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jquery navigation beyond lateral sliding

王林
王林Original
2023-05-28 16:38:40652browse

In modern web design, navigation menu is a very important component. With the popularity of mobile devices, the diversity of screen sizes has led to several challenges. When there are too many elements in a navigation menu, it can exceed the width of the screen, so a way is needed to allow users to access all options. In this article, we will introduce how to use jQuery to implement a horizontal sliding navigation menu.

First, we need to prepare the HTML structure and style. The following is a basic navigation menu structure:

<div class="nav-container">
  <ul class="nav">
    <li><a href="#">Home</a></li>
    <li><a href="#">About Us</a></li>
    <li><a href="#">Products</a></li>
    <li><a href="#">Contact Us</a></li>
    <li><a href="#">Blog</a></li>
    <li><a href="#">FAQs</a></li>
    <li><a href="#">Support</a></li>
    <li><a href="#">Join Us</a></li>
  </ul>
</div>

We use CSS to arrange this navigation menu horizontally and set their width and other styles.

.nav-container {
  overflow-x: scroll;
  white-space: nowrap;
}

.nav {
  display: inline-block;
  list-style-type: none;
  margin: 0;
  padding: 0;
  width: 100%;
}

.nav li {
  display: inline-block;
  text-align: center;
  width: 120px;
}

.nav li a {
  display: block;
  padding: 10px;
  text-decoration: none;
}

Now, we have the basic HTML and CSS ready. Next, we'll use jQuery to make the navigation menu slide horizontally. We will create an effect where the navigation menu slides horizontally when the arrow button is clicked.

First, we need to add a click event handler for the arrow button. Here is a jQuery code snippet that will detect left and right arrow button clicks and move the navigation menu based on the direction of the arrow buttons:

$('.nav-arrow').on('click', function() {
  var direction = $(this).data('direction');
  var distance = $('.nav li:first-child').outerWidth();

  if (direction === 'prev') {
    $('.nav-container').animate({scrollLeft: '-=' + distance});
  } else {
    $('.nav-container').animate({scrollLeft: '+=' + distance});
  }
});

We added a data-direction attribute to the arrow buttons to differentiate between the left and right arrows button. When the user clicks on the arrow button, we will detect its data-direction property and use jQuery's animate() method to smoothly move the navigation menu's position.

We can also add some interactive effects to improve the user experience. For example, when the user reaches the far left or right end of the navigation menu, we can disable the corresponding arrow buttons.

$('.nav-container').on('scroll', function() {
  var distance = $('.nav li:first-child').outerWidth();
  var scrollLeft = $(this).scrollLeft();

  if (scrollLeft === 0) {
    $('.nav-arrow.prev').addClass('disabled');
  } else {
    $('.nav-arrow.prev').removeClass('disabled');
  }

  if (scrollLeft + distance >= $('.nav').outerWidth()) {
    $('.nav-arrow.next').addClass('disabled');
  } else {
    $('.nav-arrow.next').removeClass('disabled');
  }
});

We added a scroll event handler to detect the scroll position of the navigation menu. When scrolling to the far left, we add a disabled class to the left arrow button so that it cannot be clicked. Likewise, we add the disabled class for the right arrow button when scrolling to the far right.

Finally, we can add an initialization function to set the initial state of the arrow buttons and navigation menu.

function initNav() {
  var distance = $('.nav li:first-child').outerWidth();
  var navWidth = $('.nav').outerWidth();
  var containerWidth = $('.nav-container').outerWidth();

  if (navWidth > containerWidth) {
    $('.nav-arrow.next').removeClass('disabled');
  }

  $('.nav-arrow').css('top', ($('.nav').outerHeight() / 2 - $('.nav-arrow').outerHeight() / 2));

  $('.nav li').each(function() {
    var itemWidth = $(this).outerWidth();
    if (itemWidth > distance) {
      distance = itemWidth;
    }
  });

  $('.nav li').each(function() {
    $(this).css('width', distance + 'px');
  });
}

initNav();

In the initNav() function, we first detect the width of the navigation menu and the width of the container. If the width of the navigation menu exceeds the width of the container, we will enable the right arrow button.

Next, we center the arrow buttons vertically and set the navigation menu items to be equal width. Since the width of each menu item may be different, we need to detect and set the maximum width of the menu item.

So far, we have completed using jQuery to achieve the horizontal sliding effect of the navigation menu. You can view the complete code implementation on the following JSFiddle:

https://jsfiddle.net/36qa5x1t/

Summary:

This article explains how to use jQuery to implement navigation The effect of horizontal menu sliding. We introduced the basic HTML and CSS structure and polished this navigation menu by adding click and scroll event handlers and some interactive effects. I hope that through this article, you can better understand how to use jQuery to achieve interactive effects on web pages.

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