javascript - SVG 图标只变形一次，不会变形回来

Question

我正在使用 SVG Morpheus根据用户点击来回变形两个图标。我有两个问题。

1) The first icon initially doesn't show up. I realize this is because I put a display:none on there but that's how it was shown in the demo. Am I supposed to take off the display:none styling for the initial icon?

2) When I first click on the 'Get in Touch' text, the icon morphs fine. However, when I click the text (now 'Projects') again, the icon doesn't morph back.

我已经为工作图标创建了两个函数来变身为邮件图标，反之亦然。此外，如果有更有效的方法将这两个功能合并为一个功能，我会洗耳恭听。

我哪里做错了？

fiddle :http://jsfiddle.net/o8u9225q/5/

HTML

<div id="icons">
    <svg id="iconset" height="24" width="24" viewbox="0 0 24 24">
        <g id="work" style="display:none">
            <rect width="6.5" height="6.5"/>
            <rect x="8.7" width="6.5" height="6.5"/>
            <rect x="17.5" width="6.5" height="6.5"/>
            <rect y="8.7" width="6.5" height="6.5"/>
            <rect x="8.7" y="8.7" width="6.5" height="6.5"/>
            <rect x="17.5" y="8.7" width="6.5" height="6.5"/>
            <rect y="17.5" width="6.5" height="6.5"/>
            <rect x="8.7" y="17.5" width="6.5" height="6.5"/>
            <rect x="17.5" y="17.5" width="6.5" height="6.5"/>
        </g>
        <g id="mail" style="display:none">
            <polygon points="1.1,3.2 6.6,3.2 12.5,3.2 12,12.5"/>
            <polygon points="8.7,3.2 15.3,3.2 15.3,9.6 12,12.5"/>
            <polygon points="20.5,3.2 23,3.2 12,12.5 13.1,3.2"/>
            <polygon points="0,4.2 6.5,14.5 6.5,20.9 0,20.9"/>
            <rect x="8.7" y="14.5" width="6.5" height="6.4"/>
            <rect x="17.5" y="14.5" width="6.5" height="6.4"/>
            <polygon points="0,4.2 12,14.5 6.5,20.9 0,20.9"/>
            <rect x="6.3" y="14.5" width="11.4" height="6.4"/>
            <polygon points="12,14.5 24,4.2 24,20.9 17.5,20.9"/>
        </g>
    </svg>
</div>
<a id="contact-button" href="#">Get in touch</a>

JS

var c = 0;

function morphWork() {
    var myIcons = new SVGMorpheus('#iconset');
    myIcons.to('mail');
};

function morphMail() {
    var myIcons = new SVGMorpheus('#iconset');
    myIcons.to('work');
};

$('#contact-button').click(function (e) {
    e.preventDefault();

    if (c++ % 2 == 0) {

        $(this).addClass('project-button').text('Projects');
        morphMail();

    } else {

        $(this).removeClass('project-button').text('Get in touch');
        morphWork();
    }
});

Answer 1

想通了。我猜我只能使用 var myIcons = new SVGMorpheus('#iconset'); 一次。这是最终结果:http://jsfiddle.net/o8u9225q/6/