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<?php |
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namespace kalanis\kw_templates\HtmlElement; |
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/** |
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* Trait TAttributes |
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* @package kalanis\kw_templates\Template |
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* Trait for work with attributes |
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* It's not necessary to have attributes directly in HtmlElement |
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* @author Adam Dornak original |
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* @author Petr Plsek refactored |
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*/ |
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trait TAttributes |
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{ |
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/** @var array<string, string> */ |
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protected array $attributes = []; |
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/** |
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* Returns serialized attributes |
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* Use $attributes param if is set |
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* @param string|array<string, string|int|array<string>>|null $attributes |
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* @return string |
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*/ |
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protected function renderAttributes($attributes = null): string |
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{ |
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$attributes = is_null($attributes) ? $this->attributes : $this->attributesParse($attributes); |
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$return = ''; |
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foreach ($attributes as $name => $value) { |
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$return .= ' ' . $name . '="' . $value . '"'; |
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} |
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return $return; |
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} |
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/** |
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* Add array of attributes into current object attributes |
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* @param string|array<string, string|int|array<string>>|null $attributes |
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*/ |
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public function addAttributes($attributes): void |
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{ |
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$this->attributes = array_merge($this->attributes, $this->attributesParse($attributes)); |
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} |
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/** |
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* Change attributes in variable to 2-dimensional array |
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* Expects array, discard rest |
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* @param string|array<string, string|int|array<string>>|null $attributes |
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* @return array<string, string> |
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*/ |
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public function attributesParse($attributes): array |
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{ |
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$attributes = is_array($attributes) ? $attributes : $this->attributesParseString(strval($attributes)); |
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return $this->attributesParseArray($attributes); |
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} |
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/** |
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* Change attributes in variable to 2-dimensional array |
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* Expects array, discard rest |
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* @param array<string|int, string|int|array<string>> $attributes |
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* @return array<string, string> |
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*/ |
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public function attributesParseArray(array $attributes): array |
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{ |
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$array = []; |
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foreach ($attributes as $key => $val) { |
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if (is_string($key)) { |
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$key = strtolower($key); |
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if (is_string($val) || is_numeric($val)) { |
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$val = strtolower(strval($val)); |
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$array[$key] = $val; |
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} else if (is_array($val)) { |
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foreach ($val as &$_val) { |
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$_val = strtolower(strval($_val)); |
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} |
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$val = implode(';', $val); |
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$array[$key] = $val; |
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} |
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} |
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} |
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return $array; |
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} |
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/** |
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* Change attributes to 2-dimensional array |
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* Expects string like: width="100px" height='150px' style="color:red" |
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* Discard rest |
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* @param string $attributes |
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* @return array<string|int, string|int> |
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*/ |
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public function attributesParseString(string $attributes): array |
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{ |
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$array = []; |
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$string = trim($attributes); |
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if (preg_match_all('/([a-z]+)\=("|\')?(.+?)(?(2)\2)(\s|$)/', $string, $matches)) { |
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$limit = count($matches[1]); |
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for ($i = 0; $i < $limit; $i++) { |
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$array[$matches[1][$i]] = trim($matches[3][$i]); |
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} |
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} |
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return $array; |
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} |
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/** |
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* Set attributes, leave nothing from previous ones |
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* @param string|array<string, string|int|array<string>>|null $attributes |
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*/ |
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public function setAttributes($attributes): void |
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{ |
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$this->attributes = []; |
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$this->addAttributes($attributes); |
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} |
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/** |
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* Get all available attributes |
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* @return array<string, string> |
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*/ |
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public function getAttributes(): array |
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{ |
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return $this->attributes; |
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} |
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/** |
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* Get attribute value |
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* @param string $name |
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* @return string|null |
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*/ |
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public function getAttribute(string $name): ?string |
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{ |
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return isset($this->attributes[$name]) ? $this->attributes[$name] : null ; |
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} |
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/** |
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* Set attribute value |
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* @param string $name |
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* @param string $value |
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*/ |
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public function setAttribute(string $name, string $value): void |
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{ |
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$this->attributes[$name] = $value; |
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} |
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/** |
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* Remove attribute |
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* @param string $name |
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*/ |
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public function removeAttribute(string $name): void |
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{ |
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if (isset($this->attributes[$name])) { |
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unset($this->attributes[$name]); |
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} |
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} |
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} |
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alex-kalanis /
kw_templates
