{
  "version": 3,
  "sources": ["../../../src/useLaze.tsx"],
  "sourcesContent": ["import type { Ref, UnwrapRef } from 'vue';\nimport { readonly, ref, watchEffect } from 'vue';\n\nexport interface Laze<T extends HTMLElement> {\n  ref: Ref<UnwrapRef<T> | null>;\n  visible: Ref<boolean>;\n}\n\nexport interface LazeOptions {\n  refresh?: boolean | Ref<boolean>;\n}\n\nexport default function useLaze<T extends HTMLElement>(\n  options?: LazeOptions,\n): Laze<T> {\n  const visible = ref(false);\n\n  // We use a reactive ref here so that the component\n  // re-renders if the host element changes, therefore\n  // re-evaluating our intersection logic\n  const container = ref<T | null>(null);\n\n  watchEffect(onCleanup => {\n    // If the host changed, make sure that\n    // visibility is set to false\n    visible.value = false;\n\n    let refresh = false;\n\n    if (options && options.refresh) {\n      refresh =\n        typeof options.refresh === 'boolean'\n          ? options.refresh\n          : options.refresh.value;\n    }\n\n    if (container.value) {\n      const current = container.value;\n\n      const observer = new IntersectionObserver(entries => {\n        for (const entry of entries) {\n          if (refresh) {\n            visible.value = entry.isIntersecting;\n          } else if (entry.isIntersecting) {\n            // Host intersected, set visibility to true\n            visible.value = true;\n\n            // Stop observing\n            observer.disconnect();\n          }\n        }\n      });\n\n      observer.observe(current);\n\n      onCleanup(() => {\n        observer.unobserve(current);\n        observer.disconnect();\n      });\n    }\n  });\n\n  return {\n    ref: container,\n    visible: readonly(visible),\n  };\n}\n"],
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