Boolean Attr

[Mathieu Leclaire]

Hi,
I try to set the autofocus Attr on an input.
In the html documentation the autofocus is not related to a pair: you just define as "autofocus":
<input type="text" name="fname" autofocus>

But autoinput in scalatags requires a pair. So I tried:
input(autofocus := "true")
input(autofocus := true)

Buc rone on them works:
The html results is always: <input autofocus="">.
Do you know how to achieve this ?

[Reid Spencer]

autoinput is a boolean attribute which means it doesn’t need a value. If it requires one in an input tag, that’s a bug in scalatags. OTOH, you could set the value to “autofocus” which should cause it to appear with a value. 

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[Haoyi Li]

Might well be a bug in scalatags, but haven't had time to reproduce and debug, sorry...

[Mathieu Leclaire]

Well, I am not sure of what I am supposed to get with the autofocus. In my mind, when the page is loaded the focus is on this element. In particular for an input: the input is ready to receive new inputs without selecting it with the mouse.
But when I try the simple <input autofocus /> in a jsfiddle, the input in not focused ... It is exactly the same with <input autofocus="autofocus" />.
http://jsfiddle.net/cmw0qbz5/

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Faites bonne impression et imprimez seulement au besoin! 

[Reid Spencer]

Your jsfiddle works for me if I make it have valid HTML. See: http://jsfiddle.net/cmw0qbz5/2/

But that’s not really the point of this thread. We want to make sure that the “autofocus” attribute in scalawags works.  My version of scalatags.generic.Attrs contains this:

/**
 * This Boolean attribute lets you specify that a form control should have
 * input focus when the page loads, unless the user overrides it, for example
 * by typing in a different control. Only one form element in a document can
 * have the autofocus attribute, which is a Boolean. It cannot be applied if
 * the type attribute is set to hidden (that is, you cannot automatically set
 * focus to a hidden control).
 *
 * MDN
 */
val autofocus = "autofocus".attr := "autofocus"

Note that autofocus here is defined WITH a value (“autofocus”) so it shouldn’t need one in your code. You should be able to do, simply:

input(type=“text”,autofocus)

Does this not work for you?

Reid.

[Mathieu Leclaire]

It's the point, because I want to know what I am supposed to get :) !
Actually your jsfiddle works on chrome but not on firefox ... I suppose you use chrome, right ?

And if I try my scalatags code on chrome, the focus is properly set.
So the issue seems to be that the autofocus attribute does not work on firefox ...

[Reid Spencer]

Yes, I used Chrome. No, it doesn’t work in Firefox. Yes, that can even be shown in a w3schools example: http://www.w3schools.com/html/tryit.asp?filename=tryhtml5_input_autofocus 

And, no, this is not the right forum to discuss browser bugs. 

[Mathieu Leclaire]

Well, I would not have opened this discussion if I had known the origin of the problem ...