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December 30, 2015 17:04
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Small tool for conversion of transform functions from human readable to matrix and matrix3d values
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| /* | |
| * Useful for forcing all transform functions defined in @keyframes to execute simultaneously | |
| * Many (including myself until recently) doesn't know that transform functions defined | |
| * into @keyframes doesn't play simultaneously | |
| * but in reversed order of declaration | |
| * | |
| * More info about this issue: | |
| * https://css-tricks.com/debugging-css-keyframe-animations/ | |
| * | |
| * USAGE | |
| * simply calcaulate matrix by: | |
| * 1. including this script in somewhere in <body> | |
| * 2. doing the job with MatrixConv('transform value') | |
| * | |
| * for example: MatrixConv('rotate(180deg) translate3d(199px, 20px,0)') | |
| * returns 'matrix(-1, 1.22465e-16, -1.22465e-16, -1, -199, -20)' | |
| -------------------- | |
| */ | |
| window.MatrixConv=window.MatrixConv||(function(w,d){ | |
| var div = d.createElement('div'), transformProperty; | |
| div.style.visibility='hidden'; | |
| div.style.position='absolute'; | |
| if('transform' in div.style){ | |
| transformProperty='transform' | |
| } else if( 'WebkitTransform' in div.style ){ | |
| transformProperty='webkitTransform' | |
| } else if('MozTransform' in div.style){ | |
| transformProperty='MozTransform' | |
| } else if('OTransform' in div.style){ | |
| transformProperty='OTransform' | |
| } | |
| return function(transformReadable){ | |
| div.style[transformProperty]=transformReadable; | |
| d.body.appendChild(div); | |
| var computed = w.getComputedStyle(div,null), | |
| computedTransform = computed[transformProperty]; | |
| d.body.removeChild(div); | |
| div.style[transformProperty]='none'; | |
| return computedTransform; | |
| } | |
| })(window,document) |
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