forked from GNUsocial/gnu-social
137 lines
3.8 KiB
PHP
137 lines
3.8 KiB
PHP
<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Widget to display an alphabet menu
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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 Widget
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* @package StatusNet
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* @author Zach Copley <zach@status.net>
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* @copyright 2011 StatusNet, 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://status.net/
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*/
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if (!defined('STATUSNET') && !defined('LACONICA')) {
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exit(1);
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}
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/**
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* Outputs a fancy alphabet letter navigation menu
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*
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* @category Widget
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* @package StatusNet
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* @author Zach Copley <zach@status.net>
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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://status.net/
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*
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* @see HTMLOutputter
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*/
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class AlphaNav extends Widget
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{
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protected $action = null;
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protected $filters = array();
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/**
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* Prepare the widget for use
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*
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* @param Action $action the current action
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* @param boolean $numbers whether to output 0..9
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* @param Array $prepend array of filters to prepend
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* @param Array $append array of filters to append
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*/
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function __construct(
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$action = null,
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$numbers = false,
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$prepend = false,
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$append = false
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)
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{
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parent::__construct($action);
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$this->action = $action;
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if ($prepend) {
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$this->filters = array_merge($prepend, $this->filters);
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}
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if ($numbers) {
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$this->filters = array_merge($this->filters, range(0, 9));
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}
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if ($append) {
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$this->filters = array_merge($this->filters, $append);
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}
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$this->filters = array_merge($this->filters, range('A', 'Z'));
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}
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/**
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* Show the widget
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*
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* Emit the HTML for the widget, using the configured outputter.
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*
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* @return void
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*/
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function show()
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{
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$actionName = $this->action->trimmed('action');
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$this->action->elementStart('div', array('class' => 'alpha_nav'));
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for ($i = 0, $size = sizeof($this->filters); $i < $size; $i++) {
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$filter = $this->filters[$i];
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$classes = '';
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// Add some classes for styling
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if ($i == 0) {
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$classes .= 'first '; // first filter in the list
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} elseif ($i == $size - 1) {
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$classes .= 'last '; // last filter in the list
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}
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$href = common_local_url(
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$actionName,
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array('filter' => strtolower($filter))
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);
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$params = array('href' => $href);
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$current = $this->action->arg('filter');
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// Highlight the selected filter. If there is no selected
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// filter, highlight the first filter in the list
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if (empty($current) && $i == 0
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|| $current === strtolower($filter)) {
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$classes .= 'current ';
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}
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if (!empty($classes)) {
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$params['class'] = trim($classes);
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}
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$this->action->element('a', $params, $filter);
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}
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$this->action->elementEnd('div');
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}
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}
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