You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
39 lines
731 B
39 lines
731 B
export function buffer (fn, ms) {
|
|
let timer
|
|
|
|
function clear () {
|
|
if (timer) {
|
|
clearTimeout(timer)
|
|
timer = null
|
|
}
|
|
}
|
|
|
|
function bufferFn () {
|
|
clear()
|
|
timer = setTimeout(fn, ms)
|
|
}
|
|
|
|
bufferFn.clear = clear
|
|
|
|
return bufferFn
|
|
}
|
|
|
|
export function isSamePoint (prev, next) {
|
|
if (prev === next) return true
|
|
if (!prev || !next) return false
|
|
|
|
if ('pageX' in next && 'pageY' in next) {
|
|
return prev.pageX === next.pageX && prev.pageY === next.pageY
|
|
}
|
|
|
|
if ('clientX' in next && 'clientY' in next) {
|
|
return prev.clientX === next.clientX && prev.clientY === next.clientY
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
export function isWindow (obj) {
|
|
return obj && typeof obj === 'object' && obj.window === obj
|
|
}
|