<?php 
/**
 * Xinha Dialog Module Specialchar
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @license PHP License
 * @package WB
 * @subpackage base
 */

WBClass::load('WBXinha_Dialog');

/**
 * Xinha Dialog Module Specialchar
 * 
 * 
 *
 * @version 0.1.0
 * @package WB
 * @subpackage base
 */
class WBXinha_Dialog_Specialchar extends WBXinha_Dialog
{
    /**
     * list of greek character
     * @var array
     */
    protected $charGreek   =   array(
                                        'alpha',
                                        'beta',
                                        'gamma',
                                        'delta',
                                        'epsilon',
                                        'zeta',
                                        'eta',
                                        'theta',
                                        'iota',
                                        'kappa',
                                        'lambda',
                                        'mu',
                                        'nu',
                                        'xi',
                                        'omicron',
                                        'pi',
                                        'rho',
                                        'sigma',
                                        'tau',
                                        'upsilon',
                                        'phi',
                                        'chi',
                                        'psi',
                                        'omega',
                                        'Alpha',
                                        'Beta',
                                        'Gamma',
                                        'Delta',
                                        'Epsilon',
                                        'Zeta',
                                        'Eta',
                                        'Theta',
                                        'Iota',
                                        'Kappa',
                                        'Lambda',
                                        'Mu',
                                        'Nu',
                                        'Xi',
                                        'Omicron',
                                        'Pi',
                                        'Rho',
                                        'Sigma',
                                        'Tau',
                                        'Upsilon',
                                        'Phi',
                                        'Chi',
                                        'Psi',
                                        'Omega'
    
                                    );
    /**
     * Math symbols
     * @var array
     */
    protected $charMath = array(
                                'laquo',
                                'raquo',
                                'lang',
                                'rang',
                                'loz',
                                'fnof',
                                'int',
                                'le',
                                'ge',
                                'lt',
                                'gt',
                                'ne',
                                'equiv',
                                'asymp',
                                'weierp',
                                'image',
                                'real',
                                'cap',
                                'cup',
                                'sub',
                                'sup',       
                                'nsub',
                                'sube',
                                'supe',       
                                'oplus',
                                'otimes',
                                'and',
                                'or',       
                                'perp',
                                'ang',
                                'lceil',       
                                'rceil',       
                                'lfloor',       
                                'rfloor',       
                                'alefsym',
                                'infin',
                                'prop',
                                'radic', 
                                'middot',
                                'plusmn',
                                'bull',
                                'sdot',
                                'frac14',
                                'frac12',
                                'frac34',
                                'not',
                                'tilde',
                                'ndash',
                                'mdash',
                                'hellip',
                                'dagger',
                                'Dagger',
                                '#x1e40',
                                '#x1e41'
                                );
    /**
     * common symbols
     * @var array
     */
    protected $charCommon = array(
                                'spades',
                                'clubs',
                                'hearts',
                                'diams',
                                'Oslash',
                                'oslash',
                                'larr',
                                'rarr',
                                'darr',
                                'harr',
                                'lArr',
                                'rArr',
                                'dArr',
                                'hArr',
                                'crarr',  
                                'prime',
                                'Prime',
                                'copy',
                                'trade',
                                'reg',
                                'deg',
                                'para',
                                'quot',
                                'lsquo',
                                'rsquo',
                                'ldquo',
                                'rdquo',
                                'raquo',
                                'cent',
                                'pound',
                                'curren',
                                'yen',
                                'euro',
                                'permil',
                                'aelig',
                                'AElig',
                                'oelig',
                                'OElig'
                                );
                                
    /**
     * combination characters
     * @var array
     */
    protected $charCombining = array();

    /**
     * Run dialog
     * 
     * @param bool $submit
     * @return bool whehther dialog was successful and may be closed
     */
    public function run($submit = true)
    {
        if ($submit && $this->onSubmit()) {
            return true;
        }
        
        $this->makeCharCombination();
        
        $this->loadTemplates('list');
        $this->tmpl->addVar('greek_list_entry', 'value', $this->charGreek);
        $this->tmpl->addVar('math_list_entry', 'value', $this->charMath);
        $this->tmpl->addVar('common_list_entry', 'value', $this->charCommon);
        $this->tmpl->addVar('combining_list_entry', 'value', $this->charCombining);        
        return false;
    }

    /**
     * select proper value on submit
     * 
     * Prepare to-be-inserted HTML snippet, or return false when
     * selection was not successful
     * 
     * @return bool sucess 
     */
    protected function onSubmit()
    {
        $this->makeCharCombination();
        
        $this->insert   =   '';
        $char   =   $this->req->get('char');
        $all    =   array_merge($this->charGreek, $this->charMath, $this->charCommon, $this->charCombining);
        if (!in_array($char, $all)) {
            return false;
        }

        $this->loadTemplates('insert');
        $this->tmpl->addGlobalVar('value', '&'. $char . ';');
        $this->insert   =   $this->tmpl->getParsedTemplate('snippet');
        return true;
    }
    
    /**
     * create list of combination chars
     * 
     * http://www.fileformat.info/info/unicode/block/combining_diacritical_marks/index.htm
     */
    private function makeCharCombination()
    {
         if (!empty($this->charCombining) || empty($this->select)) {
             return;
         }
        $comb   =   range(0x300, 0x36f);
        foreach ($comb as $c) {
            $this->charCombining[]  =   '#'. $c;
        }
    }
}
?>