1. example-watch-book

   1 #include "example.h"
   2 #include "libsoylent/soylent.h"
   3 
   4 #include <glib.h>
   5 
   6 static void person_added (SlBook *book, SlPerson *person, gboolean on_purpose, gpointer user_data);
   7 static void person_removed (SlBook *book, SlPerson *person, gboolean on_purpose, gpointer user_data);
   8 static void person_attribute_added (SlBook *book, SlPerson *person, SlAttribute *attr, gboolean on_purpose, gpointer user_data);
   9 static void person_attribute_removed (SlBook *book, SlPerson *person, SlAttribute *attr, gboolean on_purpose, gpointer user_data);
  10 static void person_attribute_modified (SlBook *book, SlPerson *person, SlAttribute *attr, GList *old_values, gboolean on_purpose, gpointer user_data);
  11 
  12 static void person_added (SlBook *book, SlPerson *person, gboolean on_purpose,
  13                           gpointer user_data)
  14 {
  15   g_print ("person \"%s\" added\n", sl_person_get_nick (person));
  16 }
  17 
  18 static void person_removed (SlBook *book, SlPerson *person, gboolean on_purpose,
  19                             gpointer user_data)
  20 {
  21   g_print ("person \"%s\" removed\n", sl_person_get_nick (person));
  22 }
  23 
  24 static void person_attribute_added (SlBook *book, SlPerson *person,
  25   SlAttribute *attr, gboolean on_purpose, gpointer user_data)
  26 {
  27   g_print ("attribute \"%s\" added to \"%s\"\n", sl_attribute_get_name (attr), sl_person_get_nick (person));
  28 }
  29 
  30 static void person_attribute_removed (SlBook *book, SlPerson *person,
  31   SlAttribute *attr, gboolean on_purpose, gpointer user_data)
  32 {
  33   g_print ("attribute \"%s\" removed from \"%s\"\n", sl_attribute_get_name (attr), sl_person_get_nick (person));
  34 }
  35 
  36 static void person_attribute_modified (SlBook *book, SlPerson *person,
  37   SlAttribute *attr, GList *old_values, gboolean on_purpose, gpointer user_data)
  38 {
  39   g_print ("attribute \"%s\" from \"%s\" modified\n", sl_attribute_get_name (attr), sl_person_get_nick (person));
  40 }
  41 
  42 void
  43 watch_book (void)
  44 {
  45   GError *error = NULL;
  46   
  47   /* initialize libsoylent */
  48   if (!sl_init (&error))
  49     {
  50       example_error (error);
  51     }
  52   
  53   g_object_connect (SL_BOOK_DEFAULT,
  54     "signal::person-added", person_added, NULL,
  55     "signal::person-removed", person_removed, NULL,
  56     "signal::person-attribute-added", person_attribute_added, NULL,
  57     "signal::person-attribute-removed", person_attribute_removed, NULL,
  58     "signal::person-attribute-modified", person_attribute_modified, NULL,
  59     NULL);
  60   
  61   GMainLoop *main_loop = g_main_loop_new (NULL, FALSE);
  62   g_main_loop_run (main_loop);
  63   
  64   sl_cleanup ();
  65 }