Bloom.Browser.OnLoad C# (CSharp) Method

        protected override void OnLoad(EventArgs e)
        {
            Debug.Assert(!InvokeRequired);
            base.OnLoad(e);

            if(DesignMode)
            {
                this.BackColor=Color.DarkGray;
                return;
            }

            _browser = new GeckoWebBrowser();

            _browser.Parent = this;
            _browser.Dock = DockStyle.Fill;
            Controls.Add(_browser);
            _browser.NoDefaultContextMenu = true;
            _browser.ShowContextMenu += OnShowContextMenu;

            _browser.Navigating += _browser_Navigating;
            //NB: registering for domclicks seems to stop normal hyperlinking (which we don't
            //necessarily need).  When I comment this out, I get an error if the href had, for example,
            //"bloom" for the protocol.  We could probably install that as a protocol, rather than
            //using the click to just get a target and go from there, if we wanted.
            _browser.DomClick += OnBrowser_DomClick;

            _browser.DomKeyPress += OnDomKeyPress;
            _browserIsReadyToNavigate = true;

            UpdateDisplay();
            _browser.Navigated += CleanupAfterNavigation;//there's also a "document completed"
            _browser.DocumentCompleted += new EventHandler<GeckoDocumentCompletedEventArgs>(_browser_DocumentCompleted);

            _browser.ConsoleMessage += OnConsoleMessage;

            //Developers can turn this on when you're tracking something, but unfortunately the number of false positives
            //is extremely high. Even caught exceptions get reported here, e.g. libraries trying to figure out which
            //browser they are running in intentionally test for things that aren't there, and those get reported.
            //When we upgrate to Firefox 45, which has a totally different debugging system, we can see if maybe we
            //can turn this back on. Meanwhile, running in a browser is a good way to see real errors.

            //_browser.JavascriptError += OnJavascriptError;

            // This makes any zooming zoom everything, not just enlarge text.
            // May be obsolete, since I don't think we are using the sort of zooming it controls.
            // Instead we implement zoom ourselves in a more controlled way using transform: scale
            GeckoPreferences.User["browser.zoom.full"] = true;

            // in firefox 14, at least, there was a bug such that if you have more than one lang on
            // the page, all are check with English
            // until we get past that, it's just annoying
            GeckoPreferences.User["layout.spellcheckDefault"] = 0;

            _browser.FrameEventsPropagateToMainWindow = true; // we want clicks in iframes to propagate all the way up to C#

            RaiseGeckoReady();
        }