feat(search): add arrow key navigation (#442)

* feat(search): add arrow navigation

* chore: format

* refactor: simplify arrow navigation

* chore: remove comment

* feat: rework arrow navigation to work without state

* feat: make pressing enter work with arrow navigation

* fix: remove unused css class

* chore: correct comment

* refactor(search): use optional chaining
This commit is contained in:
Ben Schlegel 2023-09-03 18:32:46 +02:00 committed by GitHub
parent 8c354f6261
commit 7e42be8e46
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@ -82,6 +82,7 @@ document.addEventListener("nav", async (e: unknown) => {
const searchIcon = document.getElementById("search-icon") const searchIcon = document.getElementById("search-icon")
const searchBar = document.getElementById("search-bar") as HTMLInputElement | null const searchBar = document.getElementById("search-bar") as HTMLInputElement | null
const results = document.getElementById("results-container") const results = document.getElementById("results-container")
const resultCards = document.getElementsByClassName("result-card")
const idDataMap = Object.keys(data) as FullSlug[] const idDataMap = Object.keys(data) as FullSlug[]
function hideSearch() { function hideSearch() {
@ -122,9 +123,31 @@ document.addEventListener("nav", async (e: unknown) => {
// add "#" prefix for tag search // add "#" prefix for tag search
if (searchBar) searchBar.value = "#" if (searchBar) searchBar.value = "#"
} else if (e.key === "Enter") { } else if (e.key === "Enter") {
const anchor = document.getElementsByClassName("result-card")[0] as HTMLInputElement | null // If result has focus, navigate to that one, otherwise pick first result
if (anchor) { if (results?.contains(document.activeElement)) {
anchor.click() const active = document.activeElement as HTMLInputElement
active.click()
} else {
const anchor = document.getElementsByClassName("result-card")[0] as HTMLInputElement | null
anchor?.click()
}
} else if (e.key === "ArrowDown") {
e.preventDefault()
// When first pressing ArrowDown, results wont contain the active element, so focus first element
if (!results?.contains(document.activeElement)) {
const firstResult = resultCards[0] as HTMLInputElement | null
firstResult?.focus()
} else {
// If an element in results-container already has focus, focus next one
const nextResult = document.activeElement?.nextElementSibling as HTMLInputElement | null
nextResult?.focus()
}
} else if (e.key === "ArrowUp") {
e.preventDefault()
if (results?.contains(document.activeElement)) {
// If an element in results-container already has focus, focus previous one
const prevResult = document.activeElement?.previousElementSibling as HTMLInputElement | null
prevResult?.focus()
} }
} }
} }