[-]: highLightPadding 반영 및 overlay 위치 보정

README.md

@@ -49,6 +49,7 @@ const App = () => {
         },
       ],
       options: {
+        highLightPadding: 12,
         infoBoxHeight: 220,
         infoBoxMargin: 24,
         keyboardNavigation: true,
@@ -73,6 +74,8 @@ const App = () => {
 
 `content` is rendered as a plain string. HTML markup in the string is not interpreted.
 
+`highLightPadding` expands the highlight frame around the target element. It defaults to `8` pixels and applies to the rendered highlight box as well as the info box anchor position.
+
 Keyboard navigation is enabled by default while the overlay is open:
 
 - `Escape` closes the tutorial.
@@ -83,6 +86,8 @@ Set `options.keyboardNavigation` to `false` to disable those shortcuts. Shortcut
 
 Set `options.closeOnOverlayClick` to `true` to close the tutorial when the dimmed backdrop itself is clicked. Clicks on the highlight frame and info box do not trigger close.
 
+The info box automatically flips and clamps itself to stay inside the viewport when the target sits close to an edge.
+
 Mount `<TutorialOverlay />` once near the root of your app, then trigger `tutorial.open({ steps, options })` from any event handler or effect.
 
 ## Documentation

packages/document/src/pages/docs/tutorial-overlay.mdx

@@ -24,6 +24,10 @@ function App() {
 
 `TutorialOverlay` does not need props for the current public API. Configure behavior through `tutorial.open({ steps, options })`.
 
+The highlight frame uses `options.highLightPadding` to expand around the target. If you do not provide it, the overlay uses an `8px` padding by default.
+
 By default, the mounted overlay listens for `Escape`, `ArrowLeft`, and `ArrowRight` while it is open. You can disable that with `options.keyboardNavigation = false`.
 
 Backdrop clicks are ignored by default. Set `options.closeOnOverlayClick = true` if you want clicking the dimmed overlay area to close the tutorial.
+
+The info box automatically flips and clamps itself to stay visible when the highlighted target sits near the viewport edges.

packages/document/src/pages/docs/tutorial.mdx

@@ -26,6 +26,7 @@ function App() {
         },
       ],
       options: {
+        highLightPadding: 12,
         infoBoxHeight: 220,
         infoBoxMargin: 24,
         keyboardNavigation: true,
@@ -61,10 +62,12 @@ function App() {
 
 ## Tutorial options
 
+- `highLightPadding`: expands the highlight frame around the target in pixels. Defaults to `8`.
 - `infoBoxHeight`: sets the info box height in pixels.
 - `infoBoxMargin`: controls the vertical gap between the target and the info box.
 - `keyboardNavigation`: enables `Escape`, `ArrowLeft`, and `ArrowRight` shortcuts while the overlay is open. Defaults to `true`.
 - `closeOnOverlayClick`: closes the tutorial when the backdrop itself is clicked. Defaults to `false`.
 - `onClose`: runs when the tutorial is closed.
 
 Keyboard shortcuts are ignored while an `input`, `textarea`, `select`, or `contenteditable` element has focus.
+The info box automatically repositions itself to stay within the viewport when the target is close to an edge.

packages/main/src/components/tutorial-overlay.tsx

@@ -7,6 +7,9 @@ import { tutorial } from '../core/tutorial';
 
 setup(React.createElement);
 
+const DEFAULT_HIGHLIGHT_PADDING = 8;
+const MIN_VIEWPORT_OFFSET = 10;
+
 interface TutorialOverlayProps {
   options?: Options;
 }
@@ -44,6 +47,18 @@ export const TutorialOverlay = React.memo(({}: TutorialOverlayProps) => {
     currentElements.current = [];
   }
 
+  function getHighlightPadding(): number {
+    return Math.max(0, options?.highLightPadding ?? DEFAULT_HIGHLIGHT_PADDING);
+  }
+
+  function clamp(value: number, min: number, max: number): number {
+    if (max < min) {
+      return min;
+    }
+
+    return Math.min(Math.max(value, min), max);
+  }
+
   function setHighlightedElementPositions() {
     const stepConfig = steps[index];
     const elementIds = stepConfig?.targetIds;
@@ -58,12 +73,14 @@ export const TutorialOverlay = React.memo(({}: TutorialOverlayProps) => {
     }[] = [];
 
     const alreadyCalculated = elementIds[0] === currentElements.current[0]?.id;
+    const highlightPadding = getHighlightPadding();
+    let infoBoxAnchor: ElementStyle | null = null;
 
     if (!alreadyCalculated) {
       resetHighlightedElements();
     }
 
-    elementIds.forEach((id: string, index: number) => {
+    elementIds.forEach((id: string) => {
       const element: HTMLElement | null = document.getElementById(id);
       if (!element) {
         console.error(`Highlighted element with id ${id} was not found.`);
@@ -85,17 +102,23 @@ export const TutorialOverlay = React.memo(({}: TutorialOverlayProps) => {
       if (selectedElPosition) {
         const position: ElementStyle = {
           id: id,
-          left: selectedElPosition.left + window.scrollX - 1,
-          top: selectedElPosition.top + window.scrollY - 1,
-          width: selectedElPosition.width + 2,
-          height: selectedElPosition.height + 2,
+          left: selectedElPosition.left + window.scrollX - highlightPadding,
+          top: selectedElPosition.top + window.scrollY - highlightPadding,
+          width: selectedElPosition.width + highlightPadding * 2,
+          height: selectedElPosition.height + highlightPadding * 2,
+          borderRadius: Math.max(10, highlightPadding + 2),
         };
         positions.push(position);
-        if (index === 0) {
-          calculateInfoBoxPosition(position, stepConfig.infoBoxAlignment);
+        if (!infoBoxAnchor) {
+          infoBoxAnchor = position;
         }
       }
     });
+
+    if (infoBoxAnchor) {
+      calculateInfoBoxPosition(infoBoxAnchor, stepConfig.infoBoxAlignment);
+    }
+
     if (currentElements.current.length === 0 || !alreadyCalculated) {
       currentElements.current = elements;
     }
@@ -106,25 +129,47 @@ export const TutorialOverlay = React.memo(({}: TutorialOverlayProps) => {
   function calculateInfoBoxPosition(position: ElementStyle, alignment?: 'center' | 'left' | 'right') {
     const boxHeight = options?.infoBoxHeight ?? 200;
     const margin = options?.infoBoxMargin ?? 30;
+    const minLeft = window.scrollX + MIN_VIEWPORT_OFFSET;
+    const maxLeft = window.scrollX + window.innerWidth - MIN_VIEWPORT_OFFSET;
+    const minTop = window.scrollY + MIN_VIEWPORT_OFFSET;
+    const maxTop = window.scrollY + window.innerHeight - MIN_VIEWPORT_OFFSET;
 
     let newBoxTop = position.top - boxHeight - margin;
-    if (newBoxTop < 10) {
-      newBoxTop = position.top + position.height + margin;
-    }
+    const fallbackBoxTop = position.top + position.height + margin;
 
     const el = infoBoxElement.current;
     if (el) {
+      el.style.height = boxHeight + 'px';
+
+      const boxWidth = el.getBoundingClientRect().width || el.clientWidth;
       let newBoxLeft: number;
+
       if (alignment === 'left') {
-        newBoxLeft = position.left < 10 ? 10 : position.left;
+        newBoxLeft = position.left;
       } else if (alignment === 'right') {
-        newBoxLeft = position.left + position.width - el.clientWidth;
+        newBoxLeft = position.left + position.width - boxWidth;
       } else {
         newBoxLeft = position.left + position.width / 2;
-        const halfOfBoxWidth = el.clientWidth / 2;
-        newBoxLeft = newBoxLeft - halfOfBoxWidth < 10 ? 10 + halfOfBoxWidth : newBoxLeft;
+        const halfOfBoxWidth = boxWidth / 2;
+        newBoxLeft = clamp(newBoxLeft, minLeft + halfOfBoxWidth, maxLeft - halfOfBoxWidth);
       }
-      el.style.height = boxHeight + 'px';
+
+      if (alignment !== 'center') {
+        newBoxLeft = clamp(newBoxLeft, minLeft, maxLeft - boxWidth);
+      }
+
+      const maxBoxTop = maxTop - boxHeight;
+      if (newBoxTop < minTop) {
+        newBoxTop = fallbackBoxTop;
+      }
+      if (newBoxTop > maxBoxTop) {
+        if (position.top - boxHeight - margin >= minTop) {
+          newBoxTop = position.top - boxHeight - margin;
+        } else {
+          newBoxTop = clamp(newBoxTop, minTop, maxBoxTop);
+        }
+      }
+
       el.style.top = newBoxTop + 'px';
       el.style.left = newBoxLeft + 'px';
       el.style.transform = alignment === 'center' ? 'translate(-50%)' : '';
@@ -229,7 +274,7 @@ const Wrapper = styled('div')`
 const Hightlight = styled('div')`
   position: absolute;
   z-index: 9999;
+  box-sizing: border-box;
   border: 2px solid #ff0000;
   border-radius: 0.625rem;
-  transform: translate(-1px, -1px);
 `;

packages/main/src/core/types.ts

@@ -27,4 +27,5 @@ export interface ElementStyle {
   top: number;
   width: number;
   height: number;
+  borderRadius?: number;
 }

packages/main/test/tutorial-overlay.test.tsx

@@ -4,6 +4,8 @@ import { TutorialOverlay } from '../src/components/tutorial-overlay';
 import { tutorial } from '../src/core/tutorial';
 import type { Options } from '../src/core/types';
 
+const DEFAULT_HIGHLIGHT_PADDING = 8;
+
 function renderOverlay() {
   render(
     <div>
@@ -35,6 +37,29 @@ function openTutorial(options: Options = {}) {
   });
 }
 
+function createDomRect({ left, top, width, height }: { left: number; top: number; width: number; height: number }): DOMRect {
+  return {
+    x: left,
+    y: top,
+    left,
+    top,
+    width,
+    height,
+    right: left + width,
+    bottom: top + height,
+    toJSON: () => '',
+  } as DOMRect;
+}
+
+function mockTargetRect(id: string, rect: { left: number; top: number; width: number; height: number }) {
+  const element = document.getElementById(id) as HTMLElement;
+  element.getBoundingClientRect = jest.fn(() => createDomRect(rect));
+}
+
+function getInfoBoxElement(): HTMLDivElement {
+  return screen.getByText('Step 1').closest('div')?.parentElement?.parentElement as HTMLDivElement;
+}
+
 describe('TutorialOverlay', () => {
   test('stays mounted when a target element cannot be found', () => {
     const errorSpy = jest.spyOn(console, 'error').mockImplementation(() => {});
@@ -157,4 +182,118 @@ describe('TutorialOverlay', () => {
     expect(screen.getByText('Step 1 content')).toBeInTheDocument();
     expect(onClose).not.toHaveBeenCalled();
   });
+
+  test('applies the default highlight padding to the calculated rect', () => {
+    renderOverlay();
+    mockTargetRect('first-target', { left: 100, top: 80, width: 120, height: 40 });
+
+    openTutorial();
+
+    expect(screen.getByTestId('tutorial-overlay-highlight-first-target')).toHaveStyle({
+      left: `${100 - DEFAULT_HIGHLIGHT_PADDING}px`,
+      top: `${80 - DEFAULT_HIGHLIGHT_PADDING}px`,
+      width: `${120 + DEFAULT_HIGHLIGHT_PADDING * 2}px`,
+      height: `${40 + DEFAULT_HIGHLIGHT_PADDING * 2}px`,
+    });
+  });
+
+  test('applies a custom highlight padding to the calculated rect', () => {
+    renderOverlay();
+    mockTargetRect('first-target', { left: 200, top: 160, width: 80, height: 32 });
+
+    openTutorial({ highLightPadding: 16 });
+
+    expect(screen.getByTestId('tutorial-overlay-highlight-first-target')).toHaveStyle({
+      left: '184px',
+      top: '144px',
+      width: '112px',
+      height: '64px',
+    });
+  });
+
+  test('keeps the info box inside the viewport when padding expands the target rect', () => {
+    jest.useFakeTimers();
+    Object.defineProperty(window, 'innerWidth', {
+      configurable: true,
+      value: 800,
+    });
+    Object.defineProperty(window, 'innerHeight', {
+      configurable: true,
+      value: 600,
+    });
+
+    renderOverlay();
+    mockTargetRect('first-target', { left: 760, top: 100, width: 40, height: 40 });
+
+    act(() => {
+      tutorial.open({
+        steps: [
+          {
+            title: 'Step 1',
+            content: 'Step 1 content',
+            targetIds: ['first-target'],
+            infoBoxAlignment: 'right',
+          },
+        ],
+        options: {
+          highLightPadding: 8,
+        },
+      });
+    });
+
+    const infoBox = getInfoBoxElement();
+    Object.defineProperty(infoBox, 'clientWidth', {
+      configurable: true,
+      value: 320,
+    });
+    Object.defineProperty(infoBox, 'clientHeight', {
+      configurable: true,
+      value: 200,
+    });
+
+    act(() => {
+      window.dispatchEvent(new Event('resize'));
+      jest.advanceTimersByTime(300);
+    });
+
+    expect(infoBox.style.left).toBe('470px');
+
+    jest.useRealTimers();
+  });
+
+  test('clamps the info box vertically when neither side has enough space', () => {
+    jest.useFakeTimers();
+    Object.defineProperty(window, 'innerWidth', {
+      configurable: true,
+      value: 800,
+    });
+    Object.defineProperty(window, 'innerHeight', {
+      configurable: true,
+      value: 600,
+    });
+
+    renderOverlay();
+    mockTargetRect('first-target', { left: 120, top: 100, width: 80, height: 40 });
+
+    openTutorial({ infoBoxHeight: 520 });
+
+    const infoBox = getInfoBoxElement();
+    Object.defineProperty(infoBox, 'clientWidth', {
+      configurable: true,
+      value: 320,
+    });
+    Object.defineProperty(infoBox, 'clientHeight', {
+      configurable: true,
+      value: 520,
+    });
+
+    act(() => {
+      window.dispatchEvent(new Event('resize'));
+      jest.advanceTimersByTime(300);
+    });
+
+    expect(infoBox.style.top).toBe('70px');
+
+    jest.useRealTimers();
+  });
 });