As stated in the answer to this question, one can setup a Timeline to check whether there is a change in the system clipboard:
Set and use variables outside timeline in javafx 8
But is there a better way? For example, an event listener? I have searched JavaFx 8 doc and didn't find anything obviously helpful.
Solutions using JavaFx is preferred, but all answers are welcome.
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.input.Clipboard;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
public class Main extends Application {
@Override
public void start(Stage primaryStage) throws Exception {
final Clipboard systemClipboard = Clipboard.getSystemClipboard();
new com.sun.glass.ui.ClipboardAssistance(com.sun.glass.ui.Clipboard.SYSTEM) {
@Override
public void contentChanged() {
System.out.print("System clipboard content changed: ");
if ( systemClipboard.hasImage() ) {
System.out.println("image");
} else if ( systemClipboard.hasString() ) {
System.out.println("string");
} else if ( systemClipboard.hasFiles() ) {
System.out.println("files");
}
}
};
primaryStage.setScene(new Scene(new StackPane()));
primaryStage.show();
}
}
Test:
No, there isn't a better way. There are no events sent round when the clipboard contents change (especially if it's from outside of the Java application) and so only a polling approach is appropriate.
