Dhruv Srivastava | 5e4ab10 | 2022-10-07 14:04:27 +0200 | [diff] [blame] | 1 | /** |
| 2 | * @license |
| 3 | * Copyright 2022 Google LLC |
| 4 | * SPDX-License-Identifier: Apache-2.0 |
| 5 | */ |
| 6 | |
| 7 | import '../../test/common-test-setup'; |
| 8 | import {fixture, html, assert} from '@open-wc/testing'; |
| 9 | import {FitController} from './fit-controller'; |
| 10 | import {LitElement} from 'lit'; |
| 11 | import {customElement} from 'lit/decorators.js'; |
| 12 | |
| 13 | @customElement('fit-element') |
| 14 | class FitElement extends LitElement { |
| 15 | fitController = new FitController(this); |
| 16 | |
| 17 | horizontalOffset = 0; |
| 18 | |
| 19 | verticalOffset = 0; |
| 20 | |
| 21 | override render() { |
| 22 | return html`<div></div>`; |
| 23 | } |
| 24 | } |
| 25 | |
| 26 | suite('fit controller', () => { |
| 27 | let element: FitElement; |
| 28 | setup(async () => { |
| 29 | element = await fixture(html`<fit-element></fit-element>`); |
| 30 | }); |
| 31 | |
| 32 | test('refit positioning', async () => { |
| 33 | const hostRect = new DOMRect(0, 0, 50, 50); |
| 34 | |
| 35 | const positionRect = new DOMRect(37, 37, 300, 60); |
| 36 | |
| 37 | const windowRect = new DOMRect(0, 0, 600, 600); |
| 38 | |
| 39 | element.fitController.calculateAndSetPositions( |
| 40 | hostRect, |
| 41 | positionRect, |
| 42 | windowRect |
| 43 | ); |
| 44 | |
| 45 | assert.equal(element.style.top, '37px'); |
| 46 | assert.equal(element.style.left, '37px'); |
| 47 | }); |
| 48 | |
| 49 | test('refit positioning with offset', async () => { |
| 50 | const elementWithOffset: FitElement = await fixture( |
| 51 | html`<fit-element></fit-element>` |
| 52 | ); |
| 53 | elementWithOffset.verticalOffset = 10; |
| 54 | elementWithOffset.horizontalOffset = 20; |
| 55 | |
| 56 | const hostRect = new DOMRect(0, 0, 50, 50); |
| 57 | |
| 58 | const positionRect = new DOMRect(37, 37, 300, 60); |
| 59 | |
| 60 | const windowRect = new DOMRect(0, 0, 600, 600); |
| 61 | |
| 62 | elementWithOffset.fitController.calculateAndSetPositions( |
| 63 | hostRect, |
| 64 | positionRect, |
| 65 | windowRect |
| 66 | ); |
| 67 | |
| 68 | assert.equal(elementWithOffset.style.top, '47px'); |
| 69 | assert.equal(elementWithOffset.style.left, '57px'); |
| 70 | }); |
| 71 | |
| 72 | test('host margin updates positioning', async () => { |
| 73 | const hostRect = new DOMRect(0, 0, 50, 50); |
| 74 | |
| 75 | const positionRect = new DOMRect(37, 37, 300, 60); |
| 76 | |
| 77 | const windowRect = new DOMRect(0, 0, 600, 600); |
| 78 | |
| 79 | element.style.marginLeft = '10px'; |
| 80 | element.style.marginTop = '10px'; |
| 81 | element.fitController.calculateAndSetPositions( |
| 82 | hostRect, |
| 83 | positionRect, |
| 84 | windowRect |
| 85 | ); |
| 86 | |
| 87 | // is 10px extra from the previous test due to host margin |
| 88 | assert.equal(element.style.top, '47px'); |
| 89 | assert.equal(element.style.left, '47px'); |
| 90 | }); |
| 91 | |
| 92 | test('host minWidth, minHeight overrides positioning', async () => { |
| 93 | const hostRect = new DOMRect(0, 0, 50, 50); |
| 94 | |
| 95 | const positionRect = new DOMRect(37, 37, 300, 60); |
| 96 | |
| 97 | const windowRect = new DOMRect(0, 0, 600, 600); |
| 98 | |
| 99 | element.style.marginLeft = '10px'; |
| 100 | element.style.marginTop = '10px'; |
| 101 | |
| 102 | element.style.minHeight = '50px'; |
| 103 | element.style.minWidth = '60px'; |
| 104 | |
| 105 | element.fitController.calculateAndSetPositions( |
| 106 | hostRect, |
| 107 | positionRect, |
| 108 | windowRect |
| 109 | ); |
| 110 | |
| 111 | assert.equal(element.style.top, '47px'); |
| 112 | |
| 113 | // Should be 47 like the previous test but that would make it overall |
| 114 | // smaller in width than the minWidth defined |
| 115 | assert.equal(element.style.left, '37px'); |
| 116 | assert.equal(element.style.maxWidth, '60px'); |
| 117 | }); |
| 118 | |
| 119 | test('positioning happens within window size ', async () => { |
| 120 | const hostRect = new DOMRect(0, 0, 50, 50); |
| 121 | |
| 122 | const positionRect = new DOMRect(37, 37, 300, 60); |
| 123 | |
| 124 | // window size is small hence limits the position |
| 125 | const windowRect = new DOMRect(0, 0, 50, 50); |
| 126 | |
| 127 | element.style.marginLeft = '10px'; |
| 128 | element.style.marginTop = '10px'; |
| 129 | |
| 130 | element.fitController.calculateAndSetPositions( |
| 131 | hostRect, |
| 132 | positionRect, |
| 133 | windowRect |
| 134 | ); |
| 135 | |
| 136 | assert.equal(element.style.top, '47px'); |
| 137 | assert.equal(element.style.left, '47px'); |
| 138 | // With the window size being 50, the element is styled with width 3px |
| 139 | // width = windowSize - leftPosition = 50 - 47 = 3px |
| 140 | // Without the window width restriction, in previous test maxWidth is 60px |
| 141 | assert.equal(element.style.maxWidth, '3px'); |
| 142 | }); |
| 143 | }); |