Mock up code for basic testing

src/main/java/me/goudham/view/ClipboardView.java

@@ -0,0 +1,69 @@
+package me.goudham.view;
+
+import me.goudham.controller.MyClipboardContent;
+import me.goudham.model.TransferableImage;
+
+import javax.swing.*;
+import java.awt.Image;
+import java.awt.Toolkit;
+import java.awt.datatransfer.*;
+import java.io.IOException;
+
+public class ClipboardView {
+	private JPanel Clipboard;
+	private JButton copyButton;
+	private JList<String> clipboardContentList;
+	private JLabel title;
+	private JScrollPane scrollPane;
+
+	public ClipboardView() {
+		scrollPane.setBorder(BorderFactory.createEmptyBorder());
+
+		final java.awt.datatransfer.Clipboard systemClipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
+		final MyClipboardContent<?> previousContent = new MyClipboardContent<>("");
+		final int[] count = { 0 };
+
+		systemClipboard.addFlavorListener(new FlavorListener() {
+			@Override
+			public void flavorsChanged(FlavorEvent e) {
+				 MyClipboardContent<?> clipboardContent = null;
+				try {
+					if (systemClipboard.isDataFlavorAvailable(DataFlavor.stringFlavor)) {
+						String stringContent = (String) systemClipboard.getData(DataFlavor.stringFlavor);
+						clipboardContent = new MyClipboardContent<>(stringContent);
+					} else if (systemClipboard.isDataFlavorAvailable(DataFlavor.imageFlavor)) {
+						Image imageContent = (Image) systemClipboard.getData(DataFlavor.imageFlavor);
+						clipboardContent = new MyClipboardContent<>(imageContent);
+					}
+				} catch (UnsupportedFlavorException | IOException unsupportedFlavorException) {
+					unsupportedFlavorException.printStackTrace();
+				}
+
+				if (previousContent.getContent().equals(clipboardContent.getContent())) {
+					count[0]++;
+				}
+
+				if (!previousContent.getContent().equals(clipboardContent.getContent()) || count[0] > 1) {
+					systemClipboard.setContents(new TransferableImage((Image) clipboardContent.getContent()), null);
+//					systemClipboard.setContents(new StringSelection((String) clipboardContent.getContent()), null);
+					System.out.println("The clipboard contains: " + clipboardContent.getContent());
+
+					DefaultListModel<String> demoList = new DefaultListModel<>();
+					int size = clipboardContentList.getModel().getSize();
+					demoList.addElement("0. " + clipboardContent.getContent());
+					for (int i = 0; i < size; i++) {
+						demoList.addElement((i + 1) + ". " + clipboardContentList.getModel().getElementAt(i));
+					}
+					clipboardContentList.setModel(demoList);
+
+					previousContent.setContent(clipboardContent.getContent());
+					count[0] = 0;
+				}
+			}
+		});
+	}
+
+	public JPanel getClipboard() {
+		return Clipboard;
+	}
+}