400 lines
12 KiB
PHP
400 lines
12 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.
|
|
*
|
|
* @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';
|
|
|
|
/**
|
|
* Helper for setting and retrieving stylesheets
|
|
*
|
|
* @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_HeadStyle extends Zend_View_Helper_Placeholder_Container_Standalone
|
|
{
|
|
/**
|
|
* Registry key for placeholder
|
|
* @var string
|
|
*/
|
|
protected $_regKey = 'Zend_View_Helper_HeadStyle';
|
|
|
|
/**
|
|
* Allowed optional attributes
|
|
* @var array
|
|
*/
|
|
protected $_optionalAttributes = array('lang', 'title', 'media', 'dir');
|
|
|
|
/**
|
|
* Allowed media types
|
|
* @var array
|
|
*/
|
|
protected $_mediaTypes = array(
|
|
'all', 'aural', 'braille', 'handheld', 'print',
|
|
'projection', 'screen', 'tty', 'tv'
|
|
);
|
|
|
|
/**
|
|
* Capture type and/or attributes (used for hinting during capture)
|
|
* @var string
|
|
*/
|
|
protected $_captureAttrs = null;
|
|
|
|
/**
|
|
* Capture lock
|
|
* @var bool
|
|
*/
|
|
protected $_captureLock;
|
|
|
|
/**
|
|
* Capture type (append, prepend, set)
|
|
* @var string
|
|
*/
|
|
protected $_captureType;
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* Set separator to PHP_EOL.
|
|
*
|
|
* @return void
|
|
*/
|
|
public function __construct()
|
|
{
|
|
parent::__construct();
|
|
$this->setSeparator(PHP_EOL);
|
|
}
|
|
|
|
/**
|
|
* Return headStyle object
|
|
*
|
|
* Returns headStyle helper object; optionally, allows specifying
|
|
*
|
|
* @param string $content Stylesheet contents
|
|
* @param string $placement Append, prepend, or set
|
|
* @param string|array $attributes Optional attributes to utilize
|
|
* @return Zend_View_Helper_HeadStyle
|
|
*/
|
|
public function headStyle($content = null, $placement = 'APPEND', $attributes = array())
|
|
{
|
|
if ((null !== $content) && is_string($content)) {
|
|
switch (strtoupper($placement)) {
|
|
case 'SET':
|
|
$action = 'setStyle';
|
|
break;
|
|
case 'PREPEND':
|
|
$action = 'prependStyle';
|
|
break;
|
|
case 'APPEND':
|
|
default:
|
|
$action = 'appendStyle';
|
|
break;
|
|
}
|
|
$this->$action($content, $attributes);
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Overload method calls
|
|
*
|
|
* Allows the following method calls:
|
|
* - appendStyle($content, $attributes = array())
|
|
* - offsetSetStyle($index, $content, $attributes = array())
|
|
* - prependStyle($content, $attributes = array())
|
|
* - setStyle($content, $attributes = array())
|
|
*
|
|
* @param string $method
|
|
* @param array $args
|
|
* @return void
|
|
* @throws Zend_View_Exception When no $content provided or invalid method
|
|
*/
|
|
public function __call($method, $args)
|
|
{
|
|
if (preg_match('/^(?P<action>set|(ap|pre)pend|offsetSet)(Style)$/', $method, $matches)) {
|
|
$index = null;
|
|
$argc = count($args);
|
|
$action = $matches['action'];
|
|
|
|
if ('offsetSet' == $action) {
|
|
if (0 < $argc) {
|
|
$index = array_shift($args);
|
|
--$argc;
|
|
}
|
|
}
|
|
|
|
if (1 > $argc) {
|
|
require_once 'Zend/View/Exception.php';
|
|
throw new Zend_View_Exception(sprintf('Method "%s" requires minimally content for the stylesheet', $method));
|
|
}
|
|
|
|
$content = $args[0];
|
|
$attrs = array();
|
|
if (isset($args[1])) {
|
|
$attrs = (array) $args[1];
|
|
}
|
|
|
|
$item = $this->createData($content, $attrs);
|
|
|
|
if ('offsetSet' == $action) {
|
|
$this->offsetSet($index, $item);
|
|
} else {
|
|
$this->$action($item);
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
return parent::__call($method, $args);
|
|
}
|
|
|
|
/**
|
|
* Determine if a value is a valid style tag
|
|
*
|
|
* @param mixed $value
|
|
* @param string $method
|
|
* @return boolean
|
|
*/
|
|
protected function _isValid($value)
|
|
{
|
|
if ((!$value instanceof stdClass)
|
|
|| !isset($value->content)
|
|
|| !isset($value->attributes))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Override append to enforce style creation
|
|
*
|
|
* @param mixed $value
|
|
* @return void
|
|
*/
|
|
public function append($value)
|
|
{
|
|
if (!$this->_isValid($value)) {
|
|
require_once 'Zend/View/Exception.php';
|
|
throw new Zend_View_Exception('Invalid value passed to append; please use appendStyle()');
|
|
}
|
|
|
|
return $this->getContainer()->append($value);
|
|
}
|
|
|
|
/**
|
|
* Override offsetSet to enforce style creation
|
|
*
|
|
* @param string|int $index
|
|
* @param mixed $value
|
|
* @return void
|
|
*/
|
|
public function offsetSet($index, $value)
|
|
{
|
|
if (!$this->_isValid($value)) {
|
|
require_once 'Zend/View/Exception.php';
|
|
throw new Zend_View_Exception('Invalid value passed to offsetSet; please use offsetSetStyle()');
|
|
}
|
|
|
|
return $this->getContainer()->offsetSet($index, $value);
|
|
}
|
|
|
|
/**
|
|
* Override prepend to enforce style creation
|
|
*
|
|
* @param mixed $value
|
|
* @return void
|
|
*/
|
|
public function prepend($value)
|
|
{
|
|
if (!$this->_isValid($value)) {
|
|
require_once 'Zend/View/Exception.php';
|
|
throw new Zend_View_Exception('Invalid value passed to prepend; please use prependStyle()');
|
|
}
|
|
|
|
return $this->getContainer()->prepend($value);
|
|
}
|
|
|
|
/**
|
|
* Override set to enforce style creation
|
|
*
|
|
* @param mixed $value
|
|
* @return void
|
|
*/
|
|
public function set($value)
|
|
{
|
|
if (!$this->_isValid($value)) {
|
|
require_once 'Zend/View/Exception.php';
|
|
throw new Zend_View_Exception('Invalid value passed to set; please use setStyle()');
|
|
}
|
|
|
|
return $this->getContainer()->set($value);
|
|
}
|
|
|
|
/**
|
|
* Start capture action
|
|
*
|
|
* @param mixed $captureType
|
|
* @param string $typeOrAttrs
|
|
* @return void
|
|
*/
|
|
public function captureStart($type = Zend_View_Helper_Placeholder_Container_Abstract::APPEND, $attrs = null)
|
|
{
|
|
if ($this->_captureLock) {
|
|
require_once 'Zend/View/Helper/Placeholder/Container/Exception.php';
|
|
throw new Zend_View_Helper_Placeholder_Container_Exception('Cannot nest headStyle captures');
|
|
}
|
|
|
|
$this->_captureLock = true;
|
|
$this->_captureAttrs = $attrs;
|
|
$this->_captureType = $type;
|
|
ob_start();
|
|
}
|
|
|
|
/**
|
|
* End capture action and store
|
|
*
|
|
* @return void
|
|
*/
|
|
public function captureEnd()
|
|
{
|
|
$content = ob_get_clean();
|
|
$attrs = $this->_captureAttrs;
|
|
$this->_captureAttrs = null;
|
|
$this->_captureLock = false;
|
|
|
|
switch ($this->_captureType) {
|
|
case Zend_View_Helper_Placeholder_Container_Abstract::SET:
|
|
$this->setStyle($content, $attrs);
|
|
break;
|
|
case Zend_View_Helper_Placeholder_Container_Abstract::PREPEND:
|
|
$this->prependStyle($content, $attrs);
|
|
break;
|
|
case Zend_View_Helper_Placeholder_Container_Abstract::APPEND:
|
|
default:
|
|
$this->appendStyle($content, $attrs);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Convert content and attributes into valid style tag
|
|
*
|
|
* @param stdClass $item Item to render
|
|
* @param string $indent Indentation to use
|
|
* @return string
|
|
*/
|
|
public function itemToString(stdClass $item, $indent)
|
|
{
|
|
$attrString = '';
|
|
if (!empty($item->attributes)) {
|
|
foreach ($item->attributes as $key => $value) {
|
|
if (!in_array($key, $this->_optionalAttributes)) {
|
|
continue;
|
|
}
|
|
if ('media' == $key) {
|
|
if(false === strpos($value, ',')) {
|
|
if (!in_array($value, $this->_mediaTypes)) {
|
|
continue;
|
|
}
|
|
} else {
|
|
$media_types = explode(',', $value);
|
|
$value = '';
|
|
foreach($media_types as $type) {
|
|
if (!in_array($type, $this->_mediaTypes)) {
|
|
continue;
|
|
}
|
|
$value .= $type .',';
|
|
}
|
|
$value = substr($value, 0, -1);
|
|
}
|
|
}
|
|
$attrString .= sprintf(' %s="%s"', $key, htmlspecialchars($value));
|
|
}
|
|
}
|
|
|
|
$html = '<style type="text/css"' . $attrString . '>' . PHP_EOL
|
|
. $indent . '<!--' . PHP_EOL . $indent . $item->content . PHP_EOL . $indent . '-->' . PHP_EOL
|
|
. '</style>';
|
|
|
|
if (isset($item->attributes['conditional'])
|
|
&& !empty($item->attributes['conditional'])
|
|
&& is_string($item->attributes['conditional']))
|
|
{
|
|
$html = '<!--[if ' . $item->attributes['conditional'] . ']> ' . $html . '<![endif]-->';
|
|
}
|
|
|
|
return $html;
|
|
}
|
|
|
|
/**
|
|
* Create string representation of placeholder
|
|
*
|
|
* @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 $item) {
|
|
if (!$this->_isValid($item)) {
|
|
continue;
|
|
}
|
|
$items[] = $this->itemToString($item, $indent);
|
|
}
|
|
|
|
$return = $indent . implode($this->getSeparator() . $indent, $items);
|
|
$return = preg_replace("/(\r\n?|\n)/", '$1' . $indent, $return);
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Create data item for use in stack
|
|
*
|
|
* @param string $content
|
|
* @param array $attributes
|
|
* @return stdClass
|
|
*/
|
|
public function createData($content, array $attributes)
|
|
{
|
|
if (!isset($attributes['media'])) {
|
|
$attributes['media'] = 'screen';
|
|
} else if(is_array($attributes['media'])) {
|
|
$attributes['media'] = implode(',', $attributes['media']);
|
|
}
|
|
|
|
$data = new stdClass();
|
|
$data->content = $content;
|
|
$data->attributes = $attributes;
|
|
|
|
return $data;
|
|
}
|
|
}
|