From a2bea0240afb56f893499ff942cd8fa7d55d305c Mon Sep 17 00:00:00 2001
From: shy3130 <shy3130@users.noreply.github.com>
Date: Sun, 2 Aug 2026 10:56:24 +0800
Subject: [PATCH] =?UTF-8?q?fix(ui):=20=E4=BF=AE=E5=A4=8D=E6=89=80=E6=9C=89?=
 =?UTF-8?q?=E5=BC=B9=E7=AA=97=E6=8B=96=E6=8B=BD=E7=A9=BF=E9=80=8F=E5=AF=BC?=
 =?UTF-8?q?=E8=87=B4=E8=AF=AF=E5=85=B3=E9=97=AD=E7=9A=84=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

问题: 用户在弹窗内容内拖选文本时, 鼠标移到遮罩松开会触发遮罩 click, 导致弹窗意外关闭(click 派发给 mousedown/mouseup 共同祖先)。

方案: 抽取共享 hook useDialogBackdrop, 用 mousedown 跟踪——只有按下和松开都在遮罩上才关闭。Modal.tsx 内置同样逻辑。所有手写遮罩弹窗统一接入。
---
 .../src/components/EndpointTestDialog.tsx     |  4 +-
 .../src/components/ListColumnCustomizer.tsx   |  4 +-
 frontend/src/components/Modal.tsx             | 13 +++++-
 .../src/components/StockPreviewDialog.tsx     |  4 +-
 frontend/src/components/analysis-shared.tsx   |  4 +-
 frontend/src/components/data/SchemaModal.tsx  |  4 +-
 .../src/components/data/SettingsModal.tsx     |  4 +-
 .../components/ext-data/CreateExtDialog.tsx   |  4 +-
 .../src/components/ext-data/EditExtDialog.tsx |  4 +-
 .../financials/AiAnalysisDialog.tsx           |  5 ++-
 .../components/signals/CustomSignalDialog.tsx |  7 +++-
 .../stock-analysis/PriceAlertDialog.tsx       |  4 +-
 .../stock-analysis/StockAnalysisDialog.tsx    |  5 ++-
 frontend/src/lib/useDialogBackdrop.ts         | 40 +++++++++++++++++++
 frontend/src/pages/LimitUpLadder.tsx          |  7 +++-
 frontend/src/pages/Monitor.tsx                |  4 +-
 .../backtest/components/TradeKlineModal.tsx   |  4 +-
 17 files changed, 103 insertions(+), 18 deletions(-)
 create mode 100644 frontend/src/lib/useDialogBackdrop.ts

diff --git a/frontend/src/components/EndpointTestDialog.tsx b/frontend/src/components/EndpointTestDialog.tsx
index 86bca85..ca669d1 100644
--- a/frontend/src/components/EndpointTestDialog.tsx
+++ b/frontend/src/components/EndpointTestDialog.tsx
@@ -5,6 +5,7 @@ import { Wifi, Play, Loader2, X, Check, Crown } from 'lucide-react'
 import { api, type EndpointItem } from '@/lib/api'
 import { QK } from '@/lib/queryKeys'
 import { EXPERT_RANK, tierRank } from '@/lib/capability-labels'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 interface EpResult {
   ok: boolean
@@ -18,6 +19,7 @@ interface EpResult {
 
 export function EndpointTestDialog({ hasKey, tierLabel, currentEndpoint, onClose }: { hasKey: boolean; tierLabel: string; currentEndpoint: string; onClose: () => void }) {
   const qc = useQueryClient()
+  const backdrop = useDialogBackdrop(onClose)
   const [results, setResults] = useState<Record<string, EpResult | null>>({})
   const [testing, setTesting] = useState<Record<string, boolean>>({})
   const [switching, setSwitching] = useState<string | null>(null)
@@ -78,7 +80,7 @@ export function EndpointTestDialog({ hasKey, tierLabel, currentEndpoint, onClose
           animate={{ opacity: 1 }}
           exit={{ opacity: 0 }}
           className="absolute inset-0 bg-black/60 backdrop-blur-sm"
-          onClick={onClose}
+          {...backdrop}
         />
         <motion.div
           initial={{ opacity: 0, scale: 0.95, y: 12 }}
diff --git a/frontend/src/components/ListColumnCustomizer.tsx b/frontend/src/components/ListColumnCustomizer.tsx
index 4481b88..94b9354 100644
--- a/frontend/src/components/ListColumnCustomizer.tsx
+++ b/frontend/src/components/ListColumnCustomizer.tsx
@@ -23,6 +23,7 @@ import { useQuery } from '@tanstack/react-query'
 import { QK } from '@/lib/queryKeys'
 import type { ColumnConfig, ColumnGroup, ExtColumnDisplayConfig, CandleColumnConfig, IntradayColumnConfig } from '@/lib/list-columns'
 import { resolveCandleConfig, resolveIntradayConfig } from '@/lib/list-columns'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 interface ListColumnCustomizerProps {
   columns: ColumnConfig[]
@@ -142,6 +143,7 @@ export function ListColumnCustomizer({
     enabled: open && showExtColumns,
     staleTime: 60_000,
   })
+  const backdrop = useDialogBackdrop(onClose)
 
   const [searchQuery, setSearchQuery] = useState('')
   const [expandedGroups, setExpandedGroups] = useState<Set<string>>(new Set())
@@ -661,7 +663,7 @@ export function ListColumnCustomizer({
             initial={{ opacity: 0 }} animate={{ opacity: 1 }} exit={{ opacity: 0 }}
             transition={{ duration: 0.15 }}
             className="absolute inset-0 bg-black/50 backdrop-blur-sm"
-            onClick={onClose}
+            {...backdrop}
           />
           <motion.div
             initial={{ x: '100%' }} animate={{ x: 0 }} exit={{ x: '100%' }}
diff --git a/frontend/src/components/Modal.tsx b/frontend/src/components/Modal.tsx
index 7ca8332..16ed3a7 100644
--- a/frontend/src/components/Modal.tsx
+++ b/frontend/src/components/Modal.tsx
@@ -48,6 +48,10 @@ export function Modal({
   closeOnBackdrop = true,
 }: ModalProps) {
   const panelRef = useRef<HTMLDivElement>(null)
+  // 记录鼠标按下时是否落在遮罩(而非面板)上。
+  // 仅当 mousedown 和 mouseup 都在遮罩时才视为"点击遮罩关闭",
+  // 避免在面板内拖选文本时鼠标移出面板边缘导致误关 (拖拽穿透)。
+  const mouseDownOnBackdrop = useRef(false)
   // onClose 存 ref: 焦点陷阱/ESC effect 只在挂载时装一次。否则父级每次重渲染 (或未 memo 的
   // onClose) 都让 effect 重跑, requestAnimationFrame(focusFirst) 会在每次输入后把焦点抢回
   // 面板首个元素, 导致对话框内文本框无法输入。
@@ -118,7 +122,14 @@ export function Modal({
   return (
     <div
       className={overlayClassName}
-      onClick={closeOnBackdrop ? (e) => { if (e.target === e.currentTarget) onClose() } : undefined}
+      onMouseDown={(e) => {
+        // 仅记录"按下时确实在遮罩上"; 在面板内按下时记 false。
+        mouseDownOnBackdrop.current = e.target === e.currentTarget
+      }}
+      onClick={closeOnBackdrop ? (e) => {
+        // 只有按下和松开都在遮罩上才关闭, 避免拖选文本误关。
+        if (mouseDownOnBackdrop.current && e.target === e.currentTarget) onClose()
+      } : undefined}
     >
       <div
         ref={panelRef}
diff --git a/frontend/src/components/StockPreviewDialog.tsx b/frontend/src/components/StockPreviewDialog.tsx
index b76598b..f49a3ab 100644
--- a/frontend/src/components/StockPreviewDialog.tsx
+++ b/frontend/src/components/StockPreviewDialog.tsx
@@ -10,6 +10,7 @@ import { DatePicker } from '@/components/DatePicker'
 import { RuleEditor } from '@/components/monitor/RuleEditor'
 import { usePreferences, useQuoteStatus } from '@/lib/useSharedQueries'
 import { setFocusSymbol, clearFocusSymbol } from '@/lib/useQuoteStream'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 interface Props {
   symbol: string | null
@@ -45,6 +46,7 @@ export function StockPreviewDialog({ symbol, name, onClose, triggerInfo }: Props
   const [dateRange, setDateRange] = useState(getDefaultRange)
   const [showMonitorEditor, setShowMonitorEditor] = useState(false)
   const qc = useQueryClient()
+  const backdrop = useDialogBackdrop(onClose)
 
   const watchlist = useQuery({
     queryKey: QK.watchlist,
@@ -109,7 +111,7 @@ export function StockPreviewDialog({ symbol, name, onClose, triggerInfo }: Props
             exit={{ opacity: 0 }}
             transition={{ duration: 0.15 }}
             className="absolute inset-0 bg-black/60 backdrop-blur-sm"
-            onClick={onClose}
+            {...backdrop}
           />
 
           {/* 弹窗主体 */}
diff --git a/frontend/src/components/analysis-shared.tsx b/frontend/src/components/analysis-shared.tsx
index 6680f2b..94507fe 100644
--- a/frontend/src/components/analysis-shared.tsx
+++ b/frontend/src/components/analysis-shared.tsx
@@ -30,6 +30,7 @@ import { cn } from '@/lib/cn'
 import type { DimensionGroup, QuoteMap } from '@/lib/analysis-adapter'
 import { computeQuoteMetrics } from '@/lib/analysis-adapter'
 import { fmtPct, priceColorClass } from '@/lib/format'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 // ===== 配置类型 =====
 
@@ -62,6 +63,7 @@ export function AnalysisConfigDialog({
   showHierarchyLevel?: boolean
 }) {
   const [draft, setDraft] = useState<AnalysisFieldConfig>(currentConfig)
+  const backdrop = useDialogBackdrop(onClose)
   const { data: extList } = useQuery({
     queryKey: QK.extData,
     queryFn: api.extDataList,
@@ -84,7 +86,7 @@ export function AnalysisConfigDialog({
   )
 
   return (
-    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/50" onClick={onClose}>
+    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/50" {...backdrop}>
       <motion.div
         initial={{ opacity: 0, scale: 0.95 }}
         animate={{ opacity: 1, scale: 1 }}
diff --git a/frontend/src/components/data/SchemaModal.tsx b/frontend/src/components/data/SchemaModal.tsx
index 8f9d05e..b700955 100644
--- a/frontend/src/components/data/SchemaModal.tsx
+++ b/frontend/src/components/data/SchemaModal.tsx
@@ -2,6 +2,7 @@ import { AnimatePresence, motion } from 'framer-motion'
 import { useQuery } from '@tanstack/react-query'
 import { api, type EnrichedField } from '@/lib/api'
 import { QK } from '@/lib/queryKeys'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 const TABLE_TITLES: Record<string, string> = {
   instruments: '个股维表',
@@ -35,6 +36,7 @@ function categorize(name: string): string {
 
 export function EnrichedSchemaModal({ table, onClose }: { table: string | null; onClose: () => void }) {
   const open = !!table
+  const backdrop = useDialogBackdrop(onClose)
   const schema = useQuery({
     queryKey: QK.tableSchema(table!),
     queryFn: () => api.enrichedSchema(table!),
@@ -63,7 +65,7 @@ export function EnrichedSchemaModal({ table, onClose }: { table: string | null;
           exit={{ opacity: 0 }}
           transition={{ duration: 0.15 }}
         >
-          <div className="absolute inset-0 bg-black/40" onClick={onClose} />
+          <div className="absolute inset-0 bg-black/40" {...backdrop} />
           <motion.div
             className="relative w-full max-w-xl max-h-[70vh] rounded-card border border-border bg-surface shadow-xl overflow-hidden mx-4"
             initial={{ opacity: 0, scale: 0.95, y: 8 }}
diff --git a/frontend/src/components/data/SettingsModal.tsx b/frontend/src/components/data/SettingsModal.tsx
index 5054ef0..d3a11fb 100644
--- a/frontend/src/components/data/SettingsModal.tsx
+++ b/frontend/src/components/data/SettingsModal.tsx
@@ -1,10 +1,12 @@
 import { motion } from 'framer-motion'
 import { X } from 'lucide-react'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 export function SettingsModal({ title, onClose, children }: { title: string; onClose: () => void; children: React.ReactNode }) {
+  const backdrop = useDialogBackdrop(onClose)
   return (
     <div className="fixed inset-0 z-50 flex items-center justify-center">
-      <div className="absolute inset-0 bg-black/60 backdrop-blur-sm" onClick={onClose} />
+      <div className="absolute inset-0 bg-black/60 backdrop-blur-sm" {...backdrop} />
       <motion.div
         initial={{ opacity: 0, scale: 0.95, y: 12 }}
         animate={{ opacity: 1, scale: 1, y: 0 }}
diff --git a/frontend/src/components/ext-data/CreateExtDialog.tsx b/frontend/src/components/ext-data/CreateExtDialog.tsx
index 5947436..a82a2d1 100644
--- a/frontend/src/components/ext-data/CreateExtDialog.tsx
+++ b/frontend/src/components/ext-data/CreateExtDialog.tsx
@@ -16,6 +16,7 @@ import {
 } from 'lucide-react'
 import { api, type ExtDataDetectUrlResult, type ExtDataField } from '@/lib/api'
 import { QK } from '@/lib/queryKeys'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 type SourceMode = 'url' | 'file' | 'manual'
 
@@ -26,6 +27,7 @@ type MappingChoice = {
 
 export function CreateExtDialog({ onClose }: { onClose: () => void }) {
   const qc = useQueryClient()
+  const backdrop = useDialogBackdrop(onClose)
   const [sourceMode, setSourceMode] = useState<SourceMode>('url')
   const [id, setId] = useState('')
   const [label, setLabel] = useState('')
@@ -308,7 +310,7 @@ export function CreateExtDialog({ onClose }: { onClose: () => void }) {
 
   return (
     <div className="fixed inset-0 z-50 flex items-center justify-center">
-      <div className="absolute inset-0 bg-black/60 backdrop-blur-sm" onClick={onClose} />
+      <div className="absolute inset-0 bg-black/60 backdrop-blur-sm" {...backdrop} />
       <motion.div
         initial={{ opacity: 0, scale: 0.95, y: 12 }}
         animate={{ opacity: 1, scale: 1, y: 0 }}
diff --git a/frontend/src/components/ext-data/EditExtDialog.tsx b/frontend/src/components/ext-data/EditExtDialog.tsx
index acae389..abe8080 100644
--- a/frontend/src/components/ext-data/EditExtDialog.tsx
+++ b/frontend/src/components/ext-data/EditExtDialog.tsx
@@ -4,9 +4,11 @@ import { motion } from 'framer-motion'
 import { X, Loader2, Upload } from 'lucide-react'
 import { api, type ExtDataConfig, type ExtDataField } from '@/lib/api'
 import { QK } from '@/lib/queryKeys'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 export function EditExtDialog({ config, onClose }: { config: ExtDataConfig; onClose: () => void }) {
   const qc = useQueryClient()
+  const backdrop = useDialogBackdrop(onClose)
   const [label, setLabel] = useState(config.label)
   const [description, setDescription] = useState(config.description ?? '')
   const [fields, setFields] = useState<ExtDataField[]>([...config.fields])
@@ -79,7 +81,7 @@ export function EditExtDialog({ config, onClose }: { config: ExtDataConfig; onCl
 
   return (
     <div className="fixed inset-0 z-50 flex items-center justify-center">
-      <div className="absolute inset-0 bg-black/60 backdrop-blur-sm" onClick={onClose} />
+      <div className="absolute inset-0 bg-black/60 backdrop-blur-sm" {...backdrop} />
       <motion.div
         initial={{ opacity: 0, scale: 0.95, y: 12 }}
         animate={{ opacity: 1, scale: 1, y: 0 }}
diff --git a/frontend/src/components/financials/AiAnalysisDialog.tsx b/frontend/src/components/financials/AiAnalysisDialog.tsx
index b85b9dd..c52c8cc 100644
--- a/frontend/src/components/financials/AiAnalysisDialog.tsx
+++ b/frontend/src/components/financials/AiAnalysisDialog.tsx
@@ -12,6 +12,7 @@ import {
   type ActiveTask, type HistoryReport,
   minimizeDialog, closeDialog, startAnalysis,
 } from '@/lib/aiReportStore'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 interface Props {
   /** 当前展示的任务;活跃任务或历史报告 */
@@ -81,6 +82,8 @@ export function AiAnalysisDialog({ task, mode, minimized }: Props) {
     setTimeout(() => setCopied(false), 2000)
   }
 
+  const backdrop = useDialogBackdrop(closeDialog, () => !isWorking)
+
   if (!open) return null
 
   const error = task && 'error' in task ? task.error : ''
@@ -90,7 +93,7 @@ export function AiAnalysisDialog({ task, mode, minimized }: Props) {
       <motion.div
         initial={{ opacity: 0 }} animate={{ opacity: 1 }} exit={{ opacity: 0 }}
         className="fixed inset-0 z-50 flex items-center justify-center bg-black/50 backdrop-blur-sm p-4"
-        onClick={e => { if (e.target === e.currentTarget && !isWorking) closeDialog() }}
+        {...backdrop}
       >
         <motion.div
           initial={{ opacity: 0, scale: 0.96, y: 12 }} animate={{ opacity: 1, scale: 1, y: 0 }} exit={{ opacity: 0, scale: 0.96, y: 12 }}
diff --git a/frontend/src/components/signals/CustomSignalDialog.tsx b/frontend/src/components/signals/CustomSignalDialog.tsx
index 8285a7e..adfffe5 100644
--- a/frontend/src/components/signals/CustomSignalDialog.tsx
+++ b/frontend/src/components/signals/CustomSignalDialog.tsx
@@ -5,6 +5,7 @@ import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query'
 import { ArrowRight, Plus, Save, Search, X } from 'lucide-react'
 import { api, type CustomSignal, type CustomSignalCondition, type CustomSignalFieldGroup } from '@/lib/api'
 import { QK } from '@/lib/queryKeys'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 interface Props {
   open: boolean
@@ -21,6 +22,7 @@ const emptySignal = (kind: CustomSignal['kind'] = 'exit'): CustomSignal => ({
 
 export function CustomSignalDialog({ open, signal, defaultKind = 'exit', onClose, onSaved }: Props) {
   const qc = useQueryClient()
+  const backdrop = useDialogBackdrop(onClose)
   const options = useQuery({ queryKey: QK.customSignalsOptions, queryFn: api.customSignalsOptions, enabled: open })
 
   const [draft, setDraft] = useState<CustomSignal>(() => emptySignal(defaultKind))
@@ -71,7 +73,7 @@ export function CustomSignalDialog({ open, signal, defaultKind = 'exit', onClose
           animate={{ opacity: 1 }}
           exit={{ opacity: 0 }}
           className="fixed inset-0 z-[70] flex items-center justify-center bg-black/40 backdrop-blur-sm p-4"
-          onClick={onClose}
+          {...backdrop}
         >
           <motion.div
             role="dialog"
@@ -184,6 +186,7 @@ function FieldPicker({ value, fields, groups, onChange }: {
 }) {
   const [open, setOpen] = useState(false)
   const [query, setQuery] = useState('')
+  const backdrop = useDialogBackdrop(() => setOpen(false))
   const selectedLabel = fields.find(f => f.key === value)?.label ?? value
 
   const filteredGroups = useMemo(() => {
@@ -217,7 +220,7 @@ function FieldPicker({ value, fields, groups, onChange }: {
               animate={{ opacity: 1 }}
               exit={{ opacity: 0 }}
               className="fixed inset-0 z-[9999] flex items-center justify-center bg-black/50 backdrop-blur-sm p-4"
-              onClick={() => setOpen(false)}
+              {...backdrop}
             >
               <motion.div
                 initial={{ opacity: 0, scale: 0.95, y: 10 }}
diff --git a/frontend/src/components/stock-analysis/PriceAlertDialog.tsx b/frontend/src/components/stock-analysis/PriceAlertDialog.tsx
index a315b3c..7e3976c 100644
--- a/frontend/src/components/stock-analysis/PriceAlertDialog.tsx
+++ b/frontend/src/components/stock-analysis/PriceAlertDialog.tsx
@@ -7,6 +7,7 @@ import { LEVEL_GROUPS } from './AnalysisKChart'
 import { api, genRuleId, type MonitorRule, type PriceLevel } from '@/lib/api'
 import { QK } from '@/lib/queryKeys'
 import { usePreferences } from '@/lib/useSharedQueries'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 interface Props {
   symbol: string
@@ -37,6 +38,7 @@ function levelGroupLabel(level: PriceLevel) {
 
 export function PriceAlertDialog({ symbol, name, onClose }: Props) {
   const qc = useQueryClient()
+  const backdrop = useDialogBackdrop(onClose)
   const { data: prefs } = usePreferences()
   const levelsQuery = useQuery({
     queryKey: QK.stockLevels(symbol),
@@ -189,7 +191,7 @@ export function PriceAlertDialog({ symbol, name, onClose }: Props) {
   }
 
   return (
-    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/55 p-3 backdrop-blur-sm sm:p-4" onClick={onClose}>
+    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/55 p-3 backdrop-blur-sm sm:p-4" {...backdrop}>
       <div role="dialog" aria-modal="true" aria-labelledby="price-alert-title" className="flex max-h-[88vh] w-full max-w-2xl flex-col overflow-hidden rounded-lg border border-border bg-surface shadow-2xl" onClick={event => event.stopPropagation()}>
         <header className="flex items-center gap-3 border-b border-border/60 px-5 py-3.5">
           <span className="grid h-8 w-8 shrink-0 place-items-center rounded-md border border-sky-400/25 bg-sky-400/10 text-sky-400">
diff --git a/frontend/src/components/stock-analysis/StockAnalysisDialog.tsx b/frontend/src/components/stock-analysis/StockAnalysisDialog.tsx
index e7c5e3a..f4d37a6 100644
--- a/frontend/src/components/stock-analysis/StockAnalysisDialog.tsx
+++ b/frontend/src/components/stock-analysis/StockAnalysisDialog.tsx
@@ -12,6 +12,7 @@ import {
   type ActiveTask, type HistoryReport,
   minimizeDialog, closeDialog, startAnalysis,
 } from '@/lib/stockAnalysisStore'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 /**
  * AI 个股分析对话框 —— 蓝色主题,与财务分析对话框区分。
@@ -80,6 +81,8 @@ export function StockAnalysisDialog({ task, mode, minimized }: Props) {
     setTimeout(() => setCopied(false), 2000)
   }
 
+  const backdrop = useDialogBackdrop(closeDialog, () => !isWorking)
+
   if (!open) return null
 
   const error = task && 'error' in task ? task.error : ''
@@ -89,7 +92,7 @@ export function StockAnalysisDialog({ task, mode, minimized }: Props) {
       <motion.div
         initial={{ opacity: 0 }} animate={{ opacity: 1 }} exit={{ opacity: 0 }}
         className="fixed inset-0 z-50 flex items-center justify-center bg-black/50 backdrop-blur-sm p-4"
-        onClick={e => { if (e.target === e.currentTarget && !isWorking) closeDialog() }}
+        {...backdrop}
       >
         <motion.div
           initial={{ opacity: 0, scale: 0.96, y: 12 }} animate={{ opacity: 1, scale: 1, y: 0 }} exit={{ opacity: 0, scale: 0.96, y: 12 }}
diff --git a/frontend/src/lib/useDialogBackdrop.ts b/frontend/src/lib/useDialogBackdrop.ts
new file mode 100644
index 0000000..6e53a36
--- /dev/null
+++ b/frontend/src/lib/useDialogBackdrop.ts
@@ -0,0 +1,40 @@
+import { useRef, useCallback } from 'react'
+
+/**
+ * 对话框遮罩"点击外部关闭"的共享逻辑, 防止拖拽穿透。
+
+ * 问题: 用户在对话框内容内按下鼠标拖选文本, 鼠标移到遮罩上松开时,
+ * 浏览器仍会触发遮罩的 click 事件 (click 派发给 mousedown/mouseup 的共同祖先),
+ * 导致对话框意外关闭。
+
+ * 解法: 记录 mousedown 时是否落在遮罩本身上; 仅当 mousedown 和 mouseup(click)
+ * 都发生在遮罩上时才触发关闭。
+
+ * 用法:
+ *   const backdrop = useDialogBackdrop(onClose)
+ *   <div className="fixed inset-0 ..." {...backdrop}>
+ *     <div onClick={e => e.stopPropagation()}>内容</div>
+ *   </div>
+ *
+ * 对于有额外条件(如 isWorking 时禁止关闭)的场景, 传 enabled 回调:
+ *   const backdrop = useDialogBackdrop(onClose, () => !isWorking)
+ */
+export function useDialogBackdrop(
+  onClose: () => void,
+  enabled?: () => boolean,
+) {
+  const mouseDownOnBackdrop = useRef(false)
+
+  const onMouseDown = useCallback((e: React.MouseEvent) => {
+    mouseDownOnBackdrop.current = e.target === e.currentTarget
+  }, [])
+
+  const onClick = useCallback((e: React.MouseEvent) => {
+    if (enabled && !enabled()) return
+    if (mouseDownOnBackdrop.current && e.target === e.currentTarget) {
+      onClose()
+    }
+  }, [onClose, enabled])
+
+  return { onMouseDown, onClick }
+}
diff --git a/frontend/src/pages/LimitUpLadder.tsx b/frontend/src/pages/LimitUpLadder.tsx
index 6af2088..c9b7f3a 100644
--- a/frontend/src/pages/LimitUpLadder.tsx
+++ b/frontend/src/pages/LimitUpLadder.tsx
@@ -14,6 +14,7 @@ import { EmptyState } from '@/components/EmptyState'
 import { useTheme } from '@/lib/theme'
 import { useCapabilities, usePreferences } from '@/lib/useSharedQueries'
 import { SealedBadge } from '@/components/SealedBadge'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 import type { ExtColumnDisplayConfig } from '@/lib/watchlist-columns'
 
 // ===== Ext 字段配置 =====
@@ -407,6 +408,7 @@ function MonitorMenu({ stock, direction, sealMode, monitorRule, anchorRect, hasD
   // 推送渠道默认值: 取偏好设置中的全局默认 (已有规则沿用其值)
   const { data: prefs } = usePreferences()
   const webhookDefaultChannels = prefs?.webhook_default_channels ?? []
+  const backdrop = useDialogBackdrop(onClose)
 
   // 单位倍率: 输入值 × 倍率 = 原始单位 (量=手, 额=元)
   const VOL_UNITS = [
@@ -507,7 +509,7 @@ function MonitorMenu({ stock, direction, sealMode, monitorRule, anchorRect, hasD
 
   return (
     <>
-      <div className="fixed inset-0 z-40" onClick={onClose} />
+      <div className="fixed inset-0 z-40" {...backdrop} />
       <div
         className="fixed z-50 w-60 rounded-lg bg-surface border border-border shadow-xl text-xs overflow-hidden"
         style={{ left, top }}
@@ -1357,6 +1359,7 @@ function ExtConfigDialog({ fields, onSave, onClose }: {
   onClose: () => void
 }) {
   const [draft, setDraft] = useState(fields)
+  const backdrop = useDialogBackdrop(onClose)
   const { data: schemaData } = useQuery({
     queryKey: QK.extDataSchemaAll,
     queryFn: api.extDataSchemaAll,
@@ -1377,7 +1380,7 @@ function ExtConfigDialog({ fields, onSave, onClose }: {
   }, [schemaData])
 
   return (
-    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/50" onClick={onClose}>
+    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/50" {...backdrop}>
       <motion.div
         initial={{ opacity: 0, scale: 0.95 }}
         animate={{ opacity: 1, scale: 1 }}
diff --git a/frontend/src/pages/Monitor.tsx b/frontend/src/pages/Monitor.tsx
index 36a2573..572bc5c 100644
--- a/frontend/src/pages/Monitor.tsx
+++ b/frontend/src/pages/Monitor.tsx
@@ -8,6 +8,7 @@ import { Skeleton } from '@/components/data/Skeleton'
 import { api, type MonitorRule, type AlertEvent, type MonitorCondition, type MonitorExtFieldItem } from '@/lib/api'
 import { QK } from '@/lib/queryKeys'
 import { fmtPrice, fmtPct } from '@/lib/format'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 import { cn } from '@/lib/cn'
 import { cnSignal } from '@/lib/signals'
 import { LEGACY_STRATEGY_NOTIFY_EVENTS, STRATEGY_NOTIFY_EVENT_OPTIONS, strategyEventMeta, strategyName } from '@/lib/strategyMonitorEvents'
@@ -782,6 +783,7 @@ function RulesList({ rulesQuery, onEdit }: {
 
 // ── 规则编辑对话框 ────────────────────────────────────
 function RuleEditorDialog({ open, rule, onClose }: { open: boolean; rule: MonitorRule | null; onClose: () => void }) {
+  const backdrop = useDialogBackdrop(onClose)
   return (
     <AnimatePresence>
       {open && (
@@ -790,7 +792,7 @@ function RuleEditorDialog({ open, rule, onClose }: { open: boolean; rule: Monito
           animate={{ opacity: 1 }}
           exit={{ opacity: 0 }}
           className="fixed inset-0 z-50 flex items-start justify-center overflow-auto bg-black/40 backdrop-blur-sm p-4"
-          onClick={onClose}
+          {...backdrop}
         >
           <motion.div
             initial={{ opacity: 0, scale: 0.96, y: 8 }}
diff --git a/frontend/src/pages/backtest/components/TradeKlineModal.tsx b/frontend/src/pages/backtest/components/TradeKlineModal.tsx
index 6f964ff..660214b 100644
--- a/frontend/src/pages/backtest/components/TradeKlineModal.tsx
+++ b/frontend/src/pages/backtest/components/TradeKlineModal.tsx
@@ -5,6 +5,7 @@ import { StockPanel } from '@/components/StockPanel'
 import type { ChartPriceLine, ChartRange } from '@/components/EChartsCandlestick'
 import type { StrategyBacktestTrade } from '@/lib/api'
 import { fmtPct, fmtPrice, priceColorClass } from '@/lib/format'
+import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 
 interface Props {
   trade: StrategyBacktestTrade | null
@@ -34,6 +35,7 @@ function fmtSignedMoney(v: number | null | undefined): string {
 
 export function TradeKlineModal({ trade, onClose }: Props) {
   const [showIntraday, setShowIntraday] = useState(false)
+  const backdrop = useDialogBackdrop(onClose)
 
   useEffect(() => {
     if (!trade) return
@@ -98,7 +100,7 @@ export function TradeKlineModal({ trade, onClose }: Props) {
             exit={{ opacity: 0 }}
             transition={{ duration: 0.15 }}
             className="absolute inset-0 bg-black/60 backdrop-blur-sm"
-            onClick={onClose}
+            {...backdrop}
           />
           <motion.div
             initial={{ opacity: 0, scale: 0.95, y: 12 }}