Add Android (native) clipboard support via gomobile

core/clipClearProcessGeneric.go

@@ -0,0 +1,40 @@
+//go:build !android || termux
+
+package core
+
+import (
+	"strings"
+	"time"
+)
+
+// clipClearProcess clears the clipboard after 30 seconds if the clipboard contents have not changed.
+// assignedContents can be omitted to clear the clipboard immediately and unconditionally.
+func clipClearProcess(assignedContents string) {
+	cmdPaste, cmdClear := getClipCommands()
+
+	clearClipboard := func() {
+		err := cmdClear.Run()
+		if err != nil {
+			PrintError("Failed to clear clipboard", ErrorClipboard, true)
+		}
+		Exit(0)
+	}
+
+	// if assignedContents is empty, clear the clipboard immediately and unconditionally
+	if assignedContents == "" {
+		clearClipboard()
+		return
+	}
+
+	// wait 30 seconds before checking clipboard contents
+	time.Sleep(30 * time.Second)
+
+	newContents, err := cmdPaste.Output()
+	if err != nil {
+		PrintError("Failed to read clipboard contents", ErrorClipboard, true)
+	}
+
+	if assignedContents == strings.TrimRight(string(newContents), "\r\n") {
+		clearClipboard()
+	}
+}