1 | <?php |
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2 | /** @file |
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3 | * |
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4 | * A simple selector. |
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5 | * |
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6 | */ |
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7 | |||
8 | namespace QueryPath\CSS; |
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9 | |||
10 | /** |
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11 | * Models a simple selector. |
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12 | * |
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13 | * CSS Selectors are composed of one or more simple selectors, where |
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14 | * each simple selector may have any of the following components: |
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15 | * |
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16 | * - An element name (or wildcard *) |
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17 | * - An ID (#foo) |
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18 | * - One or more classes (.foo.bar) |
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19 | * - One or more attribute matchers ([foo=bar]) |
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20 | * - One or more pseudo-classes (:foo) |
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21 | * - One or more pseudo-elements (::first) |
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22 | * |
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23 | * For performance reasons, this object has been kept as sparse as |
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24 | * possible. |
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25 | * |
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26 | * @since QueryPath 3.x |
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27 | * @author M Butcher |
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28 | * |
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29 | */ |
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30 | class SimpleSelector |
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31 | { |
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32 | |||
33 | public const ADJACENT = 0x1; |
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34 | public const DIRECT_DESCENDANT = 0x2; |
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35 | public const ANOTHER_SELECTOR = 0x4; |
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36 | public const SIBLING = 0x8; |
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37 | public const ANY_DESCENDANT = 0x10; |
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38 | |||
39 | public $element; |
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40 | public $ns; |
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41 | public $id; |
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42 | public $classes = []; |
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43 | public $attributes = []; |
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44 | public $pseudoClasses = []; |
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45 | public $pseudoElements = []; |
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46 | public $combinator; |
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47 | |||
48 | /** |
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49 | * @param $code |
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50 | * @return string |
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51 | */ |
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52 | public static function attributeOperator($code): string |
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53 | { |
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54 | switch ($code) { |
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55 | case EventHandler::CONTAINS_WITH_SPACE: |
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56 | return '~='; |
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57 | case EventHandler::CONTAINS_WITH_HYPHEN: |
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58 | return '|='; |
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59 | case EventHandler::CONTAINS_IN_STRING: |
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60 | return '*='; |
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61 | case EventHandler::BEGINS_WITH: |
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62 | return '^='; |
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63 | case EventHandler::ENDS_WITH: |
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64 | return '$='; |
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65 | default: |
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66 | return '='; |
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67 | } |
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68 | } |
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69 | |||
70 | /** |
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71 | * @param $code |
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72 | * @return string |
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73 | */ |
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74 | public static function combinatorOperator($code): string |
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75 | { |
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76 | switch ($code) { |
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77 | case self::ADJACENT: |
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78 | return '+'; |
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79 | case self::DIRECT_DESCENDANT: |
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80 | return '>'; |
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81 | case self::SIBLING: |
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82 | return '~'; |
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83 | case self::ANOTHER_SELECTOR: |
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84 | return ', '; |
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85 | case self::ANY_DESCENDANT: |
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86 | return ' '; |
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87 | default: |
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88 | return ''; |
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89 | break; |
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90 | } |
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91 | } |
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92 | |||
93 | public function __construct() |
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94 | { |
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95 | } |
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96 | |||
97 | /** |
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98 | * @return bool |
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99 | */ |
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100 | public function notEmpty(): bool |
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101 | { |
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102 | return !empty($this->element) |
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103 | && !empty($this->id) |
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104 | && !empty($this->classes) |
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105 | && !empty($this->combinator) |
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106 | && !empty($this->attributes) |
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107 | && !empty($this->pseudoClasses) |
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108 | && !empty($this->pseudoElements); |
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109 | } |
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110 | |||
111 | public function __toString() |
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112 | { |
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113 | $buffer = []; |
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114 | try { |
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115 | |||
116 | if (!empty($this->ns)) { |
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117 | $buffer[] = $this->ns; |
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118 | $buffer[] = '|'; |
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119 | } |
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120 | if (!empty($this->element)) { |
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121 | $buffer[] = $this->element; |
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122 | } |
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123 | if (!empty($this->id)) { |
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124 | $buffer[] = '#' . $this->id; |
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125 | } |
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126 | if (!empty($this->attributes)) { |
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127 | foreach ($this->attributes as $attr) { |
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128 | $buffer[] = '['; |
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129 | if (!empty($attr['ns'])) { |
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130 | $buffer[] = $attr['ns'] . '|'; |
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131 | } |
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132 | $buffer[] = $attr['name']; |
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133 | if (!empty($attr['value'])) { |
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134 | $buffer[] = self::attributeOperator($attr['op']); |
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135 | $buffer[] = $attr['value']; |
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136 | } |
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137 | $buffer[] = ']'; |
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138 | } |
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139 | } |
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140 | if (!empty($this->pseudoClasses)) { |
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141 | foreach ($this->pseudoClasses as $ps) { |
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142 | $buffer[] = ':' . $ps['name']; |
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143 | if (isset($ps['value'])) { |
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144 | $buffer[] = '(' . $ps['value'] . ')'; |
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145 | } |
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146 | } |
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147 | } |
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148 | foreach ($this->pseudoElements as $pe) { |
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149 | $buffer[] = '::' . $pe; |
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150 | } |
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151 | |||
152 | if (!empty($this->combinator)) { |
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153 | $buffer[] = self::combinatorOperator($this->combinator); |
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154 | } |
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155 | |||
156 | } catch (\Exception $e) { |
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157 | return $e->getMessage(); |
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158 | } |
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159 | |||
160 | return implode('', $buffer); |
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161 | } |
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162 | |||
163 | } |
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164 |
The
break
statement is not necessary if it is preceded for example by areturn
statement:If you would like to keep this construct to be consistent with other
case
statements, you can safely mark this issue as a false-positive.