feat(material/tabs): Throw error in MDC tabs if [tabPanel] input is not provided #24517
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zelliott
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| 'mdc-tabs': [ | ||
| // These tests are excluded because they are verifying behavior that is not supported in MDC. | ||
| 'should have no explicit roles', |
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Should the feature or missing tests be ported over? The MDC tabs should have feature parity with the existing ones.
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This PR changes MDC tabs to not have feature parity with the existing tabs. In the existing tabs, the [tabPanel] input is optional. If it isn't provided, then the tabs fall back to default link/navigation behavior to avoid breaking existing instances in g3 that are impossible for me to migrate to use the [tabPanel]. In the new MDC tabs, we throw an error if the [tabPanel] input isn't provided. Thus, as users migrate from existing to MDC, if they're not already using the [tabPanel] input, they'll need to do so.
Given the [tabPanel] input is enforced in MDC tabs, we don't need to verify/test any of the link/navigation fallback behavior. That's why I explicitly didn't port over these tests.
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| override ngAfterViewInit() { | ||
| if (!this.tabPanel && (typeof ngDevMode === 'undefined' || ngDevMode)) { |
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nit: this won't catch the case where it starts off with a panel and it gets removed afterwards. Not sure if we need to worry about it.
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I think that's an exceptional case that we don't need to warn against, but I'm happy to move the check to either a setter or ngOnChanges if we feel otherwise.
…ot provided (angular#24517) * feat(material/tabs): Throw error in MDC tabs if [tabPanel] is not provided. * feat(material/tabs): Exclude some tests from MDC * feat(material/tabs): Add tab panel to kitchen sinks
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4 participants
This PR updates MDC nav tabs to throw an error if the
[tabPanel]input is not provided. Note that no such logic is added to the non-MDC tabs.Additionally: