gnu-social/lib/ui/menu.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2011, StatusNet, Inc.
*
* Menu widget
*
* 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);
}
/**
* Superclass for menus
*
* @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 Menu extends Widget
{
var $action = null;
var $actionName = null;
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var $actionArgs = null;
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/**
* Construction
*
* @param Action $action current action, used for output
*/
function __construct(Action $action=null)
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{
parent::__construct($action);
$this->action = $action;
$this->actionName = $action->trimmed('action');
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$rtargs = $action->returnToArgs();
$this->actionArgs = $rtargs[1];
}
function getItems()
{
return array();
}
function tag()
{
return null;
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}
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function show()
{
$items = $this->getItems();
$tag = $this->tag();
$attrs = array('class' => 'nav');
if (!is_null($tag)) {
$attrs['id'] = 'nav_' . $tag;
}
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if (Event::handle('StartNav', array($this, &$tag, &$items))) {
$this->out->elementStart('ul', $attrs);
foreach ($items as $item) {
list($actionName, $args, $label, $description, $id) = $item;
$this->item($actionName, $args, $label, $description, $id);
}
$this->out->elementEnd('ul');
Event::handle('EndNav', array($this, $tag, $items));
}
}
function item($actionName, array $args, $label, $description, $id=null, $cls=null)
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{
if (empty($id)) {
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$id = $this->menuItemID($actionName, $args);
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}
$url = common_local_url($actionName, $args);
$this->out->menuItem($url,
$label,
$description,
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$this->isCurrent($actionName, $args),
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$id,
$cls);
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}
function isCurrent($actionName, array $args)
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{
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if ($actionName != $this->actionName) {
return false;
}
foreach ($this->actionArgs as $k => $v) {
if (!array_key_exists($k, $args) || $args[$k] != $v) {
return false;
}
}
return true;
}
function menuItemID($actionName, $args = null)
{
$id = sprintf('nav_%s', $actionName);
if (!is_null($args)) {
foreach ($args as $key => $value) {
$id .= '_' . $key . '_' . $value;
}
}
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return $id;
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}
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function submenu($label, $menu)
{
if (Event::handle('StartSubMenu', [$this->action, $menu, $label])) {
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$this->action->elementStart('li');
$this->action->element('h3', null, $label);
$menu->show();
$this->action->elementEnd('li');
Event::handle('EndSubMenu', [$this->action, $menu, $label]);
}
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}
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}