You move the pointer over an input field, press a key top, and there is a 200-500ms delay before the character appears. Root Cause: The OS’s pointer polling rate (125Hz default on some mice) is out of sync with the keyboard’s scan rate. The focus registration logic is waiting for a "stable hover" threshold. Solution:
When a user places a finger on the pointer focus registration key top, the following sequence occurs: pointer focus registration key top
These concepts interact: a pointer produces events; those events are dispatched according to focus rules and to any targets that registered handlers. Registration keys let systems manage the lifecycle of handlers and focus ownership. You move the pointer over an input field,
: High-end registration keys often use "Top-Mount" or "Gasket-Mount" systems to ensure the focus of the press is centered and consistent. Materiality Solution: When a user places a finger on
For example, if a dropdown menu overlaps a button, and the user hovers over the overlapping area: