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January 12, 2022 06:17 am GMT

4 JavaScript Project Series.

Hello Coders!

Welcome back to the Javascript project series. Today i'm share another amazing project.

Save This Series For Upcoming Projects.

oh yeah

  • Let's get started....

Progress bar style clock | Clock using HTML, CSS and JavaScript.

  • In this project, we learn that how we create a Clock progress bar. We use HTML, Css, and javascript for this Clock progress bar. Hope you enjoy this projects series, so let's start....

Here's a preview :-

Image description

A basic HTML structure for a Clock progress bar.

HTML CODE

<div id="clock" class="progress-clock">        <button class="progress-clock__time-date" data-group="d" type="button">             <small data-unit="w">Sunday</small><br>             <span data-unit="mo">January</span>             <span data-unit="d">1</span>        </button>        <button class="progress-clock__time-digit" data-unit="h" data-group="h" type="button">12</button><span class="progress-clock__time-colon">:</span><button class="progress-clock__time-digit" data-unit="m" data-group="m" type="button">00</button><span class="progress-clock__time-colon">:</span><button class="progress-clock__time-digit" data-unit="s" data-group="s" type="button">00</button>        <span class="progress-clock__time-ampm" data-unit="ap">AM</span>        <svg class="progress-clock__rings" width="256" height="256" viewBox="0 0 256 256">             <defs>                  <linearGradient id="pc-red" x1="1" y1="0.5" x2="0" y2="0.5">                       <stop offset="0%" stop-color="hsl(343,90%,55%)" />                       <stop offset="100%" stop-color="hsl(323,90%,55%)" />                  </linearGradient>                  <linearGradient id="pc-yellow" x1="1" y1="0.5" x2="0" y2="0.5">                       <stop offset="0%" stop-color="hsl(43,90%,55%)" />                       <stop offset="100%" stop-color="hsl(23,90%,55%)" />                  </linearGradient>                  <linearGradient id="pc-blue" x1="1" y1="0.5" x2="0" y2="0.5">                       <stop offset="0%" stop-color="hsl(223,90%,55%)" />                       <stop offset="100%" stop-color="hsl(203,90%,55%)" />                  </linearGradient>                  <linearGradient id="pc-purple" x1="1" y1="0.5" x2="0" y2="0.5">                       <stop offset="0%" stop-color="hsl(283,90%,55%)" />                       <stop offset="100%" stop-color="hsl(263,90%,55%)" />                  </linearGradient>             </defs>             <!-- Days of Month -->             <g data-units="d">                  <circle class="progress-clock__ring" cx="128" cy="128" r="74" fill="none" opacity="0.1" stroke="url(#pc-red)" stroke-width="12" />                  <circle class="progress-clock__ring-fill" data-ring="mo" cx="128" cy="128" r="74" fill="none" stroke="url(#pc-red)" stroke-width="12" stroke-dasharray="465 465" stroke-dashoffset="465" stroke-linecap="round" transform="rotate(-90,128,128)" />             </g>             <!-- Hours of Day -->             <g data-units="h">                  <circle class="progress-clock__ring" cx="128" cy="128" r="90" fill="none" opacity="0.1" stroke="url(#pc-yellow)" stroke-width="12" />                  <circle class="progress-clock__ring-fill" data-ring="d" cx="128" cy="128" r="90" fill="none" stroke="url(#pc-yellow)" stroke-width="12" stroke-dasharray="565.5 565.5" stroke-dashoffset="565.5" stroke-linecap="round" transform="rotate(-90,128,128)" />             </g>             <!-- Minutes of Hour -->             <g data-units="m">                  <circle class="progress-clock__ring" cx="128" cy="128" r="106" fill="none" opacity="0.1" stroke="url(#pc-blue)" stroke-width="12" />                  <circle class="progress-clock__ring-fill" data-ring="h" cx="128" cy="128" r="106" fill="none" stroke="url(#pc-blue)" stroke-width="12" stroke-dasharray="666 666" stroke-dashoffset="666" stroke-linecap="round" transform="rotate(-90,128,128)" />             </g>             <!-- Seconds of Minute -->             <g data-units="s">                  <circle class="progress-clock__ring" cx="128" cy="128" r="122" fill="none" opacity="0.1" stroke="url(#pc-purple)" stroke-width="12" />                  <circle class="progress-clock__ring-fill" data-ring="m" cx="128" cy="128" r="122" fill="none" stroke="url(#pc-purple)" stroke-width="12" stroke-dasharray="766.5 766.5" stroke-dashoffset="766.5" stroke-linecap="round" transform="rotate(-90,128,128)" />             </g>        </svg>   </div>  

There is all HTML code for the Clock progress bar. Now, you can see output without CSS, then we write css & javascript for a Clock progress bar.

Output

Image dde

CSS CODE

* {        border: 0;        box-sizing: border-box;        margin: 0;        padding: 0;   }   :root {        --hue: 223;        --bg: hsl(var(--hue),10%,90%);        --fg: hsl(var(--hue),10%,10%);        font-size: calc(16px + (24 - 16) * (100vw - 320px) / (1280 - 320));   }   body, button {        color: var(--fg);        font: 1em/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;   }   body {        background-color: var(--bg);        height: 100vh;        display: grid;        place-items: center;   }   .progress-clock {        display: grid;        justify-content: center;        align-content: center;        position: relative;        text-align: center;        width: 16em;        height: 16em;   }   .progress-clock__time-date,   .progress-clock__time-digit,   .progress-clock__time-colon,   .progress-clock__time-ampm {        transition: color 0.2s linear;        -webkit-user-select: none;        -moz-user-select: none;        user-select: none;   }   .progress-clock__time-date,   .progress-clock__time-digit {        background: transparent;   }   .progress-clock__time-date,   .progress-clock__time-ampm {        grid-column: 1 / 6;   }   .progress-clock__time-date {        font-size: 0.75em;        line-height: 1.33;   }   .progress-clock__time-digit,   .progress-clock__time-colon {        font-size: 2em;        font-weight: 400;        grid-row: 2;   }   .progress-clock__time-colon {        line-height: 1.275;   }   .progress-clock__time-ampm {        cursor: default;        grid-row: 3;   }   .progress-clock__rings {        display: block;        position: absolute;        top: 0;        left: 0;        width: 100%;        height: 100%;        z-index: -1;   }   .progress-clock__ring {        opacity: 0.1;   }   .progress-clock__ring-fill {        transition:             opacity 0s 0.3s linear,             stroke-dashoffset 0.3s ease-in-out;   }   .progress-clock__ring-fill--360 {        opacity: 0;        stroke-dashoffset: 0;        transition-duration: 0.3s;   }   [data-group]:focus {        outline: transparent;   }   [data-units] {        transition: opacity 0.2s linear;   }   [data-group="d"]:focus,   [data-group="d"]:hover {        color: hsl(333,90%,55%);   }   [data-group="h"]:focus,   [data-group="h"]:hover {        color: hsl(33,90%,55%);   }   [data-group="m"]:focus,   [data-group="m"]:hover {        color: hsl(213,90%,55%);   }   [data-group="s"]:focus,   [data-group="s"]:hover {        color: hsl(273,90%,55%);   }   [data-group]:focus ~ .progress-clock__rings [data-units],   [data-group]:hover ~ .progress-clock__rings [data-units] {        opacity: 0.2;   }   [data-group="d"]:focus ~ .progress-clock__rings [data-units="d"],   [data-group="d"]:hover ~ .progress-clock__rings [data-units="d"],   [data-group="h"]:focus ~ .progress-clock__rings [data-units="h"],   [data-group="h"]:hover ~ .progress-clock__rings [data-units="h"],   [data-group="m"]:focus ~ .progress-clock__rings [data-units="m"],   [data-group="m"]:hover ~ .progress-clock__rings [data-units="m"],   [data-group="s"]:focus ~ .progress-clock__rings [data-units="s"],   [data-group="s"]:hover ~ .progress-clock__rings [data-units="s"] {        opacity: 1;   }   /* Dark theme */   @media (prefers-color-scheme: dark) {        :root {             --bg: hsl(var(--hue),10%,10%);             --fg: hsl(var(--hue),10%,90%);        }        .progress-clock__ring {             opacity: 0.2;        }   }  

Now we have completed our CSS section, Here is our updated output CSS.

Output

Image click

JavaScript CODE

window.addEventListener("DOMContentLoaded",() => {        const clock = new ProgressClock("#clock");   });   class ProgressClock {        constructor(qs) {             this.el = document.querySelector(qs);             this.time = 0;             this.updateTimeout = null;             this.ringTimeouts = [];             this.update();        }        getDayOfWeek(day) {             switch (day) {                  case 1:                       return "Monday";                  case 2:                       return "Tuesday";                  case 3:                       return "Wednesday";                  case 4:                       return "Thursday";                  case 5:                       return "Friday";                  case 6:                       return "Saturday";                  default:                       return "Sunday";             }        }        getMonthInfo(mo,yr) {             switch (mo) {                  case 1:                       return { name: "February", days: yr % 4 === 0 ? 29 : 28 };                  case 2:                       return { name: "March", days: 31 };                  case 3:                       return { name: "April", days: 30 };                  case 4:                       return { name: "May", days: 31 };                  case 5:                       return { name: "June", days: 30 };                  case 6:                       return { name: "July", days: 31 };                  case 7:                       return { name: "August", days: 31 };                  case 8:                       return { name: "September", days: 30 };                  case 9:                       return { name: "October", days: 31 };                  case 10:                       return { name: "November", days: 30 };                  case 11:                       return { name: "December", days: 31 };                  default:                       return { name: "January", days: 31 };             }        }        update() {             this.time = new Date();             if (this.el) {                  // date and time                  const dayOfWeek = this.time.getDay();                  const year = this.time.getFullYear();                  const month = this.time.getMonth();                  const day = this.time.getDate();                  const hr = this.time.getHours();                  const min = this.time.getMinutes();                  const sec = this.time.getSeconds();                  const dayOfWeekName = this.getDayOfWeek(dayOfWeek);                  const monthInfo = this.getMonthInfo(month,year);                  const m_progress = sec / 60;                  const h_progress = (min + m_progress) / 60;                  const d_progress = (hr + h_progress) / 24;                  const mo_progress = ((day - 1) + d_progress) / monthInfo.days;                  const units = [                       {                            label: "w",                            value: dayOfWeekName                       },                       {                            label: "mo",                            value: monthInfo.name,                            progress: mo_progress                       },                       {                            label: "d",                             value: day,                            progress: d_progress                       },                       {                            label: "h",                             value: hr > 12 ? hr - 12 : hr,                            progress: h_progress                       },                       {                            label: "m",                             value: min < 10 ? "0" + min : min,                            progress: m_progress                       },                       {                            label: "s",                             value: sec < 10 ? "0" + sec : sec                       },                       {                            label: "ap",                            value: hr > 12 ? "PM" : "AM"                       }                  ];                  // flush out the timeouts                  this.ringTimeouts.forEach(t => {                       clearTimeout(t);                  });                  this.ringTimeouts = [];                  // update the display                  units.forEach(u => {                       // rings                       const ring = this.el.querySelector(`[data-ring="${u.label}"]`);                       if (ring) {                            const strokeDashArray = ring.getAttribute("stroke-dasharray");                            const fill360 = "progress-clock__ring-fill--360";                            if (strokeDashArray) {                                 // calculate the stroke                                 const circumference = +strokeDashArray.split(" ")[0];                                 const strokeDashOffsetPct = 1 - u.progress;                                 ring.setAttribute(                                      "stroke-dashoffset",                                      strokeDashOffsetPct * circumference                                 );                                 // add the fade-out transition, then remove it                                 if (strokeDashOffsetPct === 1) {                                      ring.classList.add(fill360);                                      this.ringTimeouts.push(                                           setTimeout(() => {                                                ring.classList.remove(fill360);                                           }, 600)                                      );                                 }                            }                       }                       // digits                       const unit = this.el.querySelector(`[data-unit="${u.label}"]`);                       if (unit)                            unit.innerText = u.value;                  });             }             clearTimeout(this.updateTimeout);             this.updateTimeout = setTimeout(this.update.bind(this),1e3);        }   }  

Final Output

Iption

Now we have completed our javascript section, Here is our updated output with javascript. Hope you like the Clock progress bar.

Save This Series For Upcoming Amazing Projects.

Thanks for reading!


Original Link: https://dev.to/chetan_atrawalkar/4-javascript-project-series-40hm

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