import _ol_Map_ from '../src/ol/Map.js';
import _ol_View_ from '../src/ol/View.js';
import _ol_control_ from '../src/ol/control.js';
import ScaleLine from '../src/ol/control/ScaleLine.js';
import _ol_layer_Tile_ from '../src/ol/layer/Tile.js';
import _ol_source_OSM_ from '../src/ol/source/OSM.js';


var scaleLineControl = new ScaleLine();

var map = new _ol_Map_({
  controls: _ol_control_.defaults({
    attributionOptions: {
      collapsible: false
    }
  }).extend([
    scaleLineControl
  ]),
  layers: [
    new _ol_layer_Tile_({
      source: new _ol_source_OSM_()
    })
  ],
  target: 'map',
  view: new _ol_View_({
    center: [0, 0],
    zoom: 2
  })
});


var unitsSelect = document.getElementById('units');
function onChange() {
  scaleLineControl.setUnits(unitsSelect.value);
}
unitsSelect.addEventListener('change', onChange);
onChange();