js__atom__plugin_tutorial/lib/orderthings.js

'use babel';

import { CompositeDisposable } from 'atom';

export default {

  subscriptions: null,

  activate() {
    // Events subscribed to in atom's system can be easily cleaned up with a CompositeDisposable
    this.subscriptions = new CompositeDisposable();

    // Register command that toggles this view
    this.subscriptions.add(atom.commands.add('atom-workspace', {
      'orderthings:fetch': () => this.fetch()
    }));
  },

  deactivate() {
    this.subscriptions.dispose();
  },

  fetch() {
    let editor;
    if (editor = atom.workspace.getActiveTextEditor()) {
      let selection = editor.getSelectedText();
      selection = selection.split('').reverse().join('');
      editor.insertText(selection);
    }
  }
};