ziko
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A versatile JavaScript library offering a rich set of Hyperscript Based UI components, advanced mathematical utilities, interactivity ,animations, client side routing and more ...
36 lines (30 loc) • 950 B
JavaScript
export function ptr_details_setter() {
const rect = this.targetElement.getBoundingClientRect();
const e = this.event;
let x = (e.clientX - rect.left) | 0;
let y = (e.clientY - rect.top) | 0;
if(this.cache.useNormalisedCoordinates){
const w = this.targetElement.clientWidth;
const h = this.targetElement.clientHeight;
x = +((x / w) * 2 - 1).toFixed(8);
y = +((y / h) * -2 + 1).toFixed(8);
}
switch (this.currentEvent) {
case "pointerdown":
this.dx = x;
this.dy = y;
this.isDown = true;
break;
case "pointermove":
this.mx = x;
this.my = y;
this.isMoving = true;
break;
case "pointerup":
this.ux = x;
this.uy = y;
this.isDown = false;
this.isMoving = false;
break;
}
}