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<?php |
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namespace TYPO3Fluid\Fluid\Core\ViewHelper; |
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/* |
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* This file belongs to the package "TYPO3 Fluid". |
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* See LICENSE.txt that was shipped with this package. |
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*/ |
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use TYPO3Fluid\Fluid\View\ViewInterface; |
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/** |
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* A key/value store that can be used by ViewHelpers to communicate between each other. |
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* |
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* @api |
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*/ |
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class ViewHelperVariableContainer |
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{ |
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/** |
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* Two-dimensional object array storing the values. The first dimension is the fully qualified ViewHelper name, |
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* and the second dimension is the identifier for the data the ViewHelper wants to store. |
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* |
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* @var array |
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*/ |
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protected $objects = []; |
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/** |
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* @var ViewInterface |
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*/ |
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protected $view; |
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/** |
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* Add a variable to the Variable Container. Make sure that $viewHelperName is ALWAYS set |
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* to your fully qualified ViewHelper Class Name |
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* |
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* @param string $viewHelperName The ViewHelper Class name (Fully qualified, like "TYPO3Fluid\Fluid\ViewHelpers\ForViewHelper") |
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* @param string $key Key of the data |
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* @param mixed $value The value to store |
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* @return void |
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* @api |
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*/ |
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public function add($viewHelperName, $key, $value) |
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{ |
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$this->addOrUpdate($viewHelperName, $key, $value); |
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} |
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/** |
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* Adds, or overrides recursively, all current variables defined in associative |
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* array or Traversable (with string keys!). |
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* |
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* @param string $viewHelperName The ViewHelper Class name (Fully qualified, like "TYPO3Fluid\Fluid\ViewHelpers\ForViewHelper") |
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* @param array|\Traversable $variables An associative array of all variables to add |
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* @return void |
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* @api |
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*/ |
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public function addAll($viewHelperName, $variables) |
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{ |
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if (!is_array($variables) && !$variables instanceof \Traversable) { |
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throw new \InvalidArgumentException( |
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'Invalid argument type for $variables in ViewHelperVariableContainer->addAll(). Expects array/Traversable ' . |
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'but received ' . (is_object($variables) ? get_class($variables) : gettype($variables)), |
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1501425195 |
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); |
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} |
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$this->objects[$viewHelperName] = array_replace_recursive( |
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isset($this->objects[$viewHelperName]) ? $this->objects[$viewHelperName] : [], |
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$variables instanceof \Traversable ? iterator_to_array($variables) : $variables |
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); |
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} |
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/** |
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* Add a variable to the Variable Container. Make sure that $viewHelperName is ALWAYS set |
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* to your fully qualified ViewHelper Class Name. |
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* In case the value is already inside, it is silently overridden. |
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* |
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* @param string $viewHelperName The ViewHelper Class name (Fully qualified, like "TYPO3Fluid\Fluid\ViewHelpers\ForViewHelper") |
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* @param string $key Key of the data |
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* @param mixed $value The value to store |
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* @return void |
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*/ |
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public function addOrUpdate($viewHelperName, $key, $value) |
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{ |
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if (!isset($this->objects[$viewHelperName])) { |
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$this->objects[$viewHelperName] = []; |
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} |
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$this->objects[$viewHelperName][$key] = $value; |
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} |
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/** |
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* Gets a variable which is stored |
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* |
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* @param string $viewHelperName The ViewHelper Class name (Fully qualified, like "TYPO3Fluid\Fluid\ViewHelpers\ForViewHelper") |
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* @param string $key Key of the data |
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* @param mixed $default Default value to use if no value is found. |
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* @return mixed The object stored |
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* @api |
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*/ |
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public function get($viewHelperName, $key, $default = null) |
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{ |
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return $this->exists($viewHelperName, $key) ? $this->objects[$viewHelperName][$key] : $default; |
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} |
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/** |
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* Gets all variables stored for a particular ViewHelper |
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* |
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* @param string $viewHelperName The ViewHelper Class name (Fully qualified, like "TYPO3Fluid\Fluid\ViewHelpers\ForViewHelper") |
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* @param mixed $default |
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*/ |
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public function getAll($viewHelperName, $default = null) |
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{ |
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return array_key_exists($viewHelperName, $this->objects) ? $this->objects[$viewHelperName] : $default; |
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} |
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/** |
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* Determine whether there is a variable stored for the given key |
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* |
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* @param string $viewHelperName The ViewHelper Class name (Fully qualified, like "TYPO3Fluid\Fluid\ViewHelpers\ForViewHelper") |
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* @param string $key Key of the data |
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* @return boolean TRUE if a value for the given ViewHelperName / Key is stored, FALSE otherwise. |
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* @api |
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*/ |
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public function exists($viewHelperName, $key) |
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{ |
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return isset($this->objects[$viewHelperName]) && array_key_exists($key, $this->objects[$viewHelperName]); |
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} |
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/** |
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* Remove a value from the variable container |
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* |
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* @param string $viewHelperName The ViewHelper Class name (Fully qualified, like "TYPO3Fluid\Fluid\ViewHelpers\ForViewHelper") |
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* @param string $key Key of the data to remove |
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* @return void |
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* @api |
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*/ |
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public function remove($viewHelperName, $key) |
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{ |
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unset($this->objects[$viewHelperName][$key]); |
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} |
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/** |
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* Set the view to pass it to ViewHelpers. |
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* |
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* @param ViewInterface $view View to set |
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* @return void |
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*/ |
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public function setView(ViewInterface $view) |
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{ |
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$this->view = $view; |
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} |
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/** |
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* Get the view. |
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* |
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* !!! This is NOT a public API and might still change!!! |
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* |
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* @return ViewInterface The View |
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*/ |
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public function getView() |
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{ |
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return $this->view; |
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} |
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/** |
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* Clean up for serializing. |
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* |
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* @return array |
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*/ |
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public function __sleep() |
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{ |
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return ['objects']; |
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} |
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} |
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