clipboard: implement virtual-keyboard-unstable-v1 to replace wtype for

pasting entries

core/internal/clipboard/wl.go

@@ -0,0 +1,93 @@
+package clipboard
+
+import (
+	"fmt"
+
+	"github.com/AvengeMedia/DankMaterialShell/core/internal/proto/ext_data_control"
+	"github.com/AvengeMedia/DankMaterialShell/core/internal/proto/virtual_keyboard"
+	wlclient "github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
+)
+
+type session struct {
+	display            *wlclient.Display
+	ctx                *wlclient.Context
+	registry           *wlclient.Registry
+	seat               *wlclient.Seat
+	dataControlMgr     *ext_data_control.ExtDataControlManagerV1
+	virtualKeyboardMgr *virtual_keyboard.ZwpVirtualKeyboardManagerV1
+}
+
+// connectSession opens a short-lived Wayland connection and binds the seat
+// plus whichever clipboard-related globals the compositor advertises.
+func connectSession() (*session, error) {
+	display, err := wlclient.Connect("")
+	if err != nil {
+		return nil, fmt.Errorf("wayland connect: %w", err)
+	}
+
+	s := &session{display: display, ctx: display.Context()}
+
+	registry, err := display.GetRegistry()
+	if err != nil {
+		display.Destroy()
+		return nil, fmt.Errorf("get registry: %w", err)
+	}
+	s.registry = registry
+
+	var bindErr error
+	bind := func(name uint32, iface string, version uint32, proxy wlclient.Proxy) {
+		if err := registry.Bind(name, iface, version, proxy); err != nil {
+			bindErr = fmt.Errorf("bind %s: %w", iface, err)
+		}
+	}
+
+	registry.SetGlobalHandler(func(e wlclient.RegistryGlobalEvent) {
+		switch e.Interface {
+		case ext_data_control.ExtDataControlManagerV1InterfaceName:
+			mgr := ext_data_control.NewExtDataControlManagerV1(s.ctx)
+			bind(e.Name, e.Interface, e.Version, mgr)
+			s.dataControlMgr = mgr
+		case virtual_keyboard.ZwpVirtualKeyboardManagerV1InterfaceName:
+			mgr := virtual_keyboard.NewZwpVirtualKeyboardManagerV1(s.ctx)
+			bind(e.Name, e.Interface, e.Version, mgr)
+			s.virtualKeyboardMgr = mgr
+		case "wl_seat":
+			if s.seat != nil {
+				return
+			}
+			seat := wlclient.NewSeat(s.ctx)
+			bind(e.Name, e.Interface, e.Version, seat)
+			s.seat = seat
+		}
+	})
+
+	display.Roundtrip()
+	display.Roundtrip()
+
+	if bindErr != nil {
+		s.Close()
+		return nil, bindErr
+	}
+	return s, nil
+}
+
+func (s *session) requireDataControl() (*ext_data_control.ExtDataControlManagerV1, error) {
+	switch {
+	case s.dataControlMgr == nil:
+		return nil, fmt.Errorf("compositor does not support ext_data_control_manager_v1")
+	case s.seat == nil:
+		return nil, fmt.Errorf("no seat available")
+	default:
+		return s.dataControlMgr, nil
+	}
+}
+
+func (s *session) Close() {
+	if s.dataControlMgr != nil {
+		s.dataControlMgr.Destroy()
+	}
+	if s.registry != nil {
+		s.registry.Destroy()
+	}
+	s.display.Destroy()
+}