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- <?php
- /**
- * Base class for CSS definitions
- *
- * PHP versions 4 and 5
- *
- * LICENSE: This source file is subject to version 3.01 of the PHP license
- * that is available through the world-wide-web at the following URI:
- * http://www.php.net/license/3_01.txt. If you did not receive a copy of
- * the PHP License and are unable to obtain it through the web, please
- * send a note to license@php.net so we can mail you a copy immediately.
- *
- * @category HTML
- * @package HTML_CSS
- * @author Klaus Guenther <klaus@capitalfocus.org>
- * @author Laurent Laville <pear@laurent-laville.org>
- * @copyright 2003-2007 The PHP Group
- * @license http://www.php.net/license/3_01.txt PHP License 3.01
- * @version CVS: $Id: CSS.php,v 1.57 2007/01/03 16:21:41 farell Exp $
- * @link http://pear.php.net/package/HTML_CSS
- */
-
- require_once 'HTML/Common.php';
-
- /**#@+
- * Basic error codes
- *
- * @var integer
- * @since 0.3.3
- */
- define ('HTML_CSS_ERROR_UNKNOWN', -1);
- define ('HTML_CSS_ERROR_INVALID_INPUT', -100);
- define ('HTML_CSS_ERROR_INVALID_GROUP', -101);
- define ('HTML_CSS_ERROR_NO_GROUP', -102);
- define ('HTML_CSS_ERROR_NO_ELEMENT', -103);
- define ('HTML_CSS_ERROR_NO_ELEMENT_PROPERTY', -104);
- define ('HTML_CSS_ERROR_NO_FILE', -105);
- define ('HTML_CSS_ERROR_WRITE_FILE', -106);
- /**#@-*/
-
- /**
- * Base class for CSS definitions
- *
- * This class handles the details for creating properly
- * constructed CSS declarations.
- *
- * @category HTML
- * @package HTML_CSS
- * @author Klaus Guenther <klaus@capitalfocus.org>
- * @author Laurent Laville <pear@laurent-laville.org>
- * @copyright 2003-2007 The PHP Group
- * @license http://www.php.net/license/3_01.txt PHP License 3.01
- * @version Release: 1.1.2
- * @link http://pear.php.net/package/HTML_CSS
- */
-
- class HTML_CSS extends HTML_Common
- {
- /**
- * Contains the CSS definitions.
- *
- * @var array
- * @since 0.2.0
- * @access private
- */
- var $_css = array();
-
- /**
- * Contains "alibis" (other elements that share a definition) of an element defined in CSS
- *
- * @var array
- * @since 0.2.0
- * @access private
- */
- var $_alibis = array();
-
- /**
- * Controls caching of the page
- *
- * @var bool
- * @since 0.2.0
- * @access private
- * @see setCache()
- */
- var $_cache = true;
-
- /**
- * Contains the character encoding string
- *
- * @var string
- * @since 0.2.0
- * @access private
- * @see setCharset()
- */
- var $_charset = 'iso-8859-1';
-
- /**
- * Contains last assigned index for duplicate styles
- *
- * @var array
- * @since 0.3.0
- * @access private
- */
- var $_duplicateCounter = 0;
-
- /**
- * Contains grouped styles
- *
- * @var array
- * @since 0.3.0
- * @access private
- */
- var $_groups = array();
-
- /**
- * Determines whether groups are output prior to elements
- *
- * @var array
- * @since 1.0.0
- * @access private
- */
- var $_groupsFirst = true;
-
- /**
- * Number of CSS definition groups
- *
- * @var int
- * @since 0.3.0
- * @access private
- */
- var $_groupCount = 0;
-
- /**
- * Defines whether to output all properties on one line
- *
- * @var bool
- * @since 0.3.3
- * @access private
- * @see setSingleLineOutput()
- */
- var $_singleLine = false;
-
- /**
- * Defines whether element selectors should be automatically lowercased.
- * Determines how parseSelectors treats the data.
- *
- * @var bool
- * @since 0.3.2
- * @access private
- * @see setXhtmlCompliance()
- */
- var $_xhtmlCompliant = true;
-
- /**
- * Allows to have duplicate rules in selector
- * Useful for IE hack.
- *
- * @var bool
- * @since 1.0.0
- * @access private
- */
- var $_allowDuplicates = false;
-
- /**
- * Error message callback.
- * This will be used to generate the error message
- * from the error code.
- *
- * @var false|string|array
- * @since 1.0.0
- * @access private
- * @see _initErrorStack()
- */
- var $_callback_message = false;
-
- /**
- * Error context callback.
- * This will be used to generate the error context for an error.
- *
- * @var false|string|array
- * @since 1.0.0
- * @access private
- * @see _initErrorStack()
- */
- var $_callback_context = false;
-
- /**
- * Error push callback.
- * The return value will be used to determine whether to allow
- * an error to be pushed or logged.
- *
- * @var false|string|array
- * @since 1.0.0
- * @access private
- * @see _initErrorStack()
- */
- var $_callback_push = false;
-
- /**
- * Error handler callback.
- * This will handle any errors raised by this package.
- *
- * @var false|string|array
- * @since 1.0.0
- * @access private
- * @see _initErrorStack()
- */
- var $_callback_errorhandler = false;
-
- /**
- * Associative array of key-value pairs
- * that are used to specify any handler-specific settings.
- *
- * @var array
- * @since 1.0.0
- * @access private
- * @see _initErrorStack()
- */
- var $_errorhandler_options = array();
-
- /**
- * Last error that might occured
- *
- * @var false|mixed
- * @since 1.0.0RC2
- * @access private
- * @see isError(), raiseError()
- */
- var $_lastError = false;
-
-
- /**
- * Class constructor
- *
- * @param array $attributes (optional) Pass options to the constructor.
- * Valid options are :
- * - xhtml (sets xhtml compliance),
- * - tab (sets indent string),
- * - filename (name of file to be parsed),
- * - cache (determines whether the nocache headers are sent),
- * - oneline (whether to output each definition on one line),
- * - groupsfirst (determines whether to output groups before elements)
- * - allowduplicates (allow to have duplicate rules in selector)
- * @param array $errorPrefs (optional) has to configure error handler
- *
- * @since 0.2.0
- * @access public
- */
- function HTML_CSS($attributes = array(), $errorPrefs = array())
- {
- $this->_initErrorStack($errorPrefs);
-
- if ($attributes) {
- $attributes = $this->_parseAttributes($attributes);
- }
- if ((isset($attributes['xhtml']))
- && (is_bool($attributes['xhtml']))) {
- $this->setXhtmlCompliance($attributes['xhtml']);
- }
- if (isset($attributes['tab'])) {
- $this->setTab($attributes['tab']);
- }
- if (isset($attributes['filename'])) {
- $this->parseFile($attributes['filename']);
- }
- if ((isset($attributes['cache']))
- && (is_bool($attributes['cache']))) {
- $this->setCache($attributes['cache']);
- }
- if ((isset($attributes['oneline']))
- && (is_bool($attributes['online']))) {
- $this->setSingleLineOutput($attributes['online']);
- }
- if ((isset($attributes['groupsfirst']))
- && (is_bool($attributes['groupsfirst']))) {
- $this->setOutputGroupsFirst($attributes['groupsfirst']);
- }
- if ((isset($attributes['allowduplicates']))
- && (is_bool($attributes['allowduplicates']))) {
- $this->_allowDuplicates = $attributes['allowduplicates'];
- }
- }
-
- /**
- * Returns the current API version
- * Since 1.0.0 a string is returned rather than a float (for previous versions).
- *
- * @return string compatible with php.version_compare()
- * @since 0.2.0
- * @access public
- */
- function apiVersion()
- {
- return '1.1.0';
- }
-
- /**
- * Determines whether definitions are output single line or multiline
- *
- * @param bool $value
- *
- * @return void|PEAR_Error
- * @since 0.3.3
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT
- */
- function setSingleLineOutput($value)
- {
- if (!is_bool($value)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$value',
- 'was' => gettype($value),
- 'expected' => 'boolean',
- 'paramnum' => 1));
- }
- $this->_singleLine = $value;
- }
-
- /**
- * Determines whether groups are output before elements or not
- *
- * @param bool $value
- *
- * @return void|PEAR_Error
- * @since 0.3.3
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT
- */
- function setOutputGroupsFirst($value)
- {
- if (!is_bool($value)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$value',
- 'was' => gettype($value),
- 'expected' => 'boolean',
- 'paramnum' => 1));
- }
- $this->_groupsFirst = $value;
- }
-
- /**
- * Parses a string containing selector(s).
- * It processes it and returns an array or string containing
- * modified selectors (depends on XHTML compliance setting;
- * defaults to ensure lowercase element names)
- *
- * @param string $selectors Selector string
- * @param int $outputMode (optional) 0 = string; 1 = array; 2 = deep array
- *
- * @return mixed|PEAR_Error
- * @since 0.3.2
- * @access protected
- * @throws HTML_CSS_ERROR_INVALID_INPUT
- */
- function parseSelectors($selectors, $outputMode = 0)
- {
- if (!is_string($selectors)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$selectors',
- 'was' => gettype($selectors),
- 'expected' => 'string',
- 'paramnum' => 1));
-
- } elseif (!is_int($outputMode)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$outputMode',
- 'was' => gettype($outputMode),
- 'expected' => 'integer',
- 'paramnum' => 2));
-
- } elseif ($outputMode < 0 || $outputMode > 3) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'error',
- array('var' => '$outputMode',
- 'was' => $outputMode,
- 'expected' => '0 | 1 | 2 | 3',
- 'paramnum' => 2));
- }
-
- $selectors_array = explode(',', $selectors);
- $i = 0;
- foreach ($selectors_array as $selector) {
- // trim to remove possible whitespace
- $selector = trim($this->collapseInternalSpaces($selector));
- if (strpos($selector, ' ')) {
- $sel_a = array();
- foreach(explode(' ', $selector) as $sub_selector) {
- $sel_a[] = $this->parseSelectors($sub_selector, $outputMode);
- }
- if ($outputMode === 0) {
- $array[$i] = implode(' ', $sel_a);
- } else {
- $sel_a2 = array();
- foreach ($sel_a as $sel_a_temp) {
- $sel_a2 = array_merge($sel_a2, $sel_a_temp);
- }
- if ($outputMode == 2) {
- $array[$i]['inheritance'] = $sel_a2;
- } else {
- $array[$i] = implode(' ', $sel_a2);
- }
- }
- $i++;
- } else {
- // initialize variables
- $element = '';
- $id = '';
- $class = '';
- $pseudo = '';
-
- if (strpos($selector, ':') !== false) {
- $pseudo = strstr($selector, ':');
- $selector = substr($selector, 0 , strpos($selector, ':'));
- }
- if (strpos($selector, '.') !== false){
- $class = strstr($selector, '.');
- $selector = substr($selector, 0 , strpos($selector, '.'));
- }
- if (strpos($selector, '#') !== false) {
- $id = strstr($selector, '#');
- $selector = substr($selector, 0 , strpos($selector, '#'));
- }
- if ($selector != '') {
- $element = $selector;
- }
- if ($this->_xhtmlCompliant){
- $element = strtolower($element);
- $pseudo = strtolower($pseudo);
- }
- if ($outputMode == 2) {
- $array[$i]['element'] = $element;
- $array[$i]['id'] = $id;
- $array[$i]['class'] = $class;
- $array[$i]['pseudo'] = $pseudo;
- } else {
- $array[$i] = $element.$id.$class.$pseudo;
- }
- $i++;
- }
- }
- if ($outputMode == 0) {
- $output = implode(', ', $array);
- return $output;
- } else {
- return $array;
- }
- }
-
- /**
- * Strips excess spaces in string.
- *
- * @param string $subject string to format
- *
- * @return string
- * @since 0.3.2
- * @access protected
- */
- function collapseInternalSpaces($subject)
- {
- $string = preg_replace('/\s+/', ' ', $subject);
- return $string;
- }
-
- /**
- * Sets XHTML compliance
- *
- * @param bool $value Boolean value
- *
- * @return void|PEAR_Error
- * @since 0.3.2
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT
- */
- function setXhtmlCompliance($value)
- {
- if (!is_bool($value)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$value',
- 'was' => gettype($value),
- 'expected' => 'boolean',
- 'paramnum' => 1));
- }
- $this->_xhtmlCompliant = $value;
- }
-
- /**
- * Creates a new CSS definition group. Returns an integer identifying the group.
- *
- * @param string $selectors Selector(s) to be defined, comma delimited.
- * @param mixed $group (optional) Group identifier. If not passed,
- * will return an automatically assigned integer.
- *
- * @return mixed|PEAR_Error
- * @since 0.3.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT, HTML_CSS_ERROR_INVALID_GROUP
- * @see unsetGroup()
- */
- function createGroup($selectors, $group = null)
- {
- if (!is_string($selectors)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$selectors',
- 'was' => gettype($selectors),
- 'expected' => 'string',
- 'paramnum' => 1));
- }
-
- if (!isset($group)) {
- $this->_groupCount++;
- $group = $this->_groupCount;
- } else {
- if (isset($this->_groups['@-'.$group])){
- return $this->raiseError(HTML_CSS_ERROR_INVALID_GROUP, 'error',
- array('identifier' => $group));
- }
- }
-
- $groupIdent = '@-'.$group;
-
- $selectors = $this->parseSelectors($selectors, 1);
- foreach ($selectors as $selector) {
- $this->_alibis[$selector][] = $groupIdent;
- }
-
- $this->_groups[$groupIdent] = $selectors;
-
- return $group;
- }
-
- /**
- * Sets or adds a CSS definition for a CSS definition group
- *
- * @param mixed $group CSS definition group identifier
- *
- * @return void|PEAR_Error
- * @since 0.3.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT, HTML_CSS_ERROR_NO_GROUP
- * @see createGroup()
- */
- function unsetGroup($group)
- {
- if (!is_int($group) && !is_string($group)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$group',
- 'was' => gettype($group),
- 'expected' => 'integer | string',
- 'paramnum' => 1));
- }
- $groupIdent = '@-'.$group;
- if ($group < 0 || $group > $this->_groupCount ||
- !isset($this->_groups[$groupIdent])) {
- return $this->raiseError(HTML_CSS_ERROR_NO_GROUP, 'error',
- array('identifier' => $group));
- }
-
- $alibis = $this->_alibis;
- foreach ($alibis as $selector => $data) {
- foreach ($data as $key => $value) {
- if ($value == $groupIdent) {
- unset($this->_alibis[$selector][$key]);
- break;
- }
- }
- if (count($this->_alibis[$selector]) == 0) {
- unset($this->_alibis[$selector]);
- }
- }
- unset($this->_groups[$groupIdent]);
- unset($this->_css[$groupIdent]);
- }
-
- /**
- * Sets or adds a CSS definition for a CSS definition group
- *
- * @param mixed $group CSS definition group identifier
- * @param string $property Property defined
- * @param string $value Value assigned
- * @param bool $duplicates (optional) Allow or disallow duplicates.
- *
- * @return void|int|PEAR_Error Returns an integer if duplicates
- * are allowed.
- * @since 0.3.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT, HTML_CSS_ERROR_NO_GROUP
- * @see getGroupStyle()
- */
- function setGroupStyle($group, $property, $value, $duplicates = null)
- {
- if (!is_int($group) && !is_string($group)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$group',
- 'was' => gettype($group),
- 'expected' => 'integer | string',
- 'paramnum' => 1));
-
- } elseif (!is_string($property)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$property',
- 'was' => gettype($property),
- 'expected' => 'string',
- 'paramnum' => 2));
-
- } elseif (!is_string($value)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$value',
- 'was' => gettype($value),
- 'expected' => 'string',
- 'paramnum' => 3));
-
- } elseif (isset($duplicates) && !is_bool($duplicates)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$duplicates',
- 'was' => gettype($duplicates),
- 'expected' => 'bool',
- 'paramnum' => 4));
- }
-
- if (!isset($duplicates)) {
- $duplicates = $this->_allowDuplicates;
- }
-
- $groupIdent = '@-'.$group;
- if ($group < 0 || $group > $this->_groupCount ||
- !isset($this->_groups[$groupIdent])) {
- return $this->raiseError(HTML_CSS_ERROR_NO_GROUP, 'error',
- array('identifier' => $group));
- }
-
- if ($duplicates === true) {
- $this->_duplicateCounter++;
- $this->_css[$groupIdent][$this->_duplicateCounter][$property]= $value;
- return $this->_duplicateCounter;
- } else {
- $this->_css[$groupIdent][$property]= $value;
- }
- }
-
- /**
- * Returns a CSS definition for a CSS definition group
- *
- * @param mixed $group CSS definition group identifier
- * @param string $property Property defined
- *
- * @return mixed|PEAR_Error
- * @since 0.3.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT, HTML_CSS_ERROR_NO_GROUP,
- * HTML_CSS_ERROR_NO_ELEMENT
- * @see setGroupStyle()
- */
- function getGroupStyle($group, $property)
- {
- if (!is_int($group) && !is_string($group)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$group',
- 'was' => gettype($group),
- 'expected' => 'integer | string',
- 'paramnum' => 1));
-
- } elseif (!is_string($property)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$property',
- 'was' => gettype($property),
- 'expected' => 'string',
- 'paramnum' => 2));
- }
- $groupIdent = '@-'.$group;
- if ($group < 0 || $group > $this->_groupCount ||
- !isset($this->_groups[$groupIdent])) {
- return $this->raiseError(HTML_CSS_ERROR_NO_GROUP, 'error',
- array('identifier' => $group));
- }
-
- $styles = array();
-
- foreach ($this->_css[$groupIdent] as $rank => $prop) {
- // if the style is not duplicate
- if (!is_numeric($rank)) {
- $prop = array($rank => $prop);
- }
- foreach ($prop as $key => $value) {
- if ($key == $property) {
- $styles[] = $value;
- }
- }
- }
-
- if (count($styles) < 2) {
- $styles = array_shift($styles);
- }
- return $styles;
- }
-
- /**
- * Adds a selector to a CSS definition group.
- *
- * @param mixed $group CSS definition group identifier
- * @param string $selectors Selector(s) to be defined, comma delimited.
- *
- * @return void|PEAR_Error
- * @since 0.3.0
- * @access public
- * @throws HTML_CSS_ERROR_NO_GROUP, HTML_CSS_ERROR_INVALID_INPUT
- */
- function addGroupSelector($group, $selectors)
- {
- $groupIdent = '@-'.$group;
- if ($group < 0 || $group > $this->_groupCount ||
- !isset($this->_groups[$groupIdent])) {
- return $this->raiseError(HTML_CSS_ERROR_NO_GROUP, 'error',
- array('identifier' => $group));
-
- } elseif (!is_string($selectors)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$selectors',
- 'was' => gettype($selectors),
- 'expected' => 'string',
- 'paramnum' => 2));
- }
-
- $newSelectors = $this->parseSelectors($selectors, 1);
- foreach ($newSelectors as $selector) {
- $this->_alibis[$selector][] = $groupIdent;
- }
-
- $oldSelectors = $this->_groups[$groupIdent];
- $this->_groups[$groupIdent] = array_merge($oldSelectors, $newSelectors);
- }
-
- /**
- * Removes a selector from a group.
- *
- * @param mixed $group CSS definition group identifier
- * @param string $selectors Selector(s) to be removed, comma delimited.
- *
- * @return void|PEAR_Error
- * @since 0.3.0
- * @access public
- * @throws HTML_CSS_ERROR_NO_GROUP, HTML_CSS_ERROR_INVALID_INPUT
- */
- function removeGroupSelector($group, $selectors)
- {
- $groupIdent = '@-'.$group;
- if ($group < 0 || $group > $this->_groupCount ||
- !isset($this->_groups[$groupIdent])) {
- return $this->raiseError(HTML_CSS_ERROR_NO_GROUP, 'error',
- array('identifier' => $group));
-
- } elseif (!is_string($selectors)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$selectors',
- 'was' => gettype($selectors),
- 'expected' => 'string',
- 'paramnum' => 2));
- }
-
- $oldSelectors = $this->_groups[$groupIdent];
- $selectors = $this->parseSelectors($selectors, 1);
- foreach ($selectors as $selector) {
- foreach ($oldSelectors as $key => $value) {
- if ($value == $selector) {
- unset($this->_groups[$groupIdent][$key]);
- }
- }
- foreach ($this->_alibis[$selector] as $key => $value) {
- if ($value == $groupIdent) {
- unset($this->_alibis[$selector][$key]);
- }
- }
- }
- }
-
- /**
- * Sets or adds a CSS definition
- *
- * @param string $element Element (or class) to be defined
- * @param string $property Property defined
- * @param string $value Value assigned
- * @param bool $duplicates (optional) Allow or disallow duplicates.
- *
- * @return void|PEAR_Error
- * @since 0.2.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT
- * @see getStyle()
- */
- function setStyle($element, $property, $value, $duplicates = null)
- {
- if (!is_string($element)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$element',
- 'was' => gettype($element),
- 'expected' => 'string',
- 'paramnum' => 1));
-
- } elseif (!is_string($property)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$property',
- 'was' => gettype($property),
- 'expected' => 'string',
- 'paramnum' => 2));
-
- } elseif (!is_string($value)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$value',
- 'was' => gettype($value),
- 'expected' => 'string',
- 'paramnum' => 3));
-
- } elseif (strpos($element, ',')) {
- // Check if there are any groups.
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'error',
- array('var' => '$element',
- 'was' => $element,
- 'expected' => 'string without comma',
- 'paramnum' => 1));
-
- } elseif (isset($duplicates) && !is_bool($duplicates)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$duplicates',
- 'was' => gettype($duplicates),
- 'expected' => 'bool',
- 'paramnum' => 4));
- }
-
- if (!isset($duplicates)) {
- $duplicates = $this->_allowDuplicates;
- }
-
- $element = $this->parseSelectors($element);
-
- if ($duplicates === true) {
- $this->_duplicateCounter++;
- $this->_css[$element][$this->_duplicateCounter][$property]= $value;
- return $this->_duplicateCounter;
- } else {
- $this->_css[$element][$property]= $value;
- }
- }
-
- /**
- * Retrieves the value of a CSS property
- *
- * @param string $element Element (or class) to be defined
- * @param string $property Property defined
- *
- * @return mixed|PEAR_Error
- * @since 0.3.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT,
- * HTML_CSS_ERROR_NO_ELEMENT, HTML_CSS_ERROR_NO_ELEMENT_PROPERTY
- * @see setStyle()
- */
- function getStyle($element, $property)
- {
- if (!is_string($element)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$element',
- 'was' => gettype($element),
- 'expected' => 'string',
- 'paramnum' => 1));
-
- } elseif (!is_string($property)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$property',
- 'was' => gettype($property),
- 'expected' => 'string',
- 'paramnum' => 2));
- }
- if (!isset($this->_css[$element]) && !isset($this->_alibis[$element])) {
- return $this->raiseError(HTML_CSS_ERROR_NO_ELEMENT, 'error',
- array('identifier' => $element));
- }
-
- if (isset($this->_alibis[$element])) {
- $lastImplementation = array_keys($this->_alibis[$element]);
- $lastImplementation = array_pop($lastImplementation);
- $group = substr($this->_alibis[$element][$lastImplementation], 2);
- $property_value = $this->getGroupStyle($group, $property);
- }
- if (isset($this->_css[$element]) && !isset($property_value)) {
- $property_value = array();
- foreach ($this->_css[$element] as $rank => $prop) {
- if(!is_numeric($rank)) {
- $prop = array($rank => $prop);
- }
- foreach ($prop as $key => $value) {
- if ($key == $property) {
- $property_value[] = $value;
- }
- }
- }
- if (count($property_value) == 1) {
- $property_value = $property_value[0];
- } elseif (count($property_value) == 0) {
- unset($property_value);
- }
- }
-
- if (!isset($property_value)) {
- return $this->raiseError(HTML_CSS_ERROR_NO_ELEMENT_PROPERTY, 'error',
- array('identifier' => $element,
- 'property' => $property));
- }
- return $property_value;
- }
-
- /**
- * Return array entries of styles that match patterns (Perl compatible)
- *
- * @param string $elmPattern Element or class pattern to retrieve
- * @param string $proPattern (optional) Property pattern to retrieve
- *
- * @return array|PEAR_Error
- * @since 1.1.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT
- * @link http://www.php.net/en/ref.pcre.php
- * Regular Expression Functions (Perl-Compatible)
- */
- function grepStyle($elmPattern, $proPattern = null)
- {
- if (!is_string($elmPattern)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$elmPattern',
- 'was' => gettype($elmPattern),
- 'expected' => 'string',
- 'paramnum' => 1));
-
- } elseif (isset($proPattern) && !is_string($proPattern)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$proPattern',
- 'was' => gettype($proPattern),
- 'expected' => 'string',
- 'paramnum' => 2));
- }
-
- $styles = array();
-
- // first, search inside alibis
- $alibis = array_keys($this->_alibis);
- $alibis = preg_grep($elmPattern, $alibis);
- foreach ($alibis as $a) {
- foreach ($this->_alibis[$a] as $g) {
- if (isset($proPattern)) {
- $properties = array_keys($this->_css[$g]);
- $properties = preg_grep($proPattern, $properties);
- if (count($properties) == 0) {
- // this group does not have a such property pattern
- continue;
- }
- }
- if (isset($styles[$a])) {
- $styles[$a] = array_merge($styles[$a], $this->_css[$g]);
- } else {
- $styles[$a] = $this->_css[$g];
- }
- }
- }
-
- // second, search inside elements
- $elements = array_keys($this->_css);
- $elements = preg_grep($elmPattern, $elements);
- foreach ($elements as $e) {
- if (substr($e, 0, 1) == '@' ) {
- // excludes groups (already found with alibis)
- continue;
- }
- if (isset($proPattern)) {
- $properties = array_keys($this->_css[$e]);
- $properties = preg_grep($proPattern, $properties);
- if (count($properties) == 0) {
- // this element does not have a such property pattern
- continue;
- }
- }
- if (isset($styles[$e])) {
- $styles[$e] = array_merge($styles[$e], $this->_css[$e]);
- } else {
- $styles[$e] = $this->_css[$e];
- }
- }
- return $styles;
- }
-
- /**
- * Sets or changes the properties of new selectors to the values of an existing selector
- *
- * @param string $old Selector that is already defined
- * @param string $new New selector(s) that should share the same
- * definitions, separated by commas
- * @return void|PEAR_Error
- * @since 0.2.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT, HTML_CSS_ERROR_NO_ELEMENT
- */
- function setSameStyle($new, $old)
- {
- if (!is_string($new)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$new',
- 'was' => gettype($new),
- 'expected' => 'string',
- 'paramnum' => 1));
-
- } elseif (!is_string($old)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$old',
- 'was' => gettype($old),
- 'expected' => 'string',
- 'paramnum' => 2));
- }
-
- $old = $this->parseSelectors($old);
- if (!isset($this->_css[$old])) {
- return $this->raiseError(HTML_CSS_ERROR_NO_ELEMENT, 'error',
- array('identifier' => $old));
- }
-
- $selector = implode(', ', array($old, $new));
- $grp = $this->createGroup($selector, 'samestyleas_'.$old);
-
- $others = $this->parseSelectors($new, 1);
- foreach ($others as $other) {
- $other = trim($other);
- foreach ($this->_css[$old] as $rank => $property) {
- if (!is_numeric($rank)) {
- $property = array($rank => $property);
- }
- foreach ($property as $key => $value) {
- $this->setGroupStyle($grp, $key, $value);
- }
- }
- unset($this->_css[$old]);
- }
- }
-
- /**
- * Defines if the document should be cached by the browser. Defaults to false.
- *
- * @param bool $cache (optional)
- *
- * @return void|PEAR_Error
- * @since 0.2.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT
- */
- function setCache($cache = true)
- {
- if (!is_bool($cache)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$cache',
- 'was' => gettype($cache),
- 'expected' => 'boolean',
- 'paramnum' => 1));
- }
-
- $this->_cache = $cache;
- }
-
- /**
- * Defines the charset for the file. defaults to ISO-8859-1 because of CSS1
- * compatability issue for older browsers.
- *
- * @param string $type (optional) Charset encoding; defaults to ISO-8859-1.
- *
- * @return void|PEAR_Error
- * @since 0.2.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT
- * @see getCharset()
- */
- function setCharset($type = 'iso-8859-1')
- {
- if (!is_string($type)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$type',
- 'was' => gettype($type),
- 'expected' => 'string',
- 'paramnum' => 1));
- }
-
- $this->_charset = $type;
- }
-
- /**
- * Returns the charset encoding string
- *
- * @return string
- * @since 0.2.0
- * @access public
- * @see setCharset()
- */
- function getCharset()
- {
- return $this->_charset;
- }
-
- /**
- * Parse a textstring that contains css information
- *
- * @param string $str text string to parse
- * @param bool $duplicates (optional) Allows or disallows duplicate style definitions
- *
- * @return void|PEAR_Error
- * @since 0.3.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT
- * @see createGroup(), setGroupStyle(), setStyle()
- */
- function parseString($str, $duplicates = null)
- {
- if (!is_string($str)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$str',
- 'was' => gettype($str),
- 'expected' => 'string',
- 'paramnum' => 1));
-
- } elseif (isset($duplicates) && !is_bool($duplicates)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$duplicates',
- 'was' => gettype($duplicates),
- 'expected' => 'bool',
- 'paramnum' => 2));
- }
-
- if (!isset($duplicates)) {
- $duplicates = $this->_allowDuplicates;
- }
-
- // Remove comments
- $str = preg_replace("/\/\*(.*)?\*\//Usi", '', $str);
-
- // Protect parser vs IE hack
- $str = str_replace('"\"}\""', '#34#125#34', $str);
-
- // Parse each element of csscode
- $parts = explode("}",$str);
- foreach($parts as $part) {
- $part = trim($part);
- if (strlen($part) > 0) {
-
- // Parse each group of element in csscode
- list($keystr,$codestr) = explode("{",$part);
- $key_a = $this->parseSelectors($keystr, 1);
- $keystr = implode(', ', $key_a);
- // Check if there are any groups.
- if (strpos($keystr, ',')) {
- $group = $this->createGroup($keystr);
-
- // Parse each property of an element
- $codes = explode(";",trim($codestr));
- foreach ($codes as $code) {
- if (strlen(trim($code)) > 0) {
- // find the property and the value
- $property = trim(substr($code, 0 , strpos($code, ':', 0)));
- $value = trim(substr($code, strpos($code, ':', 0) + 1));
- // IE hack only
- if (strcasecmp($property, 'voice-family') == 0) {
- $value = str_replace('#34#125#34', '"\"}\""', $value);
- }
- $this->setGroupStyle($group, $property, $value, $duplicates);
- }
- }
- } else {
-
- // let's get on with regular definitions
- $key = trim($keystr);
- if (strlen($key) > 0) {
- // Parse each property of an element
- $codes = explode(";",trim($codestr));
- foreach ($codes as $code) {
- if (strlen(trim($code)) > 0) {
- $property = trim(substr($code, 0 , strpos($code, ':')));
- $value = substr($code, strpos($code, ':') + 1);
- // IE hack only
- if (strcasecmp($property, 'voice-family') == 0) {
- $value = str_replace('#34#125#34', '"\"}\""', $value);
- }
- $this->setStyle($key, $property, trim($value), $duplicates);
- }
- }
- }
- }
- }
- }
- }
-
- /**
- * Parse a file that contains CSS information
- *
- * @param string $filename file to parse
- * @param bool $duplicates (optional) Allow or disallow duplicates.
- *
- * @return void|PEAR_Error
- * @since 0.3.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT, HTML_CSS_ERROR_NO_FILE
- * @see parseString()
- */
- function parseFile($filename, $duplicates = null)
- {
- if (!is_string($filename)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$filename',
- 'was' => gettype($filename),
- 'expected' => 'string',
- 'paramnum' => 1));
-
- } elseif (!file_exists($filename)) {
- return $this->raiseError(HTML_CSS_ERROR_NO_FILE, 'error',
- array('identifier' => $filename));
-
- } elseif (isset($duplicates) && !is_bool($duplicates)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$duplicates',
- 'was' => gettype($duplicates),
- 'expected' => 'bool',
- 'paramnum' => 2));
- }
-
- if (!isset($duplicates)) {
- $duplicates = $this->_allowDuplicates;
- }
-
- if (function_exists('file_get_contents')){
- $this->parseString(file_get_contents($filename), $duplicates);
- } else {
- $file = fopen("$filename", "rb");
- $this->parseString(fread($file, filesize($filename)), $duplicates);
- fclose($file);
- }
- }
-
- /**
- * Parse data sources, file(s) or string(s), that contains CSS information
- *
- * @param array $styles data sources to parse
- * @param bool $duplicates (optional) Allow or disallow duplicates.
- *
- * @return void|PEAR_Error
- * @since 1.0.0RC2
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT
- * @see parseString(), parseFile()
- */
- function parseData($styles, $duplicates = null)
- {
- if (!is_array($styles)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$styles',
- 'was' => gettype($styles),
- 'expected' => 'array',
- 'paramnum' => 1));
-
- } elseif (isset($duplicates) && !is_bool($duplicates)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$duplicates',
- 'was' => gettype($duplicates),
- 'expected' => 'bool',
- 'paramnum' => 2));
- }
-
- if (!isset($duplicates)) {
- $duplicates = $this->_allowDuplicates;
- }
-
- foreach($styles as $style) {
- if (strcasecmp(substr($style, -4,4), '.css') == 0) {
- $res = $this->parseFile($style, $duplicates);
- } else {
- $res = $this->parseString($style, $duplicates);
- }
- if (!is_bool($this->_lastError)) {
- return $res;
- }
- }
- }
-
- /**
- * Returns the array of CSS properties
- *
- * @return array
- * @since 0.2.0
- * @access public
- */
- function toArray()
- {
- $css = array();
- foreach ($this->_css as $key => $value) {
- if (strpos($key, '@-') === 0) {
- $key = implode(', ', $this->_groups[$key]);
- }
- $css[$key] = $value;
- }
- return $css;
- }
-
- /**
- * Generates and returns the CSS properties of an element or class as a string for inline use.
- *
- * @param string $element Element or class for which inline CSS should be generated
- *
- * @return string|PEAR_Error
- * @since 0.2.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT
- */
- function toInline($element)
- {
- if (!is_string($element)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$element',
- 'was' => gettype($element),
- 'expected' => 'string',
- 'paramnum' => 1));
- }
-
- $strCss = '';
- $newCssArray = array();
-
- // This allows for grouped elements definitions to work
- if (isset($this->_alibis[$element])) {
- $alibis = $this->_alibis[$element];
-
- // All the groups must be run through to be able to
- // properly assign the value to the inline.
- foreach ($alibis as $alibi) {
- foreach ($this->_css[$alibi] as $key => $value) {
- $newCssArray[$key] = $value;
- }
- }
- }
-
- // This allows for single elements definitions to work
- if (isset($this->_css[$element])) {
- foreach ($this->_css[$element] as $rank => $property) {
- if (!is_numeric($rank)) {
- $property = array($rank => $property);
- }
- foreach ($property as $key => $value) {
- if ($key != 'other-elements') {
- $newCssArray[$key] = $value;
- }
- }
- }
- }
-
- foreach ($newCssArray as $key => $value) {
- $strCss .= $key . ':' . $value . ";";
- }
-
- return $strCss;
- }
-
- /**
- * Generates CSS and stores it in a file.
- *
- * @param string $filename Name of file that content the stylesheet
- *
- * @return void|PEAR_Error
- * @since 0.3.0
- * @access public
- * @throws HTML_CSS_ERROR_INVALID_INPUT, HTML_CSS_ERROR_WRITE_FILE
- * @see toString()
- */
- function toFile($filename)
- {
- if (!is_string($filename)) {
- return $this->raiseError(HTML_CSS_ERROR_INVALID_INPUT, 'exception',
- array('var' => '$filename',
- 'was' => gettype($filename),
- 'expected' => 'string',
- 'paramnum' => 1));
- }
-
- if (function_exists('file_put_contents')){
- file_put_contents($filename, $this->toString());
- } else {
- $file = fopen($filename,'wb');
- fwrite($file, $this->toString());
- fclose($file);
- }
- if (!file_exists($filename)){
- return $this->raiseError(HTML_CSS_ERROR_WRITE_FILE, 'error',
- array('filename' => $filename));
- }
- }
-
- /**
- * Generates and returns the complete CSS as a string.
- *
- * @return string
- * @since 0.2.0
- * @access public
- */
- function toString()
- {
- // get line endings
- $lnEnd = $this->_getLineEnd();
- $tabs = $this->_getTabs();
- $tab = $this->_getTab();
-
- // initialize $alibis
- $alibis = array();
-
- $strCss = '';
-
- // Allow a CSS comment
- if ($this->_comment) {
- $strCss = $tabs . '/* ' . $this->getComment() . ' */' . $lnEnd;
- }
-
- // If groups are to be output first, initialize a special variable
- if ($this->_groupsFirst) {
- $strCssElements = '';
- }
-
- // Iterate through the array and process each element
- foreach ($this->_css as $identifier => $rank) {
-
- // Groups are handled separately
- if (strpos($identifier, '@-') !== false) {
- // its a group
- $element = implode (', ', $this->_groups[$identifier]);
- } else {
- $element = $identifier;
- }
-
- // Start CSS element definition
- $definition = $element . ' {' . $lnEnd;
-
- // Iterate through the array of properties
- foreach ($rank as $pos => $property) {
- // check to see if it is a duplicate
- if (!is_numeric($pos)) {
- $property = array($pos => $property);
- unset($pos);
- }
- foreach ($property as $key => $value) {
- $definition .= $tabs . $tab . $key . ': ' . $value . ';' . $lnEnd;
- }
- }
-
- // end CSS element definition
- $definition .= $tabs . '}';
-
- // if this is to be on a single line, collapse
- if ($this->_singleLine) {
- $definition = $this->collapseInternalSpaces($definition);
- }
-
- // if groups are to be output first, elements must be placed in a
- // different string which will be appended in the end
- if ($this->_groupsFirst === true && strpos($identifier, '@-') === false) {
- // add to elements
- $strCssElements .= $lnEnd . $tabs . $definition . $lnEnd;
- } else {
- // add to strCss
- $strCss .= $lnEnd . $tabs . $definition . $lnEnd;
- }
- }
-
- if ($this->_groupsFirst) {
- $strCss .= $strCssElements;
- }
-
- if ($this->_singleLine) {
- $strCss = str_replace($lnEnd.$lnEnd, $lnEnd, $strCss);
- }
-
- $strCss = preg_replace('/^(\n|\r\n|\r)/', '', $strCss);
- return $strCss;
- }
-
- /**
- * Outputs the stylesheet to the browser.
- *
- * @return void
- * @since 0.2.0
- * @access public
- * @see toString()
- */
- function display()
- {
- if($this->_cache !== true) {
- header("Expires: Tue, 1 Jan 1980 12:00:00 GMT");
- header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
- header("Cache-Control: no-cache");
- header("Pragma: no-cache");
- }
-
- // set character encoding
- header("Content-Type: text/css; charset=" . $this->_charset);
-
- $strCss = $this->toString();
- print $strCss;
- }
-
- /**
- * Initialize Error engine preferences
- *
- * @param array $prefs (optional) hash of params to customize error generation
- * @return void
- * @since 0.3.3
- * @access private
- */
- function _initErrorStack($prefs = array())
- {
- // error message mapping callback
- if (isset($prefs['message_callback']) && is_callable($prefs['message_callback'])) {
- $this->_callback_message = $prefs['message_callback'];
- } else {
- $this->_callback_message = array('HTML_CSS_Error', '_msgCallback');
- }
-
- // error context mapping callback
- if (isset($prefs['context_callback']) && is_callable($prefs['context_callback'])) {
- $this->_callback_context = $prefs['context_callback'];
- } else {
- $this->_callback_context = array('HTML_CSS_Error', 'getBacktrace');
- }
-
- // determine whether to allow an error to be pushed or logged
- if (isset($prefs['push_callback']) && is_callable($prefs['push_callback'])) {
- $this->_callback_push = $prefs['push_callback'];
- } else {
- $this->_callback_push = array('HTML_CSS_Error', '_handleError');
- }
-
- // default error handler will use PEAR_Error
- if (isset($prefs['error_handler']) && is_callable($prefs['error_handler'])) {
- $this->_callback_errorhandler = $prefs['error_handler'];
- } else {
- $this->_callback_errorhandler = array(&$this, '_errorHandler');
- }
-
- // any handler-specific settings
- if (isset($prefs['handler'])) {
- $this->_errorhandler_options = $prefs['handler'];
- }
- }
-
- /**
- * Standard error handler that will use PEAR_Error object
- *
- * To improve performances, the PEAR.php file is included dynamically.
- * The file is so included only when an error is triggered. So, in most
- * cases, the file isn't included and perfs are much better.
- *
- * @param integer $code Error code.
- * @param string $level The error level of the message.
- * @param array $params Associative array of error parameters
- *
- * @return PEAR_Error
- * @since 1.0.0
- * @access private
- */
- function _errorHandler($code, $level, $params)
- {
- include_once 'HTML/CSS/Error.php';
-
- $mode = call_user_func($this->_callback_push, $code, $level);
-
- $message = call_user_func($this->_callback_message, $code, $params);
- $userinfo['level'] = $level;
-
- if (isset($this->_errorhandler_options['display'])) {
- $userinfo['display'] = $this->_errorhandler_options['display'];
- } else {
- $userinfo['display'] = array();
- }
- if (isset($this->_errorhandler_options['log'])) {
- $userinfo['log'] = $this->_errorhandler_options['log'];
- } else {
- $userinfo['log'] = array();
- }
-
- return PEAR::raiseError($message, $code, $mode, null, $userinfo, 'HTML_CSS_Error');
- }
-
- /**
- * A basic wrapper around the default PEAR_Error object
- *
- * @return object PEAR_Error when default error handler is used
- * @since 0.3.3
- * @access public
- * @see _errorHandler()
- */
- function raiseError()
- {
- $args = func_get_args();
- $this->_lastError = call_user_func_array($this->_callback_errorhandler, $args);
- return $this->_lastError;
- }
-
- /**
- * Determine whether there is an error
- *
- * @return boolean TRUE if error raised, FALSE otherwise
- * @since 1.0.0RC2
- * @access public
- */
- function isError()
- {
- $res = (!is_bool($this->_lastError));
- $this->_lastError = false;
- return $res;
- }
- }
- ?>