another signal wanted

[blset]

<Spinner class=("visible", move || login.pending().get()) />
where only a MaybeProp is allowed

this is to be able to show the button with spinner but without it changed size
when the spinner is no more needed

 <Button>
 <Spinner class=("visible", move || login.pending().get()) />
  "Se connecter"
 </Button>

an also this silently ignores the attribute

<Spinner class:visible=move || login.pending().get() />

and gives, but without error,
<svg class="singlestage-spinner">

[adoyle0]

It sounds like you want Show

[blset]

ok but I tried with show and it removes the space used by the spinner, so that there is a flickering , when the button adjusts its size

[adoyle0]

Well you can make the button a fixed width, you can use show with a fallback that's the same size as the spinner, you can set style="visibility: hidden" to visibly hide the spinner without removing it from the dom, there are many solutions. I don't think I can do anything about setting class though because Spinner is a component and the whole library kind of depends on setting classes. Maybe if I'm ever able to make everything a HTMLElement like I want to then it'll work. #6

[blset]

all right, I'll try that
thanks for the tips