A class to handle the simplest UI implementation
function CliView(cli, env) {
    cli.cliView = this;
    this.cli = cli;
    this.doc = document;
    this.win = dom.getParentWindow(this.doc);
    this.env = env;

    // TODO: we should have a better way to specify command lines???
    this.element = this.doc.getElementById('cockpitInput');
    if (!this.element) {
        // console.log('No element with an id of cockpit. Bailing on cli');
        return;
    }

    this.settings = env.settings;
    this.hintDirection = this.settings.getSetting('hintDirection');
    this.outputDirection = this.settings.getSetting('outputDirection');
    this.outputHeight = this.settings.getSetting('outputHeight');

    // If the requisition tells us something has changed, we use this to know
    // if we should ignore it
    this.isUpdating = false;

    this.createElements();
    this.update();
}