cartodb4/perfect-scrollbar
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Avoid the 'divide by zero' problem in bindMobileTouchHandler.

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Hyunje Alex Jun 2014-01-28 14:51:53 +09:00
parent aa0b57c51d
commit fa51f455fe
1 changed files with 7 additions and 3 deletions
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10
src/perfect-scrollbar.js
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@ -462,9 +462,13 @@
startCoords = currentCoords; startCoords = currentCoords;
var currentTime = (new Date()).getTime(); var currentTime = (new Date()).getTime();
speed.x = differenceX / (currentTime - startTime);
speed.y = differenceY / (currentTime - startTime); var timeGap = currentTime - startTime;
startTime = currentTime; if (timeGap > 0) {
speed.x = differenceX / timeGap;
speed.y = differenceY / timeGap;
startTime = currentTime;
}
e.preventDefault(); e.preventDefault();
} }