/// <summary>
/// </summary>
internal StylusPlugInCollection InvokeStylusPluginCollectionForMouse(RawStylusInputReport inputReport, IInputElement directlyOver, StylusPlugInCollection currentPlugInCollection)
{
StylusPlugInCollection newPlugInCollection = null;
// Find new target plugin collection
if (directlyOver != null)
{
UIElement uiElement = InputElement.GetContainingUIElement(directlyOver as DependencyObject) as UIElement;
if (uiElement != null)
{
newPlugInCollection = FindPlugInCollection(uiElement);
}
}
// Fire Leave event to old pluginCollection if we need to.
if (currentPlugInCollection != null && currentPlugInCollection != newPlugInCollection)
{
// NOTE: input report points for mouse are in avalon measured units and not device!
RawStylusInput tempRawStylusInput = new RawStylusInput(inputReport, currentPlugInCollection.ViewToElement, currentPlugInCollection);
currentPlugInCollection.FireEnterLeave(false, tempRawStylusInput, true);
// Indicate we've used a stylus plugin
StylusLogic.CurrentStylusLogic.Statistics.FeaturesUsed |= Tracing.StylusTraceLogger.FeatureFlags.StylusPluginsUsed;
}
if (newPlugInCollection != null)
{
// NOTE: input report points for mouse are in avalon measured units and not device!
RawStylusInput rawStylusInput = new RawStylusInput(inputReport, newPlugInCollection.ViewToElement, newPlugInCollection);
inputReport.RawStylusInput = rawStylusInput;
if (newPlugInCollection != currentPlugInCollection)
{
newPlugInCollection.FireEnterLeave(true, rawStylusInput, true);
}
// (Comment not applicable until RTI back in) We are on the RTI thread, just call directly.
newPlugInCollection.FireRawStylusInput(rawStylusInput);
// Indicate we've used a stylus plugin
StylusLogic.CurrentStylusLogic.Statistics.FeaturesUsed |= Tracing.StylusTraceLogger.FeatureFlags.StylusPluginsUsed;
// Fire custom data events (always confirmed for mouse)
foreach (RawStylusInputCustomData customData in rawStylusInput.CustomDataList)
{
customData.Owner.FireCustomData(customData.Data, inputReport.Actions, true);
}
}
return(newPlugInCollection);
}
internal static DependencyObject GetUIParent(DependencyObject child, bool continuePastVisualTree)
{
DependencyObject parent = null;
DependencyObject myParent = null;
// Try to find a UIElement parent in the visual ancestry.
if (child is Visual)
{
myParent = ((Visual)child).InternalVisualParent;
}
else
{
myParent = ((Visual3D)child).InternalVisualParent;
}
parent = InputElement.GetContainingUIElement(myParent) as DependencyObject;
// If there was no UIElement parent in the visual ancestry,
// check along the logical branch.
if (parent == null && continuePastVisualTree)
{
UIElement childAsUIElement = child as UIElement;
if (childAsUIElement != null)
{
parent = InputElement.GetContainingInputElement(childAsUIElement.GetUIParentCore()) as DependencyObject;
}
else
{
UIElement3D childAsUIElement3D = child as UIElement3D;
if (childAsUIElement3D != null)
{
parent = InputElement.GetContainingInputElement(childAsUIElement3D.GetUIParentCore()) as DependencyObject;
}
}
}
return(parent);
}
internal void ChangeStylusCapture(IInputElement stylusCapture, CaptureMode captureMode, int timestamp)
{
// if the capture changed...
if (stylusCapture != _stylusCapture)
{
// Actually change the capture first. Invalidate the properties,
// and then send the events.
IInputElement oldStylusCapture = _stylusCapture;
_stylusCapture = stylusCapture;
_captureMode = captureMode;
// We also need to figure out ahead of time if any plugincollections on this captured element (or a parent)
// for the penthread hittesting code.
_stylusCapturePlugInCollection = null;
if (stylusCapture != null)
{
UIElement uiElement = InputElement.GetContainingUIElement(stylusCapture as DependencyObject) as UIElement;
if (uiElement != null)
{
PresentationSource source = PresentationSource.CriticalFromVisual(uiElement as Visual);
if (source != null)
{
PointerStylusPlugInManager manager;
if (_pointerLogic.PlugInManagers.TryGetValue(source, out manager))
{
_stylusCapturePlugInCollection = manager.FindPlugInCollection(uiElement);
}
}
}
}
_pointerLogic.UpdateStylusCapture(this, oldStylusCapture, _stylusCapture, timestamp);
// Send the LostStylusCapture and GotStylusCapture events.
if (oldStylusCapture != null)
{
StylusEventArgs lostCapture = new StylusEventArgs(StylusDevice, timestamp);
lostCapture.RoutedEvent = Stylus.LostStylusCaptureEvent;
lostCapture.Source = oldStylusCapture;
InputManager.UnsecureCurrent.ProcessInput(lostCapture);
}
if (_stylusCapture != null)
{
StylusEventArgs gotCapture = new StylusEventArgs(StylusDevice, timestamp);
gotCapture.RoutedEvent = Stylus.GotStylusCaptureEvent;
gotCapture.Source = _stylusCapture;
InputManager.UnsecureCurrent.ProcessInput(gotCapture);
}
// Now update the stylus over state (only if this is the current stylus and
// it is inrange).
if (_pointerLogic.CurrentStylusDevice == this || InRange)
{
if (_stylusCapture != null)
{
IInputElement inputElementHit = _stylusCapture;
// See if we need to update over for subtree mode.
if (CapturedMode == CaptureMode.SubTree && _inputSource != null && _inputSource.Value != null)
{
Point pt = _pointerLogic.DeviceUnitsFromMeasureUnits(GetPosition(null));
inputElementHit = FindTarget(_inputSource.Value, pt);
}
ChangeStylusOver(inputElementHit);
}
else
{
// Only try to update over if we have a valid input source.
if (_inputSource != null && _inputSource.Value != null)
{
Point pt = GetPosition(null); // relative to window (root element)
pt = _pointerLogic.DeviceUnitsFromMeasureUnits(pt); // change back to device coords.
IInputElement currentOver = Input.StylusDevice.GlobalHitTest(_inputSource.Value, pt);
ChangeStylusOver(currentOver);
}
}
}
// For Mouse StylusDevice we want to make sure Mouse capture is set up the same.
if (Mouse.Captured != _stylusCapture || Mouse.CapturedMode != _captureMode)
{
Mouse.Capture(_stylusCapture, _captureMode);
}
}
}
/// <summary>
/// Verifies that the call to the stylus plugin on the RTI thread was valid against the current visual tree.
/// If this verification fails, we will rebuild and resend the raw input and custom data in order to inform
/// the target collections of the error and fix it.
/// </summary>
/// <remarks>
/// This is a remnant of verifying hits to the collections based on the UI thread calling this
/// after the real time input thread has previously called a collection. This is due to the RTI thread
/// not being 100% synchronous with the visual tree in terms of hitting the collections. This is sort of
/// redundant right now, but needs to be here when we re-implement the RTI.
/// </remarks>
internal void VerifyStylusPlugInCollectionTarget(RawStylusInputReport rawStylusInputReport)
{
switch (rawStylusInputReport.Actions)
{
case RawStylusActions.Down:
case RawStylusActions.Move:
case RawStylusActions.Up:
break;
default:
return; // do nothing if not Down, Move or Up.
}
PointerLogic pointerLogic = StylusLogic.GetCurrentStylusLogicAs <PointerLogic>();
RawStylusInput originalRSI = rawStylusInputReport.RawStylusInput;
// See if we have a plugin for the target of this input.
StylusPlugInCollection targetPIC = null;
StylusPlugInCollection targetRtiPIC = (originalRSI != null) ? originalRSI.Target : null;
bool updateEventPoints = false;
// Make sure we use UIElement for target if non NULL and hit ContentElement.
UIElement newTarget = InputElement.GetContainingUIElement(rawStylusInputReport.StylusDevice.DirectlyOver as DependencyObject) as UIElement;
if (newTarget != null)
{
targetPIC = FindPlugInCollection(newTarget);
}
// Make sure any lock() calls do not reenter on us.
using (Dispatcher.CurrentDispatcher.DisableProcessing())
{
// See if we hit the wrong PlugInCollection on the pen thread and clean things up if we did.
if (targetRtiPIC != null && targetRtiPIC != targetPIC && originalRSI != null)
{
// Fire custom data not confirmed events for both pre and post since bad target...
foreach (RawStylusInputCustomData customData in originalRSI.CustomDataList)
{
customData.Owner.FireCustomData(customData.Data, rawStylusInputReport.Actions, false);
}
updateEventPoints = originalRSI.StylusPointsModified;
// Clear RawStylusInput data.
rawStylusInputReport.RawStylusInput = null;
}
// See if we need to build up an RSI to send to the plugincollection (due to a mistarget).
bool sendRawStylusInput = false;
if (targetPIC != null && rawStylusInputReport.RawStylusInput == null)
{
// NOTE: (This applies when RTI is back in) Info will not change (it gets rebuilt instead so keeping ref is fine)
// The transformTabletToView matrix and plugincollection rects though can change based
// off of layout events which is why we need to lock this.
GeneralTransformGroup transformTabletToView = new GeneralTransformGroup();
transformTabletToView.Children.Add(rawStylusInputReport.StylusDevice.As <PointerStylusDevice>().GetTabletToElementTransform(null)); // this gives matrix in measured units (not device)
transformTabletToView.Children.Add(targetPIC.ViewToElement); // Make it relative to the element.
transformTabletToView.Freeze(); // Must be frozen for multi-threaded access.
RawStylusInput rawStylusInput = new RawStylusInput(rawStylusInputReport, transformTabletToView, targetPIC);
rawStylusInputReport.RawStylusInput = rawStylusInput;
sendRawStylusInput = true;
}
PointerStylusDevice stylusDevice = rawStylusInputReport.StylusDevice.As <PointerStylusDevice>();
// Now fire the confirmed enter/leave events as necessary.
StylusPlugInCollection currentTarget = stylusDevice.CurrentVerifiedTarget;
if (targetPIC != currentTarget)
{
if (currentTarget != null)
{
// Fire leave event. If we never had a plugin for this event then create a temp one.
if (originalRSI == null)
{
GeneralTransformGroup transformTabletToView = new GeneralTransformGroup();
transformTabletToView.Children.Add(stylusDevice.GetTabletToElementTransform(null)); // this gives matrix in measured units (not device)
transformTabletToView.Children.Add(currentTarget.ViewToElement); // Make it relative to the element.
transformTabletToView.Freeze(); // Must be frozen for multi-threaded access.
originalRSI = new RawStylusInput(rawStylusInputReport, transformTabletToView, currentTarget);
}
currentTarget.FireEnterLeave(false, originalRSI, true);
}
if (targetPIC != null)
{
// Fire Enter event
targetPIC.FireEnterLeave(true, rawStylusInputReport.RawStylusInput, true);
// Indicate we've used a stylus plugin
pointerLogic.Statistics.FeaturesUsed |= Tracing.StylusTraceLogger.FeatureFlags.StylusPluginsUsed;
}
// Update the verified target.
stylusDevice.CurrentVerifiedTarget = targetPIC;
}
// Now fire RawStylusInput if needed to the right plugincollection.
if (sendRawStylusInput)
{
// We are on the pen thread, just call directly.
targetPIC.FireRawStylusInput(rawStylusInputReport.RawStylusInput);
updateEventPoints = (updateEventPoints || rawStylusInputReport.RawStylusInput.StylusPointsModified);
// Indicate we've used a stylus plugin
pointerLogic.Statistics.FeaturesUsed |= Tracing.StylusTraceLogger.FeatureFlags.StylusPluginsUsed;
}
// Now fire PrePreviewCustomData events.
if (targetPIC != null)
{
// Send custom data pre event
foreach (RawStylusInputCustomData customData in rawStylusInputReport.RawStylusInput.CustomDataList)
{
customData.Owner.FireCustomData(customData.Data, rawStylusInputReport.Actions, true);
}
}
// VerifyRawTarget might resend to correct plugins or may have hit the wrong plugincollection. The StylusPackets
// may be overriden in those plugins so we need to call UpdateEventStylusPoints to update things.
if (updateEventPoints)
{
rawStylusInputReport.StylusDevice.As <PointerStylusDevice>().UpdateEventStylusPoints(rawStylusInputReport, true);
}
}
}
