Created
January 19, 2017 01:00
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| ratio = (parent = {width: window.innerWidth, height: window.innerHeight }, child) => { | |
| let width, height | |
| if (child.width / parent.width < child.height / parent.height) { | |
| width = parent.width | |
| height = width / child.width * child.height | |
| } else { | |
| height = parent.height | |
| width = height / child.height * child.width | |
| } | |
| const result = { | |
| width, | |
| height, | |
| left: (parent.width - width) / 2, | |
| top: (parent.height - height) / 2, | |
| } | |
| return result | |
| } |
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