Discussion:
How to enforce Elm to recreate HTML tags instead of reusing existing tags?
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Kadzuya OKAMOTO
2017-11-27 17:12:46 UTC
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Here is an example app to explain this problem.
https://ellie-app.com/c5X3fGFPha1/1

In this example, a popup window flashes unexpectedly when "Tab B" is
clicked.
The reason why this occurs, I guess, is bellow.

* "Tab B" is clicked
* Elm tries to reuse HTML tag (in this case the tag of the age field).
* It causes `addAttribute("aria-hidden", "true")` on the tag
* CSS transition fires because `aria-hidden` attribute was changed

To prevent this unexpected phenomenon, I'm looking for a way to prohibit
Elm to reuse existing tags.
Is any workaround for this?
Or is my hypothesis above wrong?

I believe this is a usual requirement especially when we use
`elm-lang/navigation` package to realize SPA routing.
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Peter Damoc
2017-11-27 17:25:21 UTC
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Use Html.Keyed for managing the troublesome kids.

Here is your example adapted based on your feedback that it is the age
field that's the problem.
https://ellie-app.com/czbx9WRyDa1/0
Post by Kadzuya OKAMOTO
Here is an example app to explain this problem.
https://ellie-app.com/c5X3fGFPha1/1
In this example, a popup window flashes unexpectedly when "Tab B" is
clicked.
The reason why this occurs, I guess, is bellow.
* "Tab B" is clicked
* Elm tries to reuse HTML tag (in this case the tag of the age field).
* It causes `addAttribute("aria-hidden", "true")` on the tag
* CSS transition fires because `aria-hidden` attribute was changed
To prevent this unexpected phenomenon, I'm looking for a way to prohibit
Elm to reuse existing tags.
Is any workaround for this?
Or is my hypothesis above wrong?
I believe this is a usual requirement especially when we use
`elm-lang/navigation` package to realize SPA routing.
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There is NO FATE, we are the creators.
blog: http://damoc.ro/
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Kadzuya OKAMOTO
2017-11-27 17:31:41 UTC
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This is what I wanted.
Thanks very much!
Post by Peter Damoc
Use Html.Keyed for managing the troublesome kids.
Here is your example adapted based on your feedback that it is the age
field that's the problem.
https://ellie-app.com/czbx9WRyDa1/0
Post by Kadzuya OKAMOTO
Here is an example app to explain this problem.
https://ellie-app.com/c5X3fGFPha1/1
In this example, a popup window flashes unexpectedly when "Tab B" is
clicked.
The reason why this occurs, I guess, is bellow.
* "Tab B" is clicked
* Elm tries to reuse HTML tag (in this case the tag of the age field).
* It causes `addAttribute("aria-hidden", "true")` on the tag
* CSS transition fires because `aria-hidden` attribute was changed
To prevent this unexpected phenomenon, I'm looking for a way to prohibit
Elm to reuse existing tags.
Is any workaround for this?
Or is my hypothesis above wrong?
I believe this is a usual requirement especially when we use
`elm-lang/navigation` package to realize SPA routing.
--
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There is NO FATE, we are the creators.
blog: http://damoc.ro/
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