black
a5a558eff3
- 添加 Vant WeApp 组件库的多个组件和工具文件 - 新增的组件包括 calendar、circle、collapse、dialog 等- 添加了常用的工具函数和样式文件 - 在 app.js 中集成了 Vant WeApp 组件库
48 lines
1.8 KiB
JavaScript
48 lines
1.8 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.pageScrollMixin = void 0;
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var validator_1 = require("../common/validator");
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var utils_1 = require("../common/utils");
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function onPageScroll(event) {
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var _a = (0, utils_1.getCurrentPage)().vanPageScroller, vanPageScroller = _a === void 0 ? [] : _a;
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vanPageScroller.forEach(function (scroller) {
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if (typeof scroller === 'function') {
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// @ts-ignore
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scroller(event);
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}
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});
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}
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function pageScrollMixin(scroller) {
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return Behavior({
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attached: function () {
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var page = (0, utils_1.getCurrentPage)();
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if (!(0, utils_1.isDef)(page)) {
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return;
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}
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var _scroller = scroller.bind(this);
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var _a = page.vanPageScroller, vanPageScroller = _a === void 0 ? [] : _a;
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if ((0, validator_1.isFunction)(page.onPageScroll) && page.onPageScroll !== onPageScroll) {
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vanPageScroller.push(page.onPageScroll.bind(page));
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}
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vanPageScroller.push(_scroller);
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page.vanPageScroller = vanPageScroller;
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page.onPageScroll = onPageScroll;
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this._scroller = _scroller;
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},
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detached: function () {
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var _this = this;
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var page = (0, utils_1.getCurrentPage)();
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if (!(0, utils_1.isDef)(page) || !(0, utils_1.isDef)(page.vanPageScroller)) {
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return;
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}
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var vanPageScroller = page.vanPageScroller;
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var index = vanPageScroller.findIndex(function (v) { return v === _this._scroller; });
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if (index > -1) {
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page.vanPageScroller.splice(index, 1);
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}
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this._scroller = undefined;
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},
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});
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}
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exports.pageScrollMixin = pageScrollMixin;
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