forked from cybrespace/pinafore
fix requestIdleCallback not defined in Edge (#180)
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@ -8,13 +8,19 @@ import { mark, stop } from './marks'
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const taskQueue = new Queue()
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let runningRequestIdleCallback = false
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function getRIC () {
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// we load polyfills asynchronously, so there's a tiny chance this is not defined
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return typeof requestIdleCallback !== 'undefined' ? requestIdleCallback : setTimeout
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}
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function runTasks (deadline) {
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mark('scheduleIdleTask:runTasks()')
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while (taskQueue.length && deadline.timeRemaining() > 0) {
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taskQueue.shift()()
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}
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if (taskQueue.length) {
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requestIdleCallback(runTasks)
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let rIC = getRIC()
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rIC(runTasks)
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} else {
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runningRequestIdleCallback = false
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}
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@ -25,6 +31,7 @@ export function scheduleIdleTask (task) {
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taskQueue.push(task)
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if (!runningRequestIdleCallback) {
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runningRequestIdleCallback = true
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requestIdleCallback(runTasks)
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let rIC = getRIC()
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rIC(runTasks)
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}
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}
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