AnimateManager.js
1.07 KB
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import setRafTimeout from './setRafTimeout';
export default function createAnimateManager() {
let currStyle = {};
let handleChange = () => null;
let shouldStop = false;
const setStyle = _style => {
if (shouldStop) {
return;
}
if (Array.isArray(_style)) {
if (!_style.length) {
return;
}
const styles = _style;
const [curr, ...restStyles] = styles;
if (typeof curr === 'number') {
setRafTimeout(setStyle.bind(null, restStyles), curr);
return;
}
setStyle(curr);
setRafTimeout(setStyle.bind(null, restStyles));
return;
}
if (typeof _style === 'object') {
currStyle = _style;
handleChange(currStyle);
}
if (typeof _style === 'function') {
_style();
}
};
return {
stop: () => {
shouldStop = true;
},
start: style => {
shouldStop = false;
setStyle(style);
},
subscribe: _handleChange => {
handleChange = _handleChange;
return () => {
handleChange = () => null;
};
},
};
}