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|
package main
import (
"fmt"
"image"
"image/draw"
_ "image/jpeg"
_ "image/png"
"log"
"os"
"path/filepath"
"sync"
"sync/atomic"
"time"
"github.com/godbus/dbus/v5"
"github.com/esiqveland/notify"
)
func main() {
err := runMain()
if err != nil {
log.Printf("\nerror: %v\n", err)
os.Exit(1)
}
}
func runMain() error {
wg := &sync.WaitGroup{}
conn, err := dbus.SessionBusPrivate()
if err != nil {
panic(err)
}
defer conn.Close()
if err = conn.Auth(nil); err != nil {
panic(err)
}
if err = conn.Hello(); err != nil {
panic(err)
}
DebugServerFeatures(conn)
// Basic usage
soundHint := notify.HintSoundWithName(
//"message-new-instant",
"trash-empty",
)
// Create a Notification to send
iconName := "mail-unread"
n := notify.Notification{
AppName: "Test GO App",
ReplacesID: uint32(0),
AppIcon: iconName,
Summary: "Test",
Body: "This is a test of the DBus bindings for go with sound.",
Actions: []notify.Action{
{Key: "cancel", Label: "Cancel"},
{Key: "open", Label: "Open"},
},
Hints: map[string]dbus.Variant{
soundHint.ID: soundHint.Variant,
},
ExpireTimeout: time.Second * 5,
}
n.SetUrgency(notify.UrgencyCritical)
counter := int32(0)
// Listen for actions invoked!
onAction := func(action *notify.ActionInvokedSignal) {
atomic.AddInt32(&counter, 1)
log.Printf("ActionInvoked: %v Key: %v", action.ID, action.ActionKey)
wg.Done()
}
onClosed := func(closer *notify.NotificationClosedSignal) {
atomic.AddInt32(&counter, 1)
log.Printf("NotificationClosed: %v Reason: %v", closer.ID, closer.Reason)
wg.Done()
}
// Notifier instance with event delivery:
notifier, err := notify.New(
conn,
// action event handler
notify.WithOnAction(onAction),
// closed event handler
notify.WithOnClosed(onClosed),
// override with custom logger
notify.WithLogger(log.New(os.Stdout, "notify: ", log.Flags())),
)
if err != nil {
return err
}
defer notifier.Close()
rgbaSample, err := readImage("./big.jpg")
if err != nil {
return err
}
absFilePath, err := filepath.Abs("./small.png")
if err != nil {
return err
}
hintProfileImage := notify.HintImageDataRGBA(rgbaSample)
hintImageByPath := notify.HintImageFilePath(absFilePath)
urgencyHint := notify.HintUrgency(notify.UrgencyCritical)
n.AddHint(urgencyHint)
n.AddHint(hintImageByPath)
// according to spec, image-data hint should have precedence:
n.AddHint(hintProfileImage)
wg.Add(1)
id, err := notifier.SendNotification(n)
if err != nil {
log.Printf("error sending notification: %v", err)
}
log.Printf("sent notification id: %v", id)
// add two extra so the process should block forever:
// this is due to a bug in Gnome that delivers multiple copies of the action signal...
wg.Add(2)
wg.Wait()
log.Printf("total signal count received: %d", atomic.LoadInt32(&counter))
return nil
}
func DebugServerFeatures(conn *dbus.Conn) {
// List server features!
caps, err := notify.GetCapabilities(conn)
if err != nil {
log.Printf("error fetching capabilities: %v", err)
}
for x := range caps {
fmt.Printf("Registered capability: %v\n", caps[x])
}
info, err := notify.GetServerInformation(conn)
if err != nil {
log.Printf("error getting server information: %v", err)
}
fmt.Printf("Name: %v\n", info.Name)
fmt.Printf("Vendor: %v\n", info.Vendor)
fmt.Printf("Version: %v\n", info.Version)
fmt.Printf("Spec: %v\n", info.SpecVersion)
}
func readImage(path string) (*image.RGBA, error) {
fd, err := os.Open(path)
if err != nil {
return nil, err
}
defer fd.Close()
decode, _, err := image.Decode(fd)
if err != nil {
return nil, err
}
img, ok := decode.(*image.RGBA)
if !ok {
b := decode.Bounds()
m := image.NewRGBA(image.Rect(0, 0, b.Dx(), b.Dy()))
draw.Draw(m, m.Bounds(), decode, b.Min, draw.Src)
return m, nil
//return nil, fmt.Errorf("decode RGBA failed of: %v", path)
}
return img, err
}
|
