fix(overlay): Prevent scrolling with wheel and touchpad when BlockScrollStrategy is set on Safari - #17274
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fix(overlay): Prevent scrolling with wheel and touchpad when BlockScrollStrategy is set on Safari#17274mddragnev wants to merge 1 commit into
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Pull request overview
Fixes Safari-specific behavior where BlockScrollStrategy fails to prevent scrolling early enough by intercepting wheel/touch scrolling input before the browser scrolls.
Changes:
- Add non-passive
wheelandtouchmovelisteners that callpreventDefault()to block scroll before it occurs (Safari fix for #17217). - Keep the existing capture
scrolllistener as a fallback for keyboard-driven scrolling. - Add cleanup for the new listeners on
detach().
| this._sourceElement.scrollLeft = this._initialScrollLeft; | ||
| }; | ||
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| private preventDefault = (ev: Event) => { |
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| // This also fixes Safari bug #17217 where the scroll event fires after the compositor has already | ||
| // scrolled, making scroll-position reset ineffective for wheel/touch input. | ||
| this._document.addEventListener('wheel', this.preventDefault, { passive: false }); | ||
| this._document.addEventListener('touchmove', this.preventDefault, { passive: false }); | ||
| // Handles keyboard-driven scrolling (arrow keys, spacebar, Page Up/Down) as a fallback, |
|
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…uchmove
Closes #17217
Description
Prevent scroll from mouse/trackpad/touch before it occurs.
This also fixes the Safari case where the scroll event fires after the compositor has already scrolled, making scroll-position reset ineffective for wheel/touch input.
Type of Change (check all that apply):
How Has This Been Tested?
Test Configuration:
Screenshots / Recordings
Checklist:
feature/README.MDupdates for the feature docsREADME.MDCHANGELOG.MDupdates for newly added functionalityng updatemigrations for the breaking changes (migrations guidelines)