Carousel

components.carousel-paginator.js

import Ember from 'ember';

export default Ember.Component.extend({
  activePage: Ember.computed('hireActivePage', function(){
    return this.get('hireActivePage');
  }),
  oddNumber: 1,
  didUpdateAttrs() {
    console.log("didUpdateAttrs - paginator");
    this._super(...arguments);
    this.updatePaginatorState();
  },
	updatePaginatorState() {
    console.log("updatePaginatorState - paginator");
  	this.moveToPage(this.get('activePage'));
  },
  actions: {
  	changeIndex() {
      console.log('changeIndex - paginator');
      this.oddNumber+=2;
    	this.set('activePage', this.oddNumber);
      this.updatePaginatorState();
    }
  }
});

components.hw-carousel.js

import Ember from 'ember';

export default Ember.Component.extend({
  currentPage: 1,
  actions: {
  	moveTo(pageNum) {
    	console.log('finally..' + pageNum);
      this.set('currentPage', pageNum);
    }
  }
});

components.newhires-module.js

import Ember from 'ember';

export default Ember.Component.extend({
  evenNumber: 2,
  currentSeniorHireActivePage: 1,
  actions: {
  	changeHireActivePage() {
      console.log('changeHireActivePage - newhires');
      this.evenNumber+=2;
      this.set('currentSeniorHireActivePage',
               this.evenNumber + 2);
    }
  }
});

components.paginated-carousel.js

import Ember from 'ember';

export default Ember.Component.extend({
  actions: {
  	moveToPage(moveTo, pageNum) {
    	moveTo(pageNum);
    }
  }
});

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}}
{{newhires-module}}
<br>
<br>

templates.components.carousel-paginator.hbs

<button {{action 'changeIndex'}}>Change index from paginator</button>
<span>index in paginator: {{activePage}}</span>

templates.components.hw-carousel.hbs

{{yield (action 'moveTo')}}
current page: {{currentPage}}

templates.components.newhires-module.hbs

<button {{action 'changeHireActivePage'}}>Change hire active page from module</button>
{{#paginated-carousel as |carousel|}}
  {{carousel-paginator hireActivePage=currentSeniorHireActivePage
      moveToPage=carousel.moveToPage}}
{{/paginated-carousel}}

templates.components.paginated-carousel.hbs

{{#hw-carousel as |moveTo|}}
      {{yield (hash
        moveToPage=(action 'moveToPage' moveTo)
      )}}
{{/hw-carousel}}

twiddle.json

{
  "version": "0.10.6",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "beta",
    "ember-data": "2.9.0",
    "ember-template-compiler": "beta",
    "ember-testing": "beta"
  },
  "addons": {}
}