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fix(accordion): add attr.openClass || 'panel-open' class when expanded #4198

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@davious davious commented Aug 13, 2015

uses toggleClass in isOpen watch
Fixes #4193

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scope.$watch('isOpen', function(value) {
element.toggleClass(scope.openClass, value);
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This is incorrect - if the element has a different class for some reason, this will cause a bug.

You will want

element[value ? 'addClass' : 'removeClass'](scope.openClass)

in this case to be safe.

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Hi @wesleycho,
Thanks for reviewing the PR. I'd like to understand your concern better. Please provide an example so I can get on the same page.

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Any DOM manipulation can be done to change the class of the element - in that case, relying on toggle to correctly toggle the class would be completely incorrect, since it makes a poor assumption that the actual class reflects the state of isOpen. The coupling of the model value and the DOM value is not strong enough to make this assumption in a library.

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@wesleycho
how about
element.toggleClass(scope.openClass, !!value);
is that OK?

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Still has the same flaw of using toggleClass

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@wesleycho
would you provide an example? If you are concerned with toggleClass mashing some other classes, I'm thinking toggleClass plays safe with them just like addClass and removeClass.

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I apologize, I'm on not enough sleep it appears - this is completely fine due to the second parameter. Ignore my complaints here.

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@wesleycho 😁 np. Thanks for staying up and accepting the PR

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This PR LGTM - will merge in sometime today.

@wesleycho wesleycho added this to the 0.13.4 (Performance) milestone Aug 13, 2015
@wesleycho wesleycho closed this in 575eb85 Aug 13, 2015
@davious davious deleted the accordion-group-class-alt branch August 16, 2015 20:35
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2 participants