Function registerInput

core/src/utils/input-shims/input-shims.ts:61–104

(componentEl: HTMLElement)

  const keyboardResizeMode = await Keyboard.getResizeMode();

  const registerInput = async (componentEl: HTMLElement) => {
    await new Promise((resolve) => componentOnReady(componentEl, resolve));

    const inputRoot = componentEl.shadowRoot || componentEl;
    const inputEl = inputRoot.querySelector('input') || inputRoot.querySelector('textarea');
    const scrollEl = findClosestIonContent(componentEl);
    const footerEl = !scrollEl ? (componentEl.closest('ion-footer') as HTMLIonFooterElement | null) : null;

    if (!inputEl) {
      return;
    }

    if (HIDE_CARET && !!scrollEl && hideCaret && !hideCaretMap.has(componentEl)) {
      const rmFn = enableHideCaretOnScroll(componentEl, inputEl, scrollEl);
      hideCaretMap.set(componentEl, rmFn);
    }

    /**
     * date/datetime-locale inputs on mobile devices show date picker
     * overlays instead of keyboards. As a result, scroll assist is
     * not needed. This also works around a bug in iOS <16 where
     * scroll assist causes the browser to lock up. See FW-1997.
     */
    const isDateInput = inputEl.type === 'date' || inputEl.type === 'datetime-local';
    if (
      SCROLL_ASSIST &&
      !isDateInput &&
      (!!scrollEl || !!footerEl) &&
      scrollAssist &&
      !scrollAssistMap.has(componentEl)
    ) {
      const rmFn = enableScrollAssist(
        componentEl,
        inputEl,
        scrollEl,
        footerEl,
        keyboardHeight,
        scrollPadding,
        keyboardResizeMode,
        isAndroid
      );
      scrollAssistMap.set(componentEl, rmFn);
    }
  };

  const unregisterInput = (componentEl: HTMLElement) => {
    if (HIDE_CARET && hideCaret) {