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package main
import (
"fmt"
"os"
"github.com/godbus/dbus/v5"
"github.com/godbus/dbus/v5/introspect"
"github.com/godbus/dbus/v5/prop"
)
type foo string
func (f foo) Foo() (string, *dbus.Error) {
fmt.Println(f)
return string(f), nil
}
type Foo struct {
Id int
Value string
}
func main() {
conn, err := dbus.ConnectSessionBus()
if err != nil {
panic(err)
}
defer conn.Close()
reply, err := conn.RequestName("com.github.guelfey.Demo",
dbus.NameFlagDoNotQueue)
if err != nil {
panic(err)
}
if reply != dbus.RequestNameReplyPrimaryOwner {
_, _ = fmt.Fprintln(os.Stderr, "name already taken")
os.Exit(1)
}
propsSpec := map[string]map[string]*prop.Prop{
"com.github.guelfey.Demo": {
"SomeInt": {
int32(0),
true,
prop.EmitTrue,
func(c *prop.Change) *dbus.Error {
fmt.Println(c.Name, "changed to", c.Value)
return nil
},
},
"FooStruct": {
Foo{Id: 1, Value: "First"},
true,
prop.EmitTrue,
func(c *prop.Change) *dbus.Error {
var foo Foo
err := dbus.Store([]interface{}{c.Value}, &foo)
if err != nil {
_, _ = fmt.Fprintf(os.Stderr, "dbus.Store foo failed: %v\n", err)
}
fmt.Println(c.Name, "changed to", foo)
return nil
},
},
},
}
f := foo("Bar")
err = conn.Export(f, "/com/github/guelfey/Demo", "com.github.guelfey.Demo")
if err != nil {
_, _ = fmt.Fprintf(os.Stderr, "export f failed: %v\n", err)
os.Exit(1)
}
props, err := prop.Export(conn, "/com/github/guelfey/Demo", propsSpec)
if err != nil {
_, _ = fmt.Fprintf(os.Stderr, "export propsSpec failed: %v\n", err)
os.Exit(1)
}
n := &introspect.Node{
Name: "/com/github/guelfey/Demo",
Interfaces: []introspect.Interface{
introspect.IntrospectData,
prop.IntrospectData,
{
Name: "com.github.guelfey.Demo",
Methods: introspect.Methods(f),
Properties: props.Introspection("com.github.guelfey.Demo"),
},
},
}
err = conn.Export(introspect.NewIntrospectable(n), "/com/github/guelfey/Demo",
"org.freedesktop.DBus.Introspectable")
if err != nil {
_, _ = fmt.Fprintf(os.Stderr, "export introspect failed: %v\n", err)
os.Exit(1)
}
fmt.Println("Listening on com.github.guelfey.Demo / /com/github/guelfey/Demo ...")
c := make(chan *dbus.Signal)
conn.Signal(c)
for range c {
}
}
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