04eaa25ab1
Mostly useful for event handlers, setting `e.redraw = false` will prevent mithril from re-rendering.
23 lines
691 B
JavaScript
23 lines
691 B
JavaScript
"use strict"
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module.exports = function(callback) {
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//60fps translates to 16.6ms, round it down since setTimeout requires int
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var time = 16
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var last = 0, pending = null
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var timeout = typeof requestAnimationFrame === "function" ? requestAnimationFrame : setTimeout
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return function(synchronous) {
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var now = new Date().getTime()
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if (typeof synchronous === "object" && "redraw" in synchronous && !synchronous.redraw) return
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if (synchronous === true || last === 0 || now - last >= time) {
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last = now
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callback()
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}
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else if (pending === null) {
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pending = timeout(function() {
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pending = 0
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callback()
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last = new Date().getTime()
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}, time - (now - last))
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}
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}
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}
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