Use ajax pagination, paginator.js on find friends page

Signed-off-by: Richard Mansfield <richardm@catalyst.net.nz>

htdocs/json/friendsearch.php

+<?php
+/**
+ * Mahara: Electronic portfolio, weblog, resume builder and social networking
+ * Copyright (C) 2006-2009 Catalyst IT Ltd and others; see:
+ *                         http://wiki.mahara.org/Contributors
+ *
+ * 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 3 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @package    mahara
+ * @subpackage core
+ * @author     Catalyst IT Ltd
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
+ * @copyright  (C) 2006-2009 Catalyst IT Ltd http://catalyst.net.nz
+ *
+ */
+
+define('INTERNAL', 1);
+define('JSON', 1);
+
+require(dirname(dirname(__FILE__)) . '/init.php');
+require('searchlib.php');
+
+$query  = param_variable('query', '');
+$offset = param_integer('offset', 0);
+$limit  = param_integer('limit', 10);
+
+$data = search_user($query, $limit, $offset, array('exclude' => $USER->get('id')));
+$data['query'] = $query;
+build_userlist_html($data, 'find');
+
+log_debug($data);
+json_reply(false, array('data' => $data));
+?>

htdocs/lib/user.php

@@ -1119,6 +1119,31 @@ function get_users_data($userlist, $getviews=true) {
     return $ordereddata;
 }
 
+function build_userlist_html(&$data, $page) {
+    if ($data['data']) {
+        $userlist = join(',', array_map(create_function('$u','return $u[\'id\'];'), $data['data']));
+        $userdata = get_users_data($userlist, $page == 'myfriends');
+    }
+    $smarty = smarty_core();
+    $smarty->assign('data', isset($userdata) ? $userdata : null);
+    $smarty->assign('page', $page);
+    $smarty->assign('query', $data['query']);
+    $data['tablerows'] = $smarty->fetch('user/userresults.tpl');
+    $pagination = build_pagination(array(
+        'id' => 'friendslist_pagination',
+        'url' => get_config('wwwroot') . 'user/' . $page . '.php?query=' . $data['query'],
+        'jsonscript' => 'json/friendsearch.php',
+        'datatable' => 'friendslist',
+        'count' => $data['count'],
+        'limit' => $data['limit'],
+        'offset' => $data['offset'],
+        'resultcounttextsingular' => get_string('user', 'group'),
+        'resultcounttextplural' => get_string('users', 'group'),
+    ));
+    $data['pagination'] = $pagination['html'];
+    $data['pagination_js'] = $pagination['javascript'];
+}
+
 function get_institution_string_for_user($userid) {
     static $institutions = null;
     if (is_null($institutions)) {

htdocs/theme/raw/templates/user/find.tpl

 {include file="header.tpl"}
             <div id="friendslistcontainer">
             {$form}
-{if $users}
             <table id="friendslist" class="fullwidth listing">
                 <tbody>
-{foreach from=$users item=user}
-                    <tr class="r{cycle values=1,0}">
-{include file="user/user.tpl" user=$user page='find'}
-                    </tr>
-{/foreach}
+{$results.tablerows}
                 </tbody>
             </table>
             </div>
-{$pagination}
-{elseif $message}
-            <div class="message">{$message}</div>
-{/if}
+{$results.pagination}
 </div>
 {include file="footer.tpl"}

htdocs/theme/raw/templates/user/userresults.tpl

+{if $data}
+{foreach from=$data item=user}
+                    <tr class="r{cycle values=1,0}">
+{include file="user/user.tpl" user=$user page=$page}
+                    </tr>
+{/foreach}
+{elseif $query}
+  <tr><td><div class="message">{str tag=nosearchresultsfound section=group}</div></td></tr>
+{/if}
\ No newline at end of file

htdocs/user/find.php

@@ -38,11 +38,10 @@ $offset = param_integer('offset', 0);
 $limit  = 10;
 
 $data = search_user($query, $limit, $offset, array('exclude' => $USER->get('id')));
+$data['query'] = $query;
+build_userlist_html($data, 'find');
 
-if ($data['data']) {
-    $userlist = join(',', array_map(create_function('$u','return $u[\'id\'];'), $data['data']));
-    $data['data'] = get_users_data($userlist, false);
-}
+$js = 'addLoadEvent(function () {' . $data['pagination_js'] . '});';
 
 $searchform = pieform(array(
     'name' => 'search',
@@ -59,28 +58,11 @@ $searchform = pieform(array(
     )
 ));
 
-$pagination = build_pagination(array(
-    'url' => get_config('wwwroot') . 'user/find.php?query=' . $query,
-    'count' => $data['count'],
-    'limit' => $limit,
-    'offset' => $offset,
-    'resultcounttextsingular' => get_string('user', 'group'),
-    'resultcounttextplural' => get_string('users', 'group'),
-));
-
-if ($query && !$data['count']) {
-    // Search run, no results
-    $message = get_string('nosearchresultsfound', 'group');
-}
-
-$smarty = smarty(array(), array(), array(), array('sideblocks' => array(friends_control_sideblock('find'))));
+$smarty = smarty(array('paginator'), array(), array(), array('sideblocks' => array(friends_control_sideblock('find'))));
 $smarty->assign('PAGEHEADING', hsc(TITLE));
-$smarty->assign('users', $data['data']);
+$smarty->assign('INLINEJAVASCRIPT', $js);
+$smarty->assign('results', $data);
 $smarty->assign('form', $searchform);
-$smarty->assign('pagination', $pagination['html']);
-if (isset($message)) {
-    $smarty->assign('message', $message);
-}
 $smarty->display('user/find.tpl');
 
 function search_submit(Pieform $form, $values) {