gnu-social/plugins/NoticeTitle/NoticeTitlePlugin.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* A plugin to add titles to notices
*
* 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 NoticeTitle
* @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('STATUSNET')) {
// This check helps protect against security problems;
// your code file can't be executed directly from the web.
exit(1);
}
define('NOTICE_TITLE_PLUGIN_VERSION', '0.1');
/**
* NoticeTitle plugin to add an optional title to notices.
*
* Stores notice titles in a secondary table, notice_title.
*
* @category NoticeTitle
* @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/
*/
class NoticeTitlePlugin extends Plugin
{
// By default, notice-title widget will be available to all users.
// With restricted on, only users who have been granted the
// "richedit" role get it.
public $restricted = false;
/**
* Database schema setup
*
* Add the notice_title helper table
*
* @see Schema
* @see ColumnDef
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onCheckSchema()
{
$schema = Schema::get();
// For storing titles for notices
$schema->ensureTable('notice_title', Notice_title::schemaDef());
return true;
}
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/**
* Provide plugin version information.
*
* This data is used when showing the version page.
*
* @param array &$versions array of version data arrays; see EVENTS.txt
*
* @return boolean hook value
*/
function onPluginVersion(&$versions)
{
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$url = 'http://status.net/wiki/Plugin:NoticeTitle';
$versions[] = array('name' => 'NoticeTitle',
'version' => NOTICE_TITLE_PLUGIN_VERSION,
'author' => 'Evan Prodromou',
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'homepage' => $url,
'rawdescription' =>
// TRANS: Plugin description.
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_m('Adds optional titles to notices.'));
return true;
}
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/**
* Show title entry when showing notice form
*
* @param Form $form Form being shown
*
* @return boolean hook value
*/
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function onStartShowNoticeFormData($form)
{
if ($this->isAllowedRichEdit()) {
$form->out->element('style',
null,
'label#notice_data-text-label { display: none }');
$form->out->element('input', array('type' => 'text',
'id' => 'notice_title',
'name' => 'notice_title',
'size' => 40,
'maxlength' => Notice_title::MAXCHARS));
}
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return true;
}
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/**
* Validate notice title before saving
*
* @param Action $action NewNoticeAction being executed
* @param integer &$authorId Author ID
* @param string &$text Text of the notice
* @param array &$options Options array
*
* @return boolean hook value
*/
function onStartNoticeSaveWeb($action, &$authorId, &$text, &$options)
{
$title = $action->trimmed('notice_title');
if (!empty($title) && $this->isAllowedRichEdit()) {
if (mb_strlen($title) > Notice_title::MAXCHARS) {
// TRANS: Exception thrown when a notice title is too long.
// TRANS: %d is the maximum number of characters allowed in a title (used for plural).
throw new Exception(sprintf(_m('The notice title is too long (maximum %d character).',
'The notice title is too long (maximum %d characters).',
Notice_title::MAXCHARS),
Notice_title::MAXCHARS));
}
}
return true;
}
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/**
* Save notice title after notice is saved
*
* @param Action $action NewNoticeAction being executed
* @param Notice $notice Notice that was saved
*
* @return boolean hook value
*/
function onEndNoticeSaveWeb($action, $notice)
{
if (!empty($notice)) {
$title = $action->trimmed('notice_title');
if (!empty($title) && $this->isAllowedRichEdit()) {
$nt = new Notice_title();
$nt->notice_id = $notice->id;
$nt->title = $title;
$nt->insert();
}
}
return true;
}
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/**
* Show the notice title in lists
*
* @param NoticeListItem $nli NoticeListItem being shown
*
* @return boolean hook value
*/
function onStartShowNoticeItem($nli)
{
$title = Notice_title::fromNotice($nli->notice);
if (!empty($title)) {
$nli->out->elementStart('h4', array('class' => 'notice_title'));
$nli->out->element('a', array('href' => $nli->notice->getUrl()), $title);
$nli->out->elementEnd('h4');
}
return true;
}
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/**
* Show the notice title in RSS output
*
* @param Notice $notice Notice being shown
* @param array &$entry array of values used for RSS output
*
* @return boolean hook value
*/
function onEndRssEntryArray($notice, &$entry)
{
$title = Notice_title::fromNotice($notice);
if (!empty($title)) {
$entry['title'] = $title;
}
return true;
}
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/**
* Show the notice title in Atom output
*
* @param Notice &$notice Notice being shown
* @param XMLStringer &$xs output context
* @param string &$output string to be output as title
*
* @return boolean hook value
*/
function onEndNoticeAsActivity($notice, &$activity)
{
$title = Notice_title::fromNotice($notice);
if (!empty($title)) {
foreach ($activity->objects as $obj) {
if ($obj->id == $notice->uri) {
$obj->title = $title;
break;
}
}
}
return true;
}
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/**
* Remove title when the notice is deleted
*
* @param Notice $notice Notice being deleted
*
* @return boolean hook value
*/
function onNoticeDeleteRelated($notice)
{
$nt = Notice_title::getKV('notice_id', $notice->id);
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if (!empty($nt)) {
$nt->delete();
}
return true;
}
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/**
* If a notice has a title, show it in the <title> element
*
* @param Action $action Action being executed
*
* @return boolean hook value
*/
function onStartShowHeadTitle($action)
{
$actionName = $action->trimmed('action');
if ($actionName == 'shownotice') {
$title = Notice_title::fromNotice($action->notice);
if (!empty($title)) {
$action->element('title', null,
// TRANS: Page title. %1$s is the title, %2$s is the site name.
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sprintf(_m("%1\$s - %2\$s"),
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$title,
common_config('site', 'name')));
}
}
return true;
}
/**
* If a notice has a title, show it in the <h1> element
*
* @param Action $action Action being executed
*
* @return boolean hook value
*/
function onStartShowPageTitle($action)
{
$actionName = $action->trimmed('action');
if ($actionName == 'shownotice') {
$title = Notice_title::fromNotice($action->notice);
if (!empty($title)) {
$action->element('h1', null, $title);
return false;
}
}
return true;
}
/**
* Does the current user have permission to use the notice-title widget?
* Always true unless the plugin's "restricted" setting is on, in which
* case it's limited to users with the "richedit" role.
*
* @todo FIXME: make that more sanely configurable :)
*
* @return boolean
*/
private function isAllowedRichEdit()
{
if ($this->restricted) {
$user = common_current_user();
return !empty($user) && $user->hasRole('richedit');
} else {
return true;
}
}
}