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How to implement a counter in roMessageDialog?

I am trying to implement a counter in roMessageDialog screen such that the counter decrements after each second.

Sub Main()

'initialize theme attributes like titles, logos and overhang color
initTheme()

gridstyle = "two-row-flat-landscape-custom"

'set to go, time to get started
while gridstyle <> ""
print "starting grid style= ";gridstyle
screen=preShowGridScreen(gridstyle)
gridstyle = showGridScreen(screen, gridstyle)
'ShowMessageDialog()
end while

End Sub


'*************************************************************
'** Set the configurable theme attributes for the application
'**
'** Configure the custom overhang and Logo attributes
'** These attributes affect the branding of the application
'** and are artwork, colors and offsets specific to the app
'*************************************************************

Sub initTheme()
app = CreateObject("roAppManager")
app.SetTheme(CreateDefaultTheme())
End Sub

'******************************************************
'** @return The default application theme.
'** Screens can make slight adjustments to the default
'** theme by getting it from here and then overriding
'** individual theme attributes.
'******************************************************
Function CreateDefaultTheme() as Object
theme = CreateObject("roAssociativeArray")

theme.ThemeType = "generic-dark"

' All these are greyscales
theme.GridScreenBackgroundColor = "#F0F0F0"
theme.GridScreenMessageColor = "#F0FFFF"
theme.GridScreenRetrievingColor = "#FF00FF"
theme.GridScreenListNameColor = "#FFFF00"

' Color values work here
theme.GridScreenDescriptionTitleColor = "#FFFFFF"
theme.GridScreenDescriptionDateColor = "#FFFFFF"
theme.GridScreenDescriptionRuntimeColor = "#FFFFFF"
theme.GridScreenDescriptionSynopsisColor = "#FFFFFF"
theme.DialogBodyText="#F0F0F0"
theme.DialogTitleText="#F0F0F0"

'used in the Grid Screen
theme.CounterTextLeft = "#FF0000"
theme.CounterSeparator = "#00FF00"
theme.CounterTextRight = "#0000FF"

theme.GridScreenLogoHD = "pkg:/images/overhang-hd.png"

theme.GridScreenLogoOffsetHD_X = "0"
theme.GridScreenLogoOffsetHD_Y = "0"
theme.GridScreenOverhangHeightHD = "99"

theme.GridScreenLogoSD = "pkg:/images/overhang-sd.png"
theme.GridScreenOverhangHeightSD = "66"
theme.GridScreenLogoOffsetSD_X = "0"
theme.GridScreenLogoOffsetSD_Y = "0"

' to use your own focus ring artwork
'theme.GridScreenFocusBorderSD = "pkg:/images/GridCenter_Border_Episodic_SD43.png"
'theme.GridScreenBorderOffsetSD = "(-26,-25)"
'theme.GridScreenFocusBorderHD = "pkg:/images/GridCenter_Border_Episodic_SD43.png"
'theme.GridScreenBorderOffsetHD = "(-28,-20)"

' to use your own description background artwork
'theme.GridScreenDescriptionImageSD = "pkg:/images/Grid_Description_Background_SD43.png"
'theme.GridScreenDescriptionOffsetSD = "(125,170)"
'theme.GridScreenDescriptionImageHD = "pkg:/images/Grid_Description_Background_HD.png"
'theme.GridScreenDescriptionOffsetHD = "(190,255)"


return theme
End Function

'******************************************************
'** Perform any startup/initialization stuff prior to
'** initially showing the screen.
'******************************************************
Function preShowGridScreen(style as string) As Object

m.port=CreateObject("roMessagePort")
screen = CreateObject("roGridScreen")
screen.SetMessagePort(m.port)
' screen.SetDisplayMode("best-fit")
screen.SetDisplayMode("scale-to-fill")


screen.SetGridStyle(style)
return screen

End Function


'******************************************************
'** Display the gird screen and wait for events from
'** the screen. The screen will show retreiving while
'** we fetch and parse the feeds for the show posters
'******************************************************
Function showGridScreen(screen As Object, gridstyle as string) As string

print "enter showGridScreen"


categoryList = getCategoryList()
categoryList[0] = "GridStyle: " + gridstyle
screen.setupLists(categoryList.count())
screen.SetListNames(categoryList)
StyleButtons = getGridControlButtons()
screen.SetContentList(0, StyleButtons)
for i = 1 to categoryList.count()-1
screen.SetContentList(i, getShowsForCategoryItem(categoryList[i]))
end for
screen.Show()
ShowMessageDialog()
while true
print "Waiting for message"
msg = wait(0, m.port)
'msg = wait(0, screen.GetMessagePort()) ' getmessageport does not work on gridscreen
print "Got Message:";type(msg)
if type(msg) = "roGridScreenEvent" then
print "msg= "; msg.GetMessage() " , index= "; msg.GetIndex(); " data= "; msg.getData()
if msg.isListItemFocused() then
print"list item focused | current show = "; msg.GetIndex()
else if msg.isListItemSelected() then
timer = CreateObject("roTimespan")
timer.Mark()
ShowMessageDialog()
Print timer.TotalSeconds()

else if msg.isScreenClosed() then
return ""
end if
end If
end while


End Function

'**********************************************************
'** When a poster on the home screen is selected, we call
'** this function passing an roAssociativeArray with the
'** ContentMetaData for the selected show. This data should
'** be sufficient for the springboard to display
'**********************************************************
Function displayShowDetailScreen(category as Object, showIndex as Integer) As Integer

'add code to create springboard, for now we do nothing
return 1

End Function


'**************************************************************
'** Return the list of categories to display in the filter
'** banner. The result is an roArray containing the names of
'** all of the categories. All just static data for the example.
'***************************************************************
Function getCategoryList() As Object

categoryList = [ "GridStyle", "Reality", "History", "News", "Comedy", "Drama"]
return categoryList

End Function


'********************************************************************
'** Given the category from the filter banner, return an array
'** of ContentMetaData objects (roAssociativeArray's) representing
'** the shows for the category. For this example, we just cheat and
'** create and return a static array with just the minimal items
'** set, but ideally, you'd go to a feed service, fetch and parse
'** this data dynamically, so content for each category is dynamic
'********************************************************************
Function getShowsForCategoryItem(category As Object) As Object

print "getting shows for category "; category

showList = [
{
Title: category + ": Header",
releaseDate: "1976",
length: 3600-600,
Description:"This row is category " + category,
hdBranded: true,
HDPosterUrl:"http://upload.wikimedia.org/wikipedia/commons/4/43/Gold_star_on_blue.gif",
SDPosterUrl:"http://upload.wikimedia.org/wikipedia/commons/4/43/Gold_star_on_blue.gif",
Description:"Short Synopsis #1",
Synopsis:"Length",
StarRating:10,
}
{
Title: category + ": Beverly Hillbillies",
releaseDate: "1969",
rating: "PG",
Description:"Come and listen to a story about a man named Jed: Poor mountaineer, barely kept his family fed. Then one day he was shootin at some food, and up through the ground came a bubblin crude. Oil that is, black gold, Texas tea.",
numEpisodes:42,
contentType:"season",
HDPosterUrl:"http://upload.wikimedia.org/wikipedia/en/4/4e/The_Beverly_Hillbillies.jpg",
SDPosterUrl:"http://upload.wikimedia.org/wikipedia/en/4/4e/The_Beverly_Hillbillies.jpg",
StarRating:80,
UserStarRating:40
}
{
Title: category + ": Babylon 5",
releaseDate: "1996",
rating: "PG",
Description:"The show centers on the Babylon 5 space station: a focal point for politics, diplomacy, and conflict during the years 2257-2262.",
numEpisodes:102,
contentType:"season",
HDPosterUrl:"http://upload.wikimedia.org/wikipedia/en/9/9d/Smb5-s4.jpg",
SDPosterUrl:"http://upload.wikimedia.org/wikipedia/en/9/9d/Smb5-s4.jpg",
StarRating:80,
UserStarRating:40
}
{
Title: category + ": John F. Kennedy",
releaseDate: "1961",
rating: "PG",
Description:"My fellow citizens of the world: ask not what America will do for you, but what together we can do for the freedom of man.",
HDPosterUrl:"http://upload.wikimedia.org/wikipedia/en/5/52/Jfk_happy_birthday_1.jpg",
SDPosterUrl:"http://upload.wikimedia.org/wikipedia/en/5/52/Jfk_happy_birthday_1.jpg",
StarRating:100
}
{
Title: category + ": Man on the Moon",
releaseDate: "1969",
rating: "PG",
Description:"That's one small step for a man, one giant leap for mankind.",
HDPosterUrl:"http://upload.wikimedia.org/wikipedia/commons/1/1e/Apollo_11_first_step.jpg",
SDPosterUrl:"http://upload.wikimedia.org/wikipedia/commons/1/1e/Apollo_11_first_step.jpg",
StarRating:100
}
{
Title: category + ": I have a Dream",
releaseDate: "1963",
rating: "PG",
Description:"I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin, but by the content of their character.",
HDPosterUrl:"http://upload.wikimedia.org/wikipedia/commons/8/81/Martin_Luther_King_-_March_on_Washington.jpg",
SDPosterUrl:"http://upload.wikimedia.org/wikipedia/commons/8/81/Martin_Luther_King_-_March_on_Washington.jpg",
StarRating:100
}
]

return showList
End Function

function getGridControlButtons() as object
buttons = [
{ Title: "Flat-Movie"
ReleaseDate: "HD:5x2 SD:5x2"
Description: "Flat-Movie (Netflix) style"
HDPosterUrl:"http://rzim.mediacatapult.com/storage/2426/Media/10424_27655/Thumbnails/16610_67207HD.jpg",
SDPosterUrl:"http://rzim.mediacatapult.com/storage/2426/Media/10424_27655/Thumbnails/16610_67207SD.jpg"
}
{ Title: "Flat-Landscape"
ReleaseDate: "HD:5x3 SD:4x3"
Description: "Channel Store"
HDPosterUrl:"http://rzim.mediacatapult.com/storage/2426/Media/10424_27655/Thumbnails/16610_67207HD.jpg",
SDPosterUrl:"http://rzim.mediacatapult.com/storage/2426/Media/10424_27655/Thumbnails/16610_67207SD.jpg"
}
{ Title: "Flat-Portrait"
ReleaseDate: "HD:5x2 SD:5x2"
Description: "3x4 style posters"
HDPosterUrl:"http://rzim.mediacatapult.com/storage/2426/Media/10424_27655/Thumbnails/16610_67207HD.jpg",
SDPosterUrl:"http://rzim.mediacatapult.com/storage/2426/Media/10424_27655/Thumbnails/16610_67207SD.jpg" }
{ Title: "Flat-Square"
ReleaseDate: "HD:7x3 SD:6x3"
Description: "1x1 style posters"
HDPosterUrl:"http://rzim.mediacatapult.com/storage/2426/Media/10424_27655/Thumbnails/16610_67207HD.jpg",
SDPosterUrl:"http://rzim.mediacatapult.com/storage/2426/Media/10424_27655/Thumbnails/16610_67207SD.jpg"
}
{ Title: "Flat-16x9"
ReleaseDate: "HD:5x3 SD:4x3"
Description: "HD style posters"
HDPosterUrl:"http://rzim.mediacatapult.com/storage/2426/Media/10424_27655/Thumbnails/16610_67207HD.jpg",
SDPosterUrl:"http://rzim.mediacatapult.com/storage/2426/Media/10424_27655/Thumbnails/16610_67207SD.jpg"
}
]
return buttons
End Function





Function ShowMessageDialog() As Void
port = CreateObject("roMessagePort")
dialog = CreateObject("roMessageDialog")
dialog.SetMessagePort(port)
dialog.SetTitle("ALERT")
dialog.SetText("Server will be under maintainence on Sunday.We are sorry for inconvienence caused")
dialog.ShowBusyAnimation()
dialog.AddButton(1, "SKIP")
dialog.EnableBackButton(true)
dialog.Show()
While True
dlgMsg = wait(5000, dialog.GetMessagePort())
exit while
If type(dlgMsg) = "roMessageDialogEvent"
if dlgMsg.isButtonPressed()
if dlgMsg.GetIndex() = 1
exit while
end if
else if dlgMsg.isScreenClosed()
exit while
end if
end if
end while
End Function
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2 Replies
TheEndless
Level 7

Re: How to implement a counter in roMessageDialog?

ifMessageDialog.UpdateText() might do what you're looking for, but the documented behavior is a bit contradictory.
My Channels: http://roku.permanence.com - Twitter: @TheEndlessDev
Instant Watch Browser (NetflixIWB), Aquarium Screensaver (AQUARIUM), Clever Clocks Screensaver (CLEVERCLOCKS), iTunes Podcasts (ITPC), My Channels (MYCHANNELS)
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Roku Employee
Roku Employee

Re: How to implement a counter in roMessageDialog?

"TheEndless" wrote:
ifMessageDialog.UpdateText() might do what you're looking for, but the documented behavior is a bit contradictory.


Yes. The documentation has been adjusted to remove the incorrect statement about multiple calls to UpdateText adding multiple lines.
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