megaphone/src/megaphone-applet.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2007 Raphaël Slinckx <raphael@slinckx.net>
   4  * Copyright (C) 2007 Collabora Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  *
  20  * Authors: Raphaël Slinckx <raphael@slinckx.net>
  21  *          Xavier Claessens <xclaesse@gmail.com>
  22  */
  23
  24 #include "config.h"
  25
  26 #include <string.h>
  27
  28 #include <glib/gi18n.h>
  29 #include <gtk/gtk.h>
  30 #include <bonobo/bonobo-ui-component.h>
  31 #include <panel-2.0/panel-applet-gconf.h>
  32 #include <gconf/gconf-client.h>
  33 #include <libgnomevfs/gnome-vfs-utils.h>
  34
  35 #include <libmissioncontrol/mission-control.h>
  36 #include <libmissioncontrol/mc-account.h>
  37
  38 #include <libempathy/empathy-contact-factory.h>
  39 #include <libempathy/empathy-contact.h>
  40 #include <libempathy/empathy-contact-list.h>
  41 #include <libempathy/empathy-contact-manager.h>
  42 #include <libempathy/empathy-utils.h>
  43
  44 #include <libempathy-gtk/empathy-contact-list-view.h>
  45 #include <libempathy-gtk/empathy-contact-list-store.h>
  46 #include <libempathy-gtk/empathy-contact-dialogs.h>
  47 #include <libempathy-gtk/empathy-ui-utils.h>
  48
  49 #include "megaphone-applet.h"
  50
  51 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
  52 #include <libempathy/empathy-debug.h>
  53
  54 #define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), MEGAPHONE_TYPE_APPLET, MegaphoneAppletPriv))
  55
  56 typedef struct _MegaphoneAppletPriv MegaphoneAppletPriv;
  57
  58 struct _MegaphoneAppletPriv {
  59         EmpathyContactFactory *factory;
  60         GtkWidget             *image;
  61         gint                   image_size;
  62         EmpathyContact        *contact;
  63         GConfClient           *gconf;
  64         guint                  gconf_cnxn;
  65 };
  66
  67 static void megaphone_applet_finalize                  (GObject            *object);
  68 static void megaphone_applet_size_allocate_cb          (GtkWidget          *widget,
  69                                                         GtkAllocation      *allocation,
  70                                                         MegaphoneApplet    *applet);
  71 static gboolean megaphone_applet_button_press_event_cb (GtkWidget          *widget,
  72                                                         GdkEventButton     *event,
  73                                                         MegaphoneApplet    *applet);
  74 static void megaphone_applet_information_cb            (BonoboUIComponent  *uic,
  75                                                         MegaphoneApplet    *applet,
  76                                                         const gchar        *verb_name);
  77 static void megaphone_applet_preferences_cb            (BonoboUIComponent  *uic,
  78                                                         MegaphoneApplet    *applet,
  79                                                         const gchar        *verb_name);
  80 static void megaphone_applet_about_cb                  (BonoboUIComponent  *uic,
  81                                                         MegaphoneApplet    *applet,
  82                                                         const gchar        *verb_name);
  83
  84 G_DEFINE_TYPE(MegaphoneApplet, megaphone_applet, PANEL_TYPE_APPLET)
  85
  86 static const BonoboUIVerb megaphone_applet_menu_verbs [] = {
  87         BONOBO_UI_UNSAFE_VERB ("information", megaphone_applet_information_cb),
  88         BONOBO_UI_UNSAFE_VERB ("preferences", megaphone_applet_preferences_cb),
  89         BONOBO_UI_UNSAFE_VERB ("about",       megaphone_applet_about_cb),
  90         BONOBO_UI_VERB_END
  91 };
  92
  93 static const char* authors[] = {
  94         "Raphaël Slinckx <raphael@slinckx.net>",
  95         "Xavier Claessens <xclaesse@gmail.com>",
  96         NULL
  97 };
  98
  99 static void
 100 megaphone_applet_class_init (MegaphoneAppletClass *class)
 101 {
 102         GObjectClass *object_class;
 103
 104         object_class = G_OBJECT_CLASS (class);
 105
 106         object_class->finalize = megaphone_applet_finalize;
 107
 108         g_type_class_add_private (object_class, sizeof (MegaphoneAppletPriv));
 109 }
 110
 111 static void
 112 megaphone_applet_init (MegaphoneApplet *applet)
 113 {
 114         MegaphoneAppletPriv *priv = GET_PRIV (applet);
 115
 116         priv->factory = empathy_contact_factory_new ();
 117         priv->gconf = gconf_client_get_default ();
 118
 119         /* Image holds the contact avatar */
 120         priv->image = gtk_image_new ();
 121         gtk_widget_show (priv->image);
 122         gtk_container_add (GTK_CONTAINER (applet), priv->image);
 123
 124         /* We want transparency */
 125         panel_applet_set_flags (PANEL_APPLET (applet), PANEL_APPLET_EXPAND_MINOR);
 126         panel_applet_set_background_widget (PANEL_APPLET (applet), GTK_WIDGET (applet));
 127
 128         /* Listen for clicks on the applet to dispatch a channel */
 129         g_signal_connect (applet, "button-press-event",
 130                           G_CALLBACK (megaphone_applet_button_press_event_cb),
 131                           applet);
 132
 133         /* Allow to resize our avatar when needed */
 134         g_signal_connect (applet, "size-allocate",
 135                           G_CALLBACK (megaphone_applet_size_allocate_cb),
 136                           applet);
 137 }
 138
 139 static void
 140 megaphone_applet_finalize (GObject *object)
 141 {
 142         MegaphoneAppletPriv *priv = GET_PRIV (object);
 143
 144         if (priv->contact) {
 145                 g_object_unref (priv->contact);
 146         }
 147         g_object_unref (priv->factory);
 148
 149         if (priv->gconf_cnxn != 0) {
 150                 gconf_client_notify_remove (priv->gconf, priv->gconf_cnxn);
 151         }
 152         g_object_unref (priv->gconf);
 153
 154         G_OBJECT_CLASS (megaphone_applet_parent_class)->finalize (object);
 155 }
 156
 157 static void
 158 megaphone_applet_update_icon (MegaphoneApplet *applet)
 159 {
 160         MegaphoneAppletPriv *priv = GET_PRIV (applet);
 161         EmpathyAvatar       *avatar = NULL;
 162         GdkPixbuf           *avatar_pixbuf;
 163
 164         if (priv->contact) {
 165                 avatar = empathy_contact_get_avatar (priv->contact);
 166         } else {
 167                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->image),
 168                                               GTK_STOCK_PREFERENCES,
 169                                               GTK_ICON_SIZE_MENU);
 170                 return;
 171         }
 172
 173         if (!avatar) {
 174                 gchar *avatar_token;
 175
 176                 /* Try to take avatar from cache */
 177                 avatar_token = panel_applet_gconf_get_string (PANEL_APPLET (applet),
 178                                                               "avatar_token",
 179                                                               NULL);
 180                 if (!G_STR_EMPTY (avatar_token)) {
 181                         avatar = empathy_avatar_new_from_cache (avatar_token);
 182                 }
 183                 g_free (avatar_token);
 184         } else {
 185                 empathy_avatar_ref (avatar);
 186         }
 187
 188         if (avatar) {
 189                 avatar_pixbuf = empathy_pixbuf_from_avatar_scaled (avatar,
 190                                                                    priv->image_size - 2,
 191                                                                    priv->image_size - 2);
 192                 empathy_avatar_unref (avatar);
 193         } else {
 194                 GtkIconTheme *icon_theme;
 195
 196                 /* Load the default icon when no avatar is found */
 197                 icon_theme = gtk_icon_theme_get_default ();
 198                 avatar_pixbuf = gtk_icon_theme_load_icon (icon_theme,
 199                                                           "stock_contact",
 200                                                           priv->image_size - 2,
 201                                                           0, NULL);
 202         }
 203
 204         /* Now some desaturation if the contact is offline */
 205         if (!empathy_contact_is_online (priv->contact)) {
 206                 GdkPixbuf *offline_avatar;
 207
 208                 offline_avatar = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE,
 209                                                  8,
 210                                                  gdk_pixbuf_get_height (avatar_pixbuf),
 211                                                  gdk_pixbuf_get_width (avatar_pixbuf));
 212                 gdk_pixbuf_saturate_and_pixelate (avatar_pixbuf,
 213                                                   offline_avatar,
 214                                                   0.0,
 215                                                   TRUE);
 216                 g_object_unref (avatar_pixbuf);
 217                 avatar_pixbuf = offline_avatar;
 218         }
 219
 220         gtk_image_set_from_pixbuf (GTK_IMAGE (priv->image), avatar_pixbuf);
 221         g_object_unref (avatar_pixbuf);
 222 }
 223
 224 static void
 225 megaphone_applet_update_contact (MegaphoneApplet *applet)
 226 {
 227         MegaphoneAppletPriv *priv = GET_PRIV (applet);
 228         const gchar         *name;
 229         const gchar         *status;
 230         gchar               *tip;
 231         const gchar         *avatar_token = NULL;
 232
 233         if (priv->contact) {
 234                 EmpathyAvatar *avatar;
 235
 236                 avatar = empathy_contact_get_avatar (priv->contact);
 237                 if (avatar) {
 238                         avatar_token = avatar->token;
 239                 }
 240         }
 241
 242         if (avatar_token) {
 243                 panel_applet_gconf_set_string (PANEL_APPLET (applet),
 244                                                "avatar_token", avatar_token,
 245                                                NULL);
 246         }
 247
 248         megaphone_applet_update_icon (applet);
 249
 250         if (priv->contact ) {
 251                 name = empathy_contact_get_name (priv->contact);
 252                 status = empathy_contact_get_status (priv->contact);
 253                 tip = g_strdup_printf ("<b>%s</b>: %s", name, status);
 254                 gtk_widget_set_tooltip_markup (GTK_WIDGET (applet), tip);
 255                 g_free (tip);
 256         } else {
 257                 gtk_widget_set_tooltip_markup (GTK_WIDGET (applet),
 258                                                "Please configure a contact.");
 259         }
 260
 261 }
 262
 263 static void
 264 megaphone_applet_set_contact (MegaphoneApplet *applet,
 265                               const gchar     *str)
 266 {
 267         MegaphoneAppletPriv *priv = GET_PRIV (applet);
 268         McAccount           *account = NULL;
 269         gchar              **strv = NULL;
 270
 271         DEBUG ("Setting new contact %s", str);
 272
 273         /* Release old contact, if any */
 274         if (priv->contact) {
 275                 g_signal_handlers_disconnect_by_func (priv->contact,
 276                                                       megaphone_applet_update_contact,
 277                                                       applet);
 278                 g_object_unref (priv->contact),
 279                 priv->contact = NULL;
 280         }
 281
 282         /* Lookup the new contact */
 283         if (str) {
 284                 strv = g_strsplit (str, "/", 2);
 285                 account = mc_account_lookup (strv[0]);
 286         }
 287         if (account) {
 288                 priv->contact = empathy_contact_factory_get_from_id (priv->factory,
 289                                                                      account,
 290                                                                      strv[1]);
 291                 g_object_unref (account);
 292         }
 293         g_strfreev (strv);
 294
 295         /* Take hold of the new contact if any */
 296         if (priv->contact) {
 297                 /* Listen for updates on the contact, and force a first update */
 298                 g_signal_connect_swapped (priv->contact, "notify",
 299                                           G_CALLBACK (megaphone_applet_update_contact),
 300                                           applet);
 301         }
 302
 303         megaphone_applet_update_contact (applet);
 304 }
 305
 306 static void
 307 megaphone_applet_preferences_response_cb (GtkWidget       *dialog,
 308                                           gint             response,
 309                                           MegaphoneApplet *applet)
 310 {
 311         if (response == GTK_RESPONSE_ACCEPT) {
 312                 EmpathyContactListView *contact_list;
 313                 EmpathyContact         *contact;
 314
 315                 /* Retrieve the selected contact, if any and set it up in gconf.
 316                  * GConf will notify us from the change and we will adjust ourselves */
 317                 contact_list = g_object_get_data (G_OBJECT (dialog), "contact-list");
 318                 contact = empathy_contact_list_view_get_selected (contact_list);
 319                 if (contact) {
 320                         McAccount   *account;
 321                         const gchar *account_id;
 322                         const gchar *contact_id;
 323                         gchar       *str;
 324
 325                         account = empathy_contact_get_account (contact);
 326                         account_id = mc_account_get_unique_name (account);
 327                         contact_id = empathy_contact_get_id (contact);
 328
 329                         str = g_strconcat (account_id, "/", contact_id, NULL);
 330                         panel_applet_gconf_set_string (PANEL_APPLET (applet),
 331                                                        "avatar_token", "",
 332                                                        NULL);
 333                         panel_applet_gconf_set_string (PANEL_APPLET (applet),
 334                                                        "contact_id", str,
 335                                                        NULL);
 336                         g_free (str);
 337                 }
 338         }
 339         gtk_widget_destroy (dialog);
 340 }
 341
 342 static void
 343 megaphone_applet_show_preferences (MegaphoneApplet *applet)
 344 {
 345         GtkWidget               *dialog;
 346         GtkWidget               *scroll;
 347         EmpathyContactListView  *contact_list;
 348         EmpathyContactListStore *contact_store;
 349         EmpathyContactManager   *contact_manager;
 350
 351         dialog = gtk_dialog_new_with_buttons ("Select contact...",
 352                                               NULL, 0,
 353                                               GTK_STOCK_CANCEL,
 354                                               GTK_RESPONSE_REJECT,
 355                                               GTK_STOCK_OK,
 356                                               GTK_RESPONSE_ACCEPT,
 357                                               NULL);
 358
 359         /* Show all contacts, even offline and sort alphabetically */
 360         contact_manager = empathy_contact_manager_new ();
 361         contact_store = empathy_contact_list_store_new (EMPATHY_CONTACT_LIST (contact_manager));
 362         g_object_set (contact_store,
 363                       "is-compact", TRUE,
 364                       "show-avatars", TRUE,
 365                       "show-offline", TRUE,
 366                       "sort-criterium", EMPATHY_CONTACT_LIST_STORE_SORT_NAME,
 367                       NULL);
 368         contact_list = empathy_contact_list_view_new (contact_store,
 369                                                       EMPATHY_CONTACT_LIST_FEATURE_NONE,
 370                                                       EMPATHY_CONTACT_FEATURE_NONE);
 371         g_object_unref (contact_manager);
 372         g_object_unref (contact_store);
 373         gtk_widget_show (GTK_WIDGET (contact_list));
 374
 375         gtk_window_set_default_size (GTK_WINDOW (dialog), 300, 500);
 376         scroll = gtk_scrolled_window_new (NULL, NULL);
 377         gtk_container_add (GTK_CONTAINER (scroll), GTK_WIDGET (contact_list));
 378         gtk_container_add (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox), scroll);
 379         gtk_widget_show (scroll);
 380
 381         g_object_set_data (G_OBJECT (dialog), "contact-list", contact_list);
 382
 383         g_signal_connect (dialog, "response",
 384                           G_CALLBACK (megaphone_applet_preferences_response_cb),
 385                           applet);
 386
 387         gtk_widget_show (dialog);
 388 }
 389
 390 static void
 391 megaphone_applet_information_cb (BonoboUIComponent *uic,
 392                                  MegaphoneApplet   *applet,
 393                                  const gchar       *verb_name)
 394 {
 395         MegaphoneAppletPriv *priv = GET_PRIV (applet);
 396
 397         /* FIXME: We should grey out the menu item if there are no available contact */
 398         if (priv->contact) {
 399                 empathy_contact_information_dialog_show (priv->contact, NULL, FALSE, FALSE);
 400         }
 401 }
 402
 403 static void
 404 megaphone_applet_preferences_cb (BonoboUIComponent *uic,
 405                                  MegaphoneApplet   *applet,
 406                                  const gchar       *verb_name)
 407 {
 408         megaphone_applet_show_preferences (applet);
 409 }
 410
 411 static void
 412 megaphone_applet_about_cb (BonoboUIComponent *uic,
 413                            MegaphoneApplet   *applet,
 414                            const gchar       *verb_name)
 415 {
 416         gtk_show_about_dialog (NULL,
 417                                "name", "Megaphone",
 418                                "version", PACKAGE_VERSION,
 419                                "copyright", "Raphaël Slinckx 2007\nCollabora Ltd 2007",
 420                                "comments", _("Talk!"),
 421                                "authors", authors,
 422                                "logo-icon-name", "stock_people",
 423                                NULL);
 424 }
 425
 426 static gboolean
 427 megaphone_applet_button_press_event_cb (GtkWidget       *widget,
 428                                         GdkEventButton  *event,
 429                                         MegaphoneApplet *applet)
 430 {
 431         MegaphoneAppletPriv *priv = GET_PRIV (applet);
 432         MissionControl      *mc;
 433
 434         /* Only react on left-clicks */
 435         if (event->button != 1 || event->type != GDK_BUTTON_PRESS) {
 436                 return FALSE;
 437         }
 438
 439         /* If the contact is unavailable we display the preferences dialog */
 440         if (priv->contact == NULL) {
 441                 megaphone_applet_show_preferences (applet);
 442                 return TRUE;
 443         }
 444
 445         DEBUG ("Requesting text channel for contact %s (%d)",
 446                 empathy_contact_get_id (priv->contact),
 447                 empathy_contact_get_handle (priv->contact));
 448
 449         mc = empathy_mission_control_new ();
 450         mission_control_request_channel (mc,
 451                                          empathy_contact_get_account (priv->contact),
 452                                          TP_IFACE_CHANNEL_TYPE_TEXT,
 453                                          empathy_contact_get_handle (priv->contact),
 454                                          TP_HANDLE_TYPE_CONTACT,
 455                                          NULL, NULL);
 456         g_object_unref (mc);
 457
 458         return TRUE;
 459 }
 460
 461 static void
 462 megaphone_applet_size_allocate_cb (GtkWidget       *widget,
 463                                    GtkAllocation   *allocation,
 464                                    MegaphoneApplet *applet)
 465 {
 466         MegaphoneAppletPriv *priv = GET_PRIV (applet);
 467         gint                 size;
 468         PanelAppletOrient    orient;
 469
 470         orient = panel_applet_get_orient (PANEL_APPLET (widget));
 471         if (orient == PANEL_APPLET_ORIENT_LEFT ||
 472             orient == PANEL_APPLET_ORIENT_RIGHT) {
 473                 size = allocation->width;
 474         } else {
 475                 size = allocation->height;
 476         }
 477
 478         if (size != priv->image_size) {
 479                 priv->image_size = size;
 480                 megaphone_applet_update_icon (applet);
 481         }
 482 }
 483
 484 static void
 485 megaphone_applet_gconf_notify_cb (GConfClient     *client,
 486                                   guint            cnxn_id,
 487                                   GConfEntry      *entry,
 488                                   MegaphoneApplet *applet)
 489 {
 490         const gchar *key;
 491         GConfValue  *value;
 492
 493         key = gconf_entry_get_key (entry);
 494         value = gconf_entry_get_value (entry);
 495         DEBUG ("GConf notification for key '%s'", key);
 496
 497         if (value && g_str_has_suffix (key, "/contact_id")) {
 498                 megaphone_applet_set_contact (applet,
 499                                               gconf_value_get_string (value));
 500         }
 501 }
 502
 503 static gboolean
 504 megaphone_applet_factory (PanelApplet *applet,
 505                           const gchar *iid,
 506                           gpointer     data)
 507 {
 508         MegaphoneAppletPriv *priv = GET_PRIV (applet);
 509         gchar               *pref_dir;
 510         gchar               *contact_id;
 511
 512         /* Ensure it's us! */
 513         if (strcmp (iid, "OAFIID:GNOME_Megaphone_Applet") != 0) {
 514                 return FALSE;
 515         }
 516
 517         DEBUG ("Starting up new instance!");
 518
 519         /* Set up the right-click menu */
 520         panel_applet_setup_menu_from_file (applet,
 521                                            PKGDATADIR,
 522                                            "GNOME_Megaphone_Applet.xml",
 523                                            NULL,
 524                                            megaphone_applet_menu_verbs,
 525                                            applet);
 526
 527         /* Define the schema to be used for each applet instance's preferences */
 528         panel_applet_add_preferences (applet,
 529                                       "/schemas/apps/megaphone-applet/prefs",
 530                                       NULL);
 531
 532         /* We watch the preferences directory */
 533         pref_dir = panel_applet_gconf_get_full_key (applet, "");
 534         pref_dir[strlen (pref_dir)-1] = '\0';
 535         gconf_client_add_dir (priv->gconf, pref_dir,
 536                               GCONF_CLIENT_PRELOAD_ONELEVEL,
 537                               NULL);
 538         gconf_client_notify_add (priv->gconf, pref_dir,
 539                                  (GConfClientNotifyFunc) megaphone_applet_gconf_notify_cb,
 540                                  applet,
 541                                  NULL, NULL);
 542         g_free (pref_dir);
 543
 544         /* Initial setup with the pre-existing gconf key, or contact_id=NULL if no previous pref */
 545         contact_id = panel_applet_gconf_get_string (PANEL_APPLET (applet), "contact_id", NULL);
 546         megaphone_applet_set_contact (MEGAPHONE_APPLET (applet), contact_id);
 547         g_free (contact_id);
 548
 549         /* Let's go! */
 550         gtk_widget_show (GTK_WIDGET (applet));
 551
 552         return TRUE;
 553 }
 554
 555 PANEL_APPLET_BONOBO_FACTORY ("OAFIID:GNOME_Megaphone_Applet_Factory",
 556                              MEGAPHONE_TYPE_APPLET,
 557                              "Megaphone", PACKAGE_VERSION,
 558                              megaphone_applet_factory,
 559                              NULL);
 560