void _dispatchOnStartCallbackIfNeeded()
{
D.assert(_state == _ScaleState.started);
if (onStart != null)
{
invokeCallback <object>("onStart", () => {
onStart(new ScaleStartDetails(
focalPoint: _currentFocalPoint,
localFocalPoint: PointerEvent.transformPosition(_lastTransform, _currentFocalPoint)
));
return(null);
});
}
}
void _handlePointerEvent(PointerEvent evt)
{
if (evt is PointerScrollEvent)
{
this._handlePointerScrollEvent(evt);
return;
}
if (evt is PointerHoverEvent)
{
this._handlePointerHoverEvent(evt);
}
HitTestResult result;
if (evt is PointerDownEvent)
{
D.assert(!this._hitTests.ContainsKey(evt.pointer));
result = new HitTestResult();
this.hitTest(result, evt.position);
this._hitTests[evt.pointer] = result;
D.assert(() => {
if (D.debugPrintHitTestResults)
{
Debug.LogFormat("{0}: {1}", evt, result);
}
return(true);
});
}
else if (evt is PointerUpEvent || evt is PointerCancelEvent)
{
result = this._hitTests.getOrDefault(evt.pointer);
this._hitTests.Remove(evt.pointer);
}
else if (evt.down)
{
result = this._hitTests.getOrDefault(evt.pointer);
}
else
{
return;
}
if (result != null)
{
this.dispatchEvent(evt, result);
}
}
void _handlePointerScrollEvent(PointerEvent evt)
{
this.pointerRouter.clearScrollRoute(evt.pointer);
if (!this.pointerRouter.acceptScroll())
{
return;
}
HitTestResult result = new HitTestResult();
this.hitTest(result, evt.position);
this.dispatchEvent(evt, result);
}
protected override void handlePrimaryPointer(PointerEvent evt)
{
if (evt is PointerUpEvent)
{
if (this._longPressAccepted)
{
if (this.onLongPressUp != null)
{
this.invokeCallback <object>("onLongPressUp", () => {
this.onLongPressUp();
return(null);
});
}
if (this.onLongPressEnd != null)
{
this.invokeCallback <object>("onLongPressEnd", () => {
this.onLongPressEnd(new LongPressEndDetails(
globalPosition: evt.position,
localPosition: evt.localPosition));
return(null);
});
}
this._longPressAccepted = true;
}
else
{
this.resolve(GestureDisposition.rejected);
}
}
else if (evt is PointerDownEvent || evt is PointerCancelEvent)
{
this._longPressAccepted = false;
this._longPressOrigin = OffsetPair.fromEventPosition(evt);
}
else if (evt is PointerMoveEvent && this._longPressAccepted && this.onLongPressMoveUpdate != null)
{
this.invokeCallback <object>("onLongPressMoveUpdate", () => {
this.onLongPressMoveUpdate(new LongPressMoveUpdateDetails(
globalPosition: evt.position,
localPosition: evt.localPosition,
offsetFromOrigin: evt.position - this._longPressOrigin.global,
localOffsetFromOrigin: evt.localPosition - this._longPressOrigin.local
));
return(null);
});
}
}
public override void addAllowedPointer(PointerEvent pEvent)
{
var _pEvent = (PointerDownEvent)pEvent;
D.assert(_pEvent != null);
D.assert(_pointers != null);
D.assert(_pEvent.position != null);
D.assert(!_pointers.ContainsKey(_pEvent.pointer));
T state = createNewPointerState(_pEvent);
_pointers[_pEvent.pointer] = state;
GestureBinding.instance.pointerRouter.addRoute(_pEvent.pointer, _handleEvent);
state._setArenaEntry(GestureBinding.instance.gestureArena.add(_pEvent.pointer, this));
}
public override void addAllowedPointer(PointerEvent Event)
{
if (!(Event is PointerUpEvent) && Event.pressureMax <= 1.0f)
{
resolve(GestureDisposition.rejected);
}
else
{
startTrackingPointer(Event.pointer, Event.transform);
if (_state == _ForceState.ready)
{
_state = _ForceState.possible;
_lastPosition = OffsetPair.fromEventPosition(Event);
}
}
}
public void handleEvent(PointerEvent evt, HitTestEntry entry)
{
this.pointerRouter.route(evt);
if (evt is PointerDownEvent)
{
this.gestureArena.close(evt.pointer);
}
else if (evt is PointerUpEvent)
{
this.gestureArena.sweep(evt.pointer);
}
else if (evt is PointerSignalEvent)
{
this.pointerSignalResolver.resolve((PointerSignalEvent)evt);
}
}
public void _dispatchEventToRoutes(
PointerEvent evt,
Dictionary <PointerRoute, Matrix4> referenceRoutes,
Dictionary <PointerRoute, Matrix4> copiedRoutes
)
{
foreach (var item in copiedRoutes)
{
var route = item.Key;
var transform = item.Value;
if (referenceRoutes.ContainsKey(route))
{
_dispatch(evt, route, transform);
}
}
}
public override void addAllowedPointer(PointerEvent evt)
{
var _evt = (PointerDownEvent)evt;
D.assert(_evt != null);
startTrackingPointer(_evt.pointer, _evt.transform);
if (state == GestureRecognizerState.ready)
{
state = GestureRecognizerState.possible;
primaryPointer = _evt.pointer;
initialPosition = new OffsetPair(local: _evt.localPosition, global: _evt.position);
if (deadline != null)
{
_timer = Timer.create(deadline.Value, () => didExceedDeadlineWithEvent(_evt));
}
}
}
public override void addAllowedPointer(PointerEvent evt)
{
startTrackingPointer(evt.pointer, evt.transform);
_velocityTrackers[evt.pointer] = new VelocityTracker();
if (_state == _ScaleState.ready)
{
_state = _ScaleState.possible;
_initialSpan = 0.0f;
_currentSpan = 0.0f;
_initialHorizontalSpan = 0.0f;
_currentHorizontalSpan = 0.0f;
_initialVerticalSpan = 0.0f;
_currentVerticalSpan = 0.0f;
_pointerLocations = new Dictionary <int, Offset>();
_pointerQueue = new List <int>();
}
}
protected override void handleEvent(PointerEvent evt)
{
D.assert(_state != _ScaleState.ready);
bool didChangeConfiguration = false;
bool shouldStartIfAccepted = false;
if (evt is PointerMoveEvent)
{
VelocityTracker tracker = _velocityTrackers[evt.pointer];
D.assert(tracker != null);
if (!evt.synthesized)
{
tracker.addPosition(evt.timeStamp, evt.position);
}
_pointerLocations[evt.pointer] = evt.position;
shouldStartIfAccepted = true;
_lastTransform = evt.transform;
}
else if (evt is PointerDownEvent)
{
_pointerLocations[evt.pointer] = evt.position;
_pointerQueue.Add(evt.pointer);
didChangeConfiguration = true;
shouldStartIfAccepted = true;
_lastTransform = evt.transform;
}
else if (evt is PointerUpEvent || evt is PointerCancelEvent)
{
_pointerLocations.Remove(evt.pointer);
_pointerQueue.Remove(evt.pointer);
didChangeConfiguration = true;
_lastTransform = evt.transform;
}
_updateLines();
_update();
if (!didChangeConfiguration || _reconfigure(evt.pointer))
{
_advanceStateMachine(shouldStartIfAccepted);
}
stopTrackingIfPointerNoLongerDown(evt);
}
protected override void handleEvent(PointerEvent evt)
{
D.assert(this.state != GestureRecognizerState.ready);
if (this.state == GestureRecognizerState.possible && evt.pointer == this.primaryPointer)
{
if (evt is PointerMoveEvent && this._getDistance(evt) > Constants.kTouchSlop)
{
this.resolve(GestureDisposition.rejected);
this.stopTrackingPointer(this.primaryPointer);
}
else
{
this.handlePrimaryPointer(evt);
}
}
this.stopTrackingIfPointerNoLongerDown(evt);
}
public override void addAllowedPointer(PointerEvent evt)
{
D.assert(!_gestureMap.ContainsKey(evt.pointer));
_gestureMap[evt.pointer] = new _TapGesture(
gestureRecognizer: this,
evt: evt,
longTapDelay: longTapDelay
);
if (onTapDown != null)
{
invokeCallback <object>("onTapDown", () => {
onTapDown(evt.pointer, new TapDownDetails(globalPosition: evt.position,
localPosition: evt.localPosition,
kind: evt.kind
));
return(null);
});
}
}
public void route(PointerEvent evt)
{
// TODO: update this to latest version
Dictionary <PointerRoute, Matrix4> routes;
this._routeMap.TryGetValue(evt.pointer, out routes);
Dictionary <PointerRoute, Matrix4> copiedGlobalRoutes = new Dictionary <PointerRoute, Matrix4>(this._globalRoutes);
if (routes != null)
{
this._dispatchEventToRoutes(
evt,
routes,
new Dictionary <PointerRoute, Matrix4>(routes)
);
}
this._dispatchEventToRoutes(evt, this._globalRoutes, copiedGlobalRoutes);
}
void _handlePointerHoverEvent(PointerEvent evt)
{
HitTestResult result = new HitTestResult();
this.hitTest(result, evt.position);
// enter event
foreach (var hitTestEntry in result.path)
{
if (this.lastMoveTargets.Contains(hitTestEntry.target))
{
hitTestEntry.target.handleEvent(evt, hitTestEntry);
this.lastMoveTargets.Remove(hitTestEntry.target);
}
else
{
hitTestEntry.target.handleEvent(new PointerEnterEvent(
timeStamp: evt.timeStamp,
pointer: evt.pointer,
device: evt.device,
kind: evt.kind
), hitTestEntry);
}
}
foreach (var lastMoveTarget in this.lastMoveTargets)
{
lastMoveTarget.handleEvent(new PointerLeaveEvent(
timeStamp: evt.timeStamp,
pointer: evt.pointer,
device: evt.device,
kind: evt.kind
), null);
}
this.lastMoveTargets.Clear();
foreach (var hitTestEntry in result.path)
{
this.lastMoveTargets.Add(hitTestEntry.target);
}
this.dispatchEvent(evt, result);
}
// Handler for events coming from the PointerRouter.
void _handleEvent(PointerEvent evt)
{
if (evt.kind != PointerDeviceKind.mouse)
{
return;
}
int deviceId = evt.device;
if (this._trackedAnnotations.isEmpty())
{
// If we are adding the device again, then we're not removing it anymore.
this._lastMouseEvent.Remove(deviceId);
return;
}
if (evt is PointerRemovedEvent)
{
this._lastMouseEvent.Remove(deviceId);
// If the mouse was removed, then we need to schedule one more check to
// exit any annotations that were active.
this._scheduleMousePositionCheck();
}
else
{
if (evt is PointerMoveEvent ||
evt is PointerHoverEvent ||
evt is PointerDownEvent)
{
if (!this._lastMouseEvent.ContainsKey(deviceId) ||
this._lastMouseEvent[deviceId].position != evt.position)
{
this._scheduleMousePositionCheck();
}
this._lastMouseEvent[deviceId] = evt;
}
}
#if UNITY_EDITOR
this._handleDragFromEditorEvent(evt, deviceId);
#endif
}
void _advanceStateMachine(bool shouldStartIfAccepted)
{
if (_state == _ScaleState.ready)
{
_state = _ScaleState.possible;
}
if (_state == _ScaleState.possible)
{
float spanDelta = (_currentSpan - _initialSpan).abs();
float focalPointDelta = (_currentFocalPoint - _initialFocalPoint).distance;
if (spanDelta > Constants.kScaleSlop || focalPointDelta > Constants.kPanSlop)
{
resolve(GestureDisposition.accepted);
}
}
else if (_state >= _ScaleState.accepted)
{
resolve(GestureDisposition.accepted);
}
if (_state == _ScaleState.accepted && shouldStartIfAccepted)
{
_state = _ScaleState.started;
_dispatchOnStartCallbackIfNeeded();
}
if (_state == _ScaleState.started && onUpdate != null)
{
invokeCallback <object>("onUpdate", () => {
onUpdate(new ScaleUpdateDetails(
scale: _scaleFactor,
horizontalScale: _horizontalScaleFactor,
verticalScale: _verticalScaleFactor,
focalPoint: _currentFocalPoint,
localFocalPoint: PointerEvent.transformPosition(_lastTransform, _currentFocalPoint),
rotation: _computeRotationFactor()
));
return(null);
});
}
}
public static bool _shouldMarkStateDirty(_MouseState state, PointerEvent value)
{
if (state == null)
{
return(true);
}
D.assert(value != null);
PointerEvent lastEvent = state.latestEvent;
D.assert(value.device == lastEvent.device);
D.assert((value is PointerAddedEvent) == (lastEvent is PointerRemovedEvent));
if (value is PointerSignalEvent)
{
return(false);
}
return(lastEvent is PointerAddedEvent ||
value is PointerRemovedEvent ||
lastEvent.position != value.position);
}
void _handleEvent(PointerEvent evt) {
_TapTracker tracker = this._trackers[evt.pointer];
D.assert(tracker != null);
if (evt is PointerUpEvent) {
if (this._firstTap == null) {
this._registerFirstTap(tracker);
}
else {
this._registerSecondTap(tracker);
}
}
else if (evt is PointerMoveEvent) {
if (!tracker.isWithinTolerance(evt, Constants.kDoubleTapTouchSlop)) {
this._reject(tracker);
}
}
else if (evt is PointerCancelEvent) {
this._reject(tracker);
}
}
public void dispatchEvent(PointerEvent evt, HitTestResult hitTestResult)
{
if (hitTestResult == null)
{
D.assert(evt is PointerHoverEvent ||
evt is PointerAddedEvent ||
evt is PointerRemovedEvent ||
evt is PointerDragFromEditorHoverEvent ||
evt is PointerDragFromEditorReleaseEvent
);
try {
pointerRouter.route(evt);
}
catch (Exception ex) {
IEnumerable <DiagnosticsNode> infoCollector()
{
yield return(new DiagnosticsProperty <PointerEvent>("Event", evt, style: DiagnosticsTreeStyle.errorProperty));
}
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: ex,
library: "gesture library",
context: new ErrorDescription("while dispatching a non-hit-tested pointer event"),
informationCollector: infoCollector
)
);
}
return;
}
foreach (HitTestEntry entry in hitTestResult.path)
{
try {
entry.target.handleEvent(evt.transformed(entry.transform), entry);
}
catch (Exception ex) {
D.logError("Error while dispatching a pointer event: ", ex);
}
}
}
public _TapGesture(
MultiTapGestureRecognizer gestureRecognizer,
PointerEvent evt,
TimeSpan longTapDelay
) : base(
evt: (PointerDownEvent)evt,
entry: GestureBinding.instance.gestureArena.add(evt.pointer, gestureRecognizer),
doubleTapMinTime: Constants.kDoubleTapMinTime
)
{
this.gestureRecognizer = gestureRecognizer;
this._lastPosition = OffsetPair.fromEventPosition(evt);
this.startTrackingPointer(this.handleEvent, evt.transform);
if (longTapDelay > TimeSpan.Zero)
{
this._timer = Window.instance.run(longTapDelay, () => {
this._timer = null;
this.gestureRecognizer._dispatchLongTap(evt.pointer, this._lastPosition);
});
}
}
protected override void handlePrimaryPointer(PointerEvent evt)
{
if (evt is PointerUpEvent)
{
this._finalPosition = evt.position;
if (this._wonArenaForPrimaryPointer)
{
this.resolve(GestureDisposition.accepted);
this._checkUp();
}
}
else if (evt is PointerCancelEvent)
{
if (this._sentTapDown && this.onTapCancel != null)
{
this.invokeCallback <object>("onTapCancel", () => this.onTapCancel);
}
this._reset();
}
}
public void dispatchEvent(PointerEvent evt, HitTestResult hitTestResult)
{
if (hitTestResult == null)
{
D.assert(evt is PointerHoverEvent ||
evt is PointerAddedEvent ||
evt is PointerRemovedEvent ||
evt is PointerDragFromEditorHoverEvent ||
evt is PointerDragFromEditorReleaseEvent
);
try {
this.pointerRouter.route(evt);
}
catch (Exception ex) {
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: ex,
library: "gesture library",
context: "while dispatching a non-hit-tested pointer event",
informationCollector: information => {
information.AppendLine("Event: ");
information.AppendFormat(" {0}", evt);
}
)
);
}
return;
}
foreach (HitTestEntry entry in hitTestResult.path)
{
try {
entry.target.handleEvent(evt.transformed(entry.transform), entry);
}
catch (Exception ex) {
D.logError("Error while dispatching a pointer event: ", ex);
}
}
}
protected override void handlePrimaryPointer(PointerEvent evt)
{
if (evt is PointerUpEvent)
{
if (this._longPressAccepted && this.onLongPressUp != null)
{
this._longPressAccepted = false;
this.invokeCallback <object>("onLongPressUp", () => {
this.onLongPressUp();
return(null);
});
}
else
{
this.resolve(GestureDisposition.rejected);
}
}
else if (evt is PointerDownEvent || evt is PointerCancelEvent)
{
this._longPressAccepted = false;
}
}
public override void addAllowedPointer(PointerEvent evt)
{
if (_firstTap != null)
{
if (!_firstTap.isWithinGlobalTolerance(evt, Constants.kDoubleTapSlop))
{
// Ignore out-of-bounds second taps.
return;
}
else if (!_firstTap.hasElapsedMinTime() ||
!_firstTap.hasSameButton(evt as PointerDownEvent))
{
// Restart when the second tap is too close to the first, or when buttons
// mismatch.
_reset();
_trackFirstTap(evt);
return;
}
}
_trackFirstTap(evt);
}
protected override void handlePrimaryPointer(PointerEvent e)
{
if (e is PointerUpEvent)
{
if (this._longPressAccepted == true && this.onLongPressUp != null)
{
this._longPressAccepted = false;
this.invokeCallback <object>("onLongPressUp", () => {
this.onLongPressUp(new GestureLongPressDragUpDetails(
sourceTimeStamp: e.timeStamp,
globalPosition: e.position
));
return(null);
});
}
else
{
this.resolve(GestureDisposition.rejected);
}
}
else if (e is PointerDownEvent)
{
this._longPressAccepted = false;
this._longPressStartTimestamp = e.timeStamp;
this._longPressOrigin = e.position;
}
else if (e is PointerMoveEvent && this._longPressAccepted && this.onLongPressDragUpdate != null)
{
this.invokeCallback <object>("onLongPressDrag", () => {
this.onLongPressDragUpdate(new GestureLongPressDragUpdateDetails(
sourceTimeStamp: e.timeStamp,
globalPosition: e.position,
offsetFromOrigin: e.position - this._longPressOrigin
));
return(null);
});
}
}
protected override void handlePrimaryPointer(PointerEvent evt)
{
if (evt is PointerUpEvent)
{
this._up = (PointerUpEvent)evt;
this._checkUp();
}
else if (evt is PointerCancelEvent)
{
this.resolve(GestureDisposition.rejected);
if (this._sentTapDown)
{
this._checkCancel((PointerCancelEvent)evt, "");
}
this._reset();
}
else if (evt.buttons != this._down?.buttons)
{
this.resolve(GestureDisposition.rejected);
this.stopTrackingPointer(this.primaryPointer);
}
}
public void route(PointerEvent evt)
{
HashSet <PointerRoute> routes;
this._routeMap.TryGetValue(evt.pointer, out routes);
if (routes != null)
{
foreach (PointerRoute route in new List <PointerRoute>(routes))
{
if (routes.Contains(route))
{
this._dispatch(evt, route);
}
}
}
foreach (PointerRoute route in new List <PointerRoute>(this._globalRoutes))
{
if (this._globalRoutes.Contains(route))
{
this._dispatch(evt, route);
}
}
}
void _handleEvent(PointerEvent evt)
{
if (evt.kind != PointerDeviceKind.mouse)
{
return;
}
int deviceId = evt.device;
if (this._trackedAnnotations.isEmpty())
{
this._lastMouseEvent.Remove(deviceId);
return;
}
if (evt is PointerRemovedEvent)
{
this._lastMouseEvent.Remove(deviceId);
this._scheduleMousePositionCheck();
}
else
{
if (evt is PointerMoveEvent ||
evt is PointerHoverEvent ||
evt is PointerDownEvent)
{
if (!this._lastMouseEvent.ContainsKey(deviceId) ||
this._lastMouseEvent[deviceId].position != evt.position)
{
this._scheduleMousePositionCheck();
}
this._lastMouseEvent[deviceId] = evt;
}
}
}
public bool isWithinTolerance(PointerEvent evt, float tolerance) {
Offset offset = evt.position - this._initialPosition;
return offset.distance <= tolerance;
}