forked from friendica/friendica-addons
349 lines
8.9 KiB
PHP
349 lines
8.9 KiB
PHP
<?php
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/**
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* VObject Property
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*
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* A property in VObject is usually in the form PARAMNAME:paramValue.
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* An example is : SUMMARY:Weekly meeting
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*
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* Properties can also have parameters:
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* SUMMARY;LANG=en:Weekly meeting.
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*
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* Parameters can be accessed using the ArrayAccess interface.
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*
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* @package Sabre
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* @subpackage VObject
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* @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
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* @author Evert Pot (http://www.rooftopsolutions.nl/)
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* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
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*/
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class Sabre_VObject_Property extends Sabre_VObject_Element {
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/**
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* Propertyname
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*
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* @var string
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*/
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public $name;
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/**
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* Group name
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*
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* This may be something like 'HOME' for vcards.
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*
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* @var string
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*/
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public $group;
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/**
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* Property parameters
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*
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* @var array
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*/
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public $parameters = array();
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/**
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* Property value
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*
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* @var string
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*/
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public $value;
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/**
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* If properties are added to this map, they will be automatically mapped
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* to their respective classes, if parsed by the reader or constructed with
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* the 'create' method.
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*
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* @var array
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*/
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static public $classMap = array(
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'COMPLETED' => 'Sabre_VObject_Property_DateTime',
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'CREATED' => 'Sabre_VObject_Property_DateTime',
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'DTEND' => 'Sabre_VObject_Property_DateTime',
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'DTSTAMP' => 'Sabre_VObject_Property_DateTime',
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'DTSTART' => 'Sabre_VObject_Property_DateTime',
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'DUE' => 'Sabre_VObject_Property_DateTime',
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'EXDATE' => 'Sabre_VObject_Property_MultiDateTime',
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'LAST-MODIFIED' => 'Sabre_VObject_Property_DateTime',
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'RECURRENCE-ID' => 'Sabre_VObject_Property_DateTime',
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'TRIGGER' => 'Sabre_VObject_Property_DateTime',
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);
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/**
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* Creates the new property by name, but in addition will also see if
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* there's a class mapped to the property name.
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*
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* @param string $name
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* @param string $value
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* @return Sabre_VObject_Property
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*/
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static public function create($name, $value = null) {
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$name = strtoupper($name);
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$shortName = $name;
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$group = null;
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if (strpos($shortName,'.')!==false) {
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list($group, $shortName) = explode('.', $shortName);
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}
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if (isset(self::$classMap[$shortName])) {
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return new self::$classMap[$shortName]($name, $value);
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} else {
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return new self($name, $value);
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}
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}
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/**
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* Creates a new property object
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*
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* By default this object will iterate over its own children, but this can
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* be overridden with the iterator argument
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*
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* @param string $name
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* @param string $value
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* @param Sabre_VObject_ElementList $iterator
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*/
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public function __construct($name, $value = null, $iterator = null) {
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$name = strtoupper($name);
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$group = null;
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if (strpos($name,'.')!==false) {
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list($group, $name) = explode('.', $name);
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}
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$this->name = $name;
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$this->group = $group;
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if (!is_null($iterator)) $this->iterator = $iterator;
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$this->setValue($value);
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}
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/**
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* Updates the internal value
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*
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* @param string $value
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* @return void
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*/
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public function setValue($value) {
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$this->value = $value;
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}
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/**
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* Turns the object back into a serialized blob.
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*
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* @return string
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*/
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public function serialize() {
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$str = $this->name;
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if ($this->group) $str = $this->group . '.' . $this->name;
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if (count($this->parameters)) {
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foreach($this->parameters as $param) {
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$str.=';' . $param->serialize();
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}
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}
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$src = array(
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'\\',
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"\n",
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);
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$out = array(
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'\\\\',
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'\n',
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);
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$str.=':' . str_replace($src, $out, $this->value);
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$out = '';
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while(strlen($str)>0) {
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if (strlen($str)>75) {
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$out.= mb_strcut($str,0,75,'utf-8') . "\r\n";
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$str = ' ' . mb_strcut($str,75,strlen($str),'utf-8');
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} else {
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$out.=$str . "\r\n";
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$str='';
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break;
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}
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}
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return $out;
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}
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/**
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* Adds a new componenten or element
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*
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* You can call this method with the following syntaxes:
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*
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* add(Sabre_VObject_Parameter $element)
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* add(string $name, $value)
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*
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* The first version adds an Parameter
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* The second adds a property as a string.
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*
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* @param mixed $item
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* @param mixed $itemValue
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* @return void
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*/
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public function add($item, $itemValue = null) {
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if ($item instanceof Sabre_VObject_Parameter) {
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if (!is_null($itemValue)) {
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throw new InvalidArgumentException('The second argument must not be specified, when passing a VObject');
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}
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$item->parent = $this;
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$this->parameters[] = $item;
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} elseif(is_string($item)) {
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if (!is_scalar($itemValue) && !is_null($itemValue)) {
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throw new InvalidArgumentException('The second argument must be scalar');
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}
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$parameter = new Sabre_VObject_Parameter($item,$itemValue);
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$parameter->parent = $this;
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$this->parameters[] = $parameter;
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} else {
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throw new InvalidArgumentException('The first argument must either be a Sabre_VObject_Element or a string');
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}
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}
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/* ArrayAccess interface {{{ */
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/**
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* Checks if an array element exists
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*
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* @param mixed $name
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* @return bool
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*/
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public function offsetExists($name) {
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if (is_int($name)) return parent::offsetExists($name);
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$name = strtoupper($name);
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foreach($this->parameters as $parameter) {
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if ($parameter->name == $name) return true;
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}
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return false;
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}
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/**
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* Returns a parameter, or parameter list.
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*
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* @param string $name
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* @return Sabre_VObject_Element
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*/
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public function offsetGet($name) {
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if (is_int($name)) return parent::offsetGet($name);
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$name = strtoupper($name);
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$result = array();
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foreach($this->parameters as $parameter) {
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if ($parameter->name == $name)
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$result[] = $parameter;
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}
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if (count($result)===0) {
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return null;
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} elseif (count($result)===1) {
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return $result[0];
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} else {
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$result[0]->setIterator(new Sabre_VObject_ElementList($result));
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return $result[0];
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}
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}
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/**
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* Creates a new parameter
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*
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* @param string $name
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* @param mixed $value
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* @return void
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*/
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public function offsetSet($name, $value) {
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if (is_int($name)) parent::offsetSet($name, $value);
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if (is_scalar($value)) {
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if (!is_string($name))
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throw new InvalidArgumentException('A parameter name must be specified. This means you cannot use the $array[]="string" to add parameters.');
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$this->offsetUnset($name);
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$parameter = new Sabre_VObject_Parameter($name, $value);
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$parameter->parent = $this;
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$this->parameters[] = $parameter;
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} elseif ($value instanceof Sabre_VObject_Parameter) {
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if (!is_null($name))
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throw new InvalidArgumentException('Don\'t specify a parameter name if you\'re passing a Sabre_VObject_Parameter. Add using $array[]=$parameterObject.');
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$value->parent = $this;
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$this->parameters[] = $value;
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} else {
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throw new InvalidArgumentException('You can only add parameters to the property object');
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}
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}
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/**
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* Removes one or more parameters with the specified name
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*
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* @param string $name
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* @return void
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*/
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public function offsetUnset($name) {
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if (is_int($name)) parent::offsetUnset($name);
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$name = strtoupper($name);
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foreach($this->parameters as $key=>$parameter) {
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if ($parameter->name == $name) {
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$parameter->parent = null;
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unset($this->parameters[$key]);
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}
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}
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}
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/* }}} */
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/**
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* Called when this object is being cast to a string
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*
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* @return string
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*/
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public function __toString() {
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return (string)$this->value;
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}
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/**
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* This method is automatically called when the object is cloned.
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* Specifically, this will ensure all child elements are also cloned.
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*
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* @return void
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*/
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public function __clone() {
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foreach($this->parameters as $key=>$child) {
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$this->parameters[$key] = clone $child;
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$this->parameters[$key]->parent = $this;
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}
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}
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}
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