extract clipboard from xorg.

server/internal/remote/clipboard/clipboard.go

@@ -0,0 +1,35 @@
+package clipboard
+
+/*
+#cgo linux LDFLAGS: /usr/local/lib/libclipboard.a -lxcb
+
+#include "clipboard.h"
+*/
+import "C"
+
+import (
+	"sync"
+	"unsafe"
+)
+
+var mu = sync.Mutex{}
+
+func Read() string {
+	mu.Lock()
+	defer mu.Unlock()
+
+	clipboardUnsafe := C.ClipboardGet()
+	defer C.free(unsafe.Pointer(clipboardUnsafe))
+
+	return C.GoString(clipboardUnsafe)
+}
+
+func Write(data string) {
+	mu.Lock()
+	defer mu.Unlock()
+
+	clipboardUnsafe := C.CString(data)
+	defer C.free(unsafe.Pointer(clipboardUnsafe))
+
+	C.ClipboardSet(clipboardUnsafe)
+}