feat: add the control interface and notifyctl

The private interface carries what the spec cannot: close-all, invoke action
and clear history. notifyctl reads the published files for list and history,
because the files are the interface, and uses D-Bus only for the mutations.

1 files changed, 33 insertions, 2 deletions

diff --git a/internal/notify/control.go b/internal/notify/control.go
index 4783711..a42a14b 100644
--- a/internal/notify/control.go
+++ b/internal/notify/control.go
@@ -11,14 +11,45 @@
 
 package notify
 
-import "github.com/godbus/dbus/v5"
+import (
+	"errors"
 
-// control is the private interface notifyctl drives.
+	"github.com/godbus/dbus/v5"
+)
+
+// control is the private interface notifyctl drives. It exists because the
+// freedesktop spec has no close-all, no way to invoke an action, and no
+// history to clear.
 type control struct {
 	svc *Service
 }
 
+// CloseAll dismisses every live notification, reason 2.
 func (c *control) CloseAll() *dbus.Error {
 	c.svc.store.DismissAll()
 	return nil
 }
+
+// Dismiss closes one live notification, reason 2, which is what a click on the
+// X means.
+func (c *control) Dismiss(id uint32) *dbus.Error {
+	c.svc.stopTimer(id)
+	c.svc.store.Dismiss(id, 2)
+	return nil
+}
+
+// InvokeAction emits ActionInvoked for a live notification. An inert entry has
+// no client left, so it is an error rather than a silent no-op.
+func (c *control) InvokeAction(id uint32, key string) *dbus.Error {
+	if !c.svc.store.Actionable(id) {
+		return dbus.MakeFailedError(errors.New("notification is no longer live"))
+	}
+	c.svc.conn.Emit(dbus.ObjectPath(objPath), iface+".ActionInvoked", id, key)
+	return nil
+}
+
+// ClearHistory empties the history ring.
+func (c *control) ClearHistory() *dbus.Error {
+	c.svc.store.ClearHistory()
+	return nil
+}