css.php
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PHP
347 行
<?php/* vim: set expandtab tabstop=4 shiftwidth=4: */// +----------------------------------------------------------------------+// | PHP Version 4 |// +----------------------------------------------------------------------+// | Copyright (c) 1997 - 2003 The PHP Group |// +----------------------------------------------------------------------+// | This source file is subject to version 2.0 of the PHP license, |// | that is bundled with this package in the file LICENSE, and is |// | available at through the world-wide-web at |// | http://www.php.net/license/2_02.txt. |// | If you did not receive a copy of the PHP license and are unable to |// | obtain it through the world-wide-web, please send a note to |// | license@php.net so we can mail you a copy immediately. |// +----------------------------------------------------------------------+// | Author: Klaus Guenther <klaus@capitalfocus.org> |// +----------------------------------------------------------------------+//// $Id: CSS.php,v 1.1 2003/07/31 14:58:18 thesaur Exp $require_once "HTML/Common.php";/** * Base class for CSS definitions * * This class handles the details for creating properly constructed CSS declarations. * * Example for direct output of stylesheet: * <code> * require_once 'HTML/CSS.php'; * * $css = new HTML_CSS(); * * // define styles * $css->setStyle('body', 'background-color', '#0c0c0c'); * $css->setStyle('body', 'color', '#ffffff'); * $css->setStyle('h1', 'text-align', 'center'); * $css->setStyle('h1', 'font', '16pt helvetica, arial, sans-serif'); * $css->setStyle('p', 'font', '12pt helvetica, arial, sans-serif'); * * // output the stylesheet directly to browser * $css->display(); * </code> * * Example in combination with HTML_Page: * <code> * require_once 'HTML/Page.php'; * require_once 'HTML/CSS.php'; * * $css = new HTML_CSS(); * $css->setStyle('body', 'background-color', '#0c0c0c'); * $css->setStyle('body', 'color', '#ffffff'); * $css->setStyle('h1', 'text-align', 'center'); * $css->setStyle('h1', 'font', '16pt helvetica, arial, sans-serif'); * $css->setStyle('p', 'font', '12pt helvetica, arial, sans-serif'); * * $p = new HTML_Page(); * * $p->setTitle("My page"); * // it can be added as an object * $p->addStyleDeclaration('text/css', &$css); * $p->addMetaData("author", "My Name"); * $p->addBodyContent = "<h1>headline</h1>"; * $p->addBodyContent = "<p>some text</p>"; * $p->addBodyContent = "<p>some more text</p>"; * $p->addBodyContent = "<p>yet even more text</p>"; * $p->display(); * </code> * * Example for generating inline code: * <code> * require_once 'HTML/CSS.php'; * * $css = new HTML_CSS(); * * $css->setStyle('body', 'background-color', '#0c0c0c'); * $css->setStyle('body', 'color', '#ffffff'); * $css->setStyle('h1', 'text-align', 'center'); * $css->setStyle('h1', 'font', '16pt helvetica, arial, sans-serif'); * $css->setStyle('p', 'font', '12pt helvetica, arial, sans-serif'); * $css->setSameStyle('body', 'p'); * * echo '<body style="' . $css->toInline('body') . '">'; * // will output: * // <body style="font:12pt helvetica, arial, sans-serif;background-color:#0c0c0c;color:#ffffff;"> * </code> * * @author Klaus Guenther <klaus@capitalfocus.org> * @version 0.1.0 */class HTML_CSS extends HTML_Common { /** * Contains the content of the <body> tag. * * @var array * @access private */ var $_css = array('body'=>array( 'background-color'=>'#ffffff' )); /** * Contains "alibis" (other elements that share a definition) of an element defined in CSS * * @var array * @access private */ var $_alibis = array(); /** * Controls caching of the page * * @var bool * @access private */ var $_cache = true; /** * Contains the character encoding string * * @var string * @access private */ var $_charset = 'iso-8859-1'; /** * Class constructor * * @access public */ function HTML_CSS() { $commonVersion = 1.7; if (HTML_Common::apiVersion() < $commonVersion) { return PEAR::raiseError("HTML_CSS version " . $this->apiVersion() . " requires " . "HTML_Common version 1.2 or greater.", 0, PEAR_ERROR_TRIGGER); } } /** * Returns the current API version * * @access public * @returns double */ function apiVersion() { return 0.1; } // end func apiVersion /** * Sets or adds a CSS definition * * @param string $element Element (or class) to be defined * @param string $property Property defined * @param string $value Value assigned * @access public */ function setStyle ($element, $property, $value) { $this->_css[$element][$property]= $value; } // end func setStyle /** * Sets or adds a CSS definition * * @param string $element Element (or class) to be defined * @param string $others Other elements that share the definitions, separated by commas * @access public */ function setSameStyle ($others, $element) { $others = explode(',', $others); foreach ($others as $other) { $other = trim($other); $this->_css[$element]['other-elements'][] = $other; $this->_alibis[$other][] = $element; } } // end func setSameStyle /** * Defines if the document should be cached by the browser. Defaults to false. * * @param string $cache Options are currently 'true' or 'false'. Defaults to 'true'. * @access public */ function setCache($cache = 'true') { if ($cache == 'true'){ $this->_cache = true; } else { $this->_cache = false; } } // end func setCache /** * Defines the charset for the file. defaults to ISO-8859-1 because of CSS1 * compatability issue for older browsers. * * @param string $type Charset encoding; defaults to ISO-8859-1. * @access public */ function setCharset($type = 'iso-8859-1') { $this->_charset = $type; } // end func setCharset /** * Returns the charset encoding string * * @access public */ function getCharset() { return $this->_charset; } // end func getCharset /** * Generates and returns the array of CSS properties * * @return array * @access public */ function toArray() { return $this->_css; } // end func toArray /** * Generates and returns the CSS properties of an element or class as a string for inline use. * * @param string $element Element or class for which inline CSS should be generated * @return string * @access public */ function toInline($element) { $strCss = ''; $newCssArray = ''; // Iterate through the array of properties for the supplied element // This allows for grouped elements definitions to work if ($this->_alibis[$element]) { $alibis = $this->_alibis[$element]; foreach ($alibis as $int => $newElement) { foreach ($this->_css[$newElement] as $key => $value) { if ($key != 'other-elements') { $newCssArray[$key] = $value; } } } } // The reason this comes second is because if something is defined twice, // the value specifically assigned to this element should override // values inherited from other element definitions if ($this->_css[$element]) { foreach ($this->_css[$element] as $key => $value) { if ($key != 'other-elements') { $newCssArray[$key] = $value; } } } foreach ($newCssArray as $key => $value) { $strCss .= $key . ':' . $value . ";"; } // Let's roll! return $strCss; } // end func toInline /** * Generates and returns the complete CSS as a string. * * @return string * @access public */ function toString() { // get line endings $lnEnd = $this->_getLineEnd(); $tabs = $this->_getTabs(); $tab = $this->_getTab(); $strCss = ''; // Allow a CSS comment if ($this->_comment) { $strCss = $tabs . '/* ' . $this->getComment() . ' */' . $lnEnd; } // Iterate through the array and process each element foreach ($this->_css as $element => $property) { $strCss .= $lnEnd; $alibis = ''; if (isset($property['other-elements']) && is_array($property['other-elements'])){ foreach ($property['other-elements'] as $int => $other) { $alibis .= "$other, "; } } //start CSS element definition $strCss .= $tabs . $alibis . $element . ' {' . $lnEnd; foreach ($property as $key => $value) { if ($key != 'other-elements') { $strCss .= $tabs . $tab . $key . ': ' . $value . ';' . $lnEnd; } } // end CSS element definition $strCss .= $tabs . '}' . $lnEnd; } // Let's roll! return $strCss; } // end func toString /** * Outputs the stylesheet to the browser. * * @access public */ function display() { $lnEnd = $this->_getLineEnd(); if(! $this->_cache) { 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; } // end func display }?>⌨️ 快捷键说明
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