jf-roku/components/RadioDialog.brs
2023-05-11 08:37:56 -04:00

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4.8 KiB
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import "pkg:/source/utils/misc.brs"
sub init()
m.contentArea = m.top.findNode("contentArea")
m.radioOptions = m.top.findNode("radioOptions")
m.scrollBarColumn = []
m.top.observeField("contentData", "onContentDataChanged")
m.top.observeFieldScoped("buttonSelected", "onButtonSelected")
m.radioOptions.observeField("focusedChild", "onItemFocused")
m.top.id = "OKDialog"
m.top.height = 900
end sub
' Event handler for when user selected a button
sub onButtonSelected()
if m.top.buttonSelected = 0
m.global.sceneManager.returnData = m.top.contentData.data[m.radioOptions.selectedIndex]
end if
end sub
' Event handler for when user's cursor highlights an option in the option list
sub onItemFocused()
focusedChild = m.radioOptions.focusedChild
if not isValid(focusedChild) then return
moveScrollBar()
' If the option list is scrollable, move the option list to the user's section
if m.scrollBarColumn.count() <> 0
hightedButtonTranslation = m.radioOptions.focusedChild.translation
m.radioOptions.translation = [m.radioOptions.translation[0], -1 * hightedButtonTranslation[1]]
end if
end sub
' Move the popup's scroll bar
sub moveScrollBar()
' If we haven't found the scrollbar column node yet, try to find it now
if m.scrollBarColumn.count() = 0
scrollBar = findNodeBySubtype(m.contentArea, "StdDlgScrollbar")
if scrollBar.count() = 0 or not isValid(scrollBar[0]) or not isValid(scrollBar[0].node)
return
end if
m.scrollBarColumn = findNodeBySubtype(scrollBar[0].node, "Poster")
if m.scrollBarColumn.count() = 0 or not isValid(m.scrollBarColumn[0]) or not isValid(m.scrollBarColumn[0].node)
return
end if
m.scrollBarThumb = findNodeBySubtype(m.scrollBarColumn[0].node, "Poster")
if m.scrollBarThumb.count() = 0 or not isValid(m.scrollBarThumb[0]) or not isValid(m.scrollBarThumb[0].node)
return
end if
m.scrollBarThumb[0].node.blendColor = "#444444"
' If the user presses left then right, it's possible for us to lose focus. Ensure focus stays on the option list.
scrollBar[0].node.observeField("focusedChild", "onScrollBarFocus")
' Hide the default scrollbar background
m.scrollBarColumn[0].node.uri = ""
' Create a new scrollbar background so we can move the original nodes freely
scrollbarBackground = createObject("roSGNode", "Rectangle")
scrollbarBackground.color = "#101010"
scrollbarBackground.opacity = "0.3"
scrollbarBackground.width = "30"
scrollbarBackground.height = m.contentArea.clippingRect.height
scrollbarBackground.translation = [0, 0]
scrollBar[0].node.insertChild(scrollbarBackground, 0)
' Determine the proper scroll amount for the scrollbar
m.scrollAmount = (m.contentArea.clippingRect.height - int(m.scrollBarThumb[0].node.height)) / m.radioOptions.getChildCount()
m.scrollAmount += m.scrollAmount / m.radioOptions.getChildCount()
end if
if not isvalid(m.radioOptions.focusedChild.id) then return
m.scrollBarColumn[0].node.translation = [0, val(m.radioOptions.focusedChild.id) * m.scrollAmount]
end sub
' If somehow the scrollbar gains focus, set focus back to the option list
sub onScrollBarFocus()
m.radioOptions.setFocus(true)
' Ensure scrollbar styles remain in an unfocused state
m.scrollBarThumb[0].node.blendColor = "#353535"
end sub
' Once user selected an item, move cursor down to OK button
sub onItemSelected()
buttonArea = findNodeBySubtype(m.top, "StdDlgButtonArea")
if buttonArea.count() <> 0 and isValid(buttonArea[0]) and isValid(buttonArea[0].node)
buttonArea[0].node.setFocus(true)
end if
end sub
sub onContentDataChanged()
i = 0
for each item in m.top.contentData.data
cardItem = m.radioOptions.CreateChild("StdDlgActionCardItem")
cardItem.iconType = "radiobutton"
cardItem.id = i
if isValid(item.selected)
m.radioOptions.selectedIndex = i
end if
textLine = cardItem.CreateChild("SimpleLabel")
textLine.text = item.track.description
cardItem.observeField("selected", "onItemSelected")
i++
end for
end sub
function onKeyEvent(key as string, press as boolean) as boolean
if key = "right"
' By default RIGHT from the option list selects the OK button
' Instead, keep the user on the option list
return true
end if
if not press then return false
if key = "up"
' By default UP from the OK button is the scrollbar
' Instead, move the user to the option list
if not m.radioOptions.isinFocusChain()
m.radioOptions.setFocus(true)
return true
end if
end if
return false
end function