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<?php
/**
* Box Plugin: Draw highlighting boxes around wiki markup
*
* Syntax: <box width% classes|title>
* width% width of the box, must use % unit
* classes one or more classes used to style the box, several predefined styles included in style.css
* title (optional) all text after '|' will be rendered above the main code text with a
* different style.
*
* Acknowledgements:
* Rounded corners based on snazzy borders by Stu Nicholls (http://www.cssplay.co.uk/boxes/snazzy)
* which is in turn based on nifty corners by Alessandro Fulciniti (http://pro.html.it/esempio/nifty/)
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Christopher Smith <chris@jalakai.co.uk>
*/
if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/');
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'syntax.php');
/**
* All DokuWiki plugins to extend the parser/rendering mechanism
* need to inherit from this class
*/
class syntax_plugin_box extends DokuWiki_Syntax_Plugin {
var $title_mode = false;
// the following are used in rendering and are set by _xhtml_boxopen()
var $_xb_colours = '';
var $_content_colours = '';
var $_title_colours = '';
/**
* return some info
*/
function getInfo(){
return array(
'author' => 'Christopher Smith',
'email' => 'chris@jalakai.co.uk',
'date' => '2008-11-11',
'name' => 'Box Plugin',
'desc' => 'Boxes with titles, colour and rounded corners.
Syntax: <box width class colours|title> ... </box|caption>
width, class, colours title & caption are optional.
The title can include some wiki markup, the box
contents can include almost any wiki markup.',
'url' => 'http://www.dokuwiki.org/plugin:boxes',
);
}
function getType(){ return 'protected';}
function getAllowedTypes() { return array('container','substition','protected','disabled','formatting','paragraphs'); }
function getPType(){ return 'block';}
// must return a number lower than returned by native 'code' mode (200)
function getSort(){ return 195; }
// override default accepts() method to allow nesting
// - ie, to get the plugin accepts its own entry syntax
function accepts($mode) {
if ($mode == substr(get_class($this), 7)) return true;
return parent::accepts($mode);
}
/**
* Connect pattern to lexer
*/
function connectTo($mode) {
$this->Lexer->addEntryPattern('<box>(?=.*?</box.*?>)',$mode,'plugin_box');
$this->Lexer->addEntryPattern('<box\s[^\r\n\|]*?>(?=.*?</box.*?>)',$mode,'plugin_box');
$this->Lexer->addEntryPattern('<box\|(?=[^\r\n]*?\>.*?</box.*?\>)',$mode,'plugin_box');
$this->Lexer->addEntryPattern('<box\s[^\r\n\|]*?\|(?=[^\r\n]*?>.*?</box.*?>)',$mode,'plugin_box');
}
function postConnect() {
$this->Lexer->addPattern('>', 'plugin_box');
$this->Lexer->addExitPattern('</box.*?>', 'plugin_box');
}
/**
* Handle the match
*/
function handle($match, $state, $pos, &$handler){
switch ($state) {
case DOKU_LEXER_ENTER:
$data = $this->_boxstyle(trim(substr($match, 4, -1)));
if (substr($match, -1) == '|') {
$this->title_mode = true;
return array('title_open',$data);
} else {
return array('box_open',$data);
}
case DOKU_LEXER_MATCHED:
if ($this->title_mode) {
$this->title_mode = false;
return array('box_open','');
} else {
return array('data', $match);
}
case DOKU_LEXER_UNMATCHED:
$handler->_addCall('cdata',array($match), $pos);
return false;
case DOKU_LEXER_EXIT:
$data = trim(substr($match, 5, -1));
$title = ($data && $data{0} == "|") ? substr($data,1) : '';
return array('box_close', $title);
}
return false;
}
/**
* Create output
*/
function render($mode, &$renderer, $indata) {
if (empty($indata)) return false;
list($instr, $data) = $indata;
if($mode == 'xhtml'){
switch ($instr) {
case 'title_open' :
$this->title_mode = true;
$renderer->doc .= $this->_xhtml_boxopen($data)."<p class='box_title'{$this->_title_colours}>";
break;
case 'box_open' :
if ($this->title_mode) {
$this->title_mode = false;
$renderer->doc .= "</p>\n<div class='box_content'{$this->_content_colours}>";
} else {
$renderer->doc .= $this->_xhtml_boxopen($data)."<div class='box_content'{$this->_content_colours}>";
}
break;
case 'data' :
$renderer->doc .= $renderer->_xmlEntities($data);
break;
case 'box_close' :
$renderer->doc .= "</div>\n";
if ($data) {
$renderer->doc .= "<p class='box_caption'{$this->_title_colours}>".$renderer->_xmlEntities($data)."</p>\n";
}
$renderer->doc .= $this->_xhtml_boxclose();
break;
}
return true;
}
return false;
}
function _boxstyle($str) {
if (!strlen($str)) return array();
$styles = array();
$tokens = preg_split('/\s+/', $str, 9); // limit is defensive
foreach ($tokens as $token) {
if (preg_match('/^\d*\.?\d+(%|px|em|ex|pt|cm|mm|pi|in)$/', $token)) {
$styles['width'] = $token;
continue;
}
if (preg_match('/^(
(\#([0-9a-fA-F]{3}|[0-9a-fA-F]{6}))| #colorvalue
(rgb\(([0-9]{1,3}%?,){2}[0-9]{1,3}%?\)) #rgb triplet
)$/x', $token)) {
$styles['colour'][] = $token;
continue;
}
// restrict token (class names) characters to prevent any malicious data
if (preg_match('/[^A-Za-z0-9_-]/',$token)) continue;
$styles['class'] = (isset($styles['class']) ? $styles['class'].' ' : '').$token;
}
if (!empty($styles['colour'])) {
$styles['colour'] = $this->_box_colours($styles['colour']);
}
return $styles;
}
function _box_colours($colours) {
$triplets = array();
// only need the first four colours
if (count($colours) > 4) $colours = array_slice($colours,0,4);
foreach ($colours as $colour) {
$triplet[] = $this->_colourToTriplet($colour);
}
// there must be one colour to get here - the primary background
// calculate title background colour if not present
if (empty($triplet[1])) {
$triplet[1] = $triplet[0];
}
// calculate outer background colour if not present
if (empty($triplet[2])) {
$triplet[2] = $triplet[0];
}
// calculate border colour if not present
if (empty($triplet[3])) {
$triplet[3] = $triplet[0];
}
// convert triplets back to style sheet colours
$style_colours['content_background'] = 'rgb('.join(',',$triplet[0]).')';
$style_colours['title_background'] = 'rgb('.join(',',$triplet[1]).')';
$style_colours['outer_background'] = 'rgb('.join(',',$triplet[2]).')';
$style_colours['borders'] = 'rgb('.join(',',$triplet[3]).')';
return $style_colours;
}
function _colourToTriplet($colour) {
if ($colour{0} == '#') {
if (strlen($colour) == 4) {
// format #FFF
return array(hexdec($colour{1}.$colour{1}),hexdec($colour{2}.$colour{2}),hexdec($colour{3}.$colour{3}));
} else {
// format #FFFFFF
return array(hexdec(substr($colour,1,2)),hexdec(substr($colour,3,2)), hexdec(substr($colour,5,2)));
}
} else {
// format rgb(x,y,z)
return explode(',',substr($colour,4,-1));
}
}
function _xhtml_boxopen($styles) {
$class = 'class="box' . (isset($styles['class']) ? ' '.$styles['class'] : '') . '"';
$style = isset($styles['width']) ? "width: {$styles['width']};" : '';
if (isset($styles['colour'])) {
$colours = 'background-color: '.$styles['colour']['outer_background'].'; ';
$colours .= 'border-color: '.$styles['colour']['borders'].';';
$this->_content_colours = 'style="background-color: '.$styles['colour']['content_background'].'; border-color: '.$styles['colour']['borders'].'"';
$this->_title_colours = 'style="background-color: '.$styles['colour']['title_background'].';"';
} else {
$colours = '';
$this->_content_colours = '';
$this->_title_colours = '';
}
if ($style || $colours) $style = ' style="'.$style.' '.$colours.'"';
if ($colours) $colours = ' style="'.$colours.'"';
$this->_xb_colours = $colours;
$html = "<div $class$style>\n";
$html .=" <b class='xtop'><b class='xb1'$colours></b><b class='xb2'$colours></b><b class='xb3'$colours></b><b class='xb4'$colours></b></b>\n";
$html .=" <div class='xbox'$colours>\n";
return $html;
}
function _xhtml_boxclose() {
$colours = $this->_xb_colours;
$html = " </div>\n";
$html .= " <b class='xbottom'><b class='xb4'$colours></b><b class='xb3'$colours></b><b class='xb2'$colours></b><b class='xb1'$colours></b></b>\n";
$html .= "</div>\n";
return $html;
}
}
//Setup VIM: ex: et ts=4 enc=utf-8 :
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