gwacom: allow for listing of WacomOptions keys

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

2 files changed, 29 insertions, 0 deletions

diff --git a/src/gwacom/wacom-device.c b/src/gwacom/wacom-device.c
index 2f149fb..78be3fa 100644
--- a/src/gwacom/wacom-device.c
+++ b/src/gwacom/wacom-device.c
@@ -118,6 +118,27 @@ void wacom_options_set(WacomOptions *opts, const char *key, const char *value)
 	g_hash_table_replace(opts->ht, g_ascii_strdown(key, -1), g_strdup(value));
 }
 
+
+static void append_slist(gpointer key, gpointer value, gpointer user_data)
+{
+	GSList **list = user_data;
+	*list = g_slist_append(*list, g_strdup(key));
+}
+
+/**
+ * wacom_options_list_keys:
+ *
+ * Returns: (element-type utf8) (transfer full):
+ */
+GSList *wacom_options_list_keys(WacomOptions *opts)
+{
+	GSList *list = NULL;
+
+	g_hash_table_foreach(opts->ht, append_slist, &list);
+
+	return list;
+}
+
 static void
 wacom_options_finalize(GObject *gobject)
 {
diff --git a/src/gwacom/wacom-device.h b/src/gwacom/wacom-device.h
index 532b425..a40b263 100644
--- a/src/gwacom/wacom-device.h
+++ b/src/gwacom/wacom-device.h
@@ -68,6 +68,14 @@ const char *wacom_options_get(WacomOptions *opts, const char *key);
  */
 void wacom_options_set(WacomOptions *opts, const char *key, const char *value);
 
+/***
+ * wacom_options_list_keys:
+ *
+ * Returns: (element-type utf8) (transfer full): The List of keys in these
+ * options
+ */
+GSList *wacom_options_list_keys(WacomOptions *opts);
+
 
 #define WACOM_TYPE_DEVICE (wacom_device_get_type())
 G_DECLARE_FINAL_TYPE (WacomDevice, wacom_device, WACOM, DEVICE, GObject)