react-native-keyboard-controller/src/components/KeyboardAwareScrollView/__tests__/refocus.spec.tsx at d07569ab9145826560405ec741108df02be65bc2 · kirillzyusko/react-native-keyboard-controller · GitHub

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import "../__fixtures__/mocks";

import {
  INPUT_LAYOUT_B,
  INPUT_TARGET_B,
  KEYBOARD_HEIGHT,
  inputEvent,
  kbEvent,
  lastScrollToY,
  mockInput,
  mockKeyboardHandlers,
  mockOffset,
  mockScrollTo,
  mockSelectionHandler,
  renderKeyboardAwareScrollView,
  reset,
  selectionEvent,
} from "../__fixtures__/testUtils";

beforeEach(() => {
  reset();
});

describe("KeyboardAwareScrollView — refocus same input", () => {
  // Input B: point = 695.67 + 47 = 742.67
  //   relativeScrollTo = 312 - (928 - 742.67) + 62 = 188.67

  describe("iOS 15: refocus after keyboard hide", () => {
    it("should use fresh selection data on refocus", async () => {
      await renderKeyboardAwareScrollView();
      mockInput.value = inputEvent(INPUT_TARGET_B, INPUT_LAYOUT_B);

      // ---- First focus (cursor at y=47) ----
      mockKeyboardHandlers.current.onStart(
        kbEvent(KEYBOARD_HEIGHT, INPUT_TARGET_B),
      );
      mockSelectionHandler.current(selectionEvent(INPUT_TARGET_B, 47, 0));
      mockKeyboardHandlers.current.onMove(
        kbEvent(KEYBOARD_HEIGHT, INPUT_TARGET_B),
      );
      mockKeyboardHandlers.current.onEnd(
        kbEvent(KEYBOARD_HEIGHT, INPUT_TARGET_B),
      );
      mockOffset.value = 189;

      // ---- Keyboard hide ----
      mockKeyboardHandlers.current.onStart(kbEvent(0, INPUT_TARGET_B));
      mockKeyboardHandlers.current.onEnd(kbEvent(0, INPUT_TARGET_B));
      mockOffset.value = 0;

      // ---- Second focus (cursor moved to y=20) ----
      mockScrollTo.mockClear();

      mockKeyboardHandlers.current.onStart(
        kbEvent(KEYBOARD_HEIGHT, INPUT_TARGET_B),
      );
      mockSelectionHandler.current(selectionEvent(INPUT_TARGET_B, 20, 5));
      mockKeyboardHandlers.current.onMove(
        kbEvent(KEYBOARD_HEIGHT, INPUT_TARGET_B),
      );

      // point = 695.67 + 20 = 715.67
      // relativeScrollTo = 312 - (928 - 715.67) + 62 = 161.67
      expect(lastScrollToY()).toBeCloseTo(161.67, 0);

      mockKeyboardHandlers.current.onEnd(
        kbEvent(KEYBOARD_HEIGHT, INPUT_TARGET_B),
      );
    });
  });

  describe("Android: selection not re-emitted on refocus", () => {
    it("should use stale selection as fallback", async () => {
      await renderKeyboardAwareScrollView();
      mockInput.value = inputEvent(INPUT_TARGET_B, INPUT_LAYOUT_B);

      // ---- First focus (selection arrives) ----
      mockSelectionHandler.current(selectionEvent(INPUT_TARGET_B, 47, 0));
      mockKeyboardHandlers.current.onStart(
        kbEvent(KEYBOARD_HEIGHT, INPUT_TARGET_B),
      );
      mockKeyboardHandlers.current.onMove(
        kbEvent(KEYBOARD_HEIGHT, INPUT_TARGET_B),
      );
      mockKeyboardHandlers.current.onEnd(
        kbEvent(KEYBOARD_HEIGHT, INPUT_TARGET_B),
      );
      mockOffset.value = 189;

      // ---- Keyboard hide ----
      mockKeyboardHandlers.current.onStart(kbEvent(0, INPUT_TARGET_B));
      mockKeyboardHandlers.current.onEnd(kbEvent(0, INPUT_TARGET_B));
      mockOffset.value = 0;

      // ---- Second focus (NO selection event — Android behavior) ----
      mockScrollTo.mockClear();

      mockKeyboardHandlers.current.onStart(
        kbEvent(KEYBOARD_HEIGHT, INPUT_TARGET_B),
      );
      // No selectionHandler call — Android doesn't re-emit for same cursor
      mockKeyboardHandlers.current.onMove(
        kbEvent(KEYBOARD_HEIGHT, INPUT_TARGET_B),
      );

      // Must use stale selection (height=47), NOT full input height (60.33)
      expect(lastScrollToY()).toBeCloseTo(188.67, 0);

      mockKeyboardHandlers.current.onEnd(
        kbEvent(KEYBOARD_HEIGHT, INPUT_TARGET_B),
      );
    });
  });
});