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javascript - 使用曲线将输入范围弧形拇指连接到 slider

转载 作者:行者123 更新时间:2023-12-01 15:38:17 24 4
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我有一个已解决的问题 Animating range ticks when moving range thumb .从那个问题,我有一个 input type="range"具有自定义外观 - 拇指做成弧形(半圆),span它采用范围的值并设计为带圆圈的拇指和divmask就像滴答声 - 步骤。

从这个预期的结果
expected result
我试图用曲线将该弧连接到 slider 。我尝试使用 伪元素 但渐变与 slider 上的渐变不同步,我无法制作如图所示的曲线。我也试过使用 JS Canvas 绘制该曲线并将其放置在所需的位置,但渐变再次不同步 - 成为固定颜色。
我想使用 CSS 掩码 但我不确定是否有可能用它来制作想要的曲线。

这些是我的主要 研究要点:

  • CSS Tricks - Styling Cross-Browser Compatible Range Inputs
  • Gradient Stroke Along Curve in Canvas - 试图用 Canvas 制作类似的曲线(连接点)

  • 这是我的 CodePen和代码

    // Position of span that shows range value and tick curve position
    const tickContainer = document.getElementById('tickContainer');

    const range = document.getElementById('range');
    const rangeV = document.getElementById('rangeValue');
    const setValue = () => {
    // Span position and inner value
    const newValue = Number((range.value - range.min) * 100 / (range.max - range.min));
    const newPosition = 35 - (newValue * 0.7);
    rangeV.style.left = `calc(${newValue}% + (${newPosition}px))`;
    rangeV.innerHTML = `<span>${range.value}%</span>`;

    // Tick curve position
    tickContainer.style.setProperty('--p', `calc(${newValue}%)`);
    };

    // Initialize setValue onload and oninput
    document.addEventListener("DOMContentLoaded", setValue);
    range.addEventListener('input', setValue);
    body {
    font-family: Arial;
    margin: 50px;
    }

    .range-wrap {
    position: relative;
    }

    /* Styling of ticks (lines) over the range */
    .ticks {
    position: absolute;
    left: -15px;
    right: -15px;
    padding:0 15px;
    top: -30px;
    height: 45px;
    background: repeating-linear-gradient(to right, #D3D3D3 0 1px, transparent 1px 9px);
    background-clip:content-box;
    -webkit-mask:
    radial-gradient(farthest-side at bottom,transparent 75%, #fff 76% 98%, transparent)
    var(--p) 0px/100px 50px,
    linear-gradient(#fff, #fff) var(--p) 100%/95px 10px,
    linear-gradient(#fff, #fff) bottom /100% 10px;
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-composite: source-over,destination-out;
    mask:
    radial-gradient(farthest-side at bottom,transparent 75%, #fff 76% 98%, transparent)
    var(--p) 0px/100px 50px,
    linear-gradient(#fff, #fff) var(--p) 100%/95px 10px,
    linear-gradient(#fff, #fff) bottom /100% 10px;
    mask-repeat: no-repeat;
    mask-composite: exclude;
    }

    /* Styling the range */
    input[type=range] {
    -webkit-appearance: none;
    appearance: none;
    margin: 20px 0;
    width: 100%;
    height: 4px;
    background-image: linear-gradient(125deg, #e0e0e0 34%, rgb(0,12,110) 100%);
    outline: none;
    transition: all 100ms ease;
    }

    /* Range track */
    input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    border-radius: 25px;
    }

    input[type=range]::-moz-range-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    border-radius: 25px;
    }

    /* Range thumb */
    input[type=range]::-webkit-slider-thumb {
    height: 70px;
    width: 70px;
    -webkit-transform: translateY(-44.3%) rotate(-45deg);
    transform: translateY(-44.3%) rotate(-45deg);
    -webkit-appearance: none;
    appearance: none;
    background: #ddd;
    border: 3px solid transparent;
    border-color: transparent transparent #fff #fff;
    border-radius: 50%;
    cursor: pointer;
    background-image: linear-gradient(white, white), linear-gradient(to right, #e0e0e0 34%, rgb(0,12,110) 100%);
    background-attachment: fixed, fixed;
    background-clip: padding-box, border-box;
    transition: all 200ms ease;
    }

    input[type=range]::-moz-range-thumb {
    height: 63px;
    width: 63px;
    appearance: none;
    background: #ddd;
    border: 3px solid transparent;
    transition: all 200ms ease;
    border-color: transparent transparent #fff #fff;
    border-radius: 50%;
    cursor: pointer;
    background-image: linear-gradient(white, white), linear-gradient(to right, #e0e0e0 34%, rgb(0,12,110) 100%);
    background-attachment: fixed, fixed;
    background-clip: padding-box, border-box;
    }

    /* Range value (label) inside of range thumb */
    .range-value {
    position: absolute;
    top: -50%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    z-index: 99;
    user-select: none;
    select: none;
    pointer-events: none;
    }

    .range-value span {
    width: 50px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    color: #fff;
    background: rgb(0,12,110);
    font-size: 18px;
    display: block;
    position: absolute;
    top: 20px;
    border-radius: 50%;
    user-select: none;
    select: none;
    pointer-events: none;
    z-index: 100;
    }
    <div class="range-wrap">
    <!-- Ticks (lines) over slider -->
    <div class="ticks" id="tickContainer">
    </div>
    <!-- Range value inside of range thumb -->
    <div class="range-value" id="rangeValue"></div>
    <!-- Range itself -->
    <input id="range" type="range" min="1" max="100" value="5" step="1">
    </div>

    最佳答案

    这是不同的想法,我将像以前的答案一样依赖掩码,但这次我将介绍 flex 部分的 SVG。我还将稍微优化代码以减少代码。
    您会注意到,我对刻度和范围元素使用相同的掩码,但具有一些不同的值,因为刻度需要具有更大的曲线。

    // Position of span that shows range value and tick curve position
    const tickContainer = document.querySelector('.range-wrap');

    const range = document.getElementById('range');
    const rangeV = document.getElementById('rangeValue');
    const setValue = () => {
    // Span position and inner value
    const newValue = Number((range.value - range.min) * 100 / (range.max - range.min));
    const newPosition = 30 - (newValue * 0.6);
    rangeV.style.left = `calc(${newValue}% + (${newPosition}px))`;
    rangeV.innerHTML = `${range.value}%`;

    // Tick curve position
    tickContainer.style.setProperty('--p', `calc(${newValue}%)`);
    };

    // Initialize setValue onload and oninput
    document.addEventListener("DOMContentLoaded", setValue);
    range.addEventListener('input', setValue);
    body {
    font-family: Arial;
    margin: 50px;
    }

    .range-wrap {
    position: relative;
    --svg:url("data:image/svg+xml;utf8, <svg xmlns='http://www.w3.org/2000/svg' viewBox='0 15 64 50' preserveAspectRatio='none' ><path d='M0 64 C16 64 16 32 32 32 C48 32 48 64 64 64 L64 48 C52 48 52 16 32 16 C12 16 12 48 0 48 L0 64 Z' fill='white'/></svg>") var(--p,0) 0;
    }

    /* Styling of ticks (lines) over the range */
    .ticks {
    --sw:120px; /* control the width of the curve */

    position: absolute;
    left: -30px;
    right: -30px;
    padding:0 10px;
    height: 50px;
    background: repeating-linear-gradient(to right, red 0 3px, transparent 1px 9px) content-box;
    -webkit-mask:var(--svg) /var(--sw) 50px,
    linear-gradient(to right, #fff calc(50% - var(--sw)/2 + 1px), transparent 0 calc(50% + var(--sw)/2 - 1px), #fff 0)
    right var(--p) top 33px/calc(200% - var(--sw)) 16px;
    -webkit-mask-repeat:no-repeat;
    z-index:999;
    }

    /* Styling the range */
    input[type=range] {
    --sw:100px; /* control the width of the curve */

    -webkit-appearance: none;
    appearance: none;
    margin: 20px 0 20px -20px;
    padding:0 20px;
    width:100%;
    height: 90px;
    -webkit-mask:
    var(--svg) /var(--sw) 50px,
    linear-gradient(to right, #fff calc(50% - var(--sw)/2 + 1px), transparent 0 calc(50% + var(--sw)/2 - 1px), #fff 0)
    right var(--p) top 33px/calc(200% - var(--sw)) 16px;
    -webkit-mask-repeat:no-repeat;
    background: linear-gradient(125deg, #e0e0e0 34%, rgb(0,12,110) 100%);
    outline: none;
    }

    /* Range track */
    input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 50px;
    cursor: pointer;
    border-radius: 25px;
    }

    input[type=range]::-moz-range-track {
    width: 100%;
    height: 50px;
    cursor: pointer;
    border-radius: 25px;
    }

    /* Range thumb */
    input[type=range]::-webkit-slider-thumb {
    height: 60px;
    width: 60px;
    -webkit-appearance: none;
    appearance: none;
    border-radius: 50%;
    cursor: pointer;
    opacity:0;
    }

    input[type=range]::-moz-range-thumb {
    height: 60px;
    width: 60px;
    appearance: none;
    border-radius: 50%;
    cursor: pointer;
    opacity:0;
    }

    /* Range value (label) inside of range thumb */
    .range-value {
    width: 50px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    color: #fff;
    background: rgb(0,12,110);
    font-size: 18px;
    position: absolute;
    transform:translateX(-50%);
    top: 45px;
    border-radius: 50%;
    user-select: none;
    select: none;
    pointer-events: none;
    }
    <div class="range-wrap">
    <!-- Ticks (lines) over slider -->
    <div class="ticks" id="tickContainer">
    </div>
    <!-- Range value inside of range thumb -->
    <div class="range-value" id="rangeValue"></div>
    <!-- Range itself -->
    <input id="range" type="range" min="1" max="100" value="5" step="1">
    </div>

    更新
    OP使用的最终版本:

    // Position of span that shows range value and tick curve position
    const tickContainer = document.querySelector('.range-wrap');

    const range = document.getElementById('range');
    const rangeV = document.getElementById('rangeValue');
    const setValue = () => {
    // Span position and inner value
    const newValue = Number((range.value - range.min) * 100 / (range.max - range.min));
    const newPosition = 30 - (newValue * 0.6);
    rangeV.style.left = `calc(${newValue}% + (${newPosition}px))`;
    rangeV.innerHTML = `${range.value}%`;

    // Tick curve position
    tickContainer.style.setProperty('--p', `calc(${newValue}%)`);
    };

    // Initialize setValue onload and oninput
    document.addEventListener("DOMContentLoaded", setValue);
    range.addEventListener('input', setValue);
    body {
    font-family: Arial;
    margin: 0;
    min-height: 100vh;
    padding: 50px;
    box-sizing: border-box;
    text-align:center;
    }

    .range-wrap {
    position: relative;
    --svg:url("data:image/svg+xml;utf8, <svg width='97' height='37' viewBox='0 1.5 97 37' xmlns='http://www.w3.org/2000/svg'><path d='M0 35C14 35 13 2 48.5 2C84 2 80.5 35 97 35' fill='none' stroke='white' stroke-width='4'/></svg>") var(--p,0) 0;
    </svg>
    }

    /* Styling of ticks (lines) over the range */
    .ticks {
    --sw:120px; /* control the width of the curve */

    position: absolute;
    left: -30px;
    right: -30px;
    top: 0px;
    padding:0 10px;
    height: 50px;
    background: repeating-linear-gradient(to right, #D3D3D3 0 1px, transparent 1px 10px) content-box;
    -webkit-mask:var(--svg) /var(--sw) 50px,
    linear-gradient(to right, #fff calc(50% - var(--sw)/2 + 1px), transparent 0 calc(50% + var(--sw)/2 - 1px), #fff 0)
    right var(--p) top 38px/calc(200% - var(--sw)) 6px;
    -webkit-mask-repeat:no-repeat;
    z-index:999;
    }

    /* Styling the range */
    input[type=range] {
    --sw:100px; /* control the width of the curve */

    -webkit-appearance: none;
    appearance: none;
    margin: 20px 0 20px -20px;
    padding:0 20px;
    width: 100%;
    height: 60px;
    -webkit-mask:
    var(--svg) /var(--sw) 41px,
    linear-gradient(to right, #fff calc(50% - var(--sw)/2 + 1px), transparent 0 calc(50% + var(--sw)/2 - 1px), #fff 0)
    right var(--p) top 34.45px/calc(200% - var(--sw)) 4px;
    -webkit-mask-repeat:no-repeat;
    background: linear-gradient(125deg, #e0e0e0 34%, rgb(0,12,110) 100%);
    outline: none;
    }

    /* Range track */
    input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 50px;
    cursor: pointer;
    border-radius: 25px;
    }

    input[type=range]::-moz-range-track {
    width: 100%;
    height: 50px;
    cursor: pointer;
    border-radius: 25px;
    }

    /* Range thumb */
    input[type=range]::-webkit-slider-thumb {
    height: 60px;
    width: 60px;
    -webkit-appearance: none;
    appearance: none;
    border-radius: 50%;
    cursor: pointer;
    opacity:0;
    }

    input[type=range]::-moz-range-thumb {
    height: 60px;
    width: 60px;
    appearance: none;
    border-radius: 50%;
    cursor: pointer;
    opacity:0;
    }

    /* Range value (label) inside of range thumb */
    .range-value {
    width: 55px;
    height: 55px;
    line-height: 60px;
    text-align: center;
    color: #fff;
    background: rgb(0,12,110);
    font-size: 18px;
    position: absolute;
    transform:translateX(-50%);
    top: 32px;
    border-radius: 50%;
    user-select: none;
    select: none;
    pointer-events: none;
    }
    <h2>Custom range slider with ticks</h2>

    <div class="range-wrap">
    <!-- Ticks (lines) over slider -->
    <div class="ticks" id="tickContainer">
    </div>
    <!-- Range value inside of range thumb -->
    <div class="range-value" id="rangeValue"></div>
    <!-- Range itself -->
    <input id="range" type="range" min="1" max="100" value="5" step="1">
    </div>

    关于javascript - 使用曲线将输入范围弧形拇指连接到 slider ,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/62723191/

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