ckgl/node_modules/vant/lib/composables/use-touch.js
2024-12-21 13:52:42 +08:00

88 lines
2.7 KiB
JavaScript

var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var stdin_exports = {};
__export(stdin_exports, {
useTouch: () => useTouch
});
module.exports = __toCommonJS(stdin_exports);
var import_vue = require("vue");
var import_utils = require("../utils");
function getDirection(x, y) {
if (x > y) {
return "horizontal";
}
if (y > x) {
return "vertical";
}
return "";
}
function useTouch() {
const startX = (0, import_vue.ref)(0);
const startY = (0, import_vue.ref)(0);
const deltaX = (0, import_vue.ref)(0);
const deltaY = (0, import_vue.ref)(0);
const offsetX = (0, import_vue.ref)(0);
const offsetY = (0, import_vue.ref)(0);
const direction = (0, import_vue.ref)("");
const isTap = (0, import_vue.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 > import_utils.TAP_OFFSET || offsetY.value > import_utils.TAP_OFFSET)) {
isTap.value = false;
}
};
return {
move,
start,
reset,
startX,
startY,
deltaX,
deltaY,
offsetX,
offsetY,
direction,
isVertical,
isHorizontal,
isTap
};
}