Dynamic Layouts

components.my-component.js

import Ember from 'ember';

const {
  Component, get, set, observer, run, HTMLBars
} = Ember;

export default Component.extend({
  layoutSource: '',
  sourceObserver: observer('layoutSource', function() {
  	this.updateLayout();
  }),
  didInsertElement() {
  	this.updateLayout();
  },
  updateLayout() {
  	set(this, 'dynamicLayout', null);
    run.scheduleOnce('afterRender', this, function() {
    	set(this, 'dynamicLayout', HTMLBars.compile(get(this, 'layoutSource')));
    });
  },
  actions: {
  	setTemplate1(val) {
      let template1 = `
				<div class='temp1'>${val}</div>
				<style>
					.temp1 {
						margin-top: 10px;
    				padding: 10px;
    				color: black;
					}
				</style>
			`;
    	set(this, 'layoutSource', template1); 
    },
    setTemplate2(val) {
      let template2 = `
				<div class='temp2'>${val}</div>
				<style>
					.temp2 {
						margin-top: 10px;
						background-color: black;
    				padding: 10px;
						color: white;
					}
				</style>
			`;
    	set(this, 'layoutSource', template2); 
    }
  }
});

components.my-dynamic-component.js

import Ember from 'ember';

export default Ember.Component.extend({
});

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>
{{my-component}}
<br>
<br>

templates.components.my-component.hbs

<div style="display: inline-bock">
  <div style="text-align: center">
    {{textarea type='text' value=myText placeholder='enter text here'}}
  </div>
  <div style="text-align: center">
    <button role='button' {{action 'setTemplate1' myText}}>Template 1</button>
    <button role='button' {{action 'setTemplate2' myText}}>Template 2</button>
  </div>
  <div style="text-align: center">
    {{#if dynamicLayout}}
      {{my-dynamic-component layout=dynamicLayout}}
    {{/if}}
  </div>
</div>

twiddle.json

{
  "version": "0.14.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "2.18.2",
    "ember-template-compiler": "2.18.2",
    "ember-testing": "2.18.2"
  },
  "addons": {
    "ember-data": "2.18.2"
  }
}