在使用优雅主题的Divi主题的WordPress中,长菜单不显示

我发布此问题的原因是, Elegant主题的Wordpress Divi主题中的菜单系统存在一个基本问题。

如果你正在使用此主题, 并且菜单很大, 则可能会遇到问题。这里有2个问题要讨论。

  1. 如果任何菜单或子菜单有足够的项目超过屏幕底部, 则用户将看不到所有项目, 也无法滚动查看这些项目。 (请参见下面的第一个屏幕截图)
  2. 如果任何菜单或子菜单不在屏幕的右侧, 则该菜单或子菜单将被切断(或用户根本看不到), 并且用户无法滚动查看菜单项(请参见下面的第二张屏幕截图)

我查看了”典雅主题”的支持门户, 这是一个已知问题。当用户遇到它时, Elegant Themes支持似乎只是建议重新执行菜单, 以便它没有太多项目或项目不会超出屏幕边缘, 或者提供了无法解决的CSS修复问题在任何情况下都可以工作。

对我来说, 这些解决方案不是修复程序, 因此, 我想出了自己的修复程序, 该修复程序在经过测试的所有情况下都可以使用。欢迎提出建议, 如果其他人有更好的修复程序, 请发布。

(屏幕截图1)

菜单位于屏幕底部下方

(屏幕截图2)

在此处输入图片说明

#1

该修复程序需要一些JavaScript。

你可以使用wp_enqueue_scripts挂钩将javascript添加到子主题, 也可以将javascript直接添加到ePanel中的主题选项。 (要将其添加到ePanel中, 请转到你的ePanel并单击”集成”, 然后将以下代码添加到博客的开头。

下面的代码经过了注释, 以便你的编码人员可以轻松地了解正在发生的事情以及其工作方式。如果你发现任何问题, 请告诉我。

<script type="text/javascript">

// Once the document is ready, execute this code

jQuery(document).ready(function(e) {

'use strict';

// Set the jQ var to jQuery.

// You could also use $, but I use jQ... just my preference.

var jQ = jQuery;

// Execute the function that fixes the menus

fixDiviMenus();

// And whenever the window is resized, re-apply the fixes.

jQ(window).resize(function() { fixDiviMenus(); });

});

// This variable simply holds a timeout integer.

// It is used so that we don't continually apply the fixes

// over and over as the window is being resized.

var ClFixTimeout;

// This function sets a timeout that fixes the menus

// We set a timeout so that we don't continually apply the fixes

// over and over as the window is being resized.

function fixDiviMenus() {

"use strict";

// If the timeout has already been created, clear it

if (ClFixTimeout) { clearTimeout(ClFixTimeout); }

// Wait half a second before applying the fixes

ClFixTimeout = setTimeout(function() { applyDiviMenuFix(); }, 500);

}

// This function actually applies the fixes

function applyDiviMenuFix() {

'use strict';

var jQ = jQuery;

// Get some variables that we use to determine

// if our menus need fixing

var windowElem = jQ(window);

var windowHeight = windowElem.height();

var windowWidth = windowElem.width();

var scrollTop = windowElem.scrollTop();

// If the screen is 980px or less, // then the mobile menu is shown. No reconfiguration necessary

if (windowWidth < 981) { return; }

// Get all the sub menus

var subMenus = jQ('ul.sub-menu');

// Reset the css properties on each sub menu

// so that we can apply them again if need be.

subMenus.each(function() {

var menu = jQ(this);

menu.css({

'max-height': '', 'overflow-y': '', 'overflow-x': '', 'margin-left': ''

});

});

// Iterate each sub menu and apply fixes

subMenus.each(function() {

var menu = jQ(this);

// Check to see if this is a mega menu.

var isMegaMenu = menu.closest('.mega-menu').length > 0;

// Only the direct sub menu should be considered.

// All other children of mega menu do not need mods.

if (isMegaMenu && (!menu.parent().hasClass('mega-menu'))) { return; }

// Get some values that determine whether our menu

// will go below the bottom of the screen

var offset = menu.offset();

var top = offset.top - scrollTop;

var height = menu[0].offsetHeight;

// Set the padding between the bottom of the menu

// and the bottom of the page

// You can adjust this so that your menus go further

// down or not

var bottomPadding = 80;

// Set the maximum height of the menu

var maxHeight = windowHeight - top - bottomPadding;

// If it's a mega menu or the menu stretches beyond

// the bottom of the screen, set max height and overflow

if (isMegaMenu || height > maxHeight) {

menu.css({

'max-height': maxHeight.toString() + 'px', 'overflow-y': 'auto', 'overflow-x': 'hidden'

});

}

// If this is a mega menu, we don't need to check if it

// goes off the right side of the screen

if (isMegaMenu) { return; }

// Check for a menu that goes off the right edge of the screen

var left = offset.left;

var width = menu[0].offsetWidth;

var parentMenu = menu.parent().closest('ul');

var maxLeft = windowWidth - width - 10;

// If it goes off the edge

if (left > maxLeft) {

var marginLeft;

// If this is a root drop down, simply shift

// it to the left the correct number of pixels

if (parentMenu.hasClass('nav')) {

marginLeft = ( left - maxLeft ) * -1;

}

// Otherwise, this is a sub menu, we need to move

// it to the other side of the parent menu

else {

marginLeft = width * 2 * -1;

}

// Apply the css to the menu

menu.css({

'margin-left': marginLeft.toString() + 'px'

});

}

});

}

</script>

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