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Make m.redraw() strictly asynchronous

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Pierre-Yves Gerardy 2017-02-06 00:58:16 +01:00 • committed by Pierre-Yves Gérardy
parent 38956e119b
commit b004c20f0c
11 changed files with 281 additions and 111 deletions
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17
api/redraw.js
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@ -4,26 +4,23 @@ var coreRenderer = require("../render/render")
function throttle(callback) {
//60fps translates to 16.6ms, round it down since setTimeout requires int
var time = 16
var delay = 16
var last = 0, pending = null
var timeout = typeof requestAnimationFrame === "function" ? requestAnimationFrame : setTimeout
return function() {
var now = Date.now()
if (last === 0 || now - last >= time) {
last = now
callback()
}
else if (pending === null) {
var elapsed = Date.now() - last
if (pending === null) {
pending = timeout(function() {
pending = null
callback()
last = Date.now()
}, time - (now - last))
}, delay - elapsed)
}
}
}
module.exports = function($window) {
module.exports = function($window, throttleMock) {
var _throttle = throttleMock || throttle
var renderService = coreRenderer($window)
renderService.setEventCallback(function(e) {
if (e.redraw !== false) redraw()
@ -32,7 +29,7 @@ module.exports = function($window) {
var callbacks = []
function subscribe(key, callback) {
unsubscribe(key)
callbacks.push(key, throttle(callback))
callbacks.push(key, _throttle(callback))
}
function unsubscribe(key) {
var index = callbacks.indexOf(key)