init commit

internal/clipboard/x11.go

@@ -0,0 +1,51 @@
+package clipboard
+
+import (
+	"context"
+
+	"golang.design/x/clipboard"
+)
+
+type X11Clipboard struct{}
+
+func NewX11() (*X11Clipboard, error) {
+	if err := clipboard.Init(); err != nil {
+		return nil, err
+	}
+	return &X11Clipboard{}, nil
+}
+
+func (c *X11Clipboard) Read() (string, error) {
+	return string(clipboard.Read(clipboard.FmtText)), nil
+}
+
+func (c *X11Clipboard) Write(content string) error {
+	clipboard.Write(clipboard.FmtText, []byte(content))
+	return nil
+}
+
+func (c *X11Clipboard) Watch(ctx context.Context) <-chan string {
+	out := make(chan string)
+
+	go func() {
+		defer close(out)
+
+		// golang.design/x/clipboard provides a Watch function
+		ch := clipboard.Watch(ctx, clipboard.FmtText)
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case data, ok := <-ch:
+				if !ok {
+					return
+				}
+				if len(data) > 0 {
+					out <- string(data)
+				}
+			}
+		}
+	}()
+
+	return out
+}