b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
28 lines
1,018 B
JavaScript
Executable file
28 lines
1,018 B
JavaScript
Executable file
'use strict';
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/**
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* transitionend is not guaranteed to be async after a layout recalulation.
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* Specifically, a clientHeight read might trigger sync dispatch of
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* transitionend event to listeners, which could end up calling the function
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* that did the clientHeight, but the first call would still be stuck waiting
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* on the clientHeight read to finish. The issue is tracked in bug 1135960. This
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* is a workaround for that, to guarantee async dispatch by using the async
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* nature of promise .then callbacks.
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*/
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define(function(require, exports, module) {
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return function transitionEnd(node, fn, capturing) {
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function asyncFn(event) {
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Promise.resolve().then(function() {
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fn(event);
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})
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.catch(function(error) {
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console.error(error);
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});
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}
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node.addEventListener('transitionend', asyncFn, capturing);
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// Return the function used with addEventListener to allow the caller of
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// this helper to later call removeEventListener.
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return asyncFn;
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};
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});
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