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gaurachit
Level 7

Keyboard closing problem

I am creating a POC for simple search functionality in my channel. I am able to Show the search popup as required when I am pressing ok on the input area of search screen it is showing the keyboard screen according to expectation.

But when I am closing the keyboard by pressing Ok or Cancel button the Keyboard screen doesn't close. I just go at back of the search screen and when I close the search screen it closes the keyboard screen.

To sea the behaviour I have just make 2 more methods for showKeyboard
showKeyboard2() and showKeyboard3()

and I am surprise when I call them in place of showKeyboard() like:
when I call showKeyboard2() method it never shows the keyboard which is absolutely correct behaviour
but when I call showKeyboard3() it opens the keyboard but after 5 seconds it again takes the keyboard in back of the search in place of closing it.

Please have a look of my code I am giving with this post and suggest that what should I do to close the keyboard successfully.
Function Main()
canvas = CreateObject("roImageCanvas")
port = CreateObject("roMessagePort")
canvas.SetMessagePort(port)
list = []
list.push({Color:"#FFFFFF", CompossionMode:"Source"})
list.push({
Text:"Press OK to show Search Screen",
TextAttrs:{color:"#000000", font:"Medium", HAlign:"Left",VAlign:"Top", Direction:"LeftToRight"},
TargetRect:{x:300, y:100, w:500, h:40}
})
canvas.SetLayer(0, list)
canvas.show()
while true
msg = wait(0, port)
if(Type(msg) = "roImageCanvasEvent")
if(msg.IsremoteKeyPressed())
index = msg.GetIndex()
if(index = 6) 'OK key pressed
showSearchPopupScreen("Title")
end if
else if(msg.IsScreenClossed())

end if
else
print "Unexpected Event."
end if
end while
End Function

function showSearchPopupScreen(searchType as String)
selectedRow = 0
REM** Show Lower opacity background screen
facadeCanvas = CreateObject("roImageCanvas")
port = CreateObject("roMessagePort")
facadeCanvas.SetMessagePort(port)
facadeCanvas.SetLayer(0, {Color:"#99000000", CompossionMode:"Source_Over"})
facadeCanvas.show()

REM ** Show the SearchPopupScreen
popupCanvas = CreateObject("roImageCanvas")
popupCanvas.SetMessagePort(port)
popupCanvas.AllowUpdates(false)
list = []
list.push({
url:"pkg:/images/HD/canvasBack.png",
TargetRect:{x:240, y:210, w:700, h:300}
})
list.push({
Text:"Enter " + searchType + " Name:",
TextAttrs:{color:"#000000", font:"Medium", HAlign:"Left",VAlign:"Top", Direction:"LeftToRight"},
TargetRect:{x:300, y:250, w:500, h:40}
})
list.push({
url:"pkg:/images/HD/input_text_bg.png",
TargetRect:{x:390, y:300, w:400, h:70}
})
list.push({
url:"pkg:/images/HD/ok.png",
TargetRect:{x:515, y:400, w:150, h:55}
})
popupCanvas.SetLayer(0, list)
popupCanvas.SetLayer(1, {url:"pkg:/images/HD/input_text_bg_hover.png", TargetRect:{x:390, y:300, w:400, h:70}})
popupCanvas.AllowUpdates(true)
popupCanvas.show()
while true
msg = wait(0, port)
if(Type(msg) = "roImageCanvasEvent")
if(msg.IsremoteKeyPressed())
index = msg.GetIndex()
if(index = 0) 'Back key pressed
return -1
else if(index = 2) 'Up key pressed
print "popup canvas Up key pressed."
if(selectedRow = 1)
popupCanvas.SetLayer(1, {url:"pkg:/images/HD/input_text_bg_hover.png", TargetRect:{x:390, y:300, w:400, h:70}})
selectedRow = 0
end if
else if(index = 3) 'Down key pressed
print "popup canvas Up key pressed."
if(selectedRow = 0)
popupCanvas.SetLayer(1, {url:"pkg:/images/HD/hover.png", TargetRect:{x:515, y:400, w:150, h:55}})
selectedRow = 1
end if
else if(index = 4) 'Left move
else if(index = 5) 'Right move
else if(index = 6)
print "Selected Row: "selectedRow
'result = showKeyboard()
'result = showKeyboard2()
result = showKeyboard3()
end if
else if(msg.IsScreenClosed())
return -1
end if
else
showPopupScreen()
end if
end while
end function

function showKeyboard() as Dynamic
screen = CreateObject("roKeyboardScreen")
port = CreateObject("roMessagePort")
screen.setMessagePort(port)
screen.SetDisplayText("Enter Director Name")
screen.setSecureText(false)
screen.AddButton(1, "Ok")
screen.AddButton(2, "Cancel")
screen.Show()
result = invalid
while true
msg = wait(0, port)
if type(msg) = "roKeyboardScreenEvent"
print "KeyBoard Event: "
print Type(msg)
print msg
if (msg.isScreenClosed())
print "Comes into isScreenClosed event of KeyboardScreen.."
exit while
else if (msg.isButtonPressed())
if msg.GetIndex() = 1
print "Text Entered: " screen.GetText()
if(screen.GetText().trim() <> "")
result = screen.GetText()
exit while
else
dialog = CreateObject("roMessageDialog")
dialog.SetMessagePort(screen.GetMessagePort())
dialog.SetTitle("Alert!!")
dialog.SetText("Field cannot be empty.")
dialog.AddButton(1, "Ok")
dialog.EnableBackButton(true)
dialog.Show()
end if
else if msg.GetIndex() = 2
exit while
end if
end if
else if type(msg) = "roMessageDialogEvent"
if (msg.isButtonPressed())
if (msg.GetIndex() = 1)
dialog.close()
end if
else if (msg.isScreenClosed())
dialog.close()
end if
else
print "Un-expected event"
end if
end while
screen.close()
return result
end function

function showKeyboard2() as Dynamic
screen = CreateObject("roKeyboardScreen")
port = CreateObject("roMessagePort")
screen.setMessagePort(port)
screen.SetDisplayText("Enter Director Name")
screen.setSecureText(false)
screen.AddButton(1, "Ok")
screen.AddButton(2, "Cancel")
screen.Show()
screen.close()
return ""
end function

function showKeyboard3() as Dynamic
screen = CreateObject("roKeyboardScreen")
port = CreateObject("roMessagePort")
screen.setMessagePort(port)
screen.SetDisplayText("Enter Director Name")
screen.setSecureText(false)
screen.AddButton(1, "Ok")
screen.AddButton(2, "Cancel")
screen.Show()
sleep(5000)
screen.close()
return ""
end function

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3 Replies
gaurachit
Level 7

Re: Keyboard closing problem

Can anyone help me on this issue.
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belltown
Level 7

Re: Keyboard closing problem

I've encountered similar problems when playing around with roImageCanvas components that call standard BRS components. Although the documentation says, "When a screen is closed, it is removed from the stack and the screen which was below the top screen then becomes visible", the behavior I've observed is that the screen isn't actually removed from the display; it is merely over-written by re-displaying the screen that was below the top screen, which amounts to the same thing if the screen below the top screen has an opaque background, as most do. However, if the screen below the top screen does not have an opaque background then the previous screen will still be visible through the transparent areas of the old top screen.

In your case, your popup canvas does not have an opaque background, or any background layer at all actually, so what you're seeing is the non-transparent portions of that layer superimposed over the keyboard screen, which is no longer active even though its pixels are still displayed. I think if you give your popup canvas an opaque background layer (although that may not be what you want) then you'll no longer see the keyboard screen when it is closed.

You have a few typos to fix also: CompossionMode -> CompositionMode, and IsScreenClossed -> IsScreenClosed
https://github.com/belltown/
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gaurachit
Level 7

Re: Keyboard closing problem

Hi Beltown,

Thanks for reply.
Yes you are right if I give the opaque background layer on popup canvas then It become invisible actually it(keyboard screen) hides behind the popup.
But I need transparent or semi-transparent background for popup menu and in that case the keyboard shows in behind of popup.
Is there any other way you supposed to handle this kind of situation.

Also thanks to make my attention on the typos.
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