vaadin / vaadin/framework

TreeTable body height incorrectly calculated in IE when there are icons

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bug Stale v7
Dominant language
Java
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Merged PRs (30d)
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Description

Originally by @Artur-


A TreeTable with icons can cause a vertical scrollbar to appear when there are only a few items because the body height is calculated incorrectly. This only seems to happen when the cache is empty and is possibly caused by Internet Explorer putting large image placeholders where the icons should be. Row height is then measured with these placeholders in place and not updated when the icons have been loaded.


Imported from https://dev.vaadin.com/ issue #7945

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First steps

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  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 locating the TreeTable body-height calculation and reproduce the issue in Internet Explorer with icons and an empty cache. Confirm that row height is recalculated after the icons load; done means a TreeTable with only a few icon-bearing items no longer shows an erroneous vertical scrollbar.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
frontend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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