_VIEW (object);

    switch (property_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_CLIENT:
        g_object_set (
            view->adapter,
            "client", 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, property_id, pspec);
        break;
    }
}

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

    view = E_MINICARD_VIEW (object);

    switch (property_id) {
    case PROP_ADAPTER:
        g_value_set_object (value, view->adapter);
        break;
    case PROP_CLIENT:
        g_object_get_property (
            G_OBJECT (view->adapter),
            "client", 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, property_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 (e_minicard_view_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;
    guint event_button = 0;

    view = E_MINICARD_VIEW (item);

    switch (event->type) {
    case GDK_2BUTTON_PRESS:
        gdk_event_get_button (event, &event_button);
        if (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:
        gdk_event_get_button (event, &event_button);
        if (event_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;
    }

    return GNOME_CANVAS_ITEM_CLASS (e_minicard_view_parent_class)->
        event (item, event);
}

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

    view = E_MINICARD_VIEW (reflow);
    return_val = E_REFLOW_CLASS (e_minicard_view_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;
}

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

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

    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_CLIENT,
        g_param_spec_object (
            "client",
            "EBookClient",
            NULL,
            E_TYPE_BOOK_CLIENT,
            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);
}

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 {
    GSList *list;
    EAddressbookReflowAdapter *adapter;
} ModelAndList;

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

GSList *
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);

    return g_slist_reverse (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);
}