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| 1 | +import { beforeEach, describe, expect, it, vi } from 'vitest' |
| 2 | +import { defineComponent, h } from 'vue-demi' |
| 3 | +import { mount } from '../../.test' |
| 4 | +import { useScrollLock } from '.' |
| 5 | + |
| 6 | +describe('useScrollLock', () => { |
| 7 | + let targetEl: HTMLElement |
| 8 | + |
| 9 | + beforeEach(() => { |
| 10 | + targetEl = document.createElement('div') |
| 11 | + }) |
| 12 | + |
| 13 | + it('should lock the scroll', () => { |
| 14 | + const isLock = useScrollLock(targetEl) |
| 15 | + |
| 16 | + isLock.value = true |
| 17 | + expect(targetEl.style.overflow).toBe('hidden') |
| 18 | + |
| 19 | + isLock.value = false |
| 20 | + expect(targetEl.style.overflow).toBe('') |
| 21 | + }) |
| 22 | + |
| 23 | + it('should cache the initial overflow setting', () => { |
| 24 | + targetEl.style.overflow = 'auto' |
| 25 | + |
| 26 | + const isLock = useScrollLock(targetEl) |
| 27 | + |
| 28 | + isLock.value = true |
| 29 | + expect(targetEl.style.overflow).toBe('hidden') |
| 30 | + |
| 31 | + isLock.value = false |
| 32 | + expect(targetEl.style.overflow).toBe('auto') |
| 33 | + }) |
| 34 | + |
| 35 | + it('automatically unlocks on component unmount', async () => { |
| 36 | + const vm = mount(defineComponent({ |
| 37 | + setup() { |
| 38 | + const isLock = useScrollLock(targetEl) |
| 39 | + |
| 40 | + return { isLock } |
| 41 | + }, |
| 42 | + render() { |
| 43 | + return h('div') |
| 44 | + }, |
| 45 | + })) |
| 46 | + |
| 47 | + vm.isLock = true |
| 48 | + expect(targetEl.style.overflow).toBe('hidden') |
| 49 | + |
| 50 | + vm.unmount() |
| 51 | + expect(targetEl.style.overflow).toBe('') |
| 52 | + }) |
| 53 | + |
| 54 | + it('handles touchmove event on IOS devices', () => { |
| 55 | + vi.mock('@vueuse/shared', async () => { |
| 56 | + const actual = await vi.importActual('@vueuse/shared') |
| 57 | + return { |
| 58 | + ...actual, |
| 59 | + isIOS: true, |
| 60 | + } |
| 61 | + }) |
| 62 | + |
| 63 | + const addEventListener = vi.spyOn(targetEl, 'addEventListener') |
| 64 | + const removeEventListener = vi.spyOn(targetEl, 'removeEventListener') |
| 65 | + const isLock = useScrollLock(targetEl) |
| 66 | + |
| 67 | + expect(addEventListener).toBeCalledTimes(0) |
| 68 | + |
| 69 | + isLock.value = true |
| 70 | + expect(addEventListener).toBeCalledTimes(1) |
| 71 | + expect(removeEventListener).toBeCalledTimes(0) |
| 72 | + |
| 73 | + isLock.value = false |
| 74 | + expect(removeEventListener).toBeCalledTimes(1) |
| 75 | + }) |
| 76 | + |
| 77 | + it('multiple instances point at the same element, will share the same initialOverflow', () => { |
| 78 | + const isLock1 = useScrollLock(targetEl) |
| 79 | + const isLock2 = useScrollLock(targetEl) |
| 80 | + |
| 81 | + isLock1.value = true |
| 82 | + isLock2.value = true |
| 83 | + expect(targetEl.style.overflow).toBe('hidden') |
| 84 | + |
| 85 | + isLock2.value = false |
| 86 | + expect(targetEl.style.overflow).toBe('') |
| 87 | + }) |
| 88 | +}) |
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