Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 | 4x 4x 60x 60x 60x 60x 48x 48x 48x 48x 48x 30x 30x 18x 12x 12x 12x 6x 6x 177x 177x 165x 543x 543x 177x 354x 354x 878x 878x 12x 878x 878x 450x 543x 9x 543x 543x 180x 73x 31x 73x 71x 71x 71x 71x 71x 48x 48x 23x 20x 20x 119x 119x 630x 119x 119x 119x 119x 119x 119x 119x 1214x 1214x 233x 202x 31x 198x 67x 67x 5x 62x 67x 6x 6x 6x 3x 3x 6x 39x 39x 1511x 39x 1406x 42x 42x 60x 60x 58x 58x 58x 58x 60x 60x 4x 167x 167x 167x | import { log } from "../api/client"
import { SearchAutocompleteOptions } from "../autocomplete"
type OnClickBindings<State> = {
[key: string]: (obj: {
data: string | undefined
el: HTMLElement
update: (state: State) => void
}) => unknown
}
export function createDropdown<State>(
container: HTMLElement,
initialState: PromiseLike<State>,
render: (container: HTMLElement, state: State) => void | PromiseLike<void>,
submit: (
inputValue: string,
options?: SearchAutocompleteOptions
) => unknown,
updateInput: (inputValue: string) => void,
onClickBindings?: OnClickBindings<State>
) {
let elements: HTMLElement[] = []
let unbindCallbacks: Array<() => void> = []
let isEmpty: boolean = true
let selectedIndex: number = -1
function handleElementSubmit(el: HTMLElement): void {
const hit = el?.dataset?.nsHit
if (hit) {
const parsedHit = parseHit(hit)
hide()
if (parsedHit?.item) {
submit(parsedHit.item)
return
}
if (parsedHit?.keyword) {
submit(parsedHit.keyword, { redirect: !!parsedHit?._redirect, isKeyword: true })
Iif (parsedHit?._redirect) {
location.href = parsedHit._redirect
}
return
}
if (parsedHit?.url) {
location.href = parsedHit.url
}
}
}
function loadElements() {
isEmpty = !container.innerHTML.trim()
if (!isEmpty) {
elements = Array.from<HTMLElement>(
container.querySelectorAll("[data-ns-hit]")
).map(el => {
bindElementSubmit(el)
return el
})
}
}
function bindDataCallbacks() {
Object.entries(onClickBindings ?? {}).map(([key, callback]) => {
// Convert camelCase to kebab-case
const dataKey = `[data-ns-${key
.replace(/([A-Z])/g, "-$1")
.toLowerCase()}]`
Array.from<HTMLElement>(container.querySelectorAll(dataKey)).map(
el => {
const data =
el?.dataset?.[
`ns${key.charAt(0).toUpperCase() + key.slice(1)}`
]
const onClick = () => {
callback({
data,
el,
update,
})
}
el.addEventListener("click", onClick)
unbindCallbacks.push(() => {
el.removeEventListener("click", onClick)
})
}
)
})
}
function bindElementSubmit(el: HTMLElement) {
const onSubmit = () => {
handleElementSubmit(el)
}
el.addEventListener("click", onSubmit)
unbindCallbacks.push(() => {
el.removeEventListener("click", onSubmit)
})
}
function highlight(index: number, prevIndex?: number) {
if (typeof prevIndex === "number" && elements[prevIndex]) {
elements[prevIndex].classList.remove("selected")
}
if (typeof index === "number" && elements[index]) {
elements[index]?.classList.add("selected")
const hit = elements[index]?.dataset?.nsHit
if (hit) {
const parsedHit = parseHit(hit)
if (parsedHit.item) {
updateInput(parsedHit.item)
return
}
if (parsedHit.keyword) {
updateInput(parsedHit.keyword)
return
}
}
}
}
function dispose() {
resetHighlight()
elements = []
unbindCallbacks.forEach(v => v())
unbindCallbacks = []
}
async function update(state: State) {
dispose()
await Promise.resolve(render(container, state))
// Without setTimeout React does not have committed DOM changes yet, so we don't have the correct elements.
setTimeout(() => {
loadElements()
bindDataCallbacks()
show()
}, 0)
}
function hide() {
resetHighlight()
container.style.display = "none"
}
function show() {
if (!isEmpty) {
container.style.display = ""
} else {
hide()
}
}
function clear() {
dispose()
isEmpty = true
hide()
}
function isOpen() {
return container.style.display !== "none"
}
function goDown() {
let prevIndex = selectedIndex
if (selectedIndex === elements.length - 1) {
selectedIndex = 0
} else {
prevIndex = selectedIndex++
}
highlight(selectedIndex, prevIndex)
}
function goUp() {
if (hasHighlight()) {
let prevIndex = selectedIndex
if (selectedIndex === 0) {
selectedIndex = elements.length - 1
} else {
prevIndex = selectedIndex--
}
highlight(selectedIndex, prevIndex)
} else E{
selectedIndex = elements.length - 1
highlight(selectedIndex)
}
}
function handleSubmit() {
if (isOpen() && hasHighlight() && elements[selectedIndex]) {
handleElementSubmit(elements[selectedIndex])
}
}
function hasHighlight() {
return selectedIndex > -1
}
function getHighlight() {
return elements[selectedIndex]
}
function resetHighlight() {
if (hasHighlight()) {
elements[selectedIndex]?.classList.remove("selected")
selectedIndex = -1
}
}
function destroy() {
dispose()
isEmpty = true
container.innerHTML = ""
}
async function init() {
const state = await Promise.resolve(initialState)
await Promise.resolve(render(container, state))
// Without setTimeout React does not have committed DOM changes yet, so we don't have the correct elements.
setTimeout(() => {
loadElements()
bindDataCallbacks()
hide()
}, 0)
}
init()
return {
update,
clear,
isOpen,
goDown,
goUp,
handleSubmit,
destroy,
show,
hide,
resetHighlight,
hasHighlight,
getHighlight,
container,
}
}
export type Dropdown<T> = ReturnType<typeof createDropdown<T>>
interface Hit {
item?: string
keyword?: string
url?: string
_redirect?: string
}
export function parseHit(hit: string): Hit {
try {
const parsedHit: Hit | undefined | null = JSON.parse(hit)
return parsedHit ?? {}
} catch (error) {
log("Could not parse hit", error, "warn")
return {}
}
}
|