dekun
635 lines
19 KiB
JavaScript
635 lines
19 KiB
JavaScript
/**
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* 中控行情区：K 线 + 成交量；默认最新 OHLCV；5s 自动刷新；价格轴「自动」。
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*/
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(function () {
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const AUTO_REFRESH_MS = 5000;
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const DEFAULT_VISIBLE_BARS = 200;
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const RIGHT_OFFSET_BARS = 12;
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const TF_MS = {
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"1m": 60_000,
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"5m": 5 * 60_000,
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"15m": 15 * 60_000,
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"1h": 60 * 60_000,
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"4h": 4 * 60 * 60_000,
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"1d": 24 * 60 * 60_000,
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"1w": 7 * 24 * 60 * 60_000,
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};
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const chartHost = document.getElementById("market-chart");
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if (!chartHost) return;
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const elExchange = document.getElementById("market-exchange");
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const elSymbol = document.getElementById("market-symbol");
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const elTf = document.getElementById("market-timeframe");
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const elRefresh = document.getElementById("market-refresh");
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const elStatus = document.getElementById("market-status");
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const elUpdated = document.getElementById("market-updated");
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const elBarCountdown = document.getElementById("market-bar-countdown");
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const elPriceGutter = document.querySelector(".market-price-gutter");
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const elO = document.getElementById("mkt-o");
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const elH = document.getElementById("mkt-h");
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const elL = document.getElementById("mkt-l");
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const elC = document.getElementById("mkt-c");
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const elV = document.getElementById("mkt-v");
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const elAmp = document.getElementById("mkt-amp");
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const elPriceTag = document.getElementById("market-price-tag");
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const elPriceTagValue = document.getElementById("market-price-tag-value");
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const elPriceTagTime = document.getElementById("market-price-tag-time");
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const elExLabel = document.getElementById("mkt-exchange-label");
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const elExBadge = document.getElementById("market-exchange-badge");
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const elSymLabel = document.getElementById("mkt-symbol-label");
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const elTfLabel = document.getElementById("mkt-tf-label");
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const elPriceAuto = document.getElementById("market-price-auto");
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let chart = null;
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let candleSeries = null;
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let volumeSeries = null;
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let priceTick = null;
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let priceAutoScale = true;
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let rangeMarkers = [];
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let currentPriceLine = null;
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let lastCandles = [];
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let candleByTime = {};
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let chartMeta = null;
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let loadToken = 0;
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let marketInited = false;
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let refreshTimer = null;
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let lastViewKey = "";
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let currentTf = "1d";
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let priceTagTimer = null;
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function fmtVol(v) {
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if (v == null || Number.isNaN(Number(v))) return "-";
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const n = Number(v);
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if (n >= 1e9) return (n / 1e9).toFixed(2) + "B";
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if (n >= 1e6) return (n / 1e6).toFixed(2) + "M";
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if (n >= 1e3) return (n / 1e3).toFixed(2) + "K";
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return n.toFixed(2);
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}
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function fmtPrice(v) {
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if (v == null || Number.isNaN(Number(v))) return "-";
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const n = Number(v);
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if (n === 0) return "0";
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const tick = priceTick;
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if (tick && tick > 0) {
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let decimals = tick >= 1 ? 0 : Math.max(0, Math.min(12, Math.round(-Math.log10(tick))));
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let text = n.toFixed(decimals);
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if (text.indexOf(".") >= 0) text = text.replace(/\.?0+$/, "");
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return text;
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}
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const av = Math.abs(n);
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let d = 8;
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if (av >= 10000) d = 2;
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else if (av >= 100) d = 3;
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else if (av >= 1) d = 4;
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else if (av >= 0.01) d = 6;
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let text = n.toFixed(d);
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if (text.indexOf(".") >= 0) text = text.replace(/\.?0+$/, "");
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return text;
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}
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function exchangeLabel() {
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if (!elExchange) return "";
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const opt = elExchange.options[elExchange.selectedIndex];
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if (opt && opt.textContent) return opt.textContent.trim();
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return (elExchange.value || "").trim().toUpperCase();
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}
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function updateExchangeDisplay() {
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const label = exchangeLabel();
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if (elExLabel) elExLabel.textContent = label;
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if (elExBadge) {
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elExBadge.textContent = label;
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elExBadge.setAttribute("aria-hidden", label ? "false" : "true");
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}
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}
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function updateHeaderLabels(sym, tf) {
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if (elSymLabel) elSymLabel.textContent = sym || "—";
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if (elTfLabel) elTfLabel.textContent = tf || "—";
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updateExchangeDisplay();
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}
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function fmtAmplitude(bar) {
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if (!bar) return "-";
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const o = Number(bar.open);
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const h = Number(bar.high);
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const l = Number(bar.low);
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if (!o || o <= 0 || !Number.isFinite(h) || !Number.isFinite(l)) return "-";
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return (((h - l) / o) * 100).toFixed(2) + "%";
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}
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function barRemainMs(tf) {
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const period = TF_MS[tf] || TF_MS["1d"];
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const now = Date.now();
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const barOpen = Math.floor(now / period) * period;
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return Math.max(0, barOpen + period - now);
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}
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function fmtBarCountdown(ms) {
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const total = Math.max(0, Math.floor(ms / 1000));
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const h = Math.floor(total / 3600);
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const m = Math.floor((total % 3600) / 60);
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const s = total % 60;
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const pad = function (n) {
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return n < 10 ? "0" + n : String(n);
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};
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if (h > 0) return h + ":" + pad(m) + ":" + pad(s);
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return pad(m) + ":" + pad(s);
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}
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function paintOhlcv(bar) {
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if (!bar) {
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["o", "h", "l", "c", "v", "amp"].forEach(function (k) {
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const el = { o: elO, h: elH, l: elL, c: elC, v: elV, amp: elAmp }[k];
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if (el) el.textContent = "-";
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});
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return;
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}
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if (elO) elO.textContent = fmtPrice(bar.open);
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if (elH) elH.textContent = fmtPrice(bar.high);
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if (elL) elL.textContent = fmtPrice(bar.low);
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if (elC) elC.textContent = fmtPrice(bar.close);
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if (elV) elV.textContent = fmtVol(bar.volume);
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if (elAmp) elAmp.textContent = fmtAmplitude(bar);
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}
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function latestCandle() {
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return lastCandles.length ? lastCandles[lastCandles.length - 1] : null;
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}
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function showLatestOhlcv() {
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paintOhlcv(latestCandle());
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updateCurrentPriceLine();
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updatePriceTag();
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}
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function clearCurrentPriceLine() {
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if (currentPriceLine && candleSeries) {
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try {
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candleSeries.removePriceLine(currentPriceLine);
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} catch (e) {}
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}
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currentPriceLine = null;
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}
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function updateCurrentPriceLine() {
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clearCurrentPriceLine();
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if (!candleSeries) return;
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const bar = latestCandle();
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if (!bar || bar.close == null) return;
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const up = Number(bar.close) >= Number(bar.open);
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currentPriceLine = candleSeries.createPriceLine({
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price: Number(bar.close),
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color: up ? "#00ff9d" : "#ff4d6d",
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lineWidth: 1,
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lineStyle: 2,
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axisLabelVisible: true,
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title: "现价",
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});
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}
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function tickLiveClock() {
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const cd = fmtBarCountdown(barRemainMs(currentTf));
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if (elPriceTagTime && elPriceTag && !elPriceTag.classList.contains("hidden")) {
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elPriceTagTime.textContent = cd;
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}
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if (elBarCountdown) elBarCountdown.textContent = "距收盘 " + cd;
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}
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function updatePriceTag() {
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if (!elPriceTag || !candleSeries || !chart) return;
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tickLiveClock();
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const bar = latestCandle();
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if (!bar || bar.close == null) {
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elPriceTag.classList.add("hidden");
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elPriceTag.setAttribute("aria-hidden", "true");
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return;
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}
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let y = null;
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try {
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y = candleSeries.priceToCoordinate(Number(bar.close));
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} catch (e) {
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y = null;
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}
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const hostH = (elPriceGutter && elPriceGutter.clientHeight) || chartHost.clientHeight || 0;
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if (y == null || y < 8 || y > hostH - 8) {
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elPriceTag.classList.add("hidden");
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elPriceTag.setAttribute("aria-hidden", "true");
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return;
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}
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const up = Number(bar.close) >= Number(bar.open);
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elPriceTag.classList.remove("hidden", "is-up", "is-down");
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elPriceTag.classList.add(up ? "is-up" : "is-down");
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elPriceTag.setAttribute("aria-hidden", "false");
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elPriceTag.style.top = y + "px";
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if (elPriceTagValue) elPriceTagValue.textContent = fmtPrice(bar.close);
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}
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function startPriceTagTimer() {
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stopPriceTagTimer();
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tickLiveClock();
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priceTagTimer = setInterval(tickLiveClock, 1000);
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}
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function stopPriceTagTimer() {
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if (priceTagTimer) clearInterval(priceTagTimer);
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priceTagTimer = null;
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}
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function applyPriceAutoScale() {
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if (!chart) return;
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chart.priceScale("right").applyOptions({ autoScale: priceAutoScale });
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if (elPriceAuto) elPriceAuto.classList.toggle("is-on", priceAutoScale);
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}
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function indexCandles(candles) {
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candleByTime = {};
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(candles || []).forEach(function (c) {
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if (c && c.time != null) candleByTime[c.time] = c;
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});
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}
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function candleAtTime(t) {
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if (t == null) return null;
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return candleByTime[t] || null;
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}
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function buildVolumeData(candles) {
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return (candles || []).map(function (c) {
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const up = Number(c.close) >= Number(c.open);
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return {
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time: c.time,
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value: Number(c.volume) || 0,
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color: up ? "rgba(0, 255, 157, 0.5)" : "rgba(255, 77, 109, 0.5)",
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};
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});
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}
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function ensureChart() {
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if (chart && candleSeries && volumeSeries) return true;
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if (!window.LightweightCharts) {
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if (elStatus) {
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elStatus.className = "market-status err";
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elStatus.textContent = "图表库加载失败";
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}
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return false;
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}
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chart = LightweightCharts.createChart(chartHost, {
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layout: { background: { color: "#0a1018" }, textColor: "#b8d4e8" },
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grid: {
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vertLines: { visible: false },
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horzLines: { visible: false },
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},
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rightPriceScale: { borderColor: "#2a4058", autoScale: true },
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timeScale: {
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borderColor: "#2a4058",
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timeVisible: true,
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secondsVisible: false,
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rightOffset: RIGHT_OFFSET_BARS,
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},
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crosshair: {
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mode: LightweightCharts.CrosshairMode
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? LightweightCharts.CrosshairMode.Normal
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: 0,
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},
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});
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const candleOpts = {
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upColor: "#00ff9d",
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downColor: "#ff4d6d",
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borderVisible: false,
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wickUpColor: "#00ff9d",
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wickDownColor: "#ff4d6d",
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lastValueVisible: false,
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priceLineVisible: false,
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};
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if (typeof chart.addCandlestickSeries === "function") {
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candleSeries = chart.addCandlestickSeries(candleOpts);
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} else if (
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typeof chart.addSeries === "function" &&
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window.LightweightCharts &&
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window.LightweightCharts.CandlestickSeries
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) {
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candleSeries = chart.addSeries(window.LightweightCharts.CandlestickSeries, candleOpts);
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}
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if (!candleSeries) return false;
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const volOpts = {
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priceFormat: { type: "volume" },
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priceScaleId: "volume",
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lastValueVisible: false,
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};
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if (typeof chart.addHistogramSeries === "function") {
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volumeSeries = chart.addHistogramSeries(volOpts);
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} else if (
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typeof chart.addSeries === "function" &&
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window.LightweightCharts &&
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window.LightweightCharts.HistogramSeries
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) {
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volumeSeries = chart.addSeries(window.LightweightCharts.HistogramSeries, volOpts);
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}
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if (!volumeSeries) return false;
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chart.priceScale("right").applyOptions({
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scaleMargins: { top: 0.06, bottom: 0.28 },
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});
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chart.priceScale("volume").applyOptions({
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scaleMargins: { top: 0.78, bottom: 0 },
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});
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applyPriceAutoScale();
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chart.subscribeCrosshairMove(function (param) {
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if (!param || param.time == null) {
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showLatestOhlcv();
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return;
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}
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const bar = candleAtTime(param.time);
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if (!bar) {
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showLatestOhlcv();
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return;
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}
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paintOhlcv(bar);
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});
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chart.timeScale().subscribeVisibleLogicalRangeChange(function () {
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updateVisibleRangeMarkers();
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updatePriceTag();
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});
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window.addEventListener("resize", function () {
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if (!chart) return;
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chart.applyOptions({ width: chartHost.clientWidth, height: chartHost.clientHeight });
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updatePriceTag();
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});
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chart.applyOptions({ width: chartHost.clientWidth, height: chartHost.clientHeight });
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return true;
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}
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function clearMarkers() {
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rangeMarkers.forEach(function (m) {
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try {
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candleSeries.removePriceLine(m);
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} catch (e) {}
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});
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rangeMarkers = [];
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}
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function viewKey(exKey, sym, tf) {
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return (exKey || "") + "|" + (sym || "") + "|" + (tf || "");
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}
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function applyDefaultVisibleRange() {
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if (!chart || !lastCandles.length) return;
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const n = lastCandles.length;
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const visible = Math.min(DEFAULT_VISIBLE_BARS, n);
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const from = Math.max(0, n - visible);
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const to = n - 1;
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chart.timeScale().applyOptions({ rightOffset: RIGHT_OFFSET_BARS });
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chart.timeScale().setVisibleLogicalRange({ from: from, to: to });
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}
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function updateVisibleRangeMarkers() {
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clearMarkers();
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if (!candleSeries || !chart || !lastCandles.length) return;
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const range = chart.timeScale().getVisibleLogicalRange();
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if (!range) return;
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const from = Math.max(0, Math.floor(range.from));
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const to = Math.min(lastCandles.length - 1, Math.ceil(range.to));
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if (to < from) return;
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let hi = null;
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let lo = null;
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for (let i = from; i <= to; i++) {
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const c = lastCandles[i];
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if (!c) continue;
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if (!hi || c.high > hi.high) hi = c;
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if (!lo || c.low < lo.low) lo = c;
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}
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if (!hi || !lo) return;
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rangeMarkers.push(
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candleSeries.createPriceLine({
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price: Number(hi.high),
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color: "#ffb84d",
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lineWidth: 1,
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lineStyle: 2,
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axisLabelVisible: true,
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title: "高点",
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})
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);
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rangeMarkers.push(
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candleSeries.createPriceLine({
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price: Number(lo.low),
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color: "#4cd97f",
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lineWidth: 1,
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lineStyle: 2,
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axisLabelVisible: true,
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title: "低点",
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})
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);
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}
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function readQuery() {
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const qs = new URLSearchParams(window.location.search);
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const ex = qs.get("exchange_key") || qs.get("exchange") || "";
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const sym = qs.get("symbol") || "";
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const tf = qs.get("timeframe") || "";
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if (ex && elExchange) elExchange.value = ex;
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if (sym && elSymbol) elSymbol.value = sym;
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if (tf && elTf) elTf.value = tf;
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}
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function applyDefaults() {
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if (elSymbol && !elSymbol.value.trim()) elSymbol.value = "BTC/USDT";
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if (elTf && !elTf.value) elTf.value = "1d";
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}
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function startAutoRefresh() {
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stopAutoRefresh();
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refreshTimer = setInterval(function () {
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const page = document.getElementById("page-market");
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if (!page || page.classList.contains("hidden")) return;
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loadChart(false, { autoTick: true });
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}, AUTO_REFRESH_MS);
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}
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function stopAutoRefresh() {
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if (refreshTimer) clearInterval(refreshTimer);
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refreshTimer = null;
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}
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async function loadMeta() {
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const r = await fetch("/api/chart/meta", { credentials: "same-origin" });
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chartMeta = await r.json();
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if (!elExchange || !chartMeta.exchanges) return;
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elExchange.innerHTML = "";
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chartMeta.exchanges.forEach(function (ex) {
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const opt = document.createElement("option");
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opt.value = ex.key || ex.id;
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opt.textContent = ex.name || ex.key;
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elExchange.appendChild(opt);
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});
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readQuery();
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applyDefaults();
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updateExchangeDisplay();
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}
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async function loadChart(force, options) {
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options = options || {};
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const autoTick = !!options.autoTick;
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if (!ensureChart()) return;
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const exKey = (elExchange && elExchange.value) || "";
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const sym = (elSymbol && elSymbol.value.trim().toUpperCase()) || "";
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const tf = (elTf && elTf.value) || "1d";
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currentTf = tf;
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if (!exKey || !sym) {
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if (elStatus) {
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elStatus.className = "market-status err";
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elStatus.textContent = "请选择交易所并输入币种";
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}
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return;
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}
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const myToken = ++loadToken;
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const vKey = viewKey(exKey, sym, tf);
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const resetView = !!force || !autoTick || vKey !== lastViewKey;
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let savedRange = null;
|
|
if (!resetView && chart) {
|
|
savedRange = chart.timeScale().getVisibleLogicalRange();
|
|
}
|
|
if (!autoTick && elStatus) {
|
|
elStatus.className = "market-status";
|
|
elStatus.textContent = "加载中…";
|
|
}
|
|
updateHeaderLabels(sym, tf);
|
|
|
|
const qs = new URLSearchParams({
|
|
exchange_key: exKey,
|
|
symbol: sym,
|
|
timeframe: tf,
|
|
});
|
|
if (force) qs.set("refresh", "1");
|
|
|
|
try {
|
|
const r = await fetch("/api/chart/ohlcv?" + qs.toString(), { credentials: "same-origin" });
|
|
const data = await r.json();
|
|
if (myToken !== loadToken) return;
|
|
if (!r.ok) {
|
|
throw new Error(data.detail || data.msg || "请求失败");
|
|
}
|
|
if (!data.ok || !data.candles || !data.candles.length) {
|
|
throw new Error(data.msg || "无 K 线");
|
|
}
|
|
|
|
priceTick = data.price_tick;
|
|
lastCandles = data.candles;
|
|
indexCandles(lastCandles);
|
|
candleSeries.setData(lastCandles);
|
|
volumeSeries.setData(buildVolumeData(lastCandles));
|
|
if (resetView) {
|
|
lastViewKey = vKey;
|
|
applyDefaultVisibleRange();
|
|
} else if (savedRange) {
|
|
chart.timeScale().setVisibleLogicalRange(savedRange);
|
|
}
|
|
applyPriceAutoScale();
|
|
updateVisibleRangeMarkers();
|
|
showLatestOhlcv();
|
|
|
|
const limit = data.limit || lastCandles.length;
|
|
let hint =
|
|
"已加载 " +
|
|
data.candles.length +
|
|
" 根（目标 " +
|
|
limit +
|
|
"）· 库 " +
|
|
(data.from_cache || 0) +
|
|
" / 新拉 " +
|
|
(data.fetched || 0) +
|
|
"）· 每 5s 刷新";
|
|
if (data.stale && data.stale_message) {
|
|
hint += " · 缓存：" + data.stale_message;
|
|
}
|
|
if (elStatus) {
|
|
elStatus.className = data.stale ? "market-status warn" : "market-status";
|
|
elStatus.textContent = hint;
|
|
}
|
|
if (elUpdated) elUpdated.textContent = "数据 " + (data.updated_at || "--");
|
|
tickLiveClock();
|
|
} catch (e) {
|
|
if (myToken !== loadToken) return;
|
|
if (elStatus) {
|
|
elStatus.className = "market-status err";
|
|
elStatus.textContent = String(e.message || e);
|
|
}
|
|
}
|
|
}
|
|
|
|
function bind() {
|
|
if (elRefresh) {
|
|
elRefresh.addEventListener("click", function () {
|
|
loadChart(true);
|
|
});
|
|
}
|
|
if (elTf) {
|
|
elTf.addEventListener("change", function () {
|
|
currentTf = (elTf && elTf.value) || "1d";
|
|
tickLiveClock();
|
|
loadChart(false);
|
|
});
|
|
}
|
|
if (elExchange) {
|
|
elExchange.addEventListener("change", function () {
|
|
updateExchangeDisplay();
|
|
loadChart(false);
|
|
});
|
|
}
|
|
if (elSymbol) {
|
|
elSymbol.addEventListener("keydown", function (e) {
|
|
if (e.key === "Enter") loadChart(false);
|
|
});
|
|
}
|
|
const btnLoad = document.getElementById("market-load");
|
|
if (btnLoad) {
|
|
btnLoad.addEventListener("click", function () {
|
|
loadChart(false);
|
|
});
|
|
}
|
|
if (elPriceAuto) {
|
|
elPriceAuto.addEventListener("click", function () {
|
|
priceAutoScale = !priceAutoScale;
|
|
applyPriceAutoScale();
|
|
});
|
|
}
|
|
}
|
|
|
|
window.hubMarketChart = {
|
|
init: async function () {
|
|
if (!marketInited) {
|
|
marketInited = true;
|
|
await loadMeta();
|
|
bind();
|
|
}
|
|
startAutoRefresh();
|
|
await loadChart(false);
|
|
startPriceTagTimer();
|
|
},
|
|
reload: function (force) {
|
|
loadChart(!!force);
|
|
},
|
|
startAutoRefresh: startAutoRefresh,
|
|
stopAutoRefresh: stopAutoRefresh,
|
|
stopPriceTagTimer: stopPriceTagTimer,
|
|
};
|
|
|
|
if (
|
|
document.getElementById("page-market") &&
|
|
!document.getElementById("page-market").classList.contains("hidden")
|
|
) {
|
|
window.hubMarketChart.init();
|
|
}
|
|
})();
|