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fix(keyboard-cursor): Recent optimization broke keyboard cursor advancing fast

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Ben Gotow 2015-08-28 14:34:56 -07:00
parent 5ff029d2f9
commit 4fddec48d9
1 changed files with 6 additions and 1 deletions
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7
src/components/list-tabular.cjsx
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@ -101,7 +101,12 @@ class ListTabular extends React.Component
# Determine the exact range of rows we want onscreen
rangeStart = Math.floor(scrollTop / @props.itemHeight)
rangeSize = Math.ceil(window.innerHeight / @props.itemHeight)
rangeEnd = Math.min(rangeStart + rangeSize, @props.dataView.count())
rangeEnd = rangeStart + rangeSize
# Expand the start/end so that you can advance the keyboard cursor fast and
# we have items to move to and then scroll to.
rangeStart = Math.max(0, rangeStart - 5)
rangeEnd = Math.min(rangeEnd + 5, @props.dataView.count())
# Final sanity check to prevent needless work
return if rangeStart is @state.renderedRangeStart and