我最近被要求在“添加到购物车”时向WooCommerce产品页面添加模式。按下按钮。首先，我复制并修改了w3schools模式示例，并将其插入到我孩子主题的单品＆gt;中。 add-to-cart＆gt; simple.php文件。当我注释掉默认情况下隐藏模态的CSS行时，单击该按钮会调出模态，就像在示例中一样。但是，当我启用该行时，按下按钮时不会显示模态。我尝试使用不透明度而不是显示属性，但没有达到任何有意义的不同结果。我有一些合理基本HTML的经验，几乎没有PHP的经验，但我最好的猜测是，这是某种形式的执行顺序问题。
以下是https://www.w3schools.com/howto/tryit.asp?filename=tryhow_css_modal
的演示代码<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<h2>Modal Example</h2>
<!-- Trigger/Open The Modal -->
<button id="myBtn">Open Modal</button>
<!-- The Modal -->
<div id="myModal" class="modal">
<!-- Modal content -->
<div class="modal-content">
<span class="close">×</span>
<p>Some text in the Modal..</p>
</div>
</div>
<style>
body {font-family: Arial, Helvetica, sans-serif;}
/* The Modal (background) */
.modal {
display: none; /* Hidden by default */
position: fixed; /* Stay in place */
z-index: 1; /* Sit on top */
padding-top: 100px; /* Location of the box */
left: 0;
top: 0;
width: 100%; /* Full width */
height: 100%; /* Full height */
overflow: auto; /* Enable scroll if needed */
background-color: rgb(0,0,0); /* Fallback color */
background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}
/* Modal Content */
.modal-content {
background-color: #fefefe;
margin: auto;
padding: 20px;
border: 1px solid #888;
width: 80%;
}
/* The Close Button */
.close {
color: #aaaaaa;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}
</style>
<script>
// Get the modal
var modal = document.getElementById('myModal');
// Get the button that opens the modal
var btn = document.getElementById("myBtn");
// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];
// When the user clicks the button, open the modal
btn.onclick = function() {
modal.style.display = "block";
}
// When the user clicks on <span> (x), close the modal
span.onclick = function() {
modal.style.display = "none";
}
// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
if (event.target == modal) {
modal.style.display = "none";
}
}
</script>
</body>
</html>
这是我的simple.php文件的相关部分：
defined( 'ABSPATH' ) || exit;
global $product;
if ( ! $product->is_purchasable() ) {
return;
}
echo wc_get_stock_html( $product ); // WPCS: XSS ok.
if ( $product->is_in_stock() ) : ?>
<?php do_action( 'woocommerce_before_add_to_cart_form' ); ?>
<!-- Add code for modal here -->
<!-- Some style stuff -->
<!-- The Modal -->
<div id="myModal" class="modal">
<!-- Modal content -->
<div class="modal-content">
<span class="close">×</span>
<p>SAMPLE TEXT HERE</p>
</div>
</div>
<style>
body {font-family: Arial, Helvetica, sans-serif;}
/* The Modal (background) */
.modal {
/*display: none; /* Hidden by default */
position: fixed; /* Stay in place */
z-index: 1; /* Sit on top */
padding-top: 500px; /* Location of the box */
left: 0;
top: 0;
width: 100%; /* Full width */
height: 100%; /* Full height */
overflow: auto; /* Enable scroll if needed */
background-color: rgb(0,0,0); /* Fallback color */
background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}
/* Modal Content */
.modal-content {
background-color: #ff0080;
margin: auto;
padding: 20px;
border: 1px solid #888;
width: 80%;
}
/* The Close Button */
.close {
color: #aaaaaa;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}
</style>
<form class="cart" action="<?php echo esc_url( apply_filters( 'woocommerce_add_to_cart_form_action', $product->get_permalink() ) ); ?>" method="post" enctype='multipart/form-data'>
<?php do_action( 'woocommerce_before_add_to_cart_button' ); ?>
<?php
do_action( 'woocommerce_before_add_to_cart_quantity' );
/*woocommerce_quantity_input( array(
'min_value' => apply_filters( 'woocommerce_quantity_input_min', $product->get_min_purchase_quantity(), $product ),
'max_value' => apply_filters( 'woocommerce_quantity_input_max', $product->get_max_purchase_quantity(), $product ),
'input_value' => isset( $_POST['quantity'] ) ? wc_stock_amount( wp_unslash( $_POST['quantity'] ) ) : $product->get_min_purchase_quantity(), // WPCS: CSRF ok, input var ok.
) ); */
do_action( 'woocommerce_after_add_to_cart_quantity' );
?>
<button type="submit" name="add-to-cart" value="<?php echo esc_attr( $product->get_id() ); ?>" class="single_add_to_cart_button button alt"><?php echo esc_html( $product->single_add_to_cart_text() ); ?></button>
<script>
// Get the modal
var modal = document.getElementById('myModal');
// Get the button that opens the modal
var btn = document.getElementsByClassName("single_add_to_cart_button button alt");
// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];
modal.style.display = "none";
// When the user clicks the button, open the modal
btn.onclick = function() {
modal.style.display = "block";
}
// When the user clicks on <span> (x), close the modal
span.onclick = function() {
modal.style.display = "none";
}
// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
if (event.target == modal) {
modal.style.display = "none";
}
}
</script>
<?php do_action( 'woocommerce_after_add_to_cart_button' ); ?>
</form>
<?php do_action( 'woocommerce_after_add_to_cart_form' ); ?>
<?php endif; ?>
我尝试将HTML和CSS部分移动到其他文件，但这并没有解决问题。我通过互联网研究找到的大多数内容只是建议我默认设置.modal {display: none;}，这就是示例已经在做的事情。知道为什么这不起作用吗？
答案 0 :(得分：0)
按钮被抓住了，模态正准备好做它的事情。但是，然后提交表单，浏览器会执行其操作 - 导航离开页面。我稍微修改了您的代码，现在它捕获 - 然后阻止 - 提交表单。
// Get the modal
var modal = document.getElementById('myModal');
// Get the form
var form = document.getElementById('myForm');
// Get the <span> element that closes the modal
var span = document.getElementById('myModalClose');
// When the user clicks the button, open the modal
form.onsubmit = function() {
modal.style.display = "block";
return false;
}
// When the user clicks on <span> (x), close the modal
span.onclick = function() {
modal.style.display = "none";
}
// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
if (event.target == modal) {
modal.style.display = "none";
}
}body {font-family: Arial, Helvetica, sans-serif;}
/* The Modal (background) */
.modal {
display: none; /* Hidden by default */
position: fixed; /* Stay in place */
z-index: 1; /* Sit on top */
padding-top: 500px; /* Location of the box */
left: 0;
top: 0;
width: 100%; /* Full width */
height: 100%; /* Full height */
overflow: auto; /* Enable scroll if needed */
background-color: rgb(0,0,0); /* Fallback color */
background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}
/* Modal Content */
.modal-content {
background-color: #ff0080;
margin: auto;
padding: 20px;
border: 1px solid #888;
width: 80%;
}
/* The Close Button */
.close {
color: #aaaaaa;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}<div id="myModal" class="modal">
<div class="modal-content">
<span id="myModalClose" class="close">×</span>
<p>SAMPLE TEXT HERE</p>
</div>
</div>
<form id="myForm" class="cart" action="#" method="post" enctype='multipart/form-data'>
<button type="submit" name="add-to-cart" value="" class="single_add_to_cart_button button alt">my button</button>
</form>