/library/Zend/View/Helper/HtmlElement.php

  1<?php
  2/**
  3 * Zend Framework
  4 *
  5 * LICENSE
  6 *
  7 * This source file is subject to the new BSD license that is bundled
  8 * with this package in the file LICENSE.txt.
  9 * It is also available through the world-wide-web at this URL:
 10 * http://framework.zend.com/license/new-bsd
 11 * If you did not receive a copy of the license and are unable to
 12 * obtain it through the world-wide-web, please send an email
 13 * to license@zend.com so we can send you a copy immediately.
 14 *
 15 * @category   Zend
 16 * @package    Zend_View
 17 * @subpackage Helper
 18 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 19 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 20 * @version    $Id: HtmlElement.php 24594 2012-01-05 21:27:01Z matthew $
 21 */
 22
 23/**
 24 * @see Zend_View_Helper_Abstract
 25 */
 26require_once 'Zend/View/Helper/Abstract.php';
 27
 28/**
 29 * @category   Zend
 30 * @package    Zend_View
 31 * @subpackage Helper
 32 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 33 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 34 */
 35abstract class Zend_View_Helper_HtmlElement extends Zend_View_Helper_Abstract
 36{
 37    /**
 38     * EOL character
 39     */
 40    const EOL = "\n";
 41
 42    /**
 43     * The tag closing bracket
 44     *
 45     * @var string
 46     */
 47    protected $_closingBracket = null;
 48
 49    /**
 50     * Get the tag closing bracket
 51     *
 52     * @return string
 53     */
 54    public function getClosingBracket()
 55    {
 56        if (!$this->_closingBracket) {
 57            if ($this->_isXhtml()) {
 58                $this->_closingBracket = ' />';
 59            } else {
 60                $this->_closingBracket = '>';
 61            }
 62        }
 63
 64        return $this->_closingBracket;
 65    }
 66
 67    /**
 68     * Is doctype XHTML?
 69     *
 70     * @return boolean
 71     */
 72    protected function _isXhtml()
 73    {
 74        $doctype = $this->view->doctype();
 75        return $doctype->isXhtml();
 76    }
 77
 78    /**
 79     * Is doctype strict?
 80     *
 81     * @return boolean
 82     */
 83    protected function _isStrictDoctype()
 84    {
 85        $doctype = $this->view->doctype();
 86        return $doctype->isStrict();
 87    }
 88    
 89    /**
 90     * Converts an associative array to a string of tag attributes.
 91     *
 92     * @access public
 93     *
 94     * @param array $attribs From this array, each key-value pair is
 95     * converted to an attribute name and value.
 96     *
 97     * @return string The XHTML for the attributes.
 98     */
 99    protected function _htmlAttribs($attribs)
100    {
101        $xhtml = '';
102        foreach ((array) $attribs as $key => $val) {
103            $key = $this->view->escape($key);
104
105            if (('on' == substr($key, 0, 2)) || ('constraints' == $key)) {
106                // Don't escape event attributes; _do_ substitute double quotes with singles
107                if (!is_scalar($val)) {
108                    // non-scalar data should be cast to JSON first
109                    require_once 'Zend/Json.php';
110                    $val = Zend_Json::encode($val);
111                }
112                // Escape single quotes inside event attribute values.
113                // This will create html, where the attribute value has
114                // single quotes around it, and escaped single quotes or
115                // non-escaped double quotes inside of it
116                $val = str_replace('\'', '&#39;', $val);
117            } else {
118                if (is_array($val)) {
119                    $val = implode(' ', $val);
120                }
121                $val = $this->view->escape($val);
122            }
123
124            if ('id' == $key) {
125                $val = $this->_normalizeId($val);
126            }
127
128            if (strpos($val, '"') !== false) {
129                $xhtml .= " $key='$val'";
130            } else {
131                $xhtml .= " $key=\"$val\"";
132            }
133
134        }
135        return $xhtml;
136    }
137
138    /**
139     * Normalize an ID
140     *
141     * @param  string $value
142     * @return string
143     */
144    protected function _normalizeId($value)
145    {
146        if (strstr($value, '[')) {
147            if ('[]' == substr($value, -2)) {
148                $value = substr($value, 0, strlen($value) - 2);
149            }
150            $value = trim($value, ']');
151            $value = str_replace('][', '-', $value);
152            $value = str_replace('[', '-', $value);
153        }
154        return $value;
155    }
156}