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Default value for "checked" is undefined, this causes a bug #170
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ellenaua
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azariah001
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Feb 28, 2017
…t set There is a known bug where when checked is bound to in a template value it's default value when unset is 'undefined' which results in the essential _compute functions not being called. Thus the hidden class (most importantly) is not defined and the default checkbox remains visible within the paper-checkbox location resulting in very bad UX. This is probably a very inefficient method but.... it works. And doesn't loop so it's a start at least. And because it doesn't rely on passing itself into a computed function, it is still called when it's undefined and thus solves the primary problem indicated in PolymerElements#170
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I've made a hack patch for this problem. If someone could take a look at it and maybe suggest a more efficient way of achieving the same effect that would be brilliant. Holding off on a pull request just yet. |
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Problem resolved in #172 |
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Description
Default value for "checked" attribute is undefined, but documentation says it's "false".
This is important, because when checked=undefined, and invalid=true, this function
https://github.com/PolymerElements/paper-checkbox/blob/master/paper-checkbox.html#L230
is not called and .invalid class is not set on the checkbox.
Expected outcome
Default value for checked attribute should be false
When I set invalid to true, checkbox should get .invalid class.
Actual outcome
Default value for checked attribute is undefined
When I set invalid to true, checkbox does not get .invalid class.
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