Test case for React Motion issue #294.
When the animation has a low frame rate, React Motion's restarting logic restarts the animation constantly.
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March 3, 2016 08:13
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React Motion Issue #294
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| margin:0; | |
| font-family: Helvetica, sans-serif; | |
| font-size: 3em; | |
| } | |
| .item { | |
| position: absolute; | |
| width: 5px; | |
| height: 5px; | |
| opacity: 0.5; | |
| background-color: #f55; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="app" /> | |
| <script src="https://npmcdn.com/trafo"></script> | |
| <script src="https://npmcdn.com/react/dist/react.min.js"></script> | |
| <script src="https://npmcdn.com/react-dom/dist/react-dom.min.js"></script> | |
| <script src="https://npmcdn.com/[email protected]/build/react-motion.js"></script> | |
| <script type="text/babel"> | |
| const {TransitionMotion, spring, presets} = ReactMotion; | |
| const getStyle = (d) => ({ | |
| key: d.key, | |
| style: { | |
| x: spring(d.x), | |
| y: spring(d.y) | |
| } | |
| }); | |
| const getDefaultStyle = (d) => ({ | |
| key: d.key, | |
| style: { | |
| x: 480, | |
| y: 250 | |
| } | |
| }); | |
| const data = Array(5000).fill(1).map((d, i) => ({key: String(i), x: Math.random() * 960, y: Math.random() * 500})); | |
| const Item = ({key, style}) => <div className='item' style={{transform: `translate(${style.x}px,${style.y}px)`}}>{key}</div>; | |
| const Lots = ({data}) => ( | |
| <TransitionMotion | |
| styles={data.map(getStyle)} | |
| defaultStyles={data.map(getDefaultStyle)} | |
| > | |
| {(motionStyles) => ( | |
| <div> | |
| {motionStyles.map((props) => <Item {...props} />)} | |
| </div> | |
| )} | |
| </TransitionMotion> | |
| ); | |
| ReactDOM.render( | |
| <Lots data={data} />, | |
| document.getElementById('app') | |
| ); | |
| </script> | |
| </body> |
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