codemirror option for text widgets & danbooru tag autocomplete

src/lib/widgets/TextWidgetCodeVariant.ts

@@ -0,0 +1,55 @@
+import type { Extension } from "@codemirror/state";
+import {
+    lineNumbers,
+    highlightSpecialChars,
+    drawSelection,
+    rectangularSelection,
+    crosshairCursor,
+    keymap
+} from "@codemirror/view";
+import { EditorView } from "@codemirror/view";
+import { EditorState } from "@codemirror/state";
+import {
+    foldGutter,
+    indentOnInput,
+    syntaxHighlighting,
+    defaultHighlightStyle,
+    foldKeymap
+} from "@codemirror/language";
+import { history, defaultKeymap, historyKeymap } from "@codemirror/commands";
+import {
+    closeBrackets,
+    closeBracketsKeymap,
+    completionKeymap
+} from "@codemirror/autocomplete";
+import { lintKeymap } from "@codemirror/lint";
+import {
+    type CompletionSource, autocompletion, CompletionContext, startCompletion,
+    currentCompletions, completionStatus, completeFromList, acceptCompletion
+} from "@codemirror/autocomplete"
+import DanbooruTags from "$lib/DanbooruTags";
+
+export const basicSetup: Extension = /*@__PURE__*/ (() => [
+    lineNumbers(),
+    highlightSpecialChars(),
+    history(),
+    foldGutter(),
+    drawSelection(),
+    EditorState.allowMultipleSelections.of(true),
+    indentOnInput(),
+    syntaxHighlighting(defaultHighlightStyle, { fallback: true }),
+    closeBrackets(),
+    rectangularSelection(),
+    crosshairCursor(),
+    EditorView.lineWrapping,
+    DanbooruTags.getCompletionExt(),
+
+    keymap.of([
+        ...closeBracketsKeymap,
+        ...defaultKeymap,
+        ...historyKeymap,
+        ...foldKeymap,
+        ...completionKeymap,
+        ...lintKeymap
+    ])
+])();