UI extensions

Ui extensions is a way to hijack the UIService so before we look for element x we do y. An example of this could be looking for dialogs, error message or loading bars.

Example when we always want to wait for a loading bar to disappear

    public class UiLoadingExtension : IUiExtension
    {
        // A flag to temporary disable this extension 
        private bool _isWaiting;
        private readonly With _loadingWith;

        private UiLoadingExtension()
        {
            _loadingWith = With.ResourceId("loadingId");
        }

        public bool CheckNodes(IList<Node> nodes, IAndroidDevice device)
        {
            if (nodes.Any(_loadingWith.NodeSearche) && !_isWaiting)
            {
                WaitForLoading(nodes, device);
                // Reset the wait timer for the actual object we're looking for. 
                return true;
            }
            return false; 
        }

        private void WaitForLoading(IList<Node> nodes, IAndroidDevice device)
        {
            _isWaiting= true;
            var loading = device.Ui.CreateUiObject(_loadingWith);
            loading.IsHidden(180);
            _isWaiting= false;
        }
    }

And then you add this to your device ui service

var device = new AndroidDevice(new DeviceConfiguration());
device.Ui.Extensions.Add(new UiLoadingExtension());