Add switch for new ranking layout

By default fall back to old table layout for compatibility.
Also, mark old ranking functions as deprecated.

qa-include/qa-theme-base.php

@@ -47,6 +47,9 @@
 		protected $lines = 0;
 		protected $context = array();
 
+		// whether to use new block layout in rankings (true) or fall back to tables (false)
+		protected $ranking_block_layout = false;
+
 		protected $rooturl;
 		protected $template;
 		protected $content;
@@ -1264,6 +1267,13 @@
 				$ranking['type'] = 'items';
 			$class = 'qa-top-'.$ranking['type'];
 
+			if (!$this->ranking_block_layout) {
+				// old, less semantic table layout
+				$this->ranking_table($ranking, $class);
+				return;
+			}
+
+			// new block layout
 			foreach ($ranking['items'] as $item) {
 				$this->output('<span class="qa-ranking-item '.$class.'-item">');
 				$this->ranking_item($item, $class);
@@ -1273,33 +1283,120 @@
 
 		public function ranking_item($item, $class, $spacer=false) // $spacer is deprecated
 		{
+			if (!$this->ranking_block_layout) {
+				// old table layout
+				$this->ranking_table_item($item, $class, $spacer);
+				return;
+			}
+
 			if (isset($item['count']))
-				$this->ranking_count($item, $class);
+				$this->ranking_cell($item['count'].' &#215;', $class.'-count');
 
 			if (isset($item['avatar']))
 				$this->avatar($item, $class);
 
-			$this->ranking_label($item, $class);
+			$this->ranking_cell($item['label'], $class.'-label');
 
 			if (isset($item['score']))
-				$this->ranking_score($item, $class);
+				$this->ranking_cell($item['score'], $class.'-score');
+		}
+
+		public function ranking_cell($content, $class)
+		{
+			$tag = $this->ranking_block_layout ? 'span': 'td';
+			$this->output('<'.$tag.' class="'.$class.'">' . $content . '</'.$tag.'>');
 		}
 
+
+		/**
+		 * @deprecated Table-based layout of users/tags is deprecated from 1.7 onwards and may be
+		 * removed in a future version. Themes can switch to the new layout by setting the member
+		 * variable $ranking_block_layout to false.
+		 */
+		public function ranking_table($ranking, $class)
+		{
+			$rows = min($ranking['rows'], count($ranking['items']));
+
+			if ($rows > 0) {
+				$this->output('<table class="'.$class.'-table">');
+				$columns = ceil(count($ranking['items']) / $rows);
+
+				for ($row = 0; $row < $rows; $row++) {
+					$this->set_context('ranking_row', $row);
+					$this->output('<tr>');
+
+					for ($column = 0; $column < $columns; $column++) {
+						$this->set_context('ranking_column', $column);
+						$this->ranking_table_item(@$ranking['items'][$column*$rows+$row], $class, $column>0);
+					}
+
+					$this->clear_context('ranking_column');
+					$this->output('</tr>');
+				}
+				$this->clear_context('ranking_row');
+				$this->output('</table>');
+			}
+		}
+
+		/**
+		 * @deprecated See ranking_table above.
+		 */
+		public function ranking_table_item($item, $class, $spacer)
+		{
+			if ($spacer)
+				$this->ranking_spacer($class);
+
+			if (empty($item)) {
+				$this->ranking_spacer($class);
+				$this->ranking_spacer($class);
+
+			} else {
+				if (isset($item['count']))
+					$this->ranking_count($item, $class);
+
+				if (isset($item['avatar']))
+					$item['label'] = $item['avatar'].' '.$item['label'];
+
+				$this->ranking_label($item, $class);
+
+				if (isset($item['score']))
+					$this->ranking_score($item, $class);
+			}
+		}
+
+		/**
+		 * @deprecated See ranking_table above.
+		 */
+		public function ranking_spacer($class)
+		{
+			$this->output('<td class="'.$class.'-spacer">&nbsp;</td>');
+		}
+
+		/**
+		 * @deprecated See ranking_table above.
+		 */
 		public function ranking_count($item, $class)
 		{
-			$this->output('<span class="'.$class.'-count">'.$item['count'].' &#215;'.'</span>');
+			$this->output('<td class="'.$class.'-count">'.$item['count'].' &#215;</td>');
 		}
 
+		/**
+		 * @deprecated See ranking_table above.
+		 */
 		public function ranking_label($item, $class)
 		{
-			$this->output('<span class="'.$class.'-label">'.$item['label'].'</span>');
+			$this->output('<td class="'.$class.'-label">'.$item['label'].'</td>');
 		}
 
+		/**
+		 * @deprecated See ranking_table above.
+		 */
 		public function ranking_score($item, $class)
 		{
-			$this->output('<span class="'.$class.'-score">'.$item['score'].'</span>');
+			$this->output('<td class="'.$class.'-score">'.$item['score'].'</td>');
 		}
 
+
 		public function message_list_and_form($list)
 		{
 			if (!empty($list)) {

qa-theme/Candy/qa-theme.php

@@ -8,7 +8,7 @@
 
 	File: qa-theme/Candy/qa-theme.php
 	Version: See define()s at top of qa-include/qa-base.php
-	Description: Override something in base theme class for Candy theme
+	Description: Override base theme class for Candy theme
 
 
 	This program is free software; you can redistribute it and/or
@@ -26,14 +26,12 @@
 
 class qa_html_theme extends qa_html_theme_base
 {
+	// use new ranking layout
+	protected $ranking_block_layout = true;
+
 	public function nav_user_search() // reverse the usual order
 	{
 		$this->search();
 		$this->nav('user');
 	}
 }
-
-
-/*
-	Omit PHP closing tag to help avoid accidental output
-*/
\ No newline at end of file

qa-theme/Classic/qa-theme.php

+<?php
+
+/*
+	Question2Answer (c) Gideon Greenspan
+
+	http://www.question2answer.org/
+
+
+	File: qa-theme/Candy/qa-theme.php
+	Version: See define()s at top of qa-include/qa-base.php
+	Description: Override base theme class for Classic theme
+
+
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public License
+	as published by the Free Software Foundation; either version 2
+	of the License, or (at your option) any later version.
+
+	This program 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.
+
+	More about this license: http://www.question2answer.org/license.php
+*/
+
+class qa_html_theme extends qa_html_theme_base
+{
+	// use new ranking layout
+	protected $ranking_block_layout = true;
+}

qa-theme/Snow/qa-theme.php

@@ -2,6 +2,9 @@
 
 class qa_html_theme extends qa_html_theme_base
 {
+	// use new ranking layout
+	protected $ranking_block_layout = true;
+
 	// outputs login form if user not logged in
 	public function nav_user_search()
 	{
@@ -158,8 +161,3 @@ class qa_html_theme extends qa_html_theme_base
 	}
 
 }
-
-
-/*
-	Omit PHP closing tag to help avoid accidental output
-*/
\ No newline at end of file