TodoMVC

adapters.application.js

import DS from 'ember-data';

export default DS.Adapter.extend({
  shouldReloadAll() {
    //silence ember-data deprecation
    return true;
  },
  findAll() {
    // rather then doing an ajax, just echo back the default data

    return [
      {
        id: '1',
        title: 'Go to http://ember-twiddle.com',
        isCompleted: true
      },
      {
        id: '2',
        title: 'Log in through your Github account',
        isCompleted: true
      },
      {
        id: '3',
        title: 'Develop amazing things',
        isCompleted: false
      }
    ];
  },

  createRecord(store, type, snapshot) {
    // rather then doing an ajax, just echo back the data that was created
    var record = snapshot.record;
    var json = record.toJSON();

    // assign a unique ID like the server would
    json.id = Date.now();

    // return a value or a promise
    return json;
  },

  updateRecord(store, type, snapshot) {
    // rather then doing an ajax, just echo back the data that was updated
    var record = snapshot.record;
    var json = record.toJSON();

    json.id = record.id;

    return json;
  },

  deleteRecord(store, type, snapshot) {
    var record = snapshot.record;

    return { id: record.id };
  }
});

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  state: 'all',
  queryParams: [
    'state'
  ],
});

application.route.js

import Ember from 'ember';

export default Ember.Route.extend({
  queryParams: {
    state: { refreshModel: true }
  },

  model(params) {
    return this.store.findAll('todo').then((todos) => {
      return {
        all: todos,
        filter: params.state
      };
    });
  }
});

application.template.hbs

{{todos-route todos=model.all
              filter=model.filter}}

components.edit-todo.component.js

import Ember from 'ember';

export default Ember.TextField.extend({
  didInsertElement() {
    this.$().focus();
    this.$().addClass('focus'); // headless testing is brittle
  }
});

components.todo-item.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName: 'li',
  classNameBindings: ['todo.isCompleted:completed', 'isEditing:editing'],

  init() {
    this._super(...arguments);
    this.set('isEditing', false);
  },

  actions: {
    editTodo() {
      this.set('isEditing', true);
    },

    removeTodo() {
      var todo = this.get('todo');

      todo.deleteRecord();
      todo.save();
    },

    save() {
      this.set('isEditing', false);
      this.get('todo').save();
    }
  },
});

components.todo-item.template.hbs

{{#if isEditing}}
  {{edit-todo class='edit' value=todo.title
                           focus-out='save'
                           insert-newline='save'}}
{{else}}
  {{input type='checkbox' checked=todo.isCompleted class='toggle'}}
  <label {{action 'editTodo' on='doubleClick'}}>{{todo.title}}</label>
  <button {{action 'removeTodo'}} class='destroy'></button>
{{/if}}

components.todos-list.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName: 'ul',
});

components.todos-list.template.hbs

{{#each todos as |todo|}}
  {{todo-item todo=todo}}
{{/each}}

components.todos-route.component.js

import Ember from 'ember';

var isEmpty = Ember.isEmpty;
var filterBy = Ember.computed.filterBy;
var computed = Ember.computed;
var service = Ember.inject.service;

export default Ember.Component.extend({
  store: service(),

  filtered: computed('[email protected]', 'filter', function() {
    var filter = this.get('filter');
    var all = this.get('todos');

    if (filter === 'all') { return all; }

    return all.filterBy('isCompleted', filter === 'completed');
  }),

  completed: filterBy('todos', 'isCompleted', true),
  active: filterBy('todos', 'isCompleted', false),

  inflection: computed('active.[]', function() {
    var active = this.get('active.length');
    return active === 1 ? 'item' : 'items';
  }).readOnly(),

  allAreDone: computed('[email protected]', {
    get() {
      return !isEmpty(this) && this.get('todos.length') === this.get('completed.length');
    },
    set(key, value) {
      // TODO: use action instead of a 2 way CP
      var todos = this.get('todos');
      todos.setEach('isCompleted', value);
      todos.invoke('save');
      return value;
    } 
  }),

  actions: {
    createTodo() {
      const store = this.get('store');

      // Get the todo title set by the "New Todo" text field
      var title = this.get('newTitle');

      if (title && !title.trim()) {
        this.set('newTitle', '');
        return;
      }

      // Create the new Todo model
      var todo = store.createRecord('todo', {
        title: title
      });

      // Clear the "New Todo" text field
      this.set('newTitle', '');

      // Save the new model
      todo.save();
    },

    clearCompleted() {
      var completed = this.get('completed');

      completed.toArray(). // clone the array, so it is not bound while we iterate over and delete.
        invoke('deleteRecord').
        invoke('save');
    }
  },
});

components.todos-route.template.hbs

<section class='todoapp'>
  <header id='header'>
    <h1>todos</h1>
    {{input type='text'
            class='new-todo'
            placeholder='What needs to be done?'
            value=newTitle
            enter='createTodo'}}
  </header>

  <section class='main'>
    {{todos-list todos=filtered class='todo-list'}}

    {{input type='checkbox'
            class='toggle-all'
            checked=allAreDone}}
  </section>

  <footer class='footer'>
    <span class='todo-count'>
      <strong>{{active.length}}</strong> {{inflection}} left
    </span>

    <ul class='filters'>
      <li> {{link-to 'All' 'index'       (query-params state='all')       activeClass='selected'}} </li>
      <li> {{link-to 'Active' 'index'    (query-params state='active')    activeClass='selected'}} </li>
      <li> {{link-to 'Completed' 'index' (query-params state='completed') activeClass='selected'}} </li>
    </ul>

    {{#if completed}}
      <button class='clear-completed' {{action 'clearCompleted'}}>
        Clear completed ({{completed.length}})
      </button>
    {{/if}}
  </footer>
</section>

<footer class='info'>
  <p>Double-click to edit a todo</p>
</footer>

models.todo.js

import DS from 'ember-data';

export default DS.Model.extend({
  title: DS.attr('string'),
  isCompleted: DS.attr('boolean', { defaultValue: false })
});

router.js

import Ember from 'ember';
var Router = Ember.Router.extend({
  location: 'none'
});

Router.map(function() {
});

export default Router;

styles.app.css

html,
body {
	margin: 0;
	padding: 0;
}

button {
	margin: 0;
	padding: 0;
	border: 0;
	background: none;
	font-size: 100%;
	vertical-align: baseline;
	font-family: inherit;
	font-weight: inherit;
	color: inherit;
	-webkit-appearance: none;
	appearance: none;
	-webkit-font-smoothing: antialiased;
	-moz-font-smoothing: antialiased;
	font-smoothing: antialiased;
}

body {
	font: 14px 'Helvetica Neue', Helvetica, Arial, sans-serif;
	line-height: 1.4em;
	background: #f5f5f5;
	color: #4d4d4d;
	min-width: 230px;
	max-width: 550px;
	margin: 0 auto;
	-webkit-font-smoothing: antialiased;
	-moz-font-smoothing: antialiased;
	font-smoothing: antialiased;
	font-weight: 300;
}

button,
input[type="checkbox"] {
	outline: none;
}

.hidden {
	display: none;
}

.todoapp {
	background: #fff;
	margin: 130px 0 40px 0;
	position: relative;
	box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.2),
	            0 25px 50px 0 rgba(0, 0, 0, 0.1);
}

.todoapp input::-webkit-input-placeholder {
	font-style: italic;
	font-weight: 300;
	color: #e6e6e6;
}

.todoapp input::-moz-placeholder {
	font-style: italic;
	font-weight: 300;
	color: #e6e6e6;
}

.todoapp input::input-placeholder {
	font-style: italic;
	font-weight: 300;
	color: #e6e6e6;
}

.todoapp h1 {
	position: absolute;
	top: -155px;
	width: 100%;
	font-size: 100px;
	font-weight: 100;
	text-align: center;
	color: rgba(175, 47, 47, 0.15);
	-webkit-text-rendering: optimizeLegibility;
	-moz-text-rendering: optimizeLegibility;
	text-rendering: optimizeLegibility;
}

.new-todo,
.edit {
	position: relative;
	margin: 0;
	width: 100%;
	font-size: 24px;
	font-family: inherit;
	font-weight: inherit;
	line-height: 1.4em;
	border: 0;
	outline: none;
	color: inherit;
	padding: 6px;
	border: 1px solid #999;
	box-shadow: inset 0 -1px 5px 0 rgba(0, 0, 0, 0.2);
	box-sizing: border-box;
	-webkit-font-smoothing: antialiased;
	-moz-font-smoothing: antialiased;
	font-smoothing: antialiased;
}

.new-todo {
	padding: 16px 16px 16px 60px;
	border: none;
	background: rgba(0, 0, 0, 0.003);
	box-shadow: inset 0 -2px 1px rgba(0,0,0,0.03);
}

.main {
	position: relative;
	z-index: 2;
	border-top: 1px solid #e6e6e6;
}

label[for='toggle-all'] {
	display: none;
}

.toggle-all {
	position: absolute;
	top: -55px;
	left: -12px;
	width: 60px;
	height: 34px;
	text-align: center;
	border: none; /* Mobile Safari */
}

.toggle-all:before {
	content: '❯';
	font-size: 22px;
	color: #e6e6e6;
	padding: 10px 27px 10px 27px;
}

.toggle-all:checked:before {
	color: #737373;
}

.todo-list {
	margin: 0;
	padding: 0;
	list-style: none;
}

.todo-list li {
	position: relative;
	font-size: 24px;
	border-bottom: 1px solid #ededed;
}

.todo-list li:last-child {
	border-bottom: none;
}

.todo-list li.editing {
	border-bottom: none;
	padding: 0;
}

.todo-list li.editing .edit {
	display: block;
	width: 506px;
	padding: 13px 17px 12px 17px;
	margin: 0 0 0 43px;
}

.todo-list li.editing .view {
	display: none;
}

.todo-list li .toggle {
	text-align: center;
	width: 40px;
	/* auto, since non-WebKit browsers doesn't support input styling */
	height: auto;
	position: absolute;
	top: 0;
	bottom: 0;
	margin: auto 0;
	border: none; /* Mobile Safari */
	-webkit-appearance: none;
	appearance: none;
}

.todo-list li .toggle:after {
	content: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="-10 -18 100 135"><circle cx="50" cy="50" r="50" fill="none" stroke="#ededed" stroke-width="3"/></svg>');
}

.todo-list li .toggle:checked:after {
	content: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="-10 -18 100 135"><circle cx="50" cy="50" r="50" fill="none" stroke="#bddad5" stroke-width="3"/><path fill="#5dc2af" d="M72 25L42 71 27 56l-4 4 20 20 34-52z"/></svg>');
}

.todo-list li label {
	white-space: pre;
	word-break: break-word;
	padding: 15px 60px 15px 15px;
	margin-left: 45px;
	display: block;
	line-height: 1.2;
	transition: color 0.4s;
}

.todo-list li.completed label {
	color: #d9d9d9;
	text-decoration: line-through;
}

.todo-list li .destroy {
	display: none;
	position: absolute;
	top: 0;
	right: 10px;
	bottom: 0;
	width: 40px;
	height: 40px;
	margin: auto 0;
	font-size: 30px;
	color: #cc9a9a;
	margin-bottom: 11px;
	transition: color 0.2s ease-out;
}

.todo-list li .destroy:hover {
	color: #af5b5e;
}

.todo-list li .destroy:after {
	content: '×';
}

.todo-list li:hover .destroy {
	display: block;
}

.todo-list li .edit {
	display: none;
}

.todo-list li.editing:last-child {
	margin-bottom: -1px;
}

.footer {
	color: #777;
	padding: 10px 15px;
	height: 20px;
	text-align: center;
	border-top: 1px solid #e6e6e6;
}

.footer:before {
	content: '';
	position: absolute;
	right: 0;
	bottom: 0;
	left: 0;
	height: 50px;
	overflow: hidden;
	box-shadow: 0 1px 1px rgba(0, 0, 0, 0.2),
	            0 8px 0 -3px #f6f6f6,
	            0 9px 1px -3px rgba(0, 0, 0, 0.2),
	            0 16px 0 -6px #f6f6f6,
	            0 17px 2px -6px rgba(0, 0, 0, 0.2);
}

.todo-count {
	float: left;
	text-align: left;
}

.todo-count strong {
	font-weight: 300;
}

.filters {
	margin: 0;
	padding: 0;
	list-style: none;
	position: absolute;
	right: 0;
	left: 0;
}

.filters li {
	display: inline;
}

.filters li a {
	color: inherit;
	margin: 3px;
	padding: 3px 7px;
	text-decoration: none;
	border: 1px solid transparent;
	border-radius: 3px;
}

.filters li a.selected,
.filters li a:hover {
	border-color: rgba(175, 47, 47, 0.1);
}

.filters li a.selected {
	border-color: rgba(175, 47, 47, 0.2);
}

.clear-completed,
html .clear-completed:active {
	float: right;
	position: relative;
	line-height: 20px;
	text-decoration: none;
	cursor: pointer;
	visibility: hidden;
	position: relative;
}

.clear-completed::after {
	visibility: visible;
	content: 'Clear completed';
	position: absolute;
	top: 0;
	right: 0;
	white-space: nowrap;
}

.clear-completed:hover::after {
	text-decoration: underline;
}

.info {
	margin: 65px auto 0;
	color: #bfbfbf;
	font-size: 10px;
	text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
	text-align: center;
}

.info p {
	line-height: 1;
}

.info a {
	color: inherit;
	text-decoration: none;
	font-weight: 400;
}

.info a:hover {
	text-decoration: underline;
}

/*
	Hack to remove background from Mobile Safari.
	Can't use it globally since it destroys checkboxes in Firefox
*/
@media screen and (-webkit-min-device-pixel-ratio:0) {
	.toggle-all,
	.todo-list li .toggle {
		background: none;
	}

	.todo-list li .toggle {
		height: 40px;
	}

	.toggle-all {
		-webkit-transform: rotate(90deg);
		transform: rotate(90deg);
		-webkit-appearance: none;
		appearance: none;
	}
}

@media (max-width: 430px) {
	.footer {
		height: 50px;
	}

	.filters {
		bottom: 10px;
	}
}

twiddle.json

{
  "version": "0.4.0",
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.5/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/1.13.5/ember-data.js"
  }
}