{"version":3,"file":"scrollStrategies.mjs","names":["effectScope","onScopeDispose","watchEffect","requestNewFrame","convertToUnit","getScrollParents","hasScrollbar","IN_BROWSER","propsFactory","scrollStrategies","none","close","closeScrollStrategy","block","blockScrollStrategy","reposition","repositionScrollStrategy","makeScrollStrategyProps","scrollStrategy","type","String","Function","default","validator","val","useScrollStrategies","props","data","scope","stop","isActive","value","Promise","resolve","setTimeout","active","run","onScroll","e","bindScroll","targetEl","contentEl","offsetParent","root","scrollElements","Set","contained","undefined","filter","el","classList","contains","scrollbarWidth","window","innerWidth","document","documentElement","offsetWidth","scrollableParent","add","forEach","i","style","setProperty","scrollLeft","scrollTop","x","parseFloat","getPropertyValue","y","scrollBehavior","removeProperty","remove","slow","raf","ric","update","start","performance","now","updateLocation","time","requestIdleCallback","cb","cancelAnimationFrame","requestAnimationFrame","cancelIdleCallback","addEventListener","passive","removeEventListener"],"sources":["../../../src/components/VOverlay/scrollStrategies.ts"],"sourcesContent":["// Utilities\nimport { effectScope, onScopeDispose, watchEffect } from 'vue'\nimport { requestNewFrame } from './requestNewFrame'\nimport { convertToUnit, getScrollParents, hasScrollbar, IN_BROWSER, propsFactory } from '@/util'\n\n// Types\nimport type { EffectScope, PropType, Ref } from 'vue'\n\nexport interface ScrollStrategyData {\n  root: Ref<HTMLElement | undefined>\n  contentEl: Ref<HTMLElement | undefined>\n  targetEl: Ref<HTMLElement | undefined>\n  isActive: Ref<boolean>\n  updateLocation: Ref<((e: Event) => void) | undefined>\n}\n\ntype ScrollStrategyFn = (data: ScrollStrategyData, props: StrategyProps, scope: EffectScope) => void\n\nconst scrollStrategies = {\n  none: null,\n  close: closeScrollStrategy,\n  block: blockScrollStrategy,\n  reposition: repositionScrollStrategy,\n}\n\nexport interface StrategyProps {\n  scrollStrategy: keyof typeof scrollStrategies | ScrollStrategyFn\n  contained: boolean | undefined\n}\n\nexport const makeScrollStrategyProps = propsFactory({\n  scrollStrategy: {\n    type: [String, Function] as PropType<StrategyProps['scrollStrategy']>,\n    default: 'block',\n    validator: (val: any) => typeof val === 'function' || val in scrollStrategies,\n  },\n}, 'VOverlay-scroll-strategies')\n\nexport function useScrollStrategies (\n  props: StrategyProps,\n  data: ScrollStrategyData\n) {\n  if (!IN_BROWSER) return\n\n  let scope: EffectScope | undefined\n  watchEffect(async () => {\n    scope?.stop()\n\n    if (!(data.isActive.value && props.scrollStrategy)) return\n\n    scope = effectScope()\n    await new Promise(resolve => setTimeout(resolve))\n    scope.active && scope.run(() => {\n      if (typeof props.scrollStrategy === 'function') {\n        props.scrollStrategy(data, props, scope!)\n      } else {\n        scrollStrategies[props.scrollStrategy]?.(data, props, scope!)\n      }\n    })\n  })\n\n  onScopeDispose(() => {\n    scope?.stop()\n  })\n}\n\nfunction closeScrollStrategy (data: ScrollStrategyData) {\n  function onScroll (e: Event) {\n    data.isActive.value = false\n  }\n\n  bindScroll(data.targetEl.value ?? data.contentEl.value, onScroll)\n}\n\nfunction blockScrollStrategy (data: ScrollStrategyData, props: StrategyProps) {\n  const offsetParent = data.root.value?.offsetParent\n  const scrollElements = [...new Set([\n    ...getScrollParents(data.targetEl.value, props.contained ? offsetParent : undefined),\n    ...getScrollParents(data.contentEl.value, props.contained ? offsetParent : undefined),\n  ])].filter(el => !el.classList.contains('v-overlay-scroll-blocked'))\n  const scrollbarWidth = window.innerWidth - document.documentElement.offsetWidth\n\n  const scrollableParent = (el => hasScrollbar(el) && el)(offsetParent || document.documentElement)\n  if (scrollableParent) {\n    data.root.value!.classList.add('v-overlay--scroll-blocked')\n  }\n\n  scrollElements.forEach((el, i) => {\n    el.style.setProperty('--v-body-scroll-x', convertToUnit(-el.scrollLeft))\n    el.style.setProperty('--v-body-scroll-y', convertToUnit(-el.scrollTop))\n\n    if (el !== document.documentElement) {\n      el.style.setProperty('--v-scrollbar-offset', convertToUnit(scrollbarWidth))\n    }\n\n    el.classList.add('v-overlay-scroll-blocked')\n  })\n\n  onScopeDispose(() => {\n    scrollElements.forEach((el, i) => {\n      const x = parseFloat(el.style.getPropertyValue('--v-body-scroll-x'))\n      const y = parseFloat(el.style.getPropertyValue('--v-body-scroll-y'))\n\n      const scrollBehavior = el.style.scrollBehavior\n\n      el.style.scrollBehavior = 'auto'\n      el.style.removeProperty('--v-body-scroll-x')\n      el.style.removeProperty('--v-body-scroll-y')\n      el.style.removeProperty('--v-scrollbar-offset')\n      el.classList.remove('v-overlay-scroll-blocked')\n\n      el.scrollLeft = -x\n      el.scrollTop = -y\n\n      el.style.scrollBehavior = scrollBehavior\n    })\n    if (scrollableParent) {\n      data.root.value!.classList.remove('v-overlay--scroll-blocked')\n    }\n  })\n}\n\nfunction repositionScrollStrategy (data: ScrollStrategyData, props: StrategyProps, scope: EffectScope) {\n  let slow = false\n  let raf = -1\n  let ric = -1\n\n  function update (e: Event) {\n    requestNewFrame(() => {\n      const start = performance.now()\n      data.updateLocation.value?.(e)\n      const time = performance.now() - start\n      slow = time / (1000 / 60) > 2\n    })\n  }\n\n  ric = (typeof requestIdleCallback === 'undefined' ? (cb: Function) => cb() : requestIdleCallback)(() => {\n    scope.run(() => {\n      bindScroll(data.targetEl.value ?? data.contentEl.value, e => {\n        if (slow) {\n          // If the position calculation is slow,\n          // defer updates until scrolling is finished.\n          // Browsers usually fire one scroll event per frame so\n          // we just wait until we've got two frames without an event\n          cancelAnimationFrame(raf)\n          raf = requestAnimationFrame(() => {\n            raf = requestAnimationFrame(() => {\n              update(e)\n            })\n          })\n        } else {\n          update(e)\n        }\n      })\n    })\n  })\n\n  onScopeDispose(() => {\n    typeof cancelIdleCallback !== 'undefined' && cancelIdleCallback(ric)\n    cancelAnimationFrame(raf)\n  })\n}\n\n/** @private */\nfunction bindScroll (el: HTMLElement | undefined, onScroll: (e: Event) => void) {\n  const scrollElements = [document, ...getScrollParents(el)]\n  scrollElements.forEach(el => {\n    el.addEventListener('scroll', onScroll, { passive: true })\n  })\n\n  onScopeDispose(() => {\n    scrollElements.forEach(el => {\n      el.removeEventListener('scroll', onScroll)\n    })\n  })\n}\n"],"mappings":"AAAA;AACA,SAASA,WAAW,EAAEC,cAAc,EAAEC,WAAW,QAAQ,KAAK;AAAA,SACrDC,eAAe;AAAA,SACfC,aAAa,EAAEC,gBAAgB,EAAEC,YAAY,EAAEC,UAAU,EAAEC,YAAY,gCAEhF;AAaA,MAAMC,gBAAgB,GAAG;EACvBC,IAAI,EAAE,IAAI;EACVC,KAAK,EAAEC,mBAAmB;EAC1BC,KAAK,EAAEC,mBAAmB;EAC1BC,UAAU,EAAEC;AACd,CAAC;AAOD,OAAO,MAAMC,uBAAuB,GAAGT,YAAY,CAAC;EAClDU,cAAc,EAAE;IACdC,IAAI,EAAE,CAACC,MAAM,EAAEC,QAAQ,CAA8C;IACrEC,OAAO,EAAE,OAAO;IAChBC,SAAS,EAAGC,GAAQ,IAAK,OAAOA,GAAG,KAAK,UAAU,IAAIA,GAAG,IAAIf;EAC/D;AACF,CAAC,EAAE,4BAA4B,CAAC;AAEhC,OAAO,SAASgB,mBAAmBA,CACjCC,KAAoB,EACpBC,IAAwB,EACxB;EACA,IAAI,CAACpB,UAAU,EAAE;EAEjB,IAAIqB,KAA8B;EAClC1B,WAAW,CAAC,YAAY;IACtB0B,KAAK,EAAEC,IAAI,CAAC,CAAC;IAEb,IAAI,EAAEF,IAAI,CAACG,QAAQ,CAACC,KAAK,IAAIL,KAAK,CAACR,cAAc,CAAC,EAAE;IAEpDU,KAAK,GAAG5B,WAAW,CAAC,CAAC;IACrB,MAAM,IAAIgC,OAAO,CAACC,OAAO,IAAIC,UAAU,CAACD,OAAO,CAAC,CAAC;IACjDL,KAAK,CAACO,MAAM,IAAIP,KAAK,CAACQ,GAAG,CAAC,MAAM;MAC9B,IAAI,OAAOV,KAAK,CAACR,cAAc,KAAK,UAAU,EAAE;QAC9CQ,KAAK,CAACR,cAAc,CAACS,IAAI,EAAED,KAAK,EAAEE,KAAM,CAAC;MAC3C,CAAC,MAAM;QACLnB,gBAAgB,CAACiB,KAAK,CAACR,cAAc,CAAC,GAAGS,IAAI,EAAED,KAAK,EAAEE,KAAM,CAAC;MAC/D;IACF,CAAC,CAAC;EACJ,CAAC,CAAC;EAEF3B,cAAc,CAAC,MAAM;IACnB2B,KAAK,EAAEC,IAAI,CAAC,CAAC;EACf,CAAC,CAAC;AACJ;AAEA,SAASjB,mBAAmBA,CAAEe,IAAwB,EAAE;EACtD,SAASU,QAAQA,CAAEC,CAAQ,EAAE;IAC3BX,IAAI,CAACG,QAAQ,CAACC,KAAK,GAAG,KAAK;EAC7B;EAEAQ,UAAU,CAACZ,IAAI,CAACa,QAAQ,CAACT,KAAK,IAAIJ,IAAI,CAACc,SAAS,CAACV,KAAK,EAAEM,QAAQ,CAAC;AACnE;AAEA,SAASvB,mBAAmBA,CAAEa,IAAwB,EAAED,KAAoB,EAAE;EAC5E,MAAMgB,YAAY,GAAGf,IAAI,CAACgB,IAAI,CAACZ,KAAK,EAAEW,YAAY;EAClD,MAAME,cAAc,GAAG,CAAC,GAAG,IAAIC,GAAG,CAAC,CACjC,GAAGxC,gBAAgB,CAACsB,IAAI,CAACa,QAAQ,CAACT,KAAK,EAAEL,KAAK,CAACoB,SAAS,GAAGJ,YAAY,GAAGK,SAAS,CAAC,EACpF,GAAG1C,gBAAgB,CAACsB,IAAI,CAACc,SAAS,CAACV,KAAK,EAAEL,KAAK,CAACoB,SAAS,GAAGJ,YAAY,GAAGK,SAAS,CAAC,CACtF,CAAC,CAAC,CAACC,MAAM,CAACC,EAAE,IAAI,CAACA,EAAE,CAACC,SAAS,CAACC,QAAQ,CAAC,0BAA0B,CAAC,CAAC;EACpE,MAAMC,cAAc,GAAGC,MAAM,CAACC,UAAU,GAAGC,QAAQ,CAACC,eAAe,CAACC,WAAW;EAE/E,MAAMC,gBAAgB,GAAG,CAACT,EAAE,IAAI3C,YAAY,CAAC2C,EAAE,CAAC,IAAIA,EAAE,EAAEP,YAAY,IAAIa,QAAQ,CAACC,eAAe,CAAC;EACjG,IAAIE,gBAAgB,EAAE;IACpB/B,IAAI,CAACgB,IAAI,CAACZ,KAAK,CAAEmB,SAAS,CAACS,GAAG,CAAC,2BAA2B,CAAC;EAC7D;EAEAf,cAAc,CAACgB,OAAO,CAAC,CAACX,EAAE,EAAEY,CAAC,KAAK;IAChCZ,EAAE,CAACa,KAAK,CAACC,WAAW,CAAC,mBAAmB,EAAE3D,aAAa,CAAC,CAAC6C,EAAE,CAACe,UAAU,CAAC,CAAC;IACxEf,EAAE,CAACa,KAAK,CAACC,WAAW,CAAC,mBAAmB,EAAE3D,aAAa,CAAC,CAAC6C,EAAE,CAACgB,SAAS,CAAC,CAAC;IAEvE,IAAIhB,EAAE,KAAKM,QAAQ,CAACC,eAAe,EAAE;MACnCP,EAAE,CAACa,KAAK,CAACC,WAAW,CAAC,sBAAsB,EAAE3D,aAAa,CAACgD,cAAc,CAAC,CAAC;IAC7E;IAEAH,EAAE,CAACC,SAAS,CAACS,GAAG,CAAC,0BAA0B,CAAC;EAC9C,CAAC,CAAC;EAEF1D,cAAc,CAAC,MAAM;IACnB2C,cAAc,CAACgB,OAAO,CAAC,CAACX,EAAE,EAAEY,CAAC,KAAK;MAChC,MAAMK,CAAC,GAAGC,UAAU,CAAClB,EAAE,CAACa,KAAK,CAACM,gBAAgB,CAAC,mBAAmB,CAAC,CAAC;MACpE,MAAMC,CAAC,GAAGF,UAAU,CAAClB,EAAE,CAACa,KAAK,CAACM,gBAAgB,CAAC,mBAAmB,CAAC,CAAC;MAEpE,MAAME,cAAc,GAAGrB,EAAE,CAACa,KAAK,CAACQ,cAAc;MAE9CrB,EAAE,CAACa,KAAK,CAACQ,cAAc,GAAG,MAAM;MAChCrB,EAAE,CAACa,KAAK,CAACS,cAAc,CAAC,mBAAmB,CAAC;MAC5CtB,EAAE,CAACa,KAAK,CAACS,cAAc,CAAC,mBAAmB,CAAC;MAC5CtB,EAAE,CAACa,KAAK,CAACS,cAAc,CAAC,sBAAsB,CAAC;MAC/CtB,EAAE,CAACC,SAAS,CAACsB,MAAM,CAAC,0BAA0B,CAAC;MAE/CvB,EAAE,CAACe,UAAU,GAAG,CAACE,CAAC;MAClBjB,EAAE,CAACgB,SAAS,GAAG,CAACI,CAAC;MAEjBpB,EAAE,CAACa,KAAK,CAACQ,cAAc,GAAGA,cAAc;IAC1C,CAAC,CAAC;IACF,IAAIZ,gBAAgB,EAAE;MACpB/B,IAAI,CAACgB,IAAI,CAACZ,KAAK,CAAEmB,SAAS,CAACsB,MAAM,CAAC,2BAA2B,CAAC;IAChE;EACF,CAAC,CAAC;AACJ;AAEA,SAASxD,wBAAwBA,CAAEW,IAAwB,EAAED,KAAoB,EAAEE,KAAkB,EAAE;EACrG,IAAI6C,IAAI,GAAG,KAAK;EAChB,IAAIC,GAAG,GAAG,CAAC,CAAC;EACZ,IAAIC,GAAG,GAAG,CAAC,CAAC;EAEZ,SAASC,MAAMA,CAAEtC,CAAQ,EAAE;IACzBnC,eAAe,CAAC,MAAM;MACpB,MAAM0E,KAAK,GAAGC,WAAW,CAACC,GAAG,CAAC,CAAC;MAC/BpD,IAAI,CAACqD,cAAc,CAACjD,KAAK,GAAGO,CAAC,CAAC;MAC9B,MAAM2C,IAAI,GAAGH,WAAW,CAACC,GAAG,CAAC,CAAC,GAAGF,KAAK;MACtCJ,IAAI,GAAGQ,IAAI,IAAI,IAAI,GAAG,EAAE,CAAC,GAAG,CAAC;IAC/B,CAAC,CAAC;EACJ;EAEAN,GAAG,GAAG,CAAC,OAAOO,mBAAmB,KAAK,WAAW,GAAIC,EAAY,IAAKA,EAAE,CAAC,CAAC,GAAGD,mBAAmB,EAAE,MAAM;IACtGtD,KAAK,CAACQ,GAAG,CAAC,MAAM;MACdG,UAAU,CAACZ,IAAI,CAACa,QAAQ,CAACT,KAAK,IAAIJ,IAAI,CAACc,SAAS,CAACV,KAAK,EAAEO,CAAC,IAAI;QAC3D,IAAImC,IAAI,EAAE;UACR;UACA;UACA;UACA;UACAW,oBAAoB,CAACV,GAAG,CAAC;UACzBA,GAAG,GAAGW,qBAAqB,CAAC,MAAM;YAChCX,GAAG,GAAGW,qBAAqB,CAAC,MAAM;cAChCT,MAAM,CAACtC,CAAC,CAAC;YACX,CAAC,CAAC;UACJ,CAAC,CAAC;QACJ,CAAC,MAAM;UACLsC,MAAM,CAACtC,CAAC,CAAC;QACX;MACF,CAAC,CAAC;IACJ,CAAC,CAAC;EACJ,CAAC,CAAC;EAEFrC,cAAc,CAAC,MAAM;IACnB,OAAOqF,kBAAkB,KAAK,WAAW,IAAIA,kBAAkB,CAACX,GAAG,CAAC;IACpES,oBAAoB,CAACV,GAAG,CAAC;EAC3B,CAAC,CAAC;AACJ;;AAEA;AACA,SAASnC,UAAUA,CAAEU,EAA2B,EAAEZ,QAA4B,EAAE;EAC9E,MAAMO,cAAc,GAAG,CAACW,QAAQ,EAAE,GAAGlD,gBAAgB,CAAC4C,EAAE,CAAC,CAAC;EAC1DL,cAAc,CAACgB,OAAO,CAACX,EAAE,IAAI;IAC3BA,EAAE,CAACsC,gBAAgB,CAAC,QAAQ,EAAElD,QAAQ,EAAE;MAAEmD,OAAO,EAAE;IAAK,CAAC,CAAC;EAC5D,CAAC,CAAC;EAEFvF,cAAc,CAAC,MAAM;IACnB2C,cAAc,CAACgB,OAAO,CAACX,EAAE,IAAI;MAC3BA,EAAE,CAACwC,mBAAmB,CAAC,QAAQ,EAAEpD,QAAQ,CAAC;IAC5C,CAAC,CAAC;EACJ,CAAC,CAAC;AACJ","ignoreList":[]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