refactor: delete useTrimDrag.ts (#1899 #1900)

2026-09-14 20:45:02 +08:00
parent 9df56657f0
commit b2b20535e4
1 changed files with 0 additions and 121 deletions
@@ -1,121 +0,0 @@
-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,
-  }
-}