feat(editor): Show tip when user can type dot after an expression

cypress/e2e/14-mapping.cy.ts

@@ -255,6 +255,7 @@ describe('Data mapping', () => {
 		ndv.actions.typeIntoParameterInput('value', 'delete me');
 
 		ndv.actions.typeIntoParameterInput('name', 'test');
+		ndv.getters.parameterInput('name').find('input').blur();
 
 		ndv.actions.typeIntoParameterInput('value', 'fun');
 		ndv.actions.clearParameterInput('value'); // keep focus on param

packages/editor-ui/src/Interface.ts

@@ -1247,6 +1247,7 @@ export interface NDVState {
 	};
 	isMappingOnboarded: boolean;
 	isAutocompleteOnboarded: boolean;
+	highlightDraggables: boolean;
 }
 
 export interface NotificationOptions extends Partial<ElementNotificationOptions> {

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

@@ -1,3 +1,124 @@
+<script setup lang="ts">
+import { computed, ref, watch } from 'vue';
+
+import ExpressionFunctionIcon from '@/components/ExpressionFunctionIcon.vue';
+import InlineExpressionEditorInput from '@/components/InlineExpressionEditor/InlineExpressionEditorInput.vue';
+import InlineExpressionEditorOutput from '@/components/InlineExpressionEditor/InlineExpressionEditorOutput.vue';
+import { useNDVStore } from '@/stores/ndv.store';
+import { useWorkflowsStore } from '@/stores/workflows.store';
+import { createExpressionTelemetryPayload } from '@/utils/telemetryUtils';
+
+import { useTelemetry } from '@/composables/useTelemetry';
+import type { Segment } from '@/types/expressions';
+import { createEventBus, type EventBus } from 'n8n-design-system/utils';
+import type { IDataObject } from 'n8n-workflow';
+import type { EditorState, SelectionRange } from '@codemirror/state';
+
+const isFocused = ref(false);
+const segments = ref<Segment[]>([]);
+const editorState = ref<EditorState>();
+const selection = ref<SelectionRange>();
+const inlineInput = ref<InstanceType<typeof InlineExpressionEditorInput>>();
+
+type Props = {
+	path: string;
+	modelValue: string;
+	isReadOnly: boolean;
+	rows: number;
+	isAssignment: boolean;
+	additionalExpressionData: IDataObject;
+	eventBus: EventBus;
+};
+
+const props = withDefaults(defineProps<Props>(), {
+	rows: 5,
+	isAssignment: false,
+	additionalExpressionData: () => ({}),
+	eventBus: () => createEventBus(),
+});
+
+const emit = defineEmits<{
+	(event: 'modal-opener-click'): void;
+	(event: 'update:model-value', value: string): void;
+	(event: 'focus'): void;
+	(event: 'blur'): void;
+}>();
+
+const telemetry = useTelemetry();
+const ndvStore = useNDVStore();
+const workflowsStore = useWorkflowsStore();
+
+const hoveringItemNumber = computed(() => ndvStore.hoveringItemNumber);
+const isDragging = computed(() => ndvStore.isDraggableDragging);
+const noInputData = computed(() => ndvStore.hasInputData);
+
+function focus() {
+	if (inlineInput.value) {
+		inlineInput.value.focus();
+	}
+}
+
+function onFocus() {
+	isFocused.value = true;
+	emit('focus');
+}
+
+function onBlur(event?: FocusEvent | KeyboardEvent) {
+	if (
+		event?.target instanceof Element &&
+		Array.from(event.target.classList).some((_class) => _class.includes('resizer'))
+	) {
+		return; // prevent blur on resizing
+	}
+
+	const wasFocused = isFocused.value;
+
+	isFocused.value = false;
+
+	if (wasFocused) {
+		emit('blur');
+
+		const telemetryPayload = createExpressionTelemetryPayload(
+			segments.value,
+			props.modelValue,
+			workflowsStore.workflowId,
+			ndvStore.sessionId,
+			ndvStore.activeNode?.type ?? '',
+		);
+
+		telemetry.track('User closed Expression Editor', telemetryPayload);
+	}
+}
+
+function onValueChange({ value, segments: newSegments }: { value: string; segments: Segment[] }) {
+	segments.value = newSegments;
+
+	if (isDragging.value) return;
+	if (value === '=' + props.modelValue) return; // prevent report on change of target item
+
+	emit('update:model-value', value);
+}
+
+function onSelectionChange({
+	state: newState,
+	selection: newSelection,
+}: {
+	state: EditorState;
+	selection: SelectionRange;
+}) {
+	editorState.value = newState;
+	selection.value = newSelection;
+}
+
+watch(isDragging, (newIsDragging) => {
+	if (newIsDragging) {
+		onBlur();
+	}
+});
+
+defineExpose({ focus });
+</script>
+
 <template>
 	<div
 		v-on-click-outside="onBlur"
@@ -24,7 +145,8 @@
 				:event-bus="eventBus"
 				@focus="onFocus"
 				@blur="onBlur"
-				@change="onChange"
+				@update:model-value="onValueChange"
+				@update:selection="onSelectionChange"
 			/>
 			<n8n-button
 				v-if="!isDragging"
@@ -35,10 +157,13 @@
 				size="xsmall"
 				:class="$style['expression-editor-modal-opener']"
 				data-test-id="expander"
-				@click="$emit('modal-opener-click')"
+				@click="emit('modal-opener-click')"
 			/>
 		</div>
 		<InlineExpressionEditorOutput
+			:unresolved-expression="modelValue"
+			:selection="selection"
+			:editor-state="editorState"
 			:segments="segments"
 			:is-read-only="isReadOnly"
 			:no-input-data="noInputData"
@@ -48,137 +173,6 @@
 	</div>
 </template>
 
-<script lang="ts">
-import { mapStores } from 'pinia';
-import type { PropType } from 'vue';
-import { defineComponent } from 'vue';
-
-import { useNDVStore } from '@/stores/ndv.store';
-import { useWorkflowsStore } from '@/stores/workflows.store';
-import InlineExpressionEditorInput from '@/components/InlineExpressionEditor/InlineExpressionEditorInput.vue';
-import InlineExpressionEditorOutput from '@/components/InlineExpressionEditor/InlineExpressionEditorOutput.vue';
-import ExpressionFunctionIcon from '@/components/ExpressionFunctionIcon.vue';
-import { createExpressionTelemetryPayload } from '@/utils/telemetryUtils';
-
-import type { Segment } from '@/types/expressions';
-import type { IDataObject } from 'n8n-workflow';
-import { useDebounce } from '@/composables/useDebounce';
-import { type EventBus, createEventBus } from 'n8n-design-system/utils';
-
-type InlineExpressionEditorInputRef = InstanceType<typeof InlineExpressionEditorInput>;
-
-export default defineComponent({
-	name: 'ExpressionParameterInput',
-	components: {
-		InlineExpressionEditorInput,
-		InlineExpressionEditorOutput,
-		ExpressionFunctionIcon,
-	},
-	props: {
-		path: {
-			type: String,
-			required: true,
-		},
-		modelValue: {
-			type: String,
-			required: true,
-		},
-		isReadOnly: {
-			type: Boolean,
-			default: false,
-		},
-		rows: {
-			type: Number,
-			default: 5,
-		},
-		isAssignment: {
-			type: Boolean,
-			default: false,
-		},
-		additionalExpressionData: {
-			type: Object as PropType<IDataObject>,
-			default: () => ({}),
-		},
-		eventBus: {
-			type: Object as PropType<EventBus>,
-			default: () => createEventBus(),
-		},
-	},
-	emits: ['focus', 'blur', 'update:model-value', 'modal-opener-click'],
-	setup() {
-		const { callDebounced } = useDebounce();
-		return { callDebounced };
-	},
-	data() {
-		return {
-			isFocused: false,
-			segments: [] as Segment[],
-		};
-	},
-	computed: {
-		...mapStores(useNDVStore, useWorkflowsStore),
-		hoveringItemNumber(): number {
-			return this.ndvStore.hoveringItemNumber;
-		},
-		isDragging(): boolean {
-			return this.ndvStore.isDraggableDragging;
-		},
-		noInputData(): boolean {
-			return !this.ndvStore.hasInputData;
-		},
-	},
-	methods: {
-		focus() {
-			const inlineInputRef = this.$refs.inlineInput as InlineExpressionEditorInputRef | undefined;
-			if (inlineInputRef?.$el) {
-				inlineInputRef.focus();
-			}
-		},
-		onFocus() {
-			this.isFocused = true;
-
-			this.$emit('focus');
-		},
-		onBlur(event?: FocusEvent | KeyboardEvent) {
-			if (
-				event?.target instanceof Element &&
-				Array.from(event.target.classList).some((_class) => _class.includes('resizer'))
-			) {
-				return; // prevent blur on resizing
-			}
-
-			if (this.isDragging) return; // prevent blur on dragging
-
-			const wasFocused = this.isFocused;
-
-			this.isFocused = false;
-
-			if (wasFocused) {
-				this.$emit('blur');
-
-				const telemetryPayload = createExpressionTelemetryPayload(
-					this.segments,
-					this.modelValue,
-					this.workflowsStore.workflowId,
-					this.ndvStore.sessionId,
-					this.ndvStore.activeNode?.type ?? '',
-				);
-
-				this.$telemetry.track('User closed Expression Editor', telemetryPayload);
-			}
-		},
-		onChange({ value, segments }: { value: string; segments: Segment[] }) {
-			this.segments = segments;
-
-			if (this.isDragging) return;
-			if (value === '=' + this.modelValue) return; // prevent report on change of target item
-
-			this.$emit('update:model-value', value);
-		},
-	},
-});
-</script>
-
 <style lang="scss" module>
 .expression-parameter-input {
 	position: relative;