gnu-social/lib/moremenu.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2011, StatusNet, Inc.
*
* A menu with a More... button to show more elements
*
* 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 2011 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);
}
/**
* A menu with a More... element to show more items
*
* @category General
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class MoreMenu extends Menu
{
const SOFT_MAX = 5;
const HARD_MAX = 15;
/**
* Show a menu with a limited number of elements
*
* @param
*
* @return
*/
function show()
{
$items = $this->getItems();
$tag = $this->tag();
$menuID = null;
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$attrs = array('class' => 'nav');
if (!is_null($tag)) {
$menuID = 'nav_' . $tag;
$attrs['id'] = $menuID;
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}
if (Event::handle('StartNav', array($this, &$tag, &$items))) {
$this->out->elementStart('ul', $attrs);
$total = count($items);
if ($total <= self::SOFT_MAX + 1) {
$toShow = $items;
} else {
$toShow = array_slice($items, 0, self::SOFT_MAX);
}
foreach ($toShow as $item) {
list($actionName, $args, $label, $description, $id) = $item;
$this->item($actionName, $args, $label, $description, $id);
}
if ($total > self::SOFT_MAX + 1) {
$this->out->elementStart('li', array('class' => 'more_link'));
$this->out->element('a', array('href' => '#',
'onclick' => 'SN.U.showMoreMenuItems("'.$menuID.'"); return false;'),
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_('More ▼'));
$this->out->elementEnd('li');
$extended = array_slice($items, self::SOFT_MAX, self::HARD_MAX - self::SOFT_MAX);
foreach ($extended as $item) {
list($actionName, $args, $label, $description, $id) = $item;
$this->item($actionName, $args, $label, $description, $id, 'extended_menu');
}
if ($total > self::HARD_MAX) {
$seeAll = $this->seeAllItem();
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if (!empty($seeAll)) {
list($actionName, $args, $label, $description, $id) = $seeAll;
$this->item($actionName, $args, $label, $description, $id, 'extended_menu see_all');
}
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}
}
$this->out->elementEnd('ul');
Event::handle('EndNav', array($this, $tag, $items));
}
}
function seeAllItem()
{
return null;
}
}