377 lines
9.0 KiB
PHP
377 lines
9.0 KiB
PHP
<?php
|
|
/**
|
|
* Zend Framework
|
|
*
|
|
* LICENSE
|
|
*
|
|
* This source file is subject to the new BSD license that is bundled
|
|
* with this package in the file LICENSE.txt.
|
|
* It is also available through the world-wide-web at this URL:
|
|
* http://framework.zend.com/license/new-bsd
|
|
* If you did not receive a copy of the license and are unable to
|
|
* obtain it through the world-wide-web, please send an email
|
|
* to license@zend.com so we can send you a copy immediately.
|
|
*
|
|
* @category Zend
|
|
* @package Zend_View
|
|
* @subpackage Helper
|
|
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @version $Id: Abstract.php 18951 2009-11-12 16:26:19Z alexander $
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
*/
|
|
|
|
/**
|
|
* Abstract class representing container for placeholder values
|
|
*
|
|
* @package Zend_View
|
|
* @subpackage Helper
|
|
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
*/
|
|
abstract class Zend_View_Helper_Placeholder_Container_Abstract extends ArrayObject
|
|
{
|
|
/**
|
|
* Whether or not to override all contents of placeholder
|
|
* @const string
|
|
*/
|
|
const SET = 'SET';
|
|
|
|
/**
|
|
* Whether or not to append contents to placeholder
|
|
* @const string
|
|
*/
|
|
const APPEND = 'APPEND';
|
|
|
|
/**
|
|
* Whether or not to prepend contents to placeholder
|
|
* @const string
|
|
*/
|
|
const PREPEND = 'PREPEND';
|
|
|
|
/**
|
|
* What text to prefix the placeholder with when rendering
|
|
* @var string
|
|
*/
|
|
protected $_prefix = '';
|
|
|
|
/**
|
|
* What text to append the placeholder with when rendering
|
|
* @var string
|
|
*/
|
|
protected $_postfix = '';
|
|
|
|
/**
|
|
* What string to use between individual items in the placeholder when rendering
|
|
* @var string
|
|
*/
|
|
protected $_separator = '';
|
|
|
|
/**
|
|
* What string to use as the indentation of output, this will typically be spaces. Eg: ' '
|
|
* @var string
|
|
*/
|
|
protected $_indent = '';
|
|
|
|
/**
|
|
* Whether or not we're already capturing for this given container
|
|
* @var bool
|
|
*/
|
|
protected $_captureLock = false;
|
|
|
|
/**
|
|
* What type of capture (overwrite (set), append, prepend) to use
|
|
* @var string
|
|
*/
|
|
protected $_captureType;
|
|
|
|
/**
|
|
* Key to which to capture content
|
|
* @var string
|
|
*/
|
|
protected $_captureKey;
|
|
|
|
/**
|
|
* Constructor - This is needed so that we can attach a class member as the ArrayObject container
|
|
*
|
|
* @return void
|
|
*/
|
|
public function __construct()
|
|
{
|
|
parent::__construct(array(), parent::ARRAY_AS_PROPS);
|
|
}
|
|
|
|
/**
|
|
* Set a single value
|
|
*
|
|
* @param mixed $value
|
|
* @return void
|
|
*/
|
|
public function set($value)
|
|
{
|
|
$this->exchangeArray(array($value));
|
|
}
|
|
|
|
/**
|
|
* Prepend a value to the top of the container
|
|
*
|
|
* @param mixed $value
|
|
* @return void
|
|
*/
|
|
public function prepend($value)
|
|
{
|
|
$values = $this->getArrayCopy();
|
|
array_unshift($values, $value);
|
|
$this->exchangeArray($values);
|
|
}
|
|
|
|
/**
|
|
* Retrieve container value
|
|
*
|
|
* If single element registered, returns that element; otherwise,
|
|
* serializes to array.
|
|
*
|
|
* @return mixed
|
|
*/
|
|
public function getValue()
|
|
{
|
|
if (1 == count($this)) {
|
|
$keys = $this->getKeys();
|
|
$key = array_shift($keys);
|
|
return $this[$key];
|
|
}
|
|
|
|
return $this->getArrayCopy();
|
|
}
|
|
|
|
/**
|
|
* Set prefix for __toString() serialization
|
|
*
|
|
* @param string $prefix
|
|
* @return Zend_View_Helper_Placeholder_Container
|
|
*/
|
|
public function setPrefix($prefix)
|
|
{
|
|
$this->_prefix = (string) $prefix;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Retrieve prefix
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getPrefix()
|
|
{
|
|
return $this->_prefix;
|
|
}
|
|
|
|
/**
|
|
* Set postfix for __toString() serialization
|
|
*
|
|
* @param string $postfix
|
|
* @return Zend_View_Helper_Placeholder_Container
|
|
*/
|
|
public function setPostfix($postfix)
|
|
{
|
|
$this->_postfix = (string) $postfix;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Retrieve postfix
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getPostfix()
|
|
{
|
|
return $this->_postfix;
|
|
}
|
|
|
|
/**
|
|
* Set separator for __toString() serialization
|
|
*
|
|
* Used to implode elements in container
|
|
*
|
|
* @param string $separator
|
|
* @return Zend_View_Helper_Placeholder_Container
|
|
*/
|
|
public function setSeparator($separator)
|
|
{
|
|
$this->_separator = (string) $separator;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Retrieve separator
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getSeparator()
|
|
{
|
|
return $this->_separator;
|
|
}
|
|
|
|
/**
|
|
* Set the indentation string for __toString() serialization,
|
|
* optionally, if a number is passed, it will be the number of spaces
|
|
*
|
|
* @param string|int $indent
|
|
* @return Zend_View_Helper_Placeholder_Container_Abstract
|
|
*/
|
|
public function setIndent($indent)
|
|
{
|
|
$this->_indent = $this->getWhitespace($indent);
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Retrieve indentation
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getIndent()
|
|
{
|
|
return $this->_indent;
|
|
}
|
|
|
|
/**
|
|
* Retrieve whitespace representation of $indent
|
|
*
|
|
* @param int|string $indent
|
|
* @return string
|
|
*/
|
|
public function getWhitespace($indent)
|
|
{
|
|
if (is_int($indent)) {
|
|
$indent = str_repeat(' ', $indent);
|
|
}
|
|
|
|
return (string) $indent;
|
|
}
|
|
|
|
/**
|
|
* Start capturing content to push into placeholder
|
|
*
|
|
* @param int $type How to capture content into placeholder; append, prepend, or set
|
|
* @return void
|
|
* @throws Zend_View_Helper_Placeholder_Exception if nested captures detected
|
|
*/
|
|
public function captureStart($type = Zend_View_Helper_Placeholder_Container_Abstract::APPEND, $key = null)
|
|
{
|
|
if ($this->_captureLock) {
|
|
require_once 'Zend/View/Helper/Placeholder/Container/Exception.php';
|
|
throw new Zend_View_Helper_Placeholder_Container_Exception('Cannot nest placeholder captures for the same placeholder');
|
|
}
|
|
|
|
$this->_captureLock = true;
|
|
$this->_captureType = $type;
|
|
if ((null !== $key) && is_scalar($key)) {
|
|
$this->_captureKey = (string) $key;
|
|
}
|
|
ob_start();
|
|
}
|
|
|
|
/**
|
|
* End content capture
|
|
*
|
|
* @return void
|
|
*/
|
|
public function captureEnd()
|
|
{
|
|
$data = ob_get_clean();
|
|
$key = null;
|
|
$this->_captureLock = false;
|
|
if (null !== $this->_captureKey) {
|
|
$key = $this->_captureKey;
|
|
}
|
|
switch ($this->_captureType) {
|
|
case self::SET:
|
|
if (null !== $key) {
|
|
$this[$key] = $data;
|
|
} else {
|
|
$this->exchangeArray(array($data));
|
|
}
|
|
break;
|
|
case self::PREPEND:
|
|
if (null !== $key) {
|
|
$array = array($key => $data);
|
|
$values = $this->getArrayCopy();
|
|
$final = $array + $values;
|
|
$this->exchangeArray($final);
|
|
} else {
|
|
$this->prepend($data);
|
|
}
|
|
break;
|
|
case self::APPEND:
|
|
default:
|
|
if (null !== $key) {
|
|
if (empty($this[$key])) {
|
|
$this[$key] = $data;
|
|
} else {
|
|
$this[$key] .= $data;
|
|
}
|
|
} else {
|
|
$this[$this->nextIndex()] = $data;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get keys
|
|
*
|
|
* @return array
|
|
*/
|
|
public function getKeys()
|
|
{
|
|
$array = $this->getArrayCopy();
|
|
return array_keys($array);
|
|
}
|
|
|
|
/**
|
|
* Next Index
|
|
*
|
|
* as defined by the PHP manual
|
|
* @return int
|
|
*/
|
|
public function nextIndex()
|
|
{
|
|
$keys = $this->getKeys();
|
|
if (0 == count($keys)) {
|
|
return 0;
|
|
}
|
|
|
|
return $nextIndex = max($keys) + 1;
|
|
}
|
|
|
|
/**
|
|
* Render the placeholder
|
|
*
|
|
* @return string
|
|
*/
|
|
public function toString($indent = null)
|
|
{
|
|
$indent = ($indent !== null)
|
|
? $this->getWhitespace($indent)
|
|
: $this->getIndent();
|
|
|
|
$items = $this->getArrayCopy();
|
|
$return = $indent
|
|
. $this->getPrefix()
|
|
. implode($this->getSeparator(), $items)
|
|
. $this->getPostfix();
|
|
$return = preg_replace("/(\r\n?|\n)/", '$1' . $indent, $return);
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Serialize object to string
|
|
*
|
|
* @return string
|
|
*/
|
|
public function __toString()
|
|
{
|
|
return $this->toString();
|
|
}
|
|
}
|