feature<applyHeading>:Eliminate one-line limit

README.md

@@ -41,14 +41,12 @@ Download directory(includes `main.js, manifest.json, styles.css`) from the lates
 
 ## Features
 
-### Applying Heading [^1]
+### Applying Heading
 
 ![Applying Heading Demo](https://raw.githubusercontent.com/k4a-dev/obsidian-heading-shifter/main/doc/attachment/applyingHeading.gif)
 
 #### Commands
 
-[^1]: All of Applying Heading commands work when only one line is selected.
-
 | Command           | Description                         | Hotkey |
 | ----------------- | ----------------------------------- | ------ |
 | Apply Heading 0   | Change Current line to no heading.  | -      |

src/features/applyHeading/operation.ts

@@ -1,6 +1,7 @@
 import { Command, Editor } from "obsidian";
 import { HeadingShifterSettings } from "settings";
 import { composeLineChanges } from "utils/editorChange";
+import { createRange } from "utils/range";
 import { applyHeading } from "./module";
 
 /** Return obsidian command object : apply heading
@@ -14,17 +15,15 @@ export const createApplyHeadingCommand = (
 ): Command => {
 	const createEditorCallback = (heading: number) => {
 		return (editor: Editor) => {
-			// Do not process if multiple lines are selected
-			if (editor.getCursor("from").line! != editor.getCursor("to").line) {
-				return;
-			}
+			const lines = createRange(
+				editor.getCursor("from").line,
+				editor.getCursor("to").line - editor.getCursor("from").line + 1
+			);
 
 			// Dispatch Transaction
 			editor.transaction({
-				changes: composeLineChanges(
-					editor,
-					[editor.getCursor().line],
-					(chunk: string) => applyHeading(chunk, heading)
+				changes: composeLineChanges(editor, lines, (chunk: string) =>
+					applyHeading(chunk, heading)
 				),
 			});
 		};

src/utils/range.ts

@@ -11,3 +11,6 @@ export const setMax = (prev: undefined | number, cur: number): number => {
 	}
 	return prev;
 };
+
+export const createRange = (start: number, num: number) =>
+	Array.from(Array(num), (v, k) => k + start);

test/utils.test.ts

@@ -7,6 +7,8 @@ import {
 	getHeadingLines,
 } from "utils/markdown";
 
+import { createRange } from "utils/range";
+
 describe("checkHeading", () => {
 	test("match", () => {
 		expect(checkHeading("# content")).toBe(1);
@@ -151,3 +153,9 @@ f`;
 		]);
 	});
 });
+
+describe("range", () => {
+	test("createRange", () => {
+		expect(createRange(0, 3)).toStrictEqual([0, 1, 2]);
+	});
+});