diff options
Diffstat (limited to 'Xamarin.Forms.Core.iOS.UITests/Utilities/Gestures.cs')
| -rw-r--r-- | Xamarin.Forms.Core.iOS.UITests/Utilities/Gestures.cs | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/Xamarin.Forms.Core.iOS.UITests/Utilities/Gestures.cs b/Xamarin.Forms.Core.iOS.UITests/Utilities/Gestures.cs new file mode 100644 index 00000000..548ff06d --- /dev/null +++ b/Xamarin.Forms.Core.iOS.UITests/Utilities/Gestures.cs @@ -0,0 +1,114 @@ +using System; +using System.Dynamic; +using System.Linq; +using System.Security.Cryptography; + +using Xamarin.UITest; +using Xamarin.UITest.Android; +using Xamarin.UITest.iOS; +using Xamarin.UITest.Queries; + +namespace Xamarin.Forms.Core.UITests +{ + internal static class Gestures + { + public static bool ScrollForElement (this IApp app, string query, Drag drag, int maxSteps = 25) + { + int count = 0; + + int centerTolerance = 50; + + Func<AppQuery, AppQuery> elementQuery = q => q.Raw (query); + + // Visible elements + if (app.Query (elementQuery).Length > 1) { + throw new UITestQueryMultipleResultsException (query); + } + + // check to see if the element is visible already + if (app.Query (elementQuery).Length == 1) { + // centering an element whos CenterX is close to the bounding rectangle's center X can sometime register the swipe as a tap + float elementDistanceToDragCenter = Math.Abs (app.Query (elementQuery).First ().Rect.CenterY - drag.DragBounds.CenterY); + if (elementDistanceToDragCenter > centerTolerance) + app.CenterElementInView (elementQuery, drag.DragBounds, drag.DragDirection); + return true; + } + + // loop until element is seen + while (app.Query (elementQuery).Length == 0 && count < maxSteps) { + app.DragCoordinates (drag.XStart, drag.YStart, drag.XEnd, drag.YEnd); + count++; + } + + if (count != maxSteps) { + // centering an element whos CenterX is close to the bounding rectangle's center X can sometime register the swipe as a tap + float elementDistanceToDragCenter = Math.Abs (app.Query (elementQuery).First ().Rect.CenterY - drag.DragBounds.CenterY); + if (elementDistanceToDragCenter > centerTolerance) + app.CenterElementInView (elementQuery, drag.DragBounds, drag.DragDirection); + return true; + } + + count = 0; + drag.DragDirection = drag.OppositeDirection; + + while (app.Query (elementQuery).Length == 0 && count < maxSteps) { + app.DragCoordinates (drag.XStart, drag.YStart, drag.XEnd, drag.YEnd); + count++; + } + + if (count != maxSteps) { + app.CenterElementInView (elementQuery, drag.DragBounds, drag.DragDirection); + return true; + } + + return false; + } + + static void CenterElementInView (this IApp app, Func<AppQuery, AppQuery> element, AppRect containingView, Drag.Direction direction) + { + // TODO Implement horizontal centering + + if (direction == Drag.Direction.BottomToTop || direction == Drag.Direction.TopToBottom) { + + var elementBounds = app.Query (element).First ().Rect; + + bool elementCenterBelowContainerCenter = elementBounds.CenterY > containingView.CenterY; + bool elementCenterAboveContainerCenter = elementBounds.CenterY < containingView.CenterY; + + var displacementToCenter = Math.Abs (elementBounds.CenterY - containingView.CenterY) / 2; + + // avoid drag as touch + if (displacementToCenter < 50) + return; + + if (elementCenterBelowContainerCenter) { + + var drag = new Drag ( + containingView, + containingView.CenterX, containingView.CenterY + displacementToCenter, + containingView.CenterX, containingView.CenterY - displacementToCenter, + Drag.Direction.BottomToTop + ); + + app.DragCoordinates (drag.XStart, drag.YStart, drag.XEnd, drag.YEnd); + + } else if (elementCenterAboveContainerCenter) { + + var drag = new Drag ( + containingView, + containingView.CenterX, containingView.CenterY - displacementToCenter, + containingView.CenterX, containingView.CenterY + displacementToCenter, + Drag.Direction.TopToBottom + ); + + app.DragCoordinates (drag.XStart, drag.YStart, drag.XEnd, drag.YEnd); + } + } + } + + public static void Pan (this IApp app, Drag drag) + { + app.DragCoordinates (drag.XStart, drag.YStart, drag.XEnd, drag.YEnd); + } + } +}
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