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- "use strict";
- const common_vendor = require("../../../../common/vendor.js");
- const uni_modules_uviewPlus_libs_function_index = require("../function/index.js");
- const uni_modules_uviewPlus_libs_function_test = require("../function/test.js");
- const uni_modules_uviewPlus_libs_util_route = require("../util/route.js");
- const mixin = {
- // 定义每个组件都可能需要用到的外部样式以及类名
- props: {
- // 每个组件都有的父组件传递的样式,可以为字符串或者对象形式
- customStyle: {
- type: [Object, String],
- default: () => ({})
- },
- customClass: {
- type: String,
- default: ""
- },
- // 跳转的页面路径
- url: {
- type: String,
- default: ""
- },
- // 页面跳转的类型
- linkType: {
- type: String,
- default: "navigateTo"
- }
- },
- data() {
- return {};
- },
- onLoad() {
- this.$u.getRect = this.$uGetRect;
- },
- created() {
- this.$u.getRect = this.$uGetRect;
- },
- computed: {
- // 在2.x版本中,将会把$u挂载到uni对象下,导致在模板中无法使用uni.$u.xxx形式
- // 所以这里通过computed计算属性将其附加到this.$u上,就可以在模板或者js中使用uni.$u.xxx
- // 只在nvue环境通过此方式引入完整的$u,其他平台会出现性能问题,非nvue则按需引入(主要原因是props过大)
- $u() {
- return uni_modules_uviewPlus_libs_function_index.deepMerge(common_vendor.index.$u, {
- props: void 0,
- http: void 0,
- mixin: void 0
- });
- },
- /**
- * 生成bem规则类名
- * 由于微信小程序,H5,nvue之间绑定class的差异,无法通过:class="[bem()]"的形式进行同用
- * 故采用如下折中做法,最后返回的是数组(一般平台)或字符串(支付宝和字节跳动平台),类似['a', 'b', 'c']或'a b c'的形式
- * @param {String} name 组件名称
- * @param {Array} fixed 一直会存在的类名
- * @param {Array} change 会根据变量值为true或者false而出现或者隐藏的类名
- * @returns {Array|string}
- */
- bem() {
- return function(name, fixed, change) {
- const prefix = `u-${name}--`;
- const classes = {};
- if (fixed) {
- fixed.map((item) => {
- classes[prefix + this[item]] = true;
- });
- }
- if (change) {
- change.map((item) => {
- this[item] ? classes[prefix + item] = this[item] : delete classes[prefix + item];
- });
- }
- return Object.keys(classes);
- };
- }
- },
- methods: {
- // 跳转某一个页面
- openPage(urlKey = "url") {
- const url = this[urlKey];
- if (url) {
- uni_modules_uviewPlus_libs_util_route.route({ type: this.linkType, url });
- }
- },
- // 查询节点信息
- // 目前此方法在支付宝小程序中无法获取组件跟接点的尺寸,为支付宝的bug(2020-07-21)
- // 解决办法为在组件根部再套一个没有任何作用的view元素
- $uGetRect(selector, all) {
- return new Promise((resolve) => {
- common_vendor.index.createSelectorQuery().in(this)[all ? "selectAll" : "select"](selector).boundingClientRect((rect) => {
- if (all && Array.isArray(rect) && rect.length) {
- resolve(rect);
- }
- if (!all && rect) {
- resolve(rect);
- }
- }).exec();
- });
- },
- getParentData(parentName = "") {
- if (!this.parent)
- this.parent = {};
- this.parent = uni_modules_uviewPlus_libs_function_index.$parent.call(this, parentName);
- if (this.parent.children) {
- this.parent.children.indexOf(this) === -1 && this.parent.children.push(this);
- }
- if (this.parent && this.parentData) {
- Object.keys(this.parentData).map((key) => {
- this.parentData[key] = this.parent[key];
- });
- }
- },
- // 阻止事件冒泡
- preventEvent(e) {
- e && typeof e.stopPropagation === "function" && e.stopPropagation();
- },
- // 空操作
- noop(e) {
- this.preventEvent(e);
- }
- },
- onReachBottom() {
- common_vendor.index.$emit("uOnReachBottom");
- },
- beforeUnmount() {
- if (this.parent && uni_modules_uviewPlus_libs_function_test.test.array(this.parent.children)) {
- const childrenList = this.parent.children;
- childrenList.map((child, index) => {
- if (child === this) {
- childrenList.splice(index, 1);
- }
- });
- }
- }
- };
- exports.mixin = mixin;
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