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add orginal event to callback param #17

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add orginal event to callback param #17

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6 changes: 4 additions & 2 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -32,8 +32,8 @@ function panZoom (target, cb) {

var impetus

var initX = 0, initY = 0, init = true, srcElement
var initFn = function (e) { init = true, srcElement = e.srcElement }
var initX = 0, initY = 0, init = true, srcElement, event
var initFn = function (e) { init = true, srcElement = e.srcElement, event = e }
target.addEventListener('mousedown', initFn)
target.addEventListener('touchstart', initFn, hasPassive ? { passive: true } : false)

Expand All @@ -49,6 +49,7 @@ function panZoom (target, cb) {

var e = {
srcElement,
event,
target: target,
type: 'mouse',
dx: x - lastX, dy: y - lastY, dz: 0,
Expand All @@ -72,6 +73,7 @@ function panZoom (target, cb) {
if (!isPassive) e.preventDefault()
schedule({
srcElement: e.srcElement,
event: e,
target: target,
type: 'mouse',
dx: 0, dy: 0, dz: dy,
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