多个自定义 style 属性绑定

components.my-component.js

import Component from 'ember-component';
import computed from 'ember-computed';
import get from 'ember-metal/get';
import {htmlSafe} from 'ember-string';

export default Component.extend({
  textColor: computed('customText', function() {
    const value = get(this, 'customText');
    return value ? `color: ${value};` : '';
  }),
  
  bgColor: computed('customColor', function() {
    const value = get(this, 'customColor');
    return value ? `background-color: ${value};` : '';
  }),
  
  style: computed('textColor', 'bgColor', function() {
    return htmlSafe(`${get(this, 'textColor')}${get(this, 'bgColor')}`);
  }),
  
  attributeBindings: ['style']
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>

templates.components.my-component.hbs

{{yield}}

test

templates.index.hbs

{{my-component customText="yellow" customColor="blue"}}
{{my-component customText="red"}}
{{my-component customColor="green"}}

twiddle.json

{
  "version": "0.11.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "//cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.2",
    "ember-template-compiler": "2.10.2",
    "ember-testing": "2.10.2"
  },
  "addons": {}
}