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<?php
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c), Cake Software Foundation, Inc. (https://cakefoundation.org)
* @link https://cakephp.org CakePHP(tm) Project
* @since 3.0.0
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\View;
use Cake\Event\EventDispatcherInterface;
/**
* Provides the set() method for collecting template context.
*
* Once collected context data can be passed to another object.
* This is done in Controller, TemplateTask and View for example.
*
* @property array $_validViewOptions
*/
trait ViewVarsTrait
{
/**
* The name of default View class.
*
* @var string
* @deprecated 3.1.0 Use `$this->viewBuilder()->getClassName()`/`$this->viewBuilder()->setClassName()` instead.
*/
public $viewClass;
/**
* Variables for the view
*
* @var array
*/
public $viewVars = [];
/**
* The view builder instance being used.
*
* @var \Cake\View\ViewBuilder
*/
protected $_viewBuilder;
/**
* Get the view builder being used.
*
* @return \Cake\View\ViewBuilder
*/
public function viewBuilder()
{
if (!isset($this->_viewBuilder)) {
$this->_viewBuilder = new ViewBuilder();
}
return $this->_viewBuilder;
}
/**
* Constructs the view class instance based on the current configuration.
*
* @param string|null $viewClass Optional namespaced class name of the View class to instantiate.
* @return \Cake\View\View
* @throws \Cake\View\Exception\MissingViewException If view class was not found.
*/
public function createView($viewClass = null)
{
$builder = $this->viewBuilder();
if ($viewClass === null && $builder->getClassName() === null) {
$builder->setClassName($this->viewClass);
}
if ($viewClass) {
$builder->setClassName($viewClass);
}
$validViewOptions = $this->viewOptions();
$viewOptions = [];
foreach ($validViewOptions as $option) {
if (property_exists($this, $option)) {
$viewOptions[$option] = $this->{$option};
}
}
$deprecatedOptions = [
'layout' => 'layout',
'view' => 'template',
'theme' => 'theme',
'autoLayout' => 'autoLayout',
'viewPath' => 'templatePath',
'layoutPath' => 'layoutPath',
];
foreach ($deprecatedOptions as $old => $new) {
if (property_exists($this, $old)) {
$builder->{$new}($this->{$old});
trigger_error(sprintf(
'Property $%s is deprecated. Use $this->viewBuilder()->%s() instead in beforeRender().',
$old,
$new
), E_USER_DEPRECATED);
}
}
foreach (['name', 'helpers', 'plugin'] as $prop) {
if (isset($this->{$prop})) {
$builder->{$prop}($this->{$prop});
}
}
$builder->setOptions($viewOptions);
return $builder->build(
$this->viewVars,
isset($this->request) ? $this->request : null,
isset($this->response) ? $this->response : null,
$this instanceof EventDispatcherInterface ? $this->getEventManager() : null
);
}
/**
* Saves a variable or an associative array of variables for use inside a template.
*
* @param string|array $name A string or an array of data.
* @param mixed $value Value in case $name is a string (which then works as the key).
* Unused if $name is an associative array, otherwise serves as the values to $name's keys.
* @return $this
*/
public function set($name, $value = null)
{
if (is_array($name)) {
if (is_array($value)) {
$data = array_combine($name, $value);
} else {
$data = $name;
}
} else {
$data = [$name => $value];
}
$this->viewVars = $data + $this->viewVars;
return $this;
}
/**
* Get/Set valid view options in the object's _validViewOptions property. The property is
* created as an empty array if it is not set. If called without any parameters it will
* return the current list of valid view options. See `createView()`.
*
* @param string|array|null $options string or array of string to be appended to _validViewOptions.
* @param bool $merge Whether to merge with or override existing valid View options.
* Defaults to `true`.
* @return array The updated view options as an array.
*/
public function viewOptions($options = null, $merge = true)
{
if (!isset($this->_validViewOptions)) {
$this->_validViewOptions = [];
}
if ($options === null) {
return $this->_validViewOptions;
}
if (!$merge) {
return $this->_validViewOptions = (array)$options;
}
return $this->_validViewOptions = array_merge($this->_validViewOptions, (array)$options);
}
}