Refactoring

.eslintrc.js

@@ -8,7 +8,7 @@
 module.exports = {
 	root: true,
 	parser: '@typescript-eslint/parser',
-	plugins: ['@typescript-eslint', 'header'],
+	plugins: ['@typescript-eslint', 'header', 'eslint-plugin-tsdoc'],
 	extends: [
 		'eslint:recommended',
 		'plugin:prettier/recommended',
@@ -20,6 +20,7 @@ module.exports = {
 		node: true
 	},
 	rules: {
+		'tsdoc/syntax': 'warn',
 		strict: ['error', 'never'],
 		'no-with': 'error',
 		'no-caller': 'error',

index.d.ts

@@ -19,6 +19,20 @@ declare global {
 		component: Nullable<IComponent>;
 	}
 
+	interface CaretPosition {
+		offsetNode: Node;
+		offset: number;
+	}
+
+	interface Document {
+		caretPositionFromPoint?(x: number, y: number): CaretPosition;
+		caretRangeFromPoint(x: number, y: number): Range;
+	}
+
+	interface ShadowRoot {
+		getSelection(): ReturnType<Window['getSelection']>;
+	}
+
 	interface Function {
 		originalConstructor: Function;
 	}