/
BaseTag.php
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/
BaseTag.php
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<?php
/**
* This file is part of the Cloudinary PHP package.
*
* (c) Cloudinary
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Cloudinary\Tag;
use Cloudinary\ArrayUtils;
use Cloudinary\Asset\AssetQualifiers;
use Cloudinary\Configuration\Configuration;
use Cloudinary\Configuration\TagConfigTrait;
use Cloudinary\Transformation\QualifiersAction;
use Cloudinary\Utils;
use UnexpectedValueException;
/**
* Class BaseTag
*
* @api
*/
abstract class BaseTag
{
use TagConfigTrait;
const SINGLE_QUOTES = 'single_quotes';
const DOUBLE_QUOTES = 'double_quotes';
/**
* @var string NAME Mandatory. The name of the tag.
*/
const NAME = null;
/**
* @var bool IS_VOID Indicates whether the tag is a void (self-closed, without body) tag.
*/
const IS_VOID = false;
/**
* @var array $classes An array of tag (unique) classes. Keys are used for uniqueness.
*/
protected $classes = [];
/**
* @var array $attributes An array of tag attributes.
*/
protected $attributes = [];
/**
* @var Configuration $config The Configuration instance.
*/
public $config;
/**
* @var array $content The items of the tag content(body).
*/
protected $content = [];
/**
* BaseTag constructor.
*
* @param Configuration|string|array|null $configuration The Configuration source.
*/
public function __construct($configuration = null)
{
if (static::NAME === null) {
throw new UnexpectedValueException('Tag name cannot be empty!');
}
if ($configuration === null) {
$configuration = Configuration::instance(); // get global instance
}
$this->configuration($configuration);
}
/**
* Sets the configuration.
*
* @param Configuration|string|array|null $configuration The Configuration source.
*
* @return Configuration
*/
public function configuration($configuration)
{
$tempConfiguration = new Configuration($configuration); // TODO: improve performance here
$this->config = $tempConfiguration;
return $tempConfiguration;
}
/**
* Imports (merges) the configuration.
*
* @param Configuration|string|array|null $configuration The Configuration source.
*
* @return static
*/
public function importConfiguration($configuration)
{
$this->config->importConfig($configuration);
return $this;
}
/**
* Adds a tag class.
*
* @param string|array $class The class to add.
*
* @return static
*/
public function addClass($class)
{
if (empty($class)) {
return $this;
}
if (is_string($class)) {
$class = explode(' ', $class);
}
$this->classes = array_merge($this->classes, array_flip($class));
return $this;
}
/**
* Resets tag classes and sets the specified one.
*
* @param string|array $class The class to set.
*
* @return static
*/
public function setClass($class)
{
$this->classes = [];
return $this->addClass($class);
}
/**
* Sets tag attribute.
*
* @param string $key The attribute name.
* @param mixed $value The attribute value.
*
* @return static
*/
public function setAttribute($key, $value = null)
{
$this->attributes[$key] = $value;
return $this;
}
/**
* Sets (multiple) tag attributes.
*
* @param array $attributes The attributes to set.
*
* @return static
*/
public function setAttributes(array $attributes)
{
$this->attributes = ArrayUtils::convertToAssoc($attributes);
return $this;
}
/**
* Deletes tag attribute.
*
* @param string $key The name of the attribute to delete.
*
* @return static
*/
public function deleteAttribute($key)
{
unset($this->attributes[$key]);
return $this;
}
/**
* Adds tag content.
*
* @param mixed $content The content value.
*
* @param mixed $key Optional. Used for uniqueness.
*
* @return $this
*/
public function addContent($content, $key = null)
{
if ($key === null) {
$this->content [] = $content;
} else {
$this->content[$key] = $content;
}
return $this;
}
/**
* Sets the content of the tag to the specified one.
*
* @param mixed $content The content of the tag.
*
* @return static
*/
public function setContent($content)
{
$this->content = [];
return $this->addContent($content);
}
/**
* Serializes the tag to string.
*
* @return string
*/
public function serialize()
{
$closingChar = static::IS_VOID && $this->config->tag->voidClosingSlash ? '/>' : '>';
$tag = ArrayUtils::implodeFiltered(' ', ['<' . static::NAME, $this->serializeAttributes()]) . $closingChar;
if (! static::IS_VOID) {
$d = $this->config->tag->contentDelimiter;
$content = $this->serializeContent();
$tag .= $content ? "{$d}{$content}{$d}" : '';
$tag .= '</' . static::NAME . '>';
}
return $tag;
}
/**
* Serializes the tag content.
*
* @param array $additionalContent The additional content.
* @param bool $prependAdditionalContent Whether to prepend additional content (instead of append).
*
* @return string
*/
public function serializeContent($additionalContent = [], $prependAdditionalContent = false)
{
$content = $prependAdditionalContent ? ArrayUtils::mergeNonEmpty(
$additionalContent,
$this->content
) : ArrayUtils::mergeNonEmpty($this->content, $additionalContent);
return implode(
$this->config->tag->contentDelimiter,
$content
);
}
/**
* Serializes the tag attributes.
*
* @param array $attributes Optional. Additional attributes to add without affecting the tag state.
*
* @return string
*/
public function serializeAttributes($attributes = [])
{
$classAttr = ! empty($this->classes) ? ['class' => implode(' ', array_keys($this->classes))] : [];
$allAttributes = array_merge($classAttr, $this->attributes, $attributes);
if ($this->config->tag->sortAttributes) {
ksort($allAttributes);
}
if ($this->config->tag->prependSrcAttribute && array_key_exists('src', $allAttributes)) {
ArrayUtils::prependAssoc($allAttributes, 'src', ArrayUtils::pop($allAttributes, 'src'));
}
$attrStrings = [];
foreach ($allAttributes as $name => $value) {
if (is_bool($value)) {
// if the value is set to true, we just set the name, otherwise omit the attribute.
if ($value === false) {
continue;
}
$value = null;
}
$attrStrings [] = $this->serializeAttribute($name, $value);
}
return implode(' ', $attrStrings);
}
/**
* Serializes a single tag attribute.
*
* @param string $name The name of the attribute
* @param mixed $value The value of the attribute
*
* @return string
*/
protected function serializeAttribute($name, $value)
{
if (empty($value)) {
return $name;
}
$value = Utils::normalizeToString($value);
if ($this->config->tag->quotesType === self::DOUBLE_QUOTES) {
$value = '"' . htmlspecialchars($value) . '"';
} else {
$value = "'" . htmlspecialchars($value, ENT_QUOTES) . "'";
}
return "{$name}={$value}";
}
/**
* Removes asset and transformation keys from the list of parameters, leaving only attributes.
*
* @param array $params The input parameters.
*
* @return array
*/
protected static function collectAttributesFromParams($params)
{
$attributes = ArrayUtils::pop($params, 'attributes', []);
$nonAttributes = array_merge(
AssetQualifiers::ASSET_KEYS,
array_keys(QualifiersAction::QUALIFIERS),
['responsive_breakpoints']
);
$paramsAttributes = ArrayUtils::blacklist($params, $nonAttributes);
// Explicitly provided attributes override options
return array_merge($paramsAttributes, $attributes);
}
/**
* Returns Configuration for fromParams function.
*
* @return Configuration
*/
protected static function fromParamsDefaultConfig()
{
$configuration = (new Configuration(Configuration::instance()));
# set v1 defaults
$configuration->tag->quotesType = self::SINGLE_QUOTES;
$configuration->tag->sortAttributes = true;
$configuration->tag->voidClosingSlash = true;
$configuration->tag->contentDelimiter = '';
return $configuration;
}
/**
* Sets the Tag configuration key with the specified value.
*
* @param string $configKey The configuration key.
* @param mixed $configValue THe configuration value.
*
* @return $this
*
* @internal
*/
public function setTagConfig($configKey, $configValue)
{
$this->config->tag->setTagConfig($configKey, $configValue);
return $this;
}
/**
* Serializes the tag to string.
*
* @return string
*/
public function toTag()
{
return $this->serialize();
}
/**
* Serializes the tag to string.
*
* @return string
*/
public function __toString()
{
return $this->toTag();
}
}