jf-roku/components/ItemGrid/ItemGridOptions.brs

sub init()

  m.buttons = m.top.findNode("buttons")
  m.buttons.buttons = [tr("TAB_VIEW"), tr("TAB_SORT"), tr("TAB_FILTER")]
  m.buttons.selectedIndex = 1
  m.buttons.setFocus(true)

  m.selectedSortIndex = 0
  m.selectedItem = 1

  m.menus = []
  m.menus.push(m.top.findNode("viewMenu"))
  m.menus.push(m.top.findNode("sortMenu"))
  m.menus.push(m.top.findNode("filterMenu"))

  m.viewNames = []
  m.sortNames = []
  m.filterNames = []

  ' Animation
  m.fadeAnim = m.top.findNode("fadeAnim")
  m.fadeOutAnimOpacity = m.top.findNode("outOpacity")
  m.fadeInAnimOpacity = m.top.findNode("inOpacity")

  m.buttons.observeField("focusedIndex", "buttonFocusChanged")

end sub


sub optionsSet()

  '  Views Tab
  if m.top.options.views <> invalid
    viewContent = CreateObject("roSGNode", "ContentNode")
    index = 0
    selectedViewIndex = 0

    for each view in m.top.options.views
      entry = viewContent.CreateChild("ContentNode")
      entry.title = view.Title
      m.viewNames.push(view.Name)
      if (view.selected <> invalid and view.selected = true) or viewContent.Name = m.top.view
        selectedViewIndex = index
      end if
      index = index + 1
    end for
    m.menus[0].content = viewContent
    m.menus[0].checkedItem = selectedViewIndex
  end if

  ' Sort Tab
  if m.top.options.sort <> invalid
    sortContent = CreateObject("roSGNode", "ContentNode")
    index = 0
    m.selectedSortIndex = 0

    for each sortItem in m.top.options.sort
      entry = sortContent.CreateChild("ContentNode")
      entry.title = sortItem.Title
      m.sortNames.push(sortItem.Name)
      if sortItem.Selected <> invalid and sortItem.Selected = true
        m.selectedSortIndex = index
        if sortItem.Ascending <> invalid and sortItem.Ascending = false
          m.top.sortAscending = 0
        else
          m.top.sortAscending = 1
        end if
      end if
      index = index + 1
    end for
    m.menus[1].content = sortContent
    m.menus[1].checkedItem = m.selectedSortIndex

    if m.top.sortAscending = 1
      m.menus[1].focusedCheckedIconUri = m.global.constants.icons.ascending_black
      m.menus[1].checkedIconUri = m.global.constants.icons.ascending_white
    else
      m.menus[1].focusedCheckedIconUri = m.global.constants.icons.descending_black
      m.menus[1].checkedIconUri = m.global.constants.icons.descending_white
    end if
  end if

  ' Filter Tab
  if m.top.options.filter <> invalid
    filterContent = CreateObject("roSGNode", "ContentNode")
    index = 0
    m.selectedFilterIndex = 0

    for each filterItem in m.top.options.filter
      entry = filterContent.CreateChild("ContentNode")
      entry.title = filterItem.Title
      m.filterNames.push(filterItem.Name)
      if filterItem.selected <> invalid and filterItem.selected = true
        m.selectedFilterIndex = index
      end if
      index = index + 1
    end for
    m.menus[2].content = filterContent
    m.menus[2].checkedItem = m.selectedFilterIndex
  else
    filterContent = CreateObject("roSGNode", "ContentNode")
    entry = filterContent.CreateChild("ContentNode")
    entry.title = "All"
    m.filterNames.push("All")
    m.menus[2].content = filterContent
    m.menus[2].checkedItem = 0
  end if


end sub

' Switch menu shown when button focus changes
sub buttonFocusChanged()
  if m.buttons.focusedIndex = m.selectedItem then return
  m.fadeOutAnimOpacity.fieldToInterp = m.menus[m.selectedItem].id + ".opacity"
  m.fadeInAnimOpacity.fieldToInterp =  m.menus[m.buttons.focusedIndex].id + ".opacity"
  m.fadeAnim.control = "start"
  m.selectedItem = m.buttons.focusedIndex
end sub


function onKeyEvent(key as string, press as boolean) as boolean

  if key = "down" or (key = "OK" and m.top.findNode("buttons").hasFocus())
    m.top.findNode("buttons").setFocus(false)
    m.menus[m.selectedItem].setFocus(true)
    m.menus[m.selectedItem].drawFocusFeedback = true

    'If user presses down from button menu, focus first item.  If OK, focus checked item
    if key = "down"
      m.menus[m.selectedItem].jumpToItem = 0
    else
      m.menus[m.selectedItem].jumpToItem = m.menus[m.selectedItem].itemSelected
    end if

    return true
  else if key = "OK"
    if m.menus[m.selectedItem].isInFocusChain()
      ' Handle View Screen
      if m.selectedItem = 0
        m.selectedViewIndex = m.menus[0].itemSelected
        m.top.view = m.viewNames[m.selectedViewIndex]
      end if

      ' Handle Sort screen
      if m.selectedItem = 1
        if m.menus[1].itemSelected <> m.selectedSortIndex
          m.menus[1].focusedCheckedIconUri = m.global.constants.icons.ascending_black
          m.menus[1].checkedIconUri = m.global.constants.icons.ascending_white

          m.selectedSortIndex = m.menus[1].itemSelected
          m.top.sortAscending = true
          m.top.sortField = m.sortNames[m.selectedSortIndex]
        else

          if m.top.sortAscending = true
            m.top.sortAscending = false
            m.menus[1].focusedCheckedIconUri = m.global.constants.icons.descending_black
            m.menus[1].checkedIconUri = m.global.constants.icons.descending_white
          else
            m.top.sortAscending = true
            m.menus[1].focusedCheckedIconUri = m.global.constants.icons.ascending_black
            m.menus[1].checkedIconUri = m.global.constants.icons.ascending_white
          end if
        end if
      end if
      ' Handle Filter screen
      if m.selectedItem = 2
        m.selectedFilterIndex = m.menus[2].itemSelected
        m.top.filter = m.filterNames[m.selectedFilterIndex]
      end if
    end if
    return true
  else if key = "back" or key = "up"
    if m.menus[m.selectedItem].isInFocusChain()
      m.buttons.setFocus(true)
      m.menus[m.selectedItem].drawFocusFeedback = false
      return true
    end if
  else if key = "options"
    m.menus[m.selectedItem].drawFocusFeedback = false
    return false
  end if

  return false

end function