324 lines
13 KiB
JavaScript
324 lines
13 KiB
JavaScript
import { defineMixin } from '../vue'
|
||
import { deepMerge, $parent, sleep } from '../function/index'
|
||
import test from '../function/test'
|
||
import route from '../util/route'
|
||
import {
|
||
applyNativeThemeUI,
|
||
applyNativeThemeUIDeferred,
|
||
getThemeCardStyle,
|
||
getThemeIsDark,
|
||
getThemePageStyle,
|
||
getThemeVar,
|
||
getThemeVarsForStyle,
|
||
syncThemeRuntimeFromStorage
|
||
} from '../theme/runtime'
|
||
// #ifdef APP-NVUE
|
||
// 由于weex为阿里的KPI业绩考核的产物,所以不支持百分比单位,这里需要通过dom查询组件的宽度
|
||
const dom = (typeof uni !== 'undefined' && uni && typeof uni.requireNativePlugin === 'function')
|
||
? uni.requireNativePlugin('dom')
|
||
: null
|
||
// #endif
|
||
|
||
export const mixin = defineMixin({
|
||
// 定义每个组件都可能需要用到的外部样式以及类名
|
||
props: {
|
||
// 每个组件都有的父组件传递的样式,可以为字符串或者对象形式
|
||
customStyle: {
|
||
type: [Object, String],
|
||
default: () => ({})
|
||
},
|
||
customClass: {
|
||
type: String,
|
||
default: ''
|
||
},
|
||
// 跳转的页面路径
|
||
url: {
|
||
type: String,
|
||
default: ''
|
||
},
|
||
// 页面跳转的类型
|
||
linkType: {
|
||
type: String,
|
||
default: 'navigateTo'
|
||
}
|
||
},
|
||
data() {
|
||
return {
|
||
__upPageThemeChangeHandler: null,
|
||
upThemeVersion: 0
|
||
}
|
||
},
|
||
onLoad() {
|
||
// getRect挂载到$u上,因为这方法需要使用in(this),所以无法把它独立成一个单独的文件导出
|
||
this.upBindGetRect()
|
||
this.upInitThemeVersion()
|
||
if (this.upIsPageScope()) {
|
||
this.upApplyNativeThemeUI()
|
||
if (typeof uni !== 'undefined' && typeof uni.$on === 'function' && !this.__upPageThemeChangeHandler) {
|
||
this.__upPageThemeChangeHandler = () => {
|
||
this.upApplyNativeThemeUI()
|
||
}
|
||
uni.$on('uThemeChange', this.__upPageThemeChangeHandler)
|
||
}
|
||
}
|
||
},
|
||
onShow() {
|
||
if (this.upIsPageScope()) {
|
||
this.upApplyNativeThemeUI()
|
||
}
|
||
},
|
||
created() {
|
||
// 组件当中,只有created声明周期,为了能在组件使用,故也在created中将方法挂载到$u
|
||
this.upBindGetRect()
|
||
this.upInitThemeVersion()
|
||
if (typeof uni !== 'undefined' && typeof uni.$on === 'function') {
|
||
this.__uThemeChangeHandler = (payload = {}) => {
|
||
this.upSyncThemeVersion(payload)
|
||
this.upClearUCache()
|
||
if (typeof this.$forceUpdate === 'function') {
|
||
this.$forceUpdate()
|
||
}
|
||
}
|
||
uni.$on('uThemeChange', this.__uThemeChangeHandler)
|
||
}
|
||
},
|
||
computed: {
|
||
// 在2.x版本中,将会把$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)
|
||
$u() {
|
||
this.upThemeVersion
|
||
// #ifndef APP-NVUE
|
||
const instance = this.$
|
||
if (instance?.__upUCache) {
|
||
return instance.__upUCache
|
||
}
|
||
// 在非nvue端,移除props,http,mixin等对象,避免在小程序setData时数据过大影响性能
|
||
let mergeU = deepMerge(uni.$u, {
|
||
props: undefined,
|
||
http: undefined,
|
||
mixin: undefined
|
||
})
|
||
// 缓存结果避免每次计算
|
||
if (instance) {
|
||
instance.__upUCache = mergeU
|
||
return instance.__upUCache
|
||
}
|
||
return mergeU
|
||
// #endif
|
||
// #ifdef APP-NVUE
|
||
return uni.$u
|
||
// #endif
|
||
},
|
||
upThemeIsDark() {
|
||
this.upThemeVersion
|
||
return getThemeIsDark(this.$u)
|
||
},
|
||
upThemeVars() {
|
||
this.upThemeVersion
|
||
return getThemeVarsForStyle(this.$u)
|
||
},
|
||
upThemePageStyle() {
|
||
this.upThemeVersion
|
||
return getThemePageStyle(this.$u)
|
||
},
|
||
upThemeCardStyle() {
|
||
this.upThemeVersion
|
||
return getThemeCardStyle(this.$u)
|
||
},
|
||
/**
|
||
* 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) {
|
||
// 类名前缀
|
||
const prefix = `u-${name}--`
|
||
const classes = {}
|
||
if (fixed) {
|
||
fixed.map((item) => {
|
||
// 这里的类名,会一直存在
|
||
classes[prefix + this[item]] = true
|
||
})
|
||
}
|
||
if (change) {
|
||
change.map((item) => {
|
||
// 这里的类名,会根据this[item]的值为true或者false,而进行添加或者移除某一个类
|
||
this[item] ? (classes[prefix + item] = this[item]) : (delete classes[prefix + item])
|
||
})
|
||
}
|
||
return Object.keys(classes)
|
||
// 支付宝,头条小程序无法动态绑定一个数组类名,否则解析出来的结果会带有",",而导致失效
|
||
// #ifdef MP-ALIPAY || MP-TOUTIAO || MP-LARK
|
||
.join(' ')
|
||
// #endif
|
||
}
|
||
}
|
||
},
|
||
methods: {
|
||
upClearUCache() {
|
||
if (this.$) {
|
||
this.$.__upUCache = null
|
||
}
|
||
},
|
||
upBindGetRect() {
|
||
const upU = this.$u || (typeof uni !== 'undefined' ? uni.$u : null)
|
||
if (upU) {
|
||
upU.getRect = this.$uGetRect
|
||
} else if (typeof uni !== 'undefined') {
|
||
uni.$u = {
|
||
getRect: this.$uGetRect
|
||
}
|
||
}
|
||
},
|
||
upReadThemeVersion() {
|
||
return Number((typeof uni !== 'undefined' && uni.$u && uni.$u.theme && uni.$u.theme.version) || 0)
|
||
},
|
||
upInitThemeVersion() {
|
||
const version = this.upReadThemeVersion()
|
||
if (version) {
|
||
this.upThemeVersion = version
|
||
}
|
||
},
|
||
upSyncThemeVersion(payload = {}) {
|
||
const version = Number(payload.version || this.upReadThemeVersion() || 0)
|
||
this.upThemeVersion = version || Number(this.upThemeVersion || 0) + 1
|
||
},
|
||
upIsPageScope() {
|
||
return !!(this.$page || this.route || this.$options?.mpType === 'page')
|
||
},
|
||
upHasProp(propName) {
|
||
const vnodeProps = this.$?.vnode?.props || {}
|
||
const kebabName = propName.replace(/[A-Z]/g, (s) => `-${s.toLowerCase()}`)
|
||
return Object.prototype.hasOwnProperty.call(vnodeProps, propName)
|
||
|| Object.prototype.hasOwnProperty.call(vnodeProps, kebabName)
|
||
},
|
||
upThemeVar(varName, fallbackColor) {
|
||
this.upThemeVersion
|
||
return getThemeVar(varName, fallbackColor, this.$u)
|
||
},
|
||
upApplyNativeThemeUI() {
|
||
syncThemeRuntimeFromStorage(this.$u)
|
||
this.upSyncThemeVersion()
|
||
applyNativeThemeUIDeferred(this.$u)
|
||
},
|
||
// 跳转某一个页面
|
||
openPage(urlKey = 'url') {
|
||
const url = this[urlKey]
|
||
if (url) {
|
||
// h5官方回应:发行h5会自动摇树优化,所有使用uni的地方,都会被直接转换成具体的API调用 https://ask.dcloud.net.cn/question/161523?notification_id-1201922__rf-false__item_id-226372
|
||
// 使用封装的 route 进行跳转(直接调用方法),不使用 uni 对象
|
||
route({ type: this.linkType, url })
|
||
// 执行类似uni.navigateTo的方法
|
||
// uni[this.linkType]({
|
||
// url
|
||
// })
|
||
}
|
||
},
|
||
navTo(url = '', linkType = 'navigateTo') {
|
||
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
|
||
$uGetRect(selector, all) {
|
||
return new Promise((resolve) => {
|
||
// #ifndef APP-NVUE
|
||
uni.createSelectorQuery()
|
||
.in(this)[all ? 'selectAll' : 'select'](selector)
|
||
.boundingClientRect((rect) => {
|
||
if (all && Array.isArray(rect) && rect.length) {
|
||
resolve(rect)
|
||
}
|
||
if (!all && rect) {
|
||
resolve(rect)
|
||
}
|
||
})
|
||
.exec()
|
||
// #endif
|
||
|
||
// #ifdef APP-NVUE
|
||
sleep(30).then(() => {
|
||
let selectorNvue = selector.substring(1) // 去掉开头的#或者.
|
||
let selectorRef = this.$refs[selectorNvue]
|
||
if (!selectorRef) {
|
||
// console.log('不存在元素,请检查是否设置了ref属性' + selectorNvue + '。')
|
||
resolve({
|
||
with: 0,
|
||
height: 0,
|
||
left: 0,
|
||
right: 0,
|
||
top: 0,
|
||
bottom: 0
|
||
})
|
||
}
|
||
dom.getComponentRect(selectorRef, res => {
|
||
// console.log(res)
|
||
resolve(res.size)
|
||
})
|
||
})
|
||
// #endif
|
||
})
|
||
},
|
||
getParentData(parentName = '') {
|
||
// 避免在created中去定义parent变量
|
||
if (!this.parent) this.parent = {}
|
||
// 这里的本质原理是,通过获取父组件实例(也即类似u-radio的父组件u-radio-group的this)
|
||
// 将父组件this中对应的参数,赋值给本组件(u-radio的this)的parentData对象中对应的属性
|
||
// 之所以需要这么做,是因为所有端中,头条小程序不支持通过this.parent.xxx去监听父组件参数的变化
|
||
// 此处并不会自动更新子组件的数据,而是依赖父组件u-radio-group去监听data的变化,手动调用更新子组件的方法去重新获取
|
||
this.parent = $parent.call(this, parentName)
|
||
if (this.parent.children) {
|
||
// 如果父组件的children不存在本组件的实例,才将本实例添加到父组件的children中
|
||
this.parent.children.indexOf(this) === -1 && this.parent.children.push(this)
|
||
}
|
||
if (this.parent && this.parentData) {
|
||
// 历遍parentData中的属性,将parent中的同名属性赋值给parentData
|
||
Object.keys(this.parentData).map((key) => {
|
||
this.parentData[key] = this.parent[key]
|
||
})
|
||
}
|
||
},
|
||
// 阻止事件冒泡
|
||
preventEvent(e) {
|
||
e && typeof (e.stopPropagation) === 'function' && e.stopPropagation()
|
||
},
|
||
// 空操作
|
||
noop(e) {
|
||
this.preventEvent(e)
|
||
}
|
||
},
|
||
onReachBottom() {
|
||
uni.$emit('uOnReachBottom')
|
||
},
|
||
beforeUnmount() {
|
||
// 判断当前页面是否存在parent和chldren,一般在checkbox和checkbox-group父子联动的场景会有此情况
|
||
// 组件销毁时,移除子组件在父组件children数组中的实例,释放资源,避免数据混乱
|
||
if (this.parent && test.array(this.parent.children)) {
|
||
// 组件销毁时,移除父组件中的children数组中对应的实例
|
||
const childrenList = this.parent.children
|
||
childrenList.map((child, index) => {
|
||
// 如果相等,则移除
|
||
if (child === this) {
|
||
childrenList.splice(index, 1)
|
||
}
|
||
})
|
||
}
|
||
if (typeof uni !== 'undefined' && typeof uni.$off === 'function' && this.__uThemeChangeHandler) {
|
||
uni.$off('uThemeChange', this.__uThemeChangeHandler)
|
||
this.__uThemeChangeHandler = null
|
||
}
|
||
if (typeof uni !== 'undefined' && typeof uni.$off === 'function' && this.__upPageThemeChangeHandler) {
|
||
uni.$off('uThemeChange', this.__upPageThemeChangeHandler)
|
||
this.__upPageThemeChangeHandler = null
|
||
}
|
||
}
|
||
})
|
||
|
||
export default mixin
|