SVG进度条

Question

SVG进度条

16

我有一个需求，需要动态加载js文件，并通过SVG图标显示加载文件的进度。SVG图标将作为进度条，从底部到顶部线性填充颜色。

Here is the codepen

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="79.36px" height="93.844px" viewBox="0 0 79.36 93.844">

  <path fill="transparent" stroke="black" d="M50,2C30-4,8,7,2,28c-6,20,5,42,26,48h0l-4,15l33-18c0-0,0-0,1-0l0-0l-0-0c8-4,15-12,17-22C83,30,71,8,50,2z" />
</svg>

我计划使这个图标独立，只传递百分比值。我设法完成了动画，但无法保留SVG的边框或轮廓线。这是代码。

#progressMove {
  transition: .3s y;
}
#progressMove:hover {
  y: 60%;
}

<svg id="kenseoProgress" width="79.36px" height="93.844px" viewBox="0 0 79.36 93.844">
  <defs>
    <mask id="bubbleKenseo">
      <path fill="red" stroke="black" d="M50,2C30-4,8,7,2,28c-6,20,5,42,26,48h0l-4,15l33-18c0-0,0-0,1-0l0-0l-0-0c8-4,15-12,17-22C83,30,71,8,50,2z" />
    </mask>
  </defs>
  <g x="0" y="0" width="79.36px" height="93.844px" mask="url(#bubbleKenseo)" height="100">
    <rect id="progressMove" x="0" y="0%" width="100%" height="100%" fill="blue" stroke="black" />
  </g>
</svg>

所以，我遇到的问题是：

无法保持SVG边框
无论我添加什么颜色都有一定的透明度，我无法去除。
编辑：浏览器兼容性：IE11+，Chrome，Safari和Firefox

PS：我不想使用SMIL动画。

- Mr_Green

4个回答

7

SVG与图案和y轴过渡：

svg:hover pattern #fillshape {
  y: 0%;
}
pattern #fillshape {
  transition: y 1s;
  y: 100%;
}

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="79.36px" height="93.844px" viewBox="0 0 79.36 93.844">
    <pattern id="pattern1"
           x="0" y="0" width="79.36" height="93.844"
           patternUnits="userSpaceOnUse" >

      <rect id="fillshape" x="0" y="0" width="100%" height="200%" stroke="none" fill="purple" />

  </pattern>
  <path fill="url(#pattern1)" stroke="black" d="M50,2C30-4,8,7,2,28c-6,20,5,42,26,48h0l-4,15l33-18c0-0,0-0,1-0l0-0l-0-0c8-4,15-12,17-22C83,30,71,8,50,2z" />
</svg>

现在这个在Firefox或Edge中不起作用。它无法识别x和y作为CSS属性...

下面是一种解决方案，它使用svg形状后面的div。这种解决方案的缺点是svg形状会有一个背景，例如如果您只想要形状，您需要将形状的背景颜色与页面的背景颜色相匹配。

svg {
  position: relative;
} 
.spesial {
  width: 90px;
  height: 0px;
  display: inline-block;
  background-color: purple;
  margin-left: -100px;
  transition: height 1s;
}
svg:hover + .spesial {
  height: 100px;
}

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="100" height="100" viewBox="0 0 75 90">
  <path stroke="black" fill="gray" d="M-10,-10 100,-10 100,100 -10,100 -10,-10  50,2C30-4,8,7,2,28c-6,20,5,42,26,48h0l-4,15l33-18c0-0,0-0,1-0l0-0l-0-0c8-4,15-12,17-22C83,30,71,8,50,2z" />
</svg>
<div class="spesial">
</div>

- Persijn

谢谢，我可以采用下面的解决方案，因为它是跨浏览器支持的。但我希望能够将div保留在svg内部，因为我正在使用use标签将其作为spritesheet使用。 - Mr_Green

3

首先，您需要使用剪切和遮罩或将mask的填充设置为白色以达到100%不透明度：使用mask作为灰度alpha通道，红色填充颜色导致不透明度改变。

至于描边，您需要将其添加为一个单独的元素，不受剪切的影响。（您可以在此处复制粘贴路径并使用defs和use进行重用）

#progressMove {
  transition: .3s y;
}
#progressMove:hover {
  y: 60%;
}

<svg id="kenseoProgress" width="79.36px" height="93.844px" viewBox="0 0 79.36 93.844">
  <defs>
    <clipPath id="bubbleKenseo">
      <path d="M50,2C30-4,8,7,2,28c-6,20,5,42,26,48h0l-4,15l33-18c0-0,0-0,1-0l0-0l-0-0c8-4,15-12,17-22C83,30,71,8,50,2z" />
    </clipPath>
  </defs>
  <path stroke="black" stroke-width="1" fill="transparent" d="M50,2C30-4,8,7,2,28c-6,20,5,42,26,48h0l-4,15l33-18c0-0,0-0,1-0l0-0l-0-0c8-4,15-12,17-22C83,30,71,8,50,2z" />
  <g x="0" y="0" width="79.36px" height="93.844px" clip-path="url(#bubbleKenseo)" height="100">
    <rect id="progressMove" x="0" y="0%" width="100%" height="100%" fill="blue" stroke="black" />
  </g>
</svg>

- yscik

这太棒了！我只对现有代码进行了最少的更改。谢谢。请问您能否解释一下，为什么我应用的颜色透明度会如我在问题中所述？ - Mr_Green

我看不出这个解决方案与我答案中的第一个有什么不同，而且它只能在Chrome中工作。 - Persijn

1

@Mr_Green 遮罩用作灰度 alpha 通道，其中黑色 = 0% 不透明度，白色 = 100%。您使用的红色颜色被转换为中等深灰色，因此它产生50-60% 的不透明度。 - yscik

0

var prObject = document.getElementById("prObject"),
  prDom = document.getElementById("progressMove"),
  prValue = 0;

prObject.onmouseenter = function() {
  prDom.setAttribute('class', 'prHover')
};
prObject.onmouseleave = function() {
  prDom.removeAttribute('class')
};

/*prDom.setAttributeNS(null, 'y', '0');*/

var cTimer = setInterval(function() {
  prValue += 20.6;
  prDom.style.transform = "translateY(" + [100 - Math.min(prValue, 100)] + "%)";

  if (prValue >= 100) {
    clearInterval(cTimer);
  }
}, 450);

#progressMove {
  transition: transform 0.20s linear;
}
#progressMove.prHover {
  transform: translateY(40%) !important;
}

<!DOCTYPE html>
<html>

<head>
  <title></title>
</head>

<body>
  <svg id="kenseoProgress" width="79.36px" height="93.844px" viewBox="0 0 79.36 93.844">
    <defs>
      <path id="mypath" fill="white" d="M50,2C30-4,8,7,2,28c-6,20,5,42,26,48h0l-4,15l33-18c0-0,0-0,1-0l0-0l-0-0c8-4,15-12,17-22C83,30,71,8,50,2z" />
      <mask id="bubbleKenseo">
        <use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#mypath"></use>
      </mask>
    </defs>
    <g x="0" y="0" width="79.36px" height="93.844px" mask="url(#bubbleKenseo)" height="100" stroke-width="0">
      <rect id="progressMove" x="0" y="0" width="100%" height="100%" fill="blue" stroke="black" style="transform: translateY(100%);" />
    </g>
    <g id="prObject" x="0" y="0" width="79.36px" height="93.844px" height="100" fill-opacity="0" stroke="black" stroke-width="0.5px">
      <use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#mypath"></use>
    </g>
  </svg>
</body>

</html>

- tdjprog

网页内容由stack overflow 提供, 点击上面的

可以查看英文原文，
原文链接

- Ricky · Accepted Answer

Chrome/Safari解决方案

使用CSS属性transform和counter-increment，您可以实现填充和数字递增。

jsFiddle

代码片段

for (var i = 0; i < 100; i++) {
  setTimeout(function() {
    $(".progress-container p").append("<span>");
  }, i * 20);
}

pattern #progressMove {
  transform: translateY(100%);
  color: purple;
  animation: progressBar 2s steps(100, end) forwards;
}
@keyframes progressBar {
  to {
    transform: translateY(0);
  }
}
.progress-container {
  margin: 0;
  display: inline-block;
  position: relative;
  counter-reset: progress;
}
.progress-container figcaption {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-40%, -50%);
}
.progress-container p {
  margin: 0;
  font-weight: bold;
}
.progress-container span {
  counter-increment: progress;
}
.progress-container p::after {
  content: counter(progress)"%";
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<figure class="progress-container">
  <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="79.36px" height="93.844px" viewBox="0 0 79.36 93.844">
    <pattern id="progress" x="0" y="0" width="79.36" height="93.844" patternUnits="userSpaceOnUse">
      <rect id="progressMove" x="0" y="0" width="100%" height="100%" stroke="none" fill="currentColor" />
    </pattern>
    <path fill="url(#progress)" stroke="#000" d="M50,2C30-4,8,7,2,28c-6,20,5,42,26,48h0l-4,15l33-18c0-0,0-0,1-0l0-0l-0-0c8-4,15-12,17-22C83,30,71,8,50,2z" />
  </svg>
  <figcaption>
    <p>

    </p>
  </figcaption>
</figure>

注意：

如果我能提供更好的解决方案来覆盖浏览器支持，我会进行更新。

编辑：

根据Persijn的答案，您还需要将背景颜色更改为其父元素的颜色。

整个组件将是figure元素，遗憾的是精灵表中的符号仅用于提供路径和背景。

注意：在此版本中，已删除jQuery。

jsFiddle

for (var i = 0; i < 100; i++) {
  setTimeout(function() {
    var progressCounter = document.querySelector(".progress__counter"),
      number = document.createElement("span");
    progressCounter.appendChild(number);
  }, i * 20);
}

#spritesheet {
  display: none;
}
.icon {
  display: inline-block;
  width: 1em;
  height: 1em;
}
.icon-bubble {
  font-size: 7em;
  color: white;
}
.progress-container {
  margin: 0;
  display: inline-block;
  position: relative;
  counter-reset: progress;
  overflow: hidden;
  line-height: 0;
}
.progress__inner {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}
.progress__fill {
  background-color: purple;
  height: 100%;
  transform: translateY(100%);
  animation: progressFill 2s steps(100, end) forwards;
}
@keyframes progressFill {
  to {
    transform: translateY(0);
  }
}
.progress__counter {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-40%, -50%);
  margin: 0;
  font-weight: bold;
}
.progress__counter span {
  counter-increment: progress;
}
.progress__counter::after {
  content: counter(progress)"%";
}

<figure class="progress-container">
  <svg class="icon icon-bubble">
    <use xlink:href="#icon-bubble"></use>
  </svg>
  <figcaption class="progress__inner">
    <div class="progress__fill"></div>
    <p class="progress__counter"></p>
  </figcaption>
</figure>

<svg id="spritesheet">
  <symbol id="icon-bubble" viewBox="0 0 79.36 93.844">
    <title>Loading Bubble</title>
    <path id="bubble-cover" fill="currentColor" stroke="#000" d="M-10,-10 100,-10 100,100 -10,100 -10,-10  50,2C30-4,8,7,2,28c-6,20,5,42,26,48h0l-4,15l33-18c0-0,0-0,1-0l0-0l-0-0c8-4,15-12,17-22C83,30,71,8,50,2z" />
  </symbol>
</svg>

测试:

Chrome 53
IE10
Edge
FireFox 47
iOS 10 Safari

游乐场

jsFiddle

注意：本文中的 HTML 标签已保留。

for (var i = 0; i < 100; i++) {
  setTimeout(function() {
    var progressCounter = document.querySelector(".progress__counter"),
      number = document.createElement("span");
    progressCounter.appendChild(number);
  }, i * 20);
}

#spritesheet {
  display: none;
}
.icon {
  display: inline-block;
  width: 1em;
  height: 1em;
}
.icon-bubble {
  font-size: 7em;
  color: white;
}
.progress-container {
  margin: 0;
  display: inline-block;
  position: relative;
  counter-reset: progress;
  overflow: hidden;
  line-height: 0;
}
.progress__inner {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}
.progress__fill {
  background-color: purple;
  height: 100%;
  transform: translateY(100%);
  animation: progressFill 2s steps(100, end) forwards, progressFillColor 100ms linear 2s forwards;
  position: relative;
}
@keyframes progressFill {
  to {
    transform: translateY(0);
  }
}
@keyframes progressFillColor {
  to {
    background-color: green;
  }
}
.progress__counter {
  position: absolute;
  top: 40%;
  transform: translateY(-40%);
  text-align: center;
  width: 100%;
  margin: 0;
  font-weight: bold;
  animation: progressCounter 100ms linear 1s forwards;
}
.progress__counter span {
  counter-increment: progress;
}
.progress__counter::after {
  content: counter(progress)"%";
  animation: progressCounterCompleted 1s linear 2s forwards;
}
@keyframes progressCounter {
  to {
    color: white;
  }
}
/* Chrome Only*/

@keyframes progressCounterCompleted {
  33% {
    content: "File(s)";
  }
  66% {
    content: "Uploaded";
  }
  100% {
    content: "Successfully!";
  }
}

<figure class="progress-container">
  <svg class="icon icon-bubble">
    <use xlink:href="#icon-bubble"></use>
  </svg>
  <figcaption class="progress__inner">
    <div class="progress__fill"></div>
    <p class="progress__counter"></p>
  </figcaption>
</figure>

<svg id="spritesheet">
  <symbol id="icon-bubble" viewBox="0 0 79.36 93.844">
    <title>Loading Bubble</title>
    <path id="bubble-cover" fill="currentColor" stroke="#000" d="M-10,-10 100,-10 100,100 -10,100 -10,-10  50,2C30-4,8,7,2,28c-6,20,5,42,26,48h0l-4,15l33-18c0-0,0-0,1-0l0-0l-0-0c8-4,15-12,17-22C83,30,71,8,50,2z" />
  </symbol>
</svg>