bug(cdk-drag-drop, cdk-tree): FireFox (mouseenter) not working with cdkDrag
- Dominant language
- TypeScript
- Stars
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- Avg merge
- 1d 8h
- Merged PRs (30d)
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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
## Different behavior with cdkDrag and (mouseenter) between Chrome and Firefox
```
```
### Chrome: (mouseenter) event is triggered successfully, after (cdkDragStarted)
### Firefox: same logic fails
### Reproduction
Steps to reproduce:
1. Create `` structure inside Angular app
2. Add `(mouseenter)` to ``
3. Inside `` add `
4. Compare behavior between Chrome and FireFox
### Expected Behavior
Should be same
### Actual Behavior
Firefox: Failed `(mouseenter)` event execution
Event not triggering after `(cdkDragStarted)`
### Environment
- Angular: 10.2.7
- CDK/Material: 10.2.7
- Browser(s): Chrome 108.0.5359.124, FireFox 108.0.1
- Operating System (e.g. Windows, macOS, Ubuntu): Windows, Fedora
Contributor guide
Research direction
Start by reproducing the cdk-tree example with cdk-nested-tree-node, cdkDrag, and the mouseenter/mouseleave and drag lifecycle events in Firefox and Chrome. Compare whether mouseenter fires after cdkDragStarted; done means the same event behavior is observed in both browsers.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- angular, typescript
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100