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

div id="nmh-navicon" class="NMH-g-plugin NMH-g-navicon">
    		button class="Jnmh-btnlogo">
    /button>
    		ins class="Jnmh-btnlogohover">
    /ins>
    		ul class="Jnmh-m-submenu">
    			li class="Jnmh-subli">
    				dl class="Jnmh-subdl">
    					dt class="NMH-subdt">
    电商平台/dt>
    					dd class="NMH-subdd">
    /dd>
    				/dl>
    			/li>
    			li class="Jnmh-subli">
    				dl class="Jnmh-subdl">
    					dt class="NMH-subdt">
    选品平台/dt>
    					dd class="NMH-subdd">
    /dd>
    				/dl>
    			/li>
    			li class="Jnmh-subli">
    				dl class="Jnmh-subdl">
    					dt class="NMH-subdt">
    会员升级/dt>
    					dd class="NMH-subdd">
    /dd>
    				/dl>
    			/li>
    			li class="Jnmh-subli">
    				dl class="Jnmh-subdl">
    					dt class="NMH-subdt">
    产品操作/dt>
    					dd class="NMH-subdd">
    /dd>
    				/dl>
    			/li>
    			li class="Jnmh-subli">
    				dl class="Jnmh-subdl">
    					dt class="NMH-subdt">
    个人中心/dt>
    					dd class="NMH-subdd">
    /dd>
    				/dl>
    			/li>
    		/ul>
    	/div>
    

javascript代码

script type="text/javascript" src="https://apps.bdimg.COM/libs/jquery/2.1.4/jquery.min.js">
    /script>
    script type="text/javascript">
	// 监听鼠标移入logo事件	$(document).on('mouseenter','.Jnmh-btnlogo',function(){
    		$('#nmh-navicon').addClass('Jnmh-open');
    		GtoggleNavlogo();
	}
    );
	// 监听鼠标移除导航球移除事件（展开收缩悬浮球为什么不直接监听#nmh-navicon而多了一步监听logo是为了减少边缘触发）	$(document).on('mouseleave','#nmh-navicon',function(){
    		$('#nmh-navicon').removeClass('Jnmh-open');
    		GtoggleNavlogo();
	}
    );
	VAR GtoggleNavlogo = function(){
    	    var li = $('#nmh-navicon').find('.Jnmh-subli');
    	    var lilen = li.length;
    	    var avgDeg =  180/(lilen-1);
    // 平均角度	    var initDeg = 0;
// 起始方向角度	    if($('#nmh-navicon').hasClass('Jnmh-onleft')){
	    	// 如果悬浮球被拖拽到左边，则二级菜单则显示右侧	    	li.css({
transform: 'rotate(0deg)'}
    );
    	    	initDeg =  180;
	    }
else{
	    	// 默认悬浮球在右边，二级菜单显示在左侧	    	li.css({
transform: 'rotate(-360deg)'}
    );
	    }
    	    for(var i=0,j=lilen-1;
     ililen;
 i++,j--) {
    	        var d =  initDeg - (i*avgDeg);
    	        var z = initDeg?j:i;
    	        // console.log(d);
    	        $('#nmh-navicon').hasClass('Jnmh-open') ? GrotateNavlogo(li[z],d) : GrotateNavlogo(li[z],0);
	    }
	}
    ;
	var GrotateNavlogo = function(dom,deg){
		$({
a:0}
).aniMATE({
a:deg}
, {
	        step: function(now,fx) {
	            $(dom).css({
 transform: 'rotate('+now+'deg)' }
    );
	            $(dom).children().css({
 transform: 'rotate('+(-now)+'deg)' }
    );
	        }
, duration: 0	    }
    );
	}
	// 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);
	    }
    );
	}
    );
    /script>
    

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