173 lines
2.9 KiB
PHP
173 lines
2.9 KiB
PHP
<?php
|
|
|
|
namespace Sabre\VObject;
|
|
|
|
/**
|
|
* VObject ElementList
|
|
*
|
|
* This class represents a list of elements. Lists are the result of queries,
|
|
* such as doing $vcalendar->vevent where there's multiple VEVENT objects.
|
|
*
|
|
* @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
|
|
* @author Evert Pot (http://www.rooftopsolutions.nl/)
|
|
* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
|
|
*/
|
|
class ElementList implements \Iterator, \Countable, \ArrayAccess {
|
|
|
|
/**
|
|
* Inner elements
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $elements = array();
|
|
|
|
/**
|
|
* Creates the element list.
|
|
*
|
|
* @param array $elements
|
|
*/
|
|
public function __construct(array $elements) {
|
|
|
|
$this->elements = $elements;
|
|
|
|
}
|
|
|
|
/* {{{ Iterator interface */
|
|
|
|
/**
|
|
* Current position
|
|
*
|
|
* @var int
|
|
*/
|
|
private $key = 0;
|
|
|
|
/**
|
|
* Returns current item in iteration
|
|
*
|
|
* @return Element
|
|
*/
|
|
public function current() {
|
|
|
|
return $this->elements[$this->key];
|
|
|
|
}
|
|
|
|
/**
|
|
* To the next item in the iterator
|
|
*
|
|
* @return void
|
|
*/
|
|
public function next() {
|
|
|
|
$this->key++;
|
|
|
|
}
|
|
|
|
/**
|
|
* Returns the current iterator key
|
|
*
|
|
* @return int
|
|
*/
|
|
public function key() {
|
|
|
|
return $this->key;
|
|
|
|
}
|
|
|
|
/**
|
|
* Returns true if the current position in the iterator is a valid one
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function valid() {
|
|
|
|
return isset($this->elements[$this->key]);
|
|
|
|
}
|
|
|
|
/**
|
|
* Rewinds the iterator
|
|
*
|
|
* @return void
|
|
*/
|
|
public function rewind() {
|
|
|
|
$this->key = 0;
|
|
|
|
}
|
|
|
|
/* }}} */
|
|
|
|
/* {{{ Countable interface */
|
|
|
|
/**
|
|
* Returns the number of elements
|
|
*
|
|
* @return int
|
|
*/
|
|
public function count() {
|
|
|
|
return count($this->elements);
|
|
|
|
}
|
|
|
|
/* }}} */
|
|
|
|
/* {{{ ArrayAccess Interface */
|
|
|
|
|
|
/**
|
|
* Checks if an item exists through ArrayAccess.
|
|
*
|
|
* @param int $offset
|
|
* @return bool
|
|
*/
|
|
public function offsetExists($offset) {
|
|
|
|
return isset($this->elements[$offset]);
|
|
|
|
}
|
|
|
|
/**
|
|
* Gets an item through ArrayAccess.
|
|
*
|
|
* @param int $offset
|
|
* @return mixed
|
|
*/
|
|
public function offsetGet($offset) {
|
|
|
|
return $this->elements[$offset];
|
|
|
|
}
|
|
|
|
/**
|
|
* Sets an item through ArrayAccess.
|
|
*
|
|
* @param int $offset
|
|
* @param mixed $value
|
|
* @return void
|
|
*/
|
|
public function offsetSet($offset,$value) {
|
|
|
|
throw new \LogicException('You can not add new objects to an ElementList');
|
|
|
|
}
|
|
|
|
/**
|
|
* Sets an item through ArrayAccess.
|
|
*
|
|
* This method just forwards the request to the inner iterator
|
|
*
|
|
* @param int $offset
|
|
* @return void
|
|
*/
|
|
public function offsetUnset($offset) {
|
|
|
|
throw new \LogicException('You can not remove objects from an ElementList');
|
|
|
|
}
|
|
|
|
/* }}} */
|
|
|
|
}
|