feat: refine canvas image selection style and drag-safe renaming

components/canvas/CanvasWorkspace.tsx

@@ -37,6 +37,9 @@ function isNodeInViewport(
 }
 
 export function CanvasWorkspace() {
+  const SNAP_THRESHOLD = 10;
+  const SNAP_GAP = 12;
+  const SELECTION_COLOR = "#3182ed";
   const containerRef = useRef<HTMLDivElement>(null);
   const [isPanning, setIsPanning] = useState(false);
   const [panStart, setPanStart] = useState<Position>({ x: 0, y: 0 });
@@ -172,6 +175,89 @@ export function CanvasWorkspace() {
     return /Mac|iPhone|iPad|iPod/i.test(navigator.platform);
   }, []);
 
+  const hasBlockingDialogOpen = useCallback(() => {
+    if (typeof document === "undefined") return false;
+    return Boolean(document.querySelector('[role="dialog"][data-state="open"]'));
+  }, []);
+
+  const getSnappedCanvasPosition = useCallback(
+    (
+      node: CanvasNode,
+      target: Position,
+      ignoreNodeIds: Set<string> = new Set(),
+    ): Position => {
+      if (node.type !== "image") {
+        return target;
+      }
+
+      const candidates = nodes.filter(
+        (item) =>
+          item.type === "image" &&
+          item.id !== node.id &&
+          !ignoreNodeIds.has(item.id),
+      );
+
+      if (candidates.length === 0) {
+        return target;
+      }
+
+      let bestOffsetX = 0;
+      let bestDeltaX = Number.POSITIVE_INFINITY;
+      let bestOffsetY = 0;
+      let bestDeltaY = Number.POSITIVE_INFINITY;
+
+      const selfLeft = target.x;
+      const selfCenterX = target.x + node.size.width / 2;
+      const selfRight = target.x + node.size.width;
+      const selfTop = target.y;
+      const selfCenterY = target.y + node.size.height / 2;
+      const selfBottom = target.y + node.size.height;
+
+      const pickBestX = (delta: number) => {
+        const abs = Math.abs(delta);
+        if (abs <= SNAP_THRESHOLD && abs < bestDeltaX) {
+          bestDeltaX = abs;
+          bestOffsetX = delta;
+        }
+      };
+
+      const pickBestY = (delta: number) => {
+        const abs = Math.abs(delta);
+        if (abs <= SNAP_THRESHOLD && abs < bestDeltaY) {
+          bestDeltaY = abs;
+          bestOffsetY = delta;
+        }
+      };
+
+      for (const candidate of candidates) {
+        const targetLeft = candidate.position.x;
+        const targetCenterX = candidate.position.x + candidate.size.width / 2;
+        const targetRight = candidate.position.x + candidate.size.width;
+        const targetTop = candidate.position.y;
+        const targetCenterY = candidate.position.y + candidate.size.height / 2;
+        const targetBottom = candidate.position.y + candidate.size.height;
+
+        pickBestX(targetLeft - selfLeft);
+        pickBestX(targetCenterX - selfCenterX);
+        pickBestX(targetRight - selfRight);
+        pickBestX(targetRight + SNAP_GAP - selfLeft);
+        pickBestX(targetLeft - SNAP_GAP - selfRight);
+
+        pickBestY(targetTop - selfTop);
+        pickBestY(targetCenterY - selfCenterY);
+        pickBestY(targetBottom - selfBottom);
+        pickBestY(targetBottom + SNAP_GAP - selfTop);
+        pickBestY(targetTop - SNAP_GAP - selfBottom);
+      }
+
+      return {
+        x: target.x + (Number.isFinite(bestDeltaX) ? bestOffsetX : 0),
+        y: target.y + (Number.isFinite(bestDeltaY) ? bestOffsetY : 0),
+      };
+    },
+    [nodes, SNAP_GAP],
+  );
+
   const toCanvasPosition = useCallback((clientX: number, clientY: number): Position => {
     const rect = containerRef.current?.getBoundingClientRect();
     if (!rect) return { x: 0, y: 0 };
@@ -193,6 +279,7 @@ export function CanvasWorkspace() {
 
   // 处理画布点击（取消选择）
   const handleCanvasClick = useCallback((e: React.MouseEvent) => {
+    if (hasBlockingDialogOpen()) return;
     if (!isEventFromCanvasContainer(e.target)) return;
     if (suppressCanvasClickRef.current) {
       suppressCanvasClickRef.current = false;
@@ -201,10 +288,11 @@ export function CanvasWorkspace() {
     if (!isPointOnNodeElement(e.target) && !isMarqueeSelecting) {
       clearSelection();
     }
-  }, [clearSelection, isEventFromCanvasContainer, isMarqueeSelecting, isPointOnNodeElement]);
+  }, [clearSelection, hasBlockingDialogOpen, isEventFromCanvasContainer, isMarqueeSelecting, isPointOnNodeElement]);
 
   // 处理画布平移开始
   const handleMouseDown = useCallback((e: React.MouseEvent) => {
+    if (hasBlockingDialogOpen()) return;
     if (!isEventFromCanvasContainer(e.target)) return;
     if (tool === 'pan' || e.button === 1 || (e.button === 0 && e.altKey)) {
       setIsPanning(true);
@@ -219,10 +307,14 @@ export function CanvasWorkspace() {
       setMarqueeStart(start);
       setMarqueeEnd(start);
     }
-  }, [isEventFromCanvasContainer, isPointOnNodeElement, toCanvasPosition, tool, viewport]);
+  }, [hasBlockingDialogOpen, isEventFromCanvasContainer, isPointOnNodeElement, toCanvasPosition, tool, viewport]);
 
   // 处理画布平移
   const handleMouseMove = useCallback((e: React.MouseEvent) => {
+    if (hasBlockingDialogOpen()) {
+      if (isPanning) setIsPanning(false);
+      return;
+    }
     if (!isEventFromCanvasContainer(e.target)) return;
     dragPointerRef.current = toCanvasPosition(e.clientX, e.clientY);
     if (isPanning) {
@@ -236,7 +328,7 @@ export function CanvasWorkspace() {
     if (isMarqueeSelecting) {
       setMarqueeEnd(toCanvasPosition(e.clientX, e.clientY));
     }
-  }, [isEventFromCanvasContainer, isMarqueeSelecting, isPanning, panStart, setViewport, toCanvasPosition]);
+  }, [hasBlockingDialogOpen, isEventFromCanvasContainer, isMarqueeSelecting, isPanning, panStart, setViewport, toCanvasPosition]);
 
   // 处理画布平移结束
   const handleMouseUp = useCallback((e?: React.MouseEvent) => {
@@ -313,6 +405,7 @@ export function CanvasWorkspace() {
 
   // 处理滚轮缩放
   const handleWheel = useCallback((e: React.WheelEvent) => {
+    if (hasBlockingDialogOpen()) return;
     if (!isEventFromCanvasContainer(e.target)) return;
     if (e.cancelable) {
       e.preventDefault();
@@ -340,7 +433,7 @@ export function CanvasWorkspace() {
     const newX = mouseX - (mouseX - viewport.x) * scaleChange;
     const newY = mouseY - (mouseY - viewport.y) * scaleChange;
     setViewport({ x: newX, y: newY, zoom: newZoom });
-  }, [isEventFromCanvasContainer, isMacPlatform, setViewport, viewport.x, viewport.y, viewport.zoom]);
+  }, [hasBlockingDialogOpen, isEventFromCanvasContainer, isMacPlatform, setViewport, viewport.x, viewport.y, viewport.zoom]);
 
   const getImageDimensionsFromFile = useCallback((file: File): Promise<{
     width: number;
@@ -587,6 +680,61 @@ export function CanvasWorkspace() {
   // 渲染节点
   const renderNode = (node: CanvasNode) => {
     const isSelected = selectedNodeIds.includes(node.id);
+    const isImageNode = node.type === "image";
+    const enableImageResizeHandles =
+      isSelected && tool === "select" && isImageNode
+        ? {
+            top: false,
+            right: false,
+            bottom: false,
+            left: false,
+            topRight: true,
+            bottomRight: true,
+            bottomLeft: true,
+            topLeft: true,
+          }
+        : isSelected && tool === "select";
+
+    const imageResizeHandleStyles = isImageNode
+      ? {
+          topRight: {
+            width: 12,
+            height: 12,
+            right: -6,
+            top: -6,
+            borderRadius: 999,
+            border: `2px solid ${SELECTION_COLOR}`,
+            backgroundColor: "#ffffff",
+          },
+          bottomRight: {
+            width: 12,
+            height: 12,
+            right: -6,
+            bottom: -6,
+            borderRadius: 999,
+            border: `2px solid ${SELECTION_COLOR}`,
+            backgroundColor: "#ffffff",
+          },
+          bottomLeft: {
+            width: 12,
+            height: 12,
+            left: -6,
+            bottom: -6,
+            borderRadius: 999,
+            border: `2px solid ${SELECTION_COLOR}`,
+            backgroundColor: "#ffffff",
+          },
+          topLeft: {
+            width: 12,
+            height: 12,
+            left: -6,
+            top: -6,
+            borderRadius: 999,
+            border: `2px solid ${SELECTION_COLOR}`,
+            backgroundColor: "#ffffff",
+          },
+        }
+      : undefined;
     
     return (
       <Rnd
@@ -644,12 +792,29 @@ export function CanvasWorkspace() {
           if (group && group.nodeId === node.id && selectedNodeIds.length > 1) {
             const deltaCanvasX = (d.x - group.startX) / viewport.zoom;
             const deltaCanvasY = (d.y - group.startY) / viewport.zoom;
+            const origin = group.originPositions[node.id];
+            const rawAnchor = origin
+              ? {
+                  x: origin.x + deltaCanvasX,
+                  y: origin.y + deltaCanvasY,
+                }
+              : {
+                  x: node.position.x + deltaCanvasX,
+                  y: node.position.y + deltaCanvasY,
+                };
+            const snappedAnchor = getSnappedCanvasPosition(
+              node,
+              rawAnchor,
+              new Set(selectedNodeIds),
+            );
+            const offsetX = origin ? snappedAnchor.x - origin.x : deltaCanvasX;
+            const offsetY = origin ? snappedAnchor.y - origin.y : deltaCanvasY;
             selectedNodeIds.forEach((id) => {
-              const origin = group.originPositions[id];
-              if (!origin) return;
+              const itemOrigin = group.originPositions[id];
+              if (!itemOrigin) return;
               moveNode(id, {
-                x: origin.x + deltaCanvasX,
-                y: origin.y + deltaCanvasY,
+                x: itemOrigin.x + offsetX,
+                y: itemOrigin.y + offsetY,
               });
             });
             groupDragRef.current = null;
@@ -659,7 +824,8 @@ export function CanvasWorkspace() {
 
           const newX = (d.x - viewport.x) / viewport.zoom;
           const newY = (d.y - viewport.y) / viewport.zoom;
-          moveNode(node.id, { x: newX, y: newY });
+          const snapped = getSnappedCanvasPosition(node, { x: newX, y: newY });
+          moveNode(node.id, snapped);
           groupDragRef.current = null;
           pushHistory();
         }}
@@ -674,8 +840,10 @@ export function CanvasWorkspace() {
           pushHistory();
         }}
         bounds="parent"
-        enableResizing={isSelected && tool === 'select'}
+        enableResizing={enableImageResizeHandles}
+        resizeHandleStyles={imageResizeHandleStyles}
         disableDragging={tool !== 'select'}
+        cancel={'input, textarea, button, a, [contenteditable="true"], [data-canvas-no-drag="true"]'}
         className={cn(
           "absolute",
           tool === "select" && "cursor-pointer"

components/canvas/nodes/ImageNode.tsx

@@ -1437,8 +1437,12 @@ export function ImageNode({ node, isSelected }: ImageNodeProps) {
               <Input
                 value={draftTitle}
                 autoFocus
+                data-canvas-no-drag="true"
                 className="h-6 px-2 py-0 text-xs w-[160px]"
                 onChange={(e) => setDraftTitle(e.target.value)}
+                onMouseDown={(e) => e.stopPropagation()}
+                onPointerDown={(e) => e.stopPropagation()}
+                onClick={(e) => e.stopPropagation()}
                 onBlur={handleSaveTitle}
                 onKeyDown={(e) => {
                   if (e.key === "Enter") {
@@ -1471,9 +1475,9 @@ export function ImageNode({ node, isSelected }: ImageNodeProps) {
       <div
         ref={containerRef}
         className={cn(
-          "relative w-full h-full bg-card rounded-lg overflow-hidden border-2 shadow-sm transition-colors",
+          "relative w-full h-full bg-card rounded-[4px] overflow-hidden border shadow-sm transition-colors",
           isSelected
-            ? "border-transparent shadow-[0_0_0_1px_rgba(59,130,246,0.18),0_14px_28px_-18px_rgba(59,130,246,0.45)]"
+            ? "border-[#3182ed] shadow-none"
             : "border-transparent"
         )}
         onMouseEnter={() => setIsHovered(true)}