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Display AtCoder's judge status to a title bar
// ==UserScript==
// @name AtCoder Judge Status to Title Bar
// @namespace https://github.com/mihatsu-s/
// @version 1.0.0
// @description Display AtCoder's judge status to a title bar
// @author Mihatsu
// @match https://atcoder.jp/contests/*/submissions/*
// @exclude https://atcoder.jp/*/json
// ==/UserScript==
(() => {
const judgeStatusElement = document.getElementById("judge-status");
if (!judgeStatusElement) return;
const state = {
rawTitle: document.title,
_hasFocus: true,
get hasFocus() {
return this._hasFocus;
},
set hasFocus(val) {
this._hasFocus = val;
this._onUpdate();
},
_judgeStatus: "",
_previousJudgeStatus: "",
get judgeStatus() {
return this._judgeStatus;
},
set judgeStatus(val) {
this._previousJudgeStatus = this._judgeStatus;
this._judgeStatus = val;
this._onUpdate();
},
_onUpdate() {
document.title = this.hasFocus ? this.rawTitle : this.judgeStatus;
},
};
state.hasFocus = document.hasFocus();
window.addEventListener("focus", () => {
state.hasFocus = true;
});
window.addEventListener("blur", () => {
state.hasFocus = false;
});
function readJudgeStatus() {
return judgeStatusElement.textContent;
}
state.judgeStatus = readJudgeStatus();
new MutationObserver(() => {
state.judgeStatus = readJudgeStatus();
}).observe(judgeStatusElement, {
subtree: true,
characterData: true,
});
})();