jQuery单击功能在全宽下拉菜单上悬停转换

Question

我需要修改 jQuery 代码，因此当悬停在全宽下拉菜单上时，它会打开而不是单击它，但是当宽度小于 798 像素时，下拉菜单必须保持现在的状态，单击时打开。

我一直在尝试将 .click 更改为 .hover，但没有成功。在这种状态下，它会在悬停时打开下拉菜单，但在鼠标移出时它会立即关闭。

如果有人分享这个问题的解决方案会很好，因为这不是我的代码（免费下载）和我不擅长 JavaScript 编程。

谢谢你， CP

(function($) { // Begin jQuery
  $(function() { // DOM ready
    // If a link has a dropdown, add sub menu toggle.
    $('nav ul li a:not(:only-child)').click(function(e) {
      $(this).siblings('.nav-dropdown').toggle();
      // Close one dropdown when selecting another
      $('.nav-dropdown').not($(this).siblings()).hide();
      e.stopPropagation();
    });
    // Clicking away from dropdown will remove the dropdown class
    $('html').click(function() {
      $('.nav-dropdown').hide();
    });
    // Toggle open and close nav styles on click
    $('#nav-toggle').click(function() {
      $('nav ul').slideToggle();
    });
    // Hamburger to X toggle
    $('#nav-toggle').on('click', function() {
      this.classList.toggle('active');
    });
  }); // end DOM ready
})(jQuery); // end jQuery

@charset "UTF-8";
.navigation {
  height: 70px;
  background: #262626;
}

.brand {
  position: absolute;
  padding-left: 20px;
  float: left;
  line-height: 70px;
  text-transform: uppercase;
  font-size: 1.4em;
}

.brand a,
.brand a:visited {
  color: #ffffff;
  text-decoration: none;
}

.nav-container {
  max-width: 1000px;
  margin: 0 auto;
}

nav {
  float: right;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

nav ul li {
  float: left;
  position: relative;
}

nav ul li a,
nav ul li a:visited {
  display: block;
  padding: 0 20px;
  line-height: 70px;
  background: #262626;
  color: #ffffff;
  text-decoration: none;
}

nav ul li a:hover,
nav ul li a:visited:hover {
  background: #2581DC;
  color: #ffffff;
}

nav ul li a:not(:only-child):after,
nav ul li a:visited:not(:only-child):after {
  padding-left: 4px;
  content: ' ▾';
}

nav ul li ul li {
  min-width: 190px;
}

nav ul li ul li a {
  padding: 15px;
  line-height: 20px;
}

.nav-dropdown {
  position: absolute;
  display: none;
  z-index: 1;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.15);
}

/* Mobile navigation */
.nav-mobile {
  display: none;
  position: absolute;
  top: 8px;
  right: 10px;
  background: #262626;
  width: 70px;
}

@media only screen and (max-width: 798px) {
  .nav-mobile {
    display: block;
  }
  nav {
    width: 100%;
    padding: 70px 0 15px;
  }
  nav ul {
    display: none;
  }
  nav ul li {
    float: none;
  }
  nav ul li a {
    padding: 15px;
    line-height: 20px;
  }
  nav ul li ul li a {
    padding-left: 30px;
  }
  .nav-dropdown {
    position: static;
  }
}

@media screen and (min-width: 799px) {
  .nav-list {
    display: block !important;
  }
}

#nav-toggle {
  position: absolute;
  left: 18px;
  top: 22px;
  cursor: pointer;
  padding: 10px 35px 16px 0px;
}

#nav-toggle span,
#nav-toggle span:before,
#nav-toggle span:after {
  cursor: pointer;
  border-radius: 1px;
  height: 5px;
  width: 35px;
  background: #ffffff;
  position: absolute;
  display: block;
  content: '';
  transition: all 300ms ease-in-out;
}

#nav-toggle span:before {
  top: -10px;
}

#nav-toggle span:after {
  bottom: -10px;
}

#nav-toggle.active span {
  background-color: transparent;
}

#nav-toggle.active span:before, #nav-toggle.active span:after {
  top: 0;
}

#nav-toggle.active span:before {
  transform: rotate(45deg);
}

#nav-toggle.active span:after {
  transform: rotate(-45deg);
}

article {
  max-width: 1000px;
  margin: 0 auto;
  padding: 10px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<section class="navigation">
  <div class="nav-container">
    <div class="brand">
      <a href="#!">Logo</a>
    </div>
    <nav>
      <div class="nav-mobile"><a id="nav-toggle" href="#!"><span></span></a></div>
      <ul class="nav-list">
        <li>
          <a href="#!">Home</a>
        </li>
        <li>
          <a href="#!">About</a>
        </li>
        <li>
          <a href="#!">Services</a>
          <ul class="nav-dropdown">
            <li>
              <a href="#!">Web Design</a>
            </li>
            <li>
              <a href="#!">Web Development</a>
            </li>
            <li>
              <a href="#!">Graphic Design</a>
            </li>
          </ul>
        </li>
        <li>
          <a href="#!">Pricing</a>
        </li>
        <li>
          <a href="#!">Portfolio</a>
          <ul class="nav-dropdown">
            <li>
              <a href="#!">Web Design</a>
            </li>
            <li>
              <a href="#!">Web Development</a>
            </li>
            <li>
              <a href="#!">Graphic Design</a>
            </li>
          </ul>
        </li>
        <li>
          <a href="#!">Contact</a>
        </li>
      </ul>
    </nav>
  </div>
</section>

Answer 1

希望对您有所帮助，您只需要定位侦听器并设置 if 即可管理屏幕宽度。

可能更漂亮，如果需要会很乐意提供。

(function($) { // Begin jQuery
  $(function() { // DOM ready
    if ($(window).width() < 798) {
      // If a link has a dropdown, add sub menu toggle.
      $('nav ul li a:not(:only-child)').click(function(e) {
        $(this).siblings('.nav-dropdown').toggle();
        // Close one dropdown when selecting another
        $('.nav-dropdown').not($(this).siblings()).hide();
        e.stopPropagation();
      });
    } else {
      $('nav ul li a').hover(function(e) {
        $(this).siblings('.nav-dropdown').toggle();
        // Close one dropdown when selecting another
        $('.nav-dropdown').not($(this).siblings()).hide();
        e.stopPropagation();
      });
    }
    // Clicking away from dropdown will remove the dropdown class
    $('html').click(function() {
      $('.nav-dropdown').hide();
    });
    // Toggle open and close nav styles on click
    $('#nav-toggle').click(function() {
      $('nav ul').slideToggle();
    });
    // Hamburger to X toggle
    $('#nav-toggle').on('click', function() {
      this.classList.toggle('active');
    });
  }); // end DOM ready
})(jQuery); // end jQuery

$(window).resize(function() {
  location.reload();
});

@charset "UTF-8";
.navigation {
  height: 70px;
  background: #262626;
}

.brand {
  position: absolute;
  padding-left: 20px;
  float: left;
  line-height: 70px;
  text-transform: uppercase;
  font-size: 1.4em;
}

.brand a,
.brand a:visited {
  color: #ffffff;
  text-decoration: none;
}

.nav-container {
  max-width: 1000px;
  margin: 0 auto;
}

nav {
  float: right;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

nav ul li {
  float: left;
  position: relative;
}

nav ul li a,
nav ul li a:visited {
  display: block;
  padding: 0 20px;
  line-height: 70px;
  background: #262626;
  color: #ffffff;
  text-decoration: none;
}

nav ul li a:hover,
nav ul li a:visited:hover {
  background: #2581DC;
  color: #ffffff;
}

nav ul li a:not(:only-child):after,
nav ul li a:visited:not(:only-child):after {
  padding-left: 4px;
  content: ' ▾';
}

nav ul li ul li {
  min-width: 190px;
}

nav ul li ul li a {
  padding: 15px;
  line-height: 20px;
}

.nav-dropdown {
  position: absolute;
  display: none;
  z-index: 1;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.15);
}


/* Mobile navigation */

.nav-mobile {
  display: none;
  position: absolute;
  top: 8px;
  right: 10px;
  background: #262626;
  width: 70px;
}

@media only screen and (max-width: 798px) {
  .nav-mobile {
    display: block;
  }
  nav {
    width: 100%;
    padding: 70px 0 15px;
  }
  nav ul {
    display: none;
  }
  nav ul li {
    float: none;
  }
  nav ul li a {
    padding: 15px;
    line-height: 20px;
  }
  nav ul li ul li a {
    padding-left: 30px;
  }
  .nav-dropdown {
    position: static;
  }
}

@media screen and (min-width: 799px) {
  .nav-list {
    display: block !important;
  }
}

#nav-toggle {
  position: absolute;
  left: 18px;
  top: 22px;
  cursor: pointer;
  padding: 10px 35px 16px 0px;
}

#nav-toggle span,
#nav-toggle span:before,
#nav-toggle span:after {
  cursor: pointer;
  border-radius: 1px;
  height: 5px;
  width: 35px;
  background: #ffffff;
  position: absolute;
  display: block;
  content: '';
  transition: all 300ms ease-in-out;
}

#nav-toggle span:before {
  top: -10px;
}

#nav-toggle span:after {
  bottom: -10px;
}

#nav-toggle.active span {
  background-color: transparent;
}

#nav-toggle.active span:before,
#nav-toggle.active span:after {
  top: 0;
}

#nav-toggle.active span:before {
  transform: rotate(45deg);
}

#nav-toggle.active span:after {
  transform: rotate(-45deg);
}

article {
  max-width: 1000px;
  margin: 0 auto;
  padding: 10px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<section class="navigation">
  <div class="nav-container">
    <div class="brand">
      <a href="#!">Logo</a>
    </div>
    <nav>
      <div class="nav-mobile"><a id="nav-toggle" href="#!"><span></span></a></div>
      <ul class="nav-list">
        <li>
          <a href="#!">Home</a>
        </li>
        <li>
          <a href="#!">About</a>
        </li>
        <li>
          <a href="#!">Services</a>
          <ul class="nav-dropdown">
            <li>
              <a href="#!">Web Design</a>
            </li>
            <li>
              <a href="#!">Web Development</a>
            </li>
            <li>
              <a href="#!">Graphic Design</a>
            </li>
          </ul>
        </li>
        <li>
          <a href="#!">Pricing</a>
        </li>
        <li>
          <a href="#!">Portfolio</a>
          <ul class="nav-dropdown">
            <li>
              <a href="#!">Web Design</a>
            </li>
            <li>
              <a href="#!">Web Development</a>
            </li>
            <li>
              <a href="#!">Graphic Design</a>
            </li>
          </ul>
        </li>
        <li>
          <a href="#!">Contact</a>
        </li>
      </ul>
    </nav>
  </div>
</section>