2016-10-06 15:57:01 +00:00
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<?php
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/**
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* HTML_Common2: port of HTML_Common package to PHP5
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*
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* PHP version 5
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*
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* LICENSE:
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*
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* Copyright (c) 2004-2012, Alexey Borzov <avb@php.net>
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * The names of the authors may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @category HTML
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* @package HTML_Common2
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* @author Alexey Borzov <avb@php.net>
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* @license http://opensource.org/licenses/bsd-license.php New BSD License
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2019-07-03 11:58:28 +00:00
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* @version SVN: $Id$
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2016-10-06 15:57:01 +00:00
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* @link http://pear.php.net/package/HTML_Common2
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*/
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/**
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* Base class for HTML classes
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*
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* Implements methods for working with HTML attributes, parsing and generating
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* attribute strings. Port of HTML_Common class for PHP4 originally written by
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* Adam Daniel with contributions from numerous other developers.
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*
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* @category HTML
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* @package HTML_Common2
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* @author Alexey Borzov <avb@php.net>
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* @license http://opensource.org/licenses/bsd-license.php New BSD License
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* @version Release: 2.1.0
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* @link http://pear.php.net/package/HTML_Common2
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*/
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abstract class HTML_Common2 implements ArrayAccess
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{
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/**
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* Associative array of attributes
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* @var array
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*/
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protected $attributes = array();
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/**
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* Changes to attributes in this list will be announced via onAttributeChange()
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* method rather than performed by HTML_Common2 class itself
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* @var array
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* @see onAttributeChange()
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*/
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protected $watchedAttributes = array();
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/**
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* Indentation level of the element
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* @var int
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*/
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private $_indentLevel = 0;
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/**
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* Comment associated with the element
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* @var string
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*/
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private $_comment = null;
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/**
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* Global options for all elements generated by subclasses of HTML_Common2
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*
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* Preset options are
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* - 'charset': charset parameter used in htmlspecialchars() calls,
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* defaults to 'ISO-8859-1'
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* - 'indent': string used to indent HTML elements, defaults to "\11"
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* - 'linebreak': string used to indicate linebreak, defaults to "\12"
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*
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* @var array
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*/
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private static $_options = array(
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'charset' => 'ISO-8859-1',
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'indent' => "\11",
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'linebreak' => "\12"
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);
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/**
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* Sets global option(s)
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*
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* @param string|array $nameOrOptions Option name or array ('option name' => 'option value')
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* @param mixed $value Option value, if first argument is not an array
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*/
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public static function setOption($nameOrOptions, $value = null)
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{
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if (is_array($nameOrOptions)) {
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foreach ($nameOrOptions as $k => $v) {
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self::setOption($k, $v);
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}
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} else {
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$linebreaks = array('win' => "\15\12", 'unix' => "\12", 'mac' => "\15");
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if ('linebreak' == $nameOrOptions && isset($linebreaks[$value])) {
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$value = $linebreaks[$value];
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}
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self::$_options[$nameOrOptions] = $value;
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}
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}
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/**
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* Returns global option(s)
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*
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* @param string $name Option name
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*
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* @return mixed Option value, null if option does not exist,
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* array of all options if $name is not given
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*/
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public static function getOption($name = null)
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{
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if (null === $name) {
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return self::$_options;
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} else {
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return isset(self::$_options[$name])? self::$_options[$name]: null;
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}
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}
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/**
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* Parses the HTML attributes given as string
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*
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* @param string $attrString HTML attribute string
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*
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* @return array An associative array of attributes
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*/
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protected static function parseAttributes($attrString)
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{
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$attributes = array();
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if (preg_match_all(
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"/(([A-Za-z_:]|[^\\x00-\\x7F])([A-Za-z0-9_:.-]|[^\\x00-\\x7F])*)" .
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"([ \\n\\t\\r]+)?(=([ \\n\\t\\r]+)?(\"[^\"]*\"|'[^']*'|[^ \\n\\t\\r]*))?/",
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$attrString,
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$regs
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)) {
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for ($i = 0; $i < count($regs[1]); $i++) {
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$name = trim($regs[1][$i]);
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$check = trim($regs[0][$i]);
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$value = trim($regs[7][$i]);
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if ($name == $check) {
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$attributes[strtolower($name)] = strtolower($name);
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} else {
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if (!empty($value) && ($value[0] == '\'' || $value[0] == '"')) {
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$value = substr($value, 1, -1);
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}
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$attributes[strtolower($name)] = $value;
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}
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}
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}
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return $attributes;
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}
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/**
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* Creates a valid attribute array from either a string or an array
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*
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* @param string|array $attributes Array of attributes or HTML attribute string
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*
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* @return array An associative array of attributes
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*/
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protected static function prepareAttributes($attributes)
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{
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$prepared = array();
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if (is_string($attributes)) {
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return self::parseAttributes($attributes);
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} elseif (is_array($attributes)) {
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foreach ($attributes as $key => $value) {
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if (is_int($key)) {
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$key = strtolower($value);
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$prepared[$key] = $key;
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} else {
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$prepared[strtolower($key)] = (string)$value;
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}
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}
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}
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return $prepared;
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}
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/**
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* Removes an attribute from an attribute array
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*
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* @param array &$attributes Attribute array
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* @param string $name Name of attribute to remove
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*/
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protected static function removeAttributeArray(array &$attributes, $name)
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{
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unset($attributes[strtolower($name)]);
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}
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/**
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* Creates HTML attribute string from array
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*
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* @param array $attributes Attribute array
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*
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* @return string Attribute string
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*/
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protected static function getAttributesString(array $attributes)
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{
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$str = '';
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$charset = self::getOption('charset');
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foreach ($attributes as $key => $value) {
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$str .= ' ' . $key . '="' . htmlspecialchars($value, ENT_QUOTES, $charset) . '"';
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}
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return $str;
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}
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/**
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* Class constructor, sets default attributes
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*
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* @param array|string $attributes Array of attribute 'name' => 'value' pairs
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* or HTML attribute string
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*/
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public function __construct($attributes = null)
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{
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$this->mergeAttributes($attributes);
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}
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/**
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* Sets the value of the attribute
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*
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* @param string $name Attribute name
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* @param string $value Attribute value (will be set to $name if omitted)
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*
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* @return HTML_Common2
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*/
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public function setAttribute($name, $value = null)
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{
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$name = strtolower($name);
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if (is_null($value)) {
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$value = $name;
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}
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if (in_array($name, $this->watchedAttributes)) {
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$this->onAttributeChange($name, $value);
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} else {
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$this->attributes[$name] = (string)$value;
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}
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return $this;
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}
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/**
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* Returns the value of an attribute
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*
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* @param string $name Attribute name
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*
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* @return string|null Attribute value, null if attribute does not exist
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*/
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public function getAttribute($name)
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{
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$name = strtolower($name);
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return isset($this->attributes[$name])? $this->attributes[$name]: null;
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}
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/**
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* Sets the attributes
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*
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* @param string|array $attributes Array of attribute 'name' => 'value' pairs
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* or HTML attribute string
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*
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* @return HTML_Common2
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*/
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public function setAttributes($attributes)
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{
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$attributes = self::prepareAttributes($attributes);
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$watched = array();
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foreach ($this->watchedAttributes as $watchedKey) {
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if (isset($attributes[$watchedKey])) {
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$this->setAttribute($watchedKey, $attributes[$watchedKey]);
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unset($attributes[$watchedKey]);
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} else {
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$this->removeAttribute($watchedKey);
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}
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if (isset($this->attributes[$watchedKey])) {
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$watched[$watchedKey] = $this->attributes[$watchedKey];
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}
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}
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$this->attributes = array_merge($watched, $attributes);
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return $this;
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}
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/**
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* Returns the attribute array or string
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*
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* @param bool $asString Whether to return attributes as string
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*
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* @return array|string
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*/
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public function getAttributes($asString = false)
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{
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if ($asString) {
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return self::getAttributesString($this->attributes);
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} else {
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return $this->attributes;
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}
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}
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/**
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* Merges the existing attributes with the new ones
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*
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* @param array|string $attributes Array of attribute 'name' => 'value' pairs
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* or HTML attribute string
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*
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* @return HTML_Common2
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*/
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public function mergeAttributes($attributes)
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{
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$attributes = self::prepareAttributes($attributes);
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foreach ($this->watchedAttributes as $watchedKey) {
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if (isset($attributes[$watchedKey])) {
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$this->onAttributeChange($watchedKey, $attributes[$watchedKey]);
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unset($attributes[$watchedKey]);
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}
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}
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$this->attributes = array_merge($this->attributes, $attributes);
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return $this;
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}
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/**
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* Removes an attribute
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*
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* @param string $attribute Name of attribute to remove
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*
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* @return HTML_Common2
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*/
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public function removeAttribute($attribute)
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{
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if (in_array(strtolower($attribute), $this->watchedAttributes)) {
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$this->onAttributeChange(strtolower($attribute), null);
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} else {
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self::removeAttributeArray($this->attributes, $attribute);
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}
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return $this;
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}
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/**
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* Sets the indentation level
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*
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* @param int $level Indentation level
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*
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* @return HTML_Common2
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*/
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public function setIndentLevel($level)
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{
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$level = intval($level);
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if (0 <= $level) {
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$this->_indentLevel = $level;
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}
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return $this;
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}
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/**
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* Gets the indentation level
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*
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* @return int
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*/
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public function getIndentLevel()
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{
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return $this->_indentLevel;
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}
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/**
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* Returns the string to indent the element
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*
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* @return string
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*/
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protected function getIndent()
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{
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return str_repeat(self::getOption('indent'), $this->getIndentLevel());
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}
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/**
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* Sets the comment for the element
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*
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* @param string $comment String to output as HTML comment
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*
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* @return HTML_Common2
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*/
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public function setComment($comment)
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{
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$this->_comment = $comment;
|
|
|
|
return $this;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns the comment associated with the element
|
|
|
|
*
|
|
|
|
* @return string
|
|
|
|
*/
|
|
|
|
public function getComment()
|
|
|
|
{
|
|
|
|
return $this->_comment;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Checks whether the element has given CSS class
|
|
|
|
*
|
|
|
|
* @param string $class CSS Class name
|
|
|
|
*
|
|
|
|
* @return bool
|
|
|
|
*/
|
|
|
|
public function hasClass($class)
|
|
|
|
{
|
|
|
|
$regex = '/(^|\s)' . preg_quote($class, '/') . '(\s|$)/';
|
|
|
|
return (bool)preg_match($regex, $this->getAttribute('class'));
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Adds the given CSS class(es) to the element
|
|
|
|
*
|
|
|
|
* @param string|array $class Class name, multiple class names separated by
|
|
|
|
* whitespace, array of class names
|
|
|
|
*
|
|
|
|
* @return HTML_Common2
|
|
|
|
*/
|
|
|
|
public function addClass($class)
|
|
|
|
{
|
|
|
|
if (!is_array($class)) {
|
|
|
|
$class = preg_split('/\s+/', $class, null, PREG_SPLIT_NO_EMPTY);
|
|
|
|
}
|
|
|
|
$curClass = preg_split(
|
|
|
|
'/\s+/', $this->getAttribute('class'), null, PREG_SPLIT_NO_EMPTY
|
|
|
|
);
|
|
|
|
foreach ($class as $c) {
|
|
|
|
if (!in_array($c, $curClass)) {
|
|
|
|
$curClass[] = $c;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
$this->setAttribute('class', implode(' ', $curClass));
|
|
|
|
|
|
|
|
return $this;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Removes the given CSS class(es) from the element
|
|
|
|
*
|
|
|
|
* @param string|array $class Class name, multiple class names separated by
|
|
|
|
* whitespace, array of class names
|
|
|
|
*
|
|
|
|
* @return HTML_Common2
|
|
|
|
*/
|
|
|
|
public function removeClass($class)
|
|
|
|
{
|
|
|
|
if (!is_array($class)) {
|
|
|
|
$class = preg_split('/\s+/', $class, null, PREG_SPLIT_NO_EMPTY);
|
|
|
|
}
|
|
|
|
$curClass = array_diff(
|
|
|
|
preg_split(
|
|
|
|
'/\s+/', $this->getAttribute('class'), null, PREG_SPLIT_NO_EMPTY
|
|
|
|
),
|
|
|
|
$class
|
|
|
|
);
|
|
|
|
if (0 == count($curClass)) {
|
|
|
|
$this->removeAttribute('class');
|
|
|
|
} else {
|
|
|
|
$this->setAttribute('class', implode(' ', $curClass));
|
|
|
|
}
|
|
|
|
return $this;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns the HTML representation of the element
|
|
|
|
*
|
|
|
|
* This magic method allows using the instances of HTML_Common2 in string
|
|
|
|
* contexts
|
|
|
|
*
|
|
|
|
* @return string
|
|
|
|
*/
|
|
|
|
abstract public function __toString();
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Called if trying to change an attribute with name in $watchedAttributes
|
|
|
|
*
|
|
|
|
* This method is called for each attribute whose name is in the
|
|
|
|
* $watchedAttributes array and which is being changed by setAttribute(),
|
|
|
|
* setAttributes() or mergeAttributes() or removed via removeAttribute().
|
|
|
|
* Note that the operation for the attribute is not carried on after calling
|
|
|
|
* this method, it is the responsibility of this method to change or remove
|
|
|
|
* (or not) the attribute.
|
|
|
|
*
|
|
|
|
* @param string $name Attribute name
|
|
|
|
* @param string $value Attribute value, null if attribute is being removed
|
|
|
|
*/
|
|
|
|
protected function onAttributeChange($name, $value = null)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Whether or not an offset (HTML attribute) exists
|
|
|
|
*
|
|
|
|
* @param string $offset An offset to check for.
|
|
|
|
*
|
|
|
|
* @return boolean Returns true on success or false on failure.
|
|
|
|
* @link http://php.net/manual/en/arrayaccess.offsetexists.php
|
|
|
|
*/
|
|
|
|
public function offsetExists($offset)
|
|
|
|
{
|
|
|
|
return isset($this->attributes[strtolower($offset)]);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns the value at specified offset (i.e. attribute name)
|
|
|
|
*
|
|
|
|
* @param string $offset The offset to retrieve.
|
|
|
|
*
|
|
|
|
* @return string|null
|
|
|
|
* @link http://php.net/manual/en/arrayaccess.offsetget.php
|
|
|
|
* @see getAttribute()
|
|
|
|
*/
|
|
|
|
public function offsetGet($offset)
|
|
|
|
{
|
|
|
|
return $this->getAttribute($offset);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Assigns a value to the specified offset (i.e. attribute name)
|
|
|
|
*
|
|
|
|
* @param string $offset The offset to assign the value to
|
|
|
|
* @param string $value The value to set
|
|
|
|
*
|
|
|
|
* @return void
|
|
|
|
* @link http://php.net/manual/en/arrayaccess.offsetset.php
|
|
|
|
* @see setAttribute()
|
|
|
|
*/
|
|
|
|
public function offsetSet($offset, $value)
|
|
|
|
{
|
|
|
|
if (null !== $offset) {
|
|
|
|
$this->setAttribute($offset, $value);
|
|
|
|
} else {
|
|
|
|
// handles $foo[] = 'disabled';
|
|
|
|
$this->setAttribute($value);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Unsets an offset (i.e. removes an attribute)
|
|
|
|
*
|
|
|
|
* @param string $offset The offset to unset
|
|
|
|
*
|
|
|
|
* @return void
|
|
|
|
* @link http://php.net/manual/en/arrayaccess.offsetunset.php
|
|
|
|
* @see removeAttribute
|
|
|
|
*/
|
|
|
|
public function offsetUnset($offset)
|
|
|
|
{
|
|
|
|
$this->removeAttribute($offset);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
?>
|