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Issue #228 : Zoom is very slow on Firefox

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jdescottes 2014-11-01 14:00:35 +01:00
parent 001e35cf7b
commit 54837d0e21
1 changed files with 2 additions and 1 deletions
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3
src/js/controller/DrawingController.js
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@ -236,7 +236,8 @@
ns.DrawingController.prototype.onMousewheel_ = function (jQueryEvent) { ns.DrawingController.prototype.onMousewheel_ = function (jQueryEvent) {
var event = jQueryEvent.originalEvent; var event = jQueryEvent.originalEvent;
var delta = event.wheelDeltaY || (-2 * event.deltaY); // Ratio between wheelDeltaY (mousewheel event) and deltaY (wheel event) is -40
var delta = event.wheelDeltaY || (-40 * event.deltaY);
var modifier = Math.abs(delta/120); var modifier = Math.abs(delta/120);
if (delta > 0) { if (delta > 0) {
this.increaseZoom_(modifier); this.increaseZoom_(modifier);