Ich versuche einen Mega-Menü-Walker zu erstellen. Leider entgehen Wanderer meinen Codierungskenntnissen völlig. Ich könnte wirklich Hilfe gebrauchen, damit es funktioniert. Hier sind die Funktionen, die ich brauche:
- Wickeln Sie die zweite Ebene
<ul>
ein<section>
. [KOMPLETT] - Wenn ein Benutzer die Klasse "break" auf a
<li>
in der zweiten Ebene setzt<ul>
, machen Sie<li>
den Start neu<ul>
. Wenn es das erste<li>
in der Liste ist, tun Sie nichts, um die Bildung leerer ungeordneter Listen zu verhindern. [KOMPLETT] - Wenn ein Benutzer die Klasse "Widget"
<li>
in der ersten Ebene mit einem<ul>
Unterelement festlegt , hängen Sie ein Widget an das Ende an<ul>
. [KOMPLETT] - Fügen Sie Klasse
mega-menu-columns-#
zu<li>
Elementen der ersten Ebene hinzu , die Dropdowns mit mehreren Spalten und / oder einem Widget enthalten. Das # steht für die Anzahl der<ul>
Elemente, +1 für das Widget, falls vorhanden. [KOMPLETT]
Ich habe ein bisschen Code, um einiges davon zu tun, aber nicht alles. Es gibt unten ausgeschnittene Abschnitte:
Wickeln Sie die zweite Ebene ein <ul>
in <section>
:
function start_lvl(&$output, $depth = 0, $args = array()) {
if ($depth == 0) {
$output .= "<section>";
}
$output .= "<ul class=\"sub-menu\">";
}
function end_lvl(&$output, $depth = 0, $args = array()) {
$output .= "</ul>";
if ($depth == 0) {
$output .= "</section>\n";
}
}
Generieren Sie das Widget HTML:
ob_start();
dynamic_sidebar("Navigation Callout");
$widget = ob_get_contents();
ob_end_clean();
Der Ausgabe-HTML wäre:
<ul>
<li id="menu-item-1" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-1 mega-menu-columns-2">
<a href="http://www.example.com/about/">
About Us
</a>
<section>
<ul class="sub-menu">
<li id="menu-item-2" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-2">
<a href="http://www.example.com/about/company-profile/">
Company Profile
</a>
</li>
<li id="menu-item-3" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-3">
<a href="http://www.example.com/about/leadership-team/">
Leadership Team
</a>
</li>
<li id="menu-item-4" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-4">
<a href="http://www.example.com/about/professional-affiliations/">
Professional Affiliations
</a>
</li>
</ul>
<ul class="sub-menu">
<li id="menu-item-5" class="break menu-item menu-item-type-post_type menu-item-object-page menu-item-5">
<a href="http://www.example.com/about/clients/">
Clients
</a>
</li>
<li id="menu-item-6" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-6">
<a href="http://www.example.com/about/partnerships/">
Partnerships
</a>
</li>
</ul>
</section>
</li>
<li id="menu-item-7" class="widget menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-7 mega-menu-columns-3">
<a href="http://www.example.com/services/">
Services
</a>
<section>
<ul class="sub-menu">
<li id="menu-item-8" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-8">
<a href="http://www.example.com/services/civil-engineering/">
Civil Engineering
</a>
</li>
<li id="menu-item-9" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-9">
<a href="http://www.example.com/services/land-planning/">
Land Planning
</a>
</li>
<li id="menu-item-10" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-10">
<a href="http://www.example.com/services/surveying/">
Surveying
</a>
</li>
</ul>
<ul class="sub-menu">
<li id="menu-item-11" class="break menu-item menu-item-type-post_type menu-item-object-page menu-item-11">
<a href="http://www.example.com/services/information-technology/">
Information Technology
</a>
</li>
<li id="menu-item-12" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-12">
<a href="http://www.example.com/services/subsurface-utility-engineering/">
Subsurface Utility Engineering
</a>
</li>
</ul>
<aside>
<h6>Widget Title</h6>
<p>Maecenas quis semper arcu. Quisque consequat risus nisi. Sed venenatis urna porta eros malesuada euismod. Nulla sollicitudin fringilla posuere. Nulla et tellus eu nisi sodales convallis non vel tellus.</p>
</aside>
</section>
</li>
<li id="menu-item-13" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-15">
<a href="http://www.example.com/contact/">
Contact Us
</a>
</li>
</ul>
UPDATE: Meine Zähler machen mir Sorgen. Sie zählen erst, nachdem das Untermenü generiert wurde, was mir nicht hilft. Sehen Sie sich diesen Screenshot an, um zu verstehen, was ich meine:
Die Top-Nummern werden eingezogen start_el
. Die unteren Zahlen werden eingezogen end_el
. Wie Sie sehen können, zählen die Top-Zahlen meine nicht so, .breaks
wie sie sollten. Sie zählen die Widget-Klasse, weil diese gezählt werden $depth = 0
. Jemand bitte rette mich vor dieser Schrecklichkeit!
// mega menu walker
/*
ONE REMAINING BUG:
- Need to add class to LI containing mega-menu-columns-#
*/
class megaMenuWalker extends Walker_Nav_Menu {
private $column_limit = 3; /* needs to be set for each site */
private $show_widget = false;
private $column_count = 0;
static $li_count = 0;
function start_el(&$output, $item, $depth = 0, $args = array(), $id = 0) {
$classes = empty($item->classes) ? array() : (array) $item->classes;
$item_id = $item->ID;
if ($depth == 0) self::$li_count = 0;
if ($depth == 0 && in_array("widget", $classes)) {
$this->show_widget = true;
$this->column_count++;
}
if ($depth == 1 && self::$li_count == 1) {
$this->column_count++;
}
if ($depth == 1 && in_array("break", $classes) && self::$li_count != 1 && $this->column_count < $this->column_limit) {
$output .= "</ul><ul class=\"sub-menu\">";
$this->column_count++;
}
if ($depth == 0 && $this->column_count > 0) {
$mega_menu_class = " mega-menu-columns-" . $this->column_count;
}
$class_names = join(" ", apply_filters("nav_menu_css_class", array_filter($classes), $item));
$class_names = " class=\"" . esc_attr($class_names . $mega_menu_class) . "\"";
$output .= sprintf(
"<li id=\"menu-item-%s\"%s><a href=\"%s\">%s</a>",
$item_id,
$class_names,
$item->url,
$item->title
);
self::$li_count++;
}
function start_lvl(&$output, $depth = 0, $args = array()) {
if ($depth == 0) {
$output .= "<section>";
}
$output .= "<ul class=\"sub-menu\">";
}
function end_lvl(&$output, $depth = 0, $args = array()) {
$output .= "</ul>";
if ($depth == 0) {
if ($this->show_widget) {
ob_start();
dynamic_sidebar("Navigation Callout");
$widget = ob_get_contents();
ob_end_clean();
$output .= $widget;
$this->show_widget = false;
}
$output .= "</section>";
}
}
function end_el(&$output, $item, $depth = 0, $args = array(), $id = 0) {
if ($depth == 0 && $this->column_count > 0) {
/* needs to be added to opening level 0 li */
$column_count_class = " mega-menu-columns-" . $this->column_count;
$output .= $column_count_class;
/* end */
$this->column_count = 0;
}
$output .= "</li>";
}
}
UPDATE 2: Hier ist ein Beispiel für eine Ausgabe mit Kommentaren, die beschreiben, wie die mega-menu-columns-
Klasse die Dinge zählen soll:
<ul>
<!-- +1 because this has a class of "widget" -->
<li id="menu-item-1" class="widget menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-1 mega-menu-columns-3">
<a href="http://www.example.com/about/">
About Us
</a>
<!-- +1 because a drop down exists -->
<!-- gets added by my walker -->
<section>
<!-- end gets added by my walker -->
<ul class="sub-menu">
<!-- +0 because this "break" is the first child -->
<li id="menu-item-2" class="break menu-item menu-item-type-post_type menu-item-object-page menu-item-2">
<a href="http://www.example.com/about/company-profile/">
Company Profile
</a>
<ul>
<!-- +0 because this "break" is in level 2 -->
<li id="menu-item-3" class="break menu-item menu-item-type-post_type menu-item-object-page menu-item-3">
<a href="http://www.example.com/about/our-team/">
Our Team
</a>
</li>
</ul>
</li>
<li id="menu-item-4" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-4">
<a href="http://www.example.com/about/leadership-team/">
Leadership Team
</a>
</li>
<li id="menu-item-5" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-5">
<a href="http://www.example.com/about/professional-affiliations/">
Professional Affiliations
</a>
</li>
<!-- gets added by my walker -->
</ul>
<ul class="sub-menu">
<!-- end gets added by my walker -->
<!-- +1 because this "break" is in level 1 and not the first child -->
<li id="menu-item-6" class="break menu-item menu-item-type-post_type menu-item-object-page menu-item-6">
<a href="http://www.example.com/about/clients/">
Clients
</a>
</li>
<li id="menu-item-7" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-7">
<a href="http://www.example.com/about/partnerships/">
Partnerships
</a>
</li>
</ul>
<!-- gets added by my walker for .widget -->
<section>
<header>
<h1>Widget Title</h1>
</header>
<p>This is a widget. It was hard to make appear!</p>
</section>
<!-- end gets added by my walker for .widget -->
<!-- gets added by my walker -->
</section>
<!-- end gets added by my walker -->
</li>
</ul>
UPDATE: Hier ist mein letzter Walker und meine letzten Funktionen. Das macht genau das , was ich wollte. Danke für die Hilfe!
// mega menu walker
class megaMenuWalker extends Walker_Nav_Menu {
private $column_limit = 3;
private $show_widget = false;
private $column_count = 0;
static $li_count = 0;
function start_el(&$output, $item, $depth = 0, $args = array(), $id = 0) {
$classes = empty($item->classes) ? array() : (array) $item->classes;
$item_id = $item->ID;
if ($depth == 0) {
self::$li_count = 0;
}
if ($depth == 0 && in_array("widget", $classes)) {
$this->show_widget = true;
$this->column_count++;
}
if ($depth == 1 && self::$li_count == 1) {
$this->column_count++;
}
if ($depth == 1 && in_array("break", $classes) && self::$li_count != 1 && $this->column_count < $this->column_limit) {
$output .= "</ul><ul class=\"sub-menu\">";
$this->column_count++;
}
$class_names = join(" ", apply_filters("nav_menu_css_class", array_filter($classes), $item)); // set up the classes array to be added as classes to each li
$class_names = " class=\"" . esc_attr($class_names) . "\"";
$output .= sprintf(
"<li id=\"menu-item-%s\"%s><a href=\"%s\">%s</a>",
$item_id,
$class_names,
$item->url,
$item->title
);
self::$li_count++;
}
function start_lvl(&$output, $depth = 0, $args = array()) {
if ($depth == 0) {
$output .= "<section>";
}
$output .= "<ul class=\"sub-menu\">";
}
function end_lvl(&$output, $depth = 0, $args = array()) {
$output .= "</ul>";
if ($depth == 0) {
if ($this->show_widget) {
ob_start();
dynamic_sidebar("Navigation Callout");
$widget = ob_get_contents();
ob_end_clean();
$output .= $widget;
$this->show_widget = false;
}
$output .= "</section>";
}
}
function end_el(&$output, $item, $depth = 0, $args = array(), $id = 0) {
if ($depth == 0 && $this->column_count > 0) {
$this->column_count = 0;
}
$output .= "</li>";
}
}
// add mega-menu-columns-# classes
function add_column_number($items, $args) {
static $column_limit = 3;
static $post_id = 0;
static $x_key = 0;
static $column_count = 0;
static $li_count = 0;
$tmp = array();
foreach($items as $key => $item) {
if (0 == $item->menu_item_parent) {
$x_key = $key;
$post_id = $item->ID;
$column_count = 0;
$li_count = 0;
if (in_array("widget", $item->classes, 1)) {
$column_count++;
}
}
if ($post_id == $item->menu_item_parent) {
$li_count++;
if ($column_count < $column_limit && $li_count == 1) {
$column_count++;
}
if (in_array("break", $item->classes, 1) && $li_count > 1 && $column_count < $column_limit) {
$column_count++;
}
$tmp[$x_key] = $column_count;
}
}
foreach($tmp as $key => $value) {
$items[$key]->classes[] = sprintf("mega-menu-columns-%d", $value);
}
unset($tmp);
return $items;
};
// add the column classes
add_filter("wp_nav_menu_args", function($args) {
if ($args["walker"] instanceof megaMenuWalker) {
add_filter("wp_nav_menu_objects", "add_column_number");
}
return $args;
});
// stop the column classes function
add_filter("wp_nav_menu", function( $nav_menu ) {
remove_filter("wp_nav_menu_objects", "add_column_number");
return $nav_menu;
});
function add_column_number($items, $args) {
in dieses function add_column_number($items) {
Entfernen zu ändern $args
und es funktioniert gut für mich mit dieser Änderung, ziemlich seltsam! Vielen Dank für das Teilen Ihres Codes, obwohl es genau das ist, was ich seit langer Zeit gebraucht habe
Warning: Missing argument 2 for add_column_number()
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