Design Team/Activity Touch Input

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Turtle Art

  • Canvas zooming in/out with pinch gesture
  • Canvas scrolling when dragging canvas
  • Default to large blocks when used on a touch device (reduce obscuring effect of fingers & improve hit target)
  • Portrait orientation clips too many toolbar icons (expect portrait orientation to be used much more frequently on tablet devices)
  • Toolbar hover hints clobbering view of block palettes (due to touch activation leaving pointer over toolbar buttons )
  • Allow escaping from full screen mode (see Read for improved behaviour)


  • Vertical scrolling solution
  • Page turning swipe gesture for paginatable documents