使用Mixins在Polymer 2.x中进行状态管理的工作演示
在Polymer 2.0中实现由@CaptainCodeman编写的管理状态中包含的代码-超越父/子绑定 在分离的DOM元素之间共享状态,无需重复 我得到以下错误 run.plnkr.co/:5 GET run.plnkr.co/:1获取500() run.plnkr.co/:1获取500() my-view2.html:26使用Mixins在Polymer 2.x中进行状态管理的工作演示,polymer,state,polymer-2.x,polymer-2.0,Polymer,State,Polymer 2.x,Polymer 2.0,在Polymer 2.0中实现由@CaptainCodeman编写的管理状态中包含的代码-超越父/子绑定 在分离的DOM元素之间共享状态,无需重复 我得到以下错误 run.plnkr.co/:5 GET run.plnkr.co/:1获取500() run.plnkr.co/:1获取500() my-view2.html:26 <link rel="import" href="../bower_components/polymer/polymer-elemen
<link rel="import" href="../bower_components/polymer/polymer-element.html">
<link rel="import" href="my-options.html">
<link rel="import" href="shared-styles.html">
<dom-module id="my-view2">
<template>
<style include="shared-styles">
:host {
display: block;
padding: 10px;
}
</style>
<div class="card">
<div class="circle">2</div>
<h1>View Two</h1>
<p>Ea duis bonorum nec, falli paulo aliquid ei eum.</p>
<p>Id nam odio natum malorum, tibique copiosae expetenda mel ea.Detracto suavitate repudiandae no eum. Id adhuc minim soluta nam.Id nam odio natum malorum, tibique copiosae expetenda mel ea.</p>
<p>Send notifications option is: <b>[[ options.subscribe ]]</b></p>
</div>
</template>
<script>
class MyView2 extends MyOptionsMixin(Polymer.Element) {
static get is() { return 'my-view2'; }
}
window.customElements.define(MyView2.is, MyView2);
</script>
</dom-module>
未捕获引用错误:
MyOptionMixin未在my-view2中定义。html:26
<link rel="import" href="../bower_components/polymer/polymer-element.html">
<link rel="import" href="my-options.html">
<link rel="import" href="shared-styles.html">
<dom-module id="my-view2">
<template>
<style include="shared-styles">
:host {
display: block;
padding: 10px;
}
</style>
<div class="card">
<div class="circle">2</div>
<h1>View Two</h1>
<p>Ea duis bonorum nec, falli paulo aliquid ei eum.</p>
<p>Id nam odio natum malorum, tibique copiosae expetenda mel ea.Detracto suavitate repudiandae no eum. Id adhuc minim soluta nam.Id nam odio natum malorum, tibique copiosae expetenda mel ea.</p>
<p>Send notifications option is: <b>[[ options.subscribe ]]</b></p>
</div>
</template>
<script>
class MyView2 extends MyOptionsMixin(Polymer.Element) {
static get is() { return 'my-view2'; }
}
window.customElements.define(MyView2.is, MyView2);
</script>
</dom-module>
有人有这个的工作演示吗
my-options.html
<link rel="import" href="../bower_components/polymer/polymer-element.html">
<link rel="import" href="../bower_components/paper-checkbox/paper-checkbox.html">
<dom-module id="my-options">
<template>
<style>
:host {
display: block;
padding: 16px;
}
h3, p {
margin: 8px 0;
}
</style>
<h3>Options</h3>
<p>
<paper-checkbox checked="{{ options.subscribe }}">Send Notifications</paper-checkbox>
</p>
</template>
<script>
(function() {
let optionsInstance = null;
class MyOptions extends Polymer.Element {
static get is() { return 'my-options'; }
static get properties() {
return {
options: {
type: Object,
value: () => ({
subscribe: false
})
},
subscribers: {
type: Array,
value: () => []
}
}
}
static get observers() {
return [
'optionsChanged(options.*)'
]
}
constructor() {
super();
if (!optionsInstance) optionsInstance = this;
}
register(subscriber) {
this.subscribers.push(subscriber);
subscriber.options = this.options;
subscriber.notifyPath('options');
}
unregister(subscriber) {
var i = this.subscribers.indexOf(subscriber);
if (i > -1) this.subscribers.splice(i, 1)
}
optionsChanged(change) {
for(var i = 0; i < this.subscribers.length; i++) {
this.subscribers[i].notifyPath(change.path);
}
}
}
window.customElements.define(MyOptions.is, MyOptions);
MyOptionsMixin = (superClass) => {
return class extends superClass {
static get properties() {
return {
options: {
type: Object
}
}
}
connectedCallback() {
super.connectedCallback();
optionsInstance.register(this);
}
disconnectedCallback() {
super.disconnectedCallback();
optionsInstance.unregister(this);
}
}
}
}());
</script>
</dom-module>
:主持人{
显示:块;
填充:16px;
}
h3,p{
利润率:8px0;
}
选择权
发送通知
(功能(){
让optionInstance=null;
类MyOptions扩展了Polymer.Element{
静态get是(){return'my options';}
静态获取属性(){
返回{
选项:{
类型:对象,
值:()=>({
订阅:false
})
},
订户:{
类型:数组,
值:()=>[]
}
}
}
静态获取观察器(){
返回[
'选项已更改(选项。*)'
]
}
构造函数(){
超级();
如果(!optionInstance)optionInstance=this;
}
登记册(订户){
this.subscribers.push(subscriber);
subscriber.options=this.options;
subscriber.notifyPath('options');
}
注销(订户){
var i=this.subscribers.indexOf(订户);
如果(i>-1)此.subscribers.splice(i,1)
}
选项已更改(更改){
对于(var i=0;i{
返回类扩展了超类{
静态获取属性(){
返回{
选项:{
类型:对象
}
}
}
connectedCallback(){
super.connectedCallback();
optionInstance.register(此选项);
}
disconnectedCallback(){
super.disconnectedCallback();
选项实例。取消注册(此选项);
}
}
}
}());
my-view2.html
<link rel="import" href="../bower_components/polymer/polymer-element.html">
<link rel="import" href="my-options.html">
<link rel="import" href="shared-styles.html">
<dom-module id="my-view2">
<template>
<style include="shared-styles">
:host {
display: block;
padding: 10px;
}
</style>
<div class="card">
<div class="circle">2</div>
<h1>View Two</h1>
<p>Ea duis bonorum nec, falli paulo aliquid ei eum.</p>
<p>Id nam odio natum malorum, tibique copiosae expetenda mel ea.Detracto suavitate repudiandae no eum. Id adhuc minim soluta nam.Id nam odio natum malorum, tibique copiosae expetenda mel ea.</p>
<p>Send notifications option is: <b>[[ options.subscribe ]]</b></p>
</div>
</template>
<script>
class MyView2 extends MyOptionsMixin(Polymer.Element) {
static get is() { return 'my-view2'; }
}
window.customElements.define(MyView2.is, MyView2);
</script>
</dom-module>
:主持人{
显示:块;
填充:10px;
}
2.
视图二
这是一个很好的例子,保罗的流动性很好
我不知道该怎么办,因为我国的泰比克人的经验是有限的。这是一个非常小的解决方案,它是一个非常小的解决方案
发送通知选项为:[[options.subscribe]]
类MyView2扩展了MyOptionMixin(Polymer.Element){
静态get是(){return'my-view2';}
}
window.customElements.define(MyView2.is,MyView2);
编辑:(已接受的答案分叉并编辑)
run.plnkr.co/:5 GET 您的
标记导入一个不存在的文件:
https://cdn.rawgit.com/download/polymer-cdn/2.0.0/lib/webcomponentsjs/webcomponents-lite.min.js
我会使用与Plunker其余部分相同的polygit.org
URL:
https://polygit.org/polymer+v2.0.0/shadycss+webcomponents+1.0.0/components/
此外,脚本名称不再包括min
。实际文件名是webcomponents lite.js
。
标记应如下所示:
<script src="https://polygit.org/polymer+v2.0.0/shadycss+webcomponents+1.0.0/components/webcomponentsjs/webcomponents-lite.js"></script>
此处导入的唯一需要来自polygit.org
的文件是polymer element.html
,因此您可以删除
标记并将URL前缀移动到该导入:
<link rel="import" href="https://polygit.org/polymer+v2.0.0/shadycss+webcomponents+1.0.0/components/polymer/polymer-element.html">
目前,AFAIK是聚合物状态管理的最佳实践。它似乎比以前更受欢迎。有人能证实或否认这一点吗?