feat(agentflow): optional cavasActions to allow additional buttons next to validate (#6224)

* feat(agentflow): optional cavasActions to allow additional buttons next to validate

- Updated Agentflow component to support canvasActions prop for rendering additional action buttons in the canvas overlay.
- Enhanced type definitions to include canvasActions in AgentflowProps.
- Added tests to verify the rendering of canvasActions in the Agentflow component.
- Added a new example  demonstrating custom FABs alongside the validation button.

* update jsdoc to match actual implementation

packages/agentflow/examples/src/App.tsx

@@ -15,7 +15,8 @@ import {
     DarkModeExampleProps,
     FilteredComponentsExampleProps,
     MultiNodeFlowProps,
-    StatusIndicatorsExampleProps
+    StatusIndicatorsExampleProps,
+    ValidationActionsExampleProps
 } from './demos'
 import { PropsDisplay } from './PropsDisplay'
 
@@ -81,6 +82,13 @@ const examples: Array<{
         description: 'Restrict available nodes with presets',
         props: FilteredComponentsExampleProps,
         component: lazy(() => import('./demos/FilteredComponentsExample').then((m) => ({ default: m.FilteredComponentsExample })))
+    },
+    {
+        id: 'canvas-actions',
+        name: 'Canvas Actions',
+        description: 'Custom FABs alongside the validation button via canvasActions',
+        props: ValidationActionsExampleProps,
+        component: lazy(() => import('./demos/ValidationActionsExample').then((m) => ({ default: m.ValidationActionsExample })))
     }
 ]
 

packages/agentflow/examples/src/demos/ValidationActionsExample.tsx

@@ -0,0 +1,71 @@
+/**
+ * Canvas Actions Example
+ *
+ * Demonstrates how to add custom FAB buttons alongside the built-in validation
+ * button in the top-right canvas overlay using the `canvasActions` prop.
+ *
+ * Mirrors the legacy v2 pattern where a chat FAB and validation FAB sit side-by-side.
+ */
+
+import { useState } from 'react'
+
+import { Agentflow } from '@flowiseai/agentflow'
+import { Box, Dialog, DialogContent, DialogTitle, Fab, IconButton, Typography } from '@mui/material'
+import { IconMessage, IconX } from '@tabler/icons-react'
+
+import { apiBaseUrl, token } from '../config'
+
+function ChatFab() {
+    const [open, setOpen] = useState(false)
+
+    return (
+        <>
+            <Fab
+                size='small'
+                aria-label='chat'
+                title='Chat'
+                onClick={() => setOpen(true)}
+                sx={{
+                    color: 'white',
+                    backgroundColor: 'secondary.main',
+                    '&:hover': {
+                        backgroundColor: 'secondary.main',
+                        backgroundImage: 'linear-gradient(rgb(0 0 0/10%) 0 0)'
+                    }
+                }}
+            >
+                <IconMessage />
+            </Fab>
+
+            <Dialog open={open} onClose={() => setOpen(false)} maxWidth='sm' fullWidth>
+                <DialogTitle sx={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+                    Chat
+                    <IconButton size='small' onClick={() => setOpen(false)}>
+                        <IconX size={18} />
+                    </IconButton>
+                </DialogTitle>
+                <DialogContent>
+                    <Box sx={{ py: 4, textAlign: 'center' }}>
+                        <Typography variant='body2' color='text.secondary'>
+                            Your chat UI goes here. Full control — bring any component.
+                        </Typography>
+                    </Box>
+                </DialogContent>
+            </Dialog>
+        </>
+    )
+}
+
+export function ValidationActionsExample() {
+    return (
+        <div style={{ width: '100%', height: '100%' }}>
+            <Agentflow apiBaseUrl={apiBaseUrl} token={token ?? undefined} canvasActions={<ChatFab />} />
+        </div>
+    )
+}
+
+export const ValidationActionsExampleProps = {
+    apiBaseUrl: '{from environment variables}',
+    token: '{from environment variables}',
+    canvasActions: '<ChatFab />'
+}

packages/agentflow/examples/src/demos/index.ts

@@ -6,3 +6,4 @@ export * from './DarkModeExample'
 export * from './FilteredComponentsExample'
 export * from './MultiNodeFlow'
 export * from './StatusIndicatorsExample'
+export * from './ValidationActionsExample'

packages/agentflow/src/Agentflow.test.tsx

@@ -428,6 +428,30 @@ describe('Agentflow Component', () => {
         })
     })
 
+    describe('Canvas Actions', () => {
+        it('should render canvasActions content in the canvas', async () => {
+            const { getByTestId } = render(
+                <Agentflow {...defaultProps} canvasActions={<button data-testid='custom-action'>My Button</button>} />
+            )
+
+            await waitFor(() => {
+                expect(getByTestId('custom-action')).toBeInTheDocument()
+            })
+        })
+
+        it('should not render canvasActions in read-only mode', async () => {
+            const { container, queryByTestId } = render(
+                <Agentflow {...defaultProps} readOnly={true} canvasActions={<button data-testid='custom-action'>My Button</button>} />
+            )
+
+            await waitFor(() => {
+                expect(container.querySelector('.agentflow-container')).toBeInTheDocument()
+            })
+
+            expect(queryByTestId('custom-action')).not.toBeInTheDocument()
+        })
+    })
+
     describe('Imperative Ref', () => {
         it('should expose agentflow instance via ref', async () => {
             const ref = createRef<AgentFlowInstance>()

packages/agentflow/src/Agentflow.tsx

@@ -41,6 +41,7 @@ function AgentflowCanvas({
     showDefaultHeader = true,
     enableGenerator = true,
     showDefaultPalette = true,
+    canvasActions,
     renderHeader,
     renderNodePalette
 }: {
@@ -52,6 +53,7 @@ function AgentflowCanvas({
     showDefaultHeader?: boolean
     showDefaultPalette?: boolean
     enableGenerator?: boolean
+    canvasActions?: AgentflowProps['canvasActions']
     renderHeader?: AgentflowProps['renderHeader']
     renderNodePalette?: AgentflowProps['renderNodePalette']
 }) {
@@ -272,14 +274,17 @@ function AgentflowCanvas({
                         </StyledFab>
                     )}
 
-                    {/* Validation Feedback - positioned at top right */}
+                    {/* Canvas action buttons - positioned at top right */}
                     {!readOnly && (
-                        <ValidationFeedback
-                            nodes={nodes as FlowNode[]}
-                            edges={edges as FlowEdge[]}
-                            availableNodes={availableNodes}
-                            setNodes={setLocalNodes as React.Dispatch<React.SetStateAction<FlowNode[]>>}
-                        />
+                        <div style={{ position: 'absolute', right: 20, top: 20, zIndex: 1001, display: 'flex', gap: 8 }}>
+                            <ValidationFeedback
+                                nodes={nodes as FlowNode[]}
+                                edges={edges as FlowEdge[]}
+                                availableNodes={availableNodes}
+                                setNodes={setLocalNodes as React.Dispatch<React.SetStateAction<FlowNode[]>>}
+                            />
+                            {canvasActions}
+                        </div>
                     )}
 
                     <ReactFlow
@@ -368,7 +373,8 @@ export const Agentflow = forwardRef<AgentFlowInstance, AgentflowProps>(function
         renderHeader,
         renderNodePalette,
         showDefaultHeader = true,
-        showDefaultPalette = true
+        showDefaultPalette = true,
+        canvasActions
     } = props
 
     return (
@@ -394,6 +400,7 @@ export const Agentflow = forwardRef<AgentFlowInstance, AgentflowProps>(function
                     showDefaultPalette={showDefaultPalette}
                     renderHeader={renderHeader}
                     renderNodePalette={renderNodePalette}
+                    canvasActions={canvasActions}
                 />
             </ReactFlowProvider>
         </AgentflowProvider>
@@ -416,6 +423,7 @@ const AgentflowCanvasWithRef = forwardRef<
         enableGenerator?: boolean
         renderHeader?: AgentflowProps['renderHeader']
         renderNodePalette?: AgentflowProps['renderNodePalette']
+        canvasActions?: AgentflowProps['canvasActions']
     }
 >(function AgentflowCanvasWithRef(props, ref) {
     const agentflow = useAgentflow()

packages/agentflow/src/core/types/agentflow.ts

@@ -59,6 +59,21 @@ export interface AgentflowProps {
     /** Whether the canvas is read-only */
     readOnly?: boolean
 
+    /**
+     * Additional buttons rendered in the top-right canvas overlay, to the right of the built-in
+     * validation FAB. Consumers have full control over content — pass any ReactNode (FABs, icon
+     * buttons, popovers, dialogs, etc.). Hidden when `readOnly` is true.
+     *
+     * @example
+     * // Add a chat button alongside the validation FAB (mirrors legacy v2 pattern)
+     * canvasActions={
+     *   <Fab size="small" color="secondary" onClick={() => setShowChat(true)}>
+     *     <IconMessage />
+     *   </Fab>
+     * }
+     */
+    canvasActions?: ReactNode
+
     /** Custom header renderer - receives save/export handlers */
     renderHeader?: (props: HeaderRenderProps) => ReactNode
 

packages/agentflow/src/features/canvas/components/ValidationFeedback.tsx

@@ -144,7 +144,7 @@ function ValidationFeedbackComponent({ nodes, edges, availableNodes, setNodes }:
     return (
         <>
             <ClickAwayListener onClickAway={handleClose}>
-                <div ref={containerRef} style={{ position: 'absolute', right: 20, top: 20, zIndex: 1001 }}>
+                <div ref={containerRef} style={{ position: 'relative' }}>
                     <Fab
                         size='small'
                         aria-label='validation'