22 lines
611 B
JavaScript
22 lines
611 B
JavaScript
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// Waits for element 'el' to exist in the DOM of 'doc' before executing 'callback'
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// Useful when elements are created asynchronously, e.g. after a Web Worker task
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function waitForElement(doc, el, callback) {
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var time = 0,
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interval = 10,
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timeout = 5000;
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var checkEl = setInterval(function() {
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if (doc.querySelector(el)) {
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clearInterval(checkEl);
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if (callback) callback();
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}
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time += interval;
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if (time > timeout) {
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ok(false, 'waitForElement timed out on element: '+el);
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clearInterval(checkEl);
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if (callback) callback(true);
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}
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}, interval);
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}
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