public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
var args = inputEventArgs as KeyEventArgs;
if ((args == null) || !IsDefinedKey(args.Key))
{
return false;
}
Debug.WriteLine("Modifiers: " + Keyboard.Modifiers);
if (IsTooLongFromLastKey() || IsWrongModifiers() || IsWrongKey(args.Key))
{
currentKeyIndex = 0;
return false;
}
++currentKeyIndex;
if (IsMatchingContinued())
{
lastPress = DateTime.Now;
inputEventArgs.Handled = true;
return false;
}
currentKeyIndex = 0;
Debug.WriteLine("Match completed!");
return true;
}
public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
if (this._index >= this._gestures.Count) this._index = 0;
KeyEventArgs e = inputEventArgs as KeyEventArgs;
if (e == null || IsIgnorableKey(e.Key, e.KeyboardDevice.Modifiers))
{
return false;
}
if (this._index > 0 && (DateTime.Now - this._lastKeyPress) > _keyPressInterval)
{
this._index = 0;
}
if (this._gestures[this._index].Matches(targetElement, inputEventArgs))
{
this._lastKeyPress = DateTime.Now;
this._index++;
inputEventArgs.Handled = true;
return (this._index == this._gestures.Count);
}
else
{
this._index = 0;
return false;
}
}
private void Button_PreviewCSEDown(object sender, InputEventArgs e)
{
items.IndexOf(files[0]);
MainLibraryStack.SelectedIndex = items.IndexOf(files[0]);
//items.Remove(files[1]);
//items.Insert(0, files[1]);
}
protected override bool IsDeviceValid(bool? wasValid, InputEventArgs args)
{
var motionDevice = args.Device as MotionTrackingDevice;
if (motionDevice != null)
motionDevice.ShouldPromoteToTouch = true;
return true;
}
protected override void OnInput(object sender, InputEventArgs e)
{
if (this._gestureStarted)
{
base.OnInput(sender, e);
}
}
public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
var args = inputEventArgs as KeyEventArgs;
// Don't execute input binding in case focus is on a textbox
if ((inputEventArgs.Device.Target is TextBoxBase || inputEventArgs.Device.Target is WebBrowser)
&& !(modifers == ModifierKeys.Control || modifers == ModifierKeys.Alt))
return false;
if (args == null)
return false;
bool match;
if (useModifiers)
match = args.Key == key && args.KeyboardDevice.Modifiers == modifers;
else
{
match = (args.Key == key && args.KeyboardDevice.Modifiers == ModifierKeys.None);
// To not interfere with multiple key gestures
if (previous == Key.G || previous == Key.N || previous == Key.A)
match = false;
}
previous = args.Key;
return match;
}
///
/// When overridden in a derived class, determines whether the specified matches the input associated with the specified object.
///
/// The target of the command.
/// The input event data to compare this gesture to.
///
/// true if the gesture matches the input; otherwise, false.
///
public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
KeyEventArgs args = inputEventArgs as KeyEventArgs;
if (args != null)
return (Key == args.Key);
else
return false;
}
private void LeftSlideClick(object sender, InputEventArgs e)
{
imageIndex--;
if (imageIndex < 1) {
imageIndex = 8;
}
SlideShow(imageIndex);
timer.Interval = new TimeSpan(0, 0, 4);
}
public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
var action = GetExtendedMouseAction(inputEventArgs);
if (action != null && extendedMouseAction == action.Value)
{
return Modifiers == Keyboard.Modifiers;
}
return base.Matches(targetElement, inputEventArgs);
}
private void RightSlideClick(object sender, InputEventArgs e)
{
imageIndex++;
if (imageIndex > 8) {
imageIndex = 1;
}
SlideShow(imageIndex);
timer.Interval = new TimeSpan(0, 0, 4);
}
public StagingAreaInputItem PushInput(InputEventArgs input,
StagingAreaInputItem promote) // Note: this should be a bool, and always use the InputItem available on these args.
{
if(!_allowAccessToStagingArea)
{
throw new InvalidOperationException(SR.Get(SRID.NotAllowedToAccessStagingArea));
}
return this.UnsecureInputManager.PushInput(input, promote);
}
private void LayoutRoot_TouchDown(object sender, InputEventArgs e)
{
var yi = DataContext as YearItem;
if (yi == null)
return;
yi.Orientation = e.Device.GetOrientation(null) + 90;
yi.Position = e.Device.GetPosition(null);
yi.Position.X -= 100;
yi.Position.Y -= 50;
(DataContext as YearItem).ShowText = true;
}
public void badgeDoubleTap(object sender, InputEventArgs e)
{
RaiseEvent(new RoutedEventArgs(RequestLargeViewEvent));
if(e!=null)
e.Handled = true;
//var ap = DataContext as ArgPoint;
//var id = ap.Id;
//var zoomedAp = DbCtx.Get().ArgPoint.FirstOrDefault(ap0 => ap0.Id == id);
//var zoom = new ZoomWindow(zoomedAp);
//zoom.ShowDialog();
}
public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
if (m_hackMode)
{
KeyEventArgs args = inputEventArgs as KeyEventArgs;
return args != null && Keyboard.Modifiers == ModifierKeys.None && this.Key == args.Key;
}
else
{
return base.Matches(targetElement, inputEventArgs);
}
}
public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
// Don't execute input binding in case focus is on a textbox
if ((inputEventArgs.Device.Target is TextBoxBase || inputEventArgs.Device.Target is WebBrowser)
&& !(modifiers == ModifierKeys.Control || modifiers == ModifierKeys.Alt))
return false;
var args = inputEventArgs as KeyEventArgs;
if ((args == null) || !IsDefinedKey(args.Key))
{
return false;
}
if (_currentKeyIndex != 0 && ((DateTime.Now - _lastKeyPress) > _maximumDelayBetweenKeyPresses))
{
//took too long to press next key so reset
_currentKeyIndex = 0;
return false;
}
//the modifier only needs to be held down for the first keystroke, but you could also require that the modifier be held down for every keystroke
if (_currentKeyIndex == 0 && Modifiers != Keyboard.Modifiers)
{
//wrong modifiers
_currentKeyIndex = 0;
return false;
}
if (_keys[_currentKeyIndex] != args.Key)
{
//wrong key
_currentKeyIndex = 0;
return false;
}
++_currentKeyIndex;
if (_currentKeyIndex != _keys.Count)
{
//still matching
_lastKeyPress = DateTime.Now;
inputEventArgs.Handled = true;
return false;
}
//match complete
_currentKeyIndex = 0;
return true;
}
/// <summary>
/// On a TouchDown event check whether the MediaElement is
/// playing or paused and respond by performing the inverse.
/// </summary>
void Media_TouchDown(object sender, InputEventArgs e)
{
if (paused)
{
BeginStoryboard(Resources["Play"] as Storyboard);
Media.Play();
paused = false;
}
else
{
BeginStoryboard(Resources["Pause"] as Storyboard);
Media.Pause();
paused = true;
}
}
private static ExtendedMouseAction? GetExtendedMouseAction(InputEventArgs inputEventArgs)
{
var mouseButtonEventArgs = inputEventArgs as MouseButtonEventArgs;
if (mouseButtonEventArgs != null)
{
switch (mouseButtonEventArgs.ChangedButton)
{
case MouseButton.XButton1:
return ExtendedMouseAction.XButton1Click;
case MouseButton.XButton2:
return ExtendedMouseAction.XButton2Click;
}
}
return null;
}
protected override bool IsDeviceValid(bool? wasValid, InputEventArgs args)
{
var motionDevice = args.Device as MotionTrackingDevice;
if (motionDevice == null)
return NotifyTransition(wasValid, motionDevice, true);
if (motionDevice.Session == null)
return NotifyTransition(wasValid, motionDevice, false);
Vector3D vector = motionDevice.Session.Position - motionDevice.Session.ShoulderPosition;
if (Math.Abs(vector.Z) > MinimumDistance)
return NotifyTransition(wasValid, motionDevice, true);
return NotifyTransition(wasValid, motionDevice, false);
}
public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
if (inputEventArgs is MouseButtonEventArgs)
{
MouseButtonEventArgs args = (MouseButtonEventArgs)inputEventArgs;
switch (ExtraMouseAction)
{
case ExtraMouseAction.Back :
return args.ChangedButton == MouseButton.XButton1;
case ExtraMouseAction.Next :
return args.ChangedButton == MouseButton.XButton2;
}
}
return false;
}
public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
var args = inputEventArgs as KeyEventArgs;
//Console.WriteLine(string.Format("{1} + {0}",args.Key, args.KeyboardDevice.Modifiers));
if ((args == null) || !IsDefinedKey(args.Key))
{
return false;
}
if (_currentKeyIndex != 0 && ((DateTime.Now - _lastKeyPress) > _maximumDelayBetweenKeyPresses))
{
//took too long to press next key so reset
_currentKeyIndex = 0;
return false;
}
//the modifier only needs to be held down for the first keystroke, but you could also require that the modifier be held down for every keystroke
if (_currentKeyIndex == 0 && Modifiers != Keyboard.Modifiers)
{
//wrong modifiers
_currentKeyIndex = 0;
return false;
}
if (_keys[_currentKeyIndex] != args.Key)
{
//wrong key
_currentKeyIndex = 0;
return false;
}
++_currentKeyIndex;
if (_currentKeyIndex != _keys.Count)
{
//still matching
_lastKeyPress = DateTime.Now;
inputEventArgs.Handled = true;
return false;
}
//match complete
_currentKeyIndex = 0;
return true;
}
public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
if (!base.Matches(targetElement, inputEventArgs)) return false;
if (!(inputEventArgs is MouseWheelEventArgs)) return false;
var args = (MouseWheelEventArgs)inputEventArgs;
switch (Direction)
{
case WheelDirection.None:
return args.Delta == 0;
case WheelDirection.Up:
return args.Delta > 0;
case WheelDirection.Down:
return args.Delta < 0;
default:
return false;
}
}
public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
if (base.Matches(targetElement, inputEventArgs))
{
MouseWheelEventArgs wheelArgs = inputEventArgs as MouseWheelEventArgs;
if (wheelArgs != null)
{
if (MouseWheelAction == MouseWheelAction.AllMovement
|| (MouseWheelAction == MouseWheelAction.WheelDown && wheelArgs.Delta < 0)
|| MouseWheelAction == MouseWheelAction.WheelUp && wheelArgs.Delta > 0)
{
return true;
}
}
}
return false;
}
public override bool Matches(object targetElement, InputEventArgs inputEventArgs)
{
var device = inputEventArgs.Device as MouseDevice;
if (device != null)
{
switch (_mouseButton)
{
case MouseButton.XButton1:
if (device.XButton1 == MouseButtonState.Pressed) return true;
break;
case MouseButton.XButton2:
if (device.XButton2 == MouseButtonState.Pressed) return true;
break;
}
}
return false;
}
// For performace reasons, we try to reuse these event args.
// Allow an existing item to be promoted by keeping the existing dictionary.
internal void Reset(InputEventArgs input, StagingAreaInputItem promote)
{
_input = input;
if(promote != null && promote._dictionary != null)
{
//
_dictionary = (Hashtable) promote._dictionary.Clone();
}
else
{
if(_dictionary != null)
{
_dictionary.Clear();
}
else
{
_dictionary = new Hashtable();
}
}
}
public void Click(object sender, InputEventArgs e)
{
aTimer.Stop();
aTimer.Start();
numConseqClicks++;
Console.WriteLine("click {0}",numConseqClicks);
if (numConseqClicks == 2)
{
if (_onDoubleClick != null)
{
_onDoubleClick(sender, e);
Console.WriteLine("calling 2 tap");
}
}
else if (numConseqClicks == 3)
{
if (_onTripleClick != null)
_onTripleClick(sender, e);
}
}
protected override bool IsDeviceValid(bool? wasValid, InputEventArgs args)
{
var motionDevice = args.Device as MotionTrackingDevice;
if (motionDevice == null)
return true;
if (motionDevice.Session == null)
return false;
var element = args.OriginalSource as UIElement;
if (element == null)
return false;
var svi = VisualUtility.FindVisualParent<ScatterViewItem>(element);
if (svi == null || !svi.IsContainerActive)
return false;
motionDevice.ShouldPromoteToTouch = true;
return true;
}
private void HandleLeftButtonDown(InputEventArgs e) {
if (e == null) {
throw new ArgumentNullException(nameof(e));
}
var clickCount = GetClickCount(e);
var modifiers = (Keyboard.Modifiers & ModifierKeys.Shift) | (Keyboard.Modifiers & ModifierKeys.Control);
switch (clickCount) {
case 1:
e.Handled = HandleSingleClick(e, modifiers);
break;
case 2:
e.Handled = HandleDoubleClick(e, modifiers);
break;
case 3:
// Disable triple click
e.Handled = true;
break;
default:
e.Handled = false;
break;
}
}
internal override void OnInput(InputEventArgs e)
{
// Text input will start an edit
if (e is TextCompositionEventArgs)
{
BeginEdit(e);
}
}
public bool ProcessInput(InputEventArgs input)
{
return(default(bool));
}
public abstract bool Matches(Object targetElement, InputEventArgs inputEventArgs);
/// <summary>
/// Scans input and command bindings for matching gestures and executes the appropriate command
/// </summary>
/// <remarks>
/// Scans for command to execute in the following order:
/// - input bindings associated with the targetElement instance
/// - input bindings associated with the targetElement class
/// - command bindings associated with the targetElement instance
/// - command bindings associated with the targetElement class
/// </remarks>
/// <param name="targetElement">UIElement/ContentElement to be scanned for input and command bindings</param>
/// <param name="inputEventArgs">InputEventArgs to be matched against for gestures</param>
internal static void TranslateInput(IInputElement targetElement, InputEventArgs inputEventArgs)
{
if ((targetElement == null) || (inputEventArgs == null))
{
return;
}
ICommand command = null;
IInputElement target = null;
object parameter = null;
// Determine UIElement/ContentElement/Neither type
DependencyObject targetElementAsDO = targetElement as DependencyObject;
bool isUIElement = InputElement.IsUIElement(targetElementAsDO);
bool isContentElement = !isUIElement && InputElement.IsContentElement(targetElementAsDO);
bool isUIElement3D = !isUIElement && !isContentElement && InputElement.IsUIElement3D(targetElementAsDO);
// Step 1: Check local input bindings
InputBindingCollection localInputBindings = null;
if (isUIElement)
{
localInputBindings = ((UIElement)targetElement).InputBindingsInternal;
}
else if (isContentElement)
{
localInputBindings = ((ContentElement)targetElement).InputBindingsInternal;
}
else if (isUIElement3D)
{
localInputBindings = ((UIElement3D)targetElement).InputBindingsInternal;
}
if (localInputBindings != null)
{
InputBinding inputBinding = localInputBindings.FindMatch(targetElement, inputEventArgs);
if (inputBinding != null)
{
command = inputBinding.Command;
target = inputBinding.CommandTarget;
parameter = inputBinding.CommandParameter;
}
}
// Step 2: If no command, check class input bindings
if (command == null)
{
lock (_classInputBindings.SyncRoot)
{
Type classType = targetElement.GetType();
while (classType != null)
{
InputBindingCollection classInputBindings = _classInputBindings[classType] as InputBindingCollection;
if (classInputBindings != null)
{
InputBinding inputBinding = classInputBindings.FindMatch(targetElement, inputEventArgs);
if (inputBinding != null)
{
command = inputBinding.Command;
target = inputBinding.CommandTarget;
parameter = inputBinding.CommandParameter;
break;
}
}
classType = classType.BaseType;
}
}
}
// Step 3: If no command, check local command bindings
if (command == null)
{
// Check for the instance level ones Next
CommandBindingCollection localCommandBindings = null;
if (isUIElement)
{
localCommandBindings = ((UIElement)targetElement).CommandBindingsInternal;
}
else if (isContentElement)
{
localCommandBindings = ((ContentElement)targetElement).CommandBindingsInternal;
}
else if (isUIElement3D)
{
localCommandBindings = ((UIElement3D)targetElement).CommandBindingsInternal;
}
if (localCommandBindings != null)
{
command = localCommandBindings.FindMatch(targetElement, inputEventArgs);
}
}
// Step 4: If no command, look at class command bindings
if (command == null)
{
lock (_classCommandBindings.SyncRoot)
{
Type classType = targetElement.GetType();
while (classType != null)
{
CommandBindingCollection classCommandBindings = _classCommandBindings[classType] as CommandBindingCollection;
if (classCommandBindings != null)
{
command = classCommandBindings.FindMatch(targetElement, inputEventArgs);
if (command != null)
{
break;
}
}
classType = classType.BaseType;
}
}
}
// Step 5: If found a command, then execute it (unless it is
// the special "NotACommand" command, which we simply ignore without
// setting Handled=true, so that the input bubbles up to the parent)
if (command != null && command != ApplicationCommands.NotACommand)
{
// We currently do not support declaring the element with focus as the target
// element by setting target == null. Instead, we interpret a null target to indicate
// the element that we are routing the event through, e.g. the targetElement parameter.
if (target == null)
{
target = targetElement;
}
bool continueRouting = false;
RoutedCommand routedCommand = command as RoutedCommand;
if (routedCommand != null)
{
if (routedCommand.CriticalCanExecute(parameter,
target,
inputEventArgs.UserInitiated /*trusted*/,
out continueRouting))
{
// If the command can be executed, we never continue to route the
// input event.
continueRouting = false;
ExecuteCommand(routedCommand, parameter, target, inputEventArgs);
}
}
else
{
if (command.CanExecute(parameter))
{
command.Execute(parameter);
}
}
// If we mapped an input event to a command, we should always
// handle the input event - regardless of whether the command
// was executed or not. Unless the CanExecute handler told us
// to continue the route.
inputEventArgs.Handled = !continueRouting;
}
}
private static bool ExecuteCommand(RoutedCommand routedCommand, object parameter, IInputElement target, InputEventArgs inputEventArgs)
{
return(routedCommand.ExecuteCore(parameter, target, inputEventArgs.UserInitiated));
}
private bool ProcessStagingArea()
{
bool handled = false;
// For performance reasons, try to reuse the input event args.
// If we are reentrered, we have to start over with fresh event
// args, so we clear the member variables before continuing.
// Also, we cannot simply make an single instance of the
// PreProcessedInputEventArgs and cast it to NotifyInputEventArgs
// or ProcessInputEventArgs because a malicious user could upcast
// the object and call inappropriate methods.
NotifyInputEventArgs notifyInputEventArgs = (_notifyInputEventArgs != null) ? _notifyInputEventArgs : new NotifyInputEventArgs();
ProcessInputEventArgs processInputEventArgs = (_processInputEventArgs != null) ? _processInputEventArgs : new ProcessInputEventArgs();
PreProcessInputEventArgs preProcessInputEventArgs = (_preProcessInputEventArgs != null) ? _preProcessInputEventArgs : new PreProcessInputEventArgs();
_notifyInputEventArgs = null;
_processInputEventArgs = null;
_preProcessInputEventArgs = null;
// Because we can be reentered, we can't just enumerate over the
// staging area - that could throw an exception if the queue
// changes underneath us. Instead, just loop until we find a
// frame marker or until the staging area is empty.
StagingAreaInputItem item = null;
while ((item = PopInput()) != null)
{
// If we found a marker, we have reached the end of a
// "section" of the staging area. We just return from
// the synchronous processing of the staging area.
// If a dispatcher frame has been pushed by someone, this
// will not return to the original ProcessInput. Instead
// it will unwind to the dispatcher and since we have
// already pushed a work item to continue processing the
// input, it will simply call back into us to do more
// processing. At which point we will continue to drain
// the staging area. This could cause strage behavior,
// but it is deemed more acceptable than stalling input
// processing.
//
if (item.IsMarker)
{
break;
}
// Pre-Process the input. This could modify the staging
// area, and it could cancel the processing of this
// input event.
//
// Because we use multi-cast delegates, we always have to
// create a new multi-cast delegate when we add or remove
// a handler. This means we can just call the current
// multi-cast delegate instance, and it is safe to iterate
// over, even if we get reentered.
if (_preProcessInput != null)
{
preProcessInputEventArgs.Reset(item, this);
// Invoke the handlers in reverse order so that handlers that
// users add are invoked before handlers in the system.
Delegate[] handlers = _preProcessInput.GetInvocationList();
for (int i = (handlers.Length - 1); i >= 0; i--)
{
PreProcessInputEventHandler handler = (PreProcessInputEventHandler)handlers[i];
handler(this, preProcessInputEventArgs);
}
}
if (!preProcessInputEventArgs.Canceled)
{
// Pre-Notify the input.
//
// Because we use multi-cast delegates, we always have to
// create a new multi-cast delegate when we add or remove
// a handler. This means we can just call the current
// multi-cast delegate instance, and it is safe to iterate
// over, even if we get reentered.
if (_preNotifyInput != null)
{
notifyInputEventArgs.Reset(item, this);
// Invoke the handlers in reverse order so that handlers that
// users add are invoked before handlers in the system.
Delegate[] handlers = _preNotifyInput.GetInvocationList();
for (int i = (handlers.Length - 1); i >= 0; i--)
{
NotifyInputEventHandler handler = (NotifyInputEventHandler)handlers[i];
handler(this, notifyInputEventArgs);
}
}
// Raise the input event being processed.
InputEventArgs input = item.Input;
// Some input events are explicitly associated with
// an element. Those that are not are associated with
// the target of the input device for this event.
DependencyObject eventSource = input.Source as DependencyObject;
if (eventSource == null || !InputElement.IsValid(eventSource as IInputElement))
{
if (input.Device != null)
{
eventSource = input.Device.Target as DependencyObject;
}
}
// During synchronized input processing, event should be discarded if not listening for this input type.
if (_isSynchronizedInput &&
SynchronizedInputHelper.IsMappedEvent(input) &&
Array.IndexOf(SynchronizedInputEvents, input.RoutedEvent) < 0 &&
Array.IndexOf(PairedSynchronizedInputEvents, input.RoutedEvent) < 0)
{
if (!SynchronizedInputHelper.ShouldContinueListening(input))
{
// Discard the event
_synchronizedInputState = SynchronizedInputStates.Discarded;
SynchronizedInputHelper.RaiseAutomationEvents();
CancelSynchronizedInput();
}
else
{
_synchronizedInputAsyncClearOperation = Dispatcher.BeginInvoke((Action) delegate
{
// Discard the event
_synchronizedInputState = SynchronizedInputStates.Discarded;
SynchronizedInputHelper.RaiseAutomationEvents();
CancelSynchronizedInput();
},
DispatcherPriority.Background);
}
}
else
{
if (eventSource != null)
{
if (InputElement.IsUIElement(eventSource))
{
UIElement e = (UIElement)eventSource;
e.RaiseEvent(input, true); // Call the "trusted" flavor of RaiseEvent.
}
else if (InputElement.IsContentElement(eventSource))
{
ContentElement ce = (ContentElement)eventSource;
ce.RaiseEvent(input, true);// Call the "trusted" flavor of RaiseEvent.
}
else if (InputElement.IsUIElement3D(eventSource))
{
UIElement3D e3D = (UIElement3D)eventSource;
e3D.RaiseEvent(input, true); // Call the "trusted" flavor of RaiseEvent
}
// If synchronized input raise appropriate automation event.
if (_isSynchronizedInput && SynchronizedInputHelper.IsListening(_listeningElement, input))
{
if (!SynchronizedInputHelper.ShouldContinueListening(input))
{
SynchronizedInputHelper.RaiseAutomationEvents();
CancelSynchronizedInput();
}
else
{
_synchronizedInputAsyncClearOperation = Dispatcher.BeginInvoke((Action) delegate
{
SynchronizedInputHelper.RaiseAutomationEvents();
CancelSynchronizedInput();
},
DispatcherPriority.Background);
}
}
}
}
// Post-Notify the input.
//
// Because we use multi-cast delegates, we always have to
// create a new multi-cast delegate when we add or remove
// a handler. This means we can just call the current
// multi-cast delegate instance, and it is safe to iterate
// over, even if we get reentered.
if (_postNotifyInput != null)
{
notifyInputEventArgs.Reset(item, this);
// Invoke the handlers in reverse order so that handlers that
// users add are invoked before handlers in the system.
Delegate[] handlers = _postNotifyInput.GetInvocationList();
for (int i = (handlers.Length - 1); i >= 0; i--)
{
NotifyInputEventHandler handler = (NotifyInputEventHandler)handlers[i];
handler(this, notifyInputEventArgs);
}
}
// Post-Process the input. This could modify the staging
// area.
//
// Because we use multi-cast delegates, we always have to
// create a new multi-cast delegate when we add or remove
// a handler. This means we can just call the current
// multi-cast delegate instance, and it is safe to iterate
// over, even if we get reentered.
if (_postProcessInput != null)
{
processInputEventArgs.Reset(item, this);
RaiseProcessInputEventHandlers(_postProcessInput, processInputEventArgs);
// PreviewInputReport --> InputReport
if (item.Input.RoutedEvent == InputManager.PreviewInputReportEvent)
{
if (!item.Input.Handled)
{
InputReportEventArgs previewInputReport = (InputReportEventArgs)item.Input;
InputReportEventArgs inputReport = new InputReportEventArgs(previewInputReport.Device, previewInputReport.Report);
inputReport.RoutedEvent = InputManager.InputReportEvent;
PushInput(inputReport, item);
}
}
}
if (input.Handled)
{
handled = true;
}
}
}
// Store our input event args so that we can use them again, and
// avoid having to allocate more.
_notifyInputEventArgs = notifyInputEventArgs;
_processInputEventArgs = processInputEventArgs;
_preProcessInputEventArgs = preProcessInputEventArgs;
// Make sure to throw away the contents of the event args so
// we don't keep refs around to things we don't mean to.
_notifyInputEventArgs.Reset(null, null);
_processInputEventArgs.Reset(null, null);
_preProcessInputEventArgs.Reset(null, null);
return(handled);
}
private void PostProcessInput(object sender, ProcessInputEventArgs e)
{
InputEventArgs inputEventArgs = e.StagingItem.Input;
if (inputEventArgs.Device == this)
{
RoutedEvent routedEvent = inputEventArgs.RoutedEvent;
if (routedEvent == Manipulation.ManipulationDeltaEvent)
{
ManipulationDeltaEventArgs deltaEventArgs = inputEventArgs as ManipulationDeltaEventArgs;
if (deltaEventArgs != null)
{
// During deltas, see if panning feedback is needed on the window
ManipulationDelta unusedManipulation = deltaEventArgs.UnusedManipulation;
_manipulationLogic.RaiseBoundaryFeedback(unusedManipulation, deltaEventArgs.RequestedComplete);
_manipulationLogic.PushEventsToDevice();
// If a Complete is requested, then pass it along to the manipulation processor
if (deltaEventArgs.RequestedComplete)
{
_manipulationLogic.Complete(/* withInertia = */ deltaEventArgs.RequestedInertia);
_manipulationLogic.PushEventsToDevice();
}
else if (deltaEventArgs.RequestedCancel)
{
Debug.Assert(!deltaEventArgs.IsInertial);
OnManipulationCancel();
}
}
}
else if (routedEvent == Manipulation.ManipulationStartingEvent)
{
ManipulationStartingEventArgs startingEventArgs = inputEventArgs as ManipulationStartingEventArgs;
if (startingEventArgs != null && startingEventArgs.RequestedCancel)
{
OnManipulationCancel();
}
}
else if (routedEvent == Manipulation.ManipulationStartedEvent)
{
ManipulationStartedEventArgs startedEventArgs = inputEventArgs as ManipulationStartedEventArgs;
if (startedEventArgs != null)
{
if (startedEventArgs.RequestedComplete)
{
// If a Complete is requested, pass it along to the manipulation processor
_manipulationLogic.Complete(/* withInertia = */ false);
_manipulationLogic.PushEventsToDevice();
}
else if (startedEventArgs.RequestedCancel)
{
OnManipulationCancel();
}
else
{
// Start ticking to produce delta events
ResumeAllTicking(); // Resumes the ticking of all the suspended devices on the thread
StartTicking(); // Ensures that we continue ticking or restart ticking for this device
}
}
}
else if (routedEvent == Manipulation.ManipulationInertiaStartingEvent)
{
// Switching from using rendering for ticking to a timer at lower priority (handled by ManipulationLogic)
StopTicking();
// Remove all the manipulators so that we dont re-start manipulations accidentally
RemoveAllManipulators();
// Initialize inertia
ManipulationInertiaStartingEventArgs inertiaEventArgs = inputEventArgs as ManipulationInertiaStartingEventArgs;
if (inertiaEventArgs != null)
{
if (inertiaEventArgs.RequestedCancel)
{
OnManipulationCancel();
}
else
{
_manipulationLogic.BeginInertia(inertiaEventArgs);
}
}
}
else if (routedEvent == Manipulation.ManipulationCompletedEvent)
{
_manipulationLogic.OnCompleted();
ManipulationCompletedEventArgs completedEventArgs = inputEventArgs as ManipulationCompletedEventArgs;
if (completedEventArgs != null)
{
if (completedEventArgs.RequestedCancel)
{
Debug.Assert(!completedEventArgs.IsInertial);
OnManipulationCancel();
}
else if (!(completedEventArgs.IsInertial && _ticking))
{
// Remove the manipulation device only if
// another manipulation didnot start
OnManipulationComplete();
}
}
}
else if (routedEvent == Manipulation.ManipulationBoundaryFeedbackEvent)
{
ManipulationBoundaryFeedbackEventArgs boundaryEventArgs = inputEventArgs as ManipulationBoundaryFeedbackEventArgs;
if (boundaryEventArgs != null)
{
_compensateForBoundaryFeedback = boundaryEventArgs.CompensateForBoundaryFeedback;
}
}
}
}
internal void ProcessManipulationInput(InputEventArgs e)
{
EventTrace.EasyTraceEvent(EventTrace.Keyword.KeywordInput | EventTrace.Keyword.KeywordPerf, EventTrace.Level.Info, EventTrace.Event.ManipulationEventRaised, 0);
_inputManager.ProcessInput(e);
}
//
internal virtual void OnInput(InputEventArgs e)
{
}
internal void BeginEdit(InputEventArgs e, bool handled)
{
var owner = DataGridOwner;
if (owner != null)
{
if (owner.BeginEdit(e))
{
e.Handled |= handled;
}
}
}
private void PushEvent(InputEventArgs e)
{
// We only expect to generate one event at a time and should never need a queue.
Debug.Assert(_generatedEvent == null, "There is already a generated event waiting to be pushed.");
_generatedEvent = e;
}