fix(editor): Show mappings by default in sub-node NDVs when the root node isn't executed (#12642)

packages/editor-ui/src/components/InputPanel.test.ts

@@ -4,10 +4,15 @@ import InputPanel, { type Props } from '@/components/InputPanel.vue';
 import { STORES } from '@/constants';
 import { useWorkflowsStore } from '@/stores/workflows.store';
 import { createTestingPinia } from '@pinia/testing';
-import { NodeConnectionType, type IConnections, type INodeExecutionData } from 'n8n-workflow';
+import { waitFor } from '@testing-library/vue';
+import {
+	NodeConnectionType,
+	type IConnections,
+	type INodeExecutionData,
+	type IRunData,
+} from 'n8n-workflow';
 import { setActivePinia } from 'pinia';
 import { mockedStore } from '../__tests__/utils';
-import { waitFor } from '@testing-library/vue';
 
 vi.mock('vue-router', () => {
 	return {
@@ -24,7 +29,7 @@ const nodes = [
 	createTestNode({ name: 'Tool' }),
 ];
 
-const render = (props: Partial<Props> = {}, pinData?: INodeExecutionData[]) => {
+const render = (props: Partial<Props> = {}, pinData?: INodeExecutionData[], runData?: IRunData) => {
 	const connections: IConnections = {
 		[nodes[0].name]: {
 			[NodeConnectionType.Main]: [
@@ -50,12 +55,38 @@ const render = (props: Partial<Props> = {}, pinData?: INodeExecutionData[]) => {
 	setActivePinia(pinia);
 
 	const workflow = createTestWorkflow({ nodes, connections });
-	useWorkflowsStore().setWorkflow(workflow);
+	const workflowStore = useWorkflowsStore();
+
+	workflowStore.setWorkflow(workflow);
 
 	if (pinData) {
 		mockedStore(useWorkflowsStore).pinDataByNodeName.mockReturnValue(pinData);
 	}
 
+	if (runData) {
+		workflowStore.setWorkflowExecutionData({
+			id: '',
+			workflowData: {
+				id: '',
+				name: '',
+				active: false,
+				createdAt: '',
+				updatedAt: '',
+				nodes,
+				connections,
+				versionId: '',
+			},
+			finished: false,
+			mode: 'trigger',
+			status: 'success',
+			startedAt: new Date(),
+			createdAt: new Date(),
+			data: {
+				resultData: { runData },
+			},
+		});
+	}
+
 	const workflowObject = createTestWorkflowObject({
 		nodes,
 		connections,
@@ -83,4 +114,27 @@ describe('InputPanel', () => {
 		await waitFor(() => expect(queryByTestId('ndv-data-size-warning')).not.toBeInTheDocument());
 		expect(container).toMatchSnapshot();
 	});
+
+	it("opens mapping tab by default if the node hasn't run yet", async () => {
+		const { findByTestId } = render({ currentNodeName: 'Tool' });
+
+		expect((await findByTestId('radio-button-mapping')).parentNode).toBeChecked();
+		expect((await findByTestId('radio-button-debugging')).parentNode).not.toBeChecked();
+	});
+
+	it('opens debugging tab by default if the node has already run', async () => {
+		const { findByTestId } = render({ currentNodeName: 'Tool' }, undefined, {
+			Tool: [
+				{
+					startTime: 0,
+					executionTime: 0,
+					source: [],
+					data: {},
+				},
+			],
+		});
+
+		expect((await findByTestId('radio-button-mapping')).parentNode).not.toBeChecked();
+		expect((await findByTestId('radio-button-debugging')).parentNode).toBeChecked();
+	});
 });

packages/editor-ui/src/components/InputPanel.vue

@@ -1,27 +1,27 @@
 <script setup lang="ts">
 import { useI18n } from '@/composables/useI18n';
+import { useTelemetry } from '@/composables/useTelemetry';
 import {
 	CRON_NODE_TYPE,
 	INTERVAL_NODE_TYPE,
 	MANUAL_TRIGGER_NODE_TYPE,
 	START_NODE_TYPE,
 } from '@/constants';
-import { useNDVStore } from '@/stores/ndv.store';
 import { useNodeTypesStore } from '@/stores/nodeTypes.store';
 import { useUIStore } from '@/stores/ui.store';
 import { useWorkflowsStore } from '@/stores/workflows.store';
 import { waitingNodeTooltip } from '@/utils/executionUtils';
 import { uniqBy } from 'lodash-es';
+import { N8nRadioButtons, N8nText, N8nTooltip } from 'n8n-design-system';
 import type { INodeInputConfiguration, INodeOutputConfiguration, Workflow } from 'n8n-workflow';
 import { NodeConnectionType, NodeHelpers } from 'n8n-workflow';
+import { storeToRefs } from 'pinia';
 import { computed, ref, watch } from 'vue';
+import { useNDVStore } from '../stores/ndv.store';
 import InputNodeSelect from './InputNodeSelect.vue';
 import NodeExecuteButton from './NodeExecuteButton.vue';
 import RunData from './RunData.vue';
 import WireMeUp from './WireMeUp.vue';
-import { useTelemetry } from '@/composables/useTelemetry';
-import { N8nRadioButtons, N8nTooltip, N8nText } from 'n8n-design-system';
-import { storeToRefs } from 'pinia';
 
 type MappingMode = 'debugging' | 'mapping';
 
@@ -71,7 +71,7 @@ const telemetry = useTelemetry();
 
 const showDraggableHintWithDelay = ref(false);
 const draggableHintShown = ref(false);
-const inputMode = ref<MappingMode>('debugging');
+
 const mappedNode = ref<string | null>(null);
 const inputModes = [
 	{ value: 'mapping', label: i18n.baseText('ndv.input.mapping') },
@@ -88,6 +88,27 @@ const {
 	focusedMappableInput,
 	isMappingOnboarded: isUserOnboarded,
 } = storeToRefs(ndvStore);
+
+const rootNode = computed(() => {
+	if (!activeNode.value) return null;
+
+	return props.workflow.getChildNodes(activeNode.value.name, 'ALL').at(0) ?? null;
+});
+
+const hasRootNodeRun = computed(() => {
+	return !!(
+		rootNode.value && workflowsStore.getWorkflowExecution?.data?.resultData.runData[rootNode.value]
+	);
+});
+
+const inputMode = ref<MappingMode>(
+	// Show debugging mode by default only when the node has already run
+	activeNode.value &&
+		workflowsStore.getWorkflowExecution?.data?.resultData.runData[activeNode.value.name]
+		? 'debugging'
+		: 'mapping',
+);
+
 const isMappingMode = computed(() => isActiveNodeConfig.value && inputMode.value === 'mapping');
 const showDraggableHint = computed(() => {
 	const toIgnore = [START_NODE_TYPE, MANUAL_TRIGGER_NODE_TYPE, CRON_NODE_TYPE, INTERVAL_NODE_TYPE];
@@ -159,12 +180,6 @@ const isExecutingPrevious = computed(() => {
 });
 const workflowRunning = computed(() => uiStore.isActionActive.workflowRunning);
 
-const rootNode = computed(() => {
-	if (!activeNode.value) return null;
-
-	return props.workflow.getChildNodes(activeNode.value.name, 'ALL').at(0) ?? null;
-});
-
 const rootNodesParents = computed(() => {
 	if (!rootNode.value) return [];
 	return props.workflow.getParentNodesByDepth(rootNode.value);
@@ -404,9 +419,28 @@ function activatePane() {
 				v-if="(isActiveNodeConfig && rootNode) || parentNodes.length"
 				:class="$style.noOutputData"
 			>
-				<N8nText tag="div" :bold="true" color="text-dark" size="large">{{
-					i18n.baseText('ndv.input.noOutputData.title')
-				}}</N8nText>
+				<template v-if="isMappingEnabled || hasRootNodeRun">
+					<N8nText tag="div" :bold="true" color="text-dark" size="large">{{
+						i18n.baseText('ndv.input.noOutputData.title')
+					}}</N8nText>
+				</template>
+				<template v-else>
+					<N8nText tag="div" :bold="true" color="text-dark" size="large">{{
+						i18n.baseText('ndv.input.rootNodeHasNotRun.title')
+					}}</N8nText>
+					<N8nText tag="div" color="text-dark" size="medium">
+						<i18n-t tag="span" keypath="ndv.input.rootNodeHasNotRun.description">
+							<template #link>
+								<a
+									href="#"
+									data-test-id="switch-to-mapping-mode-link"
+									@click.prevent="onInputModeChange('mapping')"
+									>{{ i18n.baseText('ndv.input.rootNodeHasNotRun.description.link') }}</a
+								>
+							</template>
+						</i18n-t>
+					</N8nText>
+				</template>
 				<N8nTooltip v-if="!readOnly" :visible="showDraggableHint && showDraggableHintWithDelay">
 					<template #content>
 						<div
@@ -423,6 +457,7 @@ function activatePane() {
 						:transparent="true"
 						:node-name="(isActiveNodeConfig ? rootNode : currentNodeName) ?? ''"
 						:label="i18n.baseText('ndv.input.noOutputData.executePrevious')"
+						class="mt-m"
 						telemetry-source="inputs"
 						data-test-id="execute-previous-node"
 						@execute="onNodeExecute"
@@ -494,11 +529,7 @@ function activatePane() {
 	margin-left: auto;
 }
 .noOutputData {
-	max-width: 180px;
-
-	> *:first-child {
-		margin-bottom: var(--spacing-m);
-	}
+	max-width: 250px;
 
 	> * {
 		margin-bottom: var(--spacing-2xs);

packages/editor-ui/src/components/__snapshots__/InputPanel.test.ts.snap

@@ -28,19 +28,6 @@ exports[`InputPanel > should render 1`] = `
           role="radiogroup"
         >
           
-          <label
-            aria-checked="false"
-            class="n8n-radio-button container hoverable"
-            role="radio"
-            tabindex="-1"
-          >
-            <div
-              class="button medium"
-              data-test-id="radio-button-mapping"
-            >
-              Mapping
-            </div>
-          </label>
           <label
             aria-checked="true"
             class="n8n-radio-button container hoverable"
@@ -49,6 +36,19 @@ exports[`InputPanel > should render 1`] = `
           >
             <div
               class="button active medium"
+              data-test-id="radio-button-mapping"
+            >
+              Mapping
+            </div>
+          </label>
+          <label
+            aria-checked="false"
+            class="n8n-radio-button container hoverable"
+            role="radio"
+            tabindex="-1"
+          >
+            <div
+              class="button medium"
               data-test-id="radio-button-debugging"
             >
               Debugging

packages/editor-ui/src/plugins/i18n/locales/en.json

@@ -984,6 +984,9 @@
 	"ndv.input.notConnected.learnMore": "Learn more",
 	"ndv.input.disabled": "The '{nodeName}' node is disabled and won’t execute.",
 	"ndv.input.disabled.cta": "Enable it",
+	"ndv.input.rootNodeHasNotRun.title": "Parent node hasn’t run yet",
+	"ndv.input.rootNodeHasNotRun.description": "Inputs that the parent node sends to this one will appear here. To map data in from previous nodes, use the {link} view.",
+	"ndv.input.rootNodeHasNotRun.description.link": "mapping",
 	"ndv.output": "Output",
 	"ndv.output.ai.empty": "👈 Use these logs to see information on how the {node} node completed processing. You can click on a node to see the input it received and data it output.",
 	"ndv.output.ai.waiting": "Waiting for message",