439 lines
14 KiB
JavaScript
439 lines
14 KiB
JavaScript
/*
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* based off of Louis-Rémi Babé rotate plugin (https://github.com/lrbabe/jquery.rotate.js)
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*
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* cssTransforms: jQuery cssHooks adding a cross browser, animatible transforms
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*
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* Author Bobby Schultz
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*/
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//
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(function($) {
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var div = document.createElement('div'), divStyle = div.style;
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// give props to those who dont have them
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$.cssProps.transform = divStyle.MozTransform === '' ? 'MozTransform'
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: (divStyle.msTransform === '' ? 'msTransform'
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: (divStyle.WebkitTransform === '' ? 'WebkitTransform'
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: (divStyle.OTransform === '' ? 'OTransform'
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: (divStyle.Transform === '' ? 'Transform' : false))));
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$.cssProps.transformOrigin = divStyle.MozTransformOrigin === '' ? 'MozTransformOrigin'
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: (divStyle.msTransformOrigin === '' ? 'msTransformOrigin'
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: (divStyle.WebkitTransformOrigin === '' ? 'WebkitTransformOrigin'
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: (divStyle.OTransformOrigin === '' ? 'OTransformOrigin'
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: (divStyle.TransformOrigin === '' ? 'TransformOrigin' : false))));
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// define supported or not
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$.support.transform = $.cssProps.transform !== false || divStyle.filter === '' ? true : false;
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$.support.transformOrigin = $.cssProps.transformOrigin !== false ? true : false;
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// if ONLY IE matrixes are supported (IE9 beta6 will use css3)
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$.support.matrixFilter = (divStyle.filter === '' && $.cssProps.transform === false) ? true
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: false;
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div = null;
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// stop if no form of transforms are supported
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if ($.support.transform === false) {
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return;
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}
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// opt out of letting jquery handle the units for custom setters/getters
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$.cssNumber.skew = $.cssNumber.skewX = $.cssNumber.skewY = $.cssNumber.scale = $.cssNumber.scaleX = $.cssNumber.scaleY = $.cssNumber.rotate = $.cssNumber.matrix = true;
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$.cssNumber.transformOrigin = $.cssNumber.transformOriginX = $.cssNumber.transformOriginY = true;
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if ($.support.matrixFilter) {
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$.cssNumber.transformOrigin = $.cssNumber.transformOriginX = $.cssNumber.transformOriginY = true;
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$.cssProps.transformOrigin = 'matrixFilter';
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}
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$.cssHooks.transform = {
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set : function(elem, val, unit) {
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if ($.support.matrixFilter) {
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elem.style.filter = [ val ].join('');
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} else {
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elem.style[$.cssProps.transform] = val + '%';
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}
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},
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get : function(elem, computed) {
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if ($.support.matrixFilter) {
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return elem.style.filter;
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} else {
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return elem.style[$.cssProps.transform];
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}
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}
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};
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$.cssHooks.transformOrigin = {
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set : function(elem, val, unit) {
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if (!$.support.matrixFilter) {
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val = (typeof val === 'string') ? val : val + (unit || '%');
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elem.style[$.cssProps.transformOrigin] = val;
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} else {
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val = val.split(",");
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$.cssHooks.transformOriginX.set(elem, val[0]);
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if (val.length > 1) {
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$.cssHooks.transformOriginY.set(elem, val[1]);
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}
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}
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},
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get : function(elem, computed) {
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if (!$.support.matrixFilter) {
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return elem.style[$.cssProps.transformOrigin];
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} else {
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var originX = $.data(elem, 'transformOriginX');
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var originY = $.data(elem, 'transformOriginY');
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return originX && originY && originX === originY ? originX : '50%';
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}
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}
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};
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$.fx.step.transformOrigin = function(fx) {
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$.cssHooks.transformOrigin.set(fx.elem, fx.now, fx.unit);
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};
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$.cssHooks.transformOriginX = {
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set : function(elem, val, unit) {
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if (!$.support.matrixFilter) {
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val = (typeof val === 'string') ? val : val + (unit || '%');
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elem.style[$.cssProps.transformOrigin + 'X'] = val;
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} else {
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$.data(elem, 'transformOriginX', unit ? val + unit : val);
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setIEMatrix(elem);
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}
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},
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get : function(elem, computed) {
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if (!$.support.matrixFilter) {
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return elem.style[$.cssProps.transformOrigin + 'X'];
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} else {
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var originX = $.data(elem, 'transformOriginX');
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switch (originX) {
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case 'left':
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return '0%';
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case 'center':
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return '50%';
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case 'right':
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return '100%';
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}
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return originX ? originX : '50%';
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}
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}
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};
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$.fx.step.transformOriginX = function(fx) {
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$.cssHooks.transformOriginX.set(fx.elem, fx.now, fx.unit);
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};
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$.cssHooks.transformOriginY = {
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set : function(elem, val, unit) {
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if (!$.support.matrixFilter) {
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val = (typeof val === 'string') ? val : val + (unit || '%');
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elem.style[$.cssProps.transformOrigin + 'Y'] = val;
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} else {
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$.data(elem, 'transformOriginY', unit ? val + unit : val);
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setIEMatrix(elem);
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}
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},
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get : function(elem, computed) {
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if (!$.support.matrixFilter) {
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return elem.style[$.cssProps.transformOrigin + 'Y'];
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} else {
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var originY = $.data(elem, 'transformOriginY');
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switch (originY) {
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case 'top':
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return '0%';
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case 'center':
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return '50%';
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case 'bottom':
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return '100%';
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}
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return originY ? originY : '50%';
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}
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}
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};
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$.fx.step.transformOriginY = function(fx) {
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$.cssHooks.transformOriginY.set(fx.elem, fx.now, fx.unit);
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};
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// create hooks for css transforms
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var rtn = function(v) {
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return v;
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};
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var xy = [ [ 'X', 'Y' ], 'X', 'Y' ];
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var abcdxy = [ [ 'A', 'B', 'C', 'D', 'X', 'Y' ], 'A', 'B', 'C', 'D', 'X', 'Y' ];
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var props = [
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{
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prop : 'rotate',
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matrix : [ function(v) {
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return Math.cos(v);
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}, function(v) {
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return -Math.sin(v);
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}, function(v) {
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return Math.sin(v);
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}, function(v) {
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return Math.cos(v);
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} ],
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unit : 'rad',
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subProps : [ '' ],
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fnc : toRadian
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},
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{
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prop : 'scale',
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matrix : [ [ rtn, 0, 0, rtn ], [ rtn, 0, 0, 1 ], [ 1, 0, 0, rtn ] ],
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unit : '',
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subProps : xy,
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fnc : parseFloat,
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_default : 1
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},
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{
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prop : 'skew',
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matrix : [ [ 1, rtn, rtn, 1 ], [ 1, rtn, 0, 1 ], [ 1, 0, rtn, 1 ] ],
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unit : 'rad',
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subProps : xy,
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fnc : toRadian
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},
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{
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prop : 'translate',
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matrix : [ [ 1, 0, 0, 1, rtn, rtn ], [ 1, 0, 0, 1, rtn, 0 ], [ 1, 0, 0, 1, 0, rtn ] ],
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standardUnit : 'px',
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subProps : xy,
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fnc : parseFloat
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},
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{
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prop : 'matrix',
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matrix : [ [ rtn, rtn, rtn, rtn, rtn, rtn ], [ rtn, 0, 0, 1, 0, 0 ],
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[ 1, rtn, 0, 1, 0, 0 ], [ 1, 0, rtn, 1, 0, 0 ], [ 1, 0, 0, rtn, 0, 0 ],
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[ 1, 0, 0, 1, 0, rtn ] ],
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subProps : abcdxy,
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fnc : parseFloat
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} ];
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jQuery.each(props, function(n, prop) {
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jQuery.each(prop.subProps, function(num, sub) {
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var _cssProp, _prop = prop;
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if ($.isArray(sub)) {
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// composite transform
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_cssProp = _prop.prop;
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var _sub = sub;
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$.cssHooks[_cssProp] = {
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set : function(elem, val, unit) {
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jQuery.each(_sub, function(num, x) {
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$.cssHooks[_cssProp + x].set(elem, val, unit);
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});
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},
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get : function(elem, computed) {
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var val = [];
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jQuery.each(_sub, function(num, x) {
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val.push($.cssHooks[_cssProp + x].get(elem, val));
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});
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// hack until jQuery supports animating multiple properties
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return val[0] || val[1];
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}
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};
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} else {
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// independent transfrom
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_cssProp = _prop.prop + sub;
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$.cssHooks[_cssProp] = {
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set : function(elem, val, unit) {
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$.data(elem, _cssProp, unit ? val + unit : val);
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setCSSTransform(elem, _prop.fnc(unit ? val + unit : val), _cssProp, _prop.unit || unit
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|| _prop.standardUnit);
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},
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get : function(elem, computed) {
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var p = $.data(elem, _cssProp);
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// console.log(_cssProp+'get:'+p);
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return p && p !== undefined ? p : _prop._default || 0;
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}
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};
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}
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$.fx.step[_cssProp] = function(fx) {
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fx.unit = fx.unit === 'px' && $.cssNumber[_cssProp] ? _prop.standardUnit : fx.unit;
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var unit = ($.cssNumber[_cssProp] ? '' : fx.unit);
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$.cssHooks[_cssProp].set(fx.elem, fx.now, fx.unit);
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};
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});
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});
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function setCSSTransform(elem, val, prop, unit) {
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if ($.support.matrixFilter) {
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return setIEMatrix(elem, val);
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}
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// parse css string
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var allProps = parseCSSTransform(elem);
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// check for value to be set
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var a = /[X|Y]/.exec(prop);
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a = (a === null ? '' : a[0] ? a[0] : a);
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prop = /.*[^XY]/.exec(prop)[0];
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unit = unit === undefined ? '' : unit;
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// create return string
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var result = '';
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var wasUpdated = false;
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var arr;
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if (allProps !== null) {
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for ( var item in allProps) {
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arr = allProps[item];
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if (prop === item) {
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// update parsed data with new value
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if (prop !== 'matrix') {
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result += prop + '(';
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result += a === 'X' || a === '' ? val + unit : (arr[0] !== '' ? arr[0]
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: $.cssHooks[prop + 'X'].get(elem) + unit);
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result += a === 'Y' ? ', ' + val + unit : (arr[1] !== '' ? ', ' + arr[1]
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: (prop + 'Y' in $.cssHooks ? ', ' + $.cssHooks[prop + 'Y'].get(elem) + unit : ''));
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result += ') ';
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} else {
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result += val + ' ';
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}
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wasUpdated = true;
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} else {
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// dump parsed data to string
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result += item + '(';
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for ( var i = 0; i < arr.length; i++) {
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result += arr[i];
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if (i < arr.length - 1 && arr[i + 1] !== '') {
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result += ', ';
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} else {
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break;
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}
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}
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result += ') ';
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}
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}
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}
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// if prop was not found to be updated, then dump data
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if (!wasUpdated) {
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result += prop + a + '(' + val + unit + ') ';
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}
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// set all transform properties
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elem.style[$.cssProps.transform] = result;
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}
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function parseCSSTransform(elem) {
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var props, prop, name, transform;
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// break up into single transform calls
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$(elem.style[$.cssProps.transform].replace(/(?:\,\s|\)|\()/g, "|").split(" "))
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// read each data point for the transform call
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.each(function(i, item) {
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if (item !== '') {
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if (props === undefined) {
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props = {};
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}
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prop = item.split("|");
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name = prop.shift();
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transform = /.*[^XY]/.exec(name)[0];
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if (!props[transform]) {
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props[transform] = [ '', '', '', '', '', '' ];
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}
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if (!/Y/.test(name)) {
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props[transform][0] = prop[0];
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}
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if (!/X/.test(name)) {
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props[transform][1] = prop[1];
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}
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if (prop.length == 6) {
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props[transform][2] = prop[2];
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props[transform][3] = prop[3];
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props[transform][4] = prop[4];
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props[transform][5] = prop[5];
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}
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}
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});
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return props !== undefined ? props : null;
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}
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function ieOrigin(o, n, percent) {
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return percent * (o - n);
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}
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function toRadian(value) {
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if (typeof value === 'number') {
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return parseFloat(value);
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}
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if (value.indexOf("deg") != -1) {
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return parseInt(value, 10) * (Math.PI * 2 / 360);
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} else if (value.indexOf("grad") != -1) {
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return parseInt(value, 10) * (Math.PI / 200);
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}
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}
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$.rotate = {
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radToDeg : function radToDeg(rad) {
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return rad * 180 / Math.PI;
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}
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};
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// special case for IE matrix
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function setIEMatrix(elem, mat) {
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var inverse, current, ang, org, originX, originY, runTransform = $.cssProps.transformOrigin === 'matrixFilter' ? true
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: false;
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current = [ $.cssHooks.scaleX.get(elem), toRadian($.cssHooks.skewY.get(elem)),
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toRadian($.cssHooks.skewX.get(elem)), $.cssHooks.scaleY.get(elem),
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$.cssHooks.translateX.get(elem), $.cssHooks.translateY.get(elem) ];
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// start by multiply inverse of transform origin by matrix
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if (runTransform) {
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elem.style.filter = [ "progid:DXImageTransform.Microsoft.Matrix"
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+ "(M11=1,M12=0,M21=0,M22=1,SizingMethod='auto expand')" ].join('');
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var Wp = $.cssHooks.transformOriginX.get(elem);
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var Hp = $.cssHooks.transformOriginY.get(elem);
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Wp = Wp.indexOf('%') > 0 ? (/[\d]*/.exec(Wp) / 100) : Wp;
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Hp = Hp.indexOf('%') > 0 ? (/[\d]*/.exec(Hp) / 100) : Hp;
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var Wb = elem.offsetWidth;
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var Hb = elem.offsetHeight;
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}
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// multiply old matrix to new matrix
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if (typeof mat !== 'array' || mat.length !== 6) {
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mat = current;
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} else {
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mat = [ ((current[0] * mat[0]) + (current[1] * mat[2])),
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((current[0] * mat[1]) + (current[1] * mat[3])),
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((current[2] * mat[0]) + (current[3] * mat[2])),
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((current[2] * mat[1]) + (current[3] * mat[3])), mat[4], mat[5] ];
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}
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// multiply the transform and rotation matrixes
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ang = $.data(elem, 'rotate');
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if (ang) {
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ang = toRadian(ang);
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var cos = Math.cos(ang);
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var sin = Math.sin(ang);
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ang = [ cos, -sin, sin, cos ];
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mat = [ ((mat[0] * ang[0]) + (mat[1] * ang[2])), ((mat[0] * ang[1]) + (mat[1] * ang[3])),
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((mat[2] * ang[0]) + (mat[3] * ang[2])), ((mat[2] * ang[1]) + (mat[3] * ang[3])), mat[4],
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mat[5] ];
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}
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// apply the matrix as a IE filter
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elem.style.filter = [ "progid:DXImageTransform.Microsoft.Matrix(", "M11=" + mat[0] + ", ",
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"M12=" + mat[1] + ", ", "M21=" + mat[2] + ", ", "M22=" + mat[3] + ", ",
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"SizingMethod='auto expand'", ")" ].join('');
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if (runTransform) {
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var Wo = elem.offsetWidth;
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var Ho = elem.offsetHeight;
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elem.style.position = 'relative';
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elem.style.left = Wp * (Wb - Wo) + (parseInt(mat[4]) || 0);
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elem.style.top = Hp * (Hb - Ho) + (parseInt(mat[5]) || 0);
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}
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// $('#console').append('<div>
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// trans:'+Wp+":"+Wb+":"+Wo+":"+mat[4]+":"+elem.style.left+'</div>');
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}
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})(jQuery);
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