TabItem properties

steve64

I'm facing issues with trying to change the selected tabitem in a Tab
Is it really possible to use a statement like the following?

tab.selected = tab.items[n]

At least on my side, the Tab.selected property returns a reference that has nothing to do with the references found in the list of Tab.items property

steve64

any feedback on this point?

Samir

Sorry for the late answer !

Yes you can set the tab.selected property using an item in the tab.items table

You cannot use the tab.items element as fixed items. Each item returned by this property is a new instance of a TabItem that's why references are not comparable.

The documentation have a warning for that :
TabItems are ephemeral objects that are instantiated by their owner Tab objects, with the Tab.items property.

steve64

I tried your example:

local ui = require "ui"

-- create a simple Window 
local win = ui.Window("Tab.selected sample", "fixed", 320, 250)
local tab = ui.Tab(win, {"Tab 1", "Tab 2", "Tab 3"})

function tab:onSelect(item)
	win:status(item.text.." is selected")
end

tab.selected = tab.items[3]
win:show()

-- update user interface
repeat
	ui.update()
until not win.visible

changing tab.selected = tab.items[3], the callback still works as expected but the currently selected tab (visually) intially is still set to 1

Samir

Thank you Steve, effectively it's a bug.

Update : It's now fixed and will be available in next release