3 * Display a conversation in the browser
9 * @author Evan Prodromou <evan@controlyourself.ca>
10 * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
11 * @link http://laconi.ca/
13 * Laconica - a distributed open-source microblogging tool
14 * Copyright (C) 2009, Control Yourself, Inc.
16 * This program is free software: you can redistribute it and/or modify
17 * it under the terms of the GNU Affero General Public License as published by
18 * the Free Software Foundation, either version 3 of the License, or
19 * (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU Affero General Public License for more details.
26 * You should have received a copy of the GNU Affero General Public License
27 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 if (!defined('LACONICA')) {
34 // XXX: not sure how to do paging yet,
35 // so set a 60-notice limit
37 require_once INSTALLDIR.'/lib/noticelist.php';
40 * Conversation tree in the browser
44 * @author Evan Prodromou <evan@controlyourself.ca>
45 * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
46 * @link http://laconi.ca/
49 class ConversationAction extends Action
57 * @param array $args Web and URL arguments
59 * @return boolean false if id not passed in
62 function prepare($args)
64 parent::prepare($args);
65 $this->id = $this->trimmed('id');
66 if (empty($this->id)) {
69 $this->id = $this->id+0;
70 $this->page = $this->trimmed('page');
71 if (empty($this->page)) {
80 * @param array $args Web and URL arguments
85 function handle($args)
87 parent::handle($args);
92 * Returns the page title
94 * @return string page title
99 return _("Conversation");
105 * Display a hierarchical unordered list in the content area.
106 * Uses ConversationTree to do most of the heavy lifting.
111 function showContent()
113 $notices = Notice::conversationStream($this->id, null, null);
115 $ct = new ConversationTree($notices, $this);
124 * The widget class for displaying a hierarchical list of notices.
128 * @author Evan Prodromou <evan@controlyourself.ca>
129 * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
130 * @link http://laconi.ca/
133 class ConversationTree extends NoticeList
139 * Show the tree of notices
146 $cnt = $this->_buildTree();
148 $this->out->elementStart('div', array('id' =>'notices_primary'));
149 $this->out->element('h2', null, _('Notices'));
150 $this->out->elementStart('ol', array('class' => 'notices xoxo'));
152 if (array_key_exists('root', $this->tree)) {
153 $rootid = $this->tree['root'][0];
154 $this->showNoticePlus($rootid);
157 $this->out->elementEnd('ol');
158 $this->out->elementEnd('div');
163 function _buildTree()
165 $this->tree = array();
166 $this->table = array();
168 while ($this->notice->fetch()) {
172 $id = $this->notice->id;
173 $notice = clone($this->notice);
175 $this->table[$id] = $notice;
177 if (is_null($notice->reply_to)) {
178 $this->tree['root'] = array($notice->id);
179 } else if (array_key_exists($notice->reply_to, $this->tree)) {
180 $this->tree[$notice->reply_to][] = $notice->id;
182 $this->tree[$notice->reply_to] = array($notice->id);
190 * Shows a notice plus its list of children.
192 * @param integer $id ID of the notice to show
197 function showNoticePlus($id)
199 $notice = $this->table[$id];
201 // We take responsibility for doing the li
203 $this->out->elementStart('li', array('class' => 'hentry notice',
204 'id' => 'notice-' . $id));
206 $item = $this->newListItem($notice);
209 if (array_key_exists($id, $this->tree)) {
210 $children = $this->tree[$id];
212 $this->out->elementStart('ol', array('class' => 'notices'));
216 foreach ($children as $child) {
217 $this->showNoticePlus($child);
220 $this->out->elementEnd('ol');
223 $this->out->elementEnd('li');
227 * Override parent class to return our preferred item.
229 * @param Notice $notice Notice to display
231 * @return NoticeListItem a list item to show
234 function newListItem($notice)
236 return new ConversationTreeItem($notice, $this->out);
241 * Conversation tree list item
243 * Special class of NoticeListItem for use inside conversation trees.
247 * @author Evan Prodromou <evan@controlyourself.ca>
248 * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
249 * @link http://laconi.ca/
252 class ConversationTreeItem extends NoticeListItem
255 * start a single notice.
257 * The default creates the <li>; we skip, since the ConversationTree
258 * takes care of that.
271 * The default closes the <li>; we skip, since the ConversationTree
272 * takes care of that.
283 * show link to notice conversation page
285 * Since we're only used on the conversation page, we skip this
290 function showContext()