Initial version

bus/bus.go

@@ -0,0 +1,76 @@
+package bus
+
+import (
+	"time"
+
+	"github.com/godbus/dbus/v5"
+)
+
+type NotifyBus struct {
+	conn *dbus.Conn
+}
+
+type BusNotification struct {
+	ID      uint32
+	Summary string
+	Body    string
+	Timeout time.Duration
+}
+
+type NotifyServerInfo struct {
+	Name        string
+	Vendor      string
+	Version     string
+	SpecVersion string
+}
+
+func NewNotifyBus() (*NotifyBus, error) {
+	conn, err := dbus.ConnectSessionBus()
+	if err != nil {
+		return nil, err
+	}
+	return &NotifyBus{conn: conn}, nil
+}
+
+func (n *NotifyBus) Close() {
+	n.conn.Close()
+}
+
+func (n *NotifyBus) ServerInfo() (*NotifyServerInfo, error) {
+	obj := n.conn.Object("org.freedesktop.Notifications", "/org/freedesktop/Notifications")
+	call := obj.Call(
+		"org.freedesktop.Notifications.GetServerInformation", // Method
+		0, // Flags
+	)
+	if call.Err != nil {
+		return nil, call.Err
+	}
+
+	srvInfo := &NotifyServerInfo{}
+	call.Store(&srvInfo.Name, &srvInfo.Vendor, &srvInfo.Version, &srvInfo.SpecVersion)
+	return srvInfo, nil
+}
+
+func (n *NotifyBus) Notify(notification BusNotification) (uint32, error) {
+	obj := n.conn.Object("org.freedesktop.Notifications", "/org/freedesktop/Notifications")
+	var ret uint32
+	call := obj.Call(
+		"org.freedesktop.Notifications.Notify", // Method
+		0,                                      // Flags
+		"alerttonotify",                        // App name
+		notification.ID,                        // Notification ID
+		"",                                     // Icon
+		notification.Summary,                   // Summary
+		notification.Body,                      // Body
+		[]string{},                             // Actions
+		map[string]dbus.Variant{},              // Hints
+		int32(notification.Timeout.Milliseconds()), // Timeout
+	)
+	if call.Err != nil {
+		return ret, call.Err
+	}
+
+	call.Store(&ret)
+
+	return ret, nil
+}