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Bug in handler event.type='touchend'

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In Chorme.
while event.type = "touchend” ,  event.touches is a empty TouchList,
event.touches.length === 0
This commit is contained in:
wuchangming 2015-11-27 11:16:54 +08:00
parent 5a1c968105
commit 7aa2fd1af3
1 changed files with 3 additions and 3 deletions
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6
src/core/core.helpers.js
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@ -333,7 +333,7 @@
var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2));
var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2));
var s01 = d01 / (d01 + d12);
var s12 = d12 / (d01 + d12);
@ -624,7 +624,7 @@
canvas = evt.currentTarget || evt.srcElement,
boundingRect = canvas.getBoundingClientRect();
if (e.touches) {
if (e.touches && e.touches.length > 0) {
mouseX = e.touches[0].clientX;
mouseY = e.touches[0].clientY;
@ -634,7 +634,7 @@
}
// Scale mouse coordinates into canvas coordinates
// by following the pattern laid out by 'jerryj' in the comments of
// by following the pattern laid out by 'jerryj' in the comments of
// http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/
// We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However