54 lines
1.3 KiB
JavaScript
54 lines
1.3 KiB
JavaScript
module.exports = {
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timeout,
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queryAsync,
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findAsync,
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pollUntilTruthy,
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}
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function timeout (time) {
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return new Promise((resolve, reject) => {
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setTimeout(resolve, time || 1500)
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})
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}
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async function findAsync (container, selector, opts) {
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try {
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return await pollUntilTruthy(() => {
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const result = container.find(selector)
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if (result.length > 0) return result
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}, opts)
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} catch (err) {
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throw new Error(`Failed to find element within interval: "${selector}"`)
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}
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}
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async function queryAsync (jQuery, selector, opts) {
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try {
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return await pollUntilTruthy(() => {
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const result = jQuery(selector)
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if (result.length > 0) return result
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}, opts)
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} catch (err) {
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throw new Error(`Failed to find element within interval: "${selector}"`)
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}
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}
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async function pollUntilTruthy (fn, opts = {}) {
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const pollingInterval = opts.pollingInterval || 100
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const timeoutInterval = opts.timeoutInterval || 5000
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const start = Date.now()
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let result
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while (!result) {
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// check if timedout
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const now = Date.now()
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if ((now - start) > timeoutInterval) {
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throw new Error(`pollUntilTruthy - failed to return truthy within interval`)
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}
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// check for result
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result = fn()
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// run again after timeout
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await timeout(pollingInterval, timeoutInterval)
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}
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return result
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}
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