# HG changeset patch
# User Dan
# Date 1186409388 14400
# Node ID 80facec76d9f0c63e27e0568f9af8bfe8cc34bc2
# Parent  03c7f5ec1e4c3c7f074918a5a139a6ece1287d86
Tag cloud is now implemented

diff -r 03c7f5ec1e4c -r 80facec76d9f includes/clientside/css/enano-shared.css
--- a/includes/clientside/css/enano-shared.css	Sun Aug 05 17:10:17 2007 -0400
+++ b/includes/clientside/css/enano-shared.css	Mon Aug 06 10:09:48 2007 -0400
@@ -422,3 +422,83 @@
 td.diff-context { background: #eee; font-size: smaller; }
 span.diffchange { color: red; font-weight: bold; }
 
+/* Tag cloud */
+span.tc_word_normal {
+  font-family: Arial, helvetica, sans-serif;
+  font-size: 10pt;
+  letter-spacing: 3px;
+  padding: 4px 4px 4px 4px;
+}
+span.tc_word_small {
+  font-family: Arial, helvetica, sans-serif;
+  font-size: 8pt;
+}
+span.tc_word_normal a, span.tc_word_small a {
+  color: inherit !important;
+  text-decoration: none !important;
+}
+/* These are from http://www.lotsofcode.com/php/tutorials/tag-cloud */
+span.tc_normal_index_1 {
+  color: #000;
+  font-size: 2.4em;
+}
+span.tc_normal_index_2 {
+  color: #333;
+  font-size: 2.2em;
+}
+span.tc_normal_index_3 {
+  color: #666;
+  font-size: 2.0em;
+}
+span.tc_normal_index_4 {
+  color: #999;
+  font-size: 1em;
+}
+span.tc_normal_index_5 {
+  color: #aaa;
+  font-size: 1.6em;
+}
+span.tc_normal_index_6 {
+  color: #bbb;
+  font-size: 1.4em;
+}
+span.tc_normal_index_7 {
+  color: #ccc;
+  font-size: 1.2em;
+}
+span.tc_normal_index_8 {
+  color: #ddd;
+  font-size: 0.8em;
+}
+span.tc_small_index_1 {
+  color: #000;
+  font-size: 1.4em;
+}
+span.tc_small_index_2 {
+  color: #333;
+  font-size: 1.3em;
+}
+span.tc_small_index_3 {
+  color: #666;
+  font-size: 1.2em;
+}
+span.tc_small_index_4 {
+  color: #999;
+  font-size: 1em;
+}
+span.tc_small_index_5 {
+  color: #aaa;
+  font-size: 1.3em;
+}
+span.tc_small_index_6 {
+  color: #bbb;
+  font-size: 1.1em;
+}
+span.tc_small_index_7 {
+  color: #ccc;
+  font-size: 0.9em;
+}
+span.tc_small_index_8 {
+  color: #ddd;
+  font-size: 0.7em;
+}
diff -r 03c7f5ec1e4c -r 80facec76d9f includes/pageprocess.php
--- a/includes/pageprocess.php	Sun Aug 05 17:10:17 2007 -0400
+++ b/includes/pageprocess.php	Mon Aug 06 10:09:48 2007 -0400
@@ -753,7 +753,7 @@
           $parser->assign_bool(array(
             'page_exists' => true
             ));
-          $page_title = $paths->pages[ $c_page_id ]['name'];
+          $page_title = htmlspecialchars($paths->pages[ $c_page_id ]['name']);
         }
         else
         {
diff -r 03c7f5ec1e4c -r 80facec76d9f includes/tagcloud.php
--- a/includes/tagcloud.php	Sun Aug 05 17:10:17 2007 -0400
+++ b/includes/tagcloud.php	Mon Aug 06 10:09:48 2007 -0400
@@ -51,7 +51,7 @@
   
   function add_word($word)
   {
-    $word = strtolower($word);
+    $word = sanitize_tag($word);
     
     if ( isset($this->words[$word]) )
       $this->words[$word] += 1;
@@ -125,25 +125,33 @@
   
   /**
    * Generates and returns HTML for the cloud.
+   * @param string Optional. The CSS class applied to all <span> tags. Can be "normal" or "small". Defaults to "normal".
+   * @param string Optional. The alignment for the div. Defaults to "center".
    * @return string
    */
    
-  function make_html()
+  function make_html($span_class = 'normal', $div_align = 'center')
   {
     $html = array();
     $max  = max($this->words);
     $size = $this->get_cloud_size();
+    $inc = 0;
     if ( count($this->words) > 0 )
     {
       foreach ( $this->words as $word => $popularity )
       {
+        $inc++;
         $word = htmlspecialchars($word);
         $percent = ( $popularity / $max ) * 100;
         $index = $this->get_scale_class($percent);
-        $html[] = "<span class='tc_word tc_index_$index'>$word</span>";
+        $newline = ( $inc == 5 ) ? "<br />" : '';
+        ( $inc == 5 ) ? $inc = 0 : null;
+        $url = makeUrlNS('Special', 'TagCloud/' . htmlspecialchars($word));
+        $s = ( $popularity != 1 ) ? 's' : '';
+        $html[] = "<span class='tc_word_{$span_class} tc_{$span_class}_index_{$index}'><a href='$url' title='$popularity page$s'>$word</a></span>"; // $newline";
       }
     }
-    $html = implode("\n", $html);
+    $html = '<div style="text-align: ' . $div_align . '; margin: 0 auto; max-width: 400px;">' . implode("\n", $html) . '</div>';
     return $html;
   }
    
diff -r 03c7f5ec1e4c -r 80facec76d9f plugins/SpecialPageFuncs.php
--- a/plugins/SpecialPageFuncs.php	Sun Aug 05 17:10:17 2007 -0400
+++ b/plugins/SpecialPageFuncs.php	Mon Aug 06 10:09:48 2007 -0400
@@ -58,6 +58,13 @@
       \'namespace\'=>\'Special\',
       \'special\'=>0,\'visible\'=>1,\'comments_on\'=>0,\'protected\'=>1,\'delvotes\'=>0,\'delvote_ips\'=>\'\',
       ));
+    
+    $paths->add_page(Array(
+      \'name\'=>\'Tag cloud\',
+      \'urlname\'=>\'TagCloud\',
+      \'namespace\'=>\'Special\',
+      \'special\'=>0,\'visible\'=>1,\'comments_on\'=>0,\'protected\'=>1,\'delvotes\'=>0,\'delvote_ips\'=>\'\',
+      ));
     ');
 
 // function names are IMPORTANT!!! The name pattern is: page_<namespace ID>_<page URLname, without namespace>
@@ -366,4 +373,107 @@
   $template->footer();
 }
 
+function page_Special_TagCloud()
+{
+  global $db, $session, $paths, $template, $plugins; // Common objects
+  
+  $template->header();
+  
+  if ( $tag = $paths->getParam(0) )
+  {
+    $tag = sanitize_tag($tag);
+    $q = $db->sql_query('SELECT page_id, namespace FROM '.table_prefix.'tags WHERE tag_name=\'' . $db->escape($tag) . '\';');
+    if ( !$q )
+      $db->_die();
+    if ( $row = $db->fetchrow() )
+    {
+      echo '<div class="tblholder">
+              <table border="0" cellspacing="1" cellpadding="4">';
+      echo '<tr><th colspan="2">Pages tagged "' . htmlspecialchars($tag) . '"</th></tr>';
+      echo '<tr>';
+      $i = 0;
+      $td_class = 'row1';
+      do
+      {
+        if ( $i % 2 == 0 && $i > 1 )
+        {
+          $td_class = ( $td_class == 'row2' ) ? 'row1' : 'row2';
+          echo '</tr><tr>';
+        }
+        $i++;
+        $title = get_page_title_ns($row['page_id'], $row['namespace']);
+        if ( $row['namespace'] != 'Article' && isset($paths->nslist[$row['namespace']]) )
+          $title = $paths->nslist[$row['namespace']] . $title;
+        $url = makeUrlNS($row['namespace'], $row['page_id']);
+        $class = ( isPage( $paths->nslist[$row['namespace']] . $row['page_id'] ) ) ? '' : ' class="wikilink-nonexistent"';
+        $link = '<a href="' . htmlspecialchars($url) . '"' . $class . '>' . htmlspecialchars($title) . '</a>';
+        echo "<td class=\"$td_class\" style=\"width: 50%;\">$link</td>";
+        // " workaround for jEdit highlighting bug
+      }
+      while ( $row = $db->fetchrow() );
+      while ( $i % 2 > 0 )
+      {
+        $i++;
+        echo "<td class=\"$td_class\" style=\"width: 50%;\"></td>";
+      }
+      // " workaround for jEdit highlighting bug
+      echo '<tr>
+              <th colspan="2" class="subhead"><a href="' . makeUrlNS('Special', 'TagCloud') . '" style="color: white;">&laquo; Return to tag cloud</a></th>
+            </tr>';
+      echo '</table>';
+      echo '</div>';
+    }
+  }
+  else
+  {
+    $cloud = new TagCloud();
+    
+    $q = $db->sql_query('SELECT tag_name FROM '.table_prefix.'tags;');
+    if ( !$q )
+      $db->_die();
+    if ( $db->numrows() < 1 )
+    {
+      echo '<p>No pages are tagged yet.</p>';
+    }
+    else
+    {
+      echo '<h3>Summary of page tagging</h3>';
+      while ( $row = $db->fetchrow() )
+      {
+        $cloud->add_word($row['tag_name']);
+      }
+      echo $cloud->make_html('normal');
+      echo '<p>Hover your mouse over a tag to see how many pages have the tag. Click on a tag to see a list of the pages that have it.</p>';
+    }
+  }
+  
+  $template->footer();
+}
+
+// tag cloud sidebar block
+function sidebar_add_tag_cloud()
+{
+  global $db, $session, $paths, $template, $plugins; // Common objects
+  $cloud = new TagCloud();
+    
+  $q = $db->sql_query('SELECT tag_name FROM '.table_prefix.'tags;');
+  if ( !$q )
+    $db->_die();
+  if ( $db->numrows() < 1 )
+  {
+    $sb_html = 'No pages are tagged yet.';
+  }
+  else
+  {
+    while ( $row = $db->fetchrow() )
+    {
+      $cloud->add_word($row['tag_name']);
+    }
+    $sb_html = $cloud->make_html('small', 'justify') . '<br /><a style="text-align: center;" href="' . makeUrlNS('Special', 'TagCloud') . '">Larger version</a>';
+  }
+  $template->sidebar_widget('Tag cloud', "<div style='padding: 5px;'>$sb_html</div>");
+}
+
+$plugins->attachHook('compile_template', 'sidebar_add_tag_cloud();');
+
 ?>
\ No newline at end of file