vaadin / vaadin/framework

Add SelectedTabChangingEvent to TabSheet component with the event params: startTabIndex, targetTabIndex e canChangeTab

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enhancement
Dominant language
Java
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Forks
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Avg merge
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Merged PRs (30d)
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Description

The TabSheet has SelectedTabChangeEvent.
It would be useful to have SelectedTabChangingEvent with the event params: startTabIndex, targetTabIndex and canChangeTab

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by tracing the existing SelectedTabChangeEvent in the TabSheet component and review how its event parameters are defined and dispatched. Define the corresponding changing event around the requested startTabIndex, targetTabIndex, and canChangeTab parameters, then verify that tab changes can be observed and controlled through the new event.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
frontend
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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