[FE][Refactor] #224 : CanvasWithMap 이벤트 함수를 훅으로 분리

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
 
       - name: Run Build
         run: pnpm build  # pnpm을 사용하여 빌드 실행
-        continue-on-error: false # 빌드 실패 시 워크플로우 실패로 처리
+#        continue-on-error: false # 빌드 실패 시 워크플로우 실패로 처리
 
       - name: Run Tests
         run: pnpm test  # pnpm을 사용하여 테스트 실행

frontend/src/component/canvas/Canvas.tsx

@@ -44,7 +44,7 @@ export interface ICanvasRefMethods {
 }
 
 export const Canvas = forwardRef<ICanvasRefMethods, ICanvasProps>((props, ref) => {
-  const canvasRef = useRef<HTMLCanvasElement>(null);
+  const canvasRef = useRef<HTMLCanvasElement>(null!);
   const { points, addPoint, undo, redo, undoStack, redoStack } = useUndoRedo([]);
   const [startPoint, setStartPoint] = useState<IPoint | null>(null);
   const [endPoint, setEndPoint] = useState<IPoint | null>(null);

frontend/src/component/canvas/CanvasWithMap.tsx

@@ -1,9 +1,9 @@
-import { Canvas, ICanvasRefMethods } from '@/component/canvas/Canvas.tsx';
-import { Map, IMapRefMethods } from '@/component/maps/Map.tsx';
-import classNames from 'classnames';
-import { ICanvasVertex } from '@/utils/screen/canvasUtils.ts';
-import { INaverMapVertexPosition } from '@/component/maps/naverMapUtils.ts';
 import { useRef, useEffect, useState } from 'react';
+import classNames from 'classnames';
+import { Canvas, ICanvasRefMethods } from '@/component/canvas/Canvas.tsx';
+import { Map } from '@/component/maps/Map.tsx';
+import { IMapObject, IMapRefMethods } from '@/component/maps/Map.types.ts';
+import { useEventHandlers } from '@/component/canvas/useEventHandlers.tsx';
 
 interface ICanvasWithMapProps {
   className?: string;
@@ -14,32 +14,13 @@ interface ICanvasWithMapProps {
   allowCanvas?: boolean;
 }
 
-interface IMouseEventState {
-  isMouseDown: boolean;
-  mouseDownPosition: { x: number; y: number };
-  // mouseMovePosition: { x: number; y: number };
-  mouseDeltaPosition: { x: number; y: number };
-}
-
-export interface ILocationObject {
-  canvas: ICanvasVertex;
-  map: INaverMapVertexPosition;
-}
-
-const MouseEventStateInitialValue = {
-  isMouseDown: false,
-  mouseDownPosition: { x: 0, y: 0 },
-  // mouseMovePosition: { x: 0, y: 0 },
-  mouseDeltaPosition: { x: 0, y: 0 },
-};
-
 export const CanvasWithMap = (props: ICanvasWithMapProps) => {
   const mapRefMethods = useRef<IMapRefMethods | null>(null);
-  const mapElement = useRef<HTMLElement | null>(null);
   const canvasRefMethods = useRef<ICanvasRefMethods | null>(null);
+  const mapElement = useRef<HTMLElement | null>(null);
   const canvasElement = useRef<HTMLCanvasElement | null>(null);
-  const mouseEventState = useRef<IMouseEventState>({ ...MouseEventStateInitialValue });
-  const [mapObject, setMapObject] = useState<naver.maps.Map | null>(null);
+
+  const [mapObject, setMapObject] = useState<IMapObject | null>(null);
 
   useEffect(() => {
     if (canvasRefMethods.current?.getCanvasElement)
@@ -50,46 +31,16 @@ export const CanvasWithMap = (props: ICanvasWithMapProps) => {
     mapElement.current = mapRefMethods.current?.getMapContainer() ?? null;
   }, [mapObject]);
 
-  const initMap = (mapObj: naver.maps.Map | null) => {
-    setMapObject(mapObj);
-  };
-
-  const handleClick = (event: React.MouseEvent) => {
-    mapRefMethods.current?.onMouseClickHandler(event);
-    canvasRefMethods.current?.onMouseClickHandler(event);
-  };
-
-  const handleMouseDown = (event: React.MouseEvent<HTMLElement>) => {
-    if (!mapElement.current || !canvasElement.current) return;
-    mouseEventState.current.isMouseDown = true;
-    mouseEventState.current.mouseDownPosition = { x: event.clientX, y: event.clientY };
-    canvasRefMethods.current?.onMouseDownHandler(event);
-  };
-
-  const handleMouseMove = (event: React.MouseEvent<HTMLElement>) => {
-    if (!mapElement.current || !canvasElement.current || !mouseEventState.current.isMouseDown)
-      return;
-
-    // TODO: 쓰로틀링 걸기
-    mouseEventState.current.mouseDeltaPosition = {
-      x: -(event.clientX - mouseEventState.current.mouseDownPosition.x),
-      y: -(event.clientY - mouseEventState.current.mouseDownPosition.y),
-    };
-
-    mapObject?.panBy(
-      new naver.maps.Point(
-        mouseEventState.current.mouseDeltaPosition.x,
-        mouseEventState.current.mouseDeltaPosition.y,
-      ),
-    );
-
-    canvasRefMethods.current?.onMouseMoveHandler(event);
-  };
+  const { handleClick, handleMouseDown, handleMouseMove, handleMouseUp } = useEventHandlers(
+    canvasElement.current,
+    canvasRefMethods.current,
+    mapElement.current,
+    mapRefMethods.current,
+    mapObject,
+  );
 
-  const handleMouseUp = (event: React.MouseEvent) => {
-    if (!mapElement.current || !canvasElement.current) return;
-    mouseEventState.current = { ...MouseEventStateInitialValue };
-    canvasRefMethods.current?.onMouseUpHandler(event);
+  const initMap = (mapObj: IMapObject | null) => {
+    setMapObject(mapObj);
   };
 
   return (

frontend/src/component/canvas/useEventHandlers.tsx

@@ -0,0 +1,86 @@
+import { useRef } from 'react';
+import { ICanvasRefMethods } from '@/component/canvas/Canvas.tsx';
+import { IMapObject, IMapRefMethods } from '@/component/maps/Map.types.ts';
+
+// TODO:  리팩토룅 시 null을 처리하기
+interface IUseEventHandlers {
+  (
+    canvasElement: HTMLCanvasElement | null,
+    canvasRefMethods: ICanvasRefMethods | null,
+    mapElement: HTMLElement | null,
+    mapRefMethods: IMapRefMethods | null,
+    mapObject: IMapObject | null, // 비동기 로딩 시 null로 처리가 될 수 있어서 예외처리 필요
+  ): {
+    handleClick: (event: React.MouseEvent) => void;
+    handleMouseDown: (event: React.MouseEvent) => void;
+    handleMouseMove: (event: React.MouseEvent) => void;
+    handleMouseUp: (event: React.MouseEvent) => void;
+  };
+}
+
+interface IMouseEventState {
+  isMouseDown: boolean;
+  mouseDownPosition: { x: number; y: number };
+  // mouseMovePosition: { x: number; y: number };
+  mouseDeltaPosition: { x: number; y: number };
+}
+
+const MouseEventStateInitialValue = {
+  isMouseDown: false,
+  mouseDownPosition: { x: 0, y: 0 },
+  // mouseMovePosition: { x: 0, y: 0 },
+  mouseDeltaPosition: { x: 0, y: 0 },
+};
+
+export const useEventHandlers: IUseEventHandlers = (
+  canvasElement,
+  canvasRefMethods,
+  mapElement,
+  mapRefMethods,
+  mapObject,
+) => {
+  // if (!canvasElement || !canvasElement || !mapElement || !mapRefMethods || !mapObject)
+  //   throw new Error('🚀 useEventHandler error : null 값이 포함되어 있습니다.');
+
+  const mouseEventState = useRef<IMouseEventState>({ ...MouseEventStateInitialValue });
+
+  const handleClick = (event: React.MouseEvent) => {
+    mapRefMethods?.onMouseClickHandler(event);
+    canvasRefMethods?.onMouseClickHandler(event);
+  };
+
+  const handleMouseDown = (event: React.MouseEvent) => {
+    if (!mapElement || !canvasElement) return;
+    mouseEventState.current.isMouseDown = true;
+    mouseEventState.current.mouseDownPosition = { x: event.clientX, y: event.clientY };
+    canvasRefMethods?.onMouseDownHandler(event);
+  };
+
+  const handleMouseMove = (event: React.MouseEvent) => {
+    if (!mapElement || !canvasElement || !mouseEventState.current.isMouseDown) return;
+
+    // TODO: 쓰로틀링 걸기
+    mouseEventState.current.mouseDeltaPosition = {
+      x: -(event.clientX - mouseEventState.current.mouseDownPosition.x),
+      y: -(event.clientY - mouseEventState.current.mouseDownPosition.y),
+    };
+
+    // TODO: 범용 지도에 따른 Refactoring 필요, 우선은 네이버 지도에 한해서만 수행
+    mapObject?.panBy(
+      new naver.maps.Point(
+        mouseEventState.current.mouseDeltaPosition.x,
+        mouseEventState.current.mouseDeltaPosition.y,
+      ),
+    );
+
+    canvasRefMethods?.onMouseMoveHandler(event);
+  };
+
+  const handleMouseUp = (event: React.MouseEvent) => {
+    if (!mapElement || !canvasElement) return;
+    mouseEventState.current = { ...MouseEventStateInitialValue };
+    canvasRefMethods?.onMouseUpHandler(event);
+  };
+
+  return { handleClick, handleMouseDown, handleMouseMove, handleMouseUp };
+};