perf: use scheduling.isInputPending() (#1996)
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193db0aa15
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02019e9251
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@ -15,9 +15,19 @@ function getRIC () {
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return typeof requestIdleCallback !== 'undefined' ? requestIdleCallback : liteRIC
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return typeof requestIdleCallback !== 'undefined' ? requestIdleCallback : liteRIC
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}
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}
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function getIsInputPending () {
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return process.browser && navigator.scheduling && navigator.scheduling.isInputPending
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? () => navigator.scheduling.isInputPending()
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: () => false // just assume input is not pending on browsers that don't support this
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}
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const isInputPending = getIsInputPending()
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function runTasks (deadline) {
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function runTasks (deadline) {
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mark('scheduleIdleTask:runTasks()')
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mark('scheduleIdleTask:runTasks()')
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while (taskQueue.length && deadline.timeRemaining() > 0) {
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// Bail out early if our deadline has passed (probably ~50ms) or if there is input pending
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// See https://web.dev/isinputpending/
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while (taskQueue.length && deadline.timeRemaining() > 0 && !isInputPending()) {
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const task = taskQueue.shift()
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const task = taskQueue.shift()
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try {
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try {
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task()
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task()
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