Adding a property modified signal to the indicator object

2 files changed, 18 insertions, 2 deletions

diff --git a/libindicate/indicator.c b/libindicate/indicator.c
index f1eb6f3..94af726 100644
--- a/libindicate/indicator.c
+++ b/libindicate/indicator.c
@@ -9,6 +9,7 @@ enum {
 	HIDE,
 	SHOW,
 	USER_DISPLAY,
+	MODIFIED,
 	LAST_SIGNAL
 };
 
@@ -68,6 +69,13 @@ indicate_indicator_class_init (IndicateIndicatorClass * class)
 	                                     NULL, NULL,
 	                                     g_cclosure_marshal_VOID__VOID,
 	                                     G_TYPE_NONE, 0);
+	signals[MODIFIED] = g_signal_new(INDICATE_INDICATOR_SIGNAL_MODIFIED,
+	                                     G_TYPE_FROM_CLASS(class),
+	                                     G_SIGNAL_RUN_LAST,
+	                                     G_STRUCT_OFFSET(IndicateIndicatorClass, modified),
+	                                     NULL, NULL,
+	                                     g_cclosure_marshal_VOID__STRING,
+	                                     G_TYPE_NONE, 1, G_TYPE_STRING);
 
 	class->get_type = NULL;
 	class->set_property = set_property;
@@ -235,8 +243,14 @@ set_property (IndicateIndicator * indicator, const gchar * key, const gchar * da
 
 	IndicateIndicatorPrivate * priv = INDICATE_INDICATOR_GET_PRIVATE(indicator);
 
-	g_hash_table_insert(priv->properties, g_strdup(key), g_strdup(data));
-	// TODO: Signal
+	gchar * current = g_hash_table_lookup(priv->properties, key);
+	if (current == NULL || strcmp(current, data)) {
+		/* If the value has changed or there is no value */
+		gchar * newkey = g_strdup(key);
+		g_hash_table_insert(priv->properties, newkey, g_strdup(data));
+		g_signal_emit(indicator, signals[MODIFIED], 0, newkey, TRUE);
+	}
+
 	return;
 }
 
diff --git a/libindicate/indicator.h b/libindicate/indicator.h
index 3fd7afd..8823757 100644
--- a/libindicate/indicator.h
+++ b/libindicate/indicator.h
@@ -21,6 +21,7 @@ G_BEGIN_DECLS
 #define INDICATE_INDICATOR_SIGNAL_HIDE  "hide"
 #define INDICATE_INDICATOR_SIGNAL_SHOW  "show"
 #define INDICATE_INDICATOR_SIGNAL_DISPLAY  "user-display"
+#define INDICATE_INDICATOR_SIGNAL_MODIFIED  "modified"
 
 typedef struct _IndicateIndicator IndicateIndicator;
 typedef struct _IndicateIndicatorClass IndicateIndicatorClass;
@@ -35,6 +36,7 @@ struct _IndicateIndicatorClass {
 	void (*hide) (IndicateIndicator * indicator, gpointer data);
 	void (*show) (IndicateIndicator * indicator, gpointer data);
 	void (*user_display) (IndicateIndicator * indicator, gpointer data);
+	void (*modified) (IndicateIndicator * indicator, gchar * property, gpointer data);
 
 	const gchar * (*get_type) (IndicateIndicator * indicator);
 	void (*set_property) (IndicateIndicator * indicator, const gchar * key, const gchar * data);