我正在考虑制作自定义滚动条jQuery插件,有很多插件可用,但我想自己制作,问题是我没有得到这样的概念,我应该如何移动其他div元素(滚动条)和如何使用鼠标滚轮移动内容？
请帮我理解这一点.
谢谢
解决方法
最简单的概念是使用jQuery UI draggable并将.draggable()方法附加到.scrollbar
var $scrollable = $(".scrollable"),$scrollbar = $(".scrollbar"),height = $scrollable.outerHeight(true),// visible height
scrollHeight = $scrollable.prop("scrollHeight"),// total height
barHeight = height * height / scrollHeight; // Scrollbar height!
// Scrollbar drag:
$scrollbar.height( barHeight ).draggable({
axis : "y",containment : "parent",drag: function(e,ui) {
$scrollable.scrollTop( scrollHeight / height * ui.position.top );
}
});
// Element scroll:
$scrollable.on("scroll",function() {
$scrollbar.css({top: $scrollable.scrollTop() / height * barHeight });
});
.parent{
position:relative;
overflow:hidden;
height:200px;
width:180px;
background:#ddd;
}
.scrollable{
overflow-y:scroll;
position:absolute;
padding:0 17px 0 0;
width: 180px;
height:100%;
}
.scrollbar{
cursor:n-resize;
position:absolute;
overflow:auto;
top:0px;
right:0px;
z-index:2;
background:#444;
width:17px;
border-radius:8px;
}
<script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
<script src="//code.jquery.com/ui/1.11.0/jquery-ui.min.js"></script>
<div class="parent">
<div class="scrollbar"></div>
<div class="scrollable">
Lorem ipsum dolor sit amet,consectetur adipiscing elit. Cras non nunc eget sapien molestie mollis. Proin vestibulum vehicula varius. Duis a nunc ac risus facilisis consectetur.
Lorem ipsum dolor sit amet,consectetur adipiscing elit. Cras non nunc eget sapien molestie mollis. Proin vestibulum vehicula varius. Duis a nunc ac risus facilisis consectetur.
Lorem ipsum dolor sit amet,consectetur adipiscing elit. Cras non nunc eget sapien molestie mollis. Proin vestibulum vehicula varius. Duis a nunc ac risus facilisis consectetur.
</div>
</div>
以上只是一个需要逻辑和数学的例子,它错过了“隐藏滚动条”,只是为了保持简单.我会给你添加所有需要的调整,插件.