title: webview load custom context menu
body: <p>I have a <code>WebView</code> in a window. In the <code>WebView</code>, I am able to restrict it to load its default contextual menu. I need to add a custom contextual menu for the <code>WebView</code>. So, please post a sample regarding this. I am new to Mac development. Please help me in this issue.</p>
  
  <p>Thanks in advance.</p>