Refactor: CSS handling (#2344)

* refactor(css): only load base styles, add css task, cleanup exports
* style(base): add edge label bg
* refactor(css): use css-utils
* feat(core): add Panel component
* refactor(background): cleanup
* refactor(css-handling): cleanup

.yarnrc.yml

@@ -1 +1,5 @@
 nodeLinker: node-modules
+
+plugins:
+  - path: .yarn/plugins/@yarnpkg/plugin-workspace-tools.cjs
+    spec: "@yarnpkg/plugin-workspace-tools"

babel.config.js

@@ -4,5 +4,4 @@ module.exports = {
     '@babel/preset-typescript',
     '@babel/preset-env',
   ],
-  plugins: ['./tooling/inject-css-babel-plugin'],
 };

examples/nextjs/package.json

@@ -3,7 +3,8 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
-    "dev": "next dev",
+    "dev": "yarn run copystyles && next dev",
+    "copystyles": "cp ../../packages/core/src/styles/theme-default.css ./styles/theme-default.css",
     "build": "next build",
     "start": "next start",
     "lint": "next lint"
@@ -23,6 +24,9 @@
   "devDependencies": {
     "@types/dagre": "^0.7.47",
     "eslint": "8.19.0",
-    "eslint-config-next": "12.2.2"
+    "eslint-config-next": "12.2.2",
+    "postcss-flexbugs-fixes": "^5.0.2",
+    "postcss-nested": "^5.0.6",
+    "postcss-preset-env": "^7.7.2"
   }
 }

examples/nextjs/pages/Backgrounds/index.tsx

@@ -1,12 +1,14 @@
 import React, { FC } from 'react';
 
-import ReactFlow, {
+import {
+  ReactFlow,
   Node,
   ReactFlowProvider,
   useNodesState,
 } from '@react-flow/core';
 
-import Background, {
+import {
+  Background,
   BackgroundProps,
   BackgroundVariant,
 } from '@react-flow/background';

examples/nextjs/pages/ControlledUncontrolled/index.tsx

@@ -1,6 +1,6 @@
 import React from 'react';
-
+import {
-import ReactFlow, {
+  ReactFlow,
   useReactFlow,
   Node,
   Edge,
@@ -8,8 +8,7 @@ import ReactFlow, {
   useNodesState,
   useEdgesState,
 } from '@react-flow/core';
-
+import { Background, BackgroundVariant } from '@react-flow/background';
-import Background, { BackgroundVariant } from '@react-flow/background';
 
 const defaultNodes: Node[] = [
   {

examples/nextjs/pages/CustomConnectionLine/index.tsx

@@ -1,5 +1,6 @@
 import React, { useCallback } from 'react';
-import ReactFlow, {
+import {
+  ReactFlow,
   Node,
   addEdge,
   Connection,
@@ -7,8 +8,7 @@ import ReactFlow, {
   useNodesState,
   useEdgesState,
 } from '@react-flow/core';
-
+import { Background, BackgroundVariant } from '@react-flow/background';
-import Background, { BackgroundVariant } from '@react-flow/background';
 
 import ConnectionLine from './ConnectionLine';
 

examples/nextjs/pages/CustomNode/ColorSelectorNode.tsx

@@ -1,12 +1,11 @@
 import React, { memo, FC, CSSProperties } from 'react';
-
 import {
   Handle,
   Position,
   NodeProps,
   Connection,
   Edge,
-} from '@react-flow/core';
+} from '@react-flow/renderer';
 
 const targetHandleStyle: CSSProperties = { background: '#555' };
 const sourceHandleStyleA: CSSProperties = { ...targetHandleStyle, top: 10 };
@@ -23,7 +22,7 @@ const ColorSelectorNode: FC<NodeProps> = ({ data, isConnectable }) => {
   return (
     <>
       <Handle
-        type='target'
+        type="target"
         position={Position.Left}
         style={targetHandleStyle}
         onConnect={onConnect}
@@ -32,15 +31,15 @@ const ColorSelectorNode: FC<NodeProps> = ({ data, isConnectable }) => {
         Custom Color Picker Node: <strong>{data.color}</strong>
       </div>
       <input
-        className='nodrag'
+        className="nodrag"
-        type='color'
+        type="color"
         onChange={data.onChange}
         defaultValue={data.color}
       />
       <Handle
-        type='source'
+        type="source"
         position={Position.Right}
-        id='a'
+        id="a"
         style={sourceHandleStyleA}
         isConnectable={isConnectable}
         onMouseDown={(e) => {
@@ -48,9 +47,9 @@ const ColorSelectorNode: FC<NodeProps> = ({ data, isConnectable }) => {
         }}
       />
       <Handle
-        type='source'
+        type="source"
         position={Position.Right}
-        id='b'
+        id="b"
         style={sourceHandleStyleB}
         isConnectable={isConnectable}
       />

examples/nextjs/pages/CustomNode/index.tsx

@@ -1,7 +1,8 @@
-import React, { useState, useEffect, MouseEvent } from 'react';
+import React, { useState, useEffect, MouseEvent, ChangeEvent } from 'react';
-import { ChangeEvent } from 'react';
+import {
-
+  ReactFlow,
-import ReactFlow, {
+  MiniMap,
+  Controls,
   addEdge,
   Node,
   ReactFlowInstance,
@@ -10,10 +11,7 @@ import ReactFlow, {
   Connection,
   useNodesState,
   useEdgesState,
-} from '@react-flow/core';
+} from '@react-flow/renderer';
-
-import MiniMap from '@react-flow/minimap';
-import Controls from '@react-flow/controls';
 
 import ColorSelectorNode from './ColorSelectorNode';
 

examples/nextjs/pages/DefaultNodes/index.tsx

@@ -1,13 +1,12 @@
 import React from 'react';
-
+import {
-import ReactFlow, {
+  ReactFlow,
   useReactFlow,
   Node,
   Edge,
   ReactFlowProvider,
 } from '@react-flow/core';
-
+import { Background, BackgroundVariant } from '@react-flow/background';
-import Background, { BackgroundVariant } from '@react-flow/background';
 
 const defaultNodes: Node[] = [
   {

examples/nextjs/pages/DragHandle/index.tsx

@@ -1,5 +1,6 @@
 import React, { MouseEvent } from 'react';
-import ReactFlow, {
+import {
+  ReactFlow,
   Node,
   Edge,
   useNodesState,

examples/nextjs/pages/DragNDrop/index.tsx

@@ -1,5 +1,6 @@
 import React, { useState, DragEvent } from 'react';
-import ReactFlow, {
+import {
+  ReactFlow,
   ReactFlowProvider,
   addEdge,
   ReactFlowInstance,
@@ -9,7 +10,7 @@ import ReactFlow, {
   useNodesState,
   useEdgesState,
 } from '@react-flow/core';
-import Controls from '@react-flow/controls';
+import { Controls } from '@react-flow/controls';
 
 import Sidebar from './Sidebar';
 

examples/nextjs/pages/EdgeTypes/index.tsx

@@ -3,18 +3,18 @@
  */
 import React from 'react';
 
-import ReactFlow, {
+import {
+  ReactFlow,
+  Background,
+  Controls,
+  MiniMap,
   addEdge,
   ReactFlowInstance,
   Connection,
   Edge,
   useNodesState,
   useEdgesState,
-} from '@react-flow/core';
+} from '@react-flow/renderer';
-
-import Background from '@react-flow/background';
-import Controls from '@react-flow/controls';
-import MiniMap from '@react-flow/minimap';
 
 import { getElements } from './utils';
 
@@ -44,10 +44,10 @@ const EdgeTypesFlow = () => {
       onConnect={onConnect}
       minZoom={0.2}
       zoomOnScroll={false}
-      selectionKeyCode='a+s'
+      selectionKeyCode="a+s"
       multiSelectionKeyCode={multiSelectionKeyCode}
       deleteKeyCode={deleteKeyCode}
-      zoomActivationKeyCode='z'
+      zoomActivationKeyCode="z"
     >
       <MiniMap />
       <Controls />

examples/nextjs/pages/Edges/index.tsx

@@ -1,19 +1,18 @@
 import React, { MouseEvent, useCallback } from 'react';
-import ReactFlow, {
+import {
+  Controls,
+  Background,
+  ReactFlow,
+  MiniMap,
   addEdge,
   Connection,
   Edge,
   EdgeTypes,
   MarkerType,
   Node,
-  ReactFlowInstance,
   useEdgesState,
   useNodesState,
-} from '@react-flow/core';
+} from '@react-flow/renderer';
-
-import Controls from '@react-flow/controls';
-import Background from '@react-flow/background';
-import MiniMap from '@react-flow/minimap';
 
 import CustomEdge from './CustomEdge';
 import CustomEdge2 from './CustomEdge2';

examples/nextjs/pages/Empty/index.tsx

@@ -1,6 +1,10 @@
-import React, { MouseEvent, CSSProperties } from 'react';
+import React, { MouseEvent, CSSProperties, useCallback } from 'react';
 
-import ReactFlow, {
+import {
+  ReactFlow,
+  Background,
+  BackgroundVariant,
+  Controls,
   addEdge,
   Node,
   Connection,
@@ -8,10 +12,7 @@ import ReactFlow, {
   useNodesState,
   useEdgesState,
   ReactFlowInstance,
-} from '@react-flow/core';
+} from '@react-flow/renderer';
-
-import Controls from '@react-flow/controls';
-import Background, { BackgroundVariant } from '@react-flow/background';
 
 const onInit = (reactFlowInstance: ReactFlowInstance) =>
   console.log('flow loaded:', reactFlowInstance);
@@ -30,8 +31,10 @@ const EmptyFlow = () => {
   const [nodes, setNodes, onNodesChange] = useNodesState([]);
   const [edges, setEdges, onEdgesChange] = useEdgesState([]);
 
-  const onConnect = (params: Connection | Edge) =>
+  const onConnect = useCallback(
-    setEdges((els) => addEdge(params, els));
+    (params: Connection | Edge) => setEdges((els) => addEdge(params, els)),
+    [setEdges]
+  );
   const addRandomNode = () => {
     const nodeId = (nodes.length + 1).toString();
     const newNode: Node = {
@@ -60,7 +63,7 @@ const EmptyFlow = () => {
       <Controls />
       <Background variant={BackgroundVariant.Lines} />
 
-      <button type='button' onClick={addRandomNode} style={buttonStyle}>
+      <button type="button" onClick={addRandomNode} style={buttonStyle}>
         add node
       </button>
     </ReactFlow>

examples/nextjs/pages/FloatingEdges/index.tsx

@@ -1,15 +1,15 @@
 import React, { useCallback } from 'react';
 
-import ReactFlow, {
+import {
+  ReactFlow,
+  Background,
   addEdge,
   ReactFlowInstance,
   EdgeTypes,
   Connection,
   useNodesState,
   useEdgesState,
-} from '@react-flow/core';
+} from '@react-flow/renderer';
-
-import Background from '@react-flow/background';
 
 import styles from './style.module.css';
 

examples/nextjs/pages/Hidden/index.tsx

@@ -1,6 +1,7 @@
 import React, { useState, useEffect, useCallback } from 'react';
 
-import ReactFlow, {
+import {
+  ReactFlow,
   addEdge,
   Connection,
   Edge,
@@ -9,8 +10,8 @@ import ReactFlow, {
   useEdgesState,
 } from '@react-flow/core';
 
-import Controls from '@react-flow/controls';
+import { Controls } from '@react-flow/controls';
-import MiniMap from '@react-flow/minimap';
+import { MiniMap } from '@react-flow/minimap';
 
 const initialNodes: Node[] = [
   {
@@ -85,14 +86,14 @@ const HiddenFlow = () => {
 
       <div style={{ position: 'absolute', left: 10, top: 10, zIndex: 4 }}>
         <div>
-          <label htmlFor='ishidden'>
+          <label htmlFor="ishidden">
             isHidden
             <input
-              id='ishidden'
+              id="ishidden"
-              type='checkbox'
+              type="checkbox"
               checked={isHidden}
               onChange={(event) => setIsHidden(event.target.checked)}
-              className='react-flow__ishidden'
+              className="react-flow__ishidden"
             />
           </label>
         </div>

examples/nextjs/pages/Interaction/index.tsx

@@ -3,7 +3,8 @@ import React, {
   MouseEvent as ReactMouseEvent,
   WheelEvent,
 } from 'react';
-import ReactFlow, {
+import {
+  ReactFlow,
   addEdge,
   Node,
   Connection,
@@ -14,8 +15,8 @@ import ReactFlow, {
   useEdgesState,
 } from '@react-flow/core';
 
-import Controls from '@react-flow/controls';
+import { Controls } from '@react-flow/controls';
-import MiniMap from '@react-flow/minimap';
+import { MiniMap } from '@react-flow/minimap';
 
 const initialNodes: Node[] = [
   {
@@ -102,151 +103,151 @@ const InteractionFlow = () => {
 
       <div style={{ position: 'absolute', left: 10, top: 10, zIndex: 4 }}>
         <div>
-          <label htmlFor='draggable'>
+          <label htmlFor="draggable">
             nodesDraggable
             <input
-              id='draggable'
+              id="draggable"
-              type='checkbox'
+              type="checkbox"
               checked={isDraggable}
               onChange={(event) => setIsDraggable(event.target.checked)}
-              className='react-flow__draggable'
+              className="react-flow__draggable"
             />
           </label>
         </div>
         <div>
-          <label htmlFor='connectable'>
+          <label htmlFor="connectable">
             nodesConnectable
             <input
-              id='connectable'
+              id="connectable"
-              type='checkbox'
+              type="checkbox"
               checked={isConnectable}
               onChange={(event) => setIsConnectable(event.target.checked)}
-              className='react-flow__connectable'
+              className="react-flow__connectable"
             />
           </label>
         </div>
         <div>
-          <label htmlFor='selectable'>
+          <label htmlFor="selectable">
             elementsSelectable
             <input
-              id='selectable'
+              id="selectable"
-              type='checkbox'
+              type="checkbox"
               checked={isSelectable}
               onChange={(event) => setIsSelectable(event.target.checked)}
-              className='react-flow__selectable'
+              className="react-flow__selectable"
             />
           </label>
         </div>
         <div>
-          <label htmlFor='zoomonscroll'>
+          <label htmlFor="zoomonscroll">
             zoomOnScroll
             <input
-              id='zoomonscroll'
+              id="zoomonscroll"
-              type='checkbox'
+              type="checkbox"
               checked={zoomOnScroll}
               onChange={(event) => setZoomOnScroll(event.target.checked)}
-              className='react-flow__zoomonscroll'
+              className="react-flow__zoomonscroll"
             />
           </label>
         </div>
         <div>
-          <label htmlFor='zoomonpinch'>
+          <label htmlFor="zoomonpinch">
             zoomOnPinch
             <input
-              id='zoomonpinch'
+              id="zoomonpinch"
-              type='checkbox'
+              type="checkbox"
               checked={zoomOnPinch}
               onChange={(event) => setZoomOnPinch(event.target.checked)}
-              className='react-flow__zoomonpinch'
+              className="react-flow__zoomonpinch"
             />
           </label>
         </div>
         <div>
-          <label htmlFor='panonscroll'>
+          <label htmlFor="panonscroll">
             panOnScroll
             <input
-              id='panonscroll'
+              id="panonscroll"
-              type='checkbox'
+              type="checkbox"
               checked={panOnScroll}
               onChange={(event) => setPanOnScroll(event.target.checked)}
-              className='react-flow__panonscroll'
+              className="react-flow__panonscroll"
             />
           </label>
         </div>
         <div>
-          <label htmlFor='panonscrollmode'>
+          <label htmlFor="panonscrollmode">
             panOnScrollMode
             <select
-              id='panonscrollmode'
+              id="panonscrollmode"
               value={panOnScrollMode}
               onChange={(event) =>
                 setPanOnScrollMode(event.target.value as PanOnScrollMode)
               }
-              className='react-flow__panonscrollmode'
+              className="react-flow__panonscrollmode"
             >
-              <option value='free'>free</option>
+              <option value="free">free</option>
-              <option value='horizontal'>horizontal</option>
+              <option value="horizontal">horizontal</option>
-              <option value='vertical'>vertical</option>
+              <option value="vertical">vertical</option>
             </select>
           </label>
         </div>
         <div>
-          <label htmlFor='zoomondbl'>
+          <label htmlFor="zoomondbl">
             zoomOnDoubleClick
             <input
-              id='zoomondbl'
+              id="zoomondbl"
-              type='checkbox'
+              type="checkbox"
               checked={zoomOnDoubleClick}
               onChange={(event) => setZoomOnDoubleClick(event.target.checked)}
-              className='react-flow__zoomondbl'
+              className="react-flow__zoomondbl"
             />
           </label>
         </div>
         <div>
-          <label htmlFor='panondrag'>
+          <label htmlFor="panondrag">
             panOnDrag
             <input
-              id='panondrag'
+              id="panondrag"
-              type='checkbox'
+              type="checkbox"
               checked={panOnDrag}
               onChange={(event) => setPanOnDrag(event.target.checked)}
-              className='react-flow__panondrag'
+              className="react-flow__panondrag"
             />
           </label>
         </div>
         <div>
-          <label htmlFor='capturezoompaneclick'>
+          <label htmlFor="capturezoompaneclick">
             capture onPaneClick
             <input
-              id='capturezoompaneclick'
+              id="capturezoompaneclick"
-              type='checkbox'
+              type="checkbox"
               checked={captureZoomClick}
               onChange={(event) => setCaptureZoomClick(event.target.checked)}
-              className='react-flow__capturezoompaneclick'
+              className="react-flow__capturezoompaneclick"
             />
           </label>
         </div>
         <div>
-          <label htmlFor='capturezoompanescroll'>
+          <label htmlFor="capturezoompanescroll">
             capture onPaneScroll
             <input
-              id='capturezoompanescroll'
+              id="capturezoompanescroll"
-              type='checkbox'
+              type="checkbox"
               checked={captureZoomScroll}
               onChange={(event) => setCaptureZoomScroll(event.target.checked)}
-              className='react-flow__capturezoompanescroll'
+              className="react-flow__capturezoompanescroll"
             />
           </label>
         </div>
         <div>
-          <label htmlFor='captureelementclick'>
+          <label htmlFor="captureelementclick">
             capture onElementClick
             <input
-              id='captureelementclick'
+              id="captureelementclick"
-              type='checkbox'
+              type="checkbox"
               checked={captureElementClick}
               onChange={(event) => setCaptureElementClick(event.target.checked)}
-              className='react-flow__captureelementclick'
+              className="react-flow__captureelementclick"
             />
           </label>
         </div>

examples/nextjs/pages/Layouting/index.tsx

@@ -1,5 +1,7 @@
 import React, { useCallback } from 'react';
-import ReactFlow, {
+import {
+  Controls,
+  ReactFlow,
   ReactFlowProvider,
   addEdge,
   Connection,
@@ -9,9 +11,8 @@ import ReactFlow, {
   useEdgesState,
   MarkerType,
   EdgeMarker,
-} from '@react-flow/core';
+} from '@react-flow/renderer';
 
-import Controls from '@react-flow/controls';
 import dagre from 'dagre';
 
 import initialItems from './initial-elements';

examples/nextjs/pages/MultiFlows/index.tsx

@@ -1,6 +1,8 @@
 import React, { FC } from 'react';
 
-import ReactFlow, {
+import {
+  ReactFlow,
+  Background,
   addEdge,
   Node,
   Edge,
@@ -9,9 +11,7 @@ import ReactFlow, {
   useNodesState,
   useEdgesState,
   MarkerType,
-} from '@react-flow/core';
+} from '@react-flow/renderer';
-
-import Background from '@react-flow/background';
 
 import styles from './multiflows.module.css';
 
@@ -79,8 +79,8 @@ const Flow: FC<{ id: string }> = ({ id }) => {
 
 const MultiFlows: FC = () => (
   <div className={styles.multiflows}>
-    <Flow id='flow-a' />
+    <Flow id="flow-a" />
-    <Flow id='flow-b' />
+    <Flow id="flow-b" />
   </div>
 );
 

examples/nextjs/pages/NestedNodes/index.tsx

@@ -1,6 +1,9 @@
 import React, { useState, MouseEvent, useCallback } from 'react';
-
+import {
-import ReactFlow, {
+  Controls,
+  MiniMap,
+  Background,
+  ReactFlow,
   addEdge,
   useNodesState,
   useEdgesState,
@@ -8,11 +11,7 @@ import ReactFlow, {
   Edge,
   ReactFlowInstance,
   Connection,
-} from '@react-flow/core';
+} from '@react-flow/renderer';
-
-import Controls from '@react-flow/controls';
-import MiniMap from '@react-flow/minimap';
-import Background from '@react-flow/background';
 
 const onNodeDragStop = (_: MouseEvent, node: Node) =>
   console.log('drag stop', node);
@@ -105,9 +104,12 @@ const NestedFlow = () => {
   const [nodes, setNodes, onNodesChange] = useNodesState(initialNodes);
   const [edges, setEdges, onEdgesChange] = useEdgesState(initialEdges);
 
-  const onConnect = useCallback((connection: Connection) => {
+  const onConnect = useCallback(
-    setEdges((eds) => addEdge(connection, eds));
+    (connection: Connection) => {
-  }, []);
+      setEdges((eds) => addEdge(connection, eds));
+    },
+    [setEdges]
+  );
   const onInit = useCallback(
     (reactFlowInstance: ReactFlowInstance) => setRfInstance(reactFlowInstance),
     []

examples/nextjs/pages/NodeTypeChange/index.tsx

@@ -1,6 +1,7 @@
-import React, { CSSProperties } from 'react';
+import React, { CSSProperties, useCallback } from 'react';
 
-import ReactFlow, {
+import {
+  ReactFlow,
   addEdge,
   Node,
   Position,
@@ -42,8 +43,10 @@ const buttonStyle: CSSProperties = {
 const NodeTypeChangeFlow = () => {
   const [nodes, setNodes, onNodesChange] = useNodesState(initialNodes);
   const [edges, setEdges, onEdgesChange] = useEdgesState(initialEdges);
-  const onConnect = (params: Connection | Edge) =>
+  const onConnect = useCallback(
-    setEdges((eds) => addEdge(params, eds));
+    (params: Connection | Edge) => setEdges((eds) => addEdge(params, eds)),
+    [setEdges]
+  );
   const changeType = () => {
     setNodes((nds) =>
       nds.map((node) => {

examples/nextjs/pages/NodeTypesObjectChange/index.tsx

@@ -1,6 +1,7 @@
-import React, { useState, CSSProperties, FC } from 'react';
+import React, { useState, CSSProperties, FC, useCallback } from 'react';
 
-import ReactFlow, {
+import {
+  ReactFlow,
   addEdge,
   Node,
   Position,
@@ -65,10 +66,12 @@ const nodeTypesObjects: NodeTypesObject = {
 
 const NodeTypeChangeFlow = () => {
   const [nodeTypesId, setNodeTypesId] = useState<string>('a');
-  const [nodes, setNodes, onNodesChange] = useNodesState(initialNodes);
+  const [nodes, , onNodesChange] = useNodesState(initialNodes);
   const [edges, setEdges, onEdgesChange] = useEdgesState([]);
-  const onConnect = (params: Connection | Edge) =>
+  const onConnect = useCallback(
-    setEdges((eds) => addEdge(params, eds));
+    (params: Connection | Edge) => setEdges((eds) => addEdge(params, eds)),
+    [setEdges]
+  );
   const changeType = () => setNodeTypesId((nt) => (nt === 'a' ? 'b' : 'a'));
 
   return (

examples/nextjs/pages/Overview/index.tsx

@@ -4,7 +4,8 @@ import React, {
   useCallback,
 } from 'react';
 
-import ReactFlow, {
+import {
+  ReactFlow,
   addEdge,
   Node,
   Viewport,
@@ -17,9 +18,9 @@ import ReactFlow, {
   OnSelectionChangeParams,
 } from '@react-flow/core';
 
-import Controls from '@react-flow/controls';
+import { Controls } from '@react-flow/controls';
-import Background from '@react-flow/background';
+import { Background } from '@react-flow/background';
-import MiniMap from '@react-flow/minimap';
+import { MiniMap } from '@react-flow/minimap';
 
 const onNodeDragStart = (_: ReactMouseEvent, node: Node, nodes: Node[]) =>
   console.log('drag start', node, nodes);

examples/nextjs/pages/Provider/index.tsx

@@ -1,5 +1,7 @@
-import React, { MouseEvent } from 'react';
+import React, { MouseEvent, useCallback } from 'react';
-import ReactFlow, {
+import {
+  ReactFlow,
+  Controls,
   ReactFlowProvider,
   addEdge,
   Node,
@@ -9,8 +11,7 @@ import ReactFlow, {
   useNodesState,
   useEdgesState,
   ReactFlowInstance,
-} from '@react-flow/core';
+} from '@react-flow/renderer';
-import Controls from '@react-flow/controls';
 
 import Sidebar from './Sidebar';
 
@@ -40,8 +41,10 @@ const initialEdges: Edge[] = [
 const ProviderFlow = () => {
   const [nodes, , onNodesChange] = useNodesState(initialNodes);
   const [edges, setEdges, onEdgesChange] = useEdgesState(initialEdges);
-  const onConnect = (params: Edge | Connection) =>
+  const onConnect = useCallback(
-    setEdges((els) => addEdge(params, els));
+    (params: Edge | Connection) => setEdges((els) => addEdge(params, els)),
+    [setEdges]
+  );
 
   return (
     <div className={styles.providerflow}>

examples/nextjs/pages/SaveRestore/index.tsx

@@ -1,5 +1,6 @@
 import React, { useCallback } from 'react';
-import ReactFlow, {
+import {
+  ReactFlow,
   ReactFlowProvider,
   Node,
   addEdge,
@@ -8,7 +9,6 @@ import ReactFlow, {
   useNodesState,
   useEdgesState,
 } from '@react-flow/core';
-
 import Controls from './Controls';
 
 const initialNodes: Node[] = [

examples/nextjs/pages/Stress/index.tsx

@@ -1,5 +1,6 @@
 import React, { useState, CSSProperties, useCallback } from 'react';
-import ReactFlow, {
+import {
+  ReactFlow,
   ReactFlowInstance,
   Edge,
   Node,
@@ -10,10 +11,9 @@ import ReactFlow, {
   applyEdgeChanges,
   EdgeChange,
 } from '@react-flow/core';
-
+import { Controls } from '@react-flow/controls';
-import Controls from '@react-flow/controls';
+import { Background } from '@react-flow/background';
-import Background from '@react-flow/background';
+import { MiniMap } from '@react-flow/minimap';
-import MiniMap from '@react-flow/minimap';
 
 import { getNodesAndEdges } from './utils';
 

examples/nextjs/pages/Subflow/index.tsx

@@ -1,6 +1,6 @@
 import React, { useState, MouseEvent, useCallback } from 'react';
-
+import {
-import ReactFlow, {
+  ReactFlow,
   addEdge,
   Node,
   Edge,
@@ -10,10 +10,9 @@ import ReactFlow, {
   useNodesState,
   useEdgesState,
 } from '@react-flow/core';
-
+import { Controls } from '@react-flow/controls';
-import Controls from '@react-flow/controls';
+import { Background } from '@react-flow/background';
-import Background from '@react-flow/background';
+import { MiniMap } from '@react-flow/minimap';
-import MiniMap from '@react-flow/minimap';
 
 import DebugNode from './DebugNode';
 

examples/nextjs/pages/Switch/index.tsx

@@ -1,5 +1,6 @@
 import React, { MouseEvent, useCallback } from 'react';
-import ReactFlow, {
+import {
+  ReactFlow,
   addEdge,
   Node,
   Connection,

examples/nextjs/pages/TouchDevice/index.tsx

@@ -1,5 +1,6 @@
 import React, { useCallback } from 'react';
-import ReactFlow, {
+import {
+  ReactFlow,
   Node,
   Edge,
   useNodesState,

examples/nextjs/pages/Undirectional/index.tsx

@@ -1,6 +1,7 @@
 import React, { MouseEvent, useCallback } from 'react';
 
-import ReactFlow, {
+import {
+  ReactFlow,
   useReactFlow,
   NodeTypes,
   addEdge,

examples/nextjs/pages/UpdatableEdge/index.tsx

@@ -1,5 +1,6 @@
 import React, { useState, useCallback } from 'react';
-import ReactFlow, {
+import {
+  ReactFlow,
   updateEdge,
   addEdge,
   applyNodeChanges,
@@ -13,7 +14,7 @@ import ReactFlow, {
   HandleType,
 } from '@react-flow/core';
 
-import Controls from '@react-flow/controls';
+import { Controls } from '@react-flow/controls';
 
 const initialNodes: Node[] = [
   {

examples/nextjs/pages/UpdateNode/index.tsx

@@ -1,5 +1,6 @@
 import React, { useEffect, useState } from 'react';
-import ReactFlow, {
+import {
+  ReactFlow,
   Node,
   Edge,
   useNodesState,

examples/nextjs/pages/UseReactFlow/index.tsx

@@ -1,6 +1,8 @@
 import React, { useCallback, MouseEvent, useEffect } from 'react';
-
+import {
-import ReactFlow, {
+  Background,
+  MiniMap,
+  ReactFlow,
   Node,
   addEdge,
   useReactFlow,
@@ -9,10 +11,7 @@ import ReactFlow, {
   Edge,
   useNodesState,
   useEdgesState,
-} from '@react-flow/core';
+} from '@react-flow/renderer';
-
-import Background from '@react-flow/background';
-import MiniMap from '@react-flow/minimap';
 
 const initialNodes: Node[] = [
   {

examples/nextjs/pages/UseUpdateNodeInternals/index.tsx

@@ -1,6 +1,6 @@
 import React, { useCallback, CSSProperties, MouseEvent } from 'react';
-
+import {
-import ReactFlow, {
+  ReactFlow,
   NodeTypes,
   addEdge,
   useReactFlow,
@@ -13,6 +13,7 @@ import ReactFlow, {
   useNodesState,
   useEdgesState,
 } from '@react-flow/core';
+
 import CustomNode from './CustomNode';
 
 const initialHandleCount = 1;
@@ -47,8 +48,10 @@ const getId = (): string => `${id++}`;
 const UpdateNodeInternalsFlow = () => {
   const [nodes, setNodes, onNodesChange] = useNodesState(initialNodes);
   const [edges, setEdges, onEdgesChange] = useEdgesState([]);
-  const onConnect = (params: Edge | Connection) =>
+  const onConnect = useCallback(
-    setEdges((els) => addEdge(params, els));
+    (params: Edge | Connection) => setEdges((els) => addEdge(params, els)),
+    [setEdges]
+  );
 
   const updateNodeInternals = useUpdateNodeInternals();
   const { project } = useReactFlow();

examples/nextjs/pages/Validation/index.tsx

@@ -1,5 +1,6 @@
 import React, { FC, useCallback, useState } from 'react';
-import ReactFlow, {
+import {
+  ReactFlow,
   addEdge,
   Handle,
   Connection,
@@ -28,7 +29,7 @@ const CustomInput: FC<NodeProps> = () => (
   <>
     <div>Only connectable with B</div>
     <Handle
-      type='source'
+      type="source"
       position={Position.Right}
       isValidConnection={isValidConnection}
     />
@@ -38,13 +39,13 @@ const CustomInput: FC<NodeProps> = () => (
 const CustomNode: FC<NodeProps> = ({ id }) => (
   <>
     <Handle
-      type='target'
+      type="target"
       position={Position.Left}
       isValidConnection={isValidConnection}
     />
     <div>{id}</div>
     <Handle
-      type='source'
+      type="source"
       position={Position.Right}
       isValidConnection={isValidConnection}
     />

examples/nextjs/pages/_app.tsx

@@ -2,6 +2,13 @@ import React from 'react';
 import { useRouter } from 'next/router';
 import '../styles/globals.css';
 
+// Unfortunately this doesn't work because preconsruct clears the dist folder and there is
+// no way to hook into the watch process to copy the files back to the dist folder
+// import '@react-flow/core/dist/theme-default.css';
+
+// this is a workaround for testing the theme. See explanation above.
+// import '../styles/theme-default.css';
+
 const routes = [
   '/',
   '/Backgrounds',

examples/nextjs/pages/index.tsx

@@ -1,15 +1,16 @@
 import React, { MouseEvent } from 'react';
 
-import ReactFlow, {
+import {
+  ReactFlow,
   ReactFlowProvider,
   Node,
   Edge,
   useReactFlow,
 } from '@react-flow/core';
 
-import Minimap from '@react-flow/minimap';
+import { MiniMap } from '@react-flow/minimap';
-import Background, { BackgroundVariant } from '@react-flow/background';
+import { Background, BackgroundVariant } from '@react-flow/background';
-import Controls from '@react-flow/controls';
+import { Controls } from '@react-flow/controls';
 
 const onNodeDrag = (_: MouseEvent, node: Node) => console.log('drag', node);
 const onNodeDragStop = (_: MouseEvent, node: Node) =>
@@ -95,7 +96,7 @@ const BasicFlow = () => {
       selectNodesOnDrag={false}
     >
       <Background variant={BackgroundVariant.Lines} />
-      <Minimap />
+      <MiniMap />
       <Controls />
 
       <div style={{ position: 'absolute', right: 10, top: 10, zIndex: 4 }}>

examples/nextjs/pages/theme-default.css

@@ -3,6 +3,7 @@
   &:focus,
   &:focus-visible {
     outline: none;
+
     .react-flow__edge-path {
       stroke: #555;
     }
@@ -29,10 +30,6 @@
   font-size: 10px;
 }
 
-.react-flow__edge-textbg {
-  fill: white;
-}
-
 .react-flow__connection-path {
   stroke: #b1b1b7;
   stroke-width: 1;

examples/nextjs/postcss.config.json

@@ -0,0 +1,18 @@
+{
+  "plugins": [
+    "postcss-nested",
+    "postcss-flexbugs-fixes",
+    [
+      "postcss-preset-env",
+      {
+        "autoprefixer": {
+          "flexbox": "no-2009"
+        },
+        "stage": 3,
+        "features": {
+          "custom-properties": false
+        }
+      }
+    ]
+  ]
+}

examples/nextjs/styles/theme-default.css

@@ -0,0 +1,106 @@
+.react-flow__edge {
+  &.selected,
+  &:focus,
+  &:focus-visible {
+    outline: none;
+
+    .react-flow__edge-path {
+      stroke: #555;
+    }
+  }
+
+  &.animated path {
+    stroke-dasharray: 5;
+    animation: dashdraw 0.5s linear infinite;
+  }
+
+  &.updating {
+    .react-flow__edge-path {
+      stroke: #777;
+    }
+  }
+}
+
+.react-flow__edge-path {
+  stroke: #b1b1b7;
+  stroke-width: 1;
+}
+
+.react-flow__edge-text {
+  font-size: 10px;
+}
+
+.react-flow__connection-path {
+  stroke: #b1b1b7;
+  stroke-width: 1;
+}
+
+.react-flow__node-default,
+.react-flow__node-input,
+.react-flow__node-output,
+.react-flow__node-group {
+  padding: 10px;
+  border-radius: 3px;
+  width: 150px;
+  font-size: 12px;
+  color: #222;
+  text-align: center;
+  border-width: 1px;
+  border-style: solid;
+  border-color: #1a192b;
+
+  &.selected,
+  &:focus,
+  &:focus-visible {
+    box-shadow: 0 0 0 0.5px #1a192b;
+    outline: none;
+  }
+
+  .react-flow__handle {
+    background: #1a192b;
+  }
+}
+
+.react-flow__node-default.selectable,
+.react-flow__node-input.selectable,
+.react-flow__node-output.selectable,
+.react-flow__node-group.selectable {
+  &:hover {
+    box-shadow: 0 1px 4px 1px rgba(0, 0, 0, 0.08);
+  }
+
+  &.selected,
+  &:focus,
+  &:focus-visible {
+    outline: none;
+    box-shadow: 0 0 0 0.5px #1a192b;
+  }
+}
+
+.react-flow__node-group {
+  background: rgba(240, 240, 240, 0.25);
+  border-color: #1a192b;
+}
+
+.react-flow__nodesselection-rect,
+.react-flow__selection {
+  background: rgba(0, 89, 220, 0.08);
+  border: 1px dotted rgba(0, 89, 220, 0.8);
+
+  &:focus,
+  &:focus-visible {
+    outline: none;
+  }
+}
+
+.react-flow__handle {
+  width: 6px;
+  height: 6px;
+  background: #555;
+  border: 1px solid white;
+  border-radius: 100%;
+
+  &.connectable {
+    cursor: crosshair;
+  }
+}

package.json

@@ -10,10 +10,11 @@
   ],
   "private": true,
   "scripts": {
+    "postinstall": "preconstruct dev && yarn run packages",
     "dev": "preconstruct watch",
     "dev:example": "cd examples/nextjs && yarn dev",
-    "postinstall": "preconstruct dev",
+    "build": "preconstruct build && yarn run packages",
-    "build": "preconstruct build",
+    "packages": "yarn workspaces foreach --include '@react-flow/**' run build",
     "test:all": "yarn test:chrome && yarn test:firefox",
     "test:chrome": "cypress run --browser chrome",
     "test:firefox": "cypress run --browser firefox",
@@ -29,10 +30,7 @@
     "@babel/preset-react": "^7.17.12",
     "@babel/preset-typescript": "^7.17.12",
     "@preconstruct/cli": "^2.1.8",
-    "autoprefixer": "^10.4.7",
     "cypress": "^10.3.1",
-    "postcss": "^8.4.14",
-    "postcss-nested": "^5.0.6",
     "start-server-and-test": "^1.14.0",
     "typescript": "^4.7.4"
   },

packages/background/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@react-flow/background",
   "version": "11.0.0",
-  "description": "A background component for React Flow",
+  "description": "Background component with different variants for React Flow",
   "main": "dist/react-flow-background.cjs.js",
   "module": "dist/react-flow-background.esm.js",
   "license": "MIT",

packages/background/src/Background.tsx

@@ -1,11 +1,11 @@
-import React, { memo, FC, useRef, useId } from 'react';
+import React, { memo, useRef, useId } from 'react';
 import cc from 'classcat';
 import { useStore, ReactFlowState } from '@react-flow/core';
 
 import { BackgroundProps, BackgroundVariant } from './types';
-import { DotPattern, LinePattern } from './utils';
+import { DotPattern, LinePattern } from './Patterns';
 
-const defaultColors = {
+const defaultColor = {
   [BackgroundVariant.Dots]: '#91919a',
   [BackgroundVariant.Lines]: '#eee',
   [BackgroundVariant.Cross]: '#e2e2e2',
@@ -34,8 +34,8 @@ function Background({
   const patternId = useId();
   const [tX, tY, tScale] = useStore(transformSelector);
 
-  const patternColor = color ? color : defaultColors[variant];
+  const patternColor = color || defaultColor[variant];
-  const patternSize = size ? size : defaultSize[variant];
+  const patternSize = size || defaultSize[variant];
   const isDots = variant === BackgroundVariant.Dots;
   const isCross = variant === BackgroundVariant.Cross;
   const gapXY: [number, number] = Array.isArray(gap) ? gap : [gap, gap];
@@ -55,15 +55,14 @@ function Background({
 
   return (
     <svg
-      className={cc([
+      className={cc(['react-flow__background', className])}
-        'react-flow__background',
-        'react-flow__container',
-        className,
-      ])}
       style={{
         ...style,
+        position: 'absolute',
         width: '100%',
         height: '100%',
+        top: 0,
+        left: 0,
       }}
       ref={ref}
     >

packages/background/src/index.tsx

@@ -1,2 +1,2 @@
-export { default as Background, default } from './Background';
+export { default as Background } from './Background';
 export * from './types';

packages/controls/package.json

@@ -1,12 +1,13 @@
 {
   "name": "@react-flow/controls",
   "version": "11.0.0",
-  "description": "A component that controls the viewport of React Flow",
+  "description": "A component to control the viewport of a React Flow instance",
   "main": "dist/react-flow-controls.cjs.js",
   "module": "dist/react-flow-controls.esm.js",
   "license": "MIT",
   "dependencies": {
-    "@react-flow/core": "11.0.0",
+    "@react-flow/core": "^11.0.0",
+    "@react-flow/css-utils": "^11.0.0",
     "classcat": "^5.0.3"
   },
   "peerDependencies": {

packages/controls/src/ControlButton.tsx

@@ -0,0 +1,22 @@
+import React, { FC, PropsWithChildren } from 'react';
+import cc from 'classcat';
+
+import { ControlButtonProps } from './types';
+
+const ControlButton: FC<PropsWithChildren<ControlButtonProps>> = ({
+  children,
+  className,
+  ...rest
+}) => (
+  <button
+    type="button"
+    className={cc(['react-flow__controls-button', className])}
+    {...rest}
+  >
+    {children}
+  </button>
+);
+
+ControlButton.displayName = 'ControlButton';
+
+export default ControlButton;

packages/controls/src/Controls.tsx

@@ -5,31 +5,21 @@ import {
   useStoreApi,
   useReactFlow,
   ReactFlowState,
+  Panel,
 } from '@react-flow/core';
+import { injectStyle } from '@react-flow/css-utils';
 
 import PlusIcon from './Icons/Plus';
 import MinusIcon from './Icons/Minus';
 import FitviewIcon from './Icons/FitView';
 import LockIcon from './Icons/Lock';
 import UnlockIcon from './Icons/Unlock';
+import ControlButton from './ControlButton';
+import baseStyle from './style';
 
-import { ControlProps, ControlButtonProps } from './types';
+import { ControlProps } from './types';
 
-import './style.css';
+injectStyle(baseStyle);
-
-export const ControlButton: FC<PropsWithChildren<ControlButtonProps>> = ({
-  children,
-  className,
-  ...rest
-}) => (
-  <button
-    type='button'
-    className={cc(['react-flow__controls-button', className])}
-    {...rest}
-  >
-    {children}
-  </button>
-);
 
 const isInteractiveSelector = (s: ReactFlowState) =>
   s.nodesDraggable && s.nodesConnectable && s.elementsSelectable;
@@ -46,6 +36,7 @@ const Controls: FC<PropsWithChildren<ControlProps>> = ({
   onInteractiveChange,
   className,
   children,
+  position = 'bottom-left',
 }) => {
   const store = useStoreApi();
   const [isVisible, setIsVisible] = useState<boolean>(false);
@@ -86,22 +77,26 @@ const Controls: FC<PropsWithChildren<ControlProps>> = ({
   };
 
   return (
-    <div className={cc(['react-flow__controls', className])} style={style}>
+    <Panel
+      className={cc(['react-flow__controls', className])}
+      position={position}
+      style={style}
+    >
       {showZoom && (
         <>
           <ControlButton
             onClick={onZoomInHandler}
-            className='react-flow__controls-zoomin'
+            className="react-flow__controls-zoomin"
-            title='zoom in'
+            title="zoom in"
-            aria-label='zoom in'
+            aria-label="zoom in"
           >
             <PlusIcon />
           </ControlButton>
           <ControlButton
             onClick={onZoomOutHandler}
-            className='react-flow__controls-zoomout'
+            className="react-flow__controls-zoomout"
-            title='zoom out'
+            title="zoom out"
-            aria-label='zoom out'
+            aria-label="zoom out"
           >
             <MinusIcon />
           </ControlButton>
@@ -109,26 +104,26 @@ const Controls: FC<PropsWithChildren<ControlProps>> = ({
       )}
       {showFitView && (
         <ControlButton
-          className='react-flow__controls-fitview'
+          className="react-flow__controls-fitview"
           onClick={onFitViewHandler}
-          title='fit view'
+          title="fit view"
-          aria-label='fit view'
+          aria-label="fit view"
         >
           <FitviewIcon />
         </ControlButton>
       )}
       {showInteractive && (
         <ControlButton
-          className='react-flow__controls-interactive'
+          className="react-flow__controls-interactive"
           onClick={onToggleInteractivity}
-          title='toggle interactivity'
+          title="toggle interactivity"
-          aria-label='toggle interactivity'
+          aria-label="toggle interactivity"
         >
           {isInteractive ? <UnlockIcon /> : <LockIcon />}
         </ControlButton>
       )}
       {children}
-    </div>
+    </Panel>
   );
 };
 

packages/controls/src/index.tsx

@@ -1,3 +1,3 @@
-export { default as default } from './Controls';
+export { default as Controls } from './Controls';
+export { default as ControlButton } from './ControlButton';
 export * from './types';
-export * from './Controls';

packages/controls/src/style.css

@@ -1,32 +0,0 @@
-.react-flow__controls {
-  box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.08);
-  position: absolute;
-  z-index: 5;
-  bottom: 20px;
-  left: 15px;
-
-  &-button {
-    border: none;
-    background: #fefefe;
-    border-bottom: 1px solid #eee;
-    box-sizing: content-box;
-    display: flex;
-    justify-content: center;
-    align-items: center;
-    width: 16px;
-    height: 16px;
-    cursor: pointer;
-    user-select: none;
-    padding: 5px;
-
-    svg {
-      width: 100%;
-      max-width: 12px;
-      max-height: 12px;
-    }
-
-    &:hover {
-      background: #f4f4f4;
-    }
-  }
-}

packages/controls/src/style.ts

@@ -0,0 +1,31 @@
+const style = `
+.react-flow__controls {
+  box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.08);
+}
+
+.react-flow__controls-button {
+  border: none;
+  background: #fefefe;
+  border-bottom: 1px solid #eee;
+  box-sizing: content-box;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  width: 16px;
+  height: 16px;
+  cursor: pointer;
+  user-select: none;
+  padding: 5px;
+}
+
+.react-flow__controls-button svg {
+  width: 100%;
+  max-width: 12px;
+  max-height: 12px;
+}
+
+.react-flow__controls-button:hover {
+  background: #f4f4f4;
+}`;
+
+export default style;

packages/controls/src/types.ts

@@ -1,5 +1,5 @@
 import { ButtonHTMLAttributes, HTMLAttributes } from 'react';
-import { FitViewOptions } from '@react-flow/core';
+import { FitViewOptions, PanelPosition } from '@react-flow/core';
 
 export interface ControlProps extends HTMLAttributes<HTMLDivElement> {
   showZoom?: boolean;
@@ -10,6 +10,7 @@ export interface ControlProps extends HTMLAttributes<HTMLDivElement> {
   onZoomOut?: () => void;
   onFitView?: () => void;
   onInteractiveChange?: (interactiveStatus: boolean) => void;
+  position?: PanelPosition;
 }
 
 export interface ControlButtonProps

packages/core/assets/icons/fitview.svg

@@ -1,3 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 30">
-  <path d="M3.692 4.63c0-.53.4-.938.939-.938h5.215V0H4.708C2.13 0 0 2.054 0 4.63v5.216h3.692V4.631zM27.354 0h-5.2v3.692h5.17c.53 0 .984.4.984.939v5.215H32V4.631A4.624 4.624 0 0027.354 0zm.954 24.83c0 .532-.4.94-.939.94h-5.215v3.768h5.215c2.577 0 4.631-2.13 4.631-4.707v-5.139h-3.692v5.139zm-23.677.94c-.531 0-.939-.4-.939-.94v-5.138H0v5.139c0 2.577 2.13 4.707 4.708 4.707h5.138V25.77H4.631z" />
-</svg>

packages/core/assets/icons/lock.svg

@@ -1,3 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 32">
-  <path d="M21.333 10.667H19.81V7.619C19.81 3.429 16.38 0 12.19 0 8 0 4.571 3.429 4.571 7.619v3.048H3.048A3.056 3.056 0 000 13.714v15.238A3.056 3.056 0 003.048 32h18.285a3.056 3.056 0 003.048-3.048V13.714a3.056 3.056 0 00-3.048-3.047zM12.19 24.533a3.056 3.056 0 01-3.047-3.047 3.056 3.056 0 013.047-3.048 3.056 3.056 0 013.048 3.048 3.056 3.056 0 01-3.048 3.047zm4.724-13.866H7.467V7.619c0-2.59 2.133-4.724 4.723-4.724 2.591 0 4.724 2.133 4.724 4.724v3.048z" />
-</svg>

packages/core/assets/icons/minus.svg

@@ -1,3 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 5">
-  <path d="M0 0h32v4.2H0z"/>
-</svg>

packages/core/assets/icons/plus.svg

@@ -1,3 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
-  <path d="M32 18.133H18.133V32h-4.266V18.133H0v-4.266h13.867V0h4.266v13.867H32z"/>
-</svg>

packages/core/assets/icons/unlock.svg

@@ -1,3 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 25 32">
-  <path d="M21.333 10.667H19.81V7.619C19.81 3.429 16.38 0 12.19 0c-4.114 1.828-1.37 2.133.305 2.438 1.676.305 4.42 2.59 4.42 5.181v3.048H3.047A3.056 3.056 0 000 13.714v15.238A3.056 3.056 0 003.048 32h18.285a3.056 3.056 0 003.048-3.048V13.714a3.056 3.056 0 00-3.048-3.047zM12.19 24.533a3.056 3.056 0 01-3.047-3.047 3.056 3.056 0 013.047-3.048 3.056 3.056 0 013.048 3.048 3.056 3.056 0 01-3.048 3.047z" />
-</svg>

packages/core/package.json

@@ -12,8 +12,12 @@
     "type": "git",
     "url": "https://github.com/wbkd/react-flow.git"
   },
+  "scripts": {
+    "build": "postcss src/styles/*.css --config ../../tooling/postcss.config.json --dir dist"
+  },
   "dependencies": {
     "@babel/runtime": "^7.18.0",
+    "@react-flow/css-utils": "^11.0.0",
     "classcat": "^5.0.3",
     "d3-drag": "^3.0.0",
     "d3-selection": "^3.0.0",
@@ -30,6 +34,11 @@
   ],
   "devDependencies": {
     "@types/d3": "^7.4.0",
-    "@types/react": "^18.0.15"
+    "@types/react": "^18.0.15",
+    "autoprefixer": "^10.4.8",
+    "postcss": "^8.4.14",
+    "postcss-cli": "^10.0.0",
+    "postcss-import": "^14.1.0",
+    "postcss-nested": "^5.0.6"
   }
 }

packages/core/src/components/Attribution/index.tsx

@@ -1,11 +1,11 @@
 import React from 'react';
-import cc from 'classcat';
 
-import { AttributionPosition, ProOptions } from '../../types';
+import Panel from '../Panel';
+import { PanelPosition, ProOptions } from '../../types';
 
 type AttributionProps = {
   proOptions?: ProOptions;
-  position?: AttributionPosition;
+  position?: PanelPosition;
 };
 
 function Attribution({ proOptions, position = 'bottom-right' }: AttributionProps) {
@@ -13,17 +13,16 @@ function Attribution({ proOptions, position = 'bottom-right' }: AttributionProps
     return null;
   }
 
-  const positionClasses = `${position}`.split('-');
-
   return (
-    <div
+    <Panel
-      className={cc(['react-flow__attribution', ...positionClasses])}
+      position={position}
+      className="react-flow__attribution"
       data-message="Please only hide this attribution when you are subscribed to React Flow Pro: https://pro.reactflow.dev"
     >
       <a href="https://reactflow.dev" target="_blank" rel="noopener noreferrer" aria-label="React Flow attribution">
         React Flow
       </a>
-    </div>
+    </Panel>
   );
 }
 

packages/core/src/components/ConnectionLine/index.tsx

@@ -113,7 +113,7 @@ export default ({
 
   return (
     <g className="react-flow__connection">
-      <path d={dAttr} className="react-flow__connection-path" style={connectionLineStyle} />
+      <path d={dAttr} fill="none" className="react-flow__connection-path" style={connectionLineStyle} />
     </g>
   );
 };

packages/core/src/components/Edges/BaseEdge.tsx

@@ -32,7 +32,14 @@ export default ({
 
   return (
     <>
-      <path style={style} d={path} className="react-flow__edge-path" markerEnd={markerEnd} markerStart={markerStart} />
+      <path
+        style={style}
+        d={path}
+        fill="none"
+        className="react-flow__edge-path"
+        markerEnd={markerEnd}
+        markerStart={markerStart}
+      />
       {text}
     </>
   );

packages/core/src/components/Panel/index.tsx

@@ -0,0 +1,21 @@
+import React, { HTMLAttributes, ReactNode } from 'react';
+import cc from 'classcat';
+
+import { PanelPosition } from '../../types';
+
+export type PanelProps = HTMLAttributes<HTMLDivElement> & {
+  position: PanelPosition;
+  children: ReactNode;
+};
+
+function Panel({ position, children, className, ...rest }: PanelProps) {
+  const positionClasses = `${position}`.split('-');
+
+  return (
+    <div className={cc(['react-flow__panel', className, ...positionClasses])} {...rest}>
+      {children}
+    </div>
+  );
+}
+
+export default Panel;

packages/core/src/container/FlowRenderer/index.tsx

@@ -9,6 +9,7 @@ import UserSelection from '../../components/UserSelection';
 import NodesSelection from '../../components/NodesSelection';
 
 import { ReactFlowState } from '../../types';
+import { containerStyle } from '../../styles';
 
 export type FlowRendererProps = Omit<
   GraphViewProps,
@@ -104,13 +105,14 @@ const FlowRenderer = ({
         />
       )}
       <div
-        className="react-flow__pane react-flow__container"
+        className="react-flow__pane"
         onClick={onClick}
         onMouseEnter={onPaneMouseEnter}
         onMouseMove={onPaneMouseMove}
         onMouseLeave={onPaneMouseLeave}
         onContextMenu={onContextMenu}
         onWheel={onWheel}
+        style={containerStyle}
       />
     </ZoomPane>
   );

packages/core/src/container/NodeRenderer/index.tsx

@@ -3,6 +3,7 @@ import shallow from 'zustand/shallow';
 
 import useVisibleNodes from '../../hooks/useVisibleNodes';
 import { useStore } from '../../store';
+import { containerStyle } from '../../styles';
 import { NodeMouseHandler, NodeTypesWrapped, Position, ReactFlowState, WrapNodeProps } from '../../types';
 import { internalsSymbol } from '../../utils';
 
@@ -61,7 +62,7 @@ const NodeRenderer = (props: NodeRendererProps) => {
   }, []);
 
   return (
-    <div className="react-flow__nodes react-flow__container">
+    <div className="react-flow__nodes" style={containerStyle}>
       {nodes.map((node) => {
         let nodeType = node.type || 'default';
 

packages/core/src/container/ReactFlow/index.tsx

@@ -1,5 +1,6 @@
-import React, { forwardRef, useId } from 'react';
+import React, { CSSProperties, forwardRef, useId } from 'react';
 import cc from 'classcat';
+import { injectStyle } from '@react-flow/css-utils';
 
 import Attribution from '../../components/Attribution';
 import { BezierEdge, SmoothStepEdge, StepEdge, StraightEdge, SimpleBezierEdge } from '../../components/Edges';
@@ -8,9 +9,9 @@ import InputNode from '../../components/Nodes/InputNode';
 import OutputNode from '../../components/Nodes/OutputNode';
 import SelectionListener from '../../components/SelectionListener';
 import StoreUpdater from '../../components/StoreUpdater';
+import baseStyle from '../../styles/base';
 
-import '../../style.css';
+injectStyle(baseStyle);
-import '../../theme-default.css';
 
 import {
   ConnectionLineType,
@@ -48,6 +49,13 @@ const defaultEdgeTypes: EdgeTypes = {
 const initSnapGrid: [number, number] = [15, 15];
 const initDefaultViewport: Viewport = { x: 0, y: 0, zoom: 1 };
 
+const wrapperStyle: CSSProperties = {
+  width: '100%',
+  height: '100%',
+  position: 'relative',
+  overflow: 'hidden',
+};
+
 const ReactFlow = forwardRef<ReactFlowRefType, ReactFlowProps>(
   (
     {
@@ -143,6 +151,7 @@ const ReactFlow = forwardRef<ReactFlowRefType, ReactFlowProps>(
       defaultEdgeOptions,
       elevateEdgesOnSelect = false,
       disableKeyboardA11y = false,
+      style,
       ...rest
     },
     ref
@@ -152,7 +161,7 @@ const ReactFlow = forwardRef<ReactFlowRefType, ReactFlowProps>(
     const rfId = useId();
 
     return (
-      <div {...rest} ref={ref} className={cc(['react-flow', className])}>
+      <div {...rest} style={{ ...style, ...wrapperStyle }} ref={ref} className={cc(['react-flow', className])}>
         <Wrapper>
           <GraphView
             onInit={onInit}

packages/core/src/container/ZoomPane/index.tsx

@@ -9,6 +9,7 @@ import useResizeHandler from '../../hooks/useResizeHandler';
 import { useStore, useStoreApi } from '../../store';
 import { Viewport, PanOnScrollMode, ReactFlowState } from '../../types';
 import { FlowRendererProps } from '../FlowRenderer';
+import { containerStyle } from '../../styles';
 
 type ZoomPaneProps = Omit<
   FlowRendererProps,
@@ -253,7 +254,7 @@ const ZoomPane = ({
   ]);
 
   return (
-    <div className="react-flow__renderer react-flow__container" ref={zoomPane}>
+    <div className="react-flow__renderer" ref={zoomPane} style={containerStyle}>
       {children}
     </div>
   );

packages/core/src/index.ts

@@ -1,7 +1,4 @@
-import ReactFlow from './container/ReactFlow';
+export { default as ReactFlow } from './container/ReactFlow';
-
-export default ReactFlow;
-
 export { default as Handle } from './components/Handle';
 export { default as EdgeText } from './components/Edges/EdgeText';
 export { default as StraightEdge } from './components/Edges/StraightEdge';
@@ -18,7 +15,7 @@ export {
 } from './components/Edges/SimpleBezierEdge';
 export { default as SmoothStepEdge, getSmoothStepPath } from './components/Edges/SmoothStepEdge';
 
-export { internalsSymbol } from './utils';
+export { internalsSymbol, rectToBox, boxToRect, getBoundsOfRects } from './utils';
 export {
   isNode,
   isEdge,
@@ -33,6 +30,7 @@ export {
 export { applyNodeChanges, applyEdgeChanges } from './utils/changes';
 export { getMarkerEnd, getCenter as getEdgeCenter } from './components/Edges/utils';
 export { default as ReactFlowProvider } from './components/ReactFlowProvider';
+export { default as Panel } from './components/Panel';
 
 export { default as useReactFlow } from './hooks/useReactFlow';
 export { default as useUpdateNodeInternals } from './hooks/useUpdateNodeInternals';

packages/core/src/style.css

@@ -1,180 +0,0 @@
-.react-flow {
-  width: 100%;
-  height: 100%;
-  position: relative;
-  overflow: hidden;
-}
-
-.react-flow__container {
-  position: absolute;
-  width: 100%;
-  height: 100%;
-  top: 0;
-  left: 0;
-}
-
-.react-flow__pane {
-  z-index: 1;
-}
-
-.react-flow__viewport {
-  transform-origin: 0 0;
-  z-index: 2;
-  pointer-events: none;
-}
-
-.react-flow__renderer {
-  z-index: 4;
-}
-
-.react-flow__selectionpane {
-  z-index: 5;
-}
-
-.react-flow .react-flow__edges {
-  pointer-events: none;
-  overflow: visible;
-}
-
-.react-flow .react-flow__connectionline {
-  z-index: 1001;
-}
-
-.react-flow__edge {
-  pointer-events: visibleStroke;
-
-  &.inactive {
-    pointer-events: none;
-  }
-}
-
-@keyframes dashdraw {
-  from {
-    stroke-dashoffset: 10;
-  }
-}
-
-.react-flow__edge-path {
-  fill: none;
-}
-
-.react-flow__edge-textwrapper {
-  pointer-events: all;
-}
-
-.react-flow__edge-text {
-  pointer-events: none;
-  user-select: none;
-}
-
-.react-flow__connection {
-  pointer-events: none;
-
-  .animated {
-    stroke-dasharray: 5;
-    animation: dashdraw 0.5s linear infinite;
-  }
-}
-
-.react-flow__connection-path {
-  fill: none;
-}
-
-.react-flow__nodes {
-  pointer-events: none;
-  transform-origin: 0 0;
-}
-
-.react-flow__node {
-  position: absolute;
-  user-select: none;
-  pointer-events: all;
-  transform-origin: 0 0;
-  box-sizing: border-box;
-}
-
-.react-flow__nodesselection {
-  z-index: 3;
-  transform-origin: left top;
-  pointer-events: none;
-
-  &-rect {
-    position: absolute;
-    pointer-events: all;
-    cursor: grab;
-  }
-}
-
-.react-flow__handle {
-  position: absolute;
-  pointer-events: none;
-
-  &.connectable {
-    pointer-events: all;
-  }
-}
-
-.react-flow__handle-bottom {
-  top: auto;
-  left: 50%;
-  bottom: -4px;
-  transform: translate(-50%, 0);
-}
-
-.react-flow__handle-top {
-  left: 50%;
-  top: -4px;
-  transform: translate(-50%, 0);
-}
-
-.react-flow__handle-left {
-  top: 50%;
-  left: -4px;
-  transform: translate(0, -50%);
-}
-
-.react-flow__handle-right {
-  right: -4px;
-  top: 50%;
-  transform: translate(0, -50%);
-}
-
-.react-flow__edgeupdater {
-  cursor: move;
-  pointer-events: all;
-}
-
-.react-flow__attribution {
-  font-size: 10px;
-  position: absolute;
-  z-index: 1000;
-  background: rgba(255, 255, 255, 0.5);
-  padding: 2px 3px;
-  color: #999;
-
-  a {
-    color: #555;
-    text-decoration: none;
-  }
-
-  &.top {
-    top: 0;
-  }
-
-  &.bottom {
-    bottom: 0;
-  }
-
-  &.left {
-    left: 0;
-  }
-
-  &.right {
-    right: 0;
-  }
-
-  &.center {
-    left: 50%;
-    transform: translateX(-50%);
-  }
-}

packages/core/src/styles/base.ts

@@ -0,0 +1,226 @@
+const style = `
+.react-flow__container {
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  top: 0;
+  left: 0;
+}
+
+.react-flow__pane {
+  z-index: 1;
+}
+
+.react-flow__viewport {
+  transform-origin: 0 0;
+  z-index: 2;
+  pointer-events: none;
+}
+
+.react-flow__renderer {
+  z-index: 4;
+}
+
+.react-flow__selectionpane {
+  z-index: 5;
+}
+
+.react-flow__nodesselection-rect,
+.react-flow__selection {
+  background: rgba(150, 150, 180, 0.1);
+  border: 1px dotted rgba(155, 155, 155, 0.8);
+}
+
+.react-flow__nodesselection-rect:focus,
+.react-flow__nodesselection-rect:focus-visible {
+  outline: none;
+}
+
+.react-flow .react-flow__edges {
+  pointer-events: none;
+  overflow: visible;
+}
+
+.react-flow__connection {
+  pointer-events: none;
+}
+
+.react-flow__connection.animated {
+  stroke-dasharray: 5;
+  animation: dashdraw 0.5s linear infinite;
+}
+
+.react-flow .react-flow__connectionline {
+  z-index: 1001;
+}
+
+.react-flow__connectionline path, .react-flow__edge path {
+  fill: none;
+}
+
+.react-flow__edge-path, .react-flow__connection-path {
+  stroke: #b1b1b7;
+  stroke-width: 1;
+}
+
+.react-flow__edge {
+  pointer-events: visibleStroke;
+}
+
+.react-flow__edge.animated path {
+  stroke-dasharray: 5;
+  animation: dashdraw 0.5s linear infinite;
+}
+
+.react-flow__edge.inactive {
+  pointer-events: none;
+}
+
+.react-flow__edge.selected, .react-flow__edge:focus, .react-flow__edge:focus-visible {
+  outline: none;
+}
+
+.react-flow__edge.selected .react-flow__edge-path,
+.react-flow__edge:focus .react-flow__edge-path,
+.react-flow__edge:focus-visible .react-flow__edge-path {
+  stroke: #555;
+}
+
+@keyframes dashdraw {
+  from {
+    stroke-dashoffset: 10;
+  }
+}
+
+.react-flow__edge-textwrapper {
+  pointer-events: all;
+}
+
+.react-flow__edge-text {
+  pointer-events: none;
+  user-select: none;
+}
+
+.react-flow__edge-textbg {
+  fill: white;
+}
+
+.react-flow__nodes {
+  pointer-events: none;
+  transform-origin: 0 0;
+}
+
+.react-flow__node {
+  position: absolute;
+  user-select: none;
+  pointer-events: all;
+  transform-origin: 0 0;
+  box-sizing: border-box;
+  background-color: white;
+  cursor: grab;
+  border: 1px solid #bbb;
+}
+
+.react-flow__node.selected,
+.react-flow__node:focus,
+.react-flow__node:focus-visible  {
+  outline: none;
+  border: 1px solid #555;
+}
+
+.react-flow__nodesselection {
+  z-index: 3;
+  transform-origin: left top;
+  pointer-events: none;
+}
+
+.react-flow__nodesselection-rect {
+  position: absolute;
+  pointer-events: all;
+  cursor: grab;
+}
+
+.react-flow__handle {
+  position: absolute;
+  pointer-events: none;
+  min-width: 5px;
+  min-height: 5px;
+  background-color: #333;
+}
+
+.react-flow__handle.connectable {
+  pointer-events: all;
+}
+
+.react-flow__handle-bottom {
+  top: auto;
+  left: 50%;
+  bottom: -4px;
+  transform: translate(-50%, 0);
+}
+
+.react-flow__handle-top {
+  left: 50%;
+  top: -4px;
+  transform: translate(-50%, 0);
+}
+
+.react-flow__handle-left {
+  top: 50%;
+  left: -4px;
+  transform: translate(0, -50%);
+}
+
+.react-flow__handle-right {
+  right: -4px;
+  top: 50%;
+  transform: translate(0, -50%);
+}
+
+.react-flow__edgeupdater {
+  cursor: move;
+  pointer-events: all;
+}
+
+.react-flow__panel {
+  position: absolute;
+  z-index: 1000;
+  margin: 15px;
+}
+
+.react-flow__panel.top {
+  top: 0;
+}
+
+.react-flow__panel.bottom {
+  bottom: 0;
+}
+
+.react-flow__panel.left {
+  left: 0;
+}
+
+.react-flow__panel.right {
+  right: 0;
+}
+
+.react-flow__panel.center {
+  left: 50%;
+  transform: translateX(-50%);
+}
+
+.react-flow__attribution {
+  font-size: 10px;
+  background: rgba(255, 255, 255, 0.5);
+  padding: 2px 3px;
+  color: #999;
+  margin: 0;
+}
+
+.react-flow__attribution a {
+  color: #555;
+  text-decoration: none;
+}
+`;
+
+export default style;

packages/core/src/styles/index.ts

@@ -0,0 +1,9 @@
+import { CSSProperties } from 'react';
+
+export const containerStyle: CSSProperties = {
+  position: 'absolute',
+  width: '100%',
+  height: '100%',
+  top: 0,
+  left: 0,
+};

packages/core/src/styles/theme-default.css

@@ -0,0 +1,83 @@
+.react-flow__edge {
+  &.updating {
+    .react-flow__edge-path {
+      stroke: #777;
+    }
+  }
+}
+
+.react-flow__edge-text {
+  font-size: 10px;
+}
+
+.react-flow__node-default,
+.react-flow__node-input,
+.react-flow__node-output,
+.react-flow__node-group {
+  padding: 10px;
+  border-radius: 3px;
+  width: 150px;
+  font-size: 12px;
+  color: #222;
+  text-align: center;
+  border-width: 1px;
+  border-style: solid;
+  border-color: #1a192b;
+
+  &.selected,
+  &:focus,
+  &:focus-visible {
+    border: none;
+    box-shadow: 0 0 0 0.5px #1a192b;
+    outline: none;
+  }
+
+  .react-flow__handle {
+    background: #1a192b;
+  }
+}
+
+.react-flow__node-default.selectable,
+.react-flow__node-input.selectable,
+.react-flow__node-output.selectable,
+.react-flow__node-group.selectable {
+  &:hover {
+    box-shadow: 0 1px 4px 1px rgba(0, 0, 0, 0.08);
+  }
+
+  &.selected,
+  &:focus,
+  &:focus-visible {
+    border: none;
+    box-shadow: 0 0 0 0.5px #1a192b;
+    outline: none;
+  }
+}
+
+.react-flow__node-group {
+  background: rgba(240, 240, 240, 0.25);
+  border-color: #1a192b;
+}
+
+.react-flow__nodesselection-rect,
+.react-flow__selection {
+  background: rgba(0, 89, 220, 0.08);
+  border: 1px dotted rgba(0, 89, 220, 0.8);
+
+  &:focus,
+  &:focus-visible {
+    outline: none;
+  }
+}
+
+.react-flow__handle {
+  width: 6px;
+  height: 6px;
+  background: #555;
+  border: 1px solid white;
+  border-radius: 100%;
+
+  &.connectable {
+    cursor: crosshair;
+  }
+}

packages/core/src/types/general.ts

@@ -221,13 +221,7 @@ export type OnSelectionChangeParams = {
 
 export type OnSelectionChangeFunc = (params: OnSelectionChangeParams) => void;
 
-export type AttributionPosition =
+export type PanelPosition = 'top-left' | 'top-center' | 'top-right' | 'bottom-left' | 'bottom-center' | 'bottom-right';
-  | 'top-left'
-  | 'top-center'
-  | 'top-right'
-  | 'bottom-left'
-  | 'bottom-center'
-  | 'bottom-right';
 
 export type ProOptions = {
   hideAttribution: boolean;

packages/core/src/utils/index.ts

@@ -36,7 +36,7 @@ export const boxToRect = ({ x, y, x2, y2 }: Box): Rect => ({
   height: y2 - y,
 });
 
-export const getBoundsofRects = (rect1: Rect, rect2: Rect): Rect =>
+export const getBoundsOfRects = (rect1: Rect, rect2: Rect): Rect =>
   boxToRect(getBoundsOfBoxes(rectToBox(rect1), rectToBox(rect2)));
 
 export const isNumeric = (n: any): n is number => !isNaN(n) && isFinite(n);

packages/css-utils/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "@react-flow/css-utils",
+  "version": "11.0.0",
+  "description": "Utils for handling styles.",
+  "main": "dist/react-flow-css-utils.cjs.js",
+  "module": "dist/react-flow-css-utils.esm.js",
+  "license": "MIT"
+}

packages/css-utils/src/index.ts

@@ -0,0 +1,10 @@
+export function injectStyle(css: string) {
+  if (typeof document === 'undefined') return;
+
+  const head = document.head || document.getElementsByTagName('head')[0];
+  const style = document.createElement('style');
+
+  head.prepend(style);
+
+  style.appendChild(document.createTextNode(css));
+}

packages/minimap/package.json

@@ -6,18 +6,13 @@
   "module": "dist/react-flow-minimap.esm.js",
   "license": "MIT",
   "dependencies": {
-    "@react-flow/core": "11.0.0",
+    "@react-flow/core": "^11.0.0",
+    "@react-flow/css-utils": "^11.0.0",
     "classcat": "^5.0.3",
-    "d3-drag": "^3.0.0",
-    "d3-selection": "^3.0.0",
     "zustand": "^3.7.2"
   },
   "peerDependencies": {
     "react": "^18.1.0",
     "react-dom": ">=18"
-  },
-  "devDependencies": {
-    "@types/d3-drag": "^3.0.1",
-    "@types/d3-selection": "^3.0.2"
   }
 }

packages/minimap/src/MiniMap.tsx

@@ -4,16 +4,18 @@ import shallow from 'zustand/shallow';
 import {
   useStore,
   getRectOfNodes,
-  Box,
   ReactFlowState,
   Rect,
+  Panel,
+  getBoundsOfRects,
 } from '@react-flow/core';
+import { injectStyle } from '@react-flow/css-utils';
 
 import MiniMapNode from './MiniMapNode';
-import MiniMapDrag from './MiniMapDrag';
 import { MiniMapProps, GetMiniMapNodeAttribute } from './types';
+import baseStyle from './style';
 
-import './style.css';
+injectStyle(baseStyle);
 
 declare const window: any;
 
@@ -30,30 +32,6 @@ const selector = (s: ReactFlowState) => ({
 const getAttrFunction = (func: any): GetMiniMapNodeAttribute =>
   func instanceof Function ? func : () => func;
 
-export const getBoundsOfBoxes = (box1: Box, box2: Box): Box => ({
-  x: Math.min(box1.x, box2.x),
-  y: Math.min(box1.y, box2.y),
-  x2: Math.max(box1.x2, box2.x2),
-  y2: Math.max(box1.y2, box2.y2),
-});
-
-export const rectToBox = ({ x, y, width, height }: Rect): Box => ({
-  x,
-  y,
-  x2: x + width,
-  y2: y + height,
-});
-
-export const boxToRect = ({ x, y, x2, y2 }: Box): Rect => ({
-  x,
-  y,
-  width: x2 - x,
-  height: y2 - y,
-});
-
-export const getBoundsofRects = (rect1: Rect, rect2: Rect): Rect =>
-  boxToRect(getBoundsOfBoxes(rectToBox(rect1), rectToBox(rect2)));
-
 const ARIA_LABEL_KEY = 'react-flow__minimap-desc';
 
 function MiniMap({
@@ -65,6 +43,7 @@ function MiniMap({
   nodeBorderRadius = 5,
   nodeStrokeWidth = 2,
   maskColor = 'rgb(240, 242, 243, 0.7)',
+  position = 'bottom-right',
 }: MiniMapProps) {
   const minimapId = useId();
   const {
@@ -85,7 +64,7 @@ function MiniMap({
     height: containerHeight / transform[2],
   };
   const boundingRect =
-    nodes.length > 0 ? getBoundsofRects(getRectOfNodes(nodes), viewBB) : viewBB;
+    nodes.length > 0 ? getBoundsOfRects(getRectOfNodes(nodes), viewBB) : viewBB;
   const scaledWidth = boundingRect.width / elementWidth;
   const scaledHeight = boundingRect.height / elementHeight;
   const viewScale = Math.max(scaledWidth, scaledHeight);
@@ -103,54 +82,52 @@ function MiniMap({
   const labelledBy = `${ARIA_LABEL_KEY}-${minimapId}`;
 
   return (
-    <svg
+    <Panel
-      width={elementWidth}
+      position={position}
-      height={elementHeight}
-      viewBox={`${x} ${y} ${width} ${height}`}
       style={style}
       className={cc(['react-flow__minimap', className])}
-      role="img"
-      aria-labelledby={labelledBy}
     >
-      <title id={labelledBy}>React Flow mini map</title>
+      <svg
-      {nodes
+        width={elementWidth}
-        .filter((node) => !node.hidden && node.width && node.height)
+        height={elementHeight}
-        .map((node) => {
+        viewBox={`${x} ${y} ${width} ${height}`}
-          return (
+        role="img"
-            <MiniMapNode
+        aria-labelledby={labelledBy}
-              key={node.id}
+      >
-              x={node.positionAbsolute?.x ?? 0}
+        <title id={labelledBy}>React Flow mini map</title>
-              y={node.positionAbsolute?.y ?? 0}
+        {nodes
-              width={node.width!}
+          .filter((node) => !node.hidden && node.width && node.height)
-              height={node.height!}
+          .map((node) => {
-              style={node.style}
+            return (
-              className={nodeClassNameFunc(node)}
+              <MiniMapNode
-              color={nodeColorFunc(node)}
+                key={node.id}
-              borderRadius={nodeBorderRadius}
+                x={node.positionAbsolute?.x ?? 0}
-              strokeColor={nodeStrokeColorFunc(node)}
+                y={node.positionAbsolute?.y ?? 0}
-              strokeWidth={nodeStrokeWidth}
+                width={node.width!}
-              shapeRendering={shapeRendering}
+                height={node.height!}
-            />
+                style={node.style}
-          );
+                className={nodeClassNameFunc(node)}
-        })}
+                color={nodeColorFunc(node)}
-      <MiniMapDrag
+                borderRadius={nodeBorderRadius}
-        x={viewBB.x}
+                strokeColor={nodeStrokeColorFunc(node)}
-        y={viewBB.y}
+                strokeWidth={nodeStrokeWidth}
-        width={viewBB.width}
+                shapeRendering={shapeRendering}
-        height={viewBB.height}
+              />
-      />
+            );
-      <path
+          })}
-        className="react-flow__minimap-mask"
+        <path
-        d={`M${x - offset},${y - offset}h${width + offset * 2}v${
+          className="react-flow__minimap-mask"
-          height + offset * 2
+          d={`M${x - offset},${y - offset}h${width + offset * 2}v${
-        }h${-width - offset * 2}z
+            height + offset * 2
+          }h${-width - offset * 2}z
         M${viewBB.x},${viewBB.y}h${viewBB.width}v${
-          viewBB.height
+            viewBB.height
-        }h${-viewBB.width}z`}
+          }h${-viewBB.width}z`}
-        fill={maskColor}
+          fill={maskColor}
-        fillRule="evenodd"
+          fillRule="evenodd"
-      />
+        />
-    </svg>
+      </svg>
+    </Panel>
   );
 }
 

packages/minimap/src/MiniMapDrag.tsx

@@ -1,42 +0,0 @@
-import React, { useEffect, useRef } from 'react';
-import { drag, D3DragEvent, SubjectPosition } from 'd3-drag';
-import { select } from 'd3-selection';
-import { useReactFlow } from '@react-flow/core';
-
-function MiniMapDrag({ x = 0, y = 0, width = 0, height = 0 }) {
-  const dragRef = useRef<SVGRectElement>(null);
-  const { getViewport, setViewport } = useReactFlow();
-
-  useEffect(() => {
-    if (dragRef.current) {
-      const onDrag = (
-        evt: D3DragEvent<SVGRectElement, null, SubjectPosition>
-      ) => {
-        const { x, y, zoom } = getViewport();
-        setViewport({ x: x - evt.dx * zoom, y: y - evt.dy * zoom, zoom });
-      };
-
-      const selection = select(dragRef.current as Element);
-      const dragBehaviour = drag().on('drag', onDrag);
-
-      selection.call(dragBehaviour);
-
-      return () => {
-        selection.on('.drag', null);
-      };
-    }
-  }, [getViewport, setViewport]);
-
-  return (
-    <rect
-      ref={dragRef}
-      fill='rgba(255, 0,0,.5)'
-      x={x}
-      y={y}
-      width={width}
-      height={height}
-    />
-  );
-}
-
-export default MiniMapDrag;

packages/minimap/src/index.tsx

@@ -1,2 +1,2 @@
 export * from './types';
-export { default as MiniMap, default } from './MiniMap';
+export { default as MiniMap } from './MiniMap';

packages/minimap/src/style.css

@@ -1,7 +0,0 @@
-.react-flow__minimap {
-  background-color: #fff;
-  position: absolute;
-  z-index: 5;
-  bottom: 20px;
-  right: 15px;
-}

packages/minimap/src/style.ts

@@ -0,0 +1,6 @@
+const style = `
+.react-flow__minimap {
+  background-color: #fff;
+}`;
+
+export default style;

packages/minimap/src/types.ts

@@ -1,5 +1,5 @@
 import { HTMLAttributes } from 'react';
-import { Node } from '@react-flow/core';
+import { Node, PanelPosition } from '@react-flow/core';
 
 export type GetMiniMapNodeAttribute<NodeData = any> = (
   node: Node<NodeData>
@@ -13,4 +13,5 @@ export interface MiniMapProps<NodeData = any>
   nodeBorderRadius?: number;
   nodeStrokeWidth?: number;
   maskColor?: string;
+  position?: PanelPosition;
 }

packages/renderer/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "@react-flow/renderer",
+  "version": "11.0.0",
+  "description": "The main React Flow package that comes with all the essentials.",
+  "main": "dist/react-flow-renderer.cjs.js",
+  "module": "dist/react-flow-renderer.esm.js",
+  "license": "MIT",
+  "scripts": {
+    "build": "postcss src/*.css --config ../../tooling/postcss.config.json --dir dist"
+  },
+  "dependencies": {
+    "@react-flow/background": "11.0.0",
+    "@react-flow/controls": "11.0.0",
+    "@react-flow/core": "11.0.0",
+    "@react-flow/minimap": "11.0.0"
+  },
+  "peerDependencies": {
+    "react": "^18.1.0",
+    "react-dom": ">=18"
+  },
+  "devDependencies": {
+    "autoprefixer": "^10.4.8",
+    "postcss": "^8.4.14",
+    "postcss-cli": "^10.0.0",
+    "postcss-import": "^14.1.0",
+    "postcss-nested": "^5.0.6"
+  }
+}

packages/renderer/src/index.ts

@@ -0,0 +1,4 @@
+export * from '@react-flow/core';
+export * from '@react-flow/minimap';
+export * from '@react-flow/controls';
+export * from '@react-flow/background';

packages/renderer/src/theme-default.css

@@ -0,0 +1 @@
+@import '@react-flow/core/dist/theme-default.css';

tooling/inject-css-babel-plugin.js

@@ -1,45 +0,0 @@
-const fs = require('fs');
-const path = require('path');
-const postcss = require('postcss');
-const autoprefixer = require('autoprefixer');
-const nested = require('postcss-nested');
-
-function getStyleInject(cssString) {
-  return `
-  (function(css) {
-    if (!css || typeof document === 'undefined') return;
-
-    const head = document.head || document.getElementsByTagName('head')[0];
-    const style = document.createElement('style');
-  
-    head.appendChild(style);
-  
-    style.appendChild(document.createTextNode(css));
-  })("${cssString}")
-  `;
-}
-
-module.exports = function (babel) {
-  return {
-    name: 'inject-css-babel-plugin',
-    visitor: {
-      ImportDeclaration(item, state) {
-        if (!item.node.source.value.includes('.css')) {
-          return;
-        }
-
-        const importFilePath = path.resolve(
-          state.file.opts.filename,
-          '..',
-          item.node.source.value
-        );
-
-        const css = fs.readFileSync(importFilePath).toString();
-        const result = postcss([autoprefixer, nested]).process(css);
-        const minified = result.css.replace(/\n/g, '');
-
-        item.replaceWithSourceString(getStyleInject(minified));
-      },
-    },
-  };
-};

tooling/postcss.config.js

@@ -0,0 +1,7 @@
+module.exports = {
+  plugins: [
+    require('postcss-nested'),
+    require('autoprefixer'),
+    require('postcss-import'),
+  ],
+};