I will directly introduce the production process to you, I hope you will like it.
HTML structure
The HTML structure of this page switching effect uses a
<main> <div class="cd-index cd-main-content"> <div> <h1>Page Transition</h1> <!-- your content here --> </div> </div> </main> <div class="cd-cover-layer"></div> <!-- this is the cover layer --> <div class="cd-loading-bar"></div> <!-- this is the loading bar -->
CSS style
This page switching effect uses body::before and body::after pseudo-elements to create two mask layers to cover the page content during the page switching process. Their positioning is fixed, with a height equal to 50vh and a width of 100%. By default, they are hidden using the CSS transform property (translateY(-100%)/translateY(100%)). When the user switches pages, these elements are moved back into the viewport (by adding the .page-is-changing class to the
element).Page switching effects
body::after, body::before { /* these are the 2 half blocks which cover the content once the animation is triggered */ height: 50vh; width: 100%; position: fixed; left: 0; } body::before { top: 0; transform: translateY(-100%); } body::after { bottom: 0; transform: translateY(100%); } body.page-is-changing::after, body.page-is-changing::before { transform: translateY(0); }
When the page switches, the fade-in and fade-out effect of the page content is achieved by changing the transparency of div.cd-cover-layer. It overlays the .cd-main-content element with the same background color, and then changes the transparency from 0 to 1 when the
is added with the .page-is-changing class..cd-loading-bar { /* this is the loading bar - visible while switching from one page to the following one */ position: fixed; height: 2px; width: 90%; } .cd-loading-bar::before { /* this is the progress bar inside the loading bar */ position: absolute; left: 0; top: 0; height: 100%; width: 100%; transform: scaleX(0); transform-origin: left center; } .page-is-changing .cd-loading-bar::before { transform: scaleX(1); }
Smooth transition effects in special effects are achieved using CSS Transitions. Different transition-delays are added to each animated element to achieve different element animation sequences.
JAVASCRIPT
The data-type="page-transition" attribute is used on the link in this page switching effect to trigger the page switching event. When the plug-in detects a user click event, the changePage() method will be executed.
$('main').on('click', '[data-type="page-transition"]', function(event){ event.preventDefault(); //detect which page has been selected var newPage = $(this).attr('href'); //if the page is not animating - trigger animation if( !isAnimating ) changePage(newPage, true); });
This method will trigger the page switching animation and load new content through the loadNewContent() method.
function changePage(url, bool) { isAnimating = true; // trigger page animation $('body').addClass('page-is-changing'); //... loadNewContent(url, bool); //... }
When new content is loaded, it will replace the content in the original
function loadNewContent(url, bool) { var newSectionName = 'cd-'+url.replace('.html', ''), section = $('<div class="cd-main-content '+newSectionName+'"></div>'); section.load(url+' .cd-main-content > *', function(event){ // load new content and replace <main> content with the new one $('main').html(section); //... $('body').removeClass('page-is-changing'); //... if(url != window.location){ //add the new page to the window.history window.history.pushState({path: url},'',url); } }); }
In order to trigger the same page switching animation effect when the user clicks the browser's back button, the plug-in listens to the popstate event and executes the changePage() function when it is triggered.
$(window).on('popstate', function() { var newPageArray = location.pathname.split('/'), //this is the url of the page to be loaded newPage = newPageArray[newPageArray.length - 1]; if( !isAnimating ) changePage(newPage); });