我只是尝试按照本指南在Wordpress中实现手风琴菜单。
http://cssmenumaker.com/blog/wordpress-accordion-menu-tutorial
我的测试站点在这里：http://testsite2.seyoum.net/
如果我完全按照指南所说的进行操作，WP可以打印菜单，并且我可以看到应用了css样式。问题是li组在单击时不会展开（这是这里的要点）。我不确定这是因为.js不起作用还是还有其他原因。
我想也许我以前有冲突的 CSS，所以我用 _s 制作了一个新的 wordpress 主题，删除了所有 css 样式（以便只应用手风琴菜单中的 CSS），但我仍然遇到了同样的问题。菜单在那里。它只是在单击时不会展开。
那么是什么原因造成的呢？
脚本.js：
( function( $ ) {
$( document ).ready(function() {
$('#cssmenu li.has-sub>a').on('click', function(){
$(this).removeAttr('href');
var element = $(this).parent('li');
if (element.hasClass('open')) {
element.removeClass('open');
element.find('li').removeClass('open');
element.find('ul').slideUp();
}
else {
element.addClass('open');
element.children('ul').slideDown();
element.siblings('li').children('ul').slideUp();
element.siblings('li').removeClass('open');
element.siblings('li').find('li').removeClass('open');
element.siblings('li').find('ul').slideUp();
}
});
$('#cssmenu>ul>li.has-sub>a').append('<span class="holder"></span>');
(function getColor() {
var r, g, b;
var textColor = $('#cssmenu').css('color');
textColor = textColor.slice(4);
r = textColor.slice(0, textColor.indexOf(','));
textColor = textColor.slice(textColor.indexOf(' ') + 1);
g = textColor.slice(0, textColor.indexOf(','));
textColor = textColor.slice(textColor.indexOf(' ') + 1);
b = textColor.slice(0, textColor.indexOf(')'));
var l = rgbToHsl(r, g, b);
if (l > 0.7) {
$('#cssmenu>ul>li>a').css('text-shadow', '0 1px 1px rgba(0, 0, 0, .35)');
$('#cssmenu>ul>li>a>span').css('border-color', 'rgba(0, 0, 0, .35)');
}
else
{
$('#cssmenu>ul>li>a').css('text-shadow', '0 1px 0 rgba(255, 255, 255, .35)');
$('#cssmenu>ul>li>a>span').css('border-color', 'rgba(255, 255, 255, .35)');
}
})();
function rgbToHsl(r, g, b) {
r /= 255, g /= 255, b /= 255;
var max = Math.max(r, g, b), min = Math.min(r, g, b);
var h, s, l = (max + min) / 2;
if(max == min){
h = s = 0;
}
else {
var d = max - min;
s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
switch(max){
case r: h = (g - b) / d + (g < b ? 6 : 0); break;
case g: h = (b - r) / d + 2; break;
case b: h = (r - g) / d + 4; break;
}
h /= 6;
}
return l;
}
});
} )( jQuery );
呈现的 HTML：
<div id="cssmenu" class="menu-accordion-menu-test-container"><ul id="menu-accordion-menu-test" class="menu"><li id="menu-item-1741" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children has-sub"><a href="#"><span>Group 1</span></a>
<ul>
<li id="menu-item-1743" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children has-sub"><a href="#"><span>Sub Group 1</span></a>
<ul>
<li id="menu-item-1746" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
<li id="menu-item-1747" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
<li id="menu-item-1748" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
</ul>
</li>
<li id="menu-item-1744" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children has-sub"><a href="#"><span>Sub Group 2</span></a>
<ul>
<li id="menu-item-1751" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children has-sub"><a href="#"><span>Sub Group Level 3</span></a>
<ul>
<li id="menu-item-1749" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
<li id="menu-item-1750" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
</ul>
</li>
<li id="menu-item-1752" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
</ul>
</li>
<li id="menu-item-1753" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
<li id="menu-item-1754" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
</ul>
</li>
<li id="menu-item-1755" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children has-sub"><a href="#"><span>Group 2</span></a>
<ul>
<li id="menu-item-1756" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
<li id="menu-item-1757" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
</ul>
</li>
<li id="menu-item-1758" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children has-sub"><a href="#"><span>Group 3</span></a>
<ul>
<li id="menu-item-1759" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
<li id="menu-item-1760" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
</ul>
</li>
<li id="menu-item-1761" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children has-sub"><a href="#"><span>Group 4</span></a>
<ul>
<li id="menu-item-1762" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children has-sub"><a href="#"><span>Sub Group 3</span></a>
<ul>
<li id="menu-item-1763" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
<li id="menu-item-1764" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
</ul>
</li>
<li id="menu-item-1765" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
<li id="menu-item-1766" class="menu-item menu-item-type-custom menu-item-object-custom"><a href="#"><span>Image</span></a></li>
</ul>
</li>
</ul></div>
.CSS：
#cssmenu,
#cssmenu ul,
#cssmenu ul li,
#cssmenu ul li a {
margin: 0;
padding: 0;
border: 0;
list-style: none;
line-height: 1;
display: block;
position: relative;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
#cssmenu {
width: 200px;
font-family: Helvetica, Arial, sans-serif;
color: #ffffff;
}
#cssmenu ul ul {
display: none;
}
.align-right {
float: right;
}
#cssmenu > ul > li > a {
padding: 15px 20px;
border-left: 1px solid #1682ba;
border-right: 1px solid #1682ba;
border-top: 1px solid #1682ba;
cursor: pointer;
z-index: 2;
font-size: 14px;
font-weight: bold;
text-decoration: none;
color: #ffffff;
text-shadow: 0 1px 1px rgba(0, 0, 0, 0.35);
background: #36aae7;
background: -webkit-linear-gradient(#36aae7, #1fa0e4);
background: -moz-linear-gradient(#36aae7, #1fa0e4);
background: -o-linear-gradient(#36aae7, #1fa0e4);
background: -ms-linear-gradient(#36aae7, #1fa0e4);
background: linear-gradient(#36aae7, #1fa0e4);
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
}
#cssmenu > ul > li > a:hover,
#cssmenu > ul > li.active > a,
#cssmenu > ul > li.open > a {
color: #eeeeee;
background: #1fa0e4;
background: -webkit-linear-gradient(#1fa0e4, #1992d1);
background: -moz-linear-gradient(#1fa0e4, #1992d1);
background: -o-linear-gradient(#1fa0e4, #1992d1);
background: -ms-linear-gradient(#1fa0e4, #1992d1);
background: linear-gradient(#1fa0e4, #1992d1);
}
#cssmenu > ul > li.open > a {
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15), 0 1px 1px rgba(0, 0, 0, 0.15);
border-bottom: 1px solid #1682ba;
}
#cssmenu > ul > li:last-child > a,
#cssmenu > ul > li.last > a {
border-bottom: 1px solid #1682ba;
}
.holder {
width: 0;
height: 0;
position: absolute;
top: 0;
right: 0;
}
.holder::after,
.holder::before {
display: block;
position: absolute;
content: "";
width: 6px;
height: 6px;
right: 20px;
z-index: 10;
-webkit-transform: rotate(-135deg);
-moz-transform: rotate(-135deg);
-ms-transform: rotate(-135deg);
-o-transform: rotate(-135deg);
transform: rotate(-135deg);
}
.holder::after {
top: 17px;
border-top: 2px solid #ffffff;
border-left: 2px solid #ffffff;
}
#cssmenu > ul > li > a:hover > span::after,
#cssmenu > ul > li.active > a > span::after,
#cssmenu > ul > li.open > a > span::after {
border-color: #eeeeee;
}
.holder::before {
top: 18px;
border-top: 2px solid;
border-left: 2px solid;
border-top-color: inherit;
border-left-color: inherit;
}
#cssmenu ul ul li a {
cursor: pointer;
border-bottom: 1px solid #32373e;
border-left: 1px solid #32373e;
border-right: 1px solid #32373e;
padding: 10px 20px;
z-index: 1;
text-decoration: none;
font-size: 13px;
color: #eeeeee;
background: #49505a;
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
#cssmenu ul ul li:hover > a,
#cssmenu ul ul li.open > a,
#cssmenu ul ul li.active > a {
background: #424852;
color: #ffffff;
}
#cssmenu ul ul li:first-child > a {
box-shadow: none;
}
#cssmenu ul ul ul li:first-child > a {
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
#cssmenu ul ul ul li a {
padding-left: 30px;
}
#cssmenu > ul > li > ul > li:last-child > a,
#cssmenu > ul > li > ul > li.last > a {
border-bottom: 0;
}
#cssmenu > ul > li > ul > li.open:last-child > a,
#cssmenu > ul > li > ul > li.last.open > a {
border-bottom: 1px solid #32373e;
}
#cssmenu > ul > li > ul > li.open:last-child > ul > li:last-child > a {
border-bottom: 0;
}
#cssmenu ul ul li.has-sub > a::after {
display: block;
position: absolute;
content: "";
width: 5px;
height: 5px;
right: 20px;
z-index: 10;
top: 11.5px;
border-top: 2px solid #eeeeee;
border-left: 2px solid #eeeeee;
-webkit-transform: rotate(-135deg);
-moz-transform: rotate(-135deg);
-ms-transform: rotate(-135deg);
-o-transform: rotate(-135deg);
transform: rotate(-135deg);
}
#cssmenu ul ul li.active > a::after,
#cssmenu ul ul li.open > a::after,
#cssmenu ul ul li > a:hover::after {
border-color: #ffffff;
}
从标头.php
<<?php
wp_nav_menu(array(
'menu' => 'Accordion menu test', // This will be different for you.
'container_id' => 'cssmenu',
'walker' => new CSS_Menu_Maker_Walker()
));
?>
从函数.php：
add_action('wp_enqueue_scripts', 'cssmenumaker_scripts_styles' );
function cssmenumaker_scripts_styles() {
wp_enqueue_style( 'cssmenu-styles', get_template_directory_uri() . '/cssmenu/styles.css');
wp_enqueue_script('cssmenu-scripts', get_template_directory_uri() . '/cssmenu/script.js');
}
class CSS_Menu_Maker_Walker extends Walker {
var $db_fields = array( 'parent' => 'menu_item_parent', 'id' => 'db_id' );
function start_lvl( &$output, $depth = 0, $args = array() ) {
$indent = str_repeat("'t", $depth);
$output .= "'n$indent<ul>'n";
}
function end_lvl( &$output, $depth = 0, $args = array() ) {
$indent = str_repeat("'t", $depth);
$output .= "$indent</ul>'n";
}
function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
global $wp_query;
$indent = ( $depth ) ? str_repeat( "'t", $depth ) : '';
$class_names = $value = '';
$classes = empty( $item->classes ) ? array() : (array) $item->classes;
/* Add active class */
if(in_array('current-menu-item', $classes)) {
$classes[] = 'active';
unset($classes['current-menu-item']);
}
/* Check for children */
$children = get_posts(array('post_type' => 'nav_menu_item', 'nopaging' => true, 'numberposts' => 1, 'meta_key' => '_menu_item_menu_item_parent', 'meta_value' => $item->ID));
if (!empty($children)) {
$classes[] = 'has-sub';
}
$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) );
$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
$id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args );
$id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
$output .= $indent . '<li' . $id . $value . $class_names .'>';
$attributes = ! empty( $item->attr_title ) ? ' title="' . esc_attr( $item->attr_title ) .'"' : '';
$attributes .= ! empty( $item->target ) ? ' target="' . esc_attr( $item->target ) .'"' : '';
$attributes .= ! empty( $item->xfn ) ? ' rel="' . esc_attr( $item->xfn ) .'"' : '';
$attributes .= ! empty( $item->url ) ? ' href="' . esc_attr( $item->url ) .'"' : '';
$item_output = $args->before;
$item_output .= '<a'. $attributes .'><span>';
$item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;
$item_output .= '</span></a>';
$item_output .= $args->after;
$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
}
function end_el( &$output, $item, $depth = 0, $args = array() ) {
$output .= "</li>'n";
}
}
我在这里找到了一个非常有用和详细的指南：https://premium.wpmudev.org/blog/adding-jquery-scripts-wordpress/
解决方案很简单：
// Add styles to the cssmenu
add_action('wp_enqueue_scripts', 'cssmenumaker_scripts_styles' );
function cssmenumaker_scripts_styles() {
wp_enqueue_style( 'cssmenu-styles', get_template_directory_uri() . '/cssmenu/styles.css');
}
// Add script to the css menu
function css_menu_script() {
wp_enqueue_script( 'css_menu_script', get_template_directory_uri() . '/cssmenu/script.js', array( 'jquery' ), '1.0.0', true );
}
add_action( 'wp_enqueue_scripts', 'css_menu_script' );