是否可以将数据从Polymer组件传递到Vue组件?

问题描述 投票:1回答:1

下面的代码是我想要做的,但它目前不起作用。我正在尝试在Polymer应用程序中开始构建Vue组件,以此作为缓慢迁移Polymer的方法。

我已经能够在我的Polymer应用程序中使用Vue组件,但我仍然坚持如何将数据从Polymer组件传递到Vue组件。理想情况下,我想要做的是将Polymer属性传递给Vue组件,就像我在下面使用testValue一样(尽管下面的代码不起作用)

非常感谢任何指针,谢谢!

<dom-module id="part-input-view">
  <template>
    <style include="part-input-view-styles"></style>
    <div id="vueApp">
      <vue-comp id="test" test$="[[testValue]]"></vue-comp>
    </div>
  </template>

  <script>
    class PartInputView extends Polymer.Element {
      static get is() { return 'part-input-view'; }

      constructor() {
        super();
      }

      static get properties() {
        return {
          testValue: 'This is working!'
        };
      }

      ready() {
        super.ready();
        Vue.component('vue-comp', {
          props: ['test'],
          template: '<div class="vue-comp">{{test}}</div>'
        })
        const el = this.shadowRoot.querySelector('#vueApp')
        let vueApp = new Vue({
          el
        });
      }
    }
  </script>
</dom-module>
vue.js polymer vue-component polymer-2.x
1个回答
2
投票

是的,这是可能的。如果您的[不正确的]财产声明不符合您的代码将会工作。您应该在控制台中看到此错误:

element-mixin.html:122 Uncaught TypeError: Cannot use 'in' operator to search for 'value' in This is working!
    at propertyDefaults (element-mixin.html:122)
    at HTMLElement._initializeProperties (element-mixin.html:565)
    at new PropertiesChanged (properties-changed.html:175)
    at new PropertyAccessors (property-accessors.html:120)
    at new TemplateStamp (template-stamp.html:126)
    at new PropertyEffects (property-effects.html:1199)
    at new PropertiesMixin (properties-mixin.html:120)
    at new PolymerElement (element-mixin.html:517)
    at new PartInputView (part-input-view.html:17)
    at HTMLElement._stampTemplate (template-stamp.html:473)

在Polymer中,具有默认值的字符串属性只能声明为:

static get properties() {
  return {
    NAME: {
      type: String,
      value: 'My default value'
    }
  }
}

这没有简写。您可能会混淆未初始化属性的简写,即:

static get properties() {
  return {
    NAME: String
  }
}

如果您修复了该错误,您会注意到您的代码有效...

class PartInputView extends Polymer.Element {
  static get is() { return 'part-input-view'; }

  static get properties() {
    return {
      testValue: {
        type: String,
        value: 'This is working!'
      }
    };
  }

  ready() {
    super.ready();
    Vue.component('vue-comp', {
      props: ['test'],
      template: '<div class="vue-comp">{{test}}</div>'
    })
    const el = this.shadowRoot.querySelector('#vueApp')
    let vueApp = new Vue({
      el
    });
  }
}

customElements.define(PartInputView.is, PartInputView)
<head>
  <script src="https://unpkg.com/[email protected]"></script>
  <base href="https://cdn.rawgit.com/download/polymer-cdn/2.6.0.2/lib/">
  <script src="webcomponentsjs/webcomponents-loader.js"></script>
  <link rel="import" href="polymer/polymer.html">
</head>
<body>
  <part-input-view></part-input-view>

  <dom-module id="part-input-view">
    <template>
      <style include="part-input-view-styles"></style>
      <div id="vueApp">
        <vue-comp id="test" test$="[[testValue]]"></vue-comp>
      </div>
    </template>
  </dom-module>
</body>
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