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path: root/pages/log.js
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"use strict";

var colorTableLight = [
  // Tomorrow theme (light) (ish)
  "#4d4d4c", // Foreground
  "#c82829", // Red
  "#cb6b01", // Orange (darker)
  "#2d981a", // Green(ish)
  "#3e999f", // Aqua
  "#4271ae", // Blue
  "#8959a8", // Purple
  // Solarized theme
  "#002b36", // Base03
  "#586e75", // Base01
  "#657b83", // Base00
  "#839496", // Base0
  "#b58900", // Yellow
  "#cb4b16", // Orange
  "#dc322f", // Red
  "#d33682", // Magenta
  "#6c71c4", // Violet
  "#268bd2", // Blue
  "#2aa198", // Cyan
  "#859900", // Green
];

var colorTableDark = [
  // Tomorrow theme (dark)
  "#c5c8c6", // Foreground
  "#969896", // Comment
  "#cc6666", // Red
  "#de935f", // Orange
  "#f0c674", // Yellow
  "#b5bd68", // Green
  "#8abeb7", // Aqua
  "#81a2be", // Blue
  "#b294bb", // Purple
  // Solarized theme
  "#fdf6e3", // Base3
  "#eee8d5", // Base2
  "#93a1a1", // Base1
  "#839496", // Base0
  "#b58900", // Yellow
  "#cb4b16", // Orange
  "#dc322f", // Red
  "#d33682", // Magenta
  "#6c71c4", // Violet
  "#268bd2", // Blue
  "#2aa198", // Cyan
  "#859900", // Green
];

// weechat's gui_nick_hash_djb2_32
function nickhash(nick) {
  var h = 0;
  for (var i = 0; i < nick.length; i++)
    h ^= (h << 5) + (h >> 2) + nick.charCodeAt(i);
  return h;
}

function renderNickColors(dark) {
  var table = dark ? colorTableDark : colorTableLight;
  var n = table.length;

  var spans = document.querySelectorAll("table#events span.nick");
  for (var i = 0; i < spans.length; i++) {
    var el = spans[i];
    var text = el.innerText;
    var h = nickhash(el.innerText);
    el.setAttribute("style", "color: " + table[h % n]);
  }
}

window.addEventListener("load", function() {
  var querystr = "(prefers-color-scheme: dark)";
  if (!("matchMedia" in window)) {
    renderNickColors(false);
    return;
  }

  var queryList = window.matchMedia(querystr);
  renderNickColors(queryList.matches);

  // Apparently older Safari doesn't have addEventListener here yet
  if ("addEventListener" in queryList) {
    queryList.addEventListener("change", function(ql) {
      renderNickColors(ql.matches);
    });
  } else if ("addListener" in queryList) {
    queryList.addListener(function() {
      renderNickColors(window.matchMedia(querystr).matches);
    });
  }
});