1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/**
* Handles parsing, caching, and detecting changes to box-shadow CSS
* @constructor
* @param {Element} el the target element
*/
PIE.BoxShadowStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
cssProperty: 'box-shadow',
styleProperty: 'boxShadow',
parseCss: function( css ) {
var props,
getLength = PIE.getLength,
Type = PIE.Tokenizer.Type,
tokenizer;
if( css ) {
tokenizer = new PIE.Tokenizer( css );
props = { outset: [], inset: [] };
function parseItem() {
var token, type, value, color, lengths, inset, len;
while( token = tokenizer.next() ) {
value = token.tokenValue;
type = token.tokenType;
if( type & Type.OPERATOR && value === ',' ) {
break;
}
else if( token.isLength() && !lengths ) {
tokenizer.prev();
lengths = tokenizer.until( function( token ) {
return !token.isLength();
} );
}
else if( type & Type.COLOR && !color ) {
color = value;
}
else if( type & Type.IDENT && value === 'inset' && !inset ) {
inset = true;
}
else { //encountered an unrecognized token; fail.
return false;
}
}
len = lengths && lengths.length;
if( len > 1 && len < 5 ) {
( inset ? props.inset : props.outset ).push( {
xOffset: getLength( lengths[0].tokenValue ),
yOffset: getLength( lengths[1].tokenValue ),
blur: getLength( lengths[2] ? lengths[2].tokenValue : '0' ),
spread: getLength( lengths[3] ? lengths[3].tokenValue : '0' ),
color: PIE.getColor( color || 'currentColor' )
} );
return true;
}
return false;
}
while( parseItem() ) {}
}
return props && ( props.inset.length || props.outset.length ) ? props : null;
}
} );
|
