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| 1 | <?php |
| 2 | /** |
| 3 | * @private |
| 4 | * @see less-2.5.3.js#Unit.prototype |
| 5 | */ |
| 6 | class Less_Tree_Unit extends Less_Tree { |
| 7 | |
| 8 | public $numerator = []; |
| 9 | public $denominator = []; |
| 10 | public $backupUnit; |
| 11 | |
| 12 | public function __construct( $numerator = [], $denominator = [], $backupUnit = null ) { |
| 13 | $this->numerator = $numerator; |
| 14 | $this->denominator = $denominator; |
| 15 | sort( $this->numerator ); |
| 16 | sort( $this->denominator ); |
| 17 | $this->backupUnit = $backupUnit ?? $numerator[0] ?? null; |
| 18 | } |
| 19 | |
| 20 | public function clone() { |
| 21 | // we are recreating a new object to trigger logic from constructor |
| 22 | return new Less_Tree_Unit( $this->numerator, $this->denominator, $this->backupUnit ); |
| 23 | } |
| 24 | |
| 25 | /** |
| 26 | * @see Less_Tree::genCSS |
| 27 | */ |
| 28 | public function genCSS( $output ) { |
| 29 | $strictUnits = Less_Parser::$options['strictUnits']; |
| 30 | |
| 31 | if ( count( $this->numerator ) === 1 ) { |
| 32 | $output->add( $this->numerator[0] ); // the ideal situation |
| 33 | } elseif ( !$strictUnits && $this->backupUnit ) { |
| 34 | $output->add( $this->backupUnit ); |
| 35 | } elseif ( !$strictUnits && $this->denominator ) { |
| 36 | $output->add( $this->denominator[0] ); |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | public function toString() { |
| 41 | $returnStr = implode( '*', $this->numerator ); |
| 42 | foreach ( $this->denominator as $d ) { |
| 43 | $returnStr .= '/' . $d; |
| 44 | } |
| 45 | return $returnStr; |
| 46 | } |
| 47 | |
| 48 | public function __toString() { |
| 49 | return $this->toString(); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * @param self $other |
| 54 | */ |
| 55 | public function compare( $other ) { |
| 56 | return $this->is( $other->toString() ) ? 0 : -1; |
| 57 | } |
| 58 | |
| 59 | public function is( $unitString ) { |
| 60 | return strtoupper( $this->toString() ) === strtoupper( $unitString ); |
| 61 | } |
| 62 | |
| 63 | public function isLength() { |
| 64 | $css = $this->toCSS(); |
| 65 | return (bool)preg_match( '/px|em|%|in|cm|mm|pc|pt|ex/', $css ); |
| 66 | } |
| 67 | |
| 68 | // TODO: Remove unused method |
| 69 | public function isAngle() { |
| 70 | return isset( Less_Tree_UnitConversions::$angle[$this->toCSS()] ); |
| 71 | } |
| 72 | |
| 73 | public function isEmpty() { |
| 74 | return !$this->numerator && !$this->denominator; |
| 75 | } |
| 76 | |
| 77 | public function isSingular() { |
| 78 | return count( $this->numerator ) <= 1 && !$this->denominator; |
| 79 | } |
| 80 | |
| 81 | public function usedUnits() { |
| 82 | $result = []; |
| 83 | |
| 84 | foreach ( Less_Tree_UnitConversions::$groups as $groupName ) { |
| 85 | $group = Less_Tree_UnitConversions::${$groupName}; |
| 86 | |
| 87 | foreach ( $this->numerator as $atomicUnit ) { |
| 88 | if ( isset( $group[$atomicUnit] ) && !isset( $result[$groupName] ) ) { |
| 89 | $result[$groupName] = $atomicUnit; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | foreach ( $this->denominator as $atomicUnit ) { |
| 94 | if ( isset( $group[$atomicUnit] ) && !isset( $result[$groupName] ) ) { |
| 95 | $result[$groupName] = $atomicUnit; |
| 96 | } |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | return $result; |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * @see less-2.5.3.js#Unit.prototype.cancel |
| 105 | */ |
| 106 | public function cancel() { |
| 107 | $counter = []; |
| 108 | |
| 109 | foreach ( $this->numerator as $atomicUnit ) { |
| 110 | $counter[$atomicUnit] = ( $counter[$atomicUnit] ?? 0 ) + 1; |
| 111 | } |
| 112 | |
| 113 | foreach ( $this->denominator as $atomicUnit ) { |
| 114 | $counter[$atomicUnit] = ( $counter[$atomicUnit] ?? 0 ) - 1; |
| 115 | } |
| 116 | |
| 117 | $this->numerator = []; |
| 118 | $this->denominator = []; |
| 119 | |
| 120 | foreach ( $counter as $atomicUnit => $count ) { |
| 121 | if ( $count > 0 ) { |
| 122 | for ( $i = 0; $i < $count; $i++ ) { |
| 123 | $this->numerator[] = $atomicUnit; |
| 124 | } |
| 125 | } elseif ( $count < 0 ) { |
| 126 | for ( $i = 0; $i < -$count; $i++ ) { |
| 127 | $this->denominator[] = $atomicUnit; |
| 128 | } |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | sort( $this->numerator ); |
| 133 | sort( $this->denominator ); |
| 134 | } |
| 135 | |
| 136 | } |