[transitions] Performance improvements & misc fixes by mj12albert · Pull Request #48151 · mui/material-ui (original) (raw)

Closes #19458
Closes #34864

Updates Slide/Grow/Fade/Collapse to avoid creating a new style object whenever possible (no external style prop), and clear transitions set on inline styles to free up the compositor layer on invisible elements

Additional fixes:

• Removed isWebKit154 workaround as it's already outside browserslistrc
• Removed -webkit-transform / -webkit-transition as supported browsers don't require the prefix anymore
• Factor out shared normalizedTransitionCallback
• Improved some tests
• I have followed (at least) the PR section of the contributing guide.