feat(web): 增量自动刷新、结构区修复与默认指标/周期

自动刷新常态只拉 recent 尾部 K，每 1 分钟全量重算缠论；修复结构区缓存导入；默认指标/4h·1h·15m/近30天；同步 ECR-009 screener 相关改动。

Co-authored-by: Cursor <cursoragent@cursor.com>

web/static/js/app/chart_sync.js

@@ -9,11 +9,26 @@ function updateTradingViewData() {
             return;
         }
         
-        // 保存当前的可视范围
+        // 优先用请求前冻结的视窗；否则现场拍（自动刷新短间隔 delta≈0，两种都稳）
+        const frozen = window._preserveViewOnRefresh;
+        const oldBarCount = window._preserveViewBarCount || 0;
+        let savedScrollPosition = null;
         if (tvWidget.mainChart) {
-            tvWidget.state.visibleRange = tvWidget.mainChart.timeScale().getVisibleRange();
-            tvWidget.state.logicalRange = tvWidget.mainChart.timeScale().getVisibleLogicalRange();
+            const ts = tvWidget.mainChart.timeScale();
+            if (frozen) {
+                tvWidget.state.visibleRange = frozen.visibleRange;
+                tvWidget.state.logicalRange = frozen.logicalRange;
+                savedScrollPosition = (typeof frozen.scrollPosition === 'number') ? frozen.scrollPosition : null;
+            } else {
+                tvWidget.state.visibleRange = ts.getVisibleRange();
+                tvWidget.state.logicalRange = ts.getVisibleLogicalRange();
+                try {
+                    savedScrollPosition = ts.scrollPosition ? ts.scrollPosition() : null;
+                } catch (e) {}
+            }
         }
+        window._preserveViewOnRefresh = null;
+        window._preserveViewBarCount = 0;
         
         // 检查是否显示原始K线
         const showOriginalKline = $('#showOriginalKline').is(':checked');
@@ -71,6 +86,9 @@ function updateTradingViewData() {
                 };
             });
         }
+
+        const newBarCount = candles.length;
+        const barDelta = (oldBarCount > 0 && newBarCount > 0) ? (newBarCount - oldBarCount) : 0;
         
         // 更新主系列数据（根据klineType）
         const klineType = ($('#klineType').val() || (showOriginalKline ? 'candlestick' : 'line'));
@@ -270,23 +288,54 @@ function updateTradingViewData() {
         // 更新EMA52显示
         updateEMA52Display(currentData);
         
-        // 恢复之前的可视范围 - 优先使用visibleRange以确保时间轴对齐
+        // 与自动刷新一致：增量更新绝不碰 barSpacing（缩放本来就留在图表实例上）。
+        // 一写 barSpacing，LWC 会按右边缘重锚 → 放大往右、缩小往左。
+        // 这里只在 setData 之后把位置扳回刷新前的 logical / time 窗口。
         if (tvWidget.mainChart) {
-            if (tvWidget.state.visibleRange) {
-                console.log('🔄 恢复可见范围:', tvWidget.state.visibleRange);
-                tvWidget.mainChart.timeScale().setVisibleRange(tvWidget.state.visibleRange);
-                if (tvWidget.volumeChart) tvWidget.volumeChart.timeScale().setVisibleRange(tvWidget.state.visibleRange);
-                if (tvWidget.atrChart) tvWidget.atrChart.timeScale().setVisibleRange(tvWidget.state.visibleRange);
-                if (tvWidget.macdChart) tvWidget.macdChart.timeScale().setVisibleRange(tvWidget.state.visibleRange);
-                if (tvWidget.chanMacdChart) tvWidget.chanMacdChart.timeScale().setVisibleRange(tvWidget.state.visibleRange);
-            } else if (tvWidget.state.logicalRange) {
-                console.log('🔄 恢复逻辑范围:', tvWidget.state.logicalRange);
-                tvWidget.mainChart.timeScale().setVisibleLogicalRange(tvWidget.state.logicalRange);
-                if (tvWidget.volumeChart) tvWidget.volumeChart.timeScale().setVisibleLogicalRange(tvWidget.state.logicalRange);
-                if (tvWidget.atrChart) tvWidget.atrChart.timeScale().setVisibleLogicalRange(tvWidget.state.logicalRange);
-                if (tvWidget.macdChart) tvWidget.macdChart.timeScale().setVisibleLogicalRange(tvWidget.state.logicalRange);
-                if (tvWidget.chanMacdChart) tvWidget.chanMacdChart.timeScale().setVisibleLogicalRange(tvWidget.state.logicalRange);
-            }
+            const charts = [
+                tvWidget.mainChart,
+                tvWidget.volumeChart,
+                tvWidget.atrChart,
+                tvWidget.macdChart,
+                tvWidget.chanMacdChart
+            ].filter(Boolean);
+
+            const vr = tvWidget.state.visibleRange;
+            const lr = tvWidget.state.logicalRange;
+            const savedScroll = savedScrollPosition;
+
+            const applyPosition = function (tag) {
+                let ok = false;
+                if (lr && lr.from !== undefined && lr.to !== undefined) {
+                    charts.forEach(c => {
+                        try {
+                            c.timeScale().setVisibleLogicalRange({ from: lr.from, to: lr.to });
+                            ok = true;
+                        } catch (e) {}
+                    });
+                    if (ok) console.log('🔄 恢复位置 logical' + (tag || '') + ':', lr);
+                }
+                if (!ok && vr && vr.from !== undefined && vr.to !== undefined) {
+                    charts.forEach(c => {
+                        try {
+                            c.timeScale().setVisibleRange(vr);
+                            ok = true;
+                        } catch (e) {}
+                    });
+                    if (ok) console.log('🔄 恢复位置 time' + (tag || '') + ':', vr);
+                }
+                if (!ok && typeof savedScroll === 'number') {
+                    const pos = savedScroll + (barDelta || 0);
+                    charts.forEach(c => {
+                        try { c.timeScale().scrollToPosition(pos, false); } catch (e) {}
+                    });
+                    console.log('🔄 恢复位置 scroll' + (tag || '') + ':', pos);
+                }
+            };
+
+            applyPosition('');
+            setTimeout(function () { applyPosition('@0'); }, 0);
+            setTimeout(function () { applyPosition('@50'); }, 50);
         }
         
         console.log('增量更新图表完成');

web/static/js/app/chart_tv_finalize.js

@@ -24,15 +24,13 @@ function chartTvFinalize(ctx) {
         var chanMacdChart = ctx.chanMacdChart;
         var createChartOptions = ctx.createChartOptions;
         // 同步所有图表的时间轴配置
+        const hasPendingRestoreView = !!window._pendingRestoreView;
+        const pendingView = window._pendingRestoreView;
         const syncTimeScaleSettings = () => {
-            // 获取主图表的时间轴设置
-            const mainTimeScale = mainChart.timeScale();
             const baseOptions = {
                 timeVisible: true,
                 secondsVisible: false,
                 borderColor: '#ddd',
-                barSpacing: symbolConfig.type === 'a_stock' ? 6 : 10,
-                rightOffset: 12,
                 lockVisibleTimeRangeOnResize: true,
                 // 关键：确保所有图表边缘行为完全一致
                 fixLeftEdge: false,
@@ -41,6 +39,12 @@ function chartTvFinalize(ctx) {
                 ticksVisible: true,
                 minimumHeight: 0,
             };
+            // 有待恢复视图时不要先写 barSpacing/rightOffset（会钉右缘导致图往右偏），
+            // 交给后面 setVisibleRange 一次锁定位置+缩放。
+            if (!pendingView) {
+                baseOptions.barSpacing = symbolConfig.type === 'a_stock' ? 6 : 10;
+                baseOptions.rightOffset = 12;
+            }
             
             console.log('🔧 同步时间轴设置:', baseOptions);
             
@@ -59,8 +63,12 @@ function chartTvFinalize(ctx) {
         // 仅在没有待恢复视图时，设置默认可见范围
         const totalBars = candles ? candles.length : 0;
         const visibleBarsCount = 200;
-        const hasPendingRestoreView = !!window._pendingRestoreView;
-        if (!hasPendingRestoreView) {
+        const allChartsNow = [mainChart, volumeChart, atrChart]
+            .concat(showMacd && macdChart ? [macdChart] : [])
+            .concat(showMacd && chanMacdChart ? [chanMacdChart] : []);
+        if (hasPendingRestoreView && pendingView) {
+            restoreChartViewState(allChartsNow, pendingView, { preferTime: true });
+        } else {
             // 显示最近 200 根K线而非全部挤压（避免K线过多时重叠）
             if (totalBars > visibleBarsCount) {
                 const rangeFrom = totalBars - visibleBarsCount;
@@ -71,8 +79,12 @@ function chartTvFinalize(ctx) {
             }
         }
         
-        // 立即同步其他图表到主图表的范围
+        // 立即同步其他图表到主图表的范围（无 pending 时）
         setTimeout(() => {
+            if (window._pendingRestoreView) {
+                restoreChartViewState(allChartsNow, window._pendingRestoreView, { preferTime: true });
+                return;
+            }
             const logRange = mainChart.timeScale().getVisibleLogicalRange();
             if (logRange) {
                 console.log('🔧 同步可见范围:', logRange);
@@ -120,11 +132,10 @@ function chartTvFinalize(ctx) {
             }
             
             const defaultMAs = [
-                { type: 'EMA', length: 13, color: '#800080', name: 'EMA13', visible: true },   // 紫色
-                { type: 'EMA', length: 26, color: '#FF8C00', name: 'EMA26', visible: true },   // 橙色
-                { type: 'EMA', length: 52, color: '#000000', name: 'EMA52', visible: false },    // 黑色
-                { type: 'EMA', length: 104, color: '#1E90FF', name: 'EMA104', visible: false },   // 蓝色
-                { type: 'EMA', length: 156, color: '#F700FF', name: 'EMA156', visible: false }   // 粉色
+                { type: 'EMA', length: 26, color: '#FF8C00', name: 'EMA26', visible: false },  // 橙色
+                { type: 'EMA', length: 52, color: '#000000', name: 'EMA52', visible: true },   // 黑色 · 默认开
+                { type: 'SMA', length: 30, color: '#1E90FF', name: 'MA30', visible: true },    // 蓝色 · 默认开
+                { type: 'SMA', length: 250, color: '#800080', name: 'MA250', visible: true }   // 紫色 · 默认开
             ];
             
             defaultMAs.forEach(ma => {
@@ -191,9 +202,9 @@ function chartTvFinalize(ctx) {
             window._pendingRestoreView = null;
             
             if (pending) {
-                // 恢复刷新前的缩放和位置（优先可见范围/逻辑范围，最后回退到滚动位置）
+                // 恢复刷新前的缩放和位置（时间范围优先，避免数据滑动后逻辑索引错位）
                 console.log('📌 恢复图表视图:', JSON.stringify(pending));
-                restoreChartViewState(allCharts, pending);
+                restoreChartViewState(allCharts, pending, { preferTime: true });
             } else {
                 // 无保存视图，正常同步主图到子图
                 const visibleRange = mainChart.timeScale().getVisibleRange();

web/static/js/app/chart_view.js

@@ -1,4 +1,46 @@
 /* chart_view.js — split from chart.js */
+
+/** 用尾部 N 根合并进已有 K 线（同 timestamp 覆盖，更新则追加） */
+function mergeKlineTail(existing, incoming) {
+    if (!Array.isArray(incoming) || !incoming.length) {
+        return Array.isArray(existing) ? existing : [];
+    }
+    if (!Array.isArray(existing) || !existing.length) {
+        return incoming.slice();
+    }
+    const out = existing.slice();
+    const barTs = (row) => {
+        if (row && row.timestamp != null && row.timestamp !== '') {
+            const n = Number(row.timestamp);
+            if (!Number.isNaN(n)) return n;
+        }
+        const t = row && row.date != null ? new Date(row.date).getTime() : NaN;
+        return Number.isNaN(t) ? null : t;
+    };
+    for (let i = 0; i < incoming.length; i++) {
+        const row = incoming[i];
+        const ts = barTs(row);
+        if (ts == null) continue;
+        let idx = -1;
+        const scanFrom = Math.max(0, out.length - 8);
+        for (let j = out.length - 1; j >= scanFrom; j--) {
+            if (barTs(out[j]) === ts) {
+                idx = j;
+                break;
+            }
+        }
+        if (idx >= 0) {
+            out[idx] = Object.assign({}, out[idx], row);
+        } else {
+            const lastTs = barTs(out[out.length - 1]);
+            if (lastTs == null || ts > lastTs) {
+                out.push(row);
+            }
+        }
+    }
+    return out;
+}
+
 function updateChart(options) {
     options = options || {};
     // 只显示旋转加载图标
@@ -47,9 +89,79 @@ function updateChart(options) {
     if (options.fromAutoRefresh && window._analyzeXhr && window._analyzeXhr.readyState !== 4) {
         try { window._analyzeXhr.abort(); } catch (e) {}
     }
+
+    // 请求发出前冻结视窗（与自动刷新同一套；避免等响应时/setData 后 logical 索引漂移）
+    try {
+        if (tvWidget && tvWidget.mainChart) {
+            window._preserveViewOnRefresh = captureChartViewState(tvWidget.mainChart);
+            const prev = currentData && (
+                ($('#subSubPeriodKline').is(':checked') && currentData.sub_sub_kline_data) ||
+                ($('#elementPeriodKline').is(':checked') && currentData.element_kline_data) ||
+                currentData.kline_data
+            );
+            window._preserveViewBarCount = Array.isArray(prev) ? prev.length : 0;
+            console.log('📌 刷新前冻结视窗 bars=', window._preserveViewBarCount, window._preserveViewOnRefresh);
+        }
+    } catch (e) {
+        window._preserveViewOnRefresh = null;
+        window._preserveViewBarCount = 0;
+    }
+
+    const requestId = ++lastRequestId;
+    const chartsReady = !!(tvWidget && tvWidget.state && tvWidget.state.isInitialized && tvWidget.mainChart);
+    const hasBaseline = !!(currentData && Array.isArray(currentData.kline_data) && currentData.kline_data.length);
+    // 自动刷新常态：只拉最近 2 根；fullAnalyze（约每 1 分钟）走全量 analyze 更新缠论
+    const useRecentTail = !!(options.fromAutoRefresh && !options.fullAnalyze && chartsReady && hasBaseline);
+
+    if (useRecentTail) {
+        console.log('自动刷新 → /api/klines/recent limit=2');
+        window._analyzeXhr = $.ajax({
+            url: '/api/klines/recent',
+            data: {
+                symbol: symbol,
+                timeframe: timeframe,
+                limit: 2,
+                element_timeframe: elementTimeframe || undefined,
+                sub_sub_timeframe: subSubTimeframe || undefined
+            },
+            success: function(partial) {
+                $('#refreshLoadingSpinner').hide();
+                if (requestId !== lastRequestId) return;
+                if (!partial || !Array.isArray(partial.kline_data)) {
+                    console.warn('recent 响应无效，回退全量 analyze');
+                    updateChart({ incremental: true, reason: 'recent-fallback' });
+                    return;
+                }
+                currentData.kline_data = mergeKlineTail(currentData.kline_data, partial.kline_data);
+                if (Array.isArray(partial.element_kline_data)) {
+                    currentData.element_kline_data = mergeKlineTail(
+                        currentData.element_kline_data, partial.element_kline_data
+                    );
+                    if (partial.element_timeframe) {
+                        currentData.element_timeframe = partial.element_timeframe;
+                    }
+                }
+                if (Array.isArray(partial.sub_sub_kline_data)) {
+                    currentData.sub_sub_kline_data = mergeKlineTail(
+                        currentData.sub_sub_kline_data, partial.sub_sub_kline_data
+                    );
+                    if (partial.sub_sub_timeframe) {
+                        currentData.sub_sub_timeframe = partial.sub_sub_timeframe;
+                    }
+                }
+                refreshChart(currentData, { incremental: true, skipTables: true });
+            },
+            error: function(jqXHR, textStatus, errorThrown) {
+                $('#refreshLoadingSpinner').hide();
+                if (textStatus === 'abort') return;
+                console.warn('recent 失败，回退全量 analyze:', errorThrown);
+                updateChart({ incremental: true, reason: 'recent-error-fallback' });
+            }
+        });
+        return;
+    }
     
-    // 发送请求
-    const requestId = ++lastRequestId; // 标记本次请求
+    // 手动 / 首拉：全量 analyze
     window._analyzeXhr = $.ajax({
         url: '/api/analyze',
         data: {
@@ -81,15 +193,21 @@ function updateChart(options) {
                 delete currentData.original_macd;
             }
             currentData = data;
+            window._lastFullAnalyzeAt = Date.now();
             if (typeof renderWyckoffCycleSummary === 'function') {
                 renderWyckoffCycleSummary();
             }
             
-            refreshChart(data, {
-                incremental: options.incremental !== undefined
-                    ? !!options.incremental
-                    : !!options.fromAutoRefresh
-            });
+            // 有图则增量；笔/段/中枢/结构区只在全量 init 绘制，fullAnalyze 必须重建
+            const ready = !!(tvWidget && tvWidget.state && tvWidget.state.isInitialized && tvWidget.mainChart);
+            const structureZonesOn = $('#showMainStructureZone').is(':checked');
+            let wantIncremental = options.incremental !== undefined
+                ? !!options.incremental
+                : (ready || !!options.fromAutoRefresh);
+            if (structureZonesOn || options.fullAnalyze) {
+                wantIncremental = false;
+            }
+            refreshChart(data, { incremental: wantIncremental });
         },
         error: function(jqXHR, textStatus, errorThrown) {
             // 隐藏加载图标
@@ -121,24 +239,21 @@ function captureChartViewState(chart) {
 }
 
 function restoreChartViewState(charts, viewState) {
+    // 全量重建备用：先缩放，再位置；不要在位置前写 rightOffset（会右边缘锚定）
     if (!viewState || !Array.isArray(charts) || charts.length === 0) return;
     const validCharts = charts.filter(c => c && c.timeScale);
     if (validCharts.length === 0) return;
 
     validCharts.forEach(c => {
         try {
-            const optionsPatch = {};
-            if (typeof viewState.barSpacing === 'number') optionsPatch.barSpacing = viewState.barSpacing;
-            if (typeof viewState.rightOffset === 'number') optionsPatch.rightOffset = viewState.rightOffset;
-            if (Object.keys(optionsPatch).length) {
-                c.timeScale().applyOptions(optionsPatch);
+            if (typeof viewState.barSpacing === 'number') {
+                c.timeScale().applyOptions({ barSpacing: viewState.barSpacing });
             }
         } catch (e) {}
     });
 
     let restored = false;
 
-    // 优先按逻辑范围恢复（对新数据更稳健）
     if (viewState.logicalRange && viewState.logicalRange.from !== undefined && viewState.logicalRange.to !== undefined) {
         validCharts.forEach(c => {
             try {
@@ -148,7 +263,6 @@ function restoreChartViewState(charts, viewState) {
         });
     }
 
-    // 逻辑范围失败时，回退到时间可见范围
     if (!restored && viewState.visibleRange && viewState.visibleRange.from !== undefined && viewState.visibleRange.to !== undefined) {
         validCharts.forEach(c => {
             try {
@@ -158,7 +272,6 @@ function restoreChartViewState(charts, viewState) {
         });
     }
 
-    // 最后回退到滚动位置
     if (!restored && typeof viewState.scrollPosition === 'number') {
         validCharts.forEach(c => {
             try { c.timeScale().scrollToPosition(viewState.scrollPosition, false); } catch (e) {}

web/static/js/app/macd_ui.js

@@ -85,9 +85,9 @@ $(document).on('change', '#showMainBiZs', function() {
 $(document).on('change', '#showMainStructureZone', function() {
     const on = $('#showMainStructureZone').is(':checked');
     console.log('结构区切换为:', on);
-    // 勾选后才向服务器请求多周期结构区数据；取消勾选仅重绘，不重复拉取
+    // 勾选后才向服务器请求多周期结构区数据；结构区叠层只在全量 init 里绘制，必须 incremental:false
     if (on) {
-        updateChart();
+        updateChart({ incremental: false });
     } else {
         updateChartDisplay();
     }

web/static/js/app/ui.js

@@ -272,10 +272,10 @@ function loadSymbols() {
     });
 }
 
-// 设置默认时间范围（需覆盖威科夫 lookback；1 天在 4h/1h 上几乎检不出区间）
+// 设置默认时间范围：最近 1 个月
 function setDefaultTimeRange() {
     const now = new Date();
-    const daysBack = 14;
+    const daysBack = 30;
     const start = new Date(now.getTime() - (daysBack * 24 * 60 * 60 * 1000));
     
     // 格式化为datetime-local输入框所需的格式 YYYY-MM-DDThh:mm
@@ -493,6 +493,9 @@ $(document).ready(function() {
 let autoRefreshTimer = null;
 let nextRefreshTime = null;
 let autoRefreshTick = 0;
+/** 自动刷新时，缠论全量重算间隔（毫秒）；时间戳见 window._lastFullAnalyzeAt */
+const AUTO_FULL_ANALYZE_MS = 60 * 1000;
+
 // 初始化自动刷新功能
 function initAutoRefresh() {
     // 监听自动刷新勾选框变化
@@ -519,10 +522,10 @@ function startAutoRefresh() {
     stopAutoRefresh();
     
     // 获取刷新频率(分钟)
-    const interval = parseFloat($('#refreshInterval').val()) || 5;
+    const interval = parseFloat($('#refreshInterval').val()) || (5 / 60);
     const intervalMs = interval * 60 * 1000;
     
-    console.log(`开始自动刷新，频率: ${interval}分钟 (${intervalMs}毫秒)`);
+    console.log(`开始自动刷新，频率: ${interval}分钟 (${intervalMs}毫秒)；缠论全量每 ${AUTO_FULL_ANALYZE_MS / 1000}s`);
     
     // 计算下次刷新时间
     nextRefreshTime = new Date(Date.now() + intervalMs);
@@ -531,16 +534,36 @@ function startAutoRefresh() {
     // 启动定时器
     autoRefreshTick = 0;
     autoRefreshTimer = setInterval(function() {
-        // 更新结束时间为当前时间
+        // 刷新前先钉住当前缩放/位置（updateEndTime / 请求返回前都可能被改写）
+        if (tvWidget && tvWidget.mainChart && typeof captureChartViewState === 'function') {
+            try {
+                window._pendingRestoreView = captureChartViewState(tvWidget.mainChart);
+            } catch (e) {
+                window._pendingRestoreView = null;
+            }
+        }
+
+        // 更新结束时间显示（仅 UI）
         updateEndTimeToNow();
         
-        // 多数周期增量更新；每隔若干次全量重建以刷新笔/段/中枢（dispose 已防泄漏）
         autoRefreshTick += 1;
-        const fullRebuild = (autoRefreshTick % 6) === 0;
-        updateChart({
-            fromAutoRefresh: true,
-            incremental: !fullRebuild
-        });
+        const now = Date.now();
+        const lastFull = window._lastFullAnalyzeAt || 0;
+        const needFullAnalyze = !lastFull || (now - lastFull >= AUTO_FULL_ANALYZE_MS);
+        // 常态：/api/klines/recent 合并尾部 K；满 1 分钟：全量 /api/analyze 刷新缠论
+        if (needFullAnalyze) {
+            console.log('自动刷新 → 全量缠论 analyze（距上次', lastFull ? Math.round((now - lastFull) / 1000) + 's' : '首次', '）');
+            updateChart({
+                fromAutoRefresh: true,
+                fullAnalyze: true,
+                incremental: true
+            });
+        } else {
+            updateChart({
+                fromAutoRefresh: true,
+                incremental: true
+            });
+        }
         
         // 更新下次刷新时间
         nextRefreshTime = new Date(Date.now() + intervalMs);
@@ -784,7 +807,8 @@ function refreshChart(data, options) {
     // 自动刷新：增量更新，避免每次销毁/重建 Lightweight Charts
     if (preferIncremental && chartsReady) {
         try {
-            if (tvWidget.mainChart) {
+            // 若定时器已捕获则保留；否则此刻再捕获一次
+            if (!window._pendingRestoreView && tvWidget.mainChart) {
                 try {
                     window._pendingRestoreView = captureChartViewState(tvWidget.mainChart);
                 } catch (e) {
@@ -792,7 +816,10 @@ function refreshChart(data, options) {
                 }
             }
             updateTradingViewData();
-            updateTables(data);
+            // recent-tail 刷新结构未变，跳过表格重绘以提速
+            if (!options.skipTables) {
+                updateTables(data);
+            }
             if (currentData && currentData.ema52_dict) {
                 updateEMA52Display(currentData);
             }
@@ -804,7 +831,7 @@ function refreshChart(data, options) {
     
     // 保存当前缩放(barSpacing)和滚动位置(scrollPosition)到 window
     // tvWidget 会在 initTradingView 内被重建，所以必须存到 window 上
-    if (tvWidget && tvWidget.mainChart) {
+    if (!window._pendingRestoreView && tvWidget && tvWidget.mainChart) {
         try {
             window._pendingRestoreView = captureChartViewState(tvWidget.mainChart);
             console.log('📌 保存图表视图:', JSON.stringify(window._pendingRestoreView));
@@ -812,6 +839,8 @@ function refreshChart(data, options) {
             console.warn('保存图表视图失败:', e);
             window._pendingRestoreView = null;
         }
+    } else if (window._pendingRestoreView) {
+        console.log('📌 使用已保存图表视图:', JSON.stringify(window._pendingRestoreView));
     }
     
     initTradingView($('#symbol').val(), $('#timeframe').val());