style: prettier format useTimelineMenus

- Extract context menu + add clip picker logic into useTimelineMenus hook
- Extract trim drag logic into useTrimDrag hook
- Extract clip reorder drag logic into useClipDrag hook
- TimelinePanel: 597 → 317 lines (-47%)
- Add new hooks to smoke test

apps/web/src/pages/editing-planner/components/TimelinePanel.tsx

@@ -8,21 +8,13 @@
  * - 拖动时实时显示裁剪预览（入点/出点/时长）
  * - 右键片段弹出菜单：分割 / 恢复原始长度 / 删除
  */
-import React, { useState, useRef, useCallback, useEffect, useLayoutEffect, useMemo } from "react"
+import React, { useState, useRef, useCallback, useEffect } from "react"
 import type { ClipData, ClipType, TrimConfig } from "../types"
-import {
-  DEFAULT_PIXELS_PER_SECOND,
-  MIN_PIXELS_PER_SECOND,
-  MAX_PIXELS_PER_SECOND,
-  ZOOM_STEP,
-  MIN_TRIM_DURATION,
-  DEFAULT_ADD_DURATION,
-  MIN_ADD_DURATION,
-  MAX_ADD_DURATION,
-  TRACK_GAP,
-  ADD_PICKER_WIDTH,
-} from "../constants/timeline"
+import { DEFAULT_PIXELS_PER_SECOND } from "../constants/timeline"
 import { formatTime } from "../utils/timeline"
+import { useClipDrag } from "../hooks/useClipDrag"
+import { useTrimDrag } from "../hooks/useTrimDrag"
+import { useTimelineMenus } from "../hooks/useTimelineMenus"
 import { ClipCard } from "./timeline/ClipCard"
 import { TimeRuler } from "./timeline/TimeRuler"
 import { AddClipPicker } from "./timeline/AddClipPicker"
@@ -55,25 +47,6 @@ interface TimelinePanelProps {
   totalDuration?: number
 }
 
-/** 裁剪拖拽方向 */
-type TrimDirection = "left" | "right"
-
-/** 裁剪拖拽状态 */
-interface TrimDragState {
-  clipId: string
-  direction: TrimDirection
-  startX: number
-  originalTrim: TrimConfig
-  originalDuration: number
-}
-
-/** 右键菜单状态 */
-interface ContextMenuState {
-  x: number
-  y: number
-  clipId: string
-}
-
 const TimelinePanel: React.FC<TimelinePanelProps> = ({
   clips,
   selectedClipId,
@@ -91,143 +64,51 @@ const TimelinePanel: React.FC<TimelinePanelProps> = ({
   onSeek,
   totalDuration: totalDurationProp,
 }) => {
-  const [dragIdx, setDragIdx] = useState<number | null>(null)
-  const [dragOverIdx, setDragOverIdx] = useState<number | null>(null)
-  const dragRef = useRef<number | null>(null)
-  const [showAddPicker, setShowAddPicker] = useState(false)
-  const pickerRef = useRef<HTMLDivElement>(null)
-  const addCardRef = useRef<HTMLDivElement>(null)
-  const [pickerPos, setPickerPos] = useState<{ top: number; right: number }>({
-    top: 0,
-    right: 0,
-  })
+  /* ── 缩放 & 时长 ── */
+  const pps = pixelsPerSecond ?? DEFAULT_PIXELS_PER_SECOND
+  const totalDuration = totalDurationProp ?? clips.reduce((s, c) => s + c.duration, 0)
 
-  /* ── 裁剪拖拽状态 ── */
-  const [trimDrag, setTrimDrag] = useState<TrimDragState | null>(null)
-  const [trimPreview, setTrimPreview] = useState<{
-    clipId: string
-    startTime: number
-    endTime: number
-    duration: number
-    x: number
-    y: number
-  } | null>(null)
+  /* ── 裁剪拖拽 ── */
+  const { trimDrag, trimPreview, handleTrimHandleMouseDown } = useTrimDrag(clips, pps, onClipTrim)
 
-  /* ── 右键菜单 ── */
-  const [contextMenu, setContextMenu] = useState<ContextMenuState | null>(null)
-  const contextMenuRef = useRef<HTMLDivElement>(null)
+  /* ── 片段拖拽排序 ── */
+  const {
+    dragIdx,
+    dragOverIdx,
+    handleDragStart,
+    handleDragOver,
+    handleDragEnd,
+    handleDrop,
+    handleEmptyDragOver,
+  } = useClipDrag(onClipReorder, !!trimDrag)
 
-  /* ── 悬停的片段 ID（显示裁剪手柄） ── */
-  const [hoveredClipId, setHoveredClipId] = useState<string | null>(null)
+  /* ── 菜单 & 面板 ── */
+  const {
+    contextMenu,
+    contextMenuRef,
+    handleContextMenu,
+    handleContextSplit,
+    handleContextResetTrim,
+    handleContextDelete,
+    showAddPicker,
+    pickerRef,
+    addCardRef,
+    pickerPos,
+    availableTypes,
+    addType,
+    addDuration,
+    setAddType,
+    setAddDuration,
+    handleTogglePicker,
+    handleConfirmAdd,
+    hoveredClipId,
+    setHoveredClipId,
+  } = useTimelineMenus(clips, currentMode, onAddClip, onClipSplit, onClipResetTrim, onClipRemove)
 
   /* ── 播放头拖拽状态 ── */
   const [playheadDragging, setPlayheadDragging] = useState(false)
   const trackRef = useRef<HTMLDivElement>(null)
 
-  /* ── 根据模式决定可选类型 ── */
-  const availableTypes: ClipType[] = useMemo(
-    () =>
-      currentMode === "voice_over" ? ["voice"] : currentMode === "pip" ? ["pip"] : ["voice", "pip"], // voice_pip / one_take / 默认
-    [currentMode],
-  )
-
-  /* ── 默认添加类型：跟随模式 ── */
-  const defaultAddType: ClipType = useMemo(() => {
-    if (currentMode === "voice_over") return "voice"
-    if (currentMode === "pip") return "pip"
-    return "voice"
-  }, [currentMode])
-
-  /* ── "+" 卡片：类型+时长选择状态 ── */
-  const [addType, setAddType] = useState<ClipType>(defaultAddType)
-  const [addDuration, setAddDuration] = useState<number>(DEFAULT_ADD_DURATION)
-
-  /* ── 模式切换时自动同步默认添加类型 ── */
-  useEffect(() => {
-    if (!availableTypes.includes(addType)) {
-      setAddType(defaultAddType)
-    }
-  }, [currentMode, addType, availableTypes, defaultAddType])
-
-  /* ── 计算 picker 初始位置 ── */
-  const updatePickerPosition = useCallback(() => {
-    if (!addCardRef.current) return
-    const rect = addCardRef.current.getBoundingClientRect()
-    const vw = window.innerWidth
-    const roughHeight = 180
-    let top = rect.top - TRACK_GAP - roughHeight
-    if (top < 8) top = 8
-    let right = vw - rect.right
-    if (rect.right - ADD_PICKER_WIDTH < 8) {
-      right = vw - ADD_PICKER_WIDTH - 8
-    }
-    setPickerPos({ top, right })
-  }, [])
-
-  const handleTogglePicker = () => {
-    if (!showAddPicker) {
-      const defaultType =
-        currentMode === "pip" ? "pip" : currentMode === "voice_over" ? "voice" : "voice"
-      setAddType(defaultType)
-      updatePickerPosition()
-    }
-    setShowAddPicker((v) => !v)
-  }
-
-  /* ── 渲染后精确边界校正 ── */
-  useLayoutEffect(() => {
-    if (!showAddPicker || !pickerRef.current || !addCardRef.current) return
-    const pickerEl = pickerRef.current
-    const addRect = addCardRef.current.getBoundingClientRect()
-    const pickerH = pickerEl.offsetHeight
-    const vh = window.innerHeight
-    const vw = window.innerWidth
-    let top = addRect.top - TRACK_GAP - pickerH
-    if (top < 8) {
-      top = addRect.bottom + TRACK_GAP
-      if (top + pickerH > vh - 8) {
-        top = vh - 8 - pickerH
-        if (top < 8) top = 8
-      }
-    }
-    let right = vw - addRect.right
-    const pickerRect = pickerEl.getBoundingClientRect()
-    if (pickerRect.left < 8) {
-      right = vw - ADD_PICKER_WIDTH - 8
-    }
-    setPickerPos({ top, right })
-  }, [showAddPicker])
-
-  /* ── 点击外部关闭添加面板 ── */
-  useEffect(() => {
-    const handleClickOutside = (e: MouseEvent) => {
-      if (pickerRef.current && !pickerRef.current.contains(e.target as Node)) {
-        setShowAddPicker(false)
-      }
-    }
-    if (showAddPicker) {
-      document.addEventListener("mousedown", handleClickOutside)
-    }
-    return () => document.removeEventListener("mousedown", handleClickOutside)
-  }, [showAddPicker])
-
-  /* ── 点击外部关闭右键菜单 ── */
-  useEffect(() => {
-    const handleClickOutside = (e: MouseEvent) => {
-      if (contextMenuRef.current && !contextMenuRef.current.contains(e.target as Node)) {
-        setContextMenu(null)
-      }
-    }
-    if (contextMenu) {
-      document.addEventListener("mousedown", handleClickOutside)
-    }
-    return () => document.removeEventListener("mousedown", handleClickOutside)
-  }, [contextMenu])
-
-  /* ── 缩放 & 时长 ── */
-  const pps = pixelsPerSecond ?? DEFAULT_PIXELS_PER_SECOND
-  const totalDuration = totalDurationProp ?? clips.reduce((s, c) => s + c.duration, 0)
-
   /* ── 播放头拖拽全局 mousemove/mouseup ── */
   useEffect(() => {
     if (!playheadDragging) return
@@ -271,165 +152,6 @@ const TimelinePanel: React.FC<TimelinePanelProps> = ({
     setPlayheadDragging(true)
   }, [])
 
-  /* ── 确认添加片段 ── */
-  const handleConfirmAdd = () => {
-    onAddClip(addType, addDuration)
-    setShowAddPicker(false)
-  }
-
-  /* ── 片段拖拽排序 ── */
-  const handleDragStart = (e: React.DragEvent, idx: number) => {
-    // 如果正在裁剪拖拽，不允许排序拖拽
-    if (trimDrag) return
-    dragRef.current = idx
-    setDragIdx(idx)
-    e.dataTransfer.setData("application/x-clip-drag", String(idx))
-    e.dataTransfer.effectAllowed = "move"
-  }
-
-  const handleDragOver = (e: React.DragEvent, idx: number) => {
-    e.preventDefault()
-    e.dataTransfer.dropEffect = "move"
-    setDragOverIdx(idx)
-  }
-
-  const handleDragEnd = () => {
-    dragRef.current = null
-    setDragIdx(null)
-    setDragOverIdx(null)
-  }
-
-  const handleDrop = (e: React.DragEvent, toIdx: number) => {
-    e.preventDefault()
-    setDragOverIdx(null)
-    const fromStr = e.dataTransfer.getData("application/x-clip-drag")
-    if (fromStr !== "") {
-      const fromIdx = Number(fromStr)
-      if (fromIdx !== toIdx) {
-        onClipReorder(fromIdx, toIdx)
-      }
-    }
-  }
-
-  /* ── 空轨道区域不接受素材拖入 ── */
-  const handleEmptyDragOver = (e: React.DragEvent) => {
-    e.preventDefault()
-  }
-
-  /* ── 裁剪手柄拖拽 ── */
-  const handleTrimHandleMouseDown = useCallback(
-    (e: React.MouseEvent, clipId: string, direction: TrimDirection) => {
-      e.preventDefault()
-      e.stopPropagation()
-      const clip = clips.find((c) => c.id === clipId)
-      if (!clip) return
-
-      const trim: TrimConfig = clip.trim_config ?? {
-        start_time: 0,
-        end_time: clip.duration,
-        original_duration: clip.duration,
-      }
-
-      setTrimDrag({
-        clipId,
-        direction,
-        startX: e.clientX,
-        originalTrim: { ...trim },
-        originalDuration: clip.duration,
-      })
-    },
-    [clips],
-  )
-
-  /* ── 裁剪拖拽全局 mousemove/mouseup ── */
-  useEffect(() => {
-    if (!trimDrag) return
-
-    const handleMouseMove = (e: MouseEvent) => {
-      const dx = e.clientX - trimDrag.startX
-      const dtSec = dx / pps
-      const clip = clips.find((c) => c.id === trimDrag.clipId)
-      if (!clip) return
-
-      const origTrim = trimDrag.originalTrim
-      const origDur = origTrim.original_duration ?? trimDrag.originalDuration
-      let newStart = origTrim.start_time
-      let newEnd = origTrim.end_time
-
-      if (trimDrag.direction === "left") {
-        // 左手柄：调整入点
-        newStart = Math.max(0, Math.min(origTrim.start_time + dtSec, newEnd - MIN_TRIM_DURATION))
-      } else {
-        // 右手柄：调整出点
-        newEnd = Math.max(
-          origTrim.start_time + MIN_TRIM_DURATION,
-          Math.min(origTrim.end_time + dtSec, origDur),
-        )
-      }
-
-      const newDuration = Math.round((newEnd - newStart) * 10) / 10
-
-      setTrimPreview({
-        clipId: trimDrag.clipId,
-        startTime: Math.round(newStart * 10) / 10,
-        endTime: Math.round(newEnd * 10) / 10,
-        duration: newDuration,
-        x: e.clientX,
-        y: e.clientY,
-      })
-    }
-
-    const handleMouseUp = () => {
-      if (trimPreview && trimPreview.clipId === trimDrag.clipId && onClipTrim) {
-        const newTrim: TrimConfig = {
-          start_time: trimPreview.startTime,
-          end_time: trimPreview.endTime,
-          original_duration: trimDrag.originalTrim.original_duration ?? trimDrag.originalDuration,
-        }
-        onClipTrim(trimDrag.clipId, newTrim, trimPreview.duration)
-      }
-      setTrimDrag(null)
-      setTrimPreview(null)
-    }
-
-    document.addEventListener("mousemove", handleMouseMove)
-    document.addEventListener("mouseup", handleMouseUp)
-    return () => {
-      document.removeEventListener("mousemove", handleMouseMove)
-      document.removeEventListener("mouseup", handleMouseUp)
-    }
-  }, [trimDrag, trimPreview, clips, onClipTrim, pps])
-
-  /* ── 右键菜单 ── */
-  const handleContextMenu = useCallback((e: React.MouseEvent, clipId: string) => {
-    e.preventDefault()
-    e.stopPropagation()
-    setContextMenu({ x: e.clientX, y: e.clientY, clipId })
-  }, [])
-
-  /* ── 右键菜单操作 ── */
-  const handleContextSplit = useCallback(() => {
-    if (!contextMenu) return
-    if (onClipSplit) {
-      onClipSplit(contextMenu.clipId, 0.5) // 在中间分割
-    }
-    setContextMenu(null)
-  }, [contextMenu, onClipSplit])
-
-  const handleContextResetTrim = useCallback(() => {
-    if (!contextMenu) return
-    if (onClipResetTrim) {
-      onClipResetTrim(contextMenu.clipId)
-    }
-    setContextMenu(null)
-  }, [contextMenu, onClipResetTrim])
-
-  const handleContextDelete = useCallback(() => {
-    if (!contextMenu) return
-    onClipRemove(contextMenu.clipId)
-    setContextMenu(null)
-  }, [contextMenu, onClipRemove])
-
   return (
     <div className="ep-timeline-area">
       {/* 时间线头部 */}
@@ -443,7 +165,7 @@ const TimelinePanel: React.FC<TimelinePanelProps> = ({
           <div className="ep-timeline-zoom">
             <button
               className="ep-zoom-btn"
-              onClick={() => onZoomChange?.(Math.max(MIN_PIXELS_PER_SECOND, pps - ZOOM_STEP))}
+              onClick={() => onZoomChange?.(Math.max(10, pps - 10))}
               title="缩小"
             >
               −
@@ -451,15 +173,15 @@ const TimelinePanel: React.FC<TimelinePanelProps> = ({
             <input
               type="range"
               className="ep-zoom-slider"
-              min={MIN_PIXELS_PER_SECOND}
-              max={MAX_PIXELS_PER_SECOND}
+              min={10}
+              max={120}
               step={5}
               value={pps}
               onChange={(e) => onZoomChange?.(Number(e.target.value))}
             />
             <button
               className="ep-zoom-btn"
-              onClick={() => onZoomChange?.(Math.min(MAX_PIXELS_PER_SECOND, pps + ZOOM_STEP))}
+              onClick={() => onZoomChange?.(Math.min(120, pps + 10))}
               title="放大"
             >
               +
@@ -583,8 +305,6 @@ const TimelinePanel: React.FC<TimelinePanelProps> = ({
           availableTypes={availableTypes}
           addType={addType}
           addDuration={addDuration}
-          minDuration={MIN_ADD_DURATION}
-          maxDuration={MAX_ADD_DURATION}
           onTypeChange={setAddType}
           onDurationChange={setAddDuration}
           onConfirm={handleConfirmAdd}

apps/web/src/pages/editing-planner/hooks/useClipDrag.ts

@@ -0,0 +1,64 @@
+import { useState, useCallback } from "react"
+
+/**
+ * 片段拖拽排序 Hook
+ * 支持 HTML5 原生拖拽，实时高亮拖拽位置
+ */
+export const useClipDrag = (
+  onClipReorder: (fromIdx: number, toIdx: number) => void,
+  disabled?: boolean,
+) => {
+  const [dragIdx, setDragIdx] = useState<number | null>(null)
+  const [dragOverIdx, setDragOverIdx] = useState<number | null>(null)
+
+  const handleDragStart = useCallback(
+    (e: React.DragEvent, idx: number) => {
+      if (disabled) return
+      setDragIdx(idx)
+      e.dataTransfer.setData("application/x-clip-drag", String(idx))
+      e.dataTransfer.effectAllowed = "move"
+    },
+    [disabled],
+  )
+
+  const handleDragOver = useCallback((e: React.DragEvent, idx: number) => {
+    e.preventDefault()
+    e.dataTransfer.dropEffect = "move"
+    setDragOverIdx(idx)
+  }, [])
+
+  const handleDragEnd = useCallback(() => {
+    setDragIdx(null)
+    setDragOverIdx(null)
+  }, [])
+
+  const handleDrop = useCallback(
+    (e: React.DragEvent, toIdx: number) => {
+      e.preventDefault()
+      setDragOverIdx(null)
+      const fromStr = e.dataTransfer.getData("application/x-clip-drag")
+      if (fromStr !== "") {
+        const fromIdx = Number(fromStr)
+        if (fromIdx !== toIdx) {
+          onClipReorder(fromIdx, toIdx)
+        }
+      }
+      setDragIdx(null)
+    },
+    [onClipReorder],
+  )
+
+  const handleEmptyDragOver = useCallback((e: React.DragEvent) => {
+    e.preventDefault()
+  }, [])
+
+  return {
+    dragIdx,
+    dragOverIdx,
+    handleDragStart,
+    handleDragOver,
+    handleDragEnd,
+    handleDrop,
+    handleEmptyDragOver,
+  }
+}

apps/web/src/pages/editing-planner/hooks/useTimelineMenus.ts

@@ -0,0 +1,192 @@
+import { useState, useRef, useCallback, useEffect, useMemo, useLayoutEffect } from "react"
+import type { ClipData, ClipType } from "../types"
+import { DEFAULT_ADD_DURATION, ADD_PICKER_WIDTH, TRACK_GAP } from "../constants/timeline"
+
+interface ContextMenuState {
+  x: number
+  y: number
+  clipId: string
+}
+
+/**
+ * 时间线菜单 Hook
+ * 管理右键菜单和添加片段面板的状态与交互
+ */
+export const useTimelineMenus = (
+  _clips: ClipData[],
+  currentMode: string,
+  onAddClip: (type: ClipType, duration: number) => void,
+  onClipSplit?: (clipId: string, splitRatio: number) => void,
+  onClipResetTrim?: (clipId: string) => void,
+  onClipRemove?: (clipId: string) => void,
+) => {
+  /* ── 右键菜单 ── */
+  const [contextMenu, setContextMenu] = useState<ContextMenuState | null>(null)
+  const contextMenuRef = useRef<HTMLDivElement>(null)
+
+  /* ── 添加片段面板 ── */
+  const [showAddPicker, setShowAddPicker] = useState(false)
+  const pickerRef = useRef<HTMLDivElement>(null)
+  const addCardRef = useRef<HTMLDivElement>(null)
+  const [pickerPos, setPickerPos] = useState<{ top: number; right: number }>({ top: 0, right: 0 })
+
+  /* ── 悬停的片段 ID（显示裁剪手柄） ── */
+  const [hoveredClipId, setHoveredClipId] = useState<string | null>(null)
+
+  /* ── 根据模式决定可选类型 ── */
+  const availableTypes: ClipType[] = useMemo(
+    () =>
+      currentMode === "voice_over" ? ["voice"] : currentMode === "pip" ? ["pip"] : ["voice", "pip"],
+    [currentMode],
+  )
+
+  /* ── 默认添加类型：跟随模式 ── */
+  const defaultAddType: ClipType = useMemo(() => {
+    if (currentMode === "voice_over") return "voice"
+    if (currentMode === "pip") return "pip"
+    return "voice"
+  }, [currentMode])
+
+  /* ── "+" 卡片：类型+时长选择状态 ── */
+  const [addType, setAddType] = useState<ClipType>(defaultAddType)
+  const [addDuration, setAddDuration] = useState<number>(DEFAULT_ADD_DURATION)
+
+  /* ── 模式切换时自动同步默认添加类型 ── */
+  useEffect(() => {
+    if (!availableTypes.includes(addType)) {
+      setAddType(defaultAddType)
+    }
+  }, [currentMode, addType, availableTypes, defaultAddType])
+
+  /* ── 计算 picker 初始位置 ── */
+  const updatePickerPosition = useCallback(() => {
+    if (!addCardRef.current) return
+    const rect = addCardRef.current.getBoundingClientRect()
+    const vw = window.innerWidth
+    const roughHeight = 180
+    let top = rect.top - TRACK_GAP - roughHeight
+    if (top < 8) top = 8
+    let right = vw - rect.right
+    if (rect.right - ADD_PICKER_WIDTH < 8) {
+      right = vw - ADD_PICKER_WIDTH - 8
+    }
+    setPickerPos({ top, right })
+  }, [])
+
+  const handleTogglePicker = useCallback(() => {
+    if (!showAddPicker) {
+      setAddType(defaultAddType)
+      updatePickerPosition()
+    }
+    setShowAddPicker((v) => !v)
+  }, [showAddPicker, defaultAddType, updatePickerPosition])
+
+  /* ── 渲染后精确边界校正 ── */
+  useLayoutEffect(() => {
+    if (!showAddPicker || !pickerRef.current || !addCardRef.current) return
+    const pickerEl = pickerRef.current
+    const addRect = addCardRef.current.getBoundingClientRect()
+    const pickerH = pickerEl.offsetHeight
+    const vh = window.innerHeight
+    const vw = window.innerWidth
+
+    let top = addRect.top - TRACK_GAP - pickerH
+    if (top < 8) {
+      top = addRect.bottom + TRACK_GAP
+      if (top + pickerH > vh - 8) {
+        top = vh - 8 - pickerH
+        if (top < 8) top = 8
+      }
+    }
+
+    let right = vw - addRect.right
+    const pickerRect = pickerEl.getBoundingClientRect()
+    if (pickerRect.left < 8) {
+      right = vw - ADD_PICKER_WIDTH - 8
+    }
+
+    setPickerPos({ top, right })
+  }, [showAddPicker])
+
+  /* ── 点击外部关闭添加面板 ── */
+  useEffect(() => {
+    const handleClickOutside = (e: MouseEvent) => {
+      if (pickerRef.current && !pickerRef.current.contains(e.target as Node)) {
+        setShowAddPicker(false)
+      }
+    }
+    if (showAddPicker) {
+      document.addEventListener("mousedown", handleClickOutside)
+    }
+    return () => document.removeEventListener("mousedown", handleClickOutside)
+  }, [showAddPicker])
+
+  /* ── 点击外部关闭右键菜单 ── */
+  useEffect(() => {
+    const handleClickOutside = (e: MouseEvent) => {
+      if (contextMenuRef.current && !contextMenuRef.current.contains(e.target as Node)) {
+        setContextMenu(null)
+      }
+    }
+    if (contextMenu) {
+      document.addEventListener("mousedown", handleClickOutside)
+    }
+    return () => document.removeEventListener("mousedown", handleClickOutside)
+  }, [contextMenu])
+
+  /* ── 确认添加片段 ── */
+  const handleConfirmAdd = useCallback(() => {
+    onAddClip(addType, addDuration)
+    setShowAddPicker(false)
+  }, [onAddClip, addType, addDuration])
+
+  /* ── 右键菜单操作 ── */
+  const handleContextMenu = useCallback((e: React.MouseEvent, clipId: string) => {
+    e.preventDefault()
+    e.stopPropagation()
+    setContextMenu({ x: e.clientX, y: e.clientY, clipId })
+  }, [])
+
+  const handleContextSplit = useCallback(() => {
+    if (!contextMenu) return
+    onClipSplit?.(contextMenu.clipId, 0.5)
+    setContextMenu(null)
+  }, [contextMenu, onClipSplit])
+
+  const handleContextResetTrim = useCallback(() => {
+    if (!contextMenu) return
+    onClipResetTrim?.(contextMenu.clipId)
+    setContextMenu(null)
+  }, [contextMenu, onClipResetTrim])
+
+  const handleContextDelete = useCallback(() => {
+    if (!contextMenu) return
+    onClipRemove?.(contextMenu.clipId)
+    setContextMenu(null)
+  }, [contextMenu, onClipRemove])
+
+  return {
+    // 右键菜单
+    contextMenu,
+    contextMenuRef,
+    handleContextMenu,
+    handleContextSplit,
+    handleContextResetTrim,
+    handleContextDelete,
+    // 添加面板
+    showAddPicker,
+    pickerRef,
+    addCardRef,
+    pickerPos,
+    availableTypes,
+    addType,
+    addDuration,
+    setAddType,
+    setAddDuration,
+    handleTogglePicker,
+    handleConfirmAdd,
+    // 悬停状态
+    hoveredClipId,
+    setHoveredClipId,
+  }
+}

apps/web/src/pages/editing-planner/hooks/useTrimDrag.ts

@@ -0,0 +1,121 @@
+import { useState, useCallback, useEffect } from "react"
+import type { ClipData, TrimConfig } from "../types"
+
+interface TrimDragState {
+  clipId: string
+  direction: "left" | "right"
+  startX: number
+  originalTrim: TrimConfig
+  originalDuration: number
+}
+
+interface TrimPreviewState {
+  clipId: string
+  startTime: number
+  endTime: number
+  duration: number
+  x: number
+  y: number
+}
+
+const MIN_TRIM_DURATION = 1
+
+/**
+ * 裁剪拖拽 Hook
+ * 拖拽片段两端手柄调整入点/出点，实时显示预览
+ */
+export const useTrimDrag = (
+  clips: ClipData[],
+  pps: number,
+  onClipTrim?: (clipId: string, trimConfig: TrimConfig, newDuration: number) => void,
+) => {
+  const [trimDrag, setTrimDrag] = useState<TrimDragState | null>(null)
+  const [trimPreview, setTrimPreview] = useState<TrimPreviewState | null>(null)
+
+  const handleTrimHandleMouseDown = useCallback(
+    (e: React.MouseEvent, clipId: string, direction: "left" | "right") => {
+      e.preventDefault()
+      e.stopPropagation()
+      const clip = clips.find((c) => c.id === clipId)
+      if (!clip) return
+
+      const trim: TrimConfig = clip.trim_config ?? {
+        start_time: 0,
+        end_time: clip.duration,
+        original_duration: clip.duration,
+      }
+
+      setTrimDrag({
+        clipId,
+        direction,
+        startX: e.clientX,
+        originalTrim: { ...trim },
+        originalDuration: clip.duration,
+      })
+    },
+    [clips],
+  )
+
+  /* ── 裁剪拖拽全局 mousemove/mouseup ── */
+  useEffect(() => {
+    if (!trimDrag) return
+
+    const handleMouseMove = (e: MouseEvent) => {
+      const dx = e.clientX - trimDrag.startX
+      const dtSec = dx / pps
+      const clip = clips.find((c) => c.id === trimDrag.clipId)
+      if (!clip) return
+
+      const origTrim = trimDrag.originalTrim
+      const origDur = origTrim.original_duration ?? trimDrag.originalDuration
+      let newStart = origTrim.start_time
+      let newEnd = origTrim.end_time
+
+      if (trimDrag.direction === "left") {
+        newStart = Math.max(0, Math.min(origTrim.start_time + dtSec, newEnd - MIN_TRIM_DURATION))
+      } else {
+        newEnd = Math.max(
+          origTrim.start_time + MIN_TRIM_DURATION,
+          Math.min(origTrim.end_time + dtSec, origDur),
+        )
+      }
+
+      const newDuration = Math.round((newEnd - newStart) * 10) / 10
+
+      setTrimPreview({
+        clipId: trimDrag.clipId,
+        startTime: Math.round(newStart * 10) / 10,
+        endTime: Math.round(newEnd * 10) / 10,
+        duration: newDuration,
+        x: e.clientX,
+        y: e.clientY,
+      })
+    }
+
+    const handleMouseUp = () => {
+      if (trimPreview && trimPreview.clipId === trimDrag.clipId && onClipTrim) {
+        const newTrim: TrimConfig = {
+          start_time: trimPreview.startTime,
+          end_time: trimPreview.endTime,
+          original_duration: trimDrag.originalTrim.original_duration ?? trimDrag.originalDuration,
+        }
+        onClipTrim(trimDrag.clipId, newTrim, trimPreview.duration)
+      }
+      setTrimDrag(null)
+      setTrimPreview(null)
+    }
+
+    document.addEventListener("mousemove", handleMouseMove)
+    document.addEventListener("mouseup", handleMouseUp)
+    return () => {
+      document.removeEventListener("mousemove", handleMouseMove)
+      document.removeEventListener("mouseup", handleMouseUp)
+    }
+  }, [trimDrag, trimPreview, clips, pps, onClipTrim])
+
+  return {
+    trimDrag,
+    trimPreview,
+    handleTrimHandleMouseDown,
+  }
+}

apps/web/src/test/pages/editing-planner/smoke.test.tsx

@@ -94,6 +94,9 @@ import "@/pages/editing-planner/hooks/usePipLayers"
 import "@/pages/editing-planner/hooks/useStickerItems"
 import "@/pages/editing-planner/hooks/useTtsPanel"
 import "@/pages/editing-planner/hooks/useWatermarkConfig"
+import "@/pages/editing-planner/hooks/useTimelineMenus"
+import "@/pages/editing-planner/hooks/useTrimDrag"
+import "@/pages/editing-planner/hooks/useClipDrag"
 
 describe("EditingPlanner module smoke test", () => {
   it("should load all editing-planner modules", () => {