{"version":3,"file":"affix2.mjs","sources":["../../../../../../packages/components/affix/src/affix.vue"],"sourcesContent":["<template>\n  <div ref=\"root\" :class=\"ns.b()\" :style=\"rootStyle\">\n    <div :class=\"{ [ns.m('fixed')]: fixed }\" :style=\"affixStyle\">\n      <slot />\n    </div>\n  </div>\n</template>\n\n<script lang=\"ts\" setup>\nimport { computed, onMounted, ref, shallowRef, watch, watchEffect } from 'vue'\nimport {\n  useElementBounding,\n  useEventListener,\n  useWindowSize,\n} from '@vueuse/core'\nimport { addUnit, getScrollContainer, throwError } from '@element-plus/utils'\nimport { useNamespace } from '@element-plus/hooks'\nimport { affixEmits, affixProps } from './affix'\nimport type { CSSProperties } from 'vue'\n\nconst COMPONENT_NAME = 'ElAffix'\ndefineOptions({\n  name: COMPONENT_NAME,\n})\n\nconst props = defineProps(affixProps)\nconst emit = defineEmits(affixEmits)\n\nconst ns = useNamespace('affix')\n\nconst target = shallowRef<HTMLElement>()\nconst root = shallowRef<HTMLDivElement>()\nconst scrollContainer = shallowRef<HTMLElement | Window>()\nconst { height: windowHeight } = useWindowSize()\nconst {\n  height: rootHeight,\n  width: rootWidth,\n  top: rootTop,\n  bottom: rootBottom,\n  update: updateRoot,\n} = useElementBounding(root, { windowScroll: false })\nconst targetRect = useElementBounding(target)\n\nconst fixed = ref(false)\nconst scrollTop = ref(0)\nconst transform = ref(0)\n\nconst rootStyle = computed<CSSProperties>(() => {\n  return {\n    height: fixed.value ? 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difference : 0\n    } else {\n      fixed.value = props.offset > rootTop.value\n    }\n  } else if (props.target) {\n    const difference =\n      windowHeight.value -\n      targetRect.top.value -\n      props.offset -\n      rootHeight.value\n    fixed.value =\n      windowHeight.value - props.offset < rootBottom.value &&\n      windowHeight.value > targetRect.top.value\n    transform.value = difference < 0 ? -difference : 0\n  } else {\n    fixed.value = windowHeight.value - props.offset < rootBottom.value\n  }\n}\n\nconst handleScroll = () => {\n  updateRoot()\n  emit('scroll', {\n    scrollTop: scrollTop.value,\n    fixed: fixed.value,\n  })\n}\n\nwatch(fixed, (val) => emit('change', val))\n\nonMounted(() => {\n  if (props.target) {\n    target.value =\n      document.querySelector<HTMLElement>(props.target) ?? undefined\n    if (!target.value)\n      throwError(COMPONENT_NAME, `Target is not existed: ${props.target}`)\n  } else {\n    target.value = document.documentElement\n  }\n  scrollContainer.value = getScrollContainer(root.value!, true)\n  updateRoot()\n})\n\nuseEventListener(scrollContainer, 'scroll', handleScroll)\nwatchEffect(update)\n\ndefineExpose({\n  /** @description update affix status */\n  update,\n  /** @description update rootRect info */\n  updateRoot,\n})\n</script>\n"],"names":[],"mappings":";;;;;;;;;;;;mCAqBc,CAAA;AAAA,EACZ,IAAM,EAAA,cAAA;AACR;;;;;;;AAKA,IAAM,MAAA,EAAA,GAAK,aAAa,OAAO,CAAA,CAAA;AAE/B,IAAA,MAAM,SAAS,UAAwB,EAAA,CAAA;AACvC,IAAA,MAAM,OAAO,UAA2B,EAAA,CAAA;AACxC,IAAA,MAAM,kBAAkB,UAAiC,EAAA,CAAA;AACzD,IAAM,MAAA,EAAE,MAAQ,EAAA,YAAA,EAAA,GAAiB,aAAc,EAAA,CAAA;AAC/C,IAAM,MAAA;AAAA,MACJ,MAAQ,EAAA,UAAA;AAAA,MACR,KAAO,EAAA,SAAA;AAAA,MACP,GAAK,EAAA,OAAA;AAAA,MACL,MAAQ,EAAA,UAAA;AAAA,MACR,MAAQ,EAAA,UAAA;AAAA,KAAA,GACN,kBAAmB,CAAA,IAAA,EAAM,EAAE,YAAA,EAAc,OAAO,CAAA,CAAA;AACpD,IAAM,MAAA,UAAA,GAAa,mBAAmB,MAAM,CAAA,CAAA;AAE5C,IAAM,MAAA,KAAA,GAAQ,IAAI,KAAK,CAAA,CAAA;AACvB,IAAM,MAAA,SAAA,GAAY,IAAI,CAAC,CAAA,CAAA;AACvB,IAAM,MAAA,SAAA,GAAY,IAAI,CAAC,CAAA,CAAA;AAEvB,IAAM,MAAA,SAAA,GAAY,SAAwB,MAAM;AAC9C,MAAO,OAAA;AAAA,QACL,MAAQ,EAAA,KAAA,CAAM,KAAQ,GAAA,CAAA,EAAG,WAAW,KAAY,CAAA,EAAA,CAAA,GAAA,EAAA;AAAA,QAChD,KAAO,EAAA,KAAA,CAAM,KAAQ,GAAA,CAAA,EAAG,UAAU,KAAY,CAAA,EAAA,CAAA,GAAA,EAAA;AAAA,OAChD,CAAA;AAAA,KACD,CAAA,CAAA;AAED,IAAM,MAAA,UAAA,GAAa,SAAwB,MAAM;AAC/C,MAAA,IAAI,CAAC,KAAM,CAAA,KAAA;AAAO,QAAA,OAAO,EAAC,CAAA;AAE1B,MAAA,MAAM,SAAS,KAAM,CAAA,MAAA,GAAS,OAAQ,CAAA,KAAA,CAAM,MAAM,CAAI,GAAA,CAAA,CAAA;AACtD,MAAO,OAAA;AAAA,QACL,MAAA,EAAQ,GAAG,UAAW,CAAA,KAAA,CAAA,EAAA,CAAA;AAAA,QACtB,KAAA,EAAO,GAAG,SAAU,CAAA,KAAA,CAAA,EAAA,CAAA;AAAA,QACpB,GAAK,EAAA,KAAA,CAAM,QAAa,KAAA,KAAA,GAAQ,MAAS,GAAA,EAAA;AAAA,QACzC,MAAQ,EAAA,KAAA,CAAM,QAAa,KAAA,QAAA,GAAW,MAAS,GAAA,EAAA;AAAA,QAC/C,SAAW,EAAA,SAAA,CAAU,KAAQ,GAAA,CAAA,WAAA,EAAc,UAAU,KAAa,CAAA,GAAA,CAAA,GAAA,EAAA;AAAA,QAClE,QAAQ,KAAM,CAAA,MAAA;AAAA,OAChB,CAAA;AAAA,KACD,CAAA,CAAA;AAED,IAAA,MAAM,SAAS,MAAM;AACnB,MAAA,IAAI,CAAC,eAAgB,CAAA,KAAA;AAAO,QAAA,OAAA;AAE5B,MAAU,SAAA,CAAA,KAAA,GACR,gBAAgB,KAAiB,YAAA,MAAA,GAC7B,SAAS,eAAgB,CAAA,SAAA,GACzB,eAAgB,CAAA,KAAA,CAAM,SAAa,IAAA,CAAA,CAAA;AAEzC,MAAI,IAAA,KAAA,CAAM,aAAa,KAAO,EAAA;AAC5B,QAAA,IAAI,MAAM,MAAQ,EAAA;AAChB,UAAA,MAAM,aACJ,UAAW,CAAA,MAAA,CAAO,KAAQ,GAAA,KAAA,CAAM,SAAS,UAAW,CAAA,KAAA,CAAA;AACtD,UAAA,KAAA,CAAM,QAAQ,KAAM,CAAA,MAAA,GAAS,QAAQ,KAAS,IAAA,UAAA,CAAW,OAAO,KAAQ,GAAA,CAAA,CAAA;AACxE,UAAU,SAAA,CAAA,KAAA,GAAQ,UAAa,GAAA,CAAA,GAAI,UAAa,GAAA,CAAA,CAAA;AAAA,SAC3C,MAAA;AACL,UAAM,KAAA,CAAA,KAAA,GAAQ,KAAM,CAAA,MAAA,GAAS,OAAQ,CAAA,KAAA,CAAA;AAAA,SACvC;AAAA,OACF,MAAA,IAAW,MAAM,MAAQ,EAAA;AACvB,QAAM,MAAA,UAAA,GACJ,aAAa,KACb,GAAA,UAAA,CAAW,IAAI,KACf,GAAA,KAAA,CAAM,SACN,UAAW,CAAA,KAAA,CAAA;AACb,QAAM,KAAA,CAAA,KAAA,GACJ,YAAa,CAAA,KAAA,GAAQ,KAAM,CAAA,MAAA,GAAS,WAAW,KAC/C,IAAA,YAAA,CAAa,KAAQ,GAAA,UAAA,CAAW,GAAI,CAAA,KAAA,CAAA;AACtC,QAAA,SAAA,CAAU,KAAQ,GAAA,UAAA,GAAa,CAAI,GAAA,CAAC,UAAa,GAAA,CAAA,CAAA;AAAA,OAC5C,MAAA;AACL,QAAA,KAAA,CAAM,KAAQ,GAAA,YAAA,CAAa,KAAQ,GAAA,KAAA,CAAM,SAAS,UAAW,CAAA,KAAA,CAAA;AAAA,OAC/D;AAAA,KACF,CAAA;AAEA,IAAA,MAAM,eAAe,MAAM;AACzB,MAAW,UAAA,EAAA,CAAA;AACX,MAAA,IAAA,CAAK,QAAU,EAAA;AAAA,QACb,WAAW,SAAU,CAAA,KAAA;AAAA,QACrB,OAAO,KAAM,CAAA,KAAA;AAAA,OACd,CAAA,CAAA;AAAA,KACH,CAAA;AAEA,IAAA,KAAA,CAAM,OAAO,CAAC,GAAA,KAAQ,IAAK,CAAA,QAAA,EAAU,GAAG,CAAC,CAAA,CAAA;AAEzC,IAAA,SAAA,CAAU,MAAM;AACd,MAAA,IAAI;AACF,MAAA,IAAA,KAAO,CACL,MAAA,EAAA;AACF,QAAA,MAAY,CAAA,KAAA,GAAA,CAAA,EAAA,GAAA,QAAA,CAAA,aAAA,CAAA,KAAA,CAAA,MAAA,CAAA,KAAA,IAAA,GAAA,EAAA,GAAA,KAAA,CAAA,CAAA;AACV,QAAW,IAAA,CAAA,MAAA,CAAA,KAAA;AAAwD,UAChE,UAAA,CAAA,cAAA,EAAA,CAAA,uBAAA,EAAA,KAAA,CAAA,MAAA,CAAA,CAAA,CAAA,CAAA;AACL,OAAA,MAAA;AAAwB,QAC1B,MAAA,CAAA,KAAA,GAAA,QAAA,CAAA,eAAA,CAAA;AACA,OAAA;AACA,MAAW,eAAA,CAAA,KAAA,GAAA,kBAAA,CAAA,IAAA,CAAA,KAAA,EAAA,IAAA,CAAA,CAAA;AAAA,MACZ,UAAA,EAAA,CAAA;AAED,KAAiB,CAAA,CAAA;AACjB,IAAA,gBAAkB,CAAA,eAAA,EAAA,QAAA,EAAA,YAAA,CAAA,CAAA;AAElB,IAAa,WAAA,CAAA,MAAA,CAAA,CAAA;AAAA,IAEX,MAAA,CAAA;AAAA,MAEA,MAAA;AAAA,MACD,UAAA;;;;;;;;;;;;;;;;;;;;;;;"}