Using Element Queries (EQCSS) with GSS?

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David Becker

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Aug 20, 2016, 9:31:24 PM8/20/16
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I am interesting in using element queries (see http://elementqueries.com/) within GSS resources. Of course, GSS doesn't recognize the @element rules and emits an error. 

Does anyone has any suggestions on how I might get this working?

Thanks!

Jens

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Aug 21, 2016, 9:55:45 AM8/21/16
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Its more like that Closure Stylesheets does not recognize @element. Given that its not a CSS spec but just a syntax for the element queries JS library Closure Stylesheet probably won't implement support for it.

For now your best bet is to use a TextResource and inject your EQCSS manually using StyleInjector. To target an element using @element you would need to mark that CSS class as external in case its part of a CssResource so it won't be renamed by GWT.

-- J.

David Becker

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Aug 21, 2016, 10:45:20 AM8/21/16
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Yeah, that's what I meant by GSS. EQCSS looks like a very powerful and useful concept - I hope it does become genuine CSS some day. 

Unfortunately, using a separate TextResource isn't quite what I'm looking for. I want the best of both worlds. :)
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Jens

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Aug 21, 2016, 11:56:04 AM8/21/16
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Unfortunately, using a separate TextResource isn't quite what I'm looking for. I want the best of both worlds. :)

Hm looking at the syntax of EQCSS again, it seems that you have to fork GWT anyways, because even if GSS would allow @element you would still need to obfuscate the selector (css id of class) if its a non-external css class/id managed by CssResource.

Alternatively you could try to implement your own EqCssResource and write your own EqCssResourceGenerator since the ClientBundle/Resource mechanism is extendable in GWT for custom resources.

-- J.

David Becker

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Aug 21, 2016, 12:04:54 PM8/21/16
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Thanks for the suggestions, Jens. I'll do some experiments and see what happens.


On Sunday, August 21, 2016, Jens <jens.ne...@gmail.com> wrote:
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