{
  "version": 3,
  "sources": ["../src/modules/idle.js"],
  "sourcesContent": ["// zelvior-runtime/idle -- requestIdleCallback with a real fallback chain.\n// Plain window.requestIdleCallback is absent on Safari (all versions) and\n// on IE/old Edge; this falls back to setTimeout(0) rather than assuming\n// the API exists. ESM source of truth; bundled by build.mjs.\n\nvar hasRic = typeof window !== 'undefined' && typeof window.requestIdleCallback === 'function';\nvar SHIM_BUDGET_MS = 8;\n\nfunction shimDeadline(start, timeoutHit) {\n  return {\n    didTimeout: !!timeoutHit,\n    timeRemaining: function () {\n      var left = SHIM_BUDGET_MS - (Date.now() - start);\n      return left > 0 ? left : 0;\n    }\n  };\n}\n\n/** requestIdleCallback with a setTimeout-based fallback. Returns a cancel function. */\nexport function onIdle(fn, opts) {\n  if (hasRic) {\n    var id = requestIdleCallback(fn, opts || { timeout: 200 });\n    return function cancel() { cancelIdleCallback(id); };\n  }\n  var start = Date.now();\n  var timer = setTimeout(function () { fn(shimDeadline(start, true)); }, 1);\n  return function cancel() { clearTimeout(timer); };\n}\n\n/**\n * Run `work(item, index)` over `items` in idle-time chunks, never blocking\n * the main thread past the available idle budget. Calls `onDone()` when\n * every item has been processed.\n */\nexport function idleEach(items, work, onDone) {\n  var i = 0, n = items.length;\n  function step(deadline) {\n    var t = deadline && deadline.timeRemaining ? deadline.timeRemaining() : SHIM_BUDGET_MS;\n    while (i < n && t > 1) {\n      work(items[i], i);\n      i++;\n      t = deadline && deadline.timeRemaining ? deadline.timeRemaining() : t - 1;\n    }\n    if (i < n) onIdle(step, { timeout: 300 });\n    else if (onDone) onDone();\n  }\n  onIdle(step);\n}\n\nexport var supported = hasRic;\n"],
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  "names": ["idle_exports", "__export", "idleEach", "onIdle", "supported", "__toCommonJS", "hasRic", "SHIM_BUDGET_MS", "shimDeadline", "start", "timeoutHit", "left", "fn", "opts", "id", "timer", "items", "work", "onDone", "i", "n", "step", "deadline", "t"]
}