Function dispatchClick

src/ink/hit-test.ts:49–89

(
  root: DOMElement,
  col: number,
  row: number,
  cellIsBlank = false,
)

 * true if at least one onClick handler fired.
 */
export function dispatchClick(
  root: DOMElement,
  col: number,
  row: number,
  cellIsBlank = false,
): boolean {
  let target: DOMElement | undefined = hitTest(root, col, row) ?? undefined
  if (!target) return false

  // Click-to-focus: find the closest focusable ancestor and focus it.
  // root is always ink-root, which owns the FocusManager.
  if (root.focusManager) {
    let focusTarget: DOMElement | undefined = target
    while (focusTarget) {
      if (typeof focusTarget.attributes['tabIndex'] === 'number') {
        root.focusManager.handleClickFocus(focusTarget)
        break
      }
      focusTarget = focusTarget.parentNode
    }
  }
  const event = new ClickEvent(col, row, cellIsBlank)
  let handled = false
  while (target) {
    const handler = target._eventHandlers?.onClick as
      | ((event: ClickEvent) => void)
      | undefined
    if (handler) {
      handled = true
      const rect = nodeCache.get(target)
      if (rect) {
        event.localCol = col - rect.x
        event.localRow = row - rect.y
      }
      handler(event)
      if (event.didStopImmediatePropagation()) return true
    }
    target = target.parentNode
  }
  return handled
}

/**
 * Fire onMouseEnter/onMouseLeave as the pointer moves. Like DOM