grid timeline simple (latest)

by ShaCP

HTML

<div id="unit">
</div>

<div id="timeline_container">
<p id="timeline_units"></p>
</div>

CSS

body {
  width: 100%;
  height: 100vh;
}

* {
  box-sizing: border-box;
}

/* #overlay div p {
  display: none;
}

#overlay div:hover {
  background-color: red;
  background-blend-mode: color;
}

#overlay div:hover p {
  display: block;
  mix-blend-mode: unset;
} */


.timeline_unit::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  background: lightpink;
  mix-blend-mode: hue;
  z-index: 0;
}

.timeline_unit {
  position: relative;
}

.unit_start {
  right: 100%;
  top: calc(50% - 3em);
}

.unit_end {
  left: 100%;
  bottom: calc(50% - 3em);
}

/* .timeline_unit::after {
  position: absolute;
  content: attr(data-unit);
  display: inline-block;
} */

#unit {
  width: 1vw;
  height: 1vw;
  background-color: lightskyblue;
}

#unit::before {
  margin-left: 1em;
  content: "unit";
  display: inline-block;
}


#timeline_container {
  overflow: auto;
  display: inline-grid;
  width: calc(100vw - 17px - 16px);
  margin-top: 1em;
  position: relative;
  border-left: 1px solid black;
}


#timeline {
  /*  margin-top: 1.5em; */
  display: inline-grid;
  width: max-content;
  /* grid-template-rows: 6em; */
  height: 8em;
  background-color: black;
  /* grid-column-gap: 1px; */
  --firstAndLastMarksThickness: 2px;
  /* border: var(--firstAndLastMarksThickness) solid black; */
  border-top: unset;
  border-bottom: unset;
  /* width: calc(100% + 4em); */
  position: relative;
  /* grid-gap: 1px; */
}

/* timeline horizontal middle line */
#timeline::before {
  width: 100%;
  position: absolute;
  content: "";
  height: 1px;
  background-color: black;
  top: calc(50% - 0.5px);
  pointer-events: none;
  z-index: 1;
}

.timeline_segment {
  outline: 1px solid black;
  background-color: lightskyblue;
  position: relative;
  /* cursor: pointer; */
}

.duration,
.time,
.unit_start,
.unit_end {
  position: absolute;
  z-index: 1;
  background-color: whitesmoke;
  padding: 0 0.5em;
  font-size: 0.9rem;
  width: max-content;
  /* rethink...

JavaScript

/* create timeline */
console.clear();

var timelineLength;
var unitSize = 2;
var singleUnit = unitSize / 100 * window.innerWidth;
console.log(singleUnit, "singleUnit");

(() => {
  var times = [0, 1, 3, 10, 25, 39, 40, 40.5];
  console.log(times);
  times = times.sort(function compareNumbers(a, b) {
    return a - b;
  });
  console.log(times);
  var unit = "ms"

  var durations = times.reduce((result, time, i) => {
    if (!i) {
      return result;
    }

    var preciseDuration = convertBack(convert(time) - convert(times[--i]));
    result.actualDurations.push(preciseDuration);
    result.durationsWithCustomSize.push(preciseDuration * unitSize);
    return result
  }, {
    actualDurations: [],
    durationsWithCustomSize: []
  });
  var {
    actualDurations,
    durationsWithCustomSize
  } = durations;
  /* while ((time -parseFloat(times[--i])) * size < timelineMarkTextWidth) {
          console.log(i);
            timelineMarkClearance++
          } */
  console.log(durations);
  var gridColumnWidths = durationsWithCustomSize.join("vw ") + "vw"

  var timelineSegments = ""; /* times between each time mark */

  var lastSegmentIndex = actualDurations.length - 1; /* index of time between last two time marks */
  var lastTimeIndex = times.length - 1 /* index of last time mark */ ;

  var lengthOfTimeLine = times[lastTimeIndex] - times[0]; /* time from first to last time mark */

  var widthOfTimelineMarkText = 32 /* width (px) of text indicating time at mark */ ;
  /* make local ? */
  /* singleUnit = 0.01 * window.innerWidth  this is equal to 1vw */
  ;
  /* DELETE */
  timelineLength = lengthOfTimeLine;
  /* DELETE END */

  actualDurations.forEach((duration, i) => {
    console.log(duration);
    /* var  */
    var isLastSegment = i === lastSegmentIndex;
    var durationToTheEndInPixels = convertBack(convert(times[lastTimeIndex]) - convert(times[i]));
    console.log(durationToTheEndInPixels, "durationToTheEndInPixels", i);
    durationToTheEndInPixels =...