feat(flow): add properties for configuring no-interaction classes

src/container/EdgeRenderer/index.tsx

@@ -1,5 +1,6 @@
 import React, { memo, CSSProperties, useCallback } from 'react';
 import shallow from 'zustand/shallow';
+import cc from 'classcat';
 
 import { useStore } from '../../store';
 import ConnectionLine from '../../components/ConnectionLine/index';
@@ -35,6 +36,7 @@ interface EdgeRendererProps {
   onEdgeUpdateStart?: (event: React.MouseEvent, edge: Edge) => void;
   onEdgeUpdateEnd?: (event: MouseEvent, edge: Edge) => void;
   edgeUpdaterRadius?: number;
+  noPanClassName?: string;
 }
 
 interface EdgeWrapperProps {
@@ -63,6 +65,7 @@ interface EdgeWrapperProps {
   targetNodeX?: number;
   targetNodeY?: number;
   targetNodeHandleBounds?: NodeHandleBounds;
+  noPanClassName?: string;
 }
 
 const Edge = memo(
@@ -92,6 +95,7 @@ const Edge = memo(
     targetNodeX,
     targetNodeY,
     targetNodeHandleBounds,
+    noPanClassName,
   }: EdgeWrapperProps) => {
     const sourceHandleId = edge.sourceHandle || null;
     const targetHandleId = edge.targetHandle || null;
@@ -163,7 +167,7 @@ const Edge = memo(
       <EdgeComponent
         key={edge.id}
         id={edge.id}
-        className={edge.className}
+        className={cc([edge.className, noPanClassName])}
         type={edgeType}
         data={edge.data}
         onClick={onEdgeClick}
@@ -283,6 +287,7 @@ const EdgeRenderer = (props: EdgeRendererProps) => {
                   onEdgeUpdate={props.onEdgeUpdate}
                   edgeTypes={props.edgeTypes}
                   connectionMode={connectionMode}
+                  noPanClassName={props.noPanClassName}
                 />
               );
             })}

src/container/FlowRenderer/index.tsx

@@ -59,6 +59,9 @@ const FlowRenderer = ({
   onSelectionDrag,
   onSelectionDragStop,
   onSelectionContextMenu,
+  noDragClassName,
+  noZoomClassName,
+  noPanClassName,
 }: FlowRendererProps) => {
   const { unsetNodesSelection, resetSelectedElements, nodesSelectionActive } = useStore(selector, shallow);
 
@@ -107,6 +110,9 @@ const FlowRenderer = ({
       defaultZoom={defaultZoom}
       zoomActivationKeyCode={zoomActivationKeyCode}
       preventScrolling={preventScrolling}
+      noDragClassName={noDragClassName}
+      noZoomClassName={noZoomClassName}
+      noPanClassName={noPanClassName}
     >
       {children}
       <UserSelection selectionKeyPressed={selectionKeyPressed} />

src/container/GraphView/index.tsx

@@ -76,6 +76,9 @@ const GraphView = ({
   edgeUpdaterRadius,
   onEdgeUpdateStart,
   onEdgeUpdateEnd,
+  noDragClassName,
+  noZoomClassName,
+  noPanClassName,
 }: GraphViewProps) => {
   useOnLoadHandler(onLoad);
 
@@ -106,6 +109,9 @@ const GraphView = ({
       onSelectionDragStop={onSelectionDragStop}
       onSelectionContextMenu={onSelectionContextMenu}
       preventScrolling={preventScrolling}
+      noDragClassName={noDragClassName}
+      noZoomClassName={noZoomClassName}
+      noPanClassName={noPanClassName}
     >
       <Viewport>
         <EdgeRenderer
@@ -125,6 +131,7 @@ const GraphView = ({
           onEdgeUpdateEnd={onEdgeUpdateEnd}
           edgeUpdaterRadius={edgeUpdaterRadius}
           defaultMarkerColor={defaultMarkerColor}
+          noPanClassName={noPanClassName}
         />
         <NodeRenderer
           nodeTypes={nodeTypes}
@@ -139,6 +146,7 @@ const GraphView = ({
           onNodeDragStart={onNodeDragStart}
           selectNodesOnDrag={selectNodesOnDrag}
           onlyRenderVisibleElements={onlyRenderVisibleElements}
+          noPanClassName={noPanClassName}
         />
       </Viewport>
     </FlowRenderer>

src/container/NodeRenderer/index.tsx

@@ -1,5 +1,6 @@
 import React, { memo, useMemo, ComponentType, MouseEvent } from 'react';
 import shallow from 'zustand/shallow';
+import cc from 'classcat';
 
 import { useStore } from '../../store';
 import { Node, NodeTypesType, ReactFlowState, WrapNodeProps } from '../../types';
@@ -19,6 +20,7 @@ interface NodeRendererProps {
   onNodeDrag?: (event: MouseEvent, node: Node) => void;
   onNodeDragStop?: (event: MouseEvent, node: Node) => void;
   onlyRenderVisibleElements: boolean;
+  noPanClassName?: string;
 }
 
 const selector = (s: ReactFlowState) => ({
@@ -76,7 +78,7 @@ const NodeRenderer = (props: NodeRendererProps) => {
           <NodeComponent
             key={node.id}
             id={node.id}
-            className={node.className}
+            className={cc([node.className, props.noPanClassName])}
             style={node.style}
             type={nodeType}
             data={node.data}

src/container/ReactFlow/index.tsx

@@ -129,6 +129,9 @@ export interface ReactFlowProps extends Omit<HTMLAttributes<HTMLDivElement>, 'on
   onEdgeUpdateStart?: (event: ReactMouseEvent, edge: Edge) => void;
   onEdgeUpdateEnd?: (event: MouseEvent, edge: Edge) => void;
   edgeUpdaterRadius?: number;
+  noDragClassName?: string;
+  noZoomClassName?: string;
+  noPanClassName?: string;
 }
 
 export type ReactFlowRefType = HTMLDivElement;
@@ -212,6 +215,9 @@ const ReactFlow = forwardRef<ReactFlowRefType, ReactFlowProps>(
       edgeUpdaterRadius = 10,
       onNodesChange,
       onEdgesChange,
+      noDragClassName = 'nodrag',
+      noZoomClassName = 'nowheel',
+      noPanClassName = 'nopan',
       ...rest
     },
     ref
@@ -276,6 +282,9 @@ const ReactFlow = forwardRef<ReactFlowRefType, ReactFlowProps>(
             onEdgeUpdateEnd={onEdgeUpdateEnd}
             edgeUpdaterRadius={edgeUpdaterRadius}
             defaultMarkerColor={defaultMarkerColor}
+            noDragClassName={noDragClassName}
+            noZoomClassName={noZoomClassName}
+            noPanClassName={noPanClassName}
           />
           <StoreUpdater
             nodes={nodes}

src/container/ZoomPane/index.tsx

@@ -27,6 +27,9 @@ interface ZoomPaneProps {
   zoomActivationKeyCode?: KeyCode;
   preventScrolling?: boolean;
   children: ReactNode;
+  noDragClassName?: string;
+  noZoomClassName?: string;
+  noPanClassName?: string;
 }
 
 const viewChanged = (prevTransform: FlowTransform, eventTransform: any): boolean =>
@@ -40,7 +43,8 @@ const eventToFlowTransform = (eventTransform: any): FlowTransform => ({
   zoom: eventTransform.k,
 });
 
-const hasNoWheelClass = (event: any) => event.target.closest('.nowheel');
+const isWrappedWithClass = (event: any, className: string | undefined) => event.target.closest(`.${className}`);
+// const hasNoWheelClass = (event: any) => event.target.closest('.nowheel');
 
 const selector = (s: ReactFlowState) => ({
   d3Zoom: s.d3Zoom,
@@ -69,6 +73,8 @@ const ZoomPane = ({
   zoomActivationKeyCode,
   preventScrolling = true,
   children,
+  noZoomClassName,
+  noPanClassName,
 }: ZoomPaneProps) => {
   const store = useStoreApi();
   const zoomPane = useRef<HTMLDivElement>(null);
@@ -106,7 +112,7 @@ const ZoomPane = ({
       if (panOnScroll && !zoomActivationKeyPressed) {
         d3Selection
           .on('wheel', (event: any) => {
-            if (hasNoWheelClass(event)) {
+            if (isWrappedWithClass(event, noZoomClassName)) {
               return false;
             }
             event.preventDefault();
@@ -140,7 +146,7 @@ const ZoomPane = ({
       } else if (typeof d3ZoomHandler !== 'undefined') {
         d3Selection
           .on('wheel', (event: any) => {
-            if (!preventScrolling || hasNoWheelClass(event)) {
+            if (!preventScrolling || isWrappedWithClass(event, noZoomClassName)) {
               return null;
             }
 
@@ -158,6 +164,7 @@ const ZoomPane = ({
     zoomActivationKeyPressed,
     zoomOnPinch,
     preventScrolling,
+    noZoomClassName,
   ]);
 
   useEffect(() => {
@@ -230,22 +237,28 @@ const ZoomPane = ({
           return false;
         }
 
-        if (hasNoWheelClass(event) && event.type === 'wheel') {
+        // if the target element is inside the nowheel class, we prevent zooming
+        if (isWrappedWithClass(event, noZoomClassName) && event.type === 'wheel') {
+          return false;
+        }
+
+        // if the target element is inside the nopan class, we prevent panning
+        if (isWrappedWithClass(event, noPanClassName) && event.type !== 'wheel') {
           return false;
         }
 
         // when the target element is a node, we still allow zooming
-        if (
-          (event.target.closest('.react-flow__node') || event.target.closest('.react-flow__edge')) &&
-          event.type !== 'wheel'
-        ) {
-          return false;
-        }
+        // if (
+        //   (event.target.closest('.react-flow__node') || event.target.closest('.react-flow__edge')) &&
+        //   event.type !== 'wheel'
+        // ) {
+        //   return false;
+        // }
 
-        // when the target element is a node selection, we still allow zooming
-        if (event.target.closest('.react-flow__nodesselection') && event.type !== 'wheel') {
-          return false;
-        }
+        // // when the target element is a node selection, we still allow zooming
+        // if (event.target.closest('.react-flow__nodesselection') && event.type !== 'wheel') {
+        //   return false;
+        // }
 
         if (!zoomOnPinch && event.ctrlKey && event.type === 'wheel') {
           return false;