From 5fb6ec66b452637bb9bd0e8df7f2463a1f2c444b Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Mon, 18 Nov 2019 13:22:44 +0900
Subject: [PATCH] ctl: card: add virtual object to handle event for element

---
 src/ctl/card.c     |  2 +-
 src/ctl/card.h     | 11 +++++++++++
 tests/alsactl-card |  1 +
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/ctl/card.c b/src/ctl/card.c
index 8ffcac3..d2cf21d 100644
--- a/src/ctl/card.c
+++ b/src/ctl/card.c
@@ -114,7 +114,7 @@ static void alsactl_card_class_init(ALSACtlCardClass *klass)
         g_signal_new("handle-elem-event",
                      G_OBJECT_CLASS_TYPE(klass),
                      G_SIGNAL_RUN_LAST,
-                     0,
+                     G_STRUCT_OFFSET(ALSACtlCardClass, handle_elem_event),
                      NULL, NULL,
                      alsactl_sigs_marshal_VOID__BOXED_FLAGS,
                      G_TYPE_NONE, 2, ALSACTL_TYPE_ELEM_ID,
diff --git a/src/ctl/card.h b/src/ctl/card.h
index 55b0ce8..eb48633 100644
--- a/src/ctl/card.h
+++ b/src/ctl/card.h
@@ -47,6 +47,17 @@ struct _ALSACtlCard {
 
 struct _ALSACtlCardClass {
     GObjectClass parent_class;
+
+    /**
+     * ALSACtlCardClass::handle_elem_event:
+     * @self: A #ALSACtlCard.
+     * @elem_id: (transfer none): A #ALSACtlElemId.
+     * @events: A set of #ALSACtlEventMaskFlag.
+     *
+     * When event occurs for any element, this signal is emit.
+     */
+    void (*handle_elem_event)(ALSACtlCard *self, const ALSACtlElemId *elem_id,
+                              ALSACtlEventMaskFlag events);
 };
 
 GType alsactl_card_get_type() G_GNUC_CONST;
diff --git a/tests/alsactl-card b/tests/alsactl-card
index 3cb633c..3b7d42a 100644
--- a/tests/alsactl-card
+++ b/tests/alsactl-card
@@ -28,6 +28,7 @@ methods = (
     'replace_elems',
     'remove_elems',
     'create_source',
+    'do_handle_elem_event',
 )
 signals = (
     'handle-elem-event',
-- 
2.47.3