html滑动仿悬浮球菜单效果的实现

css样式

html,body{
width: 100%;
height: 100%;
margin: 0;padding: 0;
}

/*导航图标*/
.NMH-g-navicon{
position: fixed;
top: 40%;
right: 020px;
width: 100px;
height: 100px;
}
.NMH-g-navicon.Jnmh-onleft{
right: auto;
left: 020px;
}
/*导航图标logo按钮*/
.NMH-g-navicon .Jnmh-btnlogo{
position: absolute;
display: block;
width: 100px;
height: 100px;
top: 50%;
right: 0;
margin-top: -50px;
border: 0;
background: url(img/icon_128.png) no-repeat center center;
background-size: 95% 95%;
border: 1px solid rgba(0, 0, 0, 0.1);
box-shadow: rgba(0, 0, 0, 0.12) 0px 6px 10px 0px;
outline: none;
border-radius: 50%;
z-index: 1;
}
.NMH-g-navicon .Jnmh-btnlogohover{
position: absolute;
display: block;
width: 100px;
height: 100px;
top: 50%;
right: 0;
margin: 0;padding: 0;
margin-top: -50px;
border: 0;
overflow: hidden;
/*background-color: red;*/
}

/*导航图标logo按钮-鼠标经过*/
.NMH-g-navicon.Jnmh-open .Jnmh-btnlogohover{
margin-top: -150px;
width: 200px;
height: 300px;
border-radius: 150px 0 0 150px;
}
.NMH-g-navicon.Jnmh-onleft .Jnmh-btnlogohover{
left: 0;
right: auto;
border-radius: 0 150px 150px 0;
}
/*导航图标菜单子容器*/
.NMH-g-navicon .Jnmh-m-submenu{
position: absolute;
background-color: transparent;
list-style: none;
top: -020px;
bottom: -020px;
left: -020px;
right: -020px;
margin: 0;
padding: 0;
}

.NMH-g-navicon .Jnmh-m-submenu .Jnmh-subli{
position: absolute;
width: 100%;height: 100%;
transform: rotate(0deg);
-webkit-transform: rotate(0deg);
transition: all 0.8s ease-in-out;
}

.Jnmh-m-submenu .Jnmh-subdl{
position: absolute;
left: 50%;
bottom: 100%;
width: 0;
height: 0;
line-height: 1px;
margin-left: 0;
background: #fff;
border-radius: 50%;
text-align: center;
font-size: 1px;
overflow: hidden;
cursor: pointer;
box-shadow: none;
transition: all 0.8s ease-in-out, color 0.1s, background 0.1s;
}
/*导航图标-展开菜单时*/
.NMH-g-navicon.Jnmh-open .Jnmh-m-submenu .Jnmh-subdl{
width: 80px;
height: 80px;
line-height: 80px;
margin-left: -40px;
box-shadow: 0 3px 3px rgba(0, 0, 0, 0.1);
font-size: 14px;
}
/*导航图标-三级菜单容器*/
.NMH-g-navicon.Jnmh-open .Jnmh-m-submenu .Jnmh-subdd{
position: absolute;
line-height: normal;
}

html代码

javascript代码

// 鼠标拖动logo移动
$(document).on(\’mousedown\’,\’.Jnmh-btnlogo\’,function(e_down){
var wrap = $(\’#nmh-navicon\’);
wrap.removeClass(\’Jnmh-open\’);
$(\’.Jnmh-m-submenu\’).hide();
GtoggleNavlogo();

var positionDiv = wrap.offset();
var distenceX = e_down.pageX – positionDiv.left;
var distenceY = e_down.pageY – positionDiv.top + $(document).scrollTop();
$(document).mousemove(diy_move);
function diy_move(e_move){
var x = e_move.pageX – distenceX;
var y = e_move.pageY – distenceY;

if (x < 0) {
x = 0;
} else if (x > $(document).width() – wrap.outerWidth(true)) {
x = $(document).width() – wrap.outerWidth(true);
}

if (y < 0) {
y = 0;
} else if (y > $(window).height() – wrap.outerHeight(true)) {
y = $(window).height() – wrap.outerHeight(true);
}

$(wrap).css({
\’left\’: x + \’px\’,
\’top\’: y + \’px\’
});
}
$(document).mouseup(function() {
var x = $(wrap).offset().left;
var rm = \’\’,ad = \’Jnmh-open\’;
if(x > $(document).width()/2){
x = $(document).width() – wrap.outerWidth(true) -10 ;
rm = \’Jnmh-onleft\’;
}else{
x = 10;
ad += \’ Jnmh-onleft\’;
}
$(wrap).css({left: x + \’px\’}).addClass(ad).removeClass(rm);
$(\’.Jnmh-m-submenu\’).show();
GtoggleNavlogo();
$(document).unbind(\’mousemove\’,diy_move);
});