Messing around with the iPhone

By on July 5, 2007 12:50 am

Well, the plan was to go through every type of input object, button, and image in Safari on my shiny new iPhone and make notes about what functions were available, how event handling works, and any other fun little goodies that came along. I started out with the good old text input box, and after an hour or two of executing functions in all sorts of different orders and being seriously freaked out a couple of times, I’m worried about the pretty severe limitations of one of the most basic widgets of the web browser:

  • When the input does not have “virtual keyboard” focus, calling its focus function calls its onfocus function, but does not give the input “virtual keyboard” focus
  • When the input does not have “virtual keyboard” focus, but you’ve called its focus function, calling its blur function will call its onblur function. When the input does have “virtual keyboard” focus, calling its blur function does absolutely nothing (which breaks some scripts that prevent input by blurring on focus).
  • When the input does not have “virtual keyboard” focus, calling its select function does nothing, until you scroll or zoom in on the page, at which point it calls both its onfocus and onblur functions. When the input does have “virtual keyboard” focus, calling its select function does absolutely nothing.
  • Calling its click function calls its onclick function as expected.
  • Selecting an input box fires: onfocus, onmouseover, onmousedown, onmouseup, onclick, and sometimes onmousemove
  • Selecting the next item on the page fires: onblur, and (conditionally) onchange, but still no key events.
  • Clicking the “Done” button in the “virtual keyboard” fires: onblur, and (conditionally) onchange, but still no key events.
  • The only key that registers any key events is the return key.