feat(editor): Introduce proxy completions to expressions

packages/editor-ui/package.json

@@ -27,9 +27,9 @@
     "test:dev": "vitest"
   },
   "dependencies": {
-    "@codemirror/autocomplete": "^6.1.0",
+    "@codemirror/autocomplete": "^6.4.0",
     "@codemirror/commands": "^6.1.0",
-    "@codemirror/lang-javascript": "^6.0.2",
+    "@codemirror/lang-javascript": "^6.1.2",
     "@codemirror/language": "^6.2.1",
     "@codemirror/lint": "^6.0.0",
     "@codemirror/state": "^6.1.4",

packages/editor-ui/src/components/CodeNodeEditor/baseExtensions.ts

@@ -8,19 +8,16 @@ import {
 	lineNumbers,
 } from '@codemirror/view';
 import { bracketMatching, foldGutter, indentOnInput } from '@codemirror/language';
-import { acceptCompletion, closeBrackets } from '@codemirror/autocomplete';
+import { acceptCompletion } from '@codemirror/autocomplete';
 import {
 	history,
 	indentWithTab,
 	insertNewlineAndIndent,
 	toggleComment,
 } from '@codemirror/commands';
 import { lintGutter } from '@codemirror/lint';
-import type { Extension } from '@codemirror/state';
 
-import { customInputHandler } from './inputHandler';
-
-const [_, bracketState] = closeBrackets() as readonly Extension[];
+import { codeInputHandler } from '@/plugins/codemirror/inputHandlers/code.inputHandler';
 
 export const baseExtensions = [
 	lineNumbers(),
@@ -29,7 +26,7 @@ export const baseExtensions = [
 	history(),
 	foldGutter(),
 	lintGutter(),
-	[customInputHandler, bracketState],
+	codeInputHandler(),
 	dropCursor(),
 	indentOnInput(),
 	bracketMatching(),

packages/editor-ui/src/components/CodeNodeEditor/completer.ts

@@ -54,7 +54,7 @@ export const completerExtension = mixins(
 					// luxon
 					this.todayCompletions,
 					this.nowCompletions,
-					this.dateTimeCompltions,
+					this.dateTimeCompletions,
 
 					// item index
 					this.inputCompletions,
@@ -174,7 +174,7 @@ export const completerExtension = mixins(
 
 				if (value === '$now') return this.nowCompletions(context, variable);
 				if (value === '$today') return this.todayCompletions(context, variable);
-				if (value === 'DateTime') return this.dateTimeCompltions(context, variable);
+				if (value === 'DateTime') return this.dateTimeCompletions(context, variable);
 
 				// item index
 

packages/editor-ui/src/components/CodeNodeEditor/completions/jsonField.completions.ts

@@ -1,11 +1,12 @@
 import Vue from 'vue';
-import { isAllowedInDotNotation, escape, toVariableOption } from '../utils';
+import { escape, toVariableOption } from '../utils';
 import type { Completion, CompletionContext, CompletionResult } from '@codemirror/autocomplete';
 import type { IDataObject, IPinData, IRunData } from 'n8n-workflow';
 import type { CodeNodeEditorMixin } from '../types';
 import { mapStores } from 'pinia';
 import { useWorkflowsStore } from '@/stores/workflows';
 import { useNDVStore } from '@/stores/ndv';
+import { isAllowedInDotNotation } from '@/plugins/codemirror/completions/utils';
 
 export const jsonFieldCompletions = (Vue as CodeNodeEditorMixin).extend({
 	computed: {

packages/editor-ui/src/components/CodeNodeEditor/completions/luxon.completions.ts

@@ -76,7 +76,7 @@ export const luxonCompletions = (Vue as CodeNodeEditorMixin).extend({
 		/**
 		 * Complete `DateTime` with luxon `DateTime` static methods.
 		 */
-		dateTimeCompltions(context: CompletionContext, matcher = 'DateTime'): CompletionResult | null {
+		dateTimeCompletions(context: CompletionContext, matcher = 'DateTime'): CompletionResult | null {
 			const pattern = new RegExp(`${escape(matcher)}\..*`);
 
 			const preCursor = context.matchBefore(pattern);

packages/editor-ui/src/components/CodeNodeEditor/utils.ts

@@ -29,12 +29,6 @@ export function walk<T extends RangeNode>(
 	return found as T[];
 }
 
-export const isAllowedInDotNotation = (str: string) => {
-	const DOT_NOTATION_BANNED_CHARS = /^(\d)|[\\ `!@#$%^&*()_+\-=[\]{};':"\\|,.<>?~]/g;
-
-	return !DOT_NOTATION_BANNED_CHARS.test(str);
-};
-
 export const escape = (str: string) =>
 	str
 		.replace('$', '\\$')

packages/editor-ui/src/components/ExpressionEditorModal/ExpressionEditorModalInput.vue

@@ -10,13 +10,14 @@ import { history } from '@codemirror/commands';
 
 import { workflowHelpers } from '@/mixins/workflowHelpers';
 import { expressionManager } from '@/mixins/expressionManager';
-import { doubleBraceHandler } from '@/plugins/codemirror/doubleBraceHandler';
-import { n8nLanguageSupport } from '@/plugins/codemirror/n8nLanguageSupport';
+import { expressionInputHandler } from '@/plugins/codemirror/inputHandlers/expression.inputHandler';
+import { n8nLang } from '@/plugins/codemirror/n8nLang';
 import { highlighter } from '@/plugins/codemirror/resolvableHighlighter';
 import { inputTheme } from './theme';
 
 import type { IVariableItemSelected } from '@/Interface';
 import { forceParse } from '@/utils/forceParse';
+import { autocompletion } from '@codemirror/autocomplete';
 
 export default mixins(expressionManager, workflowHelpers).extend({
 	name: 'ExpressionEditorModalInput',
@@ -36,9 +37,10 @@ export default mixins(expressionManager, workflowHelpers).extend({
 	mounted() {
 		const extensions = [
 			inputTheme(),
-			n8nLanguageSupport(),
+			autocompletion(),
+			n8nLang(),
 			history(),
-			doubleBraceHandler(),
+			expressionInputHandler(),
 			EditorView.lineWrapping,
 			EditorState.readOnly.of(this.isReadOnly),
 			EditorView.domEventHandlers({ scroll: forceParse }),

packages/editor-ui/src/components/InlineExpressionEditor/InlineExpressionEditorInput.vue

@@ -13,9 +13,10 @@ import { useNDVStore } from '@/stores/ndv';
 import { workflowHelpers } from '@/mixins/workflowHelpers';
 import { expressionManager } from '@/mixins/expressionManager';
 import { highlighter } from '@/plugins/codemirror/resolvableHighlighter';
-import { n8nLanguageSupport } from '@/plugins/codemirror/n8nLanguageSupport';
-import { doubleBraceHandler } from '@/plugins/codemirror/doubleBraceHandler';
+import { expressionInputHandler } from '@/plugins/codemirror/inputHandlers/expression.inputHandler';
 import { inputTheme } from './theme';
+import { autocompletion, ifIn } from '@codemirror/autocomplete';
+import { n8nLang } from '@/plugins/codemirror/n8nLang';
 
 export default mixins(expressionManager, workflowHelpers).extend({
 	name: 'InlineExpressionEditorInput',
@@ -39,35 +40,19 @@ export default mixins(expressionManager, workflowHelpers).extend({
 	},
 	watch: {
 		value(newValue) {
-			const payload: Record<string, unknown> = {
+			const isInternalChange = newValue === this.editor?.state.doc.toString();
+
+			if (isInternalChange) return;
+
+			// manual update on external change, e.g. from expression modal or mapping drop
+
+			this.editor?.dispatch({
 				changes: {
 					from: 0,
 					to: this.editor?.state.doc.length,
 					insert: newValue,
 				},
-				selection: { anchor: this.cursorPosition, head: this.cursorPosition },
-			};
-
-			/**
-			 * If completion from selection, preserve selection.
-			 */
-			if (this.editor) {
-				const [range] = this.editor.state.selection.ranges;
-
-				const isBraceAutoinsertion =
-					this.editor.state.sliceDoc(range.from - 1, range.from) === '{' &&
-					this.editor.state.sliceDoc(range.to, range.to + 1) === '}';
-
-				if (isBraceAutoinsertion) {
-					payload.selection = { anchor: range.from, head: range.to };
-				}
-			}
-
-			try {
-				this.editor?.dispatch(payload);
-			} catch (_) {
-				// ignore out-of-range selection error on drop
-			}
+			});
 		},
 		ndvInputData() {
 			this.editor?.dispatch({
@@ -92,9 +77,10 @@ export default mixins(expressionManager, workflowHelpers).extend({
 	mounted() {
 		const extensions = [
 			inputTheme({ isSingleLine: this.isSingleLine }),
-			n8nLanguageSupport(),
+			autocompletion(),
+			n8nLang(),
 			history(),
-			doubleBraceHandler(),
+			expressionInputHandler(),
 			EditorView.lineWrapping,
 			EditorView.editable.of(!this.isReadOnly),
 			EditorView.domEventHandlers({