1: <?php
  2: /**
  3:  * This file is part of the Autarky package.
  4:  *
  5:  * (c) Andreas Lutro <anlutro@gmail.com>
  6:  *
  7:  * For the full copyright and license information, please view the LICENSE
  8:  * file that was distributed with this source code.
  9:  */
 10: 
 11: namespace Autarky\TwigTemplating;
 12: 
 13: /**
 14:  * Class representation of template context - the variables that are available
 15:  * inside a template.
 16:  */
 17: class TemplateContext
 18: {
 19:     /**
 20:      * @var array
 21:      */
 22:     protected $data = [];
 23: 
 24:     /**
 25:      * @param array $context
 26:      */
 27:     public function __construct(array $context = null)
 28:     {
 29:         if ($context) {
 30:             $this->data = $context;
 31:         }
 32:     }
 33: 
 34:     /**
 35:      * Add data to the context, replacing existing data.
 36:      *
 37:      * @param  array  $data
 38:      *
 39:      * @return void
 40:      */
 41:     public function replace(array $data)
 42:     {
 43:         $this->data = array_replace($this->data, $data);
 44:     }
 45: 
 46:     /**
 47:      * Add data to the context without replacing existing data.
 48:      *
 49:      * @param  array $data
 50:      *
 51:      * @return void
 52:      */
 53:     public function add(array $data)
 54:     {
 55:         $this->data += $data;
 56:     }
 57: 
 58:     public function &__get($key)
 59:     {
 60:         if (!array_key_exists($key, $this->data)) {
 61:             throw new \OutOfBoundsException("Undefined index for context: $key");
 62:         }
 63: 
 64:         return $this->data[$key];
 65:     }
 66: 
 67:     public function __isset($key)
 68:     {
 69:         return array_key_exists($key, $this->data);
 70:     }
 71: 
 72:     public function __set($key, $value)
 73:     {
 74:         $this->data[$key] = $value;
 75:     }
 76: 
 77:     public function __unset($key)
 78:     {
 79:         unset($this->data[$key]);
 80:     }
 81: 
 82:     public function &offsetGet($key)
 83:     {
 84:         if (!array_key_exists($key, $this->data)) {
 85:             throw new \OutOfBoundsException("Undefined index for context: $key");
 86:         }
 87: 
 88:         return $this->data[$key];
 89:     }
 90: 
 91:     public function offsetExists($key)
 92:     {
 93:         return array_key_exists($key, $this->data);
 94:     }
 95: 
 96:     public function offsetSet($key, $value)
 97:     {
 98:         $this->data[$key] = $value;
 99:     }
100: 
101:     public function offsetUnset($key)
102:     {
103:         unset($this->data[$key]);
104:     }
105: 
106:     public function toArray()
107:     {
108:         return $this->data;
109:     }
110: }
111: