refactor(PipConfigPanel): 提取核心逻辑Hook

2026-07-30 09:09:59 +08:00
parent 291291a1de
commit 4d92df05a4
1 changed files with 123 additions and 0 deletions
@@ -0,0 +1,123 @@
+import { useState, useCallback, useMemo } from "react"
+import type { PipConfig, PipLayer, PipGridPosition } from "../types"
+import { DEFAULT_PIP_LAYER, DEFAULT_PIP_CONFIG } from "../types"
+import { GRID_POSITION_MAP, genLayerId } from "../constants"
+
+interface UsePipConfigPanelOptions {
+  config: PipConfig
+  onChange: (config: PipConfig) => void
+}
+
+export const usePipConfigPanel = ({ config, onChange }: UsePipConfigPanelOptions) => {
+  const [selectedId, setSelectedId] = useState<string>("")
+
+  const selectedLayer = useMemo(
+    () => config.layers.find((l) => l.id === selectedId) ?? null,
+    [config.layers, selectedId],
+  )
+
+  /* ── 添加图层 ── */
+  const handleAddLayer = useCallback(() => {
+    const newLayer: PipLayer = {
+      ...DEFAULT_PIP_LAYER,
+      id: genLayerId(),
+      name: `图层 ${config.layers.length + 1}`,
+      z_index: config.layers.length + 1,
+    }
+    onChange({
+      ...config,
+      layers: [...config.layers, newLayer],
+    })
+    setSelectedId(newLayer.id)
+  }, [config, onChange])
+
+  /* ── 删除图层 ── */
+  const handleDeleteLayer = useCallback(
+    (id: string) => {
+      const newLayers = config.layers.filter((l) => l.id !== id)
+      onChange({ ...config, layers: newLayers })
+      if (selectedId === id) {
+        setSelectedId(newLayers.length > 0 ? newLayers[0].id : "")
+      }
+    },
+    [config, onChange, selectedId],
+  )
+
+  /* ── 更新图层 ── */
+  const updateLayer = useCallback(
+    (id: string, partial: Partial<PipLayer>) => {
+      onChange({
+        ...config,
+        layers: config.layers.map((l) => (l.id === id ? { ...l, ...partial } : l)),
+      })
+    },
+    [config, onChange],
+  )
+
+  /* ── 切换启用 ── */
+  const handleEnableToggle = useCallback(
+    (checked: boolean) => {
+      onChange({ ...config, enabled: checked })
+    },
+    [config, onChange],
+  )
+
+  /* ── 重置 ── */
+  const handleReset = useCallback(() => {
+    onChange({ ...DEFAULT_PIP_CONFIG })
+    setSelectedId("")
+  }, [onChange])
+
+  /* ── 九宫格点击 ── */
+  const handleGridClick = useCallback(
+    (pos: PipGridPosition) => {
+      if (!selectedLayer) return
+      const coords = GRID_POSITION_MAP[pos]
+      updateLayer(selectedLayer.id, {
+        grid_position: pos,
+        x: coords.x,
+        y: coords.y,
+      })
+    },
+    [selectedLayer, updateLayer],
+  )
+
+  /* ── 宽高变化 ── */
+  const handleWidthChange = useCallback(
+    (val: number) => {
+      if (!selectedLayer) return
+      const partial: Partial<PipLayer> = { width: val }
+      if (selectedLayer.aspect_lock) {
+        partial.height = val
+      }
+      updateLayer(selectedLayer.id, partial)
+    },
+    [selectedLayer, updateLayer],
+  )
+
+  const handleHeightChange = useCallback(
+    (val: number) => {
+      if (!selectedLayer) return
+      const partial: Partial<PipLayer> = { height: val }
+      if (selectedLayer.aspect_lock) {
+        partial.width = val
+      }
+      updateLayer(selectedLayer.id, partial)
+    },
+    [selectedLayer, updateLayer],
+  )
+
+  return {
+    selectedId,
+    setSelectedId,
+    selectedLayer,
+    handleAddLayer,
+    handleDeleteLayer,
+    updateLayer,
+    handleEnableToggle,
+    handleReset,
+    handleGridClick,
+    handleWidthChange,
+    handleHeightChange,
+  }
+}