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<!DOCTYPE html>
<html>
<head>
<title>History of the Pointless Battle of Nothing </title>
<meta charset="utf-8" >
<meta name="author" content="Curtis J. Brown <mrbrown8@juno.com>" >
<meta name="description" content="" >
<meta name="keywords" content="" >
<meta name="generator" content="https://github.com/mrbrown8/html_vertical_timelines" >
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- https://stackoverflow.com/questions/9943771/adding-a-favicon-to-a-static-html-page -->
<link rel="icon" type="image/x-icon" href="data:image/svg+xml,<svg id=%22s%22 width=%2248%22 height=%2248%22 version=%221.1%22 viewBox=%220 0 12.7 12.7%22 xmlns=%22http://www.w3.org/2000/svg%22><g id=%22l%22 fill=%22%23f1e9d2%22><rect id=%22r%22 x=%220%22 y=%220%22 width=%2212.7%22 height=%2212.7%22 ry=%220%22 stroke-miterlimit=%222.4%22 stroke-width=%220%22 style=%22paint-order:markers fill stroke%22/><path id=%22p%22 d=%22m6.35-0.0v12.7%22 fill-rule=%22evenodd%22 stroke=%22%23000001%22 stroke-width=%221%22/><circle id=%22c%22 cx=%226.35%22 cy=%226.35%22 r=%222.56%22 stroke=%22%23000001%22/></g></svg>" />
<script>
// Date strings can be flexible. See https://www.w3schools.com/js/js_date_formats.asp for examples.
// timepoint_list array elements:
// [0] = user provided date
// [1] = user provided event description
// [2] = calculated JSDate object
// [3] = calculated relative distance from previous point
// [4] = calculated percentage of distance to total timerange
var timepoint_list = [// YYYY-MM-DD
["1921-10-01", "Event 1"],
["1921-12-09", "Event 2"],
["1922-04-01", "Event 3"],
["1922-04-28", "Event 4"]
//["", ""],
//["", ""]
];
const millisecondsInADay = 1000 * 60 * 60 * 24;
const num_of_timepoints = timepoint_list.length ;
const months_en = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
const months_short_en = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
const daysofweek_en = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
const daysofweek_short_en = ["Sun", "Mon", "Tues", "Wed", "Thu", "Fri", "Sat"];
const daysofweek_short_jp = ["日", "月", "火", "水", "木", "金", "土"]; // ～曜日
const year_jp = "年"; const month_jp = "月"; const day_jp = "日";
// Add JS Date objects to each row
for (let i = 0; i < num_of_timepoints; i++) {
let dateobject = new Date(timepoint_list[i][0]);
if ( isNaN(dateobject) ) {
throw new Error("Bad date format: " + timepoint_list[i][0] + ", entry number: " + i );
}
timepoint_list[i].push(dateobject);
}
// Calculate total time range
const startDate = timepoint_list[0][2];
const endDate = timepoint_list[num_of_timepoints - 1][2];
const timerange = ( endDate - startDate ) / millisecondsInADay;
console.log("timerange is (" + timerange + ") days" );
// calculate distances to next timepoint
for (let i = 0; i < num_of_timepoints - 1 ; i++) {
let distance = ( timepoint_list[i+1][2] - timepoint_list[i][2] ) / millisecondsInADay;
timepoint_list[i].push(distance) // add, to the timepoint, the relative distance to the next point
let percentage = distance / timerange; // a decimal ranging from 0.00 to 1.00
timepoint_list[i].push(percentage)
console.log("for " + i + " , distance is " + distance + ", percentage is " + percentage);
}
timepoint_list[num_of_timepoints - 1].push(0); // the last timepoint has no next point to distance to
console.log("for " + (num_of_timepoints - 1) + " , distance is " + (timepoint_list[num_of_timepoints - 1][3]));
// This JS code is in <head> & therfore cannot yet refer to HTML elements
// Make sure HTML is loaded first (or rewrite to put this JS in <body>)
// https://stackoverflow.com/questions/436411/where-should-i-put-script-tags-in-html-markup
// https://www.javascripttutorial.net/javascript-dom/javascript-domcontentloaded/
document.addEventListener('DOMContentLoaded', () => {
var ul_element = document.getElementById("timeline_ul");
for (let i = 0; i < num_of_timepoints; i++) {
let distance = "";
if (timepoint_list[i][3] == 0) {
distance = "";
} else {
//distance = 'style="margin-bottom:' + timepoint_list[i][3] + 'pt"';
//distance = 'style="height:' + timepoint_list[i][3] + 'pt"';
//distance = 'style="height:' + (timepoint_list[i][4])*100 + 'vh"';
distance = 'style="height:' + (timepoint_list[i][4])*100 + 'mm"';
//distance = 'style="height: calc(' + (timepoint_list[i][4])*100 + 'vh - 3 * var(--spacing)"';
}
//console.log("for " + i + " , distance is " + (distance) );
let showdate = months_short_en[timepoint_list[i][2].getMonth()] + " " +
timepoint_list[i][2].getDate() + ", " +
timepoint_list[i][2].getFullYear();
let tooltipdate = daysofweek_en[timepoint_list[i][2].getDay()] + ", " +
months_en[timepoint_list[i][2].getMonth()] + " " +
timepoint_list[i][2].getDate() + ", " +
timepoint_list[i][2].getFullYear();
let li_element = ` <li class="event" data-date="${showdate}" title="${tooltipdate}" ${distance}>\n`
+ ` <p>${timepoint_list[i][1]}</p>\n`
+ ` </li>`;
timeline_ul.innerHTML += li_element;
}
console.log(timepoint_list);
});
</script>
<style>
:root {
/* Variables */
/* --background: #252827; */
--background: #fcf5e5; // parchment-ish
--color-primary: #004ffc;
--color-light: white;
/* --color-dim: #6c6d6d; */
--color-dim: black;
--line: 4px;
--spacing: 50px;
--font-title: 'Helvetica', sans-serif;
--font-text: 'Times New Roman', serif;
}
/* Base */
body {
background: var(--background);
font-size: 16px;
}
p {
/* font-weight: 300; */
/* margin-block-start: 0em */
/* margin-block-end: 0em */
margin: 0;
}
a {
color: var(--color-dim);
text-decoration: none;
text-transform: uppercase;
display: block;
letter-spacing: .3em;
font-size: .6em;
font-weight: 400;
background: #252727;
padding: .3rem 1rem;
margin: 1.9rem 0 0 0;
float: right;
}
a:hover {
color: var(--color-light);
background: var(--color-primary);
border-bottom: .35em solid black;
}
h1 {
color: var(--color-dim);
font-family: var(--font-title);
font-size: 2.4em;
font-weight: 400;
letter-spacing: 1.5px;
}
#timeline-content {
margin-top: var(--spacing);
text-align: center;
}
/* Timeline CSS magic*/
.timeline { /* applied to the <ul> element */
/* border-left: var(--line) solid var(--color-primary); */
border-left: var(--line) solid black;
border-bottom-right-radius: var(--radius);
border-top-right-radius: var(--radius);
background: fade(var(--color-light), 3%);
color: fade(white, 80%);
font-family: var(--font-text);
font-size: 1.03em;
font-weight: 100;
margin: var(--spacing) auto;
max-width: 40%;
letter-spacing: 0.5px;
line-height: 1.4em;
list-style: none;
position: relative;
padding: var(--spacing);
text-align: left;
h1 {
color: var(--color-dim);
font-family: var(--font-title);
font-size: 1.4em;
font-weight: 100;
letter-spacing: 1.5px;
}
h2, h3 {
color: var(--color-dim);
font-family: var(--font-title);
font-size: 1.4em;
font-weight: 400;
letter-spacing: 1.5px;
}
.event { /* applied to <li> elements */
--background: #fcf5e5; // parchment;
--color-light: white;
--color-primary: #000000;
--date: 120px;
--dot: 13px;
--dotborder: 4px;
--font-title: 'Helvetica';
--spacing: 50px;
--line: 4px;
/* border-bottom: 1px dashed fade(var(--color-light), 10%); */
border-bottom: 1px dashed fade(black, 90%);;
/* padding-bottom: calc(var(--spacing) * 0.5); */
/* margin-bottom: var(--spacing); */
position: relative;
&:last-of-type {
padding-bottom: 0;
margin-bottom: 0;
border: none;
}
&:before, &:after {
position: absolute;
display: block;
top: 0;
}
&:before { /* dates */
/* variables here won't inherit from :root , a seemingly dumb oversight */
/* https://stackoverflow.com/questions/12124953/can-the-before-and-after-pseudo-elements-inherit-height-from-the-parent-elemen */
/* https://stackoverflow.com/questions/71462808/why-css-variables-are-not-inherited-in-pseudo-elements */
left: calc( (((var(--date) * 0.6) + var(--spacing) + var(--line) + var(--dot) + (var(--dotborder) * 2)) * 1.5) * -1 );
color: fade(var(--color-light), 40%);
content: attr(data-date);
font-weight: 100;
font-size: 0.9em;
font-family: var(--font-text);
min-width: var(--date);
text-align: right;
}
&:after { /* circles on the li elements*/
/* variables here won't inherit from :root */
/* box-shadow: 0 0 0 var(--dotborder) fade(var(--color-primary),100%); */ /* offset-x | offset-y | blur-radius | spread-radius | color */
box-shadow: 0 0 0 var(--dotborder) var(--color-primary);
left: calc((var(--spacing) + var(--line) + (var(--dot) * 0.35)) * -1);
/* background: lighten(var(--background),5%); */
background: var(--background);
border-radius: 50%;
height: var(--dot);
width: var(--dot);
content: "";
top: 5px;
overflow-y: auto; /* we can accomodate big items, but maintain proportional size of container */
}
}
}
</style>
</head>
<body>
<div id="timeline-content">
<h1 id="inpage-title">Timeline</h1>
<ul class="timeline" id="timeline_ul">
</ul>
</div>
</body>
</html>