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423 lines
10 KiB
423 lines
10 KiB
5 years ago
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<?php
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if (!defined('__TYPECHO_ROOT_DIR__')) exit;
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/**
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* 分类输出
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*
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* @category typecho
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* @package Widget
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* @copyright Copyright (c) 2008 Typecho team (http://www.typecho.org)
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* @license GNU General Public License 2.0
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* @version $Id$
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*/
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/**
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* 分类输出组件
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*
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* @category typecho
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* @package Widget
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* @copyright Copyright (c) 2008 Typecho team (http://www.typecho.org)
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* @license GNU General Public License 2.0
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*/
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class Widget_Metas_Category_List extends Widget_Abstract_Metas
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{
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/**
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* 树状分类结构
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*
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* @var array
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* @access private
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*/
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private $_treeViewCategories = array();
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/**
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* _categoryOptions
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*
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* @var mixed
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* @access private
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*/
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private $_categoryOptions = NULL;
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/**
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* 顶层分类
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*
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* @var array
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* @access private
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*/
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private $_top = array();
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/**
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* 所有分类哈希表
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*
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* @var array
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* @access private
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*/
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private $_map = array();
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/**
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* 顺序流
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*
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* @var array
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* @access private
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*/
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private $_orders = array();
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/**
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* 所有子节点列表
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*
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* @var array
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* @access private
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*/
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private $_children = array();
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/**
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* 所有父节点列表
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*
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* @var array
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* @access private
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*/
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private $_parents = array();
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/**
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* 构造函数,初始化组件
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*
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* @access public
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* @param mixed $request request对象
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* @param mixed $response response对象
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* @param mixed $params 参数列表
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*/
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public function __construct($request, $response, $params = NULL)
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{
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parent::__construct($request, $response, $params);
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$this->parameter->setDefault('ignore=0¤t=');
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$select = $this->select()->where('type = ?', 'category');
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if ($this->parameter->ignore) {
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$select->where('mid <> ?', $this->parameter->ignore);
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}
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$categories = $this->db->fetchAll($select->order('table.metas.order', Typecho_Db::SORT_ASC));
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foreach ($categories as $category) {
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$category['levels'] = 0;
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$this->_map[$category['mid']] = $category;
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}
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// 读取数据
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foreach ($this->_map as $mid => $category) {
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$parent = $category['parent'];
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if (0 != $parent && isset($this->_map[$parent])) {
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$this->_treeViewCategories[$parent][] = $mid;
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} else {
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$this->_top[] = $mid;
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}
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}
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// 预处理深度
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$this->levelWalkCallback($this->_top);
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$this->_map = array_map(array($this, 'filter'), $this->_map);
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}
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/**
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* 列出分类回调
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*
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* @access private
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*/
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private function treeViewCategoriesCallback()
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{
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$categoryOptions = $this->_categoryOptions;
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if (function_exists('treeViewCategories')) {
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return treeViewCategories($this, $categoryOptions);
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}
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$classes = array();
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if ($categoryOptions->itemClass) {
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$classes[] = $categoryOptions->itemClass;
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}
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$classes[] = 'category-level-' . $this->levels;
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echo '<' . $categoryOptions->itemTag . ' class="'
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. implode(' ', $classes);
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if ($this->levels > 0) {
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echo ' category-child';
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$this->levelsAlt(' category-level-odd', ' category-level-even');
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} else {
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echo ' category-parent';
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}
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if ($this->mid == $this->parameter->current) {
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echo ' category-active';
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} else if (isset($this->_children[$this->mid]) && in_array($this->parameter->current, $this->_children[$this->mid])) {
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echo ' category-parent-active';
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}
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echo '"><a href="' . $this->permalink . '">' . $this->name . '</a>';
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if ($categoryOptions->showCount) {
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printf($categoryOptions->countTemplate, intval($this->count));
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}
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if ($categoryOptions->showFeed) {
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printf($categoryOptions->feedTemplate, $this->feedUrl);
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}
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if ($this->children) {
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$this->treeViewCategories();
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}
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echo '</' . $categoryOptions->itemTag . '>';
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}
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/**
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* 预处理分类迭代
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*
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* @param array $categories
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* @param array $parents
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* @access private
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*/
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private function levelWalkCallback(array $categories, $parents = array())
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{
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foreach ($parents as $parent) {
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if (!isset($this->_children[$parent])) {
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$this->_children[$parent] = array();
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}
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$this->_children[$parent] = array_merge($this->_children[$parent], $categories);
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}
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foreach ($categories as $mid) {
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$this->_orders[] = $mid;
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$parent = $this->_map[$mid]['parent'];
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if (0 != $parent && isset($this->_map[$parent])) {
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$levels = $this->_map[$parent]['levels'] + 1;
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$this->_map[$mid]['levels'] = $levels;
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}
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$this->_parents[$mid] = $parents;
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if (!empty($this->_treeViewCategories[$mid])) {
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$new = $parents;
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$new[] = $mid;
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$this->levelWalkCallback($this->_treeViewCategories[$mid], $new);
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}
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}
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}
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/**
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* 子评论
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*
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* @access protected
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* @return array
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*/
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protected function ___children()
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{
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return isset($this->_treeViewCategories[$this->mid]) ?
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$this->getCategories($this->_treeViewCategories[$this->mid]) : array();
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}
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/**
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* 执行函数
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*
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* @access public
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* @return void
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*/
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public function execute()
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{
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$this->stack = $this->getCategories($this->_orders);
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}
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/**
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* treeViewCategories
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*
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* @access public
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* @return void
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*/
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public function treeViewCategories()
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{
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$children = $this->children;
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if ($children) {
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//缓存变量便于还原
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$tmp = $this->row;
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$this->sequence ++;
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//在子评论之前输出
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echo '<' . $this->_categoryOptions->wrapTag . (empty($this->_categoryOptions->wrapClass)
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? '' : ' class="' . $this->_categoryOptions->wrapClass . '"') . '>';
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foreach ($children as $child) {
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$this->row = $child;
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$this->treeViewCategoriesCallback();
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$this->row = $tmp;
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}
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//在子评论之后输出
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echo '</' . $this->_categoryOptions->wrapTag . '>';
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$this->sequence --;
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}
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}
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/**
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* treeViewCategories
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*
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* @param $categoryOptions 输出选项
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* @access public
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* @return void
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*/
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public function listCategories($categoryOptions = NULL)
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{
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//初始化一些变量
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$this->_categoryOptions = Typecho_Config::factory($categoryOptions);
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$this->_categoryOptions->setDefault(array(
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'wrapTag' => 'ul',
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'wrapClass' => '',
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'itemTag' => 'li',
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'itemClass' => '',
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'showCount' => false,
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'showFeed' => false,
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'countTemplate' => '(%d)',
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'feedTemplate' => '<a href="%s">RSS</a>'
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));
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// 插件插件接口
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$this->pluginHandle()->trigger($plugged)->listCategories($this->_categoryOptions, $this);
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if (!$plugged) {
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$this->stack = $this->getCategories($this->_top);
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if ($this->have()) {
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echo '<' . $this->_categoryOptions->wrapTag . (empty($this->_categoryOptions->wrapClass)
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? '' : ' class="' . $this->_categoryOptions->wrapClass . '"') . '>';
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while ($this->next()) {
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$this->treeViewCategoriesCallback();
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}
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echo '</' . $this->_categoryOptions->wrapTag . '>';
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}
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$this->stack = $this->_map;
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}
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}
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/**
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* 根据深度余数输出
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*
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* @access public
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* @return void
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*/
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public function levelsAlt()
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{
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$args = func_get_args();
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$num = func_num_args();
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$split = $this->levels % $num;
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echo $args[(0 == $split ? $num : $split) -1];
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}
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/**
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* 将每行的值压入堆栈
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*
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* @access public
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* @param array $value 每行的值
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* @return array
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*/
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public function filter(array $value)
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{
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$value['directory'] = $this->getAllParentsSlug($value['mid']);
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$value['directory'][] = $value['slug'];
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$tmpCategoryTree = $value['directory'];
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$value['directory'] = implode('/', array_map('urlencode', $value['directory']));
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$value = parent::filter($value);
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$value['directory'] = $tmpCategoryTree;
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return $value;
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}
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/**
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* 获取某个分类下的所有子节点
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*
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* @param mixed $mid
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* @access public
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* @return array
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*/
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public function getAllChildren($mid)
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{
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return isset($this->_children[$mid]) ? $this->_children[$mid] : array();
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}
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/**
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* 获取某个分类所有父级节点
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*
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* @param mixed $mid
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* @access public
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* @return array
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*/
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public function getAllParents($mid)
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{
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$parents = array();
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if (isset($this->_parents[$mid])) {
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foreach ($this->_parents[$mid] as $parent) {
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$parents[] = $this->_map[$parent];
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}
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}
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return $parents;
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}
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/**
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* 获取某个分类所有父级节点缩略名
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*
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* @param mixed $mid
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* @access public
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* @return array
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*/
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public function getAllParentsSlug($mid)
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{
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$parents = array();
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if (isset($this->_parents[$mid])) {
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foreach ($this->_parents[$mid] as $parent) {
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$parents[] = $this->_map[$parent]['slug'];
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}
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}
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return $parents;
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}
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/**
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* 获取单个分类
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*
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* @param integer $mid
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* @access public
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* @return mixed
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*/
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public function getCategory($mid)
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{
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return isset($this->_map[$mid]) ? $this->_map[$mid] : NULL;
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}
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/**
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* 获取多个分类
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*
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* @param mixed $mids
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* @access public
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* @return array
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*/
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public function getCategories($mids)
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{
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$result = array();
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if (!empty($mids)) {
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foreach ($mids as $mid) {
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$result[] = $this->_map[$mid];
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}
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}
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return $result;
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}
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}
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