text: require('../modes.js')
  iD.modes.AddArea = function(context) {
      var mode = {
          id: 'add-area',
          button: 'area',
          title: t('modes.add_area.title'),
          description: t('modes.add_area.description'),
          key: '3'
      };
  
      var behavior = iD.behavior.AddWay(context)
              .tail(t('modes.add_area.tail'))
              .on('start', start)
              .on('startFromWay', startFromWay)
              .on('startFromNode', startFromNode),
          defaultTags = {area: 'yes'};
  
      function start(loc) {
          var graph = context.graph(),
              node = iD.Node({loc: loc}),
              way = iD.Way({tags: defaultTags});
  
          context.perform(
              iD.actions.AddEntity(node),
              iD.actions.AddEntity(way),
              iD.actions.AddVertex(way.id, node.id),
              iD.actions.AddVertex(way.id, node.id));
  
          context.enter(iD.modes.DrawArea(context, way.id, graph));
      }
  
      function startFromWay(loc, edge) {
          var graph = context.graph(),
              node = iD.Node({loc: loc}),
              way = iD.Way({tags: defaultTags});
  
          context.perform(
              iD.actions.AddEntity(node),
              iD.actions.AddEntity(way),
              iD.actions.AddVertex(way.id, node.id),
              iD.actions.AddVertex(way.id, node.id),
              iD.actions.AddMidpoint({ loc: loc, edge: edge }, node));
  
          context.enter(iD.modes.DrawArea(context, way.id, graph));
      }
  
      function startFromNode(node) {
          var graph = context.graph(),
              way = iD.Way({tags: defaultTags});
  
          context.perform(
              iD.actions.AddEntity(way),
              iD.actions.AddVertex(way.id, node.id),
              iD.actions.AddVertex(way.id, node.id));
  
          context.enter(iD.modes.DrawArea(context, way.id, graph));
      }
  
      mode.enter = function() {
          context.install(behavior);
      };
  
      mode.exit = function() {
          context.uninstall(behavior);
      };
  
      return mode;
  };
  