474 lines
13 KiB
PHP
474 lines
13 KiB
PHP
<?php
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/**
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* Laconica, the distributed open-source microblogging tool
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*
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* widget for displaying a list of notices
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*
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* PHP version 5
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*
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* LICENCE: This program 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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* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category UI
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* @package Laconica
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* @author Evan Prodromou <evan@controlyourself.ca>
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* @copyright 2008 Control Yourself, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://laconi.ca/
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*/
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if (!defined('LACONICA')) {
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exit(1);
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}
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/**
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* widget for displaying a list of notices
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*
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* There are a number of actions that display a list of notices, in
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* reverse chronological order. This widget abstracts out most of the
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* code for UI for notice lists. It's overridden to hide some
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* data for e.g. the profile page.
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*
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* @category UI
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* @package Laconica
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* @author Evan Prodromou <evan@controlyourself.ca>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://laconi.ca/
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* @see Notice
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* @see StreamAction
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* @see NoticeListItem
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* @see ProfileNoticeList
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*/
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class NoticeList
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{
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/** the current stream of notices being displayed. */
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var $notice = null;
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/**
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* constructor
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*
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* @param Notice $notice stream of notices from DB_DataObject
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*/
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function __construct($notice)
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{
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$this->notice = $notice;
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}
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/**
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* show the list of notices
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*
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* "Uses up" the stream by looping through it. So, probably can't
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* be called twice on the same list.
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*
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* @return int count of notices listed.
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*/
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function show()
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{
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common_element_start('ul', array('id' => 'notices'));
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$cnt = 0;
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while ($this->notice->fetch() && $cnt <= NOTICES_PER_PAGE) {
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$cnt++;
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if ($cnt > NOTICES_PER_PAGE) {
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break;
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}
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$item = $this->newListItem($this->notice);
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$item->show();
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}
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common_element_end('ul');
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return $cnt;
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}
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/**
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* returns a new list item for the current notice
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*
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* Recipe (factory?) method; overridden by sub-classes to give
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* a different list item class.
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*
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* @param Notice $notice the current notice
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*
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* @return NoticeListItem a list item for displaying the notice
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*/
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function newListItem($notice)
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{
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return new NoticeListItem($notice);
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}
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}
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/**
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* widget for displaying a single notice
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*
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* This widget has the core smarts for showing a single notice: what to display,
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* where, and under which circumstances. Its key method is show(); this is a recipe
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* that calls all the other show*() methods to build up a single notice. The
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* ProfileNoticeListItem subclass, for example, overrides showAuthor() to skip
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* author info (since that's implicit by the data in the page).
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*
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* @category UI
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* @package Laconica
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* @author Evan Prodromou <evan@controlyourself.ca>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://laconi.ca/
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* @see NoticeList
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* @see ProfileNoticeListItem
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*/
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class NoticeListItem
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{
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/** The notice this item will show. */
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var $notice = null;
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/** The profile of the author of the notice, extracted once for convenience. */
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var $profile = null;
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/**
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* constructor
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*
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* Also initializes the profile attribute.
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*
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* @param Notice $notice The notice we'll display
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*/
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function __construct($notice)
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{
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$this->notice = $notice;
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$this->profile = $notice->getProfile();
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}
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/**
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* recipe function for displaying a single notice.
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*
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* This uses all the other methods to correctly display a notice. Override
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* it or one of the others to fine-tune the output.
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*
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* @return void
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*/
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function show()
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{
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$this->showStart();
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$this->showFaveForm();
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$this->showAuthor();
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$this->showContent();
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$this->startTimeSection();
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$this->showNoticeLink();
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$this->showNoticeSource();
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$this->showReplyTo();
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$this->showReplyLink();
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$this->showDeleteLink();
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$this->endTimeSection();
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$this->showEnd();
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}
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/**
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* start a single notice.
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*
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* @return void
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*/
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function showStart()
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{
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// XXX: RDFa
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// TODO: add notice_type class e.g., notice_video, notice_image
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common_element_start('li', array('class' => 'hentry notice',
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'id' => 'notice-' . $this->notice->id));
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}
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/**
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* show the "favorite" form
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*
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* @return void
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*/
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function showFaveForm()
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{
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$user = common_current_user();
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if ($user) {
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if ($user->hasFave($this->notice)) {
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common_disfavor_form($this->notice);
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} else {
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common_favor_form($this->notice);
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}
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}
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}
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/**
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* show the author of a notice
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*
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* By default, this shows the avatar and (linked) nickname of the author.
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*
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* @return void
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*/
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function showAuthor()
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{
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common_element_start('span', 'vcard author');
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common_element_start('a', array('href' => $this->profile->profileurl),
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'class' => 'url');
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$this->showAvatar();
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$this->showNickname();
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common_element_end('a');
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common_element_end('span');
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}
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/**
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* show the avatar of the notice's author
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*
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* This will use the default avatar if no avatar is assigned for the author.
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* It makes a link to the author's profile.
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*
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* @return void
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*/
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function showAvatar()
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{
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$avatar = $this->profile->getAvatar(AVATAR_STREAM_SIZE);
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common_element('img', array('src' => ($avatar) ?
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common_avatar_display_url($avatar) :
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common_default_avatar(AVATAR_STREAM_SIZE),
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'class' => 'avatar photo',
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'width' => AVATAR_STREAM_SIZE,
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'height' => AVATAR_STREAM_SIZE,
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'alt' =>
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($this->profile->fullname) ?
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$this->profile->fullname :
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$this->profile->nickname));
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}
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/**
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* show the nickname of the author
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*
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* Links to the author's profile page
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*
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* @return void
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*/
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function showNickname()
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{
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common_element('span', array('class' => 'nickname fn'),
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$this->profile->nickname);
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}
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/**
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* show the content of the notice
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*
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* Shows the content of the notice. This is pre-rendered for efficiency
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* at save time. Some very old notices might not be pre-rendered, so
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* they're rendered on the spot.
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*
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* @return void
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*/
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function showContent()
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{
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// FIXME: URL, image, video, audio
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common_element_start('p', array('class' => 'content entry-title'));
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if ($this->notice->rendered) {
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common_raw($this->notice->rendered);
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} else {
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// XXX: may be some uncooked notices in the DB,
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// we cook them right now. This should probably disappear in future
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// versions (>> 0.4.x)
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common_raw(common_render_content($this->notice->content, $this->notice));
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}
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common_element_end('p');
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}
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/**
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* show the "time" section of a notice
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*
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* This is the greyed-out section that appears beneath the content, including
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* links to delete or reply to the notice. Probably should be called something
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* else.
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*
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* @return void
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*/
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function startTimeSection()
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{
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common_element_start('p', 'time');
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}
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/**
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* show the link to the main page for the notice
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*
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* Displays a link to the page for a notice, with "relative" time. Tries to
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* get remote notice URLs correct, but doesn't always succeed.
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*
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* @return void
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*/
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function showNoticeLink()
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{
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$noticeurl = common_local_url('shownotice',
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array('notice' => $this->notice->id));
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// XXX: we need to figure this out better. Is this right?
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if (strcmp($this->notice->uri, $noticeurl) != 0 &&
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preg_match('/^http/', $this->notice->uri)) {
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$noticeurl = $this->notice->uri;
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}
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common_element_start('a', array('class' => 'permalink',
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'rel' => 'bookmark',
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'href' => $noticeurl));
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$dt = common_date_iso8601($this->notice->created);
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common_element('abbr', array('class' => 'published',
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'title' => $dt),
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common_date_string($this->notice->created));
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common_element_end('a');
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}
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/**
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* Show the source of the notice
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*
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* Either the name (and link) of the API client that posted the notice,
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* or one of other other channels.
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*
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* @return void
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*/
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function showNoticeSource()
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{
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if ($this->notice->source) {
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common_element('span', null, _(' from '));
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$source_name = _($this->notice->source);
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switch ($this->notice->source) {
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case 'web':
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case 'xmpp':
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case 'mail':
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case 'omb':
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case 'api':
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common_element('span', 'noticesource', $source_name);
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break;
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default:
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$ns = Notice_source::staticGet($this->notice->source);
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if ($ns) {
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common_element('a', array('href' => $ns->url),
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$ns->name);
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} else {
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common_element('span', 'noticesource', $source_name);
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}
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break;
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}
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}
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}
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/**
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* show link to notice this notice is a reply to
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*
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* If this notice is a reply, show a link to the notice it is replying to. The
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* heavy lifting for figuring out replies happens at save time.
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*
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* @return void
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*/
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function showReplyTo()
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{
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if ($this->notice->reply_to) {
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$replyurl = common_local_url('shownotice',
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array('notice' => $this->notice->reply_to));
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$this->elementStart('dl', 'response');
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$this->element('dt', null, _('To'));
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$this->elementStart('dd');
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$this->element('a', array('class' => 'inreplyto',
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'href' => $replyurl),
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'rel' => 'in-reply-to',
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_('in reply to'));
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$this->elementEnd('dd');
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$this->elementEnd('dl');
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}
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}
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/**
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* show a link to reply to the current notice
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*
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* Should either do the reply in the current notice form (if available), or
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* link out to the notice-posting form. A little flakey, doesn't always work.
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*
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* @return void
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*/
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function showReplyLink()
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{
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$reply_url = common_local_url('newnotice',
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array('replyto' => $this->profile->nickname));
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$reply_js =
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'return doreply("'.$this->profile->nickname.'",'.$this->notice->id.');';
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common_element_start('a',
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array('href' => $reply_url,
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'onclick' => $reply_js,
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'title' => _('reply'),
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'class' => 'replybutton'));
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common_raw(' →');
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common_element_end('a');
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}
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/**
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* if the user is the author, let them delete the notice
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*
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* @return void
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*/
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function showDeleteLink()
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{
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$user = common_current_user();
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if ($user && $this->notice->profile_id == $user->id) {
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$deleteurl = common_local_url('deletenotice',
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array('notice' => $this->notice->id));
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common_element_start('a', array('class' => 'deletenotice',
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'href' => $deleteurl,
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'title' => _('delete')));
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common_raw(' ×');
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common_element_end('a');
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}
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}
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/**
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* end the time section
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*
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* @return void
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*/
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function endTimeSection()
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{
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common_element_end('p');
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}
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/**
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* finish the notice
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*
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* Close the last elements in the notice list item
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*
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* @return void
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*/
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function showEnd()
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{
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common_element_end('li');
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}
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}
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