forked from GNUsocial/gnu-social
133 lines
3.7 KiB
PHP
133 lines
3.7 KiB
PHP
<?php
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// This file is part of GNU social - https://www.gnu.org/software/social
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//
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// GNU social is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// GNU social is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
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defined('GNUSOCIAL') || die();
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/**
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* Conversation tree
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*
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* The widget class for displaying a hierarchical list of notices.
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*
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* @category Widget
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* @package ConversationTreePlugin
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2019 Free Software Foundation, Inc http://www.fsf.org
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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class ConversationTree extends NoticeList
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{
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public $tree = null;
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public $table = null;
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/**
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* Show the tree of notices
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*
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* @return int
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*/
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public function show(): int
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{
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$cnt = $this->_buildTree();
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$this->out->elementStart('div', ['id' => 'notices_primary']);
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// TRANS: Header on conversation page. Hidden by default (h2).
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$this->out->element('h2', null, _('Notices'));
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$this->out->elementStart('ol', ['class' => 'notices xoxo old-school']);
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if (array_key_exists('root', $this->tree)) {
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$rootid = $this->tree['root'][0];
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$this->showNoticePlus($rootid);
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}
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$this->out->elementEnd('ol');
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$this->out->elementEnd('div');
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return $cnt;
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}
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public function _buildTree(): int
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{
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$cnt = 0;
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$this->tree = [];
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$this->table = [];
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while ($this->notice->fetch()) {
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$cnt++;
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$id = $this->notice->id;
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$notice = clone($this->notice);
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$this->table[$id] = $notice;
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if (is_null($notice->reply_to)) {
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$this->tree['root'] = [$notice->id];
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} elseif (array_key_exists($notice->reply_to, $this->tree)) {
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$this->tree[$notice->reply_to][] = $notice->id;
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} else {
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$this->tree[$notice->reply_to] = [$notice->id];
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}
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}
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return $cnt;
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}
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/**
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* Shows a notice plus its list of children.
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*
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* @param integer $id ID of the notice to show
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*
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* @return void
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*/
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public function showNoticePlus($id): void
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{
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$notice = $this->table[$id];
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$this->out->elementStart('li', ['class' => 'h-entry notice',
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'id' => 'notice-' . $id]);
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$item = $this->newListItem($notice);
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$item->show();
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if (array_key_exists($id, $this->tree)) {
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$children = $this->tree[$id];
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$this->out->elementStart('ol', ['class' => 'notices threaded-replies xoxo']);
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sort($children);
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foreach ($children as $child) {
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$this->showNoticePlus($child);
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}
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$this->out->elementEnd('ol');
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}
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$this->out->elementEnd('li');
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}
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/**
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* Override parent class to return our preferred item.
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*
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* @param Notice $notice Notice to display
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*
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* @return ConversationTreeItem a list item to show
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*/
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public function newListItem(Notice $notice): ConversationTreeItem
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{
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return new ConversationTreeItem($notice, $this->out);
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}
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}
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