{"version":3,"file":"scrollbar2.mjs","sources":["../../../../../../packages/components/scrollbar/src/scrollbar.vue"],"sourcesContent":["<template>\n  <div ref=\"scrollbarRef\" :class=\"ns.b()\">\n    <div ref=\"wrapRef\" :class=\"wrapKls\" :style=\"style\" @scroll=\"handleScroll\">\n      <component\n        :is=\"tag\"\n        ref=\"resizeRef\"\n        :class=\"resizeKls\"\n        :style=\"viewStyle\"\n      >\n        <slot />\n      </component>\n    </div>\n    <template v-if=\"!native\">\n      <bar\n        ref=\"barRef\"\n        :height=\"sizeHeight\"\n        :width=\"sizeWidth\"\n        :always=\"always\"\n        :ratio-x=\"ratioX\"\n        :ratio-y=\"ratioY\"\n      />\n    </template>\n  </div>\n</template>\n<script lang=\"ts\" setup>\nimport {\n  computed,\n  nextTick,\n  onMounted,\n  onUpdated,\n  provide,\n  reactive,\n  ref,\n  watch,\n} from 'vue'\nimport { useEventListener, useResizeObserver } from '@vueuse/core'\nimport { addUnit, debugWarn, isNumber, isObject } from '@element-plus/utils'\nimport { useNamespace } from '@element-plus/hooks'\nimport { GAP } from './util'\nimport Bar from './bar.vue'\nimport { scrollbarContextKey } from './constants'\nimport { scrollbarEmits, scrollbarProps } from './scrollbar'\nimport type { BarInstance } from './bar'\nimport type { CSSProperties, StyleValue } from 'vue'\n\nconst COMPONENT_NAME = 'ElScrollbar'\n\ndefineOptions({\n  name: COMPONENT_NAME,\n})\n\nconst props = defineProps(scrollbarProps)\nconst emit = defineEmits(scrollbarEmits)\n\nconst ns = useNamespace('scrollbar')\n\nlet stopResizeObserver: (() => void) | undefined = undefined\nlet stopResizeListener: (() => void) | undefined = undefined\n\nconst scrollbarRef = ref<HTMLDivElement>()\nconst wrapRef = ref<HTMLDivElement>()\nconst resizeRef = ref<HTMLElement>()\n\nconst sizeWidth = ref('0')\nconst sizeHeight = ref('0')\nconst barRef = ref<BarInstance>()\nconst ratioY = ref(1)\nconst ratioX = ref(1)\n\nconst style = computed<StyleValue>(() => {\n  const style: CSSProperties = {}\n  if (props.height) style.height = addUnit(props.height)\n  if (props.maxHeight) style.maxHeight = addUnit(props.maxHeight)\n  return [props.wrapStyle, style]\n})\n\nconst wrapKls = computed(() => {\n  return [\n    props.wrapClass,\n    ns.e('wrap'),\n    { [ns.em('wrap', 'hidden-default')]: !props.native },\n  ]\n})\n\nconst resizeKls = computed(() => {\n  return [ns.e('view'), props.viewClass]\n})\n\nconst handleScroll = () => {\n  if (wrapRef.value) {\n    barRef.value?.handleScroll(wrapRef.value)\n\n    emit('scroll', {\n      scrollTop: wrapRef.value.scrollTop,\n      scrollLeft: wrapRef.value.scrollLeft,\n    })\n  }\n}\n\n// TODO: refactor method overrides, due to script setup dts\n// @ts-nocheck\nfunction scrollTo(xCord: number, yCord?: number): void\nfunction scrollTo(options: ScrollToOptions): void\nfunction scrollTo(arg1: unknown, arg2?: number) {\n  if (isObject(arg1)) {\n    wrapRef.value!.scrollTo(arg1)\n  } else if (isNumber(arg1) && isNumber(arg2)) {\n    wrapRef.value!.scrollTo(arg1, arg2)\n  }\n}\n\nconst setScrollTop = (value: number) => {\n  if (!isNumber(value)) {\n    debugWarn(COMPONENT_NAME, 'value must be a number')\n    return\n  }\n  wrapRef.value!.scrollTop = value\n}\n\nconst setScrollLeft = (value: number) => {\n  if (!isNumber(value)) {\n    debugWarn(COMPONENT_NAME, 'value must be a number')\n    return\n  }\n  wrapRef.value!.scrollLeft = value\n}\n\nconst update = () => {\n  if (!wrapRef.value) return\n  const offsetHeight = wrapRef.value.offsetHeight - GAP\n  const offsetWidth = wrapRef.value.offsetWidth - GAP\n\n  const originalHeight = offsetHeight ** 2 / wrapRef.value.scrollHeight\n  const originalWidth = offsetWidth ** 2 / wrapRef.value.scrollWidth\n  const height = Math.max(originalHeight, props.minSize)\n  const width = Math.max(originalWidth, props.minSize)\n\n  ratioY.value =\n    originalHeight /\n    (offsetHeight - originalHeight) /\n    (height / (offsetHeight - height))\n  ratioX.value =\n    originalWidth /\n    (offsetWidth - originalWidth) /\n    (width / (offsetWidth - width))\n\n  sizeHeight.value = height + GAP < offsetHeight ? `${height}px` : ''\n  sizeWidth.value = width + GAP < offsetWidth ? `${width}px` : ''\n}\n\nwatch(\n  () => props.noresize,\n  (noresize) => {\n    if (noresize) {\n      stopResizeObserver?.()\n      stopResizeListener?.()\n    } else {\n      ;({ stop: stopResizeObserver } = useResizeObserver(resizeRef, update))\n      stopResizeListener = useEventListener('resize', update)\n    }\n  },\n  { immediate: true }\n)\n\nwatch(\n  () => [props.maxHeight, props.height],\n  () => {\n    if (!props.native)\n      nextTick(() => {\n        update()\n        if (wrapRef.value) {\n          barRef.value?.handleScroll(wrapRef.value)\n        }\n      })\n  }\n)\n\nprovide(\n  scrollbarContextKey,\n  reactive({\n    scrollbarElement: scrollbarRef,\n    wrapElement: wrapRef,\n  })\n)\n\nonMounted(() => {\n  if (!props.native)\n    nextTick(() => {\n      update()\n    })\n})\nonUpdated(() => update())\n\ndefineExpose({\n  /** @description scrollbar wrap ref */\n  wrapRef,\n  /** @description update scrollbar state manually */\n  update,\n  /** @description scrolls to a particular set of coordinates */\n  scrollTo,\n  /** @description set distance to scroll top */\n  setScrollTop,\n  /** @description set distance to scroll left */\n  setScrollLeft,\n  /** @description handle scroll event */\n  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