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Add workaround for Firefox bug not detecting pen input type correctly (#821)

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toasted-nutbread 2020-09-13 11:58:07 -04:00 committed by GitHub
parent 5b49cf4398
commit a12c4a1dd7
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 20 additions and 5 deletions
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25
ext/mixed/js/text-scanner.js
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@ -62,6 +62,7 @@ class TextScanner extends EventDispatcher {
this._preventScroll = false;
this._penPointerPressed = false;
this._penPointerReleased = false;
this._pointerIdTypeMap = new Map();
this._canClearSelection = true;
}
@ -101,6 +102,7 @@ class TextScanner extends EventDispatcher {
this._preventScroll = false;
this._penPointerPressed = false;
this._penPointerReleased = false;
this._pointerIdTypeMap.clear();
this._enabledValue = value;
@ -389,8 +391,13 @@ class TextScanner extends EventDispatcher {
}
_onPointerOver(e) {
if (!e.isPrimary) { return; }
switch (e.pointerType) {
const {pointerType, pointerId, isPrimary} = e;
if (pointerType === 'pen') {
this._pointerIdTypeMap.set(pointerId, pointerType);
}
if (!isPrimary) { return; }
switch (pointerType) {
case 'mouse': return this._onMousePointerOver(e);
case 'touch': return this._onTouchPointerOver(e);
case 'pen': return this._onPenPointerOver(e);
@ -399,7 +406,7 @@ class TextScanner extends EventDispatcher {
_onPointerDown(e) {
if (!e.isPrimary) { return; }
switch (e.pointerType) {
switch (this._getPointerEventType(e)) {
case 'mouse': return this._onMousePointerDown(e);
case 'touch': return this._onTouchPointerDown(e);
case 'pen': return this._onPenPointerDown(e);
@ -408,7 +415,7 @@ class TextScanner extends EventDispatcher {
_onPointerMove(e) {
if (!e.isPrimary) { return; }
switch (e.pointerType) {
switch (this._getPointerEventType(e)) {
case 'mouse': return this._onMousePointerMove(e);
case 'touch': return this._onTouchPointerMove(e);
case 'pen': return this._onPenPointerMove(e);
@ -417,7 +424,7 @@ class TextScanner extends EventDispatcher {
_onPointerUp(e) {
if (!e.isPrimary) { return; }
switch (e.pointerType) {
switch (this._getPointerEventType(e)) {
case 'mouse': return this._onMousePointerUp(e);
case 'touch': return this._onTouchPointerUp(e);
case 'pen': return this._onPenPointerUp(e);
@ -425,6 +432,7 @@ class TextScanner extends EventDispatcher {
}
_onPointerCancel(e) {
this._pointerIdTypeMap.delete(e.pointerId);
if (!e.isPrimary) { return; }
switch (e.pointerType) {
case 'mouse': return this._onMousePointerCancel(e);
@ -434,6 +442,7 @@ class TextScanner extends EventDispatcher {
}
_onPointerOut(e) {
this._pointerIdTypeMap.delete(e.pointerId);
if (!e.isPrimary) { return; }
switch (e.pointerType) {
case 'mouse': return this._onMousePointerOut(e);
@ -812,4 +821,10 @@ class TextScanner extends EventDispatcher {
if (pen) { set.add('pen'); }
return set;
}
_getPointerEventType(e) {
// Workaround for Firefox bug not detecting certain 'touch' events as 'pen' events.
const cachedPointerType = this._pointerIdTypeMap.get(e.pointerId);
return (typeof cachedPointerType !== 'undefined' ? cachedPointerType : e.pointerType);
}
}