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 #include <gdk/gdkkeysyms.h>
  27
  28 #include <champlain/champlain.h>
  29 #include <champlain-gtk/champlain-gtk.h>
  30 #include <clutter-gtk/clutter-gtk.h>
  31 #include <telepathy-glib/util.h>
  32
  33 #include <libempathy/empathy-contact.h>
  34 #include <libempathy/empathy-contact-manager.h>
  35 #include <libempathy/empathy-utils.h>
  36 #include <libempathy/empathy-location.h>
  37
  38 #include <libempathy-gtk/empathy-contact-menu.h>
  39 #include <libempathy-gtk/empathy-ui-utils.h>
  40
  41 #include "empathy-map-view.h"
  42
  43 #define DEBUG_FLAG EMPATHY_DEBUG_LOCATION
  44 #include <libempathy/empathy-debug.h>
  45
  46 G_DEFINE_TYPE (EmpathyMapView, empathy_map_view, GTK_TYPE_WINDOW);
  47
  48 #define GET_PRIV(self) ((EmpathyMapViewPriv *)((EmpathyMapView *) self)->priv)
  49
  50 struct _EmpathyMapViewPriv {
  51   EmpathyContactList *contact_list;
  52
  53   GtkWidget *zoom_in;
  54   GtkWidget *zoom_out;
  55   GtkWidget *throbber;
  56   ChamplainView *map_view;
  57   ChamplainMarkerLayer *layer;
  58   guint timeout_id;
  59   /* reffed (EmpathyContact *) => borrowed (ChamplainMarker *) */
  60   GHashTable *markers;
  61   gulong members_changed_id;
  62 };
  63
  64 static void
  65 map_view_state_changed (ChamplainView *view,
  66     GParamSpec *gobject,
  67     EmpathyMapView *self)
  68 {
  69   ChamplainState state;
  70   EmpathyMapViewPriv *priv = GET_PRIV (self);
  71
  72   g_object_get (G_OBJECT (view), "state", &state, NULL);
  73   if (state == CHAMPLAIN_STATE_LOADING)
  74     {
  75       gtk_spinner_start (GTK_SPINNER (priv->throbber));
  76       gtk_widget_show (priv->throbber);
  77     }
  78   else
  79     {
  80       gtk_spinner_stop (GTK_SPINNER (priv->throbber));
  81       gtk_widget_hide (priv->throbber);
  82     }
  83 }
  84
  85 static gboolean
  86 contact_has_location (EmpathyContact *contact)
  87 {
  88   GHashTable *location;
  89
  90   location = empathy_contact_get_location (contact);
  91
  92   if (location == NULL || g_hash_table_size (location) == 0)
  93     return FALSE;
  94
  95   return TRUE;
  96 }
  97
  98 static ClutterActor * create_marker (EmpathyMapView *window,
  99     EmpathyContact *contact);
 100
 101 static void
 102 map_view_update_contact_position (EmpathyMapView *self,
 103     EmpathyContact *contact)
 104 {
 105   EmpathyMapViewPriv *priv = GET_PRIV (self);
 106   gdouble lon, lat;
 107   GValue *value;
 108   GHashTable *location;
 109   ClutterActor *marker;
 110   gboolean has_location;
 111
 112   has_location = contact_has_location (contact);
 113
 114   marker = g_hash_table_lookup (priv->markers, contact);
 115   if (marker == NULL)
 116     {
 117       if (!has_location)
 118         return;
 119
 120       marker = create_marker (self, contact);
 121     }
 122   else if (!has_location)
 123     {
 124       champlain_marker_animate_out (CHAMPLAIN_MARKER (marker));
 125       return;
 126     }
 127
 128   location = empathy_contact_get_location (contact);
 129
 130   value = g_hash_table_lookup (location, EMPATHY_LOCATION_LAT);
 131   if (value == NULL)
 132     {
 133       clutter_actor_hide (marker);
 134       return;
 135     }
 136   lat = g_value_get_double (value);
 137
 138   value = g_hash_table_lookup (location, EMPATHY_LOCATION_LON);
 139   if (value == NULL)
 140     {
 141       clutter_actor_hide (marker);
 142       return;
 143     }
 144   lon = g_value_get_double (value);
 145
 146   champlain_location_set_location (CHAMPLAIN_LOCATION (marker), lat, lon);
 147   champlain_marker_animate_in (CHAMPLAIN_MARKER (marker));
 148 }
 149
 150 static void
 151 map_view_contact_location_notify (EmpathyContact *contact,
 152     GParamSpec *arg1,
 153     EmpathyMapView *self)
 154 {
 155   map_view_update_contact_position (self, contact);
 156 }
 157
 158 static void
 159 map_view_zoom_in_cb (GtkWidget *widget,
 160     EmpathyMapView *self)
 161 {
 162   EmpathyMapViewPriv *priv = GET_PRIV (self);
 163
 164   champlain_view_zoom_in (priv->map_view);
 165 }
 166
 167 static void
 168 map_view_zoom_out_cb (GtkWidget *widget,
 169     EmpathyMapView *self)
 170 {
 171   EmpathyMapViewPriv *priv = GET_PRIV (self);
 172
 173   champlain_view_zoom_out (priv->map_view);
 174 }
 175
 176 static void
 177 map_view_zoom_fit_cb (GtkWidget *widget,
 178     EmpathyMapView *self)
 179 {
 180   EmpathyMapViewPriv *priv = GET_PRIV (self);
 181
 182   champlain_view_ensure_layers_visible (priv->map_view, TRUE);
 183 }
 184
 185 static gboolean
 186 marker_clicked_cb (ChamplainMarker *marker,
 187     ClutterButtonEvent *event,
 188     EmpathyMapView *self)
 189 {
 190   GtkWidget *menu;
 191   EmpathyContact *contact;
 192
 193   if (event->button != 3)
 194     return FALSE;
 195
 196   contact = g_object_get_data (G_OBJECT (marker), "contact");
 197
 198   menu = empathy_contact_menu_new (contact,
 199       EMPATHY_CONTACT_FEATURE_CHAT |
 200       EMPATHY_CONTACT_FEATURE_CALL |
 201       EMPATHY_CONTACT_FEATURE_LOG |
 202       EMPATHY_CONTACT_FEATURE_FT |
 203       EMPATHY_CONTACT_FEATURE_INFO);
 204
 205   if (menu == NULL)
 206     return FALSE;
 207
 208   gtk_menu_attach_to_widget (GTK_MENU (menu), GTK_WIDGET (self), NULL);
 209
 210   gtk_widget_show (menu);
 211   gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL,
 212       event->button, event->time);
 213
 214   return FALSE;
 215 }
 216
 217 static void
 218 map_view_contacts_update_label (ClutterActor *marker)
 219 {
 220   const gchar *name;
 221   gchar *date;
 222   gchar *label;
 223   GValue *gtime;
 224   gint64 loctime;
 225   GHashTable *location;
 226   EmpathyContact *contact;
 227
 228   contact = g_object_get_data (G_OBJECT (marker), "contact");
 229   location = empathy_contact_get_location (contact);
 230   name = empathy_contact_get_alias (contact);
 231   gtime = g_hash_table_lookup (location, EMPATHY_LOCATION_TIMESTAMP);
 232
 233   if (gtime != NULL)
 234     {
 235       GDateTime *now, *d;
 236       GTimeSpan delta;
 237
 238       loctime = g_value_get_int64 (gtime);
 239       date = empathy_time_to_string_relative (loctime);
 240       label = g_strconcat ("<b>", name, "</b>\n<small>", date, "</small>", NULL);
 241       g_free (date);
 242
 243       now = g_date_time_new_now_utc ();
 244       d = g_date_time_new_from_unix_utc (loctime);
 245       delta = g_date_time_difference (now, d);
 246
 247       /* if location is older than a week */
 248       if (delta > G_TIME_SPAN_DAY * 7)
 249         clutter_actor_set_opacity (marker, 0.75 * 255);
 250
 251       g_date_time_unref (now);
 252       g_date_time_unref (d);
 253     }
 254   else
 255     {
 256       label = g_strconcat ("<b>", name, "</b>\n", NULL);
 257     }
 258
 259   champlain_label_set_use_markup (CHAMPLAIN_LABEL (marker), TRUE);
 260   champlain_label_set_text (CHAMPLAIN_LABEL (marker), label);
 261
 262   g_free (label);
 263 }
 264
 265 static ClutterActor *
 266 create_marker (EmpathyMapView *self,
 267     EmpathyContact *contact)
 268 {
 269   EmpathyMapViewPriv *priv = GET_PRIV (self);
 270   ClutterActor *marker;
 271   GdkPixbuf *avatar;
 272   ClutterActor *texture = NULL;
 273
 274   avatar = empathy_pixbuf_avatar_from_contact_scaled (contact, 32, 32);
 275   if (avatar != NULL)
 276     {
 277       texture = gtk_clutter_texture_new ();
 278
 279       gtk_clutter_texture_set_from_pixbuf (GTK_CLUTTER_TEXTURE (texture),
 280           avatar, NULL);
 281
 282       g_object_unref (avatar);
 283     }
 284
 285   marker = champlain_label_new_with_image (texture);
 286
 287   g_object_set_data_full (G_OBJECT (marker), "contact",
 288       g_object_ref (contact), g_object_unref);
 289
 290   g_hash_table_insert (priv->markers, g_object_ref (contact), marker);
 291
 292   map_view_contacts_update_label (marker);
 293
 294   clutter_actor_set_reactive (CLUTTER_ACTOR (marker), TRUE);
 295   g_signal_connect (marker, "button-release-event",
 296       G_CALLBACK (marker_clicked_cb), self);
 297
 298   champlain_marker_layer_add_marker (priv->layer, CHAMPLAIN_MARKER (marker));
 299
 300   DEBUG ("Create marker for %s", empathy_contact_get_id (contact));
 301
 302   tp_clear_object (&texture);
 303   return marker;
 304 }
 305
 306 static void
 307 contact_added (EmpathyMapView *self,
 308     EmpathyContact *contact)
 309 {
 310   g_signal_connect (contact, "notify::location",
 311       G_CALLBACK (map_view_contact_location_notify), self);
 312
 313   map_view_update_contact_position (self, contact);
 314 }
 315
 316 static gboolean
 317 map_view_key_press_cb (GtkWidget *widget,
 318     GdkEventKey *event,
 319     gpointer user_data)
 320 {
 321   if ((event->state & GDK_CONTROL_MASK && event->keyval == GDK_KEY_w)
 322       || event->keyval == GDK_KEY_Escape)
 323     {
 324       gtk_widget_destroy (widget);
 325       return TRUE;
 326     }
 327
 328   return FALSE;
 329 }
 330
 331 static gboolean
 332 map_view_tick (EmpathyMapView *self)
 333 {
 334   EmpathyMapViewPriv *priv = GET_PRIV (self);
 335   GList *marker, *l;
 336
 337   marker = champlain_marker_layer_get_markers (priv->layer);
 338
 339   for (l = marker; l != NULL; l = g_list_next (l))
 340     map_view_contacts_update_label (l->data);
 341
 342   g_list_free (marker);
 343   return TRUE;
 344 }
 345
 346 static void
 347 contact_removed (EmpathyMapView *self,
 348     EmpathyContact *contact)
 349 {
 350   EmpathyMapViewPriv *priv = GET_PRIV (self);
 351   ClutterActor *marker;
 352
 353   marker = g_hash_table_lookup (priv->markers, contact);
 354   if (marker == NULL)
 355     return;
 356
 357   clutter_actor_destroy (marker);
 358   g_hash_table_remove (priv->markers, contact);
 359 }
 360
 361 static void
 362 members_changed_cb (EmpathyContactList *list,
 363     EmpathyContact *contact,
 364     EmpathyContact *actor,
 365     guint reason,
 366     gchar *message,
 367     gboolean is_member,
 368     EmpathyMapView *self)
 369 {
 370   if (is_member)
 371     {
 372       contact_added (self, contact);
 373     }
 374   else
 375     {
 376       contact_removed (self, contact);
 377     }
 378 }
 379
 380 static GObject *
 381 empathy_map_view_constructor (GType type,
 382     guint n_construct_params,
 383     GObjectConstructParam *construct_params)
 384 {
 385   static GObject *window = NULL;
 386
 387   if (window != NULL)
 388     return window;
 389
 390   window = G_OBJECT_CLASS (empathy_map_view_parent_class)->constructor (
 391       type, n_construct_params, construct_params);
 392
 393   g_object_add_weak_pointer (window, (gpointer) &window);
 394
 395   return window;
 396 }
 397
 398 static void
 399 empathy_map_view_finalize (GObject *object)
 400 {
 401   EmpathyMapViewPriv *priv = GET_PRIV (object);
 402   GHashTableIter iter;
 403   gpointer contact;
 404
 405   g_source_remove (priv->timeout_id);
 406
 407   g_hash_table_iter_init (&iter, priv->markers);
 408   while (g_hash_table_iter_next (&iter, &contact, NULL))
 409     g_signal_handlers_disconnect_by_func (contact,
 410         map_view_contact_location_notify, object);
 411
 412   g_signal_handler_disconnect (priv->contact_list,
 413       priv->members_changed_id);
 414
 415   g_hash_table_destroy (priv->markers);
 416   g_object_unref (priv->contact_list);
 417   g_object_unref (priv->layer);
 418
 419   G_OBJECT_CLASS (empathy_map_view_parent_class)->finalize (object);
 420 }
 421
 422 static void
 423 empathy_map_view_class_init (EmpathyMapViewClass *klass)
 424 {
 425   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 426
 427   object_class->constructor = empathy_map_view_constructor;
 428   object_class->finalize = empathy_map_view_finalize;
 429
 430   g_type_class_add_private (object_class, sizeof (EmpathyMapViewPriv));
 431 }
 432
 433 static void
 434 empathy_map_view_init (EmpathyMapView *self)
 435 {
 436   EmpathyMapViewPriv *priv;
 437   GtkBuilder *gui;
 438   GtkWidget *sw;
 439   GtkWidget *embed;
 440   GtkWidget *throbber_holder;
 441   gchar *filename;
 442   GList *members, *l;
 443   GtkWidget *main_vbox;
 444
 445   priv = self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
 446       EMPATHY_TYPE_MAP_VIEW, EmpathyMapViewPriv);
 447
 448   gtk_window_set_title (GTK_WINDOW (self), _("Contact Map View"));
 449   gtk_window_set_role (GTK_WINDOW (self), "map_view");
 450   gtk_window_set_default_size (GTK_WINDOW (self), 512, 384);
 451   gtk_window_set_position (GTK_WINDOW (self), GTK_WIN_POS_CENTER);
 452
 453   /* Set up interface */
 454   filename = empathy_file_lookup ("empathy-map-view.ui", "src");
 455   gui = empathy_builder_get_file (filename,
 456      "main_vbox", &main_vbox,
 457      "zoom_in", &priv->zoom_in,
 458      "zoom_out", &priv->zoom_out,
 459      "map_scrolledwindow", &sw,
 460      "throbber", &throbber_holder,
 461      NULL);
 462   g_free (filename);
 463
 464   gtk_container_add (GTK_CONTAINER (self), main_vbox);
 465
 466   empathy_builder_connect (gui, self,
 467       "zoom_in", "clicked", map_view_zoom_in_cb,
 468       "zoom_out", "clicked", map_view_zoom_out_cb,
 469       "zoom_fit", "clicked", map_view_zoom_fit_cb,
 470       NULL);
 471
 472   g_signal_connect (self, "key-press-event",
 473       G_CALLBACK (map_view_key_press_cb), self);
 474
 475   g_object_unref (gui);
 476
 477   priv->contact_list = EMPATHY_CONTACT_LIST (
 478       empathy_contact_manager_dup_singleton ());
 479
 480   priv->members_changed_id = g_signal_connect (priv->contact_list,
 481       "members-changed", G_CALLBACK (members_changed_cb), self);
 482
 483   priv->throbber = gtk_spinner_new ();
 484   gtk_widget_set_size_request (priv->throbber, 16, 16);
 485   gtk_container_add (GTK_CONTAINER (throbber_holder), priv->throbber);
 486
 487   /* Set up map view */
 488   embed = gtk_champlain_embed_new ();
 489   priv->map_view = gtk_champlain_embed_get_view (GTK_CHAMPLAIN_EMBED (embed));
 490   g_object_set (G_OBJECT (priv->map_view),
 491      "zoom-level", 1,
 492      "kinetic-mode", TRUE,
 493      NULL);
 494   champlain_view_center_on (priv->map_view, 36, 0);
 495
 496   gtk_container_add (GTK_CONTAINER (sw), embed);
 497   gtk_widget_show_all (embed);
 498
 499   priv->layer = g_object_ref (champlain_marker_layer_new ());
 500   champlain_view_add_layer (priv->map_view, CHAMPLAIN_LAYER (priv->layer));
 501
 502   g_signal_connect (priv->map_view, "notify::state",
 503       G_CALLBACK (map_view_state_changed), self);
 504
 505   /* Set up contact list. */
 506   priv->markers = g_hash_table_new_full (NULL, NULL,
 507       (GDestroyNotify) g_object_unref, NULL);
 508
 509   members = empathy_contact_list_get_members (
 510       priv->contact_list);
 511   for (l = members; l != NULL; l = g_list_next (l))
 512     {
 513       contact_added (self, l->data);
 514       g_object_unref (l->data);
 515     }
 516   g_list_free (members);
 517
 518   /* Set up time updating loop */
 519   priv->timeout_id = g_timeout_add_seconds (5,
 520       (GSourceFunc) map_view_tick, self);
 521 }
 522
 523 GtkWidget *
 524 empathy_map_view_show (void)
 525 {
 526   GtkWidget *window;
 527
 528   window = g_object_new (EMPATHY_TYPE_MAP_VIEW, NULL);
 529   gtk_widget_show_all (window);
 530   empathy_window_present (GTK_WINDOW (window));
 531
 532   return window;
 533 }