tab cycling through grid multiselect checkboxes shifts grid
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- Dominant language
- Java
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Description
Originally by charkins
Attached is simple example to demonstrate the bug. The UI consists of a VerticalLayout containing a label and a Grid. When the grid is in multiselect mode, tab-cycling through all components in the page will cause the entire grid to shift up so that the header row is hidden behind the label. This happens because the multiselect checkboxes are cycled through and the shift happens when tab focuses the first non-visible checkbox in the grid.
Tested on Chrome (48.0.2564.82) and Firefox (43.0.3) with vaadin 7.6.4 and 7.4.0.
Imported from https://dev.vaadin.com/ issue #19672
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the attached simple example containing a VerticalLayout, label, and multiselect Grid, then reproduce the issue by tab-cycling through all components. Investigate the focus transition to the first non-visible checkbox. Done means the grid no longer shifts upward or hides its header while navigating with Tab in Chrome and Firefox.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- accessibility, frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100