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Plugin.php
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Plugin.php
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<?php
if (!defined('__TYPECHO_ROOT_DIR__')) exit;
/**
* 根据内容标题关系自动生成目录树 【<a href="https://github.com/typecho-fans/plugins" target="_blank">TF</a>社区维护版】
*
* @package Menu Tree
* @author BeaconFire,Melon
* @version 0.1.2
* @link https://github.com/typecho-fans/plugins/tree/master/MenuTree
*/
// 使用方法：
// 在文章某处地方加上<!-- index-menu -->，程序会把这个注释替换成目录树
// 样式：
// .index-menu 整个目录
// .index-menu-list 列表 ul
// .index-menu-item 每个目录项 li
// .index-menu-link 目录项连接 a
// 独立模式下需要在主题模板中调用：$this->treeMenu();
class MenuTree_Plugin implements Typecho_Plugin_Interface
{
/**
* 索引ID
*/
public static $id = 1;
public static $pattern = '/(<|<)!--\s*index-menu\s*--(>|>)/i';
/**
* 标题匹配模式
*/
public static $patternTitle = '/<h([1-6])[^>]*>.*?<\/h\1>/s';
/**
* 目录树
*/
public static $tree = array();
/**
* 激活插件方法,如果激活失败,直接抛出异常
*
* @access public
* @return void
*/
public static function activate()
{
Typecho_Plugin::factory('admin/write-post.php')->bottom = array('MenuTree_Plugin', 'render');
Typecho_Plugin::factory('admin/write-page.php')->bottom = array('MenuTree_Plugin', 'render');
Typecho_Plugin::factory('Widget_Abstract_Contents')->contentEx = array('MenuTree_Plugin', 'contentEx');
Typecho_Plugin::factory('Widget_Abstract_Contents')->excerptEx = array('MenuTree_Plugin', 'excerptEx');
Typecho_Plugin::factory('Widget_Archive')->___treeMenu = array('MenuTree_Plugin', 'treeMenu');
}
/**
* 禁用插件方法,如果禁用失败,直接抛出异常
*
* @static
* @access public
* @return void
*/
public static function deactivate()
{
//do nothing
}
/**
* 获取插件配置面板
*
* @access public
* @param Typecho_Widget_Helper_Form $form 配置面板
* @return void
*/
public static function config(Typecho_Widget_Helper_Form $form)
{
$type = new Typecho_Widget_Helper_Form_Element_Checkbox('switch',
array('normal' => _t('嵌入模式'), 'single' => _t('独立模式')),
array('normal'),
_t('显示模式'));
$form->addInput($type);
}
/**
* 个人用户的配置面板
*
* @access public
* @param Typecho_Widget_Helper_Form $form
* @return void
*/
public static function personalConfig(Typecho_Widget_Helper_Form $form)
{
//do nothing
}
/**
* 列表页忽略目录生成标记
*
* @access public
* @return string
*/
public static function excerptEx($html, $widget, $lastResult)
{
return self::rmMenuTag($html);
}
/**
* 内容页构造索引目录
*
* @access public
* @return string
* @throws Typecho_Plugin_Exception
*/
public static function contentEx($html, $widget, $lastResult)
{
$html = empty($lastResult) ? $html : $lastResult;
$options = Helper::options()->plugin('MenuTree');
/**开关判断*/
if (!is_null($options->switch)
&& (in_array('single', $options->switch) or in_array('normal', $options->switch))) {
$html = preg_replace_callback(self::$patternTitle, array('MenuTree_Plugin', 'parseCallback'), $html);
if (in_array('normal', $options->switch)) {
$html = preg_replace(self::$pattern, '<div class="index-menu">' . self::buildMenuHtml(self::$tree) . '</div>', $html);
} else {
$html = self::rmMenuTag($html);
}
self::$id = 1;
self::$tree = array();
return $html;
}
$html = self::rmMenuTag($html);
return $html;
}
/**
* 构造独立的索引目录
*
* @param $archive
* @return string
* @throws Typecho_Plugin_Exception
*/
public static function treeMenu($archive)
{
$options = Helper::options()->plugin('MenuTree');
if (is_null($options->switch) || !in_array('single', $options->switch)) {
return '';
}
preg_replace_callback(self::$patternTitle, array('MenuTree_Plugin', 'parseCallback'), $archive->content);
$result = '<div class="index-menu">' . self::buildMenuHtml(self::$tree) . '</div>';
self::$id = 1;
self::$tree = array();
return $result;
}
/**
* 解析
*
* @access public
* @param array $match 解析值
* @return string
*/
public static function parseCallback($match)
{
$parent = &self::$tree;
$html = $match[0];
$n = $match[1];
$menu = array(
'num' => $n,
'title' => trim(strip_tags($html)),
'id' => 'menu_index_' . self::$id,
'sub' => array()
);
$current = array();
if ($parent) {
$current = &$parent[count($parent) - 1];
}
// 根
if (!$parent || (isset($current['num']) && $n <= $current['num'])) {
$parent[] = $menu;
} else {
while (is_array($current['sub'])) {
// 父子关系
if ($current['num'] == $n - 1) {
$current['sub'][] = $menu;
break;
} // 后代关系，并存在子菜单
elseif ($current['num'] < $n && $current['sub']) {
$current = &$current['sub'][count($current['sub']) - 1];
} // 后代关系，不存在子菜单
else {
for ($i = 0; $i < $n - $current['num']; $i++) {
$current['sub'][] = array(
'num' => $current['num'] + 1,
'sub' => array()
);
$current = &$current['sub'][0];
}
$current['sub'][] = $menu;
break;
}
}
}
self::$id++;
return "<span class=\"menu-target-fix\" id=\"{$menu['id']}\" name=\"{$menu['id']}\"></span>" . $html;
}
/**
* 构建目录树，生成索引
*
* @access public
* @param $tree
* @param bool $include
* @return string
*/
public static function buildMenuHtml($tree, $include = true)
{
$menuHtml = '';
foreach ($tree as $menu) {
/**默认给第一个链接添加class: .current */
$current = ($menu['id'] == 'menu_index_1') ? 'current' : '';
if (!isset($menu['id']) && $menu['sub']) {
$menuHtml .= self::buildMenuHtml($menu['sub'], false);
} elseif ($menu['sub']) {
$menuHtml .= "<li class=\"index-menu-item\"><a data-scroll class=\"index-menu-link {$current}\" href=\"#{$menu['id']}\" title=\"{$menu['title']}\">{$menu['title']}</a>" . self::buildMenuHtml($menu['sub']) . "</li>";
} else {
$menuHtml .= "<li class=\"index-menu-item\"><a data-scroll class=\"index-menu-link {$current}\" href=\"#{$menu['id']}\" title=\"{$menu['title']}\">{$menu['title']}</a></li>";
}
}
if ($include) {
$menuHtml = '<ul class="index-menu-list">' . $menuHtml . '</ul>';
}
return $menuHtml;
}
/**
* 删除文章中的菜单标记注释
*
* @param $html
* @return string|string[]|null
*/
public static function rmMenuTag($html)
{
$html = preg_replace(self::$pattern, '', $html);
return $html;
}
/**
* 编辑器插入短代码功能。
* @access public
* @return void
*/
public static function render(){
?>
<script>
$(function(){
var wmd = $('#wmd-image-button');
if (wmd.length>0) {
wmd.after(
'<li class="wmd-button" id="wmd-mn-button" style="padding-top:5px;" title="<?php _e("插入目录树"); ?>"><img src="data:image/svg+xml,%3csvg xmlns=\'http://www.w3.org/2000/svg\' width=\'16\' height=\'16\' viewBox=\'0 0 24 24\'%3e%3cpath fill=\'%23999\' d=\'M22 18v-7h-9v-5h3v-6h-8v6h3v5h-9v7h-2v6h6v-6h-2v-5h7v5h-2v6h6v-6h-2v-5h7v5h-2v6h6v-6z\'/%3e%3c/svg%3e"/></li>');
} else {
$('.url-slug').after('<button type="button" id="wmd-mn-button" class="btn btn-xs" style="margin-right:5px;"><?php _e("插入目录树"); ?></button>');
}
$('#wmd-mn-button').click(function(){
var textarea = $('#text'),
mninput = '<!-- index-menu -->',
sel = textarea.getSelection(),
offset = (sel ? sel.start : 0)+mninput.length;
textarea.replaceSelection(mninput);
textarea.setSelection(offset,offset);
});
});
</script>
<?php
}
}