diff options
Diffstat (limited to 'e-util/e-misc-utils.c')
| -rw-r--r-- | e-util/e-misc-utils.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/e-util/e-misc-utils.c b/e-util/e-misc-utils.c index f7be7af5ac..510dad39b2 100644 --- a/e-util/e-misc-utils.c +++ b/e-util/e-misc-utils.c @@ -2394,6 +2394,16 @@ e_signal_connect_notify_cb (gpointer instance, } } +/** + * e_signal_connect_notify: + * + * This installs a special handler in front of @c_handler, which will + * call the @c_handler only if the property value changed since the last + * time it was checked. Due to this, these handlers cannot be disconnected + * by by any of the g_signal_handlers_* functions, but only with the returned + * handler ID. A convenient e_signal_disconnect_notify_handler() was added + * to make it easier. + **/ gulong e_signal_connect_notify (gpointer instance, const gchar *notify_name, @@ -2414,6 +2424,16 @@ e_signal_connect_notify (gpointer instance, 0); } +/** + * e_signal_connect_notify_after: + * + * This installs a special handler in front of @c_handler, which will + * call the @c_handler only if the property value changed since the last + * time it was checked. Due to this, these handlers cannot be disconnected + * by by any of the g_signal_handlers_* functions, but only with the returned + * handler ID. A convenient e_signal_disconnect_notify_handler() was added + * to make it easier. + **/ gulong e_signal_connect_notify_after (gpointer instance, const gchar *notify_name, @@ -2434,6 +2454,16 @@ e_signal_connect_notify_after (gpointer instance, G_CONNECT_AFTER); } +/** + * e_signal_connect_notify_swapped: + * + * This installs a special handler in front of @c_handler, which will + * call the @c_handler only if the property value changed since the last + * time it was checked. Due to this, these handlers cannot be disconnected + * by by any of the g_signal_handlers_* functions, but only with the returned + * handler ID. A convenient e_signal_disconnect_notify_handler() was added + * to make it easier. + **/ gulong e_signal_connect_notify_swapped (gpointer instance, const gchar *notify_name, @@ -2454,6 +2484,16 @@ e_signal_connect_notify_swapped (gpointer instance, 0); } +/** + * e_signal_connect_notify_object: + * + * This installs a special handler in front of @c_handler, which will + * call the @c_handler only if the property value changed since the last + * time it was checked. Due to this, these handlers cannot be disconnected + * by by any of the g_signal_handlers_* functions, but only with the returned + * handler ID. A convenient e_signal_disconnect_notify_handler() was added + * to make it easier. + **/ gulong e_signal_connect_notify_object (gpointer instance, const gchar *notify_name, @@ -2492,3 +2532,28 @@ e_signal_connect_notify_object (gpointer instance, closure, connect_flags & G_CONNECT_AFTER); } + +/** + * e_signal_disconnect_notify_handler: + * + * Convenient handler disconnect function to be used with + * returned handler IDs from: + * e_signal_connect_notify() + * e_signal_connect_notify_after() + * e_signal_connect_notify_swapped() + * e_signal_connect_notify_object() + * but not necessarily only with these functions. + **/ +void +e_signal_disconnect_notify_handler (gpointer instance, + gulong *handler_id) +{ + g_return_if_fail (instance != NULL); + g_return_if_fail (handler_id != NULL); + + if (!*handler_id) + return; + + g_signal_handler_disconnect (instance, *handler_id); + *handler_id = 0; +} |