markdown SVG动画汉堡菜单

Posted 2021-05-06

<div class="container">
	<a class="navButton" href="#">
		<div>
			<svg xmlns="http://www.w3.org/2000/svg" width="50" height="40" viewBox="0 0 50 40">
				<line class="topLine" fill="none" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-miterlimit="10" x1="8" y1="16" x2="34" y2="16"/>
				<line class="midLine" fill="none" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-miterlimit="10" x1="8" y1="25" x2="34" y2="25"/>
				<line class="botLine" fill="none" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-miterlimit="10" x1="8" y1="34" x2="34" y2="34"/>
				<polyline class="roof" fill="none" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" points="5,11 21,2 37,11"/>
				<line class="arrowBody" fill="none" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-miterlimit="10" x1="8" y1="25" x2="48" y2="25"/>
				<polyline class="arrowPoint" fill="none" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" points="42,32 48,25 42,19"/>
			</svg>
		</div>
	</a>
	<div class="panel">
		<div></div>
		<div></div>
		<div></div>
	</div>
</div>

var
	navButton = $('.navButton'),
    	panel = $('.panel'),
	topLine = $('.topLine'),
    	midLine = $('.midLine'),
    	botLine = $('.botLine'),
    	roof = $('.roof'),
    	arrowBody = $('.arrowBody'),
    	arrowPoint = $('.arrowPoint'),
    	hoverTL, homeTL, slideTween,
    	state = "closed"
;
var arrowValues = {x1: 42, y1: 25, x2: 48, y2: 25, x3: 42, y3: 25};
var roofValues = {x1: 5, y1: 11, x2: 21, y2: 2, x3: 37, y3: 11};
var valuesString, roofValuesString;

TweenMax.set([roof, arrowBody, arrowPoint], {autoAlpha: 0});
TweenMax.set(navButton, {x: 315, y: 10});
TweenMax.set(panel, {x: 375});
//TweenMax.set(arrowPoint, {drawSVG: "50% 50%"});

hoverTL = new TimelineMax({paused: true, repeat: 0});
hoverTL
	//.set(arrowPoint, {autoAlpha: 0, drawSVG: "50% 50%"})
	.set(arrowPoint, {autoAlpha: 0, attr: {points: "42,25 48,25 42,25"}})
	.to(midLine, .2, {attr: {x2: 48}, ease: Circ.easeInOut})
	.to([topLine,botLine], .2, {attr: {x2: 29}, ease: Circ.easeInOut}, "-=.25")
	.set(arrowPoint, {autoAlpha: 1})
	//.to(arrowPoint, .25, {drawSVG: "0 100%", ease: Circ.easeOut}, "-=.25")
	.to(arrowValues, .2, {y1: 32, y3: 18, ease: Circ.easeOut, onUpdate: function(e) {
		valuesString = arrowValues.x1 + "," + arrowValues.y1 + " " + arrowValues.x2 + "," + arrowValues.y2 + " " + arrowValues.x3 + "," + arrowValues.y3;
		//console.log("valuesString: " + valuesString);
		TweenMax.set(arrowPoint, {attr: {points: valuesString}});
	}})
;
//hoverTL.play();

homeTL = new TimelineMax({paused: true, repeat: 0});
homeTL
	.set([topLine,midLine], {y: 0, attr: {x2: 34}})
	.set(roof, {attr: {points: "5,11 21,2 37,11"}})
	.set(roof, {autoAlpha: 1, drawSVG: "50% 50%"})
	.to(roof, .25, {drawSVG: "0 100%", ease: Circ.easeInOut})
	.to(topLine, .25, {rotation: 90, transformOrigin: "top left", attr: {x2: 23}}, "-=.25")
	.to(midLine, .25, {rotation: -90, transformOrigin: "top right", y: -19, attr: {x2: 23}}, "-=.25")
;

navButton.on("mouseover", function(e) {
	hoverTL.play();
});
navButton.on("mouseout", function(e) {
	hoverTL.reverse();
});
navButton.on("click", function(e) {
	if(state === "open") {
		//slideTL.reverse();
		navButton.mouseout();
		navButton.off("mouseover");
		navButton.off("mouseout");
		navButton.on("mouseover", function(e) {
			hoverTL.play();
		});
		navButton.on("mouseout", function(e) {
			hoverTL.reverse();
		});
		
		homeTL.reverse();
		slideTween = TweenMax.to(panel, .5, {x: 375, ease: Power3.easeOut});
		TweenMax.to(navButton, .5, {x: 315, ease: Power3.easeOut});
		state = "closed";
	} else if(state === "closed") {
		//slideTL.play();
		navButton.mouseout();
		navButton.off("mouseover");
		navButton.off("mouseout");
		TweenMax.delayedCall(.5, function(e) {
			homeTL.play();
		});
		/*navButton.on("mouseover", function(e) {
			TweenMax.to(roofValues, .25, {x1: 1, y1: 13, x3: 41, y3: 13, ease: Power2.easeInOut, onUpdate: function(e) {
				roofValuesString = roofValues.x1 + "," + roofValues.y1 + " " + roofValues.x2 + "," + roofValues.y2 + " " + roofValues.x3 + "," + roofValues.y3;
				//console.log("valuesString: " + valuesString);
				TweenMax.set(roof, {attr: {points: roofValuesString}});
			}});
			TweenMax.to(roof, .25, {y: 3, ease: Power2.easeInOut});
			TweenMax.to(topLine, .25, {y: 5, attr: {x2: 18}, ease: Power2.easeInOut});
			TweenMax.to(midLine, .25, {attr: {x2: 18}, ease: Power2.easeInOut});
		});
		navButton.on("mouseout", function(e) {
			TweenMax.to(roofValues, .25, {x1: 5, y1: 11, x3: 37, y3: 11, ease: Power2.easeInOut, onUpdate: function(e) {
				roofValuesString = roofValues.x1 + "," + roofValues.y1 + " " + roofValues.x2 + "," + roofValues.y2 + " " + roofValues.x3 + "," + roofValues.y3;
				//console.log("valuesString: " + valuesString);
				TweenMax.set(roof, {attr: {points: roofValuesString}});
			}});
			TweenMax.to(roof, .25, {y: 0, ease: Power2.easeInOut});
			TweenMax.to(topLine, .25, {y: 0, attr: {x2: 23}, ease: Power2.easeInOut});
			TweenMax.to(midLine, .25, {attr: {x2: 23}, ease: Power2.easeInOut});
		});*/
		slideTween = TweenMax.to(panel, .5, {x: 50, ease: Power3.easeOut});
		TweenMax.to(navButton, .5, {x: 75, ease: Power3.easeOut});
		hoverTL.reverse();
		state = "open";
	}
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/1.18.2/TweenMax.min.js"></script>
<script src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/16327/DrawSVGPlugin.js?r=6"></script>

@import "bourbon";
$fire: #c1272d;

body {background-color: $fire;}
.container {
	width: 375px; height: 300px; box-sizing: border-box; overflow: hidden;
	background-color: darken($fire, 6%);
	position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%);
	.navButton {
		width: 50px; height: 40px; display: block; position: relative; z-index: 1;
		div {
			padding-bottom: 80%; position: relative;
			svg {
				position: absolute; top: 0; left: 0; width: 100%; height: 100%;
			}
		}
	}
	.panel {
		padding: 125px 50px 50px; 
		width: 325px; height: inherit; box-sizing: border-box;
		position: absolute; top: 0; left: 0; z-index: 0;
		background-color: darken($fire, 12%);
		div {
			width: auto; height: 10px; background-color: lighten($fire, 10%);
			margin: 0 0 50px;
		}
	}
}

SVG animated hamburger menu
---------------------------
An SVG navigation icon animated with GSAP

A [Pen](https://codepen.io/dsenneff/pen/JXxdJZ) by [Darin](https://codepen.io/dsenneff) on [CodePen](https://codepen.io).

[License](https://codepen.io/dsenneff/pen/JXxdJZ/license).