This patch completely reworks the slip operator from the ground up,
reorganizing code to be simpler and adding more clarifying documentation.
Major Changes:
- Add modal keymap to the operator along with an interactive status bar.
- Show offset overlays to the left and right of strips whenever slipping.
- Add option to "clamp" slipped strips.
- Rework input to be accumulative, avoiding "jumps" when transitioning in/out
of precision mode.
Fixes:
- Properly draw header when initializing operator before any events have been
sent, and reorganize event flow so that all events have an immediate effect.
- Properly clamp subframe slips.
More information in PR.
Pull Request: https://projects.blender.org/blender/blender/pulls/137072
fe1e866fb9