source: plugins/widgetExternalSearch/_widgets.php @ 3382

<?php 
# ***** BEGIN LICENSE BLOCK *****
#
# This file is part of External Search, a plugin for Dotclear 2
# Copyright (C) 2009 Moe (http://gniark.net/)
#
# External Search is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License v2.0
# as published by the Free Software Foundation.
#
# External Search is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# ***** END LICENSE BLOCK *****

if (!defined('DC_RC_PATH')) {return;}

$core->addBehavior('initWidgets',array('externalSearchWidget',
     'initWidgets'));

/**
@ingroup External Search
@brief Widget
*/
class externalSearchWidget
{
     /**
     widget
     @param    w    <b>object</b>  Widget
     */
     public static function initWidgets($w)
     {
          $w->create('externalSearchWidget',__('External search engine'),
               array('externalSearchWidget','show'),
               null,
               __('External search engine form'));
          
          $w->externalSearchWidget->setting('title',__('Title (optional)').' :',__('Search'));
          
          $w->externalSearchWidget->setting('engine',__('Search engine:'),
               null,'combo',array(
                    'Bing' => 'bing',
                    'Google' => 'google',
                    'Yahoo!' => 'yahoo',
                    )
               );
          $w->externalSearchWidget->setting('homeonly',__('Display on:'),0,'combo',
               array(
                    __('All pages') => 0,
                    __('Home page only') => 1,
                    __('Except on home page') => 2
                    )
          );
    $w->externalSearchWidget->setting('content_only',__('Content only'),0,'check');
    $w->externalSearchWidget->setting('class',__('CSS class:'),'');
          $w->externalSearchWidget->setting('offline',__('Offline'),0,'check');
     }
     
     /**
     show widget
     @param    w    <b>object</b>  Widget
     @return   <b>string</b> XHTML
     */
     public static function show($w)
     {
          global $core;

          if ($w->offline)
               return;

          if (($w->homeonly == 1 && $core->url->type != 'default') ||
               ($w->homeonly == 2 && $core->url->type == 'default')) {
               return;
          }
                    
          $url = preg_replace('/^(http([s]*)\:\/\/)/i','',
               $core->blog->url);
          
          switch($w->engine)
          {
               case 'bing' :
                    # add site:http://example.com/ to bing search
                    $form =
                         '<form method="post" action="'.$core->blog->url.
                              $core->url->getBase('externalSearch').'">'.
                         '<p><input type="text" size="10" maxlength="255" name="q" />'.
                         form::hidden(array('engine'),$w->engine).
                         ' <input class="submit" type="submit" value="ok" /></p>'.
                    '</form>';
                    break;
               case 'google' :
                    $form =
                         '<form method="get" action="https://www.google.com/search">'.
                         '<p><input type="text" size="10" maxlength="255" '.
                         'name="q" />'.
                         form::hidden(array('domains'),$url).
                         form::hidden(array('sitesearch'),$url).
                         ' <input class="submit" type="submit" value="ok" /></p>'.
                         '</form>';
                    break;
               case 'yahoo' :
                    $form =
                         '<form method="get" action="http://search.yahoo.com/search">'.
                         '<p><input type="text" size="10" maxlength="255" '.
                         'name="p" />'.
                         form::hidden(array('vs'),$url).
                         ' <input class="submit" type="submit" value="ok" /></p>'.
                         '</form>';
                    break;
               
               default :
                    throw new Exception(__('invalid search engine'));
                    break;
          }

          $res =
          ($w->title ? $w->renderTitle(html::escapeHTML($w->title)) : '').
          $form;

          return $w->renderDiv($w->content_only,'externalSearch '.$w->class,'',$res);
     }
}