|
1 |
| -import {getUIValue} from '.' |
2 |
| -import {prepareInterceptor} from './interceptor' |
3 |
| - |
| 1 | +const UIValue = Symbol('Displayed value in UI') |
4 | 2 | const UISelection = Symbol('Displayed selection in UI')
|
| 3 | +const InitialValue = Symbol('Initial value to compare on blur') |
5 | 4 |
|
6 |
| -interface Value extends Number { |
7 |
| - [UISelection]?: typeof UISelection |
8 |
| -} |
9 |
| - |
10 |
| -export interface UISelectionRange { |
11 |
| - startOffset: number |
12 |
| - endOffset: number |
| 5 | +declare global { |
| 6 | + interface Element { |
| 7 | + [UIValue]?: string |
| 8 | + [InitialValue]?: string |
| 9 | + [UISelection]?: UISelection |
| 10 | + } |
13 | 11 | }
|
14 | 12 |
|
15 |
| -export interface UISelection { |
| 13 | +interface UISelection { |
16 | 14 | anchorOffset: number
|
17 | 15 | focusOffset: number
|
18 | 16 | }
|
19 | 17 |
|
20 |
| -declare global { |
21 |
| - interface Element { |
22 |
| - [UISelection]?: UISelection |
| 18 | +export type UIValueString = String & {[UIValue]: true} |
| 19 | +export type UISelectionStart = Number & {[UISelection]: true} |
| 20 | + |
| 21 | +export function isUIValue( |
| 22 | + value: string | UIValueString, |
| 23 | +): value is UIValueString { |
| 24 | + return typeof value === 'object' && UIValue in value |
| 25 | +} |
| 26 | + |
| 27 | +export function isUISelectionStart( |
| 28 | + start: number | UISelectionStart | null, |
| 29 | +): start is UISelectionStart { |
| 30 | + return !!start && typeof start === 'object' && UISelection in start |
| 31 | +} |
| 32 | + |
| 33 | +export function setUIValue( |
| 34 | + element: HTMLInputElement | HTMLTextAreaElement, |
| 35 | + value: string, |
| 36 | +) { |
| 37 | + if (element[InitialValue] === undefined) { |
| 38 | + element[InitialValue] = element.value |
23 | 39 | }
|
| 40 | + |
| 41 | + element[UIValue] = value |
| 42 | + |
| 43 | + // eslint-disable-next-line no-new-wrappers |
| 44 | + element.value = Object.assign(new String(value), { |
| 45 | + [UIValue]: true, |
| 46 | + }) as unknown as string |
| 47 | +} |
| 48 | + |
| 49 | +export function getUIValue(element: HTMLInputElement | HTMLTextAreaElement) { |
| 50 | + return element[UIValue] === undefined |
| 51 | + ? element.value |
| 52 | + : String(element[UIValue]) |
| 53 | +} |
| 54 | + |
| 55 | +/** Flag the IDL value as clean. This does not change the value.*/ |
| 56 | +export function setUIValueClean( |
| 57 | + element: HTMLInputElement | HTMLTextAreaElement, |
| 58 | +) { |
| 59 | + element[UIValue] = undefined |
| 60 | +} |
| 61 | + |
| 62 | +export function clearInitialValue( |
| 63 | + element: HTMLInputElement | HTMLTextAreaElement, |
| 64 | +) { |
| 65 | + element[InitialValue] = undefined |
| 66 | +} |
| 67 | + |
| 68 | +export function getInitialValue( |
| 69 | + element: HTMLInputElement | HTMLTextAreaElement, |
| 70 | +) { |
| 71 | + return element[InitialValue] |
24 | 72 | }
|
25 | 73 |
|
26 |
| -export function prepareSelectionInterceptor( |
| 74 | +export function setUISelectionRaw( |
27 | 75 | element: HTMLInputElement | HTMLTextAreaElement,
|
| 76 | + selection: UISelection, |
28 | 77 | ) {
|
29 |
| - prepareInterceptor( |
30 |
| - element, |
31 |
| - 'setSelectionRange', |
32 |
| - function interceptorImpl( |
33 |
| - this: HTMLInputElement | HTMLTextAreaElement, |
34 |
| - start: number | Value | null, |
35 |
| - ...others |
36 |
| - ) { |
37 |
| - const isUI = start && typeof start === 'object' && start[UISelection] |
38 |
| - |
39 |
| - if (!isUI) { |
40 |
| - this[UISelection] = undefined |
41 |
| - } |
42 |
| - |
43 |
| - return { |
44 |
| - applyNative: !!isUI, |
45 |
| - realArgs: [Number(start), ...others] as [ |
46 |
| - number, |
47 |
| - number, |
48 |
| - 'forward' | 'backward' | 'none' | undefined, |
49 |
| - ], |
50 |
| - } |
51 |
| - }, |
52 |
| - ) |
53 |
| - |
54 |
| - prepareInterceptor( |
55 |
| - element, |
56 |
| - 'selectionStart', |
57 |
| - function interceptorImpl(this, v) { |
58 |
| - this[UISelection] = undefined |
59 |
| - |
60 |
| - return {realArgs: v} |
61 |
| - }, |
62 |
| - ) |
63 |
| - prepareInterceptor( |
64 |
| - element, |
65 |
| - 'selectionEnd', |
66 |
| - function interceptorImpl(this, v) { |
67 |
| - this[UISelection] = undefined |
68 |
| - |
69 |
| - return {realArgs: v} |
70 |
| - }, |
71 |
| - ) |
72 |
| - |
73 |
| - prepareInterceptor( |
74 |
| - element, |
75 |
| - 'select', |
76 |
| - function interceptorImpl(this: HTMLInputElement | HTMLTextAreaElement) { |
77 |
| - this[UISelection] = { |
78 |
| - anchorOffset: 0, |
79 |
| - focusOffset: getUIValue(element).length, |
80 |
| - } |
81 |
| - |
82 |
| - return {realArgs: [] as []} |
83 |
| - }, |
84 |
| - ) |
| 78 | + element[UISelection] = selection |
85 | 79 | }
|
86 | 80 |
|
87 | 81 | export function setUISelection(
|
@@ -120,20 +114,26 @@ export function setUISelection(
|
120 | 114 | }
|
121 | 115 |
|
122 | 116 | // eslint-disable-next-line no-new-wrappers
|
123 |
| - const startObj = new Number(startOffset) |
124 |
| - ;(startObj as Value)[UISelection] = UISelection |
| 117 | + const startObj = Object.assign(new Number(startOffset), { |
| 118 | + [UISelection]: true, |
| 119 | + }) as unknown as number |
125 | 120 |
|
126 | 121 | try {
|
127 |
| - element.setSelectionRange(startObj as number, endOffset) |
| 122 | + element.setSelectionRange(startObj, endOffset) |
128 | 123 | } catch {
|
129 | 124 | // DOMException for invalid state is expected when calling this
|
130 | 125 | // on an element without support for setSelectionRange
|
131 | 126 | }
|
132 | 127 | }
|
133 | 128 |
|
| 129 | +export type UISelectionRange = UISelection & { |
| 130 | + startOffset: number |
| 131 | + endOffset: number |
| 132 | +} |
| 133 | + |
134 | 134 | export function getUISelection(
|
135 | 135 | element: HTMLInputElement | HTMLTextAreaElement,
|
136 |
| -) { |
| 136 | +): UISelectionRange { |
137 | 137 | const sel = element[UISelection] ?? {
|
138 | 138 | anchorOffset: element.selectionStart ?? 0,
|
139 | 139 | focusOffset: element.selectionEnd ?? 0,
|
|
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