UNCONFIRMED 24813
Continuous scroll devices shouldn't use an SPI on Mac 
https://bugs.webkit.org/show_bug.cgi?id=24813
Summary Continuous scroll devices shouldn't use an SPI on Mac
Avi Drissman
Reported 2009-03-25 13:22:54 PDT
Currently, to support a continuous scroll device, WheelEventMac uses an SPI (wkGetWheelEventDeltas) (see http://trac.webkit.org/browser/trunk/WebCore/platform/mac/WheelEventMac.mm). This isn't necessary anymore in Leopard. In Chromium, we're using CGEvents to get the data we need. See http://src.chromium.org/viewvc/chrome/trunk/src/webkit/glue/webinputevent_mac.mm . WebKit should switch for two reasons: - The use of SPIs is bad and should be reduced - The measurement of scrolling units should agree across WebKit browsers. For example, the DOM scroll event should have non-accelerated ticks. We have that in Chromium. Does WebKit? It's hard to say as the SPI isn't documented.
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Add attachment proposed patch, testcase, etc.
Ahmad Saleem
Comment 1 2023-10-20 07:30:47 PDT
@Simon - is this still applicable?
Simon Fraser (smfr)
Comment 2 2023-10-24 13:47:35 PDT
Unsure without investigation.
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