[change] ResponderEventPlugin filters browser emulated mouse events #938
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Browsers dispatch mouse events after touch events: https://developer.mozilla.org/en-US/docs/Web/API/Touch_events/Supporting_both_TouchEvent_and_MouseEvent There have been several attempts to avoid this behaviour affecting the ResponderEvent system. The previous approach of cancelling the event in the `onResponderRelease` event handler can end up cancelling other events that are expected, e.g., `focus`. Instead, this patch changes the `ResponderEventPlugin.extractEvents` function to filter the mouse events that occur a short time after a touch event. (It's assumed that people will not be clicking a mouse within a few hundred ms of performing a touch.) This allows the ResponderEvent system to function as expected and leaves other callbacks to fire as they would be expected to in React DOM, i.e., both 'onTouchStart' and 'onMouseDown' will be called following a touch start. Fix #932 Ref #802
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Looking for people to test this out in their apps to make sure there are no regressions or unexpected issues. |
necolas
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May 18, 2018
Browsers dispatch mouse events after touch events: https://developer.mozilla.org/en-US/docs/Web/API/Touch_events/Supporting_both_TouchEvent_and_MouseEvent There have been several attempts to avoid this behaviour affecting the ResponderEvent system. The previous approach of cancelling the event in the `onResponderRelease` event handler can end up cancelling other events that are expected, e.g., `focus`. Instead, this patch changes the `ResponderEventPlugin.extractEvents` function to filter the mouse events that occur a short time after a touch event. (It's assumed that people will not be clicking a mouse within a few hundred ms of performing a touch.) This allows the ResponderEvent system to function as expected and leaves other callbacks to fire as they would be expected to in React DOM, i.e., both `onTouchStart` and `onMouseDown` will be called following a touch start. Fix #932 Close #938 Ref #802
necolas
added a commit
that referenced
this pull request
May 18, 2018
Browsers dispatch mouse events after touch events: https://developer.mozilla.org/en-US/docs/Web/API/Touch_events/Supporting_both_TouchEvent_and_MouseEvent There have been several attempts to avoid this behaviour affecting the ResponderEvent system. The previous approach of cancelling the event in the `onResponderRelease` event handler can end up cancelling other events that are expected, e.g., `focus`. Instead, this patch changes the `ResponderEventPlugin.extractEvents` function to filter the mouse events that occur a short time after a touch event. (It's assumed that people will not be clicking a mouse within a few hundred ms of performing a touch.) This allows the ResponderEvent system to function as expected and leaves other callbacks to fire as they would be expected to in React DOM, i.e., both `onTouchStart` and `onMouseDown` will be called following a touch start. Fix #835 Fix #888 Fix #932 Close #938 Ref #802
muratakbal
pushed a commit
to mdcollab/react-native-web
that referenced
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Aug 1, 2018
Browsers dispatch mouse events after touch events: https://developer.mozilla.org/en-US/docs/Web/API/Touch_events/Supporting_both_TouchEvent_and_MouseEvent There have been several attempts to avoid this behaviour affecting the ResponderEvent system. The previous approach of cancelling the event in the `onResponderRelease` event handler can end up cancelling other events that are expected, e.g., `focus`. Instead, this patch changes the `ResponderEventPlugin.extractEvents` function to filter the mouse events that occur a short time after a touch event. (It's assumed that people will not be clicking a mouse within a few hundred ms of performing a touch.) This allows the ResponderEvent system to function as expected and leaves other callbacks to fire as they would be expected to in React DOM, i.e., both `onTouchStart` and `onMouseDown` will be called following a touch start. Fix necolas#835 Fix necolas#888 Fix necolas#932 Close necolas#938 Ref necolas#802
doxiaodong
reviewed
Nov 12, 2019
| lastActiveTouchTimestamp = Date.now(); | ||
| } else if (lastActiveTouchTimestamp && nativeEvent.type.indexOf('mouse') > -1) { | ||
| const now = Date.now(); | ||
| shouldSkipMouseAfterTouch = lastActiveTouchTimestamp - now < 250; |
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This doesn't work when there is a window.alert call @necolas
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it means if you call window.alert in onPress , and then shouldSkipMouseAfterTouch is not work right
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Ok. Maybe don't call alert
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Right, But people may not understand this. Is there a way to record timestamp after onPress called tick
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Browsers dispatch mouse events after touch events:
https://developer.mozilla.org/en-US/docs/Web/API/Touch_events/Supporting_both_TouchEvent_and_MouseEvent
There have been several attempts to avoid this behaviour affecting the
ResponderEvent system. The previous approach of cancelling the event in
the
onResponderReleaseevent handler can end up cancelling otherevents that are expected, e.g.,
focus.Instead, this patch changes the
ResponderEventPlugin.extractEventsfunction to filter the mouse events that occur a short time after a
touch event. (It's assumed that people will not be clicking a mouse
within a few hundred ms of performing a touch.) This allows the
ResponderEvent system to function as expected and leaves other callbacks
to fire as they would be expected to in React DOM, i.e., both
'onTouchStart' and 'onMouseDown' will be called following a touch start.
Fix #932
Ref #802