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<?php |
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declare(strict_types=1); |
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namespace HexMakina\Marker; |
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/** |
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* Provides a convenient way to generate form input elements with minimal code, |
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* making it easier and faster to build forms in PHP. |
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*/ |
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class Form |
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{ |
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/** |
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* Used as a shortcut for creating form input elements with a single line of code |
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* |
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* When called on the Form class with a name that matches an HTML input element type (such as hidden, date, time, radio, datetime, etc.), |
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* it intercepts the call and dynamically creates an input element of that type with the provided attributes. |
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*/ |
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public static function __callStatic(string $input_type, array $arguments): string |
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{ |
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// arguments [name, value, [attributes]] |
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$i = 0; |
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$name = $arguments[$i++] ?? null; |
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$value = $arguments[$i++] ?? null; |
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$attributes = (array)($arguments[$i++] ?? []); |
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$attributes['type'] = $input_type; |
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$attributes['name'] ??= $name; |
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$attributes['value'] ??= $value; |
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if ($attributes['type'] == 'datetime') { |
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$attributes['type'] = 'datetime-local'; |
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} elseif ($attributes['type'] == 'password') { |
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$attributes['value'] = ''; |
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} |
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return self::input($name, $value, $attributes); |
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} |
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/** |
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* Generates an HTML input element with the provided attributes. |
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* |
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* @param string|null $name The name of the input element |
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* @param mixed|null $value The value of the input element |
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* @param array $attributes An array containing the attributes of the input element |
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* @return string The generated HTML code for the input element |
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*/ |
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public static function input(string $name = null, $value = null, array $attributes = []): string |
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{ |
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$attributes['name'] ??= $name; |
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$attributes['value'] ??= $value; |
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if ( |
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!isset($attributes['type']) |
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|| isset($attributes['disabled']) |
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|| in_array('disabled', $attributes, true) |
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) { |
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// why are disabled field textual ? |
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// radio or checkbox can be disabled too.. |
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$attributes['type'] = 'text'; |
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} |
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return self::labelledField('input', null, $attributes); |
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} |
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/** |
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* Generates an HTML textarea element with the provided attributes. |
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* |
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* @param string $name The name of the textarea element |
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* @param mixed|null $value The value of the textarea element |
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* @param array $attributes An array containing the attributes of the textarea element |
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* @return string The generated HTML code for the textarea element |
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*/ |
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public static function textarea(string $name, $value = null, array $attributes = []): string |
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{ |
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$attributes['name'] ??= $name; |
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return self::labelledField('textarea', $value ?? '', $attributes); |
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} |
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/** |
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* Generates an HTML select element with the provided options and attributes. |
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* |
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* @param string $name The name of the select element |
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* @param array $option_list An array containing the options of the select element |
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* @param mixed|null $selected The selected option of the select element |
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* @param array $attributes An array containing the attributes of the select element |
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* @return string The generated HTML code for the select element |
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*/ |
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public static function select(string $name, array $option_list, $selected = null, array $attributes = []): string |
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{ |
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$attributes['name'] ??= $name; |
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$options = self::options($option_list, $selected); |
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return self::labelledField('select', $options, $attributes); |
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} |
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/** |
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* Generates an HTML options string for the provided option list and selected value. |
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* |
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* @param array $list An array containing the options of the select element |
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* @param mixed|null $selected The selected option of the select element |
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* @return string The generated HTML options string |
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*/ |
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public static function options(array $list, $selected = null): string |
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{ |
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$options = ''; |
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foreach ($list as $value => $label) { |
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$option_attributes = ['value' => $value]; |
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if ($selected == $value) { |
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$option_attributes['selected'] = 'selected'; |
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} |
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$options .= new Element('option', "$label", $option_attributes); |
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} |
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return $options; |
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} |
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/** |
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* Generates an HTML legend element with the provided label and attributes. |
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* |
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* @param string $label The label of the legend element |
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* @param array $attributes An array containing the attributes of the legend element |
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* @return string The generated HTML code for the legend element |
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*/ |
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public static function legend(string $label, array $attributes = []): string |
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{ |
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return '' . (new Element('legend', $label, $attributes)); |
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} |
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/** |
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* Generates an HTML label element with the provided for attribute, label text, and attributes. |
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* |
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* @param string $for The ID of the input element associated with the label |
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* @param string $label The text of the label element |
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* @param array $attributes An array containing the attributes of the label element |
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* @return string The generated HTML code for the label element |
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*/ |
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public static function label(string $for, string $label, array $attributes = []): string |
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{ |
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$attributes['for'] = $for; |
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unset($attributes['label']); |
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return self::labelledField('label', $label, $attributes); |
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} |
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public static function button(string $label, array $attributes = []): string |
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{ |
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return '' . (new Element('button', $label, $attributes)); |
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} |
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/** |
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* Generates a submit button element for a form. |
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* |
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* @param string $id The ID of the button element. |
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* @param string $label The label for the button element. |
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* @param array $attributes An optional array of attributes for the button element. |
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* The 'type' attribute is set to 'submit' by default and the 'name' attribute is omitted. |
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* The 'id' and 'value' attributes are automatically set based on the provided arguments. |
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* If the 'tag' attribute is set to 'input', an input element will be generated instead of a button element. |
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* @return string The generated HTML for the button element. |
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*/ |
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public static function submit(string $id, string $label, array $attributes = []): string |
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{ |
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$ret = ''; |
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$attributes['type'] = 'submit'; |
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unset($attributes['name']); |
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$attributes['id'] ??= $id; |
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$attributes['value'] ??= $label; |
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if (isset($attributes['tag']) && $attributes['tag'] === 'input') { |
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unset($attributes['tag']); |
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$ret .= new Element('input', '', $attributes); |
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} else { |
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unset($attributes['tag']); |
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unset($attributes['value']); |
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$ret .= self::button($label, $attributes); |
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} |
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return $ret; |
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} |
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/** |
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* Generates a labelled HTML form field, combining a form field with a label element. |
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* |
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* @param string $tag The HTML tag of the form field element |
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* @param string|null $content The content of the form field element |
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* @param array $attributes Additional attributes to add to the form field element |
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* @return string The HTML for the labelled form field |
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*/ |
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private static function labelledField(string $tag, string $content = null, array $attributes = []): string |
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{ |
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$ret = ''; |
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$attributes['id'] ??= $attributes['name'] ?? ''; |
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$label_text = $attributes['label'] ?? ''; |
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unset($attributes['label']); |
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$input = new Element($tag, $content, $attributes); |
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if($label_text){ |
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if (!empty($attributes['label-wrap'])) |
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$ret = self::label(null, $label_text.$input); |
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else |
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$ret = self::label($attributes['id'], $label_text).$input; |
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} |
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else |
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$ret = $input; |
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return $ret; |
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} |
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} |
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HexMakina /
Marker
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