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Isotope CSS3 jQuery cssHooks

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isoTransform.js
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// ========================= getStyleProperty by kangax ===============================
// http://perfectionkills.com/feature-testing-css-properties/
 
var getStyleProperty = (function(){
 
var prefixes = ['Moz', 'Webkit', 'Khtml', 'O', 'Ms'];
var _cache = { };
 
function getStyleProperty(propName, element) {
element = element || document.documentElement;
var style = element.style,
prefixed,
uPropName,
i, l;
 
// check cache only when no element is given
if (arguments.length === 1 && typeof _cache[propName] === 'string') {
return _cache[propName];
}
// test standard property first
if (typeof style[propName] === 'string') {
return (_cache[propName] = propName);
}
// capitalize
uPropName = propName.charAt(0).toUpperCase() + propName.slice(1);
 
// test vendor specific properties
for (i=0, l=prefixes.length; i<l; i++) {
prefixed = prefixes[i] + uPropName;
if (typeof style[prefixed] === 'string') {
return (_cache[propName] = prefixed);
}
}
}
 
return getStyleProperty;
}());
 
var transformProp = getStyleProperty('transform');
 
// ========================= miniModernizr ===============================
// <3<3<3 and thanks to Faruk and Paul for doing the heavy lifting
 
/*!
* Modernizr v1.6ish: miniModernizr for Isotope
* http://www.modernizr.com
*
* Developed by:
* - Faruk Ates http://farukat.es/
* - Paul Irish http://paulirish.com/
*
* Copyright (c) 2009-2010
* Dual-licensed under the BSD or MIT licenses.
* http://www.modernizr.com/license/
*/
 
/*
* This version whittles down the script just to check support for
* CSS transitions, transforms, and 3D transforms.
*/
var docElement = document.documentElement,
vendorCSSPrefixes = ' -o- -moz- -ms- -webkit- -khtml- '.split(' '),
tests = [
{
name : 'csstransforms',
getResult : function() {
return !!transformProp;
}
},
{
name : 'csstransforms3d',
getResult : function() {
var test = !!getStyleProperty('perspective');
// double check for Chrome's false positive
if ( test ){
var st = document.createElement('style'),
div = document.createElement('div'),
mq = '@media (' + vendorCSSPrefixes.join('transform-3d),(') + 'modernizr)';
 
st.textContent = mq + '{#modernizr{height:3px}}';
(document.head || document.getElementsByTagName('head')[0]).appendChild(st);
div.id = 'modernizr';
docElement.appendChild(div);
 
test = div.offsetHeight === 3;
 
st.parentNode.removeChild(st);
div.parentNode.removeChild(div);
}
return !!test;
}
},
{
name : 'csstransitions',
getResult : function() {
return !!getStyleProperty('transitionProperty');
}
}
],
 
i, len = tests.length
;
 
if ( window.Modernizr ) {
// if there's a previous Modernzir, check if there are necessary tests
for ( i=0; i < len; i++ ) {
var test = tests[i];
if ( !Modernizr.hasOwnProperty( test.name ) ) {
// if test hasn't been run, use addTest to run it
Modernizr.addTest( test.name, test.getResult );
}
}
} else {
// or create new mini Modernizr that just has the 3 tests
window.Modernizr = (function(){
 
var miniModernizr = {
_version : '1.6ish: miniModernizr for Isotope'
},
classes = [],
test, result, className;
 
// Run through tests
for ( i=0; i < len; i++ ) {
test = tests[i];
result = test.getResult();
miniModernizr[ test.name ] = result;
className = ( result ? '' : 'no-' ) + test.name;
classes.push( className );
}
 
// Add the new classes to the <html> element.
docElement.className += ' ' + classes.join( ' ' );
 
return miniModernizr;
})();
}
 
 
 
// ========================= isoTransform ===============================
 
/**
* provides hooks for .css({ scale: value, translate: [x, y] })
* Progressively enhanced CSS transforms
* Uses hardware accelerated 3D transforms for Safari
* or falls back to 2D transforms.
*/
if ( Modernizr.csstransforms ) {
// i.e. transformFnNotations.scale(0.5) >> 'scale3d( 0.5, 0.5, 1)'
var transformFnNotations = Modernizr.csstransforms3d ?
{ // 3D transform functions
translate : function ( position ) {
return 'translate3d(' + position[0] + 'px, ' + position[1] + 'px, 0) ';
},
scale : function ( scale ) {
return 'scale3d(' + scale + ', ' + scale + ', 1) ';
}
} :
{ // 2D transform functions
translate : function ( position ) {
return 'translate(' + position[0] + 'px, ' + position[1] + 'px) ';
},
scale : function ( scale ) {
return 'scale(' + scale + ') ';
}
}
;
 
function setIsoTransform ( elem, name, value ) {
var $elem = $(elem),
// unpack current transform data
data = $elem.data('isoTransform') || {},
newData = {},
fnName,
transformObj = {},
transformValue;
 
// i.e. newData.scale = 0.5
newData[ name ] = value;
// extend new value over current data
$.extend( data, newData );
 
for ( fnName in data ) {
transformValue = data[ fnName ];
transformObj[ fnName ] = transformFnNotations[ fnName ]( transformValue );
}
 
// get proper order
// ideally, we could loop through this give an array, but since we only have
// a couple transforms we're keeping track of, we'll do it like so
var translateFn = transformObj.translate || '',
scaleFn = transformObj.scale || '',
// sorting so translate always comes first
valueFns = translateFn + scaleFn;
 
// set data back in elem
$elem.data( 'isoTransform', data );
 
// set name to vendor specific property
elem.style[ transformProp ] = valueFns;
}
// ==================== scale ===================
$.cssNumber.scale = true;
$.cssHooks.scale = {
set: function( elem, value ) {
 
if ( typeof value === 'string' ) {
value = parseFloat( value );
}
 
setIsoTransform( elem, 'scale', value );
 
},
get: function( elem, computed ) {
var transform = $.data( elem, 'isoTransform' );
return transform && transform.scale ? transform.scale : 1;
}
};
 
$.fx.step.scale = function( fx ) {
$.cssHooks.scale.set( fx.elem, fx.now+fx.unit );
};
// ==================== translate ===================
$.cssNumber.translate = true;
$.cssHooks.translate = {
set: function( elem, value ) {
 
// all this would be for public ease-of-use,
// but we're leaving it out since this add-on is
// only for internal-plugin use
// if ( typeof value === 'string' ) {
// value = value.split(' ');
// }
//
//
// var i, val;
// for ( i = 0; i < 2; i++ ) {
// val = value[i];
// if ( typeof val === 'string' ) {
// val = parseInt( val );
// }
// }
 
setIsoTransform( elem, 'translate', value );
 
},
get: function( elem, computed ) {
var transform = $.data( elem, 'isoTransform' );
return transform && transform.translate ? transform.translate : [ 0, 0 ];
}
};
 
}

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