| Feature | Status | ETA | Owner |
| Support High Resolution Scrolling on Windows | Patch in progress | YYYY-MM-DD | Faaborg |
Summary
We need to enable users on windows to scroll with pixel level precision (when using a non-discrete wheel), similar to the fine grained level of control that users currently have on OS X. Windows Vista introduced standard mouse events that contain a higher level of scrolling precision for mouse wheel movement in 2006. Non discrete mouse wheels have been in the marketplace for awhile now, and mouse drivers are sending these events to applications.
Team
Who's working on this?
- Feature Manager: Alex Faaborg
- Lead Developer: Masayuki Nakano
- Product Manager: Alex Faaborg
- QA: (unknown)
- UX: Alex Faaborg
- Security: (no security implications)
- Privacy: (no privacy implications)
- Etc.
Release Requirements
After we land the patch we need enough time for testing, since there is a wide range of mouse hardware out on the market (especially on Windows).
Next Steps
Land patch for testing.
Open Issues
Related Bugs & Dependencies
Links to the feature tracking bug & other relevant bugs; links to related plans (test plan, product marketing plan, etc.); notes about things that depend on this, etc.
Designs
Just pixel level scrolling precision, similar to scrolling in Firefox on OS X. Currently on Windows we only do line scrolling.
Use Cases
"Scrolls like butter"
Test Plans
Any and all test plans and strategies. Either inline or linked to.
Goals
The goal is to scroll on Windows as well as Firefox on OS X. The fact that we only do line scrolling on windows impacts our perceived performance and responsiveness, and the general feel of the application. Scrolling is something that users do literally constantly with a Web browser (much more than any other interaction or UI control), so changes to how the application scrolls should respectively be prioritized extremely high. The fact that we don't support an important scrolling feature of Windows that was introduced 5 years ago may be indicative of just how few people at Mozilla actually use Firefox on Windows.
Non-Goals
Note that this bug is different than bug 590022. Our smooth scrolling preference simply draws 10 frames when we receive an event that the user has moved their mouse wheel a single discrete step. This project is about fine grained precision, and non-discrete mouse wheels.