src/empathy-map-view.c

   1 /*
   2  * Copyright (C) 2008, 2009 Collabora Ltd.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  *
  18  * Authors: Pierre-Luc Beaudoin <pierre-luc.beaudoin@collabora.co.uk>
  19  */
  20
  21 #include <config.h>
  22
  23 #include <sys/stat.h>
  24 #include <gtk/gtk.h>
  25 #include <glib/gi18n.h>
  26
  27 #include <champlain/champlain.h>
  28 #include <champlain-gtk/champlain-gtk.h>
  29 #include <clutter-gtk/gtk-clutter-embed.h>
  30 #include <telepathy-glib/util.h>
  31
  32 #include <libempathy/empathy-contact.h>
  33 #include <libempathy/empathy-contact-manager.h>
  34 #include <libempathy/empathy-utils.h>
  35 #include <libempathy/empathy-location.h>
  36
  37 #include <libempathy-gtk/empathy-contact-list-store.h>
  38 #include <libempathy-gtk/empathy-contact-list-view.h>
  39 #include <libempathy-gtk/empathy-presence-chooser.h>
  40 #include <libempathy-gtk/empathy-ui-utils.h>
  41
  42 #include "empathy-map-view.h"
  43
  44 #define DEBUG_FLAG EMPATHY_DEBUG_LOCATION
  45 #include <libempathy/empathy-debug.h>
  46
  47 typedef struct {
  48   EmpathyContactListStore *list_store;
  49
  50   GtkWidget *window;
  51   GtkWidget *zoom_in;
  52   GtkWidget *zoom_out;
  53   ChamplainView *map_view;
  54   ChamplainLayer *layer;
  55 } EmpathyMapView;
  56
  57 static void map_view_destroy_cb (GtkWidget *widget,
  58     EmpathyMapView *window);
  59 static gboolean map_view_contacts_foreach (GtkTreeModel *model,
  60     GtkTreePath *path,
  61     GtkTreeIter *iter,
  62     gpointer user_data);
  63 static void map_view_zoom_in_cb (GtkWidget *widget,
  64     EmpathyMapView *window);
  65 static void map_view_zoom_out_cb (GtkWidget *widget,
  66     EmpathyMapView *window);
  67 static void map_view_contact_location_notify (GObject *gobject,
  68     GParamSpec *arg1,
  69     gpointer user_data);
  70
  71 GtkWidget *
  72 empathy_map_view_show (void)
  73 {
  74   static EmpathyMapView *window = NULL;
  75   GtkBuilder *gui;
  76   GtkWidget *sw;
  77   GtkWidget *embed;
  78   gchar *filename;
  79   GtkTreeModel *model;
  80   EmpathyContactList *list_iface;
  81   EmpathyContactListStore *list_store;
  82
  83   if (window)
  84     {
  85       empathy_window_present (GTK_WINDOW (window->window), TRUE);
  86       return window->window;
  87     }
  88
  89   window = g_slice_new0 (EmpathyMapView);
  90
  91   /* Set up interface */
  92   filename = empathy_file_lookup ("empathy-map-view.ui", "src");
  93   gui = empathy_builder_get_file (filename,
  94      "map_view", &window->window,
  95      "zoom_in", &window->zoom_in,
  96      "zoom_out", &window->zoom_out,
  97      "map_scrolledwindow", &sw,
  98      NULL);
  99   g_free (filename);
 100
 101   empathy_builder_connect (gui, window,
 102       "map_view", "destroy", map_view_destroy_cb,
 103       "zoom_in", "clicked", map_view_zoom_in_cb,
 104       "zoom_out", "clicked", map_view_zoom_out_cb,
 105       NULL);
 106
 107   g_object_unref (gui);
 108
 109   /* Clear the static pointer to window if the dialog is destroyed */
 110   g_object_add_weak_pointer (G_OBJECT (window->window), (gpointer *) &window);
 111
 112   list_iface = EMPATHY_CONTACT_LIST (empathy_contact_manager_dup_singleton ());
 113   list_store = empathy_contact_list_store_new (list_iface);
 114   empathy_contact_list_store_set_show_groups (list_store, FALSE);
 115   empathy_contact_list_store_set_show_avatars (list_store, TRUE);
 116   g_object_unref (list_iface);
 117
 118   window->list_store = list_store;
 119
 120   /* Set up map view */
 121   window->map_view = CHAMPLAIN_VIEW (champlain_view_new ());
 122   g_object_set (G_OBJECT (window->map_view), "zoom-level", 1,
 123      "scroll-mode", CHAMPLAIN_SCROLL_MODE_KINETIC, NULL);
 124   champlain_view_center_on (window->map_view, 36, 0);
 125
 126   embed = champlain_view_embed_new (window->map_view);
 127   gtk_container_add (GTK_CONTAINER (sw),
 128      GTK_WIDGET (embed));
 129   gtk_widget_show_all (embed);
 130
 131   window->layer = g_object_ref (champlain_layer_new ());
 132   champlain_view_add_layer (window->map_view, window->layer);
 133
 134   /* Set up contact list. */
 135   model = GTK_TREE_MODEL (window->list_store);
 136   gtk_tree_model_foreach (model, map_view_contacts_foreach, window);
 137
 138   empathy_window_present (GTK_WINDOW (window->window), TRUE);
 139   return window->window;
 140 }
 141
 142 static void
 143 map_view_destroy_cb (GtkWidget *widget,
 144     EmpathyMapView *window)
 145 {
 146   GList *item;
 147
 148   item = clutter_container_get_children (window->layer);
 149   while (item != NULL)
 150   {
 151     EmpathyContact *contact;
 152     ChamplainMarker *marker;
 153
 154     marker = CHAMPLAIN_MARKER (item->data);
 155     contact = g_object_get_data (G_OBJECT (marker), "contact");
 156     g_signal_handlers_disconnect_by_func (contact, map_view_contact_location_notify, marker);
 157
 158     item = g_list_next (item);
 159   }
 160
 161   g_object_unref (window->list_store);
 162   g_object_unref (window->layer);
 163   g_slice_free (EmpathyMapView, window);
 164 }
 165
 166 static void
 167 map_view_marker_update_position (ChamplainMarker *marker,
 168     EmpathyContact *contact)
 169 {
 170   gdouble lon, lat;
 171   GValue *value;
 172   GHashTable *location;
 173
 174   location = empathy_contact_get_location (contact);
 175
 176   if (location == NULL ||
 177       g_hash_table_size (location) == 0)
 178   {
 179     clutter_actor_hide (CLUTTER_ACTOR (marker));
 180     return;
 181   }
 182
 183   value = g_hash_table_lookup (location, EMPATHY_LOCATION_LAT);
 184   if (value == NULL)
 185     {
 186       clutter_actor_hide (CLUTTER_ACTOR (marker));
 187       return;
 188     }
 189   lat = g_value_get_double (value);
 190
 191   value = g_hash_table_lookup (location, EMPATHY_LOCATION_LON);
 192   if (value == NULL)
 193     {
 194       clutter_actor_hide (CLUTTER_ACTOR (marker));
 195       return;
 196     }
 197   lon = g_value_get_double (value);
 198
 199   clutter_actor_show (CLUTTER_ACTOR (marker));
 200   champlain_base_marker_set_position (CHAMPLAIN_BASE_MARKER (marker), lat, lon);
 201 }
 202
 203 static void
 204 map_view_contact_location_notify (GObject *gobject,
 205     GParamSpec *arg1,
 206     gpointer user_data)
 207 {
 208   ChamplainMarker *marker = CHAMPLAIN_MARKER (user_data);
 209   EmpathyContact *contact = EMPATHY_CONTACT (gobject);
 210   map_view_marker_update_position (marker, contact);
 211 }
 212
 213 static gboolean
 214 map_view_contacts_foreach (GtkTreeModel *model,
 215     GtkTreePath *path,
 216     GtkTreeIter *iter,
 217     gpointer user_data)
 218 {
 219   EmpathyMapView *window = (EmpathyMapView*) user_data;
 220   EmpathyContact *contact;
 221   ClutterActor *marker;
 222   ClutterActor *texture;
 223   GHashTable *location;
 224   GdkPixbuf *avatar;
 225   const gchar *name;
 226   gchar *date;
 227   gchar *label;
 228   GValue *gtime;
 229   time_t time;
 230
 231   gtk_tree_model_get (model, iter, EMPATHY_CONTACT_LIST_STORE_COL_CONTACT,
 232      &contact, -1);
 233
 234   if (contact == NULL)
 235     return FALSE;
 236
 237   location = empathy_contact_get_location (contact);
 238
 239   if (location == NULL)
 240     return FALSE;
 241
 242   marker = champlain_marker_new ();
 243
 244   avatar = empathy_pixbuf_avatar_from_contact_scaled (contact, 32, 32);
 245   if (avatar != NULL)
 246     {
 247       texture = clutter_texture_new ();
 248       gtk_clutter_texture_set_from_pixbuf (CLUTTER_TEXTURE (texture), avatar);
 249       champlain_marker_set_image (CHAMPLAIN_MARKER (marker), texture);
 250       g_object_unref (avatar);
 251     }
 252   else
 253     champlain_marker_set_image (CHAMPLAIN_MARKER (marker), NULL);
 254
 255   name = empathy_contact_get_name (contact);
 256   gtime = g_hash_table_lookup (location, EMPATHY_LOCATION_TIMESTAMP);
 257   if (gtime != NULL)
 258     {
 259       time = g_value_get_int64 (gtime);
 260       date = empathy_time_to_string_relative (time);
 261       label = g_strconcat ("<b>", name, "</b>\n<small>", date, "</small>", NULL);
 262       g_free (date);
 263     }
 264   else
 265     {
 266       label = g_strconcat ("<b>", name, "</b>\n", NULL);
 267     }
 268   champlain_marker_set_use_markup (CHAMPLAIN_MARKER (marker), TRUE);
 269   champlain_marker_set_text (CHAMPLAIN_MARKER (marker), label);
 270   g_free (label);
 271
 272   clutter_container_add (CLUTTER_CONTAINER (window->layer), marker, NULL);
 273
 274   g_signal_connect (contact, "notify::location",
 275       G_CALLBACK (map_view_contact_location_notify), marker);
 276   g_object_set_data_full (G_OBJECT (marker), "contact", g_object_ref (contact), g_object_unref);
 277
 278   map_view_marker_update_position (CHAMPLAIN_MARKER (marker), contact);
 279
 280   g_object_unref (contact);
 281   return FALSE;
 282 }
 283
 284 static void
 285 map_view_zoom_in_cb (GtkWidget *widget,
 286     EmpathyMapView *window)
 287 {
 288   champlain_view_zoom_in (window->map_view);
 289 }
 290
 291 static void
 292 map_view_zoom_out_cb (GtkWidget *widget,
 293     EmpathyMapView *window)
 294 {
 295   champlain_view_zoom_out (window->map_view);
 296 }