rename backend to core

core/internal/server/wlcontext/context.go

@@ -0,0 +1,76 @@
+package wlcontext
+
+import (
+	"fmt"
+	"sync"
+
+	"github.com/AvengeMedia/DankMaterialShell/core/internal/errdefs"
+	"github.com/AvengeMedia/DankMaterialShell/core/internal/log"
+	wlclient "github.com/yaslama/go-wayland/wayland/client"
+)
+
+type SharedContext struct {
+	display  *wlclient.Display
+	stopChan chan struct{}
+	wg       sync.WaitGroup
+	mu       sync.Mutex
+	started  bool
+}
+
+func New() (*SharedContext, error) {
+	display, err := wlclient.Connect("")
+	if err != nil {
+		return nil, fmt.Errorf("%w: %v", errdefs.ErrNoWaylandDisplay, err)
+	}
+
+	sc := &SharedContext{
+		display:  display,
+		stopChan: make(chan struct{}),
+		started:  false,
+	}
+
+	return sc, nil
+}
+
+func (sc *SharedContext) Start() {
+	sc.mu.Lock()
+	defer sc.mu.Unlock()
+
+	if sc.started {
+		return
+	}
+
+	sc.started = true
+	sc.wg.Add(1)
+	go sc.eventDispatcher()
+}
+
+func (sc *SharedContext) Display() *wlclient.Display {
+	return sc.display
+}
+
+func (sc *SharedContext) eventDispatcher() {
+	defer sc.wg.Done()
+	ctx := sc.display.Context()
+
+	for {
+		select {
+		case <-sc.stopChan:
+			return
+		default:
+			if err := ctx.Dispatch(); err != nil {
+				log.Errorf("Wayland connection error: %v", err)
+				return
+			}
+		}
+	}
+}
+
+func (sc *SharedContext) Close() {
+	close(sc.stopChan)
+	sc.wg.Wait()
+
+	if sc.display != nil {
+		sc.display.Context().Close()
+	}
+}