New Twiddle

components.expandable-table.js

import Ember from 'ember';
import Table from 'ember-light-table';

const { computed, Component, get, set } = Ember;

export default Component.extend({
  init() {
    this._super(...arguments);
    
    set(this, 'table', new Table(get(this, 'columns'), get(this, 'model')));
    Ember.getOwner(this).lookup("component:light-table/columns/base").constructor.prototype.dragOver = function(e) {
        this._super(...arguments);

        if (this.get('isDropTarget')) {
          e.preventDefault();

          if (!this.get('isDragTarget')) {
            this.set('isDragTarget', !this.$().hasClass('is-dragging'));
          }
        }
      }
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  columns: [{
    label: 'foo',
    resizable: true,
    draggable: true,
    valuePath: 'foo',
    width: '100px'
  }, {
    label: 'bar',
    resizable: true,
    draggable: true,
    valuePath: 'bar',
    width: '100px'
  }, {
    label: 'baz',
    resizable: true,
    draggable: true,
    valuePath: 'baz',
    width: '100px'
  }, {
    label: 'other',
    resizable: true,
    draggable: true,
    valuePath: 'baz',
    width: '100px'
  }, {
    label: 'new',
    resizable: true,
    draggable: true,
    valuePath: 'baz',
    width: '100px'
  }, {    
    label: 'address',
    resizable: true,
    draggable: true,
    valuePath: 'address'    
  }],
  model: [
    {foo: 123, bar: 321, baz:"test", address: "000 Balistreri Centers Suite 27" },
    {foo: 123, bar: 321, baz:"test", address: "000 Balistreri Centers Suite 272" },
    {foo: 123, bar: 321, baz:"test", address: "000 Balistreri Centers Suite 272" },
    {foo: 123, bar: 321, baz:"test", address: "000 Balistreri Centers Suite 272" },
    {foo: 123, bar: 321, baz:"test", address: "000 Balistreri Centers Suite 272" },
    {foo: 123, bar: 321, baz:"test", address: "000 Balistreri Centers Suite 272" }
  ]
});

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

.lt-column {
  font-weight: 700;
  padding: 10px 8px;
  height: 43.5px;
  border-bottom: 2px solid #111;
  border-right: 1px solid #111;
}

.lt-column.is-drag-target::after {
  position: absolute;
  top: 0;
  background-color: red;
  content: '';
  width: 2px;
  height: 100%;
  z-index: 2;
}

.lt-column.drag-right::after {
  right: -1px;
}

.lt-column.drag-left::after {
  left: -1px;
}

.lt-cell {
  position: relative;
  padding: 10px 8px;
  color: #222;
  border-right: 1px solid #111;
  height: 43.5px;
}

templates.application.hbs

{{expandable-table model=model columns=columns}}

templates.components.expandable-table.hbs

{{#light-table table height='300px' as |t|}}
  {{t.head
    fixed=true}}

  {{#t.body
    canSelect=false
    multiRowExpansion=false
    as |body|}}
  {{/t.body}}
{{/light-table}}

twiddle.json

{
  "version": "0.11.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0"
  },
  "addons": {
    "ember-light-table": "1.8.6"
  }
}