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Fix long-press to open contextmenu on touch devices (#3624)

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This commit is contained in:
Yiximail
2025-04-25 23:30:13 +08:00
committed by GitHub
parent 4e12800336
commit 44348180f5
1 changed files with 22 additions and 8 deletions
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30
src/extensions/core/simpleTouchSupport.ts
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@@ -61,13 +61,19 @@ app.registerExtension({
if (touchTime && !e.touches?.length) {
if (new Date().getTime() - touchTime.getTime() > 600) {
if (e.target === app.canvasEl) {
app.canvasEl.dispatchEvent(
new PointerEvent('pointerdown', {
button: 2,
clientX: e.changedTouches[0].clientX,
clientY: e.changedTouches[0].clientY
})
)
const touch = {
button: 2, // Right click
clientX: e.changedTouches[0].clientX,
clientY: e.changedTouches[0].clientY,
pointerId: 1, // changedTouches' id is 0, set it to any number
isPrimary: true // changedTouches' isPrimary is false, so set it to true
}
// context menu info set in 'pointerdown' event
app.canvasEl.dispatchEvent(new PointerEvent('pointerdown', touch))
// then, context menu open after 'pointerup' event
setTimeout(() => {
app.canvasEl.dispatchEvent(new PointerEvent('pointerup', touch))
})
e.preventDefault()
}
}
@@ -79,7 +85,15 @@ app.registerExtension({
app.canvasEl.parentElement?.addEventListener(
'touchmove',
(e) => {
touchTime = null
// make a threshold for touchmove to prevent clear touchTime for long press
if (touchTime && lastTouch && e.touches?.length === 1) {
const onlyTouch = e.touches[0]
const deltaX = onlyTouch.clientX - lastTouch.clientX
const deltaY = onlyTouch.clientY - lastTouch.clientY
if (deltaX * deltaX + deltaY * deltaY > 30) {
touchTime = null
}
}
if (e.touches?.length === 2 && lastTouch && !e.ctrlKey && !e.shiftKey) {
e.preventDefault() // Prevent browser from zooming when two textareas are touched
app.canvas.pointer.isDown = false