bug(Tooltip): Prevents touch scrolling
- Dominant language
- TypeScript
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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
Duplicate of (closed) https://github.com/angular/components/issues/4892
`MatTooltip` triggers with `matTooltipTouchGestures` set to `auto` (default) or `on` break page scrolling on touch devices. When set to either of these values the directive sets `touch-action: none` on the trigger, which breaks native page scrolling.
On a page with many tooltip triggers (e.g. dense links) it can be difficult to scroll the page at all.
Setting `matTooltipTouchGestures` to `off` fixes scrolling, but makes tooltips inaccessible on touch devices.
### Reproduction
Reproduction taken from https://github.com/angular/components/issues/4892#issuecomment-832516128
Steps to reproduce:
1. Open https://stackblitz.com/edit/angular-ylctyk on a touch device (phone, touch laptop) in Chrome
2. Scroll the page by initiating a touch on the white background
3. Attempt to scroll the page by initiating a touch on the black box
### Expected Behavior
Page scrolls
### Actual Behavior
Page does not scroll
### Environment
- Angular: Latest Google-internal version
- CDK/Material: Latest Google-internal version
- Browser(s): Chrome 104
- Operating System (e.g. Windows, macOS, Ubuntu): Android
Contributor guide
Research direction
Start with the MatTooltip directive and reproduce the issue using the linked StackBlitz example on an Android touch device in Chrome 104. The fix is done when the page scrolls from a touch on a tooltip trigger while touch tooltips remain available; verify both the default or auto setting and on.
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
- 42/100