{"version":3,"file":"ScrollAreaScrollbarVisible.js","sources":["../../src/ScrollArea/ScrollAreaScrollbarVisible.vue"],"sourcesContent":["<script lang=\"ts\">\nimport type { Ref } from 'vue'\nimport type { Direction, Sizes } from './types'\nimport { createContext, useForwardExpose } from '@/shared'\n\nexport interface ScrollAreaScrollbarVisibleContext {\n  sizes: Ref<Sizes>\n  hasThumb: Ref<boolean>\n  handleWheelScroll: (event: WheelEvent, payload: number) => void\n  handleThumbDown: (\n    event: MouseEvent,\n    payload: { x: number, y: number }\n  ) => void\n  handleThumbUp: (event: MouseEvent) => void\n  handleSizeChange: (payload: Sizes) => void\n  onThumbPositionChange: () => void\n  onDragScroll: (payload: number) => void\n  onThumbChange: (element: HTMLElement) => void\n}\n\nexport const [injectScrollAreaScrollbarVisibleContext, provideScrollAreaScrollbarVisibleContext]\n  = createContext<ScrollAreaScrollbarVisibleContext>('ScrollAreaScrollbarVisible')\n</script>\n\n<script setup lang=\"ts\">\nimport { computed, ref } from 'vue'\nimport { injectScrollAreaRootContext } from './ScrollAreaRoot.vue'\nimport { injectScrollAreaScrollbarContext } from './ScrollAreaScrollbar.vue'\nimport ScrollAreaScrollbarX from './ScrollAreaScrollbarX.vue'\nimport ScrollAreaScrollbarY from './ScrollAreaScrollbarY.vue'\nimport {\n  getScrollPositionFromPointer,\n  getThumbOffsetFromScroll,\n  getThumbRatio,\n  isScrollingWithinScrollbarBounds,\n} from './utils'\n\nconst rootContext = injectScrollAreaRootContext()\nconst scrollbarContext = injectScrollAreaScrollbarContext()\nconst { forwardRef } = useForwardExpose()\n\nconst sizes = ref<Sizes>({\n  content: 0,\n  viewport: 0,\n  scrollbar: { size: 0, paddingStart: 0, paddingEnd: 0 },\n})\n\nconst hasThumb = computed(() => {\n  const thumbRatio = getThumbRatio(sizes.value.viewport, sizes.value.content)\n  return Boolean(thumbRatio > 0 && thumbRatio < 1)\n})\n\nconst thumbRef = ref<HTMLElement>()\nconst pointerOffset = ref(0)\n\nfunction handleWheelScroll(event: WheelEvent, payload: number) {\n  if (isShowingScrollbarX.value) {\n    const scrollPos = rootContext.viewport.value!.scrollLeft + event.deltaY\n\n    rootContext.viewport.value!.scrollLeft = scrollPos\n    // prevent window scroll when wheeling on scrollbar\n    if (isScrollingWithinScrollbarBounds(scrollPos, payload))\n      event.preventDefault()\n  }\n  else {\n    const scrollPos = rootContext.viewport.value!.scrollTop + event.deltaY\n\n    rootContext.viewport.value!.scrollTop = scrollPos\n    // prevent window scroll when wheeling on scrollbar\n    if (isScrollingWithinScrollbarBounds(scrollPos, payload))\n      event.preventDefault()\n  }\n}\n\nfunction handleThumbDown(event: MouseEvent, payload: { x: number, y: number }) {\n  if (isShowingScrollbarX.value)\n    pointerOffset.value = payload.x\n  else pointerOffset.value = payload.y\n}\nfunction handleThumbUp(event: MouseEvent) {\n  pointerOffset.value = 0\n}\n\nfunction handleSizeChange(payload: Sizes) {\n  sizes.value = payload\n}\n\nfunction getScrollPosition(pointerPos: number, dir?: Direction) {\n  return getScrollPositionFromPointer(\n    pointerPos,\n    pointerOffset.value,\n    sizes.value,\n    dir,\n  )\n}\n\nconst isShowingScrollbarX = computed(\n  () => scrollbarContext.isHorizontal.value,\n)\n\nfunction onDragScroll(payload: number) {\n  if (isShowingScrollbarX.value) {\n    rootContext.viewport.value!.scrollLeft = getScrollPosition(\n      payload,\n      rootContext.dir.value,\n    )\n  }\n  else {\n    rootContext.viewport.value!.scrollTop = getScrollPosition(payload)\n  }\n}\n\nfunction onThumbPositionChange() {\n  if (isShowingScrollbarX.value) {\n    if (rootContext.viewport.value && thumbRef.value) {\n      const scrollPos = rootContext.viewport.value.scrollLeft\n      const offset = getThumbOffsetFromScroll(\n        scrollPos,\n        sizes.value,\n        rootContext.dir.value,\n      )\n      thumbRef.value.style.transform = `translate3d(${offset}px, 0, 0)`\n    }\n  }\n  else {\n    if (rootContext.viewport.value && thumbRef.value) {\n      const scrollPos = rootContext.viewport.value.scrollTop\n      const offset = getThumbOffsetFromScroll(scrollPos, sizes.value)\n      thumbRef.value.style.transform = `translate3d(0, ${offset}px, 0)`\n    }\n  }\n}\nfunction onThumbChange(element: HTMLElement) {\n  thumbRef.value = element\n}\n\nprovideScrollAreaScrollbarVisibleContext({\n  sizes,\n  hasThumb,\n  handleWheelScroll,\n  handleThumbDown,\n  handleThumbUp,\n  handleSizeChange,\n  onThumbPositionChange,\n  onThumbChange,\n  onDragScroll,\n})\n</script>\n\n<template>\n  <ScrollAreaScrollbarX\n    v-if=\"isShowingScrollbarX\"\n    v-bind=\"$attrs\"\n    :ref=\"forwardRef\"\n  >\n    <slot />\n  </ScrollAreaScrollbarX>\n  <ScrollAreaScrollbarY\n    v-else\n    v-bind=\"$attrs\"\n    :ref=\"forwardRef\"\n  >\n    <slot />\n  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