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<?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.
 *
 * @package    Zend_View
 * @subpackage Helper
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @version    $Id: Placeholder.php 7078 2007-12-11 14:29:33Z matthew $
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */

/** Zend_View_Helper_Placeholder_Container_Standalone */
require_once 'Zend/View/Helper/Placeholder/Container/Standalone.php';

/**
 * Zend_Layout_View_Helper_HeadMeta
 *
 * @see        http://www.w3.org/TR/xhtml1/dtds.html
 * @uses       Zend_View_Helper_Placeholder_Container_Standalone
 * @package    Zend_View
 * @subpackage Helper
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_View_Helper_HeadMeta extends Zend_View_Helper_Placeholder_Container_Standalone
{
    /**
     * Types of attributes
     * @var array
     */
    protected $_typeKeys     = array('name', 'http-equiv');
    protected $_requiredKeys = array('content');
    protected $_modifierKeys = array('lang', 'scheme');

/**
     * @var string registry key
     */
    protected $_regKey = 'Zend_View_Helper_HeadMeta';

/**
     * Constructor
     *
     * Set separator to PHP_EOL
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
        $this->setSeparator(PHP_EOL);
    }

/**
     * Retrieve object instance; optionally add meta tag
     *
     * @param  string $content
     * @param  string $keyValue
     * @param  string $keyType
     * @param  array $modifiers
     * @param  string $placement
     * @return Zend_View_Helper_HeadMeta
     */
    public function headMeta($content = null, $keyValue = null, $keyType = 'name', $modifiers = array(), $placement = Zend_View_Helper_Placeholder_Container_Abstract::APPEND)
    {
        if ((null !== $content) && (null !== $keyValue)) {
            $item   = $this->createData($keyType, $keyValue, $content, $modifiers);
            $action = strtolower($placement);
            switch ($action) {
                case 'append':
                case 'prepend':
                case 'set':
                    $this->$action($item);
                    break;
                default:
                    $this->append($item);
                    break;
            }
        }

return $this;
    }

protected function _normalizeType($type)
    {
        switch ($type) {
            case 'Name':
                return 'name';
            case 'HttpEquiv':
                return 'http-equiv';
            default:
                require_once 'Zend/View/Exception.php';
                throw new Zend_View_Exception(sprintf('Invalid type "%s" passed to _normalizeType', $type));
        }
    }

/**
     * Overload method access
     *
     * Allows the following 'virtual' methods:
     * - appendName($keyValue, $content, $modifiers = array())
     * - offsetGetName($index, $keyValue, $content, $modifers = array())
     * - prependName($keyValue, $content, $modifiers = array())
     * - setName($keyValue, $content, $modifiers = array())
     * - appendHttpEquiv($keyValue, $content, $modifiers = array())
     * - offsetGetHttpEquiv($index, $keyValue, $content, $modifers = array())
     * - prependHttpEquiv($keyValue, $content, $modifiers = array())
     * - setHttpEquiv($keyValue, $content, $modifiers = array())
     *
     * @param  string $method
     * @param  array $args
     * @return Zend_View_Helper_HeadMeta
     */
    public function __call($method, $args)
    {
        if (preg_match('/^(?P<action>set|(pre|ap)pend|offsetSet)(?P<type>Name|HttpEquiv)$/', $method, $matches)) {
            $action = $matches['action'];
            $type   = $this->_normalizeType($matches['type']);
            $argc   = count($args);
            $index  = null;

if ('offsetSet' == $action) {
                if (0 < $argc) {
                    $index = array_shift($args);
                    --$argc;
                }
            }

if (2 > $argc) {
                require_once 'Zend/View/Exception.php';
                throw new Zend_View_Exception('Too few arguments provided; requires key value, and content');
            }

if (3 > $argc) {
                $args[] = array();
            }

$item  = $this->createData($type, $args[0], $args[1], $args[2]);

if ('offsetSet' == $action) {
                return $this->offsetSet($index, $item);
            }

if ($action == 'set') {
                //var_dump($this->getContainer());
            }

$this->$action($item);
            return $this;
        }

return parent::__call($method, $args);
    }

/**
     * Determine if item is valid
     *
     * @param  mixed $item
     * @return boolean
     */
    protected function _isValid($item)
    {
        if ((!$item instanceof stdClass)
            || !isset($item->type)
            || !isset($item->content)
            || !isset($item->modifiers))
        {
            return false;
        }

return true;
    }

/**
     * Append
     *
     * @param  string $value
     * @return void
     * @throws Zend_View_Exception
     */
    public function append($value)
    {
        if (!$this->_isValid($value)) {
            require_once 'Zend/View/Exception.php';
            throw new Zend_View_Exception('Invalid value passed to append; please use appendMeta()');
        }

return $this->getContainer()->append($value);
    }

/**
     * OffsetSet
     *
     * @param  string|int $index
     * @param  string $value
     * @return void
     * @throws Zend_View_Exception
     */
    public function offsetSet($index, $value)
    {
        if (!$this->_isValid($value)) {
            require_once 'Zend/View/Exception.php';
            throw new Zend_View_Exception('Invalid value passed to offsetSet; please use offsetSetMeta()');
        }

return $this->getContainer()->offsetSet($index, $value);
    }

/**
     * OffsetUnset
     *
     * @param  string|int $index
     * @return void
     * @throws Zend_View_Exception
     */
    public function offsetUnset($index)
    {
        if (!in_array($index, $this->getContainer()->getKeys())) {
            require_once 'Zend/View/Exception.php';
            throw new Zend_View_Exception('Invalid index passed to offsetUnset.');
        }

return $this->getContainer()->offsetUnset($index);
    }

/**
     * Prepend
     *
     * @param  string $value
     * @return void
     * @throws Zend_View_Exception
     */
    public function prepend($value)
    {
        if (!$this->_isValid($value)) {
            require_once 'Zend/View/Exception.php';
            throw new Zend_View_Exception('Invalid value passed to prepend; please use prependMeta()');
        }

return $this->getContainer()->prepend($value);
    }

/**
     * Set
     *
     * @param  string $value
     * @return void
     * @throws Zend_View_Exception
     */
    public function set($value)
    {
        if (!$this->_isValid($value)) {
            require_once 'Zend/View/Exception.php';
            throw new Zend_View_Exception('Invalid value passed to set; please use setMeta()');
        }

$container = $this->getContainer();
        foreach ($container->getArrayCopy() as $index => $item) {
            if ($item->type == $value->type && $item->{$item->type} == $value->{$value->type}) {
                $this->offsetUnset($index);
            }
        }

return $this->append($value);
    }

/**
     * Build meta HTML string
     *
     * @param  string $type
     * @param  string $typeValue
     * @param  string $content
     * @param  array $modifiers
     * @return string
     */
    public function itemToString(stdClass $item)
    {
        if (!in_array($item->type, $this->_typeKeys)) {
            require_once 'Zend/View/Exception.php';
            throw new Zend_View_Exception(sprintf('Invalid type "%s" provided for meta', $item->type));
        }
        $type = $item->type;

$modifiersString = '';
        foreach ($item->modifiers as $key => $value) {
            if (!in_array($key, $this->_modifierKeys)) {
                continue;
            }
            $modifiersString .= $key . '="' . $this->_escape($value) . '" ';
        }

if ($this->view instanceof Zend_View_Abstract) {
            $tpl = ($this->view->doctype()->isXhtml())
                 ? '<meta %s="%s" content="%s" %s/>'
                 : '<meta %s="%s" content="%s" %s>';
        } else {
            $tpl = '<meta %s="%s" content="%s" %s/>';
        }

$meta = sprintf(
            $tpl,
            $type,
            $this->_escape($item->$type),
            $this->_escape($item->content),
            $modifiersString
        );
        return $meta;
    }

/**
     * Render placeholder as string
     *
     * @param  string|int $indent
     * @return string
     */
    public function toString($indent = null)
    {
        $indent = (null !== $indent)
                ? $this->getWhitespace($indent)
                : $this->getIndent();

$items = array();
        $this->getContainer()->ksort();
        foreach ($this as $item) {
            $items[] = $this->itemToString($item);
        }
        return $indent . implode($this->_escape($this->getSeparator()) . $indent, $items);
    }

/**
     * Create data item for inserting into stack
     *
     * @param  string $type
     * @param  string $typeValue
     * @param  string $content
     * @param  array $modifiers
     * @return stdClass
     */
    public function createData($type, $typeValue, $content, array $modifiers)
    {
        $data            = new stdClass;
        $data->type      = $type;
        $data->$type     = $typeValue;
        $data->content   = $content;
        $data->modifiers = $modifiers;
        return $data;
    }
}

Nama File / Folder	Size	Action
Partial	--	NONE
Placeholder	--	NONE
Abstract.php	1.692KB	Edit File Delete File Rename
DeclareVars.php	3.033KB	Edit File Delete File Rename
Fieldset.php	2.398KB	Edit File Delete File Rename
FormButton.php	3.158KB	Edit File Delete File Rename
FormCheckbox.php	5.385KB	Edit File Delete File Rename
FormElement.php	5.577KB	Edit File Delete File Rename
FormErrors.php	3.944KB	Edit File Delete File Rename
FormFile.php	2.411KB	Edit File Delete File Rename
FormHidden.php	2.086KB	Edit File Delete File Rename
FormImage.php	3.095KB	Edit File Delete File Rename
FormLabel.php	2.161KB	Edit File Delete File Rename
FormMultiCheckbox.php	2.294KB	Edit File Delete File Rename
FormNote.php	1.827KB	Edit File Delete File Rename
FormPassword.php	2.893KB	Edit File Delete File Rename
FormReset.php	2.61KB	Edit File Delete File Rename
FormSelect.php	5.844KB	Edit File Delete File Rename
FormSubmit.php	2.546KB	Edit File Delete File Rename
FormText.php	2.54KB	Edit File Delete File Rename
FormTextarea.php	2.953KB	Edit File Delete File Rename
HeadLink.php	12.98KB	Edit File Delete File Rename
HeadMeta.php	10.598KB	Edit File Delete File Rename
HeadScript.php	14.921KB	Edit File Delete File Rename
HeadStyle.php	11.895KB	Edit File Delete File Rename
HeadTitle.php	5.229KB	Edit File Delete File Rename
HtmlElement.php	3.931KB	Edit File Delete File Rename
HtmlFlash.php	1.946KB	Edit File Delete File Rename
HtmlList.php	2.776KB	Edit File Delete File Rename
HtmlObject.php	2.635KB	Edit File Delete File Rename
HtmlPage.php	2.182KB	Edit File Delete File Rename
HtmlQuicktime.php	2.422KB	Edit File Delete File Rename
InlineScript.php	2.154KB	Edit File Delete File Rename
Interface.php	1.379KB	Edit File Delete File Rename
PaginationControl.php	4.39KB	Edit File Delete File Rename
Partial.php	4.752KB	Edit File Delete File Rename
PartialLoop.php	3.191KB	Edit File Delete File Rename
Placeholder.php	2.529KB	Edit File Delete File Rename
RenderToPlaceholder.php	1.45KB	Edit File Delete File Rename
Translate.php	5.521KB	Edit File Delete File Rename