Question

我正在尝试为我的个人网站上的某些证书实施仅CSS灯箱效果。不幸的是，每当我单击要扩展的图像时，它要么滚动到页面顶部，要么稍微向下滚动-而不是定位到完整尺寸的图像（我相信这是由于平滑的滚动逻辑令人困惑图片目标中的井号和页面目标中的井号）。我只能通过在浏览器中手动输入地址来访问展开的图像。有什么建议吗？

Here is the site link.

    <div class="background-certs" id="certificates">  
  <div class="title-box">
    <h3 class="h3-web">{ certificates }</h3>
    <h4 class="h4-web">I enjoy learning</h4>
  </div>    

  <div class="cert-container">
    <a href="#cert-item-1" class="button-new">
      <div class="box1 grid-sub">
          <%= image_tag "firehose.jpg", class: "full-width-cert" %>
      </div>
      </a>
    <h4 class="h4-subtitle">software engineering bootcamp</h4>
    <p class="cert-subtitle">Dec. 2017 - Oct. 2018</p> 
  </div>

  <div class="cert-container">
    <a href="#cert-item-2" class="button-new">
      <div class="box1 grid-sub">
        <%= image_tag "udemy-js.jpg", class: "full-width-cert" %>
      </div>
    </a>  
    <h4 class="h4-subtitle">JavaScript: the weird parts</h4>
    <p class="cert-subtitle">Nov. 2018</p> 
  </div>

    <br class="clear" />

    <div class="cert-container">
      <a href="#cert-item-3" class="button-new">
        <div class="box1 grid-sub">
          <%= image_tag "udemy-algos.jpg", class: "full-width-cert" %>
        </div>
      </a> 
      <h4 class="h4-subtitle">algorithms + data structures</h4>
      <p class="cert-subtitle">Dec. 2018</p> 
    </div>

    <div class="cert-container">
      <a href="#cert-item-4" class="button-new">
        <div class="box1 grid-sub">
          <%= image_tag "udemy-shopify.jpg", class: "full-width-cert" %>
        </div>
      </a>
      <h4 class="h4-subtitle">shopify themes from scratch</h4>
      <p class="cert-subtitle">Feb. 2019</p> 
    </div>


    <div class="certificate-lightboxes">

      <div class="cert-lightbox" id="cert-item-1">
        <div class="cert-lightbox__content">
          <a href="#certificates" class="close"></a>
          <%= image_tag "firehose.jpg", class: "full-width-cert" %>
        </div>
      </div>

      <div class="cert-lightbox" id="cert-item-2">
        <div class="cert-lightbox__content">
          <a href="#certificates" class="close"></a>
          <%= image_tag "udemy-js.jpg", class: "full-width-cert" %>
        </div>
      </div>

      <div class="cert-lightbox" id="cert-item-3">
        <div class="cert-lightbox__content">
        <a href="#certificates" class="close"></a>
          <%= image_tag "udemy-algos.jpg", class: "full-width-cert" %>
        </div>
      </div>

      <div class="cert-lightbox" id="cert-item-4">
        <div class="cert-lightbox__content">
          <a href="#certificates" class="close"></a>
          <%= image_tag "udemy-shopify.jpg", class: "full-width-cert" %>
        </div>
      </div>

    </div>


    <div class="bottom-line"></div>
  </div>

/** LIGHTBOX MARKUP **/

.cert-lightbox {
  display: flex;
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: black;
  align-items: center;
  justify-content: center;
  transform: scale(0, 0);
  transition: transform ease-in-out 100ms;
}

.cert-lightbox:target {
  transform: scale(1, 1) !important;
  display: flex;
  z-index: 900;
}

.cert-lightbox__content {
  width: 65%;
  position: relative;
}

.close {
  position: absolute;
  width: 2em;
  height: 2em;
  background: red;
  top: -1em;
  right: -1em;
  border-radius: 50%;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close::after {
  content: "X";
  color: white;
  font-weight: 700;
}

在application.html.erb中平滑滚动

<script type="text/javascript">
var $root = $('html, body');

$('a[href^="#"]').click(function () {
$root.animate({
    scrollTop: $( $.attr(this, 'href') ).offset().top
}, 400);

return false;
  });
  </script>

scroll.js中的平滑滚动

 function scrollToHash(event) {
// On-page links
if (
  location.pathname.replace(/^\//, '') == this.pathname.replace(/^\//, '') 
  && 
  location.hostname == this.hostname
) {
  // Figure out element to scroll to
  var target = $(this.hash);
  target = target.length ? target : $('[name=' + this.hash.slice(1) + ']');
  // Does a scroll target exist?
  if (target.length) {
    // Only prevent default if animation is actually gonna happen
    event.preventDefault();
    $('html, body').animate({
      scrollTop: target.offset().top
    }, 1000, function() {
      // Callback after animation
      // Must change focus!
      var $target = $(target);
      $target.focus();
      if ($target.is(":focus")) { // Checking if the target was focused
        return false;
      } else {
        $target.attr('tabindex','-1'); // Adding tabindex for elements not focusable
        $target.focus(); // Set focus again
      };
    });
  }
}
};

  // Select all links with hashes
 $('a[href*="#"]')
  // Remove links that don't actually link to anything
   .not('[href="#"]')
  .not('[href="#0"]')
  .click(scrollToHash);

Answer 1

避免将平滑的滚动侦听器附加到具有属性的链接上

与在平滑滚动初始化中添加多个.not之类的调用.not('[href="#cert-item-1"]')相比，略有改进，您可以为每个灯箱链接添加自定义HTML属性data-no-smooth-scroll（{{3 }}）：

<div class="cert-container">
  <a href="#cert-item-1" data-no-smooth-scroll class="button-new"> <!-- added on this line -->
    <div class="box1 grid-sub">
      <%= image_tag "firehose.jpg", class: "full-width-cert" %>
    </div>
  </a>
  <h4 class="h4-subtitle">software engineering bootcamp</h4>
  <p class="cert-subtitle">Dec. 2017 - Oct. 2018</p> 
</div>

<!-- also add the attribute within the `a` for #cert-item-2, etc. -->

然后在JavaScript中只需要一个.not：

// Select all links with hashes
$('a[href*="#"]')
  // Remove links that don't actually link to anything
  .not('[href="#"]')
  .not('[href="#0"]')
  .not('[data-no-smooth-scroll]') // this line was added
  .click(scrollToHash);

选择器[data-no-smooth-scroll]是about data- attributes。

在设置灯箱时删除平滑的滚动侦听器

或者，您可以将灯箱初始化代码更改为调用.off('click')（假设它使用jQuery –您未显示该代码）。在附加新的打开灯箱的click事件监听器之前，这将从选定的链接中删除所有现有的click事件监听器。

这在某些方面会更清洁，但是会引入一个要求，即在平滑滚动后初始化灯箱。另外，如果您添加了其他全局点击处理程序（例如Google Analytics（分析）），它也会删除该处理程序。因此，我担心随着将来代码的更改，此解决方案将难以继续工作。

灯箱由于平滑滚动而无法打开？

1 个答案:

避免将平滑的滚动侦听器附加到具有属性的链接上

在设置灯箱时删除平滑的滚动侦听器