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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| import { OverlayScrollbars } from 'overlayscrollbars'; | ||
| import { eventObserver } from './events'; | ||
|
|
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| let osInstance: OverlayScrollbars | undefined; | ||
| let contentHidden = false; | ||
| let elementHidden = false; | ||
| let useOverlayScrollbars = true; | ||
| const activateEvent = eventObserver(); | ||
|
|
||
| const target = document.querySelector('#target') as HTMLElement; | ||
| const targetContent = document.querySelector('#targetContent') as HTMLElement; | ||
| const impostor = document.querySelector('#impostor') as HTMLElement; | ||
| const scrollButton = document.querySelector('#scrollButton') as HTMLButtonElement; | ||
| const toggleContentButton = document.querySelector('#toggleContentButton') as HTMLButtonElement; | ||
| const toggleElementButton = document.querySelector('#toggleElementButton') as HTMLButtonElement; | ||
| const toggleOverlayScrollbarsButton = document.querySelector( | ||
| '#toggleOverlayScrollbarsButton' | ||
| ) as HTMLButtonElement; | ||
|
|
||
| const updateToggleContent = () => { | ||
| if (contentHidden) { | ||
| targetContent.style.display = 'none'; | ||
| toggleContentButton.textContent = 'Show Content'; | ||
| } else { | ||
| targetContent.style.display = ''; | ||
| toggleContentButton.textContent = 'Hide Content'; | ||
| } | ||
| }; | ||
| const updateToggleElement = () => { | ||
| if (elementHidden) { | ||
| target.style.display = 'none'; | ||
| toggleElementButton.textContent = 'Show Element'; | ||
| } else { | ||
| target.style.display = ''; | ||
| toggleElementButton.textContent = 'Hide Element'; | ||
| } | ||
| }; | ||
| const updateUseOverlayScrollbars = () => { | ||
| if (useOverlayScrollbars) { | ||
| impostor.parentElement?.append(target); | ||
| impostor.remove(); | ||
|
|
||
| scrollButton.style.display = ''; | ||
| toggleContentButton.style.display = ''; | ||
| toggleElementButton.style.display = ''; | ||
| toggleOverlayScrollbarsButton.textContent = 'Destroy OverlayScrollbars'; | ||
|
|
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| osInstance = OverlayScrollbars( | ||
| target, | ||
| {}, | ||
| { | ||
| initialized: () => activateEvent('initialized'), | ||
| destroyed: () => activateEvent('destroyed'), | ||
| updated: () => activateEvent('updated'), | ||
| scroll: () => activateEvent('scroll'), | ||
| } | ||
| ); | ||
| } else { | ||
| osInstance?.destroy(); | ||
|
|
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| target.parentElement?.append(impostor); | ||
| target.remove(); | ||
|
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| impostor.style.display = ''; | ||
| scrollButton.style.display = 'none'; | ||
| toggleContentButton.style.display = 'none'; | ||
| toggleElementButton.style.display = 'none'; | ||
| toggleOverlayScrollbarsButton.textContent = 'Initialize OverlayScrollbars'; | ||
| } | ||
| }; | ||
|
|
||
| scrollButton.addEventListener('click', () => { | ||
| if (!osInstance) { | ||
| return; | ||
| } | ||
|
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| const { overflowAmount } = osInstance.state(); | ||
| const { scrollOffsetElement } = osInstance.elements(); | ||
| const { scrollLeft, scrollTop } = scrollOffsetElement; | ||
|
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| scrollOffsetElement.scrollTo({ | ||
| behavior: 'smooth', | ||
| left: Math.round((overflowAmount.x - scrollLeft) / overflowAmount.x) * overflowAmount.x, | ||
| top: Math.round((overflowAmount.y - scrollTop) / overflowAmount.y) * overflowAmount.y, | ||
| }); | ||
| }); | ||
| toggleContentButton.addEventListener('click', () => { | ||
| contentHidden = !contentHidden; | ||
| updateToggleContent(); | ||
| }); | ||
| toggleElementButton.addEventListener('click', () => { | ||
| elementHidden = !elementHidden; | ||
| updateToggleElement(); | ||
| }); | ||
| toggleOverlayScrollbarsButton.addEventListener('click', () => { | ||
| useOverlayScrollbars = !useOverlayScrollbars; | ||
| updateUseOverlayScrollbars(); | ||
| }); | ||
|
|
||
| updateToggleContent(); | ||
| updateToggleElement(); | ||
| updateUseOverlayScrollbars(); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| import { OverlayScrollbars } from 'overlayscrollbars'; | ||
|
|
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| let useBodyOverlayScrollbars: boolean | null = null; | ||
|
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| const initBodyOverlayScrollbars = (force?: boolean) => | ||
| OverlayScrollbars( | ||
| { | ||
| target: document.body, | ||
| cancel: { | ||
| body: force ? false : null, | ||
| }, | ||
| }, | ||
| {} | ||
| ).state().destroyed; | ||
|
|
||
| const toggleBodyOverlayScrollbarsSection = document.querySelector( | ||
| '#toggleBodyOverlayScrollbarsSection' | ||
| ) as HTMLElement; | ||
| const toggleBodyOverlayScrollbarsButton = document.querySelector( | ||
| '#toggleBodyOverlayScrollbarsButton' | ||
| ) as HTMLButtonElement; | ||
|
|
||
| const updateToggleBodyOverlayScrollbarsSection = () => { | ||
| if (useBodyOverlayScrollbars !== null) { | ||
| toggleBodyOverlayScrollbarsSection.style.display = ''; | ||
| } | ||
| toggleBodyOverlayScrollbarsButton.style.display = ''; | ||
| toggleBodyOverlayScrollbarsButton.textContent = `${ | ||
| useBodyOverlayScrollbars ? 'Destroy' : 'Initialize' | ||
| } Body OverlayScrollbars`; | ||
| }; | ||
|
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| toggleBodyOverlayScrollbarsButton.addEventListener('click', () => { | ||
| const bodyOsInstance = OverlayScrollbars(document.body); | ||
| if (bodyOsInstance) { | ||
| bodyOsInstance.destroy(); | ||
| } else { | ||
| initBodyOverlayScrollbars(true); | ||
| } | ||
|
|
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| useBodyOverlayScrollbars = !useBodyOverlayScrollbars; | ||
| updateToggleBodyOverlayScrollbarsSection(); | ||
| }); | ||
|
|
||
| useBodyOverlayScrollbars = !initBodyOverlayScrollbars(); | ||
| updateToggleBodyOverlayScrollbarsSection(); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| import type { EventListenerArgs } from 'overlayscrollbars'; | ||
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| type OverlayScrollbarsEvents = keyof EventListenerArgs; | ||
|
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| interface EventObserverEvent { | ||
| active: boolean; | ||
| count: number; | ||
| } | ||
|
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| const eventsSection = document.querySelector('#eventsSection') as HTMLElement; | ||
| const events = document.querySelector('#events') as HTMLElement; | ||
|
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| const onEventsChanged = (changedEvents: Record<OverlayScrollbarsEvents, EventObserverEvent>) => { | ||
| eventsSection.style.display = ''; | ||
| events.innerHTML = ''; | ||
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| Object.entries(changedEvents).forEach(([eventName, event]) => { | ||
| const eventElement = document.createElement('div'); | ||
| eventElement.className = `event ${event.active ? 'active' : ''}`; | ||
| eventElement.textContent = `${eventName} (${event.count})`; | ||
|
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| events.append(eventElement); | ||
| }); | ||
| }; | ||
|
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| export const eventObserver = () => { | ||
| let activeEvents: OverlayScrollbarsEvents[] = []; | ||
| const eventCount: Partial<Record<OverlayScrollbarsEvents, number>> = {}; | ||
| const timeoutIds: Partial<Record<OverlayScrollbarsEvents, ReturnType<typeof setTimeout>>> = {}; | ||
|
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| const getEventObj = (event: OverlayScrollbarsEvents): EventObserverEvent => ({ | ||
| active: activeEvents.includes(event), | ||
| count: eventCount[event] || 0, | ||
| }); | ||
|
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| const updateActiveEvents = (newActiveEvents: OverlayScrollbarsEvents[]) => { | ||
| activeEvents = newActiveEvents; | ||
| onEventsChanged({ | ||
| initialized: getEventObj('initialized'), | ||
| destroyed: getEventObj('destroyed'), | ||
| updated: getEventObj('updated'), | ||
| scroll: getEventObj('scroll'), | ||
| }); | ||
| }; | ||
|
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| const activateEvent = (event: OverlayScrollbarsEvents) => { | ||
| const currAmount = eventCount[event]; | ||
| eventCount[event] = typeof currAmount === 'number' ? currAmount + 1 : 1; | ||
|
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| updateActiveEvents(Array.from(new Set([...activeEvents, event]))); | ||
|
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| clearTimeout(timeoutIds[event]); | ||
| timeoutIds[event] = setTimeout(() => { | ||
| const currActiveEventsSet = new Set(activeEvents); | ||
| currActiveEventsSet.delete(event); | ||
| updateActiveEvents(Array.from(currActiveEventsSet)); | ||
| }, 500); | ||
| }; | ||
|
|
||
| return activateEvent; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,3 @@ | ||
| import 'overlayscrollbars/overlayscrollbars.css'; | ||
| import { OverlayScrollbars } from 'overlayscrollbars'; | ||
|
|
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| OverlayScrollbars(document.querySelector('.overlayscrollbars'), {}); | ||
| import './actions'; | ||
| import './bodyOverlayScrollbars'; |
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