|
| 1 | +CssColor |
| 2 | +========= |
| 3 | + |
| 4 | +Validates that a value is a valid CSS color. The underlying value is |
| 5 | +casted to a string before being validated. |
| 6 | + |
| 7 | +========== =================================================================== |
| 8 | +Applies to :ref:`property or method <validation-property-target>` |
| 9 | +Options - `groups`_ |
| 10 | + - `message`_ |
| 11 | + - `formats`_ |
| 12 | + - `payload`_ |
| 13 | +Class :class:`Symfony\\Component\\Validator\\Constraints\\CssColor` |
| 14 | +Validator :class:`Symfony\\Component\\Validator\\Constraints\\CssColorValidator` |
| 15 | +========== =================================================================== |
| 16 | + |
| 17 | +Basic Usage |
| 18 | +----------- |
| 19 | + |
| 20 | +.. configuration-block:: |
| 21 | + |
| 22 | + .. code-block:: php-annotations |
| 23 | +
|
| 24 | + // src/Entity/Bulb.php |
| 25 | + namespace App\Entity; |
| 26 | +
|
| 27 | + use Symfony\Component\Validator\Constraints as Assert; |
| 28 | +
|
| 29 | + class Bulb |
| 30 | + { |
| 31 | + /** |
| 32 | + * @Assert\CssColor( |
| 33 | + * message = "The color '{{ value }}' is not a valid CSS color." |
| 34 | + * ) |
| 35 | + */ |
| 36 | + protected $currentColor; |
| 37 | + } |
| 38 | +
|
| 39 | + .. code-block:: yaml |
| 40 | +
|
| 41 | + # config/validator/validation.yaml |
| 42 | + App\Entity\Bulb: |
| 43 | + properties: |
| 44 | + currentColor: |
| 45 | + - CssColor: |
| 46 | + message: The color "{{ value }}" is not a valid CSS color. |
| 47 | +
|
| 48 | + .. code-block:: xml |
| 49 | +
|
| 50 | + <!-- config/validator/validation.xml --> |
| 51 | + <?xml version="1.0" encoding="UTF-8" ?> |
| 52 | + <constraint-mapping xmlns="http://symfony.com/schema/dic/constraint-mapping" |
| 53 | + xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" |
| 54 | + xsi:schemaLocation="http://symfony.com/schema/dic/constraint-mapping https://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd"> |
| 55 | +
|
| 56 | + <class name="App\Entity\Bulb"> |
| 57 | + <property name="currentColor"> |
| 58 | + <constraint name="CssColor"> |
| 59 | + <option name="message">The color "{{ value }}" is not a valid CSS color.</option> |
| 60 | + </constraint> |
| 61 | + </property> |
| 62 | + </class> |
| 63 | + </constraint-mapping> |
| 64 | +
|
| 65 | + .. code-block:: php |
| 66 | +
|
| 67 | + // src/Entity/Bulb.php |
| 68 | + namespace App\Entity; |
| 69 | +
|
| 70 | + use Symfony\Component\Validator\Constraints as Assert; |
| 71 | + use Symfony\Component\Validator\Mapping\ClassMetadata; |
| 72 | +
|
| 73 | + class Bulb |
| 74 | + { |
| 75 | + public static function loadValidatorMetadata(ClassMetadata $metadata) |
| 76 | + { |
| 77 | + $metadata->addPropertyConstraint('currentColor', new Assert\CssColor([ |
| 78 | + 'message' => 'The color "{{ value }}" is not a valid CSS color.', |
| 79 | + ])); |
| 80 | + } |
| 81 | + } |
| 82 | +
|
| 83 | +.. include:: /reference/constraints/_empty-values-are-valid.rst.inc |
| 84 | + |
| 85 | +Options |
| 86 | +------- |
| 87 | + |
| 88 | +.. include:: /reference/constraints/_groups-option.rst.inc |
| 89 | + |
| 90 | +message |
| 91 | +~~~~~~~ |
| 92 | + |
| 93 | +**type**: ``string`` **default**: ``This value is not a valid CSS color.`` |
| 94 | + |
| 95 | +This message is shown if the underlying data is not a valid CSS color. |
| 96 | + |
| 97 | +You can use the following parameters in this message: |
| 98 | + |
| 99 | +=============== ============================================================== |
| 100 | +Parameter Description |
| 101 | +=============== ============================================================== |
| 102 | +``{{ value }}`` The current (invalid) value |
| 103 | +=============== ============================================================== |
| 104 | + |
| 105 | +formats |
| 106 | +~~~~~~~ |
| 107 | + |
| 108 | +**type**: ``string`` | ``array`` |
| 109 | + |
| 110 | +This option is optional and defines the pattern the CSS color is validated against. |
| 111 | +Valid values are: |
| 112 | + |
| 113 | +* ``hex_long`` |
| 114 | +* ``hex_long_with_alpha`` |
| 115 | +* ``hex_short`` |
| 116 | +* ``hex_short_with_alpha`` |
| 117 | +* ``basic_named_colors`` |
| 118 | +* ``extended_named_colors`` |
| 119 | +* ``system_colors`` |
| 120 | +* ``keywords`` |
| 121 | +* ``rgb`` |
| 122 | +* ``rgba`` |
| 123 | +* ``hsl`` |
| 124 | +* ``hsla`` |
| 125 | + |
| 126 | +hex_long |
| 127 | +........ |
| 128 | + |
| 129 | +A regular expression. Allows all values which represent a CSS color |
| 130 | +of 6 characters (in addition of the leading ``#``) and contained in ranges: 0 to 9 and A to F (case insensitive). |
| 131 | + |
| 132 | +hex_long_with_alpha |
| 133 | +................... |
| 134 | + |
| 135 | +A regular expression. Allows all values which represent a CSS color with alpha part |
| 136 | +of 8 characters (in addition of the leading ``#``) and contained in ranges: 0 to 9 and A to F (case insensitive). |
| 137 | + |
| 138 | +hex_short |
| 139 | +......... |
| 140 | + |
| 141 | +A simple regular expression. Allows all values which represent a CSS color |
| 142 | +of strictly 3 characters (in addition of the leading ``#``) and contained in ranges: 0 to 9 and A to F (case insensitive). |
| 143 | + |
| 144 | +hex_short_with_alpha |
| 145 | +.................... |
| 146 | + |
| 147 | +A simple regular expression. Allows all values which represent a CSS color with alpha part |
| 148 | +of strictly 4 characters (in addition of the leading ``#``) and contained in ranges: 0 to 9 and A to F (case insensitive). |
| 149 | + |
| 150 | +basic_named_colors |
| 151 | +.................. |
| 152 | + |
| 153 | +Accordingly to the `W3C list of basic named colors`_, it allows to use colors by their names. |
| 154 | + |
| 155 | +extended_named_colors |
| 156 | +.................. |
| 157 | + |
| 158 | +Accordingly to the `W3C list of extended named colors`_, it allows to use colors by their names. |
| 159 | + |
| 160 | +system_colors |
| 161 | +............. |
| 162 | + |
| 163 | +Accordingly to the `CSS WG list of system colors`_, it allows to use colors by their names. |
| 164 | + |
| 165 | +keywords |
| 166 | +........ |
| 167 | + |
| 168 | +Accordingly to the `CSS WG list of keywords`_, it allows to use colors by their names. |
| 169 | + |
| 170 | +rgb |
| 171 | +........ |
| 172 | + |
| 173 | +A simple regular expression. Allows all values which represent a CSS color following th RGB notation, with or without space between values. |
| 174 | + |
| 175 | +rgba |
| 176 | +........ |
| 177 | + |
| 178 | +A simple regular expression. Allows all values which represent a CSS color with alpha part following th RGB notation, with or without space between values. |
| 179 | + |
| 180 | +hsl |
| 181 | +........ |
| 182 | + |
| 183 | +A simple regular expression. Allows all values which represent a CSS color following th HSL notation, with or without space between values. |
| 184 | + |
| 185 | +hsla |
| 186 | +........ |
| 187 | + |
| 188 | +A simple regular expression. Allows all values which represent a CSS color with alpha part following th HSLA notation, with or without space between values. |
| 189 | + |
| 190 | + |
| 191 | +.. include:: /reference/constraints/_payload-option.rst.inc |
| 192 | + |
| 193 | +.. _`W3C list of basic named colors`: https://www.w3.org/wiki/CSS/Properties/color/keywords#Basic_Colors |
| 194 | +.. _`W3C list of extended named colors`: https://www.w3.org/wiki/CSS/Properties/color/keywords#Extended_colors |
| 195 | +.. _`CSS WG list of system colors`: https://drafts.csswg.org/css-color/#css-system-colors |
| 196 | +.. _`CSS WG list of keywords`: https://drafts.csswg.org/css-color/#transparent-color |
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