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Code Issues Releases Wiki Activity

touch coordinate fix

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Pomax
2020-08-08 12:29:12 -07:00
parent 89c7fe9d93
commit 9bc1749b35
1 changed files with 11 additions and 5 deletions
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16
lib/custom-element/api/base-api.js
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@@ -90,13 +90,19 @@ class BaseAPI {
*
*/
getCursorCoords(evt) {
const left = evt.target.offsetLeft,
top = evt.target.offsetTop;
if (evt.targetTouches) {
const rect = evt.target.getBoundingClientRect();
this.cursor.x = evt.targetTouches[0].pageX - rect.left;
this.cursor.y = evt.targetTouches[0].pageY - rect.top;
const touch = evt.targetTouches;
for (let i=0; i<touch.length; i++) {
if (!touch[i] || !touch[i].pageX) continue;
this.cursor.x = touch[i].pageX - left;
this.cursor.y = touch[i].pageY - top;
break;
}
} else {
this.cursor.x = evt.offsetX;
this.cursor.y = evt.offsetY;
this.cursor.x = evt.pageX - left;
this.cursor.y = evt.pageY - top;
}
}