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path: root/plugins/contacts-map/contacts-map.c
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/*
 * 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:
 *      Cedric Bosdonnat <cedric.bosdonnat@free.fr>
 *
 * Copyright (C) 2009 Cedric Bosdonnat (http://cedric.bosdonnat.free.fr)
 *
 */
#include "geo-utils.h"

#include <glib/gi18n.h>

#include <libedataserver/e-source.h>
#include <libedataserverui/e-source-selector.h>

#include <shell/e-shell-sidebar.h>
#include <shell/e-shell-view.h>
#include <shell/e-shell-window.h>

/* Plugin entry points */

gboolean addressbook_map_init (GtkUIManager *ui_manager, EShellView *shell_view);
void action_show_ebook_map (GtkAction *action, EShellView *shell_view);
void show_map_general (ESourceSelector *selector);

/* Implementations */

gboolean
addressbook_map_init (GtkUIManager *ui_manager, EShellView *shell_view)
{
    EShellWindow *shell_window;
    GtkActionGroup *action_group;
    GtkAction *action;
    GIcon *icon;
    const gchar *tooltip;
    const gchar *name;
    const gchar *label;

    shell_window = e_shell_view_get_shell_window (shell_view);

    name = "contacts-map";
    label = _("Contacts map");
    tooltip = _("Show a map of all the contacts");
    action = gtk_action_new (name, NULL, tooltip, NULL);
    icon = g_themed_icon_new ("gnome-globe");
    gtk_action_set_gicon (action, icon);
    gtk_action_set_label (action, label);

    name = "contacts";
    action_group = e_shell_window_get_action_group (shell_window, name);
    gtk_action_group_add_action (action_group, action);

    g_signal_connect (
            action, "activate",
            G_CALLBACK (action_show_ebook_map), shell_view);

    g_object_unref (action);

    return TRUE;
}

void
action_show_ebook_map (GtkAction *action, EShellView *shell_view)
{
    EShellSidebar *shell_sidebar;
    ESourceSelector *selector = NULL;

    shell_sidebar = e_shell_view_get_shell_sidebar (shell_view);
    g_object_get (shell_sidebar, "selector", &selector, NULL);
    g_return_if_fail (selector != NULL);

    show_map_general (selector);

    g_object_unref (selector);
}

void
show_map_general (ESourceSelector *selector)
{
    EBook *book;
    ESource *primary_source;
    EBookQuery *query;
    GList *contacts, *tmp;
    gchar *uri;

    GeoclueGeocode *geocoder;
    GeocluePositionFields fields;
    GeoclueAccuracy *accuracy;

    gdouble lat = 0;
    gdouble lng = 0;

    GtkWidget *map_widget;
    ChamplainView  *view;
    ChamplainLayer *layer;

    gdouble *min_lat = NULL;
    gdouble *max_lat = NULL;
    gdouble *min_lng = NULL;
    gdouble *max_lng = NULL;

    primary_source = (ESource*)e_source_selector_peek_primary_selection (selector);
    uri = e_source_get_uri (primary_source);
    book = e_book_new_from_uri (uri, NULL);

    if (!book || !e_book_open (book, TRUE, NULL))
    {
        g_warning ("Couldn't load addressbook %s", uri);
        return;
    }

    /* Get all the contacts with an address */
    query = e_book_query_field_exists (E_CONTACT_ADDRESS);
    e_book_get_contacts (book, query, &contacts, NULL);
    e_book_query_unref (query);

    init_map (&view, &map_widget);
    layer = champlain_selection_layer_new ();

    geocoder = NULL;
    geocoder = get_geocoder ();
    if (geocoder != NULL) {
        for (tmp = contacts; tmp; tmp = tmp->next) {
            GError *error = NULL;
            EContact *contact;
            EContactAddress *addr;
            GHashTable *details;
            gint i;
            const gint addr_fields[] = {
                E_CONTACT_ADDRESS_HOME,
                E_CONTACT_ADDRESS_WORK,
                E_CONTACT_ADDRESS_OTHER
            };

            contact = tmp->data;

            /* Get the lat & lng and add the marker asynchronously */
            i = 0;
            addr = NULL;
            while (!addr && i<G_N_ELEMENTS (addr_fields)) {
                addr = e_contact_get (contact, addr_fields[i]);
                i++;
            }

            details = (GHashTable*) get_geoclue_from_address (addr);
            fields = geoclue_geocode_address_to_position (geocoder, details,
                    &lat, &lng, NULL, &accuracy, &error);

            if (!error &&
                (fields & GEOCLUE_POSITION_FIELDS_LATITUDE) != 0 &&
                (fields & GEOCLUE_POSITION_FIELDS_LONGITUDE) != 0) {
                /* Add the marker to the map */
                add_marker (layer, lat, lng, contact);
                if (!min_lat) {
                    min_lat = g_malloc (sizeof (gdouble));
                    *min_lat = lat;
                }
                if (!max_lat) {
                    max_lat = g_malloc (sizeof (gdouble));
                    *max_lat = lat;
                }
                if (!min_lng) {
                    min_lng = g_malloc (sizeof (gdouble));
                    *min_lng = lng;
                }
                if (!max_lng) {
                    max_lng = malloc (sizeof (gdouble));
                    *max_lng = lng;
                }

                /* Store the min/max lat/lng */
                get_min_max (min_lat, max_lat,
                        min_lng, max_lng, lat, lng);
            } else if (error) {
                g_warning ("Error while geocoding: %s\n", error->message);
                g_error_free (error);
            }

            g_hash_table_destroy (details);
            g_object_unref (contact);
        }
    }

    champlain_view_add_layer (view, layer);
    champlain_layer_show (layer);
    champlain_layer_show_all_markers (CHAMPLAIN_LAYER (layer));

    create_map_window (map_widget, _("Contacts map"));

    /* Do not ensure something visible is we have nothing */
    if (min_lat && min_lng && max_lat && max_lng)
        champlain_view_ensure_visible (view,
                *min_lat, *min_lng,
                *max_lat, *max_lng, FALSE);

    g_free (min_lat);
    g_free (max_lat);
    g_free (min_lng);
    g_free (max_lng);

    g_object_unref (geocoder);

    if (contacts != NULL)
        g_list_free (contacts);

    g_object_unref (book);
    g_free (uri);
}