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259
MenuTree_hongweipeng/Plugin.php
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259
MenuTree_hongweipeng/Plugin.php
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<?php
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if (!defined('__TYPECHO_ROOT_DIR__')) exit(0);
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/**
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* 文章目录树
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*
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* @package MenuTree
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* @author hongweipeng
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* @version 0.8.1
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* @link https://www.hongweipeng.com
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*/
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class MenuTree_Plugin implements Typecho_Plugin_Interface {
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public static $v = '0.8.1';
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/**
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* 索引ID
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*/
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public static $id = 1;
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/**
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* 目录树
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*/
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public static $tree = array();
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/**
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* 激活插件方法,如果激活失败,直接抛出异常
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*
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* @access public
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* @return void
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* @throws Typecho_Plugin_Exception
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*/
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public static function activate() {
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Typecho_Plugin::factory('Widget_Abstract_Contents')->contentEx = array(__CLASS__, 'parse');
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Typecho_Plugin::factory('Widget_Archive')->header = array(__CLASS__, 'header');
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Typecho_Plugin::factory('Widget_Archive')->footer = array(__CLASS__, 'footer');
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}
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/**
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* 禁用插件方法,如果禁用失败,直接抛出异常
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*
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* @static
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* @access public
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* @return void
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* @throws Typecho_Plugin_Exception
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*/
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public static function deactivate(){}
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/**
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* 获取插件配置面板
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*
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* @access public
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* @param Typecho_Widget_Helper_Form $form 配置面板
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* @return void
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*/
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public static function config(Typecho_Widget_Helper_Form $form){
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$jq_import = new Typecho_Widget_Helper_Form_Element_Radio('jq_import', array(
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0 => _t('不引入'),
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1 => _t('引入')
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), 1, _t('是否引入jQuery'), _t('此插件需要jQuery，如已有选择不引入避免引入多余jQuery'));
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$form->addInput($jq_import->addRule('enum', _t('必须选择一个模式'), array(0, 1)));
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$hidden_set = new Typecho_Widget_Helper_Form_Element_Radio('hidden_no_title', array(
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0 => _t('否'),
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1 => _t('是')
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), 0, _t('文章无标题时隐藏'), _t('文章中无h1、h2、h3...时隐藏'));
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$form->addInput($hidden_set->addRule('enum', _t('必须选择一个模式'), array(0, 1)));
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$anchor_offset = new Typecho_Widget_Helper_Form_Element_Text('anchor_offset', NULL, '0', _t('标题链接偏移量(单位 em)'), _t('填入数字，支持负数'));
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$form->addInput($anchor_offset);
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}
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/**
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* 个人用户的配置面板
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*
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* @access public
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* @param Typecho_Widget_Helper_Form $form
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* @return void
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*/
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public static function personalConfig(Typecho_Widget_Helper_Form $form){}
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/**
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* 插件实现方法
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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 static function render() {
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}
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/**
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* 解析
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*
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* @access public
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* @param array $matches 解析值
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* @return string
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*/
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public static function parseCallback( $match ) {
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$parent = &self::$tree;
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$html = $match[0];
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$n = $match[1];
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$menu = array(
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'num' => $n,
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'title' => trim( strip_tags( $html ) ),
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'id' => 'menu_index_' . self::$id,
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'sub' => array()
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);
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$current = array();
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if( $parent ) {
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$current = &$parent[ count( $parent ) - 1 ];
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}
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// 根
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if( ! $parent || ( isset( $current['num'] ) && $n <= $current['num'] ) ) {
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$parent[] = $menu;
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} else {
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while( is_array( $current[ 'sub' ] ) ) {
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// 父子关系
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if( $current['num'] == $n - 1 ) {
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$current[ 'sub' ][] = $menu;
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break;
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}
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// 后代关系，并存在子菜单
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elseif( $current['num'] < $n && $current[ 'sub' ] ) {
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$current = &$current['sub'][ count( $current['sub'] ) - 1 ];
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}
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// 后代关系，不存在子菜单
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else {
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for( $i = 0; $i < $n - $current['num']; $i++ ) {
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$current['sub'][] = array(
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'num' => $current['num'] + 1,
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'sub' => array()
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);
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$current = &$current['sub'][0];
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}
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$current['sub'][] = $menu;
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break;
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}
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}
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}
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self::$id++;
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return "<span id=\"{$menu['id']}\" class=\"anchor\" name=\"{$menu['id']}\"></span>" . $html;
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}
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/**
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* 构建目录树，生成索引
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*
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* @access public
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* @return string
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*/
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public static function buildMenuHtml( $tree, $include = true ) {
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$menuHtml = '';
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foreach( $tree as $menu ) {
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if( ! isset( $menu['id'] ) && $menu['sub'] ) {
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$menuHtml .= self::buildMenuHtml( $menu['sub'], false );
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} else {
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$title = htmlspecialchars($menu['title'], ENT_QUOTES);
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$li = "<li><a data-scroll href=\"#{$menu['id']}\" title=\"{$title}\">{$title}</a>";
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if ($menu['sub']) {
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$li .= self::buildMenuHtml( $menu['sub'] );
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}
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$li .= "</li>";
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$menuHtml .= $li;
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}
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}
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if( $include ) {
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$menuHtml = '<ul>' . $menuHtml . '</ul>';
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}
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return $menuHtml;
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}
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/**
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* 判断是否是内容页，避免主页加载插件
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*/
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public static function is_content($widget = null) {
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static $is_content = null;
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if (!$widget) {
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$widget = Typecho_Widget::widget('Widget_Archive');
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}
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if($is_content === null) {
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$is_content = !($widget->is('index') || $widget->is('search') || $widget->is('date') || $widget->is('category') || $widget->is('author'));
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}
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return $is_content;
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}
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/**
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* 插件实现方法
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*
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* @access public
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* @return string
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*/
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public static function parse( $html, $widget, $lastResult ) {
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$html = empty( $lastResult ) ? $html : $lastResult;
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if (!self::is_content($widget)) {
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return $html;
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}
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$html = preg_replace_callback( '/<h([1-6])[^>]*>.*?<\/h\1>/s', array( 'MenuTree_Plugin', 'parseCallback' ), $html );
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return $html;
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}
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/**
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*为header添加css文件
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*@return void
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*/
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public static function header() {
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if (!self::is_content()) {
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return;
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}
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$cssUrl = Helper::options()->pluginUrl . '/MenuTree/menutree.css?v=' . self::$v;
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$anchor_offset = Helper::options()->plugin('MenuTree')->anchor_offset;
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echo <<<EOF
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<link rel="stylesheet" type="text/css" href="{$cssUrl}" />
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<style>
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span.anchor {
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display: block;
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position: relative;
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top: {$anchor_offset}em;
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visibility: hidden;
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}
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</style>
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EOF;
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}
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/**
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*为footer添加js文件
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*@return void
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*/
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public static function footer() {
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if (!self::is_content()) {
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return;
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}
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if (Helper::options()->plugin('MenuTree')->jq_import) {
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echo '<script src="//cdn.bootcss.com/jquery/2.1.4/jquery.min.js"></script>';
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}
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if (empty(self::$tree) && Helper::options()->plugin('MenuTree')->hidden_no_title) {
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return;
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}
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$html = '<div class="in-page-preview-buttons in-page-preview-buttons-full-reader"><svg data-toggle="dropdown" aria-expanded="false" class="dropdown-toggle icon-list" version="1.1" id="tree_nav" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="104.5 -245.5 51 51" style="enable-background:new 104.5 -245.5 50 50;" xml:space="preserve"><path d="M130.895-218.312c-0.922,0-1.842-0.317-2.59-0.951l-11.01-9.352c-1.684-1.43-1.889-3.955-0.459-5.638c1.43-1.684,3.953-1.89,5.639-0.459l8.42,7.152l8.42-7.152c1.686-1.43,4.211-1.225,5.639,0.459c1.43,1.684,1.225,4.208-0.459,5.638l-11.01,9.352C132.738-218.628,131.816-218.312,130.895-218.312z M133.486-206.289l11.008-9.352c1.684-1.43,1.889-3.955,0.459-5.638c-1.43-1.682-3.955-1.89-5.639-0.458l-8.418,7.152l-8.422-7.152c-1.686-1.431-4.209-1.225-5.639,0.459c-1.43,1.684-1.225,4.208,0.461,5.638l11.012,9.352c0.746,0.634,1.668,0.951,2.588,0.951C131.818-205.337,132.74-205.654,133.486-206.289z"/></svg><div class="dropdown-menu theme pull-right theme-white keep-open" id="toc-list"><h3>内容目录</h3><hr><div class="table-of-contents"><div class="toc"><ul><li>'. self::buildMenuHtml( self::$tree ) .'</div></div></div></li></ul></div>';
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$js = Helper::options()->pluginUrl . '/MenuTree/dropdown.js?v=' . self::$v;
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echo <<<HTML
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<script src="{$js}"></script>
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<script type="text/javascript">
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(function($) {
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$('body').append('$html');
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$('.in-page-preview-buttons .dropdown-menu.keep-open').on('click', function (e) {
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e.stopPropagation();
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});
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})(jQuery);
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</script>
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HTML;
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self::$id = 1;
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self::$tree = array();
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}
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}
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