dekun
827 lines
29 KiB
JavaScript
827 lines
29 KiB
JavaScript
(function () {
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var chartEl = document.getElementById('market-chart');
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var emptyEl = document.getElementById('market-chart-empty');
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var wrapEl = document.getElementById('market-chart-wrap');
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var chart = null;
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var currentPeriod = '15m';
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var klineSource = null;
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var streamActive = false;
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var reconnectTimer = null;
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var lastData = null;
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var lastPrevClose = null;
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var chartOpts = { prevClose: false, ma: false, gapDay: false };
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var dataZoomBound = false;
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function getSymbol() {
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var hidden = document.getElementById('market-symbol-hidden');
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var input = document.getElementById('market-symbol-input');
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if (hidden && hidden.value) return hidden.value.trim();
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if (input && input.value) return input.value.trim();
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return '';
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}
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function getMarketCodes() {
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return {
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symbol: getSymbol(),
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market_code: (document.getElementById('market-market-code') || {}).value || '',
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sina_code: (document.getElementById('market-sina-code') || {}).value || '',
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};
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}
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function themeColors() {
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var dark = document.documentElement.getAttribute('data-theme') !== 'light';
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return {
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bg: dark ? '#0a0c14' : '#f4f7fc',
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text: dark ? '#a8b0c8' : '#5c6578',
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title: dark ? '#e8eaf6' : '#1a2233',
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grid: dark ? '#1a2038' : '#e2e8f0',
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up: dark ? '#4cd97f' : '#15803d',
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down: dark ? '#ff6b7a' : '#dc2626',
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line: dark ? '#4cc2ff' : '#2563eb',
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area: dark ? 'rgba(76,194,255,0.12)' : 'rgba(37,99,235,0.1)',
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slider: dark ? '#1e2640' : '#cbd5e1',
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sliderFill: dark ? '#4cc2ff' : '#2563eb',
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ma21: dark ? '#ffb347' : '#d97706',
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ma55: dark ? '#c084fc' : '#7c3aed',
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prevClose: dark ? '#fbbf24' : '#b45309',
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};
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}
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function isTradingSession() {
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var d = new Date();
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var wd = d.getDay();
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if (wd === 0) return false;
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if (wd === 6 && d.getHours() < 21) return false;
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var t = d.getHours() * 60 + d.getMinutes();
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function inRange(sh, sm, eh, em) {
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return t >= sh * 60 + sm && t < eh * 60 + em;
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}
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if (inRange(9, 0, 11, 30)) return true;
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if (inRange(13, 30, 15, 0)) return true;
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if (inRange(21, 0, 24, 0)) return true;
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if (inRange(0, 0, 2, 30)) return true;
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return false;
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}
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function calcMA(period, closes) {
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var result = [];
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for (var i = 0; i < closes.length; i++) {
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if (i < period - 1) {
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result.push(null);
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continue;
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}
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var sum = 0;
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for (var j = 0; j < period; j++) sum += closes[i - j];
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result.push(+(sum / period).toFixed(4));
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}
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return result;
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}
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function findMaCrosses(ma21, ma55) {
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var points = [];
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for (var i = 1; i < ma21.length; i++) {
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if (ma21[i] == null || ma55[i] == null || ma21[i - 1] == null || ma55[i - 1] == null) continue;
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var prev = ma21[i - 1] - ma55[i - 1];
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var curr = ma21[i] - ma55[i];
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if (prev <= 0 && curr > 0) points.push({ i: i, type: 'golden' });
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if (prev >= 0 && curr < 0) points.push({ i: i, type: 'death' });
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}
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return points;
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}
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function getDefaultZoomStart() {
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return currentPeriod === 'timeshare' ? 60 : 75;
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}
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function getZoomRange() {
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if (!chart) return { start: getDefaultZoomStart(), end: 100 };
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var opt = chart.getOption();
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if (opt && opt.dataZoom && opt.dataZoom.length) {
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var z = opt.dataZoom[0];
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if (z.start != null && z.end != null) return { start: z.start, end: z.end };
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}
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return { start: getDefaultZoomStart(), end: 100 };
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}
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function visibleIndices(bars, zoom) {
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var n = bars.length;
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if (!n) return { start: 0, end: 0 };
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var start = Math.floor(n * zoom.start / 100);
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var end = Math.min(n - 1, Math.ceil(n * zoom.end / 100) - 1);
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if (end < start) end = start;
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return { start: start, end: end };
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}
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function computeVisibleHL(bars, startIdx, endIdx) {
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var maxH = -Infinity;
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var minL = Infinity;
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var maxI = startIdx;
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var minI = startIdx;
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for (var i = startIdx; i <= endIdx; i++) {
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var b = bars[i];
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if (!b) continue;
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if (b.high > maxH) { maxH = b.high; maxI = i; }
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if (b.low < minL) { minL = b.low; minI = i; }
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}
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if (maxH === -Infinity) return null;
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return { maxH: maxH, minL: minL, maxI: maxI, minI: minI };
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}
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function buildHLMarkPoint(hl, c) {
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if (!hl) return { data: [] };
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return {
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symbol: 'circle',
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symbolSize: 6,
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data: [
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{
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name: '高',
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xAxis: hl.maxI,
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yAxis: hl.maxH,
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value: hl.maxH.toFixed(2),
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itemStyle: { color: c.up },
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label: {
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show: true,
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formatter: '高 ' + hl.maxH.toFixed(2),
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color: c.up,
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fontSize: 11,
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position: 'top',
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},
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},
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{
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name: '低',
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xAxis: hl.minI,
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yAxis: hl.minL,
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value: hl.minL.toFixed(2),
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itemStyle: { color: c.down },
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label: {
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show: true,
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formatter: '低 ' + hl.minL.toFixed(2),
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color: c.down,
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fontSize: 11,
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position: 'bottom',
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},
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},
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],
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};
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}
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function buildMaCrossMarkPoint(crosses, bars, c) {
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if (!crosses.length) return { data: [] };
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return {
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symbol: 'pin',
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symbolSize: 28,
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data: crosses.map(function (p) {
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var b = bars[p.i];
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return {
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name: p.type === 'golden' ? '金叉' : '死叉',
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xAxis: p.i,
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yAxis: b ? b.close : 0,
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itemStyle: { color: p.type === 'golden' ? c.up : c.down },
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label: {
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show: true,
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formatter: p.type === 'golden' ? '金叉' : '死叉',
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fontSize: 10,
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color: p.type === 'golden' ? c.up : c.down,
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},
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};
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}),
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};
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}
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function buildPrevCloseMarkLine(prevClose, c) {
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if (prevClose == null) return { data: [] };
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var v = Number(prevClose);
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return {
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silent: true,
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symbol: 'none',
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lineStyle: { color: c.prevClose, type: 'dashed', width: 1 },
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label: {
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show: true,
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formatter: '昨收 ' + v.toFixed(2),
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color: c.prevClose,
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fontSize: 10,
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},
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data: [{ yAxis: v }],
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};
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}
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function initChart() {
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if (!chartEl || !window.echarts) return;
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chart = echarts.init(chartEl);
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window.addEventListener('resize', function () {
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if (chart) chart.resize();
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});
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document.addEventListener('click', function (e) {
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if (e.target.closest('[data-theme-pick]')) {
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setTimeout(function () {
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if (chart && lastData) renderChart(lastData, true);
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}, 100);
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}
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});
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}
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function bindDataZoomHL() {
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if (!chart || dataZoomBound) return;
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dataZoomBound = true;
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chart.on('dataZoom', function () {
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updateVisibleHLMark();
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});
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}
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function updateVisibleHLMark() {
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if (!chart || !lastData || !lastData.bars) return;
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var bars = lastData.bars;
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var zoom = getZoomRange();
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var idx = visibleIndices(bars, zoom);
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var hl = computeVisibleHL(bars, idx.start, idx.end);
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var c = themeColors();
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chart.setOption({
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series: [{ id: 'main', markPoint: buildHLMarkPoint(hl, c) }],
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});
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}
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function getDataZoom(c, preserve) {
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var defStart = getDefaultZoomStart();
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var xZoom = {
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type: 'inside',
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id: 'dzInsideX',
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xAxisIndex: [0, 1],
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start: defStart,
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end: 100,
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filterMode: 'none',
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zoomOnMouseWheel: true,
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moveOnMouseMove: true,
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moveOnMouseWheel: false,
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preventDefaultMouseMove: true,
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minSpan: 2,
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};
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var yZoom = {
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type: 'inside',
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id: 'dzInsideY',
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yAxisIndex: [0],
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orient: 'vertical',
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filterMode: 'none',
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zoomOnMouseWheel: true,
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moveOnMouseMove: true,
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preventDefaultMouseMove: true,
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};
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var slider = {
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type: 'slider',
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id: 'dzSlider',
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xAxisIndex: [0, 1],
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start: defStart,
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end: 100,
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height: 22,
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bottom: 4,
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borderColor: c.grid,
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backgroundColor: c.bg,
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fillerColor: c.area,
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handleStyle: { color: c.sliderFill },
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dataBackground: {
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lineStyle: { color: c.grid, opacity: 0.35 },
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areaStyle: { color: c.area },
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},
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textStyle: { color: c.text, fontSize: 10 },
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filterMode: 'none',
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brushSelect: false,
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};
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var zoom = [xZoom, yZoom, slider];
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if (preserve && chart) {
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var opt = chart.getOption();
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if (opt && opt.dataZoom) {
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opt.dataZoom.forEach(function (z) {
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if (!z.id) return;
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var target = zoom.find(function (t) { return t.id === z.id; });
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if (target && z.start != null && z.end != null) {
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target.start = z.start;
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target.end = z.end;
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}
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});
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}
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}
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return zoom;
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}
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function isFollowingLatest() {
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var z = getZoomRange();
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return z.end >= 98;
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}
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function mapSeriesData(bars, values, gapDay) {
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if (!gapDay) return values;
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return bars.map(function (b, i) {
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var v = values[i];
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if (v == null || b.timestamp == null) return v;
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return [b.timestamp, v];
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});
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}
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function renderChart(data, preserveZoom) {
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if (!chart) return;
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lastData = data;
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if (data.prev_close != null) lastPrevClose = data.prev_close;
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var c = themeColors();
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var bars = data.bars || [];
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var times = bars.map(function (b) { return b.time; });
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var isLine = data.chart_type === 'line' || data.period === 'timeshare';
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var gapDay = chartOpts.gapDay;
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var followLatest = preserveZoom && isFollowingLatest();
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var dataZoom = getDataZoom(c, preserveZoom);
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var zoom = preserveZoom ? getZoomRange() : { start: dataZoom[0].start, end: dataZoom[0].end };
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var vIdx = visibleIndices(bars, zoom);
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var hl = computeVisibleHL(bars, vIdx.start, vIdx.end);
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var closes = bars.map(function (b) { return b.close; });
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var ma21 = chartOpts.ma ? calcMA(21, closes) : null;
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var ma55 = chartOpts.ma ? calcMA(55, closes) : null;
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var crosses = chartOpts.ma ? findMaCrosses(ma21, ma55) : [];
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var prevCloseVal = lastPrevClose != null ? lastPrevClose : data.prev_close;
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var showPrev = chartOpts.prevClose && prevCloseVal != null;
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var grids = [
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{ left: 56, right: 24, top: 44, height: '50%' },
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{ left: 56, right: 24, top: '66%', height: '14%' },
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];
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var xAxisType = gapDay ? 'time' : 'category';
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var xAxis0 = {
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type: xAxisType,
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gridIndex: 0,
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boundaryGap: gapDay ? false : true,
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axisLabel: { color: c.text, fontSize: 10 },
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axisLine: { lineStyle: { color: c.grid } },
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splitLine: { show: false },
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};
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var xAxis1 = {
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type: xAxisType,
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gridIndex: 1,
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boundaryGap: gapDay ? false : true,
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axisLabel: { show: false },
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axisLine: { lineStyle: { color: c.grid } },
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splitLine: { show: false },
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};
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if (!gapDay) {
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xAxis0.data = times;
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xAxis1.data = times;
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}
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var base = {
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backgroundColor: c.bg,
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animation: false,
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tooltip: { trigger: 'axis', axisPointer: { type: 'cross' } },
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axisPointer: { link: [{ xAxisIndex: 'all' }] },
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grid: grids,
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xAxis: [xAxis0, xAxis1],
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yAxis: [
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{
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scale: true,
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gridIndex: 0,
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splitLine: { show: false },
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axisLabel: { color: c.text },
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},
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{
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scale: true,
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gridIndex: 1,
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splitLine: { show: false },
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axisLabel: { color: c.text, fontSize: 10 },
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splitNumber: 2,
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},
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],
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};
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if (!preserveZoom) {
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base.dataZoom = dataZoom;
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}
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var series = [];
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var mainMark = {
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markPoint: buildHLMarkPoint(hl, c),
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};
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if (showPrev) mainMark.markLine = buildPrevCloseMarkLine(prevCloseVal, c);
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if (chartOpts.ma && crosses.length) {
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var crossMp = buildMaCrossMarkPoint(crosses, bars, c);
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mainMark.markPoint.data = mainMark.markPoint.data.concat(crossMp.data);
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}
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if (isLine) {
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var lineData = mapSeriesData(bars, closes, gapDay);
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series.push({
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id: 'main',
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name: '价格',
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type: 'line',
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data: lineData,
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smooth: true,
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showSymbol: false,
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lineStyle: { width: 1.5, color: c.line },
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areaStyle: { color: c.area },
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xAxisIndex: 0,
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yAxisIndex: 0,
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markPoint: mainMark.markPoint,
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markLine: mainMark.markLine,
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});
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} else {
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var candle = bars.map(function (b) {
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if (gapDay && b.timestamp) {
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return [b.timestamp, b.open, b.close, b.low, b.high];
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}
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return [b.open, b.close, b.low, b.high];
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});
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series.push({
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id: 'main',
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name: 'K线',
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type: 'candlestick',
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data: candle,
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itemStyle: {
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color: c.up,
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color0: c.down,
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borderColor: c.up,
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borderColor0: c.down,
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},
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xAxisIndex: 0,
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yAxisIndex: 0,
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markPoint: mainMark.markPoint,
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markLine: mainMark.markLine,
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});
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}
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if (chartOpts.ma && ma21 && ma55) {
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series.push({
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id: 'ma21',
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name: 'MA21',
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type: 'line',
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data: mapSeriesData(bars, ma21, gapDay),
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smooth: true,
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showSymbol: false,
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lineStyle: { width: 1, color: c.ma21 },
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xAxisIndex: 0,
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yAxisIndex: 0,
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});
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series.push({
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id: 'ma55',
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name: 'MA55',
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type: 'line',
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data: mapSeriesData(bars, ma55, gapDay),
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smooth: true,
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showSymbol: false,
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lineStyle: { width: 1, color: c.ma55 },
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xAxisIndex: 0,
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yAxisIndex: 0,
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});
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}
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var vols = bars.map(function (b) {
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var up = b.close >= b.open;
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var val = {
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value: b.volume,
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itemStyle: { color: up ? c.up : c.down, opacity: 0.65 },
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};
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if (gapDay && b.timestamp) {
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return { value: [b.timestamp, b.volume], itemStyle: val.itemStyle };
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}
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return val;
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});
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series.push({
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id: 'volume',
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name: '成交量',
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type: 'bar',
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data: vols,
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xAxisIndex: 1,
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yAxisIndex: 1,
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});
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if (!isLine) {
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base.tooltip = {
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trigger: 'axis',
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axisPointer: { type: 'cross' },
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formatter: function (params) {
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var idx = params[0] && params[0].dataIndex;
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if (idx == null || !bars[idx]) return '';
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var b = bars[idx];
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var lines = [b.time, '开 ' + b.open, '高 ' + b.high, '低 ' + b.low, '收 ' + b.close, '量 ' + b.volume];
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if (ma21 && ma21[idx] != null) lines.push('MA21 ' + ma21[idx]);
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if (ma55 && ma55[idx] != null) lines.push('MA55 ' + ma55[idx]);
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return lines.join('<br/>');
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},
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};
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}
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if (preserveZoom) {
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chart.setOption(Object.assign(base, { series: series }), false);
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} else {
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chart.setOption(Object.assign(base, { series: series }), true);
|
|
dataZoomBound = false;
|
|
}
|
|
|
|
var title = (data.chart_symbol || data.symbol || '') + ' · ' + periodLabel(data.period);
|
|
chart.setOption({
|
|
title: { text: title, left: 12, top: 8, textStyle: { color: c.title, fontSize: 13, fontWeight: 600 } },
|
|
legend: chartOpts.ma ? {
|
|
data: ['MA21', 'MA55'],
|
|
top: 8,
|
|
right: 12,
|
|
textStyle: { color: c.text, fontSize: 10 },
|
|
} : { show: false },
|
|
});
|
|
|
|
if (followLatest) {
|
|
var span = zoom.end - zoom.start;
|
|
chart.dispatchAction({
|
|
type: 'dataZoom',
|
|
dataZoomIndex: 0,
|
|
start: Math.max(0, 100 - span),
|
|
end: 100,
|
|
});
|
|
chart.dispatchAction({
|
|
type: 'dataZoom',
|
|
dataZoomIndex: 2,
|
|
start: Math.max(0, 100 - span),
|
|
end: 100,
|
|
});
|
|
}
|
|
|
|
bindDataZoomHL();
|
|
}
|
|
|
|
function periodLabel(key) {
|
|
var tabs = document.querySelectorAll('.period-tab');
|
|
for (var i = 0; i < tabs.length; i++) {
|
|
if (tabs[i].getAttribute('data-period') === key) return tabs[i].textContent;
|
|
}
|
|
return key;
|
|
}
|
|
|
|
function hideEmptyOverlay() {
|
|
if (wrapEl) wrapEl.classList.add('has-data');
|
|
}
|
|
|
|
function showEmptyOverlay(text) {
|
|
if (emptyEl) emptyEl.textContent = text;
|
|
if (wrapEl) wrapEl.classList.remove('has-data');
|
|
}
|
|
|
|
function setLoading(on) {
|
|
var btn = document.getElementById('market-load-btn');
|
|
if (btn) {
|
|
btn.disabled = on;
|
|
btn.textContent = on ? '连接中…' : '查看';
|
|
}
|
|
if (!wrapEl) return;
|
|
if (on && !lastData) {
|
|
wrapEl.classList.add('loading');
|
|
showEmptyOverlay('请选择合约并点击「查看」');
|
|
} else {
|
|
wrapEl.classList.remove('loading');
|
|
if (lastData) hideEmptyOverlay();
|
|
}
|
|
}
|
|
|
|
function klineSourceLabel(src) {
|
|
if (src === 'ctp') return 'CTP';
|
|
if (src === 'ctp+remote') return '新浪+CTP';
|
|
if (src === 'local') return '本地缓存';
|
|
return '新浪';
|
|
}
|
|
|
|
function updateRefreshHint(disconnected) {
|
|
var el = document.getElementById('market-refresh-hint');
|
|
if (!el) return;
|
|
if (!getSymbol()) {
|
|
el.textContent = '';
|
|
return;
|
|
}
|
|
if (disconnected) {
|
|
el.textContent = 'SSE 连接中断，正在重连…';
|
|
return;
|
|
}
|
|
if (!streamActive) {
|
|
el.textContent = '';
|
|
return;
|
|
}
|
|
var src = '';
|
|
if (lastData && lastData.source) {
|
|
src = ' · ' + klineSourceLabel(lastData.source);
|
|
}
|
|
if (isTradingSession()) {
|
|
el.textContent = '交易中 · 后台刷新 · SSE 推送（约1秒）' + src;
|
|
} else {
|
|
el.textContent = 'SSE 推送 · 非交易时段低频刷新' + src;
|
|
}
|
|
}
|
|
|
|
function updatePrevCloseDisplay(val) {
|
|
var prevEl = document.getElementById('market-quote-prev');
|
|
if (!prevEl) return;
|
|
if (val != null && !isNaN(Number(val))) {
|
|
prevEl.textContent = '昨收 ' + Number(val).toFixed(2);
|
|
} else {
|
|
prevEl.textContent = '';
|
|
}
|
|
}
|
|
|
|
function applyQuote(data) {
|
|
var priceEl = document.getElementById('market-quote-price');
|
|
var nameEl = document.getElementById('market-quote-name');
|
|
if (nameEl && data.name) nameEl.textContent = data.name + ' ' + (data.symbol || '');
|
|
if (priceEl) {
|
|
priceEl.textContent = data.price != null ? Number(data.price).toFixed(2) : '—';
|
|
}
|
|
if (data.quote_source && lastData) {
|
|
updateQuoteMeta(Object.assign({}, lastData, { quote_source: data.quote_source }));
|
|
}
|
|
if (data.prev_close != null) {
|
|
lastPrevClose = data.prev_close;
|
|
updatePrevCloseDisplay(data.prev_close);
|
|
if (chartOpts.prevClose && lastData) renderChart(lastData, true);
|
|
}
|
|
}
|
|
|
|
function stopKlineStream() {
|
|
streamActive = false;
|
|
if (reconnectTimer) {
|
|
clearTimeout(reconnectTimer);
|
|
reconnectTimer = null;
|
|
}
|
|
if (klineSource) {
|
|
klineSource.close();
|
|
klineSource = null;
|
|
}
|
|
}
|
|
|
|
function scheduleReconnect() {
|
|
if (reconnectTimer) return;
|
|
updateRefreshHint(true);
|
|
reconnectTimer = setTimeout(function () {
|
|
reconnectTimer = null;
|
|
if (getSymbol()) startKlineStream(false);
|
|
}, 3000);
|
|
}
|
|
|
|
function startKlineStream(showLoading) {
|
|
stopKlineStream();
|
|
var symbol = getSymbol();
|
|
if (!symbol) {
|
|
alert('请先选择或输入合约代码');
|
|
return;
|
|
}
|
|
if (showLoading) setLoading(true);
|
|
|
|
var codes = getMarketCodes();
|
|
var q = 'symbol=' + encodeURIComponent(symbol) +
|
|
'&period=' + encodeURIComponent(currentPeriod);
|
|
if (codes.market_code) q += '&market_code=' + encodeURIComponent(codes.market_code);
|
|
if (codes.sina_code) q += '&sina_code=' + encodeURIComponent(codes.sina_code);
|
|
|
|
klineSource = new EventSource('/api/kline/stream?' + q);
|
|
streamActive = true;
|
|
updateRefreshHint(false);
|
|
|
|
klineSource.addEventListener('kline', function (e) {
|
|
try {
|
|
var data = JSON.parse(e.data);
|
|
if (!data.bars || !data.bars.length) return;
|
|
hideEmptyOverlay();
|
|
renderChart(data, lastData !== null);
|
|
updateQuoteMeta(data);
|
|
if (data.prev_close != null) updatePrevCloseDisplay(data.prev_close);
|
|
updateRefreshHint(false);
|
|
setLoading(false);
|
|
} catch (err) { /* ignore */ }
|
|
});
|
|
|
|
klineSource.addEventListener('quote', function (e) {
|
|
try {
|
|
applyQuote(JSON.parse(e.data));
|
|
} catch (err) { /* ignore */ }
|
|
});
|
|
|
|
klineSource.onerror = function () {
|
|
stopKlineStream();
|
|
scheduleReconnect();
|
|
};
|
|
}
|
|
|
|
function updateQuoteMeta(data) {
|
|
var meta = document.getElementById('market-quote-meta');
|
|
if (meta) {
|
|
var parts = [];
|
|
if (data.count) parts.push('共 ' + data.count + ' 根 · ' + periodLabel(data.period));
|
|
if (data.source) parts.push('K线 ' + klineSourceLabel(data.source));
|
|
if (data.quote_source) {
|
|
parts.push('报价 ' + (data.quote_source === 'ctp' ? 'CTP' : '新浪'));
|
|
}
|
|
meta.textContent = parts.join(' · ');
|
|
}
|
|
var nameEl = document.getElementById('market-quote-name');
|
|
var hiddenName = document.getElementById('market-symbol-name');
|
|
if (nameEl && !(nameEl.textContent && nameEl.textContent.trim())) {
|
|
nameEl.textContent = (hiddenName && hiddenName.value) || data.symbol || '—';
|
|
}
|
|
}
|
|
|
|
function loadKline(showLoading) {
|
|
startKlineStream(showLoading);
|
|
}
|
|
|
|
function shiftDataZoom(delta) {
|
|
if (!chart) return;
|
|
var opt = chart.getOption();
|
|
if (!opt || !opt.dataZoom || !opt.dataZoom.length) return;
|
|
var z = opt.dataZoom[0];
|
|
var span = (z.end - z.start) || 20;
|
|
var newSpan = Math.max(5, Math.min(100, span + delta));
|
|
var center = (z.start + z.end) / 2;
|
|
var start = Math.max(0, center - newSpan / 2);
|
|
var end = Math.min(100, center + newSpan / 2);
|
|
if (end - start < newSpan) {
|
|
if (start === 0) end = newSpan;
|
|
else start = end - newSpan;
|
|
}
|
|
chart.dispatchAction({ type: 'dataZoom', dataZoomIndex: 0, start: start, end: end });
|
|
chart.dispatchAction({ type: 'dataZoom', dataZoomIndex: 2, start: start, end: end });
|
|
}
|
|
|
|
function resetDataZoom() {
|
|
if (!chart) return;
|
|
var start = getDefaultZoomStart();
|
|
chart.dispatchAction({ type: 'dataZoom', dataZoomIndex: 0, start: start, end: 100 });
|
|
chart.dispatchAction({ type: 'dataZoom', dataZoomIndex: 2, start: start, end: 100 });
|
|
chart.dispatchAction({ type: 'dataZoom', dataZoomIndex: 1, start: 0, end: 100 });
|
|
}
|
|
|
|
function bindPeriodTabs() {
|
|
var tabs = document.getElementById('market-period-tabs');
|
|
if (!tabs) return;
|
|
tabs.addEventListener('click', function (e) {
|
|
var btn = e.target.closest('.period-tab');
|
|
if (!btn) return;
|
|
tabs.querySelectorAll('.period-tab').forEach(function (el) { el.classList.remove('active'); });
|
|
btn.classList.add('active');
|
|
currentPeriod = btn.getAttribute('data-period') || '15m';
|
|
if (getSymbol()) loadKline(true);
|
|
});
|
|
}
|
|
|
|
function bindZoomButtons() {
|
|
var zoomIn = document.getElementById('chart-zoom-in');
|
|
var zoomOut = document.getElementById('chart-zoom-out');
|
|
var zoomReset = document.getElementById('chart-zoom-reset');
|
|
if (zoomIn) zoomIn.addEventListener('click', function () { shiftDataZoom(-12); });
|
|
if (zoomOut) zoomOut.addEventListener('click', function () { shiftDataZoom(12); });
|
|
if (zoomReset) zoomReset.addEventListener('click', resetDataZoom);
|
|
}
|
|
|
|
function bindChartOptions() {
|
|
var prevCb = document.getElementById('chart-opt-prev-close');
|
|
var maCb = document.getElementById('chart-opt-ma');
|
|
var gapCb = document.getElementById('chart-opt-gap-day');
|
|
if (prevCb) {
|
|
prevCb.addEventListener('change', function () {
|
|
chartOpts.prevClose = prevCb.checked;
|
|
if (lastData) renderChart(lastData, true);
|
|
});
|
|
}
|
|
if (maCb) {
|
|
maCb.addEventListener('change', function () {
|
|
chartOpts.ma = maCb.checked;
|
|
if (lastData) renderChart(lastData, true);
|
|
});
|
|
}
|
|
if (gapCb) {
|
|
gapCb.addEventListener('change', function () {
|
|
chartOpts.gapDay = gapCb.checked;
|
|
if (lastData) renderChart(lastData, false);
|
|
});
|
|
}
|
|
}
|
|
|
|
document.addEventListener('DOMContentLoaded', function () {
|
|
initChart();
|
|
bindPeriodTabs();
|
|
bindZoomButtons();
|
|
bindChartOptions();
|
|
|
|
var active = document.querySelector('.period-tab.active');
|
|
if (active) currentPeriod = active.getAttribute('data-period') || '15m';
|
|
|
|
var loadBtn = document.getElementById('market-load-btn');
|
|
if (loadBtn) loadBtn.addEventListener('click', function () { loadKline(true); });
|
|
|
|
var hidden = document.getElementById('market-symbol-hidden');
|
|
var input = document.getElementById('market-symbol-input');
|
|
if (input) {
|
|
input.addEventListener('symbol-selected', function () {
|
|
lastPrevClose = null;
|
|
updatePrevCloseDisplay(null);
|
|
loadKline(true);
|
|
});
|
|
}
|
|
if (hidden && hidden.value) {
|
|
if (input && !input.value) input.value = hidden.value;
|
|
loadKline(true);
|
|
} else {
|
|
updateRefreshHint(false);
|
|
}
|
|
|
|
window.addEventListener('beforeunload', stopKlineStream);
|
|
});
|
|
})();
|