/**
 * Source for the null-rendering `TqCollapsibleTextOverflow` helper shipped into
 * every Next project's `_app` (via `injectSiblingIntoApp`, the same mechanism the
 * analytics tracker and nav active-link highlighter use).
 *
 * Why a global helper and not per-node JS: the Collapsible Text primitive
 * decomposes to plain elements — a clamped view (`-webkit-line-clamp`), an
 * expanded view, and Show more / See less labels gated by a boolean state. None
 * of that can know whether the text ACTUALLY overflows its clamp, because that
 * depends on the rendered content, the column width, and the font — a runtime
 * measurement. This helper measures each collapsed view (`scrollHeight >
 * clientHeight`) and stamps `data-tq-overflows` on the root; a CSS rule then
 * hides the Show more label when the content already fits, so short text gets no
 * dangling toggle. It re-measures on resize and on DOM changes (SPA route
 * changes, and the expand/collapse remounting the clamped view).
 *
 * Self-contained: pure DOM, no npm dependency, and a no-op on any page that has
 * no collapsible-text blocks.
 */
export declare const COLLAPSIBLE_TEXT_OVERFLOW_COMPONENT_SOURCE = "import React from 'react';\n\nvar STYLE_ID = 'tq-collapsible-text-overflow-style';\n// When a root is measured as NOT overflowing, its Show more label is hidden.\nvar STYLE_CONTENT =\n  '[data-tq-overflows=\"false\"] [data-tq-collapsible-more]{display:none !important;}';\n\nfunction ensureStyle() {\n  if (typeof document === 'undefined' || document.getElementById(STYLE_ID)) {\n    return;\n  }\n  var style = document.createElement('style');\n  style.id = STYLE_ID;\n  style.textContent = STYLE_CONTENT;\n  document.head.appendChild(style);\n}\n\nfunction measureRoot(root) {\n  // The clamped view is only in the DOM while collapsed. When expanded the Show\n  // more label is already gone (See less shows instead), so a missing clamp means\n  // \"leave the last measurement in place\" rather than forcing a false negative.\n  var clamp = root.querySelector('[data-tq-collapsible-clamp]');\n  if (!clamp) {\n    return;\n  }\n  var overflows = clamp.scrollHeight - clamp.clientHeight > 1;\n  root.setAttribute('data-tq-overflows', overflows ? 'true' : 'false');\n}\n\nfunction measureAll() {\n  if (typeof document === 'undefined') {\n    return;\n  }\n  var roots = document.querySelectorAll('[data-tq-collapsible-root]');\n  for (var i = 0; i < roots.length; i++) {\n    measureRoot(roots[i]);\n  }\n}\n\nexport default function TqCollapsibleTextOverflow() {\n  React.useEffect(function () {\n    if (typeof document === 'undefined' || typeof window === 'undefined') {\n      return undefined;\n    }\n    ensureStyle();\n\n    var frame = 0;\n    var schedule = function () {\n      if (frame) {\n        return;\n      }\n      frame = window.requestAnimationFrame(function () {\n        frame = 0;\n        measureAll();\n      });\n    };\n\n    // Initial pass (rAF so layout + web fonts have settled).\n    schedule();\n\n    window.addEventListener('resize', schedule);\n\n    // Re-measure when the DOM changes: client-side route changes, async content,\n    // and the expand/collapse conditional remounting the clamped view.\n    var observer =\n      typeof MutationObserver !== 'undefined'\n        ? new MutationObserver(function () {\n            schedule();\n          })\n        : null;\n    if (observer && document.body) {\n      observer.observe(document.body, { childList: true, subtree: true });\n    }\n\n    return function () {\n      if (frame) {\n        window.cancelAnimationFrame(frame);\n      }\n      window.removeEventListener('resize', schedule);\n      if (observer) {\n        observer.disconnect();\n      }\n    };\n  }, []);\n\n  return null;\n}\n";
//# sourceMappingURL=collapsible-text-overflow-component.d.ts.map