Function createToolShellController

src/ui/shared/tool-shell.ts:50–103

(options: CreateToolShellControllerOptions)

}

export function createToolShellController(options: CreateToolShellControllerOptions): ToolShellController {
  const { shell, toggleButton, initialExpanded, onToggle, onScrollAfterExpand, onRender } = options;
  let isExpanded = initialExpanded;
  let scrollTrackedForCurrentExpand = false;
  const shouldTrackScroll = typeof onScrollAfterExpand === 'function';

  const applyExpandedState = (nextExpanded: boolean): void => {
    const wasExpanded = isExpanded;
    isExpanded = nextExpanded;
    syncShellClasses(shell, isExpanded);
    syncExpandButton(toggleButton, isExpanded);
    if (!wasExpanded && isExpanded) {
      scrollTrackedForCurrentExpand = false;
    }
  };

  const toggle = (): void => {
    applyExpandedState(!isExpanded);
    onToggle?.(isExpanded);
    onRender?.();
  };

  const handleScroll = (event?: Event): void => {
    if (!isExpanded || scrollTrackedForCurrentExpand) {
      return;
    }
    const targetNode = event?.target instanceof Node ? event.target : null;
    if (targetNode && shell && !shell.contains(targetNode)) {
      return;
    }
    scrollTrackedForCurrentExpand = true;
    onScrollAfterExpand?.();
  };

  applyExpandedState(isExpanded);
  toggleButton?.addEventListener('click', toggle);
  if (shouldTrackScroll) {
    shell?.addEventListener('scroll', handleScroll, { passive: true });
    document.addEventListener('scroll', handleScroll, { passive: true, capture: true });
  }

  return {
    getExpanded: () => isExpanded,
    setExpanded: applyExpandedState,
    toggle,
    dispose: () => {
      toggleButton?.removeEventListener('click', toggle);
      if (shouldTrackScroll) {
        shell?.removeEventListener('scroll', handleScroll);
        document.removeEventListener('scroll', handleScroll, true);
      }
    },
  };
}

export function createCompactRowShellController(options: CreateCompactRowShellControllerOptions): ToolShellController {
  const { shell, compactRow, initialExpanded, onToggle, onScrollAfterExpand, onRender } = options;