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<?php
namespace {
/**
* Proxy class for HTML_QuickForm2 renderers and their plugins
*
* PHP version 5
*
* LICENSE:
*
* Copyright (c) 2006-2010, Alexey Borzov <avb@php.net>,
* Bertrand Mansion <golgote@mamasam.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * The names of the authors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @category HTML
* @package HTML_QuickForm2
* @author Alexey Borzov <avb@php.net>
* @author Bertrand Mansion <golgote@mamasam.com>
* @license http://opensource.org/licenses/bsd-license.php New BSD License
* @version SVN: $Id: Proxy.php 299706 2010-05-24 18:32:37Z avb $
* @link http://pear.php.net/package/HTML_QuickForm2
*/
/**
* Abstract base class for QuickForm2 renderers
*/
// require_once 'HTML/QuickForm2/Renderer.php';
/**
* Proxy class for HTML_QuickForm2 renderers and their plugins
*
* This class serves two purposes:
* <ol>
* <li>Aggregates renderer and its plugins. From user's point of view
* renderer plugins simply add new methods to renderer instances.</li>
* <li>Restricts access to renderer properties and methods. Those are defined
* as 'public' to allow easy access from plugins, but only methods
* with names explicitly returned by Renderer::exportMethods() are
* available to the outside world.</li>
* </ol>
*
* @category HTML
* @package HTML_QuickForm2
* @author Alexey Borzov <avb@php.net>
* @author Bertrand Mansion <golgote@mamasam.com>
* @version Release: @package_version@
*/
class HTML_QuickForm2_Renderer_Proxy extends \HTML_QuickForm2_Renderer
{
/**
* Renderer instance
* @var HTML_QuickForm2_Renderer
*/
private $_renderer;
/**
* Additional renderer methods to proxy via __call(), as returned by exportMethods()
* @var array
*/
private $_rendererMethods = array();
/**
* Reference to a list of registered renderer plugins for that renderer type
* @var array
*/
private $_pluginClasses;
/**
* Plugins for this renderer
* @var array
*/
private $_plugins = array();
/**
* Plugin methods to call via __call() magic method
*
* Array has the form ('lowercase method name' => 'index in _plugins array')
*
* @var array
*/
private $_pluginMethods = array();
/**
* Constructor, sets proxied renderer and its plugins
*
* @param HTML_QuickForm2_Renderer Renderer instance to proxy
* @param array Plugins registered for that renderer type
*/
protected function __construct(\HTML_QuickForm2_Renderer $renderer, array &$pluginClasses)
{
foreach ($renderer->exportMethods() as $method) {
$this->_rendererMethods[\strtolower($method)] = \true;
}
$this->_renderer = $renderer;
$this->_pluginClasses =& $pluginClasses;
}
/**
* Magic function; call an imported method of a renderer or its plugin
*
* @param string method name
* @param array method arguments
* @return mixed
*/
public function __call($name, $arguments)
{
$lower = \strtolower($name);
if (isset($this->_rendererMethods[$lower])) {
// support fluent interfaces
$ret = \call_user_func_array(array($this->_renderer, $name), $arguments);
return $ret === $this->_renderer ? $this : $ret;
}
// any additional plugins since last __call()?
for ($i = \count($this->_plugins); $i < \count($this->_pluginClasses); $i++) {
list($className, $includeFile) = $this->_pluginClasses[$i];
if (!\class_exists($className)) {
\HTML_QuickForm2_Loader::loadClass($className, $includeFile);
}
$this->addPlugin($i, new $className());
}
if (isset($this->_pluginMethods[$lower])) {
return \call_user_func_array(array($this->_plugins[$this->_pluginMethods[$lower]], $name), $arguments);
}
\trigger_error("Fatal error: Call to undefined method " . \get_class($this->_renderer) . "::" . $name . "()", \E_USER_ERROR);
}
/**
* Adds a plugin for the current renderer instance
*
* Plugin's methods are imported and can be later called as this object's own
*
* @param HTML_QuickForm2_Renderer_Plugin a plugin instance
* @throws HTML_QuickForm2_InvalidArgumentException if a plugin has already
* imported name
*/
protected function addPlugin($index, \HTML_QuickForm2_Renderer_Plugin $plugin)
{
$methods = array();
$reflection = new \ReflectionObject($plugin);
foreach ($reflection->getMethods(\ReflectionMethod::IS_PUBLIC) as $method) {
$lower = \strtolower($method->getName());
if ('HTML_QuickForm2_Renderer_Plugin' == $method->getDeclaringClass()->getName()) {
continue;
} elseif (isset($this->_rendererMethods[$lower]) || isset($this->_pluginMethods[$lower])) {
throw new \HTML_QuickForm2_InvalidArgumentException('Duplicate method name: name ' . $method->getName() . ' in plugin ' . \get_class($plugin) . ' already taken by ' . (isset($this->_rendererMethods[$lower]) ? \get_class($this->_renderer) : \get_class($this->_plugins[$this->_pluginMethods[$lower]])));
}
$methods[$lower] = $index;
}
$plugin->setRenderer($this->_renderer);
$this->_plugins[$index] = $plugin;
$this->_pluginMethods += $methods;
}
/**#@+
* Proxies for methods defined in {@link HTML_QuickForm2_Renderer}
*/
public function setOption($nameOrOptions, $value = null)
{
$this->_renderer->setOption($nameOrOptions, $value);
return $this;
}
public function getOption($name = null)
{
return $this->_renderer->getOption($name);
}
public function getJavascriptBuilder()
{
return $this->_renderer->getJavascriptBuilder();
}
public function setJavascriptBuilder(\HTML_QuickForm2_JavascriptBuilder $builder = null)
{
$this->_renderer->setJavascriptBuilder($builder);
return $this;
}
public function renderElement(\HTML_QuickForm2_Node $element)
{
$this->_renderer->renderElement($element);
}
public function renderHidden(\HTML_QuickForm2_Node $element)
{
$this->_renderer->renderHidden($element);
}
public function startForm(\HTML_QuickForm2_Node $form)
{
$this->_renderer->startForm($form);
}
public function finishForm(\HTML_QuickForm2_Node $form)
{
$this->_renderer->finishForm($form);
}
public function startContainer(\HTML_QuickForm2_Node $container)
{
$this->_renderer->startContainer($container);
}
public function finishContainer(\HTML_QuickForm2_Node $container)
{
$this->_renderer->finishContainer($container);
}
public function startGroup(\HTML_QuickForm2_Node $group)
{
$this->_renderer->startGroup($group);
}
public function finishGroup(\HTML_QuickForm2_Node $group)
{
$this->_renderer->finishGroup($group);
}
/**#@-*/
public function __toString()
{
if (\method_exists($this->_renderer, '__toString')) {
return $this->_renderer->__toString();
}
\trigger_error("Fatal error: Object of class " . \get_class($this->_renderer) . " could not be converted to string", \E_USER_ERROR);
}
}
}