Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Détecte si un élément entre ou sort du viewport pour lui ajouter ou enlever une class CSS
(function($) {
/**
* Copyright 2012, Digital Fusion
* Licensed under the MIT license.
* http://teamdf.com/jquery-plugins/license/
*
* @author Sam Sehnert
* @desc A small plugin that checks whether elements are within
* the user visible viewport of a web browser.
* only accounts for vertical position, not horizontal.
*/
$.fn.visible = function(partial) {
var $t = $(this),
$w = $(window),
viewTop = $w.scrollTop(),
viewBottom = viewTop + $w.height(),
_top = $t.offset().top,
_bottom = _top + $t.height(),
compareTop = partial === true ? _bottom : _top,
compareBottom = partial === true ? _top : _bottom;
return ((compareBottom <= viewBottom) && (compareTop >= viewTop));
};
})(jQuery);
function onViewport( element, className ){
$( element ).each(function(i, el) {
var el = $(el);
if (el.visible(true)) {
el.addClass( className );
} else {
el.removeClass( className );
}
});
}
onViewport( ".svg-container", "animated" );
$(window).scroll(function(event) {
onViewport( ".svg-container", "animated" );
});
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.