showmore/showmore.php

   1 <?php
   2 /**
   3  * Name: Show More
   4  * Description: Collapse posts
   5  * Version: 1.0
   6  * Author: Michael Vogel <ike@piratenpartei.de>
   7  *         based upon NSFW from Mike Macgirvin <http://macgirvin.com/profile/mike>
   8  *
   9  */
  10
  11 function showmore_install() {
  12         register_hook('prepare_body', 'addon/showmore/showmore.php', 'showmore_prepare_body');
  13         register_hook('plugin_settings', 'addon/showmore/showmore.php', 'showmore_addon_settings');
  14         register_hook('plugin_settings_post', 'addon/showmore/showmore.php', 'showmore_addon_settings_post');
  15 }
  16
  17 function showmore_uninstall() {
  18         unregister_hook('prepare_body', 'addon/showmore/showmore.php', 'showmore_prepare_body');
  19         unregister_hook('plugin_settings', 'addon/showmore/showmore.php', 'showmore_addon_settings');
  20         unregister_hook('plugin_settings_post', 'addon/showmore/showmore.php', 'showmore_addon_settings_post');
  21 }
  22
  23 function showmore_addon_settings(&$a,&$s) {
  24
  25         if(! local_user())
  26                 return;
  27
  28         /* Add our stylesheet to the page so we can make our settings look nice */
  29
  30         $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'.$a->get_baseurl().'/addon/showmore/showmore.css'.'" media="all"/>'."\r\n";
  31
  32         $enable_checked = (intval(get_pconfig(local_user(),'showmore','disable')) ? '' : ' checked="checked"');
  33         $chars = get_pconfig(local_user(),'showmore','chars');
  34         if(!$chars)
  35                 $chars = '1100';
  36
  37         $s .= '<div class="settings-block">';
  38         $s .= '<h3>' . t('"Show more" Settings').'</h3>';
  39         $s .= '<div id="showmore-wrapper">';
  40
  41         $s .= '<label id="showmore-enable-label" for="showmore-enable">'.t('Enable Show More').'</label>';
  42         $s .= '<input id="showmore-enable" type="checkbox" name="showmore-enable" value="1"'.$enable_checked.' />';
  43         $s .= '<div class="clear"></div>';
  44         $s .= '<label id="showmore-label" for="showmore-chars">'.t('Cutting posts after how much characters').' </label>';
  45         $s .= '<input id="showmore-words" type="text" name="showmore-chars" value="'.$chars.'" />';
  46         $s .= '</div><div class="clear"></div>';
  47
  48         $s .= '<div class="settings-submit-wrapper" ><input type="submit" id="showmore-submit" name="showmore-submit" class="settings-submit" value="' . t('Submit') . '" /></div>';
  49 //      $s .= '<div class="showmore-desc">' . t('Use /expression/ to provide regular expressions') . '</div></div>';
  50
  51         return;
  52 }
  53
  54 function showmore_addon_settings_post(&$a,&$b) {
  55
  56         if(! local_user())
  57                 return;
  58
  59         if($_POST['showmore-submit']) {
  60                 set_pconfig(local_user(),'showmore','chars',trim($_POST['showmore-chars']));
  61                 $enable = ((x($_POST,'showmore-enable')) ? intval($_POST['showmore-enable']) : 0);
  62                 $disable = 1-$enable;
  63                 set_pconfig(local_user(),'showmore','disable', $disable);
  64                 info( t('Show More Settings saved.') . EOL);
  65         }
  66 }
  67
  68 function showmore_prepare_body(&$a,&$b) {
  69
  70         $words = null;
  71         if(get_pconfig(local_user(),'showmore','disable'))
  72                 return;
  73
  74         $chars = (int)get_pconfig(local_user(),'showmore','chars');
  75         if(!$chars)
  76                 $chars = 1100;
  77
  78         if (strlen(strip_tags(trim($b['html']))) > $chars) {
  79                 $found = true;
  80                 $shortened = trim(showmore_cutitem($b['html'], $chars))."...";
  81         }
  82
  83         if($found) {
  84                 $rnd = random_string(8);
  85                 $b['html'] = '<span id="showmore-teaser-'.$rnd.'" style="display: block;">'.$shortened." ".
  86                                 '<span id="showmore-wrap-'.$rnd.'" style="white-space:nowrap;" class="fakelink" onclick="openClose(\'showmore-'.$rnd.'\'); openClose(\'showmore-teaser-'.$rnd.'\');" >'.sprintf(t('show more')).'</span></span>'.
  87                                 '<div id="showmore-'.$rnd.'" style="display: none;">'.$b['html'].'</div>';
  88         }
  89 }
  90
  91 function showmore_cutitem($text, $limit) {
  92         $text = trim($text);
  93
  94         $text = mb_convert_encoding($text, 'HTML-ENTITIES', "UTF-8");
  95
  96         $text = substr($text, 0, $limit);
  97
  98         $pos1 = strrpos($text, "<");
  99         $pos2 = strrpos($text, ">");
 100         $pos3 = strrpos($text, "&");
 101         $pos4 = strrpos($text, ";");
 102
 103         if ($pos1 > $pos3) {
 104                 if ($pos1 > $pos2)
 105                         $text = substr($text, 0, $pos1);
 106         } else {
 107                 if ($pos3 > $pos4)
 108                         $text = substr($text, 0, $pos3);
 109         }
 110
 111         $doc = new DOMDocument();
 112         $doc->preserveWhiteSpace = false;
 113
 114         $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
 115         @$doc->loadHTML($doctype."<html><body>".$text."</body></html>");
 116
 117         $text = $doc->saveHTML();
 118         $text = str_replace(array("<html><body>", "</body></html>", $doctype), array("", "", ""), $text);
 119
 120         return($text);
 121 }