78 lines
2.8 KiB
JavaScript
78 lines
2.8 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, {
|
|
useLockScroll: () => useLockScroll
|
|
});
|
|
module.exports = __toCommonJS(stdin_exports);
|
|
var import_vue = require("vue");
|
|
var import_use = require("@vant/use");
|
|
var import_use_touch = require("./use-touch");
|
|
var import_utils = require("../utils");
|
|
let totalLockCount = 0;
|
|
const BODY_LOCK_CLASS = "van-overflow-hidden";
|
|
function useLockScroll(rootRef, shouldLock) {
|
|
const touch = (0, import_use_touch.useTouch)();
|
|
const DIRECTION_UP = "01";
|
|
const DIRECTION_DOWN = "10";
|
|
const onTouchMove = (event) => {
|
|
touch.move(event);
|
|
const direction = touch.deltaY.value > 0 ? DIRECTION_DOWN : DIRECTION_UP;
|
|
const el = (0, import_use.getScrollParent)(
|
|
event.target,
|
|
rootRef.value
|
|
);
|
|
const { scrollHeight, offsetHeight, scrollTop } = el;
|
|
let status = "11";
|
|
if (scrollTop === 0) {
|
|
status = offsetHeight >= scrollHeight ? "00" : "01";
|
|
} else if (scrollTop + offsetHeight >= scrollHeight) {
|
|
status = "10";
|
|
}
|
|
if (status !== "11" && touch.isVertical() && !(parseInt(status, 2) & parseInt(direction, 2))) {
|
|
(0, import_utils.preventDefault)(event, true);
|
|
}
|
|
};
|
|
const lock = () => {
|
|
document.addEventListener("touchstart", touch.start);
|
|
document.addEventListener("touchmove", onTouchMove, { passive: false });
|
|
if (!totalLockCount) {
|
|
document.body.classList.add(BODY_LOCK_CLASS);
|
|
}
|
|
totalLockCount++;
|
|
};
|
|
const unlock = () => {
|
|
if (totalLockCount) {
|
|
document.removeEventListener("touchstart", touch.start);
|
|
document.removeEventListener("touchmove", onTouchMove);
|
|
totalLockCount--;
|
|
if (!totalLockCount) {
|
|
document.body.classList.remove(BODY_LOCK_CLASS);
|
|
}
|
|
}
|
|
};
|
|
const init = () => shouldLock() && lock();
|
|
const destroy = () => shouldLock() && unlock();
|
|
(0, import_use.onMountedOrActivated)(init);
|
|
(0, import_vue.onDeactivated)(destroy);
|
|
(0, import_vue.onBeforeUnmount)(destroy);
|
|
(0, import_vue.watch)(shouldLock, (value) => {
|
|
value ? lock() : unlock();
|
|
});
|
|
}
|