[EventTiming] Use the first event-timestamp instead of the last for coalesced events in Event Timing |
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Issue descriptionCoalesed Events pose complexity for event timing. On deciding the start time in Event Timing for coalesed events, we should use the start time of the coalesced events. getCoalescedEvents API provides a way for us to obtain the first event in coalesced events. However, the API is only availble for pointerEvent: https://developer.mozilla.org/en-US/docs/Web/API/PointerEvent/getCoalescedEvents We want to do the same for other event types upon the availability of getCoalescedEvents API for other event types.
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May 22 2018
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Sep 10
@tdresser, coalesced events is only defined for pointer event, right? The bug has been fixed for pointer event. https://cs.chromium.org/chromium/src/third_party/blink/renderer/core/timing/event_timing.cc?rcl=7a6e2a989d288dbf97884a6fe0a0d5d7f71259c9&l=54 If there is no plan to define other coalesced events, i would suggest closing this bug.
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Sep 10
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Comment 1 by maxlg@chromium.org
, Apr 11 2018