如何使用jScrollPane实现实时滚动条动效

Scrollbar Visibility with jScrollPane 滚动条只在鼠标停留在图文列表上时出现（也就是只在需要时实时出现，其他时间隐藏以避免干扰用户视觉）。

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<!DOCTYPE html>
<html lang="en">
    <head>
        <link rel="stylesheet" type="text/css" href="https://tympanus.net/Tutorials/ScrollbarVisibility/css/demo.css" />
		<link rel="stylesheet" type="text/css" href="https://tympanus.net/Tutorials/ScrollbarVisibility/css/style.css" />
		<link rel="stylesheet" type="text/css" href="https://tympanus.net/Tutorials/ScrollbarVisibility/css/jquery.jscrollpane.codrops1.css" />
		<script type="text/javascript" src="https://wow.techbrood.com/libs/jquery/jquery.min.js"></script>
		
		<script type="text/javascript" src="https://tympanus.net/Tutorials/ScrollbarVisibility/js/jquery.mousewheel.js"></script>
		
		<script type="text/javascript" src="https://tympanus.net/Tutorials/ScrollbarVisibility/js/jquery.jscrollpane.min.js"></script>
		<script type="text/javascript" src="https://tympanus.net/Tutorials/ScrollbarVisibility/js/scroll-startstop.events.jquery.js"></script>
		<link href='https://fonts.googleapis.com/css?family=PT+Sans+Narrow&v1' rel='stylesheet' type='text/css' />
		<link href='https://fonts.googleapis.com/css?family=PT+Serif+Caption:400,400italic' rel='stylesheet' type='text/css' />
	</head>
	<body>
		<div class="container">
			<h1>Scrollbar Visibility <br /> with jScrollPane<span> Hover over the content to see the scrollbar appear</span></h1>
            <div class="wrapper">
				<div class="content">
					<p><strong>Example 1</strong> shows how the scrollbar will appear when hovering over the content area and disappear 
					when leaving the area and also after a certain time of inactivity.
					<p>When scrolling with the mousewheel, the scrollbar will appear and when stopping, the scrollbar will disappear again (after a predefined time).</p>
					<p>The scrollbar will not hide if we are hovering over it. </p>
				</div>
				<div id="jp-container" class="jp-container">
					<a target="_blank" href="https://tympanus.net/codrops/2011/09/20/responsive-image-gallery/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/16.jpg"/>
						<div>
							<h3>Responsive Image Gallery with Thumbnail Carousel</h3>
							A tutorial on how to create a responsive image gallery with a thumbnail carousel using Elastislide. Inspired by Twitter's "user gallery" and upon a request to show an integration of Elastislide, we want to implement a responsive gallery that adapts to the view-port width. The gallery will have a view switch that allows to view it with the thumbnail carousel or without. We'll also add the possibility to navigate with the keyboard.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/09/12/elastislide-responsive-carousel/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/15.jpg"/>
						<div>
							<h3>Elastislide - A Responsive jQuery Carousel Plugin</h3>
							With the responsive awakening in web design it becomes important to not only take care of the visual part of a website but also of the functionality. Elastislide is a responsive jQuery carousel that will adapt its size and its behavior in order to work on any screen size. Inserting the carousels structure into a container with a fluid width will also make the carousel fluid.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/09/05/slicebox-3d-image-slider/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/14.jpg"/>
						<div>
							<h3>Slicebox - A fresh 3D image slider with graceful fallback</h3>
							With the CSS3 3D transformations we can create some neat effects by transforming elements in three-dimensional space. Slicebox makes use of the 3D transforms properties and allows different kind of effects. The main idea is to create three-dimensional image slices that will rotate and reveal the next image as another side of the 3d object. In case the browser does not support 3D transformations, a simple slider will be used as fallback.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/08/30/automatic-image-montage/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/13.jpg"/>
						<div>
							<h3>Automatic Image Montage with jQuery</h3>
							Arranging images in a montage like fashion can be a challenging task when considering certain constraints, like the window size when using fullscreen, the right image number to fill all the available space or also the size of the images in use. With the following script you can automatically create a montage, either for a liquid container or a fixed size container (including fullscreen), with the option to fill all the gaps.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/08/23/image-zoom-tour/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/12.jpg"/>
						<div>
							<h3>Image Zoom Tour with jQuery</h3>
							Today we want to share a little zoom tour script with you. Showing a main image initially, we want to be able to zoom into certain parts of the image by clicking on tags, using another image for the closer view. This next step can contain other tags that again allow to show more images. 
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/08/16/circular-content-carousel/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/11.jpg"/>
						<div>
							<h3>Circular Content Carousel with jQuery</h3>
							Today we want to share a simple circular content carousel with you. The idea is to have some content boxes that we can slide infinitely (circular). When clicking on the more link, the respective item moves to the left and a content area will slide out. Now we can navigate through the carousel where each step will reveal the next or previous content box with its expanded content. 
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/08/09/portfolio-image-navigation/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/10.jpg"/>
						<div>
							<h3>Portfolio Image Navigation with jQuery</h3>
							Today we want to create a portfolio image navigation template with jQuery. The idea is to show some portfolio items in a grouped fashion and navigate through them in all 2D ways (horizontal/vertical). Either the arrows or the little boxes below the current image can be used in order to navigate.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/08/04/fullscreen-grid-portfolio/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/9.jpg"/>
						<div>
							<h3>Expanding Fullscreen Grid Portfolio</h3>
							Today we want to share a neat experimental portfolio template with you. The main idea is to have a grid layout that we create with jQuery Masonry. Clicking to view more, we expand the according item to fullscreen in order to show a longer description of the item and a representative fullscreen background image.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/07/29/content-rotator/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/8.jpg"/>
						<div>
							<h3>Content Rotator with jQuery</h3>
							Today we want to share a fancy content rotator with you. It shows some image with a headline and sub-headline in each slide and allows navigating through the slides using the thumbnails that also contain a headline. Hiding the thumbnails will reveal a scrollable text container and the navigation arrows will move up so that one can navigate to the previous or next slides.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/07/22/vertical-sliding-accordion/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/7.jpg"/>
						<div>
							<h3>Vertical Sliding Accordion with jQuery</h3>
							Today we want to share a slick and flexible vertical jQuery accordion with you. The main idea is to expand the accordion slices on click and show some more information. The other slices will become less opaque and squeezed. When navigating to the next slice using one navigation arrows, a new slice will slide in from the top or the bottom. Once a slice is open and we navigate, the subsequent slice will open on slide.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/07/12/animated-text-and-icon-menu/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/6.jpg"/>
						<div>
							<h3>Animated Text and Icon Menu with jQuery</h3>
							Today we want to show you how to create a slick menu with a nice animation feature on hover. The idea is to make some elements slide out, change and animate the background color of the item and then slide the elements back in with a different color.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/07/05/fullscreen-slideshow-with-html5-audio/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/5.jpg"/>
						<div>
							<h3>Fullscreen Slideshow with HTML5 Audio and jQuery</h3>
							In today's tutorial we'll create a fullscreen photo slideshow to illustrate a New York picture series. We will add sounds with the HTML5 audio element in order to give life to the gallery and try to recreate the ambient of this vibrant city.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/07/03/sliding-background-image-menu/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/4.jpg"/>
						<div>
							<h3>Sliding Background Image Menu with jQuery</h3>
							Today we want to share another jQuery menu with you. This menu will have several panels, each one corresponding to a different background image that will show on all panels when we hover over a panel label. Also, a submenu will slide out from the bottom. This menu comes with some configuration possibilities, such as the size of the image, the hover effect and custom default states.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/06/09/grid-navigation-effects/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/3.jpg"/>
						<div>
							<h3>Grid Navigation Effects with jQuery</h3>
							Today we want to share some neat grid navigation effects using jQuery. In our examples we will show you ten ways how to navigate through a set of thumbnails. We'll take a look at some of the possibilities and how to apply the effect.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/05/25/image-wall/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/2.jpg"/>
						<div>
							<h3>Image Wall with jQuery</h3>
							Today we want to show you how to create a neat image wall with jQuery. The idea is to scatter some thumbnails with different sizes on the page and make a ribbon slide in when we click on the picture. The ribbon will show some description next to the picture and when clicking again on the thumbnail, the ribbon will close and open again with a large version of the image.
						</div>
					</a>
					<a target="_blank" href="https://tympanus.net/codrops/2011/05/09/sliding-letters-with-jquery/">
						<img src="https://tympanus.net/Tutorials/ScrollbarVisibility/images/thumbs/1.jpg"/>
						<div>
							<h3>Sliding Letters with jQuery</h3>
							Today we have a neat little effect for you. We want to bring some life to the standard hover effect by playing around with the letters in an anchor word. The aim is to slide in letter by letter when hovering over a link element. We can either have the same word or a different one and we can slide in the new letters all the same time or one after the other.
						</div>
					</a>
				</div>
				<div class="clr"></div>
			</div>
		</div>
		<script type="text/javascript">
			$(function() {
			
				// the element we want to apply the jScrollPane
				var $el					= $('#jp-container').jScrollPane({
					verticalGutter 	: -16
				}),
						
				// the extension functions and options 	
					extensionPlugin 	= {
						
						extPluginOpts	: {
							// speed for the fadeOut animation
							mouseLeaveFadeSpeed	: 500,
							// scrollbar fades out after hovertimeout_t milliseconds
							hovertimeout_t		: 1000,
							// if set to false, the scrollbar will be shown on mouseenter and hidden on mouseleave
							// if set to true, the same will happen, but the scrollbar will be also hidden on mouseenter after "hovertimeout_t" ms
							// also, it will be shown when we start to scroll and hidden when stopping
							useTimeout			: true,
							// the extension only applies for devices with width > deviceWidth
							deviceWidth			: 980
						},
						hovertimeout	: null, // timeout to hide the scrollbar
						isScrollbarHover: false,// true if the mouse is over the scrollbar
						elementtimeout	: null,	// avoids showing the scrollbar when moving from inside the element to outside, passing over the scrollbar
						isScrolling		: false,// true if scrolling
						addHoverFunc	: function() {
							
							// run only if the window has a width bigger than deviceWidth
							if( $(window).width() <= this.extPluginOpts.deviceWidth ) return false;
							
							var instance		= this;
							
							// functions to show / hide the scrollbar
							$.fn.jspmouseenter 	= $.fn.show;
							$.fn.jspmouseleave 	= $.fn.fadeOut;
							
							// hide the jScrollPane vertical bar
							var $vBar			= this.getContentPane().siblings('.jspVerticalBar').hide();
							
							/*
							 * mouseenter / mouseleave events on the main element
							 * also scrollstart / scrollstop - @James Padolsey : https://james.padolsey.com/javascript/special-scroll-events-for-jquery/
							 */
							$el.bind('mouseenter.jsp',function() {
								
								// show the scrollbar
								$vBar.stop( true, true ).jspmouseenter();
								
								if( !instance.extPluginOpts.useTimeout ) return false;
								
								// hide the scrollbar after hovertimeout_t ms
								clearTimeout( instance.hovertimeout );
								instance.hovertimeout 	= setTimeout(function() {
									// if scrolling at the moment don't hide it
									if( !instance.isScrolling )
										$vBar.stop( true, true ).jspmouseleave( instance.extPluginOpts.mouseLeaveFadeSpeed || 0 );
								}, instance.extPluginOpts.hovertimeout_t );
								
								
							}).bind('mouseleave.jsp',function() {
								
								// hide the scrollbar
								if( !instance.extPluginOpts.useTimeout )
									$vBar.stop( true, true ).jspmouseleave( instance.extPluginOpts.mouseLeaveFadeSpeed || 0 );
								else {
								clearTimeout( instance.elementtimeout );
								if( !instance.isScrolling )
										$vBar.stop( true, true ).jspmouseleave( instance.extPluginOpts.mouseLeaveFadeSpeed || 0 );
								}
								
							});
							
							if( this.extPluginOpts.useTimeout ) {
								
								$el.bind('scrollstart.jsp', function() {
								
									// when scrolling show the scrollbar
								clearTimeout( instance.hovertimeout );
								instance.isScrolling	= true;
								$vBar.stop( true, true ).jspmouseenter();
								
							}).bind('scrollstop.jsp', function() {
								
									// when stop scrolling hide the scrollbar (if not hovering it at the moment)
								clearTimeout( instance.hovertimeout );
								instance.isScrolling	= false;
								instance.hovertimeout 	= setTimeout(function() {
									if( !instance.isScrollbarHover )
											$vBar.stop( true, true ).jspmouseleave( instance.extPluginOpts.mouseLeaveFadeSpeed || 0 );
									}, instance.extPluginOpts.hovertimeout_t );
								
							});
							
								// wrap the scrollbar
								// we need this to be able to add the mouseenter / mouseleave events to the scrollbar
							var $vBarWrapper	= $('<div/>').css({
								position	: 'absolute',
								left		: $vBar.css('left'),
								top			: $vBar.css('top'),
								right		: $vBar.css('right'),
								bottom		: $vBar.css('bottom'),
								width		: $vBar.width(),
								height		: $vBar.height()
							}).bind('mouseenter.jsp',function() {
								
								clearTimeout( instance.hovertimeout );
								clearTimeout( instance.elementtimeout );
								
								instance.isScrollbarHover	= true;
								
									// show the scrollbar after 100 ms.
									// avoids showing the scrollbar when moving from inside the element to outside, passing over the scrollbar								
								instance.elementtimeout	= setTimeout(function() {
									$vBar.stop( true, true ).jspmouseenter();
								}, 100 );	
								
							}).bind('mouseleave.jsp',function() {
								
									// hide the scrollbar after hovertimeout_t
								clearTimeout( instance.hovertimeout );
								instance.isScrollbarHover	= false;
								instance.hovertimeout = setTimeout(function() {
										// if scrolling at the moment don't hide it
									if( !instance.isScrolling )
											$vBar.stop( true, true ).jspmouseleave( instance.extPluginOpts.mouseLeaveFadeSpeed || 0 );
									}, instance.extPluginOpts.hovertimeout_t );
								
							});
							
							$vBar.wrap( $vBarWrapper );
							
						}
						
						}
						
					},
					
					// the jScrollPane instance
					jspapi 			= $el.data('jsp');
					
				// extend the jScollPane plugin	
				$.extend( true, jspapi, extensionPlugin );
				jspapi.addHoverFunc();
			
			});
		</script>
	</body>
</html>

Scrollbar Visibility with jScrollPane 滚动条只在鼠标停留在图文列表上时出现（也就是只在需要时实时出现，其他时间隐藏以避免干扰用户视觉）。

模板，教程

编辑器支持Emmet

快捷键

Scrollbar Visibility with jScrollPane 滚动条只在鼠标停留在图文列表上时出现（也就是只在需要时实时出现，其他时间隐藏以避免干扰用户视觉）。

模板，教程

使用CSS3 transforms和jQuery实现图片悬停时的3D折叠动效

使用CSS clip和transition实现可扩展浮层效果（带斜向掉落动画）

编辑器支持Emmet

快捷键

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