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refactor: types ARButton and VRButton #28

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refactor: types ARButton and VRButton #28

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c1885d3
refactor: types ARButton and VRButton
DylanTackoor Mar 6, 2021
0766abf
exports ARButtonSessionInit interface
DylanTackoor Mar 9, 2021
3b1517f
adds @ts-expect-error
DylanTackoor Mar 9, 2021
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50 changes: 32 additions & 18 deletions src/webxr/ARButton.js → src/webxr/ARButton.ts
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Original file line number Diff line number Diff line change
@@ -1,28 +1,37 @@
import { WebGLRenderer, XRSession, XRSessionInit } from 'three'

export interface ARButtonSessionInit extends XRSessionInit {
domOverlay?: {
root: HTMLDivElement
}
}

class ARButton {
static createButton(renderer, sessionInit = {}) {
static createButton(
renderer: WebGLRenderer,
sessionInit: ARButtonSessionInit = {},
): HTMLButtonElement | HTMLAnchorElement {
const button = document.createElement('button')

function showStartAR(/*device*/) {
if (sessionInit.domOverlay === undefined) {
var overlay = document.createElement('div')
const overlay = document.createElement('div')
overlay.style.display = 'none'
document.body.appendChild(overlay)

var svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg')
svg.setAttribute('width', 38)
svg.setAttribute('height', 38)
const svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg')
svg.setAttribute('width', '38')
svg.setAttribute('height', '38')
svg.style.position = 'absolute'
svg.style.right = '20px'
svg.style.top = '20px'
svg.addEventListener('click', function () {
currentSession.end()
})
svg.addEventListener('click', () => currentSession?.end())
overlay.appendChild(svg)

var path = document.createElementNS('http://www.w3.org/2000/svg', 'path')
const path = document.createElementNS('http://www.w3.org/2000/svg', 'path')
path.setAttribute('d', 'M 12,12 L 28,28 M 28,12 12,28')
path.setAttribute('stroke', '#fff')
path.setAttribute('stroke-width', 2)
path.setAttribute('stroke-width', '2')
svg.appendChild(path)

if (sessionInit.optionalFeatures === undefined) {
Expand All @@ -35,26 +44,26 @@ class ARButton {

//

let currentSession = null
let currentSession: XRSession | null

async function onSessionStarted(session) {
async function onSessionStarted(session: XRSession) {
session.addEventListener('end', onSessionEnded)

renderer.xr.setReferenceSpaceType('local')

await renderer.xr.setSession(session)

button.textContent = 'STOP AR'
sessionInit.domOverlay.root.style.display = ''
sessionInit.domOverlay!.root.style.display = ''

currentSession = session
}

function onSessionEnded(/*event*/) {
currentSession.removeEventListener('end', onSessionEnded)
currentSession?.removeEventListener('end', onSessionEnded)

button.textContent = 'START AR'
sessionInit.domOverlay.root.style.display = 'none'
sessionInit.domOverlay!.root.style.display = 'none'

currentSession = null
}
Expand All @@ -79,6 +88,9 @@ class ARButton {

button.onclick = function () {
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Do you think we could use addEventListener instead?

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yep, I'll convert it the morning 😃

if (currentSession === null) {
// @ts-expect-error waiting for TypeScript lib.dom.d.ts update
// https://developer.mozilla.org/en-US/docs/Web/API/Navigator/xr
// https://github.com/Microsoft/TypeScript/blob/master/lib/lib.dom.d.ts
navigator.xr.requestSession('immersive-ar', sessionInit).then(onSessionStarted)
} else {
currentSession.end()
Expand All @@ -101,11 +113,10 @@ class ARButton {

function showARNotSupported() {
disableButton()

button.textContent = 'AR NOT SUPPORTED'
}

function stylizeElement(element) {
function stylizeElement(element: HTMLElement) {
element.style.position = 'absolute'
element.style.bottom = '20px'
element.style.padding = '12px 6px'
Expand All @@ -126,9 +137,12 @@ class ARButton {

stylizeElement(button)

// @ts-expect-error waiting for TypeScript lib.dom.d.ts update
// https://developer.mozilla.org/en-US/docs/Web/API/Navigator/xr
// https://github.com/Microsoft/TypeScript/blob/master/lib/lib.dom.d.ts
navigator.xr
.isSessionSupported('immersive-ar')
.then(function (supported) {
.then((supported: boolean) => {
supported ? showStartAR() : showARNotSupported()
})
.catch(showARNotSupported)
Expand Down
49 changes: 19 additions & 30 deletions src/webxr/VRButton.js → src/webxr/VRButton.ts
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Open in desktop
Original file line number Diff line number Diff line change
@@ -1,30 +1,22 @@
class VRButton {
static createButton(renderer, options) {
if (options) {
console.error(
'THREE.VRButton: The "options" parameter has been removed. Please set the reference space type via renderer.xr.setReferenceSpaceType() instead.',
)
}
import { WebGLRenderer, XRSession } from 'three'

class VRButton {
static createButton(renderer: WebGLRenderer): HTMLButtonElement | HTMLAnchorElement {
const button = document.createElement('button')

function showEnterVR(/*device*/) {
let currentSession = null
let currentSession: XRSession | null

async function onSessionStarted(session) {
async function onSessionStarted(session: XRSession) {
session.addEventListener('end', onSessionEnded)

await renderer.xr.setSession(session)
button.textContent = 'EXIT VR'

currentSession = session
}

function onSessionEnded(/*event*/) {
currentSession.removeEventListener('end', onSessionEnded)

currentSession?.removeEventListener('end', onSessionEnded)
button.textContent = 'ENTER VR'

currentSession = null
}

Expand All @@ -38,16 +30,13 @@ class VRButton {

button.textContent = 'ENTER VR'

button.onmouseenter = function () {
button.style.opacity = '1.0'
}

button.onmouseleave = function () {
button.style.opacity = '0.5'
}
button.onmouseenter = () => (button.style.opacity = '1.0')
joshuaellis marked this conversation as resolved.
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button.onmouseleave = () => (button.style.opacity = '0.5')

button.onclick = function () {
if (currentSession === null) {
button.onclick = () => {
if (currentSession) {
currentSession.end()
} else {
// WebXR's requestReferenceSpace only works if the corresponding feature
// was requested at session creation time. For simplicity, just ask for
// the interesting ones as optional features, but be aware that the
Expand All @@ -58,14 +47,14 @@ class VRButton {
const sessionInit = {
optionalFeatures: ['local-floor', 'bounded-floor', 'hand-tracking'],
}
navigator.xr.requestSession('immersive-vr', sessionInit).then(onSessionStarted)
} else {
currentSession.end()

const xr: THREE.XR = (navigator as any).xr
xr.requestSession('immersive-vr', sessionInit).then(onSessionStarted)
}
}
}

function disableButton() {
function disableButton(): void {
button.style.display = ''

button.style.cursor = 'auto'
Expand All @@ -80,11 +69,10 @@ class VRButton {

function showWebXRNotFound() {
disableButton()

button.textContent = 'VR NOT SUPPORTED'
}

function stylizeElement(element) {
function stylizeElement(element: HTMLElement): void {
element.style.position = 'absolute'
element.style.bottom = '20px'
element.style.padding = '12px 6px'
Expand All @@ -105,7 +93,8 @@ class VRButton {

stylizeElement(button)

navigator.xr.isSessionSupported('immersive-vr').then(function (supported) {
const xr: THREE.XR = (navigator as any).xr
xr.isSessionSupported('immersive-vr').then((supported) => {
supported ? showEnterVR() : showWebXRNotFound()
})

Expand Down