js editor

src/rules/ScriptEditor.vue

@@ -0,0 +1,81 @@
+<script setup lang="ts">
+import * as monaco from 'monaco-editor';
+import editorWorker from 'monaco-editor/esm/vs/editor/editor.worker?worker';
+import tsWorker from 'monaco-editor/esm/vs/language/typescript/ts.worker?worker';
+import {onBeforeUnmount, onMounted, ref, watch} from 'vue';
+import {fetchScriptDefinitions} from '@/mammon';
+
+(self as unknown as { MonacoEnvironment: { getWorker(workerId: string, label: string): Worker } }).MonacoEnvironment = {
+  getWorker(_workerId: string, label: string) {
+    if (label === 'typescript' || label === 'javascript') {
+      return new tsWorker();
+    }
+    return new editorWorker();
+  }
+};
+
+let extraLibLoaded = false;
+
+const loadScriptDefinitions = async () => {
+  if (extraLibLoaded) {
+    return;
+  }
+  try {
+    const definitions = await fetchScriptDefinitions();
+    monaco.typescript.javascriptDefaults.addExtraLib(definitions, 'ts:rule-runner.d.ts');
+    extraLibLoaded = true;
+  } catch {
+    // type definitions are optional — the editor still works without autocomplete
+  }
+};
+
+const model = defineModel<string>({default: ''});
+const container = ref<HTMLElement>();
+let editor: monaco.editor.IStandaloneCodeEditor | undefined;
+
+onMounted(async () => {
+  await loadScriptDefinitions();
+
+  if (!container.value) {
+    return;
+  }
+
+  editor = monaco.editor.create(container.value, {
+    value: model.value,
+    language: 'javascript',
+    theme: 'vs-dark',
+    automaticLayout: true,
+    minimap: {enabled: false},
+    scrollBeyondLastLine: false,
+    fontSize: 13,
+    tabSize: 2,
+  });
+
+  editor.onDidChangeModelContent(() => {
+    const value = editor!.getValue();
+
+    if (value !== model.value) {
+      model.value = value;
+    }
+  });
+});
+
+watch(model, value => {
+  if (editor && value !== editor.getValue()) {
+    editor.setValue(value ?? '');
+  }
+});
+
+onBeforeUnmount(() => editor?.dispose());
+</script>
+
+<template>
+  <div ref="container" class="script-editor"></div>
+</template>
+
+<style scoped>
+.script-editor {
+  width: 100%;
+  height: 24rem;
+}
+</style>