jf-roku/components/ButtonGroupHoriz.xml

<?xml version="1.0" encoding="utf-8" ?>
<component name="ButtonGroupHoriz" extends="ButtonGroup">
  <interface>
    <field id="escape" type="boolean" alwaysNotify="true" />
  </interface>
  <script type="text/brightscript">
  <![CDATA[
  sub init()
    m.top.layoutDirection = "horiz"
  end sub

  function onKeyEvent(key as string, press as boolean) as boolean
    if not press then return false
    if key = "right"
      i = m.top.buttonFocused
      target = i + 1
      if target >= m.top.getChildCount() then return false
      m.top.focusButton = target
      return true
    else if key = "left"
      i = m.top.buttonFocused
      target = i - 1
      if target < 0 then return false
      m.top.focusButton = target
      return true
    else if key = "up" or key = "down"
      m.top.escape = true
      return true
    end if

    return false
  end function
  ]]>
  </script>


</component>