Allow Tabs to be controllable
#970
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This pull request is being automatically deployed with Vercel (learn more). headlessui-vue – ./packages/@headlessui-vue🔍 Inspect: https://vercel.com/tailwindlabs/headlessui-vue/51AEvdsdo8gtZC7KQnpWSL7Pxaj9 headlessui-react – ./packages/@headlessui-react🔍 Inspect: https://vercel.com/tailwindlabs/headlessui-react/DRnAogPrgbnRTNCgcnoKnRzPChte |
`selectedIndex || defaultIndex` would result in the `defaultIndex` if
`selectedIndex` is set to 0. This means that if you have this code:
```js
<Tab.Group selectedIndex={0} defaultIndex={2} />
```
That you will never be able to see the very first tab, unless you
provided a negative value like `-1`.
`selectedIndex ?? defaultIndex` fixes this, since it purely checkes for
`undefined` and `null`.
RobinMalfait
changed the title
Tabs to be controllable
RobinMalfait
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Jan 14, 2022
* placeholder for next release * Ensure portal root exists in the DOM (#950) * ensure that the portal root is always in the DOM When using NextJS, it happens that between page transitions the portal root gets removed form the DOM. We will check the DOM when the `target` updates, and if it doesn't exist anymore, then we will re-insert it in the DOM. * update changelog * Allow `Tabs` to be controllable (#970) * feat(react): Allow Tab Component to be controlled * fix falsy bug `selectedIndex || defaultIndex` would result in the `defaultIndex` if `selectedIndex` is set to 0. This means that if you have this code: ```js <Tab.Group selectedIndex={0} defaultIndex={2} /> ``` That you will never be able to see the very first tab, unless you provided a negative value like `-1`. `selectedIndex ?? defaultIndex` fixes this, since it purely checkes for `undefined` and `null`. * implemented controllable Tabs for Vue * add dedicated test to ensure changing the defaultIndex has no effect * update changelog Co-authored-by: ChiefORZ <seb.schaffernak@gmail.com> * Fix missing key binding in examples (#1036) Co-authored-by: superDragon <xkloveme@gmail.com> * Fix slice => splice typo in Vue Tabs component (#1037) Co-authored-by: Ryan Gossiaux <ryan.gossiaux@gmail.com> * update changelog * Ensure correct DOM node order when performing focus actions (#1038) * ensure that the order of DOM nodes is correct When we are performing actions like `focusIn(list, Focus.First)` then we have to ensrue that we are working with the correct list that is properly sorted. It can happen that the list of DOM nodes is out of sync. This can happen if you have 3 Tabs, hide the second (which triggers an unmount and an `unregister` of the Tab), then re-add the second item in the middle. This will re-add the item to the end of the list instead of in the middle. We can solve this by always sorting items when we are adding / removing items, but this is a bit more error prone because it is easy to forget. Instead we will sort it when performing the actual keyboard action. If we didn't provide a list but an element, then we use a getFocusableElements(element) function, but this already gives you a correctly sorted list so we don't need to do that for this list. * add tests to prove the correct order when performing actions * cleanup code just for tests It could still happen that this internal list is not ordered correctly but that's not really a problem we just have the list to keep track of things. For our tests we now use the position from the DOM directly. * update changelog Co-authored-by: ChiefORZ <seb.schaffernak@gmail.com> Co-authored-by: superDragon <xkloveme@gmail.com> Co-authored-by: Ryan Gossiaux <ryan.gossiaux@gmail.com>
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This PR will allow you to control the
Tabsstate using theselectedIndexprop.The
defaultIndexstill exist and will still be the defaultIndex if noselectedIndexprop was provided.Started this PR from #909 with a few improvements and Vue implementation.
Thanks @ChiefORZ for your initial work!
Closes: #909