Dir 'rtl' not working in vertical orientation
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Description
Is this a regression?
- Yes, this behavior used to work in the previous version
The previous version in which this bug was not present was
No response
Description
I'm using cdk-virtual-scroll-viewport and I'm changing dynamically by binding its dir property from ltr to rtl, to obtain a bottom to top scoller. I can see the change in the html, but visually it has no effect.
Reproduction
Steps to reproduce:
- cdk-virtual-scroll-viewport with vertical orientation and rtl dir
Expected Behavior
Vertical scroller, oriented from bottom to top
Actual Behavior
Vertical scroller, oriented from top to bottom, no change vs. vertical orientation and ltr dir.
Environment
- Angular: 12.0.4
- CDK/Material: 12.0.4
- Browser(s): Chrome Version 97.0.4692.71 (Official Build) (64-bit)
- Operating System (e.g. Windows, macOS, Ubuntu): Windows 10 64-bit
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 by reproducing the issue with cdk-virtual-scroll-viewport in vertical orientation, binding its dir property from ltr to rtl. Trace how the viewport handles direction changes and verify the expected bottom-to-top visual orientation; the issue is done when the dynamic change takes effect instead of remaining top-to-bottom.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- angular, typescript
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100