title: Detect if input was touched (tablet) or clicked (mouse)
body: <p>We are developing a Web-App, which launches on Desktop and on tablets (iPad, Android or a surface). Now we are building our own keyboard for number inputs. When you set the focus on an input field with a mousclick, the costum keyboard opens correct. But when you set the focus to the input with a touched click (tablet), the default keyboard opens also. Our idea is, to detect, if there was a mouse-click or a touched click. If it's a touched click, we can set the <strong>readonly="true"</strong> property to the input, so the default keyboard on a tabled wouldn't slide in.</p>
  
  <p>Is there a way to detect or check which "type" of click it was (touched or mouse).</p>