About UI states

[nfroidure]

There are a few UI states we have to deal with in order to fire some events / behave like real users :

• the cursor position could be shared between touch and mouse events and is surely shared between mouse events and Pointer event for the mouse pointer.
• we have to track the activeElement and check if it's content changed when he loose the focus in order to fire a 'change' event.
• we could manage the clipboard content in order to use the paste / cut / copy functions without taking car of the content.