gnu-social/lib/noticelistitem.php

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2011-03-09 03:48:16 +00:00
<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* An item in a notice list
*
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* PHP version 5
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Widget
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('GNUSOCIAL')) { exit(1); }
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/**
* widget for displaying a single notice
*
* This widget has the core smarts for showing a single notice: what to display,
* where, and under which circumstances. Its key method is show(); this is a recipe
* that calls all the other show*() methods to build up a single notice. The
* ProfileNoticeListItem subclass, for example, overrides showAuthor() to skip
* author info (since that's implicit by the data in the page).
*
* @category UI
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
* @see NoticeList
* @see ProfileNoticeListItem
*/
class NoticeListItem extends Widget
{
/** The notice this item will show. */
var $notice = null;
/** The notice that was repeated. */
var $repeat = null;
/** The profile of the author of the notice, extracted once for convenience. */
var $profile = null;
protected $addressees = true;
protected $attachments = true;
protected $id_prefix = null;
protected $options = true;
protected $maxchars = 0; // if <= 0 it means use full posts
protected $item_tag = 'li';
protected $pa = null;
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/**
* constructor
*
* Also initializes the profile attribute.
*
* @param Notice $notice The notice we'll display
*/
function __construct(Notice $notice, Action $out=null, array $prefs=array())
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{
parent::__construct($out);
if (!empty($notice->repeat_of)) {
$original = Notice::getKV('id', $notice->repeat_of);
if (!$original instanceof Notice) { // could have been deleted
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$this->notice = $notice;
} else {
$this->notice = $original;
$this->repeat = $notice;
}
} else {
$this->notice = $notice;
}
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$this->profile = $this->notice->getProfile();
// integer preferences
foreach(array('maxchars') as $key) {
if (array_key_exists($key, $prefs)) {
$this->$key = (int)$prefs[$key];
}
}
// boolean preferences
foreach(array('addressees', 'attachments', 'options') as $key) {
if (array_key_exists($key, $prefs)) {
$this->$key = (bool)$prefs[$key];
}
}
// string preferences
foreach(array('id_prefix', 'item_tag') as $key) {
if (array_key_exists($key, $prefs)) {
$this->$key = $prefs[$key];
}
}
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}
/**
* recipe function for displaying a single notice.
*
* This uses all the other methods to correctly display a notice. Override
* it or one of the others to fine-tune the output.
*
* @return void
*/
function show()
{
if (empty($this->notice)) {
common_log(LOG_WARNING, "Trying to show missing notice; skipping.");
return;
} else if (empty($this->profile)) {
common_log(LOG_WARNING, "Trying to show missing profile (" . $this->notice->profile_id . "); skipping.");
return;
}
$this->showStart();
if (Event::handle('StartShowNoticeItem', array($this))) {
$this->showNotice();
Event::handle('EndShowNoticeItem', array($this));
}
$this->showEnd();
}
function showNotice()
{
if (Event::handle('StartShowNoticeItemNotice', array($this))) {
$this->showNoticeHeaders();
$this->showContent();
$this->showNoticeFooter();
Event::handle('EndShowNoticeItemNotice', array($this));
}
}
function showNoticeHeaders()
{
$this->elementStart('section', array('class'=>'notice-headers'));
$this->showNoticeTitle();
$this->showAuthor();
if (!empty($this->notice->reply_to) || count($this->getProfileAddressees()) > 0) {
$this->elementStart('div', array('class' => 'parents'));
if (!empty($this->notice->reply_to)) { $this->showParent(); }
if ($this->addressees) { $this->showAddressees(); }
$this->elementEnd('div');
}
$this->elementEnd('section');
}
function showNoticeFooter()
{
$this->elementStart('footer');
$this->showNoticeInfo();
if ($this->options) { $this->showNoticeOptions(); }
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if ($this->attachments) { $this->showNoticeAttachments(); }
$this->elementEnd('footer');
}
function showNoticeTitle()
{
if (Event::handle('StartShowNoticeTitle', array($this))) {
$this->element('a', array('href' => $this->notice->getUrl(),
'class' => 'notice-title'),
$this->notice->getTitle());
Event::handle('EndShowNoticeTitle', array($this));
}
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}
function showNoticeInfo()
{
if (Event::handle('StartShowNoticeInfo', array($this))) {
$this->showNoticeLink();
$this->showNoticeSource();
$this->showNoticeLocation();
$this->showPermalink();
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Event::handle('EndShowNoticeInfo', array($this));
}
}
function showNoticeOptions()
{
if (Event::handle('StartShowNoticeOptions', array($this))) {
$user = common_current_user();
if ($user) {
$this->out->elementStart('div', 'notice-options');
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if (Event::handle('StartShowNoticeOptionItems', array($this))) {
$this->showReplyLink();
$this->showDeleteLink();
Event::handle('EndShowNoticeOptionItems', array($this));
}
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$this->out->elementEnd('div');
}
Event::handle('EndShowNoticeOptions', array($this));
}
}
/**
* start a single notice.
*
* @return void
*/
function showStart()
{
if (Event::handle('StartOpenNoticeListItemElement', array($this))) {
$id = (empty($this->repeat)) ? $this->notice->id : $this->repeat->id;
$class = 'h-entry notice';
if ($this->notice->scope != 0 && $this->notice->scope != 1) {
$class .= ' limited-scope';
}
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if (!empty($this->notice->source)) {
$class .= ' notice-source-'.$this->notice->source;
}
$id_prefix = (strlen($this->id_prefix) ? $this->id_prefix . '-' : '');
$this->out->elementStart($this->item_tag, array('class' => $class,
'id' => "${id_prefix}notice-${id}"));
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Event::handle('EndOpenNoticeListItemElement', array($this));
}
}
/**
* show the author of a notice
*
* By default, this shows the avatar and (linked) nickname of the author.
*
* @return void
*/
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function showAuthor()
{
$attrs = array('href' => $this->profile->profileurl,
'class' => 'h-card',
'title' => $this->profile->getNickname());
if(empty($this->repeat)) { $attrs['class'] .= ' p-author'; }
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if (Event::handle('StartShowNoticeItemAuthor', array($this->profile, $this->out, &$attrs))) {
$this->out->elementStart('a', $attrs);
$this->showAvatar($this->profile);
$this->out->text($this->profile->getStreamName());
$this->out->elementEnd('a');
Event::handle('EndShowNoticeItemAuthor', array($this->profile, $this->out));
}
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}
function showParent()
{
$this->out->element(
'a',
array(
'href' => $this->notice->getParent()->getUrl(),
'class' => 'u-in-reply-to',
'rel' => 'in-reply-to'
),
'in reply to'
);
}
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function showAddressees()
{
$pa = $this->getProfileAddressees();
if (!empty($pa)) {
$this->out->elementStart('ul', 'addressees');
$first = true;
foreach ($pa as $addr) {
$this->out->elementStart('li', 'h-card');
$text = $addr['text'];
unset($addr['text']);
$this->out->element('a', $addr, $text);
$this->out->elementEnd('li');
}
$this->out->elementEnd('ul', 'addressees');
}
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}
function getProfileAddressees()
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{
if($this->pa) { return $this->pa; }
$this->pa = array();
$attentions = $this->getReplyProfiles();
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foreach ($attentions as $attn) {
$class = $attn->isGroup() ? 'group' : 'account';
$this->pa[] = array('href' => $attn->profileurl,
'title' => $attn->getNickname(),
'class' => "addressee {$class}",
'text' => $attn->getStreamName());
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}
return $this->pa;
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}
function getReplyProfiles()
{
return $this->notice->getReplyProfiles();
}
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/**
* show the nickname of the author
*
* Links to the author's profile page
*
* @return void
*/
function showNickname()
{
$this->out->raw('<span class="p-name">' .
htmlspecialchars($this->profile->getNickname()) .
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'</span>');
}
/**
* show the content of the notice
*
* Shows the content of the notice. This is pre-rendered for efficiency
* at save time. Some very old notices might not be pre-rendered, so
* they're rendered on the spot.
*
* @return void
*/
function showContent()
{
// FIXME: URL, image, video, audio
$this->out->elementStart('article', array('class' => 'e-content'));
if (Event::handle('StartShowNoticeContent', array($this->notice, $this->out, $this->out->getScoped()))) {
if ($this->maxchars > 0 && mb_strlen($this->notice->content) > $this->maxchars) {
$this->out->text(mb_substr($this->notice->content, 0, $this->maxchars) . '[…]');
} elseif ($this->notice->rendered) {
$this->out->raw($this->notice->rendered);
} else {
// XXX: may be some uncooked notices in the DB,
// we cook them right now. This should probably disappear in future
// versions (>> 0.4.x)
$this->out->raw(common_render_content($this->notice->content, $this->notice));
}
Event::handle('EndShowNoticeContent', array($this->notice, $this->out, $this->out->getScoped()));
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}
$this->out->elementEnd('article');
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}
function showNoticeAttachments() {
if (common_config('attachments', 'show_thumbs')) {
$al = new InlineAttachmentList($this->notice, $this->out);
$al->show();
}
}
/**
* show the link to the main page for the notice
*
* Displays a local link to the rendered notice, with "relative" time.
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*
* @return void
*/
function showNoticeLink()
{
$this->out->elementStart('a', array('rel' => 'bookmark',
'class' => 'timestamp',
'href' => Conversation::getUrlFromNotice($this->notice)));
$this->out->element('time', array('class' => 'dt-published',
'datetime' => common_date_iso8601($this->notice->created),
// TRANS: Timestamp title (tooltip text) for NoticeListItem
'title' => common_exact_date($this->notice->created)),
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common_date_string($this->notice->created));
$this->out->elementEnd('a');
}
/**
* show the notice location
*
* shows the notice location in the correct language.
*
* If an URL is available, makes a link. Otherwise, just a span.
*
* @return void
*/
function showNoticeLocation()
{
return;
try {
$location = Notice_location::locFromStored($this->notice);
} catch (NoResultException $e) {
return;
} catch (ServerException $e) {
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return;
}
$name = $location->getName();
$lat = $location->lat;
$lon = $location->lon;
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$latlon = (!empty($lat) && !empty($lon)) ? $lat.';'.$lon : '';
if (empty($name)) {
$latdms = $this->decimalDegreesToDMS(abs($lat));
$londms = $this->decimalDegreesToDMS(abs($lon));
// TRANS: Used in coordinates as abbreviation of north.
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$north = _('N');
// TRANS: Used in coordinates as abbreviation of south.
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$south = _('S');
// TRANS: Used in coordinates as abbreviation of east.
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$east = _('E');
// TRANS: Used in coordinates as abbreviation of west.
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$west = _('W');
$name = sprintf(
// TRANS: Coordinates message.
// TRANS: %1$s is lattitude degrees, %2$s is lattitude minutes,
// TRANS: %3$s is lattitude seconds, %4$s is N (north) or S (south) depending on lattitude,
// TRANS: %5$s is longitude degrees, %6$s is longitude minutes,
// TRANS: %7$s is longitude seconds, %8$s is E (east) or W (west) depending on longitude,
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_('%1$u°%2$u\'%3$u"%4$s %5$u°%6$u\'%7$u"%8$s'),
$latdms['deg'],$latdms['min'], $latdms['sec'],($lat>0? $north:$south),
$londms['deg'],$londms['min'], $londms['sec'],($lon>0? $east:$west));
}
$url = $location->getUrl();
$this->out->text(' ');
$this->out->elementStart('span', array('class' => 'location'));
// TRANS: Followed by geo location.
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$this->out->text(_('at'));
$this->out->text(' ');
if (empty($url)) {
$this->out->element('abbr', array('class' => 'geo',
'title' => $latlon),
$name);
} else {
$xstr = new XMLStringer(false);
$xstr->elementStart('a', array('href' => $url,
'rel' => 'external'));
$xstr->element('abbr', array('class' => 'geo',
'title' => $latlon),
$name);
$xstr->elementEnd('a');
$this->out->raw($xstr->getString());
}
$this->out->elementEnd('span');
}
/**
* @param number $dec decimal degrees
* @return array split into 'deg', 'min', and 'sec'
*/
function decimalDegreesToDMS($dec)
{
$deg = intval($dec);
$tempma = abs($dec) - abs($deg);
$tempma = $tempma * 3600;
$min = floor($tempma / 60);
$sec = $tempma - ($min*60);
return array("deg"=>$deg,"min"=>$min,"sec"=>$sec);
}
/**
* Show the source of the notice
*
* Either the name (and link) of the API client that posted the notice,
* or one of other other channels.
*
* @return void
*/
function showNoticeSource()
{
$ns = $this->notice->getSource();
if (!$ns instanceof Notice_source) {
return false;
}
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// TRANS: A possible notice source (web interface).
$source_name = (empty($ns->name)) ? ($ns->code ? _($ns->code) : _m('SOURCE','web')) : _($ns->name);
$this->out->text(' ');
$this->out->elementStart('span', 'source');
// @todo FIXME: probably i18n issue. If "from" is followed by text, that should be a parameter to "from" (from %s).
// TRANS: Followed by notice source.
$this->out->text(_('from'));
$this->out->text(' ');
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$name = $source_name;
$url = $ns->url;
$title = null;
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if (Event::handle('StartNoticeSourceLink', array($this->notice, &$name, &$url, &$title))) {
$name = $source_name;
$url = $ns->url;
}
Event::handle('EndNoticeSourceLink', array($this->notice, &$name, &$url, &$title));
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// if $ns->name and $ns->url are populated we have
// configured a source attr somewhere
if (!empty($name) && !empty($url)) {
$this->out->elementStart('span', 'device');
$attrs = array(
'href' => $url,
'rel' => 'external'
);
if (!empty($title)) {
$attrs['title'] = $title;
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}
$this->out->element('a', $attrs, $name);
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$this->out->elementEnd('span');
} else {
$this->out->element('span', 'device', $name);
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}
$this->out->elementEnd('span');
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}
/**
* show link to single-notice view for this notice item
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*
* A permalink that goes to this specific object and nothing else
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*
* @return void
*/
function showPermalink()
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{
$class = 'permalink u-url';
if (!$this->notice->isLocal()) {
$class .= ' external';
}
try {
$this->out->element('a',
array('href' => $this->notice->getUrl(),
'class' => $class),
// TRANS: Addition in notice list item for single-notice view.
_('permalink'));
} catch (InvalidUrlException $e) {
// no permalink available
}
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}
/**
* show a link to reply to the current notice
*
* Should either do the reply in the current notice form (if available), or
* link out to the notice-posting form. A little flakey, doesn't always work.
*
* @return void
*/
function showReplyLink()
{
if (common_logged_in()) {
$this->out->text(' ');
$reply_url = common_local_url('newnotice',
array('replyto' => $this->profile->getNickname(), 'inreplyto' => $this->notice->id));
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$this->out->elementStart('a', array('href' => $reply_url,
'class' => 'notice_reply',
// TRANS: Link title in notice list item to reply to a notice.
'title' => _('Reply to this notice.')));
// TRANS: Link text in notice list item to reply to a notice.
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$this->out->text(_('Reply'));
$this->out->text(' ');
$this->out->element('span', 'notice_id', $this->notice->id);
$this->out->elementEnd('a');
}
}
/**
* if the user is the author, let them delete the notice
*
* @return void
*/
function showDeleteLink()
{
$user = common_current_user();
$todel = (empty($this->repeat)) ? $this->notice : $this->repeat;
if (!empty($user) &&
($todel->profile_id == $user->id || $user->hasRight(Right::DELETEOTHERSNOTICE))) {
$this->out->text(' ');
$deleteurl = common_local_url('deletenotice',
array('notice' => $todel->id));
$this->out->element('a', array('href' => $deleteurl,
'class' => 'notice_delete popup',
// TRANS: Link title in notice list item to delete a notice.
'title' => _('Delete this notice from the timeline.')),
// TRANS: Link text in notice list item to delete a notice.
_('Delete'));
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}
}
/**
* finish the notice
*
* Close the last elements in the notice list item
*
* @return void
*/
function showEnd()
{
if (Event::handle('StartCloseNoticeListItemElement', array($this))) {
$this->out->elementEnd('li');
Event::handle('EndCloseNoticeListItemElement', array($this));
}
}
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/**
* Get the notice in question
*
* For hooks, etc., this may be useful
*
* @return Notice The notice we're showing
*/
function getNotice()
{
return $this->notice;
}
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}