1: <?php
  2: /**
  3:  * Display most recent image comments for galleries.
  4:  *
  5:  * Copyright 2007-2012 Horde LLC (http://www.horde.org/)
  6:  *
  7:  * See the enclosed file COPYING for license information (GPL). If you
  8:  * did not receive this file, see http://www.horde.org/licenses/gpl.
  9:  *
 10:  * @author  Michael Rubinsky <mrubinsk@horde.org>
 11:  */
 12: class Ansel_Block_RecentComments extends Horde_Core_Block
 13: {
 14:     /**
 15:      * TODO
 16:      *
 17:      * @var Ansel_Gallery
 18:      */
 19:     private $_gallery = null;
 20: 
 21:     /**
 22:      */
 23:     public function __construct($app, $params = array())
 24:     {
 25:         parent::__construct($app, $params);
 26: 
 27:         $this->enabled = ($GLOBALS['registry']->images->hasComments() &&
 28:                           $GLOBALS['registry']->hasMethod('forums/getThreadsBatch'));
 29:         $this->_name = _("Recent Photo Comments");
 30:     }
 31: 
 32:     /**
 33:      *
 34:      * @return array
 35:      */
 36:     protected function _params()
 37:     {
 38:         $params = array(
 39:             'gallery' => array(
 40:                 'name' => _("Gallery"),
 41:                 'type' => 'enum',
 42:                 'default' => '__random',
 43:                 'values' => array('all' => 'All')
 44:             )
 45:         );
 46:         $storage = $GLOBALS['injector']->getInstance('Ansel_Storage');
 47:         if (empty($GLOBALS['conf']['gallery']['listlimit']) ||
 48:             ($storage->countGalleries(
 49:                 $GLOBALS['registry']->getAuth(),
 50:                 array('perm' => Horde_Perms::READ)) < $GLOBALS['conf']['gallery']['listlimit'])) {
 51: 
 52:             foreach ($storage->listGalleries(array('perm' => Horde_Perms::READ)) as $gal) {
 53:                 $params['gallery']['values'][$gal->id] = $gal->get('name');
 54:             }
 55:         }
 56: 
 57:         return $params;
 58:     }
 59: 
 60:     /**
 61:      */
 62:     protected function _title()
 63:     {
 64:         if ($this->_params['gallery'] != 'all') {
 65:             try {
 66:                 $gallery = $this->_getGallery();
 67:             } catch (Horde_Exception $e) {
 68:                 return Ansel::getUrlFor('view', array('view' => 'List'), true)->link() . _("Gallery") . '</a>';
 69:             }
 70:             // Build the gallery name.
 71:             if (isset($this->_params['gallery'])) {
 72:                 $name = htmlspecialchars($gallery->get('name'));
 73:             }
 74:             $viewurl = Ansel::getUrlFor('view',
 75:                                         array('gallery' => $gallery->id,
 76:                                               'view' => 'Gallery',
 77:                                               'slug' => $gallery->get('slug')),
 78:                                         true);
 79:         } else {
 80:             $viewurl = Ansel::getUrlFor('view', array('view' => 'List'), true);
 81:             $name = _("All Galleries");
 82:         }
 83: 
 84:         return sprintf(_("Recent Comments In %s"), $viewurl->link() . $name . '</a>');
 85:     }
 86: 
 87:     /**
 88:      */
 89:     protected function _content()
 90:     {
 91:         global $registry;
 92: 
 93:         if ($this->_params['gallery'] == 'all') {
 94:             $threads = $registry->call('forums/list', array(0, 'ansel'));
 95:             $image_ids = array();
 96:             foreach ($threads as $thread) {
 97:                 $image_ids[] = $thread['forum_name'];
 98:             }
 99:         } else {
100:             try {
101:                 $gallery = $this->_getGallery();
102:             } catch (Horde_Exception $e) {
103:                 return $e->getMessage();
104:             }
105:             $results = array();
106:             $image_ids = $gallery->listImages();
107:         }
108:         $results = array();
109:         $threads = $registry->call('forums/getThreadsBatch', array($image_ids, 'message_timestamp', 1, false, 'ansel', null, 0, 10));
110:         foreach ($threads as $image_id => $messages) {
111:             foreach ($messages as $message) {
112:                 $message['image_id'] = $image_id;
113:                 $results[] = $message;
114:             }
115:         }
116: 
117:         $results = $this->_asortbyindex($results, 'message_timestamp');
118:         $html = '<div id="ansel_preview"></div>'
119:             . '<script type="text/javascript">'
120:             . 'function previewImage(e, image_id) {$(\'ansel_preview\').style.left = Event.pointerX(e) + \'px\'; $(\'ansel_preview\').style.top = Event.pointerY(e) + \'px\';new Ajax.Updater({success:\'ansel_preview\'}, \'' . Horde::url('preview.php') . '\', {method: \'post\', parameters:\'?image=\' + image_id, onsuccess:$(\'ansel_preview\').show()});}'
121:             . '</script>'
122:             . '<table class="linedRow" cellspacing="0" style="width:100%"><thead><tr class="item nowrap"><th class="item leftAlign">' . _("Date") . '</th><th class="item leftAlign">' . _("Image") . '</th><th class="item leftAlign">' . _("Subject") . '</th><th class="item leftAlign">' . _("By") . '</th></tr></thead><tbody>';
123: 
124:         foreach ($results as $comment) {
125:             try {
126:                 $image = $GLOBALS['injector']->getInstance('Ansel_Storage')->getImage($comment['image_id']);
127:                 $url = Ansel::getUrlFor('view',
128:                                         array('view' => 'Image',
129:                                               'gallery' => abs($image->gallery),
130:                                               'image' => $comment['image_id']),
131:                                         true);
132:                 $caption = substr($image->caption, 0, 30);
133:                 if (strlen($image->caption) > 30) {
134:                     $caption .= '...';
135:                 }
136:                 $html .= '<tr><td>'
137:                     . strftime('%x', $comment['message_timestamp'])
138:                     . '</td><td class="nowrap">'
139:                     . $url->link(array('onmouseout' => '$("ansel_preview").hide();$("ansel_preview").update("");',
140:                                        'onmouseover' => 'previewImage(event, ' . $comment['image_id'] . ');'))
141:                     . ($image->caption == '' ? $image->filename : $caption)
142:                     . '</a></td><td class="nowrap">'
143:                     . $comment['message_subject'] . '</td><td class="nowrap">'
144:                     . $comment['message_author'] . '</td></tr>';
145:             } catch (Horde_Exception $e) {}
146:         }
147:         $html .= '</tbody></table>';
148: 
149:         return $html;
150:     }
151: 
152:     /**
153:      * @return Ansel_Gallery
154:      * @throws Horde_Exception_NotFound
155:      * @throws Horde_Exception_PermissionDenied
156:      */
157:     private function _getGallery()
158:     {
159:         // Make sure we haven't already selected a gallery.
160:         if ($this->_gallery instanceof Ansel_Gallery) {
161:             return $this->_gallery;
162:         }
163: 
164:         // Get the gallery object and cache it.
165:         if (isset($this->_params['gallery']) &&
166:             $this->_params['gallery'] != '__random') {
167:             $this->_gallery = $GLOBALS['injector']->getInstance('Ansel_Storage')->getGallery($this->_params['gallery']);
168:         } else {
169:             $this->_gallery =$GLOBALS['injector']->getInstance('Ansel_Storage')->getRandomGallery();
170:         }
171: 
172:         if (empty($this->_gallery)) {
173:             throw new Horde_Exception_NotFound(_("Gallery does not exist."));
174:         } elseif (!$this->_gallery->hasPermission($GLOBALS['registry']->getAuth(), Horde_Perms::READ)) {
175:             throw new Horde_Exception_PermissionDenied(_("Access denied viewing this gallery."));
176:         }
177: 
178:         // Return a reference to the gallery.
179:         return $this->_gallery;
180:     }
181: 
182:     /**
183:      * Numerically sorts an associative array by a specific index.
184:      *
185:      * Designed to ease sorting stories by a timestamp when combining seperate
186:      * channels into one array.
187:      *
188:      * @param array  $sortarray  The array to sort.
189:      * @param string $index      The index that contains the numerical value
190:      *                           to sort by.
191:      */
192:     private function _asortbyindex ($sortarray, $index)
193:     {
194:         $lastindex = count ($sortarray) - 1;
195:         for ($subindex = 0; $subindex < $lastindex; $subindex++) {
196:             $lastiteration = $lastindex - $subindex;
197:             for ($iteration = 0; $iteration < $lastiteration; $iteration++) {
198:                 $nextchar = 0;
199:                 if ($sortarray[$iteration][$index] < $sortarray[$iteration + 1][$index]) {
200:                     $temp = $sortarray[$iteration];
201:                     $sortarray[$iteration] = $sortarray[$iteration + 1];
202:                     $sortarray[$iteration + 1] = $temp;
203:                 }
204:             }
205:         }
206: 
207:         return ($sortarray);
208:     }
209: 
210: }
211: