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March 16, 2020 01:05
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Function which creates CSS only ripple effect. For usage w/ JSS. Via CSS it is impossible to watch for mouseclick position, so ripple effect will work only for m 1 prespecified in config place
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interface RippleMixin { | |
vert?: 'top' | 'bottom' | 'center'; | |
hor?: 'left' | 'right' | 'center'; | |
color?: string; | |
opacity?: number; | |
duration?: number; | |
timingFunction?: string; | |
} | |
/** | |
* Creates CSS only ripple effect | |
* | |
* @param [config] - Optional config | |
*/ | |
export function createRipple(config: RippleMixin = { }) { | |
const { | |
color = '#ffffff80', | |
timingFunction = 'cubic-bezier(0.4, 0, 0.2, 1)', | |
duration = 1300, | |
opacity = 1, | |
vert = 'bottom', | |
hor = 'center', | |
} = config; | |
const styles: Record<string, any> = { | |
position: 'relative', | |
overflow: 'hidden', | |
cursor: 'pointer', | |
'&::after': { | |
position: 'absolute', | |
content: '""', | |
display: 'block', | |
width: '500%', | |
height: '500%', | |
borderRadius: '50%', | |
background: color, | |
opacity: 0, | |
transition: `all ${duration}ms ${timingFunction}`, | |
}, | |
'&:active::after': { | |
width: 0, | |
height: 0, | |
opacity: opacity, | |
transition: '0s', | |
}, | |
}; | |
// Center center | |
if (vert === 'center' && hor === 'center') { | |
styles['&::after'].top = '50%'; | |
styles['&::after'].left = '50%'; | |
styles['&::after'].transform = 'translate(-50%, -50%)'; | |
} | |
// Center left | |
if (vert === 'center' && hor === 'left') { | |
styles['&::after'].top = '50%'; | |
styles['&::after'].left = '-50%'; | |
styles['&::after'].transform = 'translateY(-50%)'; | |
} | |
// Center right | |
if (vert === 'center' && hor === 'right') { | |
styles['&::after'].top = '50%'; | |
styles['&::after'].right = '-50%'; | |
styles['&::after'].transform = 'translateY(-50%)'; | |
} | |
// Top center | |
if (vert === 'top' && hor === 'center') { | |
styles['&::after'].top = '-50%'; | |
styles['&::after'].left = '50%'; | |
styles['&::after'].transform = 'translate(-50%)'; | |
} | |
// Top left | |
if (vert === 'top' && hor === 'left') { | |
styles['&::after'].top = '-50%'; | |
styles['&::after'].left = '-50%'; | |
} | |
// Top right | |
if (vert === 'top' && hor === 'right') { | |
styles['&::after'].top = '-50%'; | |
styles['&::after'].right = '-50%'; | |
} | |
// Bottom center | |
if (vert === 'bottom' && hor === 'center') { | |
styles['&::after'].bottom = '-50%'; | |
styles['&::after'].left = '50%'; | |
styles['&::after'].transform = 'translate(-50%)'; | |
} | |
// Bottom left | |
if (vert === 'bottom' && hor === 'left') { | |
styles['&::after'].bottom = '-50%'; | |
styles['&::after'].left = '-50%'; | |
} | |
// Bottom right | |
if (vert === 'bottom' && hor === 'right') { | |
styles['&::after'].bottom = '-50%'; | |
styles['&::after'].right = '-50%'; | |
} | |
return styles; | |
} |
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