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https://github.com/jgraph/mxgraph/issues/507 

Fix for https://github.com/jgraph/mxgraph/issues/507
development
David Benson 2020-11-11 12:42:02 +00:00 committed by GitHub
parent 2ddf5448ea
commit 5d4f1976e9
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 18 additions and 3 deletions
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21
javascript/src/js/util/mxEvent.js
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@ -40,9 +40,26 @@ var mxEvent =
if (window.addEventListener)
{
// Checks if passive event listeners are supported
// see https://github.com/Modernizr/Modernizr/issues/1894
var supportsPassive = false;
try
{
document.addEventListener('test', function() {}, Object.defineProperty &&
Object.defineProperty({}, 'passive', {get: function()
{supportsPassive = true;}}));
}
catch (e)
{
// ignore
}
return function(element, eventName, funct)
{
element.addEventListener(eventName, funct, false);
element.addEventListener(eventName, funct,
(supportsPassive) ?
{passive: false} : false);
updateListenerList(element, eventName, funct);
};
}
@ -360,8 +377,6 @@ var mxEvent =
evt.preventDefault();
}
var delta = -evt.deltaY;
// Handles the event using the given function
if (Math.abs(evt.deltaX) > 0.5 || Math.abs(evt.deltaY) > 0.5)
{