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fix(tabs): unnecessarily adding pagination when changing to new list of tabs with same labels #16869

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merged 1 commit into from
Apr 24, 2020

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These changes fix an issue where swapping out the list of tabs to one with the same labels causes the header to add a pagination when it doesn't have to. It looks like issue comes down to the fact that we check the element dimensions before they've had the chance to update. This works for the case where the tabs have different text, because we also have a MutationObserver that looks at them and it fires a bit later.

Fixes #16789.

@crisbeto crisbeto added P3 An issue that is relevant to core functions, but does not impede progress. Important, but not urgent target: patch This PR is targeted for the next patch release labels Aug 24, 2019
@googlebot googlebot added the cla: yes PR author has agreed to Google's Contributor License Agreement label Aug 24, 2019
…of tabs with same labels

These changes fix an issue where swapping out the list of tabs to one with the same labels causes the header to add a pagination when it doesn't have to. It looks like issue comes down to the fact that we check the element dimensions before they've had the chance to update. This works for the case where the tabs have different text, because we also have a `MutationObserver` that looks at them and it fires a bit later.

Fixes angular#16789.
@crisbeto crisbeto force-pushed the 16789/tabs-pagination-same-text branch from 90b2436 to 5685918 Compare August 24, 2019 16:06
@mmalerba mmalerba added lgtm action: merge The PR is ready for merge by the caretaker labels Mar 6, 2020
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LGTM

@jelbourn jelbourn merged commit 6a64130 into angular:master Apr 24, 2020
jelbourn pushed a commit that referenced this pull request Apr 24, 2020
…of tabs with same labels (#16869)

These changes fix an issue where swapping out the list of tabs to one with the same labels causes the header to add a pagination when it doesn't have to. It looks like issue comes down to the fact that we check the element dimensions before they've had the chance to update. This works for the case where the tabs have different text, because we also have a `MutationObserver` that looks at them and it fires a bit later.

Fixes #16789.
crisbeto added a commit to crisbeto/material2 that referenced this pull request Apr 24, 2020
Recently angular#16869 was merged which was created before we had MDC-based tabs which means that the MDC tests were never updated.
jelbourn pushed a commit that referenced this pull request Apr 24, 2020
Recently #16869 was merged which was created before we had MDC-based tabs which means that the MDC tests were never updated.
jelbourn pushed a commit that referenced this pull request Apr 24, 2020
Recently #16869 was merged which was created before we had MDC-based tabs which means that the MDC tests were never updated.
soro-google pushed a commit to soro-google/components that referenced this pull request Apr 24, 2020
…of tabs with same labels (angular#16869)

These changes fix an issue where swapping out the list of tabs to one with the same labels causes the header to add a pagination when it doesn't have to. It looks like issue comes down to the fact that we check the element dimensions before they've had the chance to update. This works for the case where the tabs have different text, because we also have a `MutationObserver` that looks at them and it fires a bit later.

Fixes angular#16789.
soro-google pushed a commit to soro-google/components that referenced this pull request Apr 24, 2020
Recently angular#16869 was merged which was created before we had MDC-based tabs which means that the MDC tests were never updated.
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action: merge The PR is ready for merge by the caretaker cla: yes PR author has agreed to Google's Contributor License Agreement P3 An issue that is relevant to core functions, but does not impede progress. Important, but not urgent target: patch This PR is targeted for the next patch release
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[Tabs] Pagination shown when tabs change but the tab label text does not
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