69 lines
1.7 KiB
JavaScript
69 lines
1.7 KiB
JavaScript
import { ref } from "vue";
|
|
import { TAP_OFFSET } from "../utils/index.mjs";
|
|
function getDirection(x, y) {
|
|
if (x > y) {
|
|
return "horizontal";
|
|
}
|
|
if (y > x) {
|
|
return "vertical";
|
|
}
|
|
return "";
|
|
}
|
|
function useTouch() {
|
|
const startX = ref(0);
|
|
const startY = ref(0);
|
|
const deltaX = ref(0);
|
|
const deltaY = ref(0);
|
|
const offsetX = ref(0);
|
|
const offsetY = ref(0);
|
|
const direction = ref("");
|
|
const isTap = ref(true);
|
|
const isVertical = () => direction.value === "vertical";
|
|
const isHorizontal = () => direction.value === "horizontal";
|
|
const reset = () => {
|
|
deltaX.value = 0;
|
|
deltaY.value = 0;
|
|
offsetX.value = 0;
|
|
offsetY.value = 0;
|
|
direction.value = "";
|
|
isTap.value = true;
|
|
};
|
|
const start = (event) => {
|
|
reset();
|
|
startX.value = event.touches[0].clientX;
|
|
startY.value = event.touches[0].clientY;
|
|
};
|
|
const move = (event) => {
|
|
const touch = event.touches[0];
|
|
deltaX.value = (touch.clientX < 0 ? 0 : touch.clientX) - startX.value;
|
|
deltaY.value = touch.clientY - startY.value;
|
|
offsetX.value = Math.abs(deltaX.value);
|
|
offsetY.value = Math.abs(deltaY.value);
|
|
const LOCK_DIRECTION_DISTANCE = 10;
|
|
if (!direction.value || offsetX.value < LOCK_DIRECTION_DISTANCE && offsetY.value < LOCK_DIRECTION_DISTANCE) {
|
|
direction.value = getDirection(offsetX.value, offsetY.value);
|
|
}
|
|
if (isTap.value && (offsetX.value > TAP_OFFSET || offsetY.value > TAP_OFFSET)) {
|
|
isTap.value = false;
|
|
}
|
|
};
|
|
return {
|
|
move,
|
|
start,
|
|
reset,
|
|
startX,
|
|
startY,
|
|
deltaX,
|
|
deltaY,
|
|
offsetX,
|
|
offsetY,
|
|
direction,
|
|
isVertical,
|
|
isHorizontal,
|
|
isTap
|
|
};
|
|
}
|
|
export {
|
|
useTouch
|
|
};
|