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648 lines
18 KiB
PHP
648 lines
18 KiB
PHP
<?php
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/*
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+-----------------------------------------------------------------------+
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| program/include/html.php |
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| This file is part of the RoundCube Webmail client |
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| Copyright (C) 2005-2008, RoundCube Dev, - Switzerland |
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| Licensed under the GNU GPL |
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| PURPOSE: |
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| Helper class to create valid XHTML code |
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+-----------------------------------------------------------------------+
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| Author: Thomas Bruederli <roundcube@gmail.com> |
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+-----------------------------------------------------------------------+
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$Id: $
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*/
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/**
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* Class for HTML code creation
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*
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* @package HTML
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*/
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class html
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{
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protected $tagname;
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protected $attrib = array();
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protected $allowed = array();
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protected $content;
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public static $common_attrib = array('id','class','style','title','align');
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public static $containers = array('iframe','div','span','p','h1','h2','h3','form','textarea','table','tr','th','td','style');
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public static $lc_tags = true;
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/**
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* Constructor
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*
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* @param array Hash array with tag attributes
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*/
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public function __construct($attrib = array())
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{
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if (is_array($attrib)) {
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$this->attrib = $attrib;
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}
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}
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/**
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* Return the tag code
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*
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* @return string The finally composed HTML tag
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*/
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public function show()
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{
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return self::tag($this->tagname, $this->attrib, $this->content, array_merge(self::$common_attrib, $this->allowed));
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}
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/****** STATIC METHODS *******/
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/**
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* Generic method to create a HTML tag
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*
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* @param string Tag name
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* @param array Tag attributes as key/value pairs
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* @param string Optinal Tag content (creates a container tag)
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* @param array List with allowed attributes, omit to allow all
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* @return string The XHTML tag
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*/
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public static function tag($tagname, $attrib = array(), $content = null, $allowed_attrib = null)
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{
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$inline_tags = array('a','span','img');
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$suffix = $attrib['nl'] || ($content && $attrib['nl'] !== false && !in_array($tagname, $inline_tags)) ? "\n" : '';
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$tagname = self::$lc_tags ? strtolower($tagname) : $tagname;
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if ($content || in_array($tagname, self::$containers)) {
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$templ = $attrib['noclose'] ? "<%s%s>%s" : "<%s%s>%s</%s>%s";
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unset($attrib['noclose']);
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return sprintf($templ, $tagname, self::attrib_string($attrib, $allowed_attrib), $content, $tagname, $suffix);
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}
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else {
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return sprintf("<%s%s />%s", $tagname, self::attrib_string($attrib, $allowed_attrib), $suffix);
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}
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}
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/**
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* Derrived method for <div> containers
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*
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* @param mixed Hash array with tag attributes or string with class name
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* @param string Div content
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* @return string HTML code
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* @see html::tag()
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*/
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public static function div($attr = null, $cont = null)
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{
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if (is_string($attr)) {
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$attr = array('class' => $attr);
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}
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return self::tag('div', $attr, $cont, array_merge(self::$common_attrib, array('onclick')));
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}
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/**
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* Derrived method for <p> blocks
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*
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* @param mixed Hash array with tag attributes or string with class name
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* @param string Paragraph content
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* @return string HTML code
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* @see html::tag()
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*/
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public static function p($attr = null, $cont = null)
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{
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if (is_string($attr)) {
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$attr = array('class' => $attr);
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}
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return self::tag('p', $attr, $cont, self::$common_attrib);
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}
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/**
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* Derrived method to create <img />
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*
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* @param mixed Hash array with tag attributes or string with image source (src)
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* @return string HTML code
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* @see html::tag()
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*/
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public static function img($attr = null)
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{
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if (is_string($attr)) {
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$attr = array('src' => $attr);
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}
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return self::tag('img', $attr + array('alt' => ''), null, array_merge(self::$common_attrib, array('src','alt','width','height','border','usemap')));
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}
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/**
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* Derrived method for link tags
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*
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* @param mixed Hash array with tag attributes or string with link location (href)
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* @param string Link content
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* @return string HTML code
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* @see html::tag()
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*/
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public static function a($attr, $cont)
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{
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if (is_string($attr)) {
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$attr = array('href' => $attr);
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}
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return self::tag('a', $attr, $cont, array_merge(self::$common_attrib, array('href','target','name','onclick','onmouseover','onmouseout','onmousedown','onmouseup')));
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}
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/**
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* Derrived method for inline span tags
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*
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* @param mixed Hash array with tag attributes or string with class name
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* @param string Tag content
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* @return string HTML code
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* @see html::tag()
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*/
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public static function span($attr, $cont)
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{
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if (is_string($attr)) {
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$attr = array('class' => $attr);
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}
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return self::tag('span', $attr, $cont, self::$common_attrib);
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}
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/**
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* Derrived method for form element labels
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*
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* @param mixed Hash array with tag attributes or string with 'for' attrib
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* @param string Tag content
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* @return string HTML code
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* @see html::tag()
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*/
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public static function label($attr, $cont)
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{
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if (is_string($attr)) {
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$attr = array('for' => $attr);
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}
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return self::tag('label', $attr, $cont, array_merge(self::$common_attrib, array('for')));
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}
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/**
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* Derrived method for line breaks
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*
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* @return string HTML code
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* @see html::tag()
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*/
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public static function br()
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{
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return self::tag('br');
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}
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/**
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* Create string with attributes
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*
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* @param array Associative arry with tag attributes
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* @param array List of allowed attributes
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* @return string Valid attribute string
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*/
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public static function attrib_string($attrib = array(), $allowed = null)
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{
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if (empty($attrib)) {
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return '';
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}
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$allowed_f = array_flip((array)$allowed);
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$attrib_arr = array();
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foreach ($attrib as $key => $value) {
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// skip size if not numeric
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if (($key=='size' && !is_numeric($value))) {
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continue;
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}
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// ignore "internal" or not allowed attributes
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if ($key == 'nl' || ($allowed && !isset($allowed_f[$key])) || $value === null) {
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continue;
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}
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// skip empty eventhandlers
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if (preg_match('/^on[a-z]+/', $key) && !$value) {
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continue;
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}
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// attributes with no value
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if (in_array($key, array('checked', 'multiple', 'disabled', 'selected'))) {
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if ($value) {
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$attrib_arr[] = sprintf('%s="%s"', $key, $key);
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}
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}
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else if ($key=='value') {
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$attrib_arr[] = sprintf('%s="%s"', $key, Q($value, 'strict', false));
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}
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else {
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$attrib_arr[] = sprintf('%s="%s"', $key, Q($value));
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}
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}
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return count($attrib_arr) ? ' '.implode(' ', $attrib_arr) : '';
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}
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}
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/**
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* Class to create an HTML input field
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*
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* @package HTML
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*/
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class html_inputfield extends html
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{
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protected $tagname = 'input';
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protected $type = 'text';
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protected $allowed = array('type','name','value','size','tabindex','autocomplete','checked','onchange','onclick','disabled','readonly','spellcheck','results');
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public function __construct($attrib = array())
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{
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if (is_array($attrib)) {
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$this->attrib = $attrib;
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}
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if ($attrib['type']) {
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$this->type = $attrib['type'];
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}
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if ($attrib['newline']) {
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$this->newline = true;
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}
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}
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/**
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* Compose input tag
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*
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* @param string Field value
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* @param array Additional attributes to override
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* @return string HTML output
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*/
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public function show($value = null, $attrib = null)
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{
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// overwrite object attributes
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if (is_array($attrib)) {
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$this->attrib = array_merge($this->attrib, $attrib);
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}
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// set value attribute
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if ($value !== null) {
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$this->attrib['value'] = $value;
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}
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// set type
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$this->attrib['type'] = $this->type;
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return parent::show();
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}
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}
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/**
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* Class to create an HTML password field
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*
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* @package HTML
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*/
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class html_passwordfield extends html_inputfield
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{
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protected $type = 'password';
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}
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/**
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* Class to create an hidden HTML input field
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*
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* @package HTML
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*/
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class html_hiddenfield extends html_inputfield
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{
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protected $type = 'hidden';
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protected $fields_arr = array();
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protected $newline = true;
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/**
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* Constructor
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*
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* @param array Named tag attributes
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*/
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public function __construct($attrib = null)
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{
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if (is_array($attrib)) {
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$this->add($attrib);
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}
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}
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/**
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* Add a hidden field to this instance
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*
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* @param array Named tag attributes
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*/
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public function add($attrib)
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{
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$this->fields_arr[] = $attrib;
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}
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/**
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* Create HTML code for the hidden fields
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*
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* @return string Final HTML code
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*/
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public function show()
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{
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$out = '';
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foreach ($this->fields_arr as $attrib) {
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$out .= self::tag($this->tagname, array('type' => $this->type) + $attrib);
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}
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return $out;
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}
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}
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/**
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* Class to create HTML radio buttons
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*
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* @package HTML
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*/
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class html_radiobutton extends html_inputfield
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{
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protected $type = 'radio';
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/**
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* Get HTML code for this object
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*
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* @param string Value of the checked field
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* @param array Additional attributes to override
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* @return string HTML output
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*/
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public function show($value = '', $attrib = null)
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{
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// overwrite object attributes
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if (is_array($attrib)) {
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$this->attrib = array_merge($this->attrib, $attrib);
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}
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// set value attribute
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$this->attrib['checked'] = ((string)$value == (string)$this->attrib['value']);
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return parent::show();
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}
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}
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/**
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* Class to create HTML checkboxes
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*
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* @package HTML
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*/
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class html_checkbox extends html_inputfield
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{
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protected $type = 'checkbox';
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/**
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* Get HTML code for this object
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*
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* @param string Value of the checked field
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* @param array Additional attributes to override
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* @return string HTML output
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*/
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public function show($value = '', $attrib = null)
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{
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// overwrite object attributes
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if (is_array($attrib)) {
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$this->attrib = array_merge($this->attrib, $attrib);
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}
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// set value attribute
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$this->attrib['checked'] = ((string)$value == (string)$this->attrib['value']);
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return parent::show();
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}
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}
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/**
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* Class to create an HTML textarea
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*
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* @package HTML
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*/
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class html_textarea extends html
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{
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protected $tagname = 'textarea';
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protected $allowed = array('name','rows','cols','wrap','tabindex','onchange','disabled','readonly','spellcheck');
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/**
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* Get HTML code for this object
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*
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* @param string Textbox value
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* @param array Additional attributes to override
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* @return string HTML output
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*/
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public function show($value = '', $attrib = null)
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{
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// overwrite object attributes
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if (is_array($attrib)) {
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$this->attrib = array_merge($this->attrib, $attrib);
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}
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// take value attribute as content
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if (empty($value) && !empty($this->attrib['value'])) {
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$value = $this->attrib['value'];
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}
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// make shure we don't print the value attribute
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if (isset($this->attrib['value'])) {
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unset($this->attrib['value']);
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}
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if (!empty($value) && !ereg('mce_editor', $this->attrib['class'])) {
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$value = Q($value, 'strict', false);
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}
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return self::tag($this->tagname, $this->attrib, $value, array_merge(self::$common_attrib, $this->allowed));
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}
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}
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/**
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* Builder for HTML drop-down menus
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* Syntax:<pre>
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* // create instance. arguments are used to set attributes of select-tag
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* $select = new html_select(array('name' => 'fieldname'));
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*
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* // add one option
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* $select->add('Switzerland', 'CH');
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*
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* // add multiple options
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* $select->add(array('Switzerland','Germany'), array('CH','DE'));
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*
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* // generate pulldown with selection 'Switzerland' and return html-code
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* // as second argument the same attributes available to instanciate can be used
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* print $select->show('CH');
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* </pre>
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*
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* @package HTML
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*/
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class html_select extends html
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{
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protected $tagname = 'select';
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protected $options = array();
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protected $allowed = array('name','size','tabindex','autocomplete','multiple','onchange','disabled');
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/**
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* Add a new option to this drop-down
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*
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* @param mixed Option name or array with option names
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* @param mixed Option value or array with option values
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*/
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public function add($names, $values = null)
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{
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if (is_array($names)) {
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foreach ($names as $i => $text) {
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$this->options[] = array('text' => $text, 'value' => $values[$i]);
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}
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}
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else {
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$this->options[] = array('text' => $names, 'value' => $values);
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}
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}
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/**
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* Get HTML code for this object
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*
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* @param string Value of the selection option
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* @param array Additional attributes to override
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* @return string HTML output
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*/
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public function show($select = array(), $attrib = null)
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{
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// overwrite object attributes
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if (is_array($attrib)) {
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$this->attrib = array_merge($this->attrib, $attrib);
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}
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$this->content = "\n";
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$select = (array)$select;
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foreach ($this->options as $option) {
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$attr = array(
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'value' => $option['value'],
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'selected' => (in_array($option['value'], $select, true) ||
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in_array($option['text'], $select, true)) ? 1 : null);
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$this->content .= self::tag('option', $attr, Q($option['text']));
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}
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return parent::show();
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}
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}
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/**
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* Class to build an HTML table
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*
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* @package HTML
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*/
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class html_table extends html
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{
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protected $tagname = 'table';
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protected $allowed = array('id','class','style','width','summary','cellpadding','cellspacing','border');
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private $header = array();
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private $rows = array();
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private $rowindex = 0;
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private $colindex = 0;
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public function __construct($attrib = array())
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{
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$this->attrib = array_merge($attrib, array('summary' => '', 'border' => 0));
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}
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/**
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* Add a table cell
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*
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* @param array Cell attributes
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* @param string Cell content
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*/
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public function add($attr, $cont)
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{
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if (is_string($attr)) {
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$attr = array('class' => $attr);
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}
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$cell = new stdClass;
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$cell->attrib = $attr;
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$cell->content = $cont;
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$this->rows[$this->rowindex]->cells[$this->colindex] = $cell;
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$this->colindex++;
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if ($this->attrib['cols'] && $this->colindex == $this->attrib['cols']) {
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$this->add_row();
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}
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}
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/**
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* Add a table header cell
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*
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* @param array Cell attributes
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* @param string Cell content
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*/
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public function add_header($attr, $cont)
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{
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if (is_string($attr))
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$attr = array('class' => $attr);
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|
$cell = new stdClass;
|
|
$cell->attrib = $attr;
|
|
$cell->content = $cont;
|
|
$this->header[] = $cell;
|
|
}
|
|
|
|
/**
|
|
* Jump to next row
|
|
*
|
|
* @param array Row attributes
|
|
*/
|
|
public function add_row($attr = array())
|
|
{
|
|
$this->rowindex++;
|
|
$this->colindex = 0;
|
|
$this->rows[$this->rowindex] = new stdClass;
|
|
$this->rows[$this->rowindex]->attrib = $attr;
|
|
$this->rows[$this->rowindex]->cells = array();
|
|
}
|
|
|
|
|
|
/**
|
|
* Build HTML output of the table data
|
|
*
|
|
* @param array Table attributes
|
|
* @return string The final table HTML code
|
|
*/
|
|
public function show($attrib = null)
|
|
{
|
|
if (is_array($attrib))
|
|
$this->attrib = array_merge($this->attrib, $attrib);
|
|
|
|
$thead = $tbody = "";
|
|
|
|
// include <thead>
|
|
if (!empty($this->header)) {
|
|
$rowcontent = '';
|
|
foreach ($this->header as $c => $col) {
|
|
$rowcontent .= self::tag('td', $col->attrib, $col->content);
|
|
}
|
|
$thead = self::tag('thead', null, self::tag('tr', null, $rowcontent));
|
|
}
|
|
|
|
foreach ($this->rows as $r => $row) {
|
|
$rowcontent = '';
|
|
foreach ($row->cells as $c => $col) {
|
|
$rowcontent .= self::tag('td', $col->attrib, $col->content);
|
|
}
|
|
|
|
if ($r < $this->rowindex || count($row->cells)) {
|
|
$tbody .= self::tag('tr', $row->attrib, $rowcontent);
|
|
}
|
|
}
|
|
|
|
if ($this->attrib['rowsonly']) {
|
|
return $tbody;
|
|
}
|
|
|
|
// add <tbody>
|
|
$this->content = $thead . self::tag('tbody', null, $tbody);
|
|
|
|
unset($this->attrib['cols'], $this->attrib['rowsonly']);
|
|
return parent::show();
|
|
}
|
|
}
|
|
|
|
?>
|