jf-roku/source/utils/misc.brs

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function isNodeEvent(msg, field as string) as boolean
return type(msg) = "roSGNodeEvent" and msg.getField() = field
end function
function getMsgPicker(msg, subnode = "" as string) as object
node = msg.getRoSGNode()
' Subnode allows for handling alias messages
if subnode <> ""
node = node.findNode(subnode)
end if
coords = node.rowItemSelected
target = node.content.getChild(coords[0]).getChild(coords[1])
return target
end function
function getButton(msg, subnode = "buttons" as string) as object
buttons = msg.getRoSGNode().findNode(subnode)
active_button = buttons.focusedChild
return active_button
end function
function leftPad(base as string, fill as string, length as integer) as string
while len(base) < length
base = fill + base
end while
return base
end function
function ticksToHuman(ticks as longinteger) as string
totalSeconds = int(ticks / 10000000)
hours = stri(int(totalSeconds / 3600)).trim()
minutes = stri(int((totalSeconds - (val(hours)*3600))/60)).trim()
seconds = stri(totalSeconds - (val(hours)*3600) - (val(minutes)*60)).trim()
if val(hours) > 0 and val(minutes) < 10 then minutes = "0" + minutes
if val(seconds) < 10 then seconds = "0" + seconds
r=""
if val(hours) > 0 then r = hours + ":"
r = r + minutes + ":" + seconds
return r
end function
' Format time as 12 or 24 hour format based on system clock setting
function formatTime(time) as string
hours = time.getHours()
minHourDigits = 1
di = CreateObject("roDeviceInfo")
if di.GetClockFormat() = "12h" then
meridian = "AM"
if hours = 0
hours = 12
meridian = "AM"
else if hours = 12
hours = 12
meridian = "PM"
else if hours > 12
hours = hours - 12
meridian = "PM"
end if
else
' For 24hr Clock, no meridian and pad hours to 2 digits
minHourDigits = 2
meridian = ""
end if
return Substitute("{0}:{1} {2}", leftPad(stri(hours).trim(), "0", minHourDigits), leftPad(stri(time.getMinutes()).trim(), "0", 2), meridian)
end function
function div_ceiling(a as integer, b as integer) as integer
if a < b then return 1
if int(a/b) = a/b then
return a/b
end if
return a/b + 1
end function
'Returns the item selected or -1 on backpress or other unhandled closure of dialog.
function get_dialog_result(dialog, port)
while dialog <> invalid
msg = wait(0, port)
if isNodeEvent(msg, "backPressed") then
return -1
elseif isNodeEvent(msg, "itemSelected")
return dialog.findNode("optionList").itemSelected
end if
end while
'Dialog has closed outside of this loop, return -1 for failure
return -1
end function
function lastFocusedChild(obj as object) as object
child = obj
for i = 0 to obj.getChildCount()
if obj.focusedChild <> invalid then
child = child.focusedChild
end if
end for
return child
end function
function show_dialog(message as string, options = [], defaultSelection = 0) as integer
group = m.scene.focusedChild
lastFocus = lastFocusedChild(m.scene)
'We want to handle backPressed instead of the main loop
m.scene.unobserveField("backPressed")
dialog = createObject("roSGNode", "JFMessageDialog")
if options.count() then dialog.options = options
if message.len() > 0 then
reg = CreateObject("roFontRegistry")
font = reg.GetDefaultFont()
dialog.fontHeight = font.GetOneLineHeight()
dialog.fontWidth = font.GetOneLineWidth(message, 999999999)
dialog.message = message
end if
if defaultSelection > 0 then
dialog.findNode("optionList").jumpToItem = defaultSelection
end if
dialog.visible = true
m.scene.appendChild(dialog)
dialog.setFocus(true)
port = CreateObject("roMessagePort")
dialog.observeField("backPressed", port)
dialog.findNode("optionList").observeField("itemSelected", port)
result = get_dialog_result(dialog, port)
m.scene.removeChildIndex(m.scene.getChildCount() - 1)
lastFocus.setFocus(true)
m.scene.observeField("backPressed", m.port)
return result
end function
function message_dialog(message = "" as string)
return show_dialog(message,["OK"])
end function
function option_dialog(options, message = "", defaultSelection = 0) as integer
return show_dialog(message, options, defaultSelection)
end function