protected void invokeCallback(string name, RecognizerVoidCallvack callback, Func <string> debugReport = null)
{
D.assert(callback != null);
try {
D.assert(() => {
if (D.debugPrintRecognizerCallbacksTrace)
{
var report = debugReport != null ? debugReport() : null;
var prefix = D.debugPrintGestureArenaDiagnostics ? new string(' ', 19) + "❙ " : "";
Debug.LogFormat("{0}this calling {1} callback.{2}",
prefix, name, report.isNotEmpty() ? " " + report : "");
}
return(true);
});
}
catch (Exception ex) {
IEnumerable <DiagnosticsNode> infoCollector()
{
yield return(new StringProperty("Handler", name));
yield return(new DiagnosticsProperty <GestureRecognizer>("Recognizer", this, style: DiagnosticsTreeStyle.errorProperty));
}
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: ex,
library: "gesture",
context: new ErrorDescription("while handling a gesture"),
informationCollector: infoCollector
));
}
}
public void resolve(PointerSignalEvent evt)
{
if (this._firstRegisteredCallback == null)
{
D.assert(this._currentEvent == null);
return;
}
D.assert(this._currentEvent == evt);
try {
this._firstRegisteredCallback(evt);
}
catch (Exception exception) {
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: exception,
library: "gesture library",
context: "while resolving a PointerSignalEvent",
informationCollector: information => {
information.AppendLine("Event: ");
information.AppendFormat(" {0}", evt);
}
)
);
}
this._firstRegisteredCallback = null;
this._currentEvent = null;
}
void _executeTimingsCallbacks(List<FrameTiming> timings) {
var clonedCallbacks =
new List<TimingsCallback>(collection: _timingsCallbacks);
foreach (var callback in clonedCallbacks) {
try {
if (_timingsCallbacks.Contains(item: callback)) {
callback(timings: timings);
}
}
catch (Exception ex) {
InformationCollector collector = null;
D.assert(() => {
IEnumerable<DiagnosticsNode> infoCollect() {
yield return new DiagnosticsProperty<TimingsCallback>(
"The TimingsCallback that gets executed was",
value: callback,
style: DiagnosticsTreeStyle.errorProperty);
}
collector = infoCollect;
return true;
});
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: ex,
context: new ErrorDescription("while executing callbacks for FrameTiming"),
informationCollector: collector
));
}
}
}
public void notifyListeners()
{
var localListeners = new List <VoidCallback>(this._listeners);
foreach (VoidCallback listener in localListeners)
{
try {
if (this._listeners.Contains(listener))
{
listener();
}
}
catch (Exception exception) {
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: exception,
library: "animation library",
context: "while notifying listeners for " + this.GetType(),
informationCollector: information => {
information.AppendLine("The " + this.GetType() + " notifying listeners was:");
information.Append(" " + this);
}
));
}
}
}
public virtual void addListener(ImageListener listener, ImageErrorListener onError = null)
{
this._listeners.Add(new _ImageListenerPair {
listener = listener, errorListener = onError
});
if (this.currentImage != null)
{
try {
listener(this.currentImage, true);
}
catch (Exception ex) {
this.reportError(
context: "by a synchronously-called image listener",
exception: ex
);
}
}
if (this.currentError != null && onError != null)
{
try {
onError(this.currentError.exception);
}
catch (Exception ex) {
UIWidgetsError.reportError(
new UIWidgetsErrorDetails(
exception: ex,
library: "image resource service",
context: "when reporting an error to an image listener"
)
);
}
}
}
public void resolve(PointerSignalEvent evt)
{
if (_firstRegisteredCallback == null)
{
D.assert(_currentEvent == null);
return;
}
D.assert(_isSameEvent(_currentEvent, evt));
try {
_firstRegisteredCallback(_currentEvent);
}
catch (Exception exception) {
IEnumerable <DiagnosticsNode> infoCollector()
{
yield return(new DiagnosticsProperty <PointerSignalEvent>("Event", evt, style: DiagnosticsTreeStyle.errorProperty));
}
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: exception,
library: "gesture library",
context: new ErrorDescription("while resolving a PointerSignalEvent"),
informationCollector: infoCollector
)
);
}
_firstRegisteredCallback = null;
_currentEvent = null;
}
public void dispatchEvent(PointerEvent evt, HitTestResult result)
{
if (result == null)
{
D.assert(evt is PointerHoverEvent || evt is PointerAddedEvent || evt is PointerRemovedEvent);
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 result.path)
{
try {
entry.target.handleEvent(evt, entry);
}
catch (Exception ex) {
D.logError("Error while dispatching a pointer event: ", ex);
}
}
}
public virtual void addListener(ImageStreamListener listener)
{
_listeners.Add(listener);
if (_currentImage != null)
{
try {
listener.onImage(_currentImage, true);
}
catch (Exception exception) {
reportError(
context: new ErrorDescription("by a synchronously-called image listener"),
exception: exception
);
}
}
if (_currentError != null && listener.onError != null)
{
try {
listener.onError(_currentError.exception);
}
catch (Exception exception) {
UIWidgetsError.reportError(
new UIWidgetsErrorDetails(
exception: exception,
library: "image resource service",
context: new ErrorDescription("by a synchronously-called image error listener")
)
);
}
}
}
public void notifyListeners()
{
var localListeners = new List <VoidCallback>(_listeners);
foreach (VoidCallback listener in localListeners)
{
InformationCollector collector = null;
D.assert(() => {
IEnumerable <DiagnosticsNode> infoCollector()
{
yield return(new DiagnosticsProperty <AnimationLocalListenersMixinAnimationLazyListenerMixinAnimation <T> >(
"The " + GetType() + " notifying listeners was",
this,
style: DiagnosticsTreeStyle.errorProperty
));
}
collector = infoCollector;
return(true);
});
try {
if (_listeners.Contains(listener))
{
listener();
}
} catch (Exception exception) {
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: exception,
library: "animation library",
context: new ErrorDescription("while notifying listeners for " + GetType()),
informationCollector: collector
));
}
}
}
void _invokeFrameCallback(FrameCallback callback, TimeSpan timeStamp, StackTrace callbackStack = null)
{
D.assert(callback != null);
D.assert(_FrameCallbackEntry.debugCurrentCallbackStack == null);
D.assert(() => {
_FrameCallbackEntry.debugCurrentCallbackStack = callbackStack;
return(true);
});
try {
callback(timeStamp);
} catch (Exception ex) {
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: ex,
library: "scheduler library",
context: "during a scheduler callback",
informationCollector: callbackStack == null
? (InformationCollector)null
: information => {
information.AppendLine(
"\nThis exception was thrown in the context of a scheduler callback. " +
"When the scheduler callback was _registered_ (as opposed to when the " +
"exception was thrown), this was the stack:"
);
UIWidgetsError.defaultStackFilter(callbackStack.ToString().TrimEnd().Split('\n'))
.Each((line) => information.AppendLine(line));
}
));
}
D.assert(() => {
_FrameCallbackEntry.debugCurrentCallbackStack = null;
return(true);
});
}
public Future handlePlatformMessage(
string channel, byte[] data,
PlatformMessageResponseCallback callback)
{
MessageHandler handler = _handlers[channel];
if (handler == null)
{
ui_.channelBuffers.push(channel, data, callback);
return(Future.value());
}
return(handler(data).then(bytes => {
var response = (byte[])bytes;
callback(response);
return FutureOr.nil;
}, onError: exception => {
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: exception,
library: "services library",
context: new ErrorDescription("during a platform message callback"))
);
callback(null);
return FutureOr.nil;
}));
}
void _show()
{
D.assert(this._mode != _RefreshIndicatorMode.refresh);
D.assert(this._mode != _RefreshIndicatorMode.snap);
Promise completer = new Promise();
this._pendingRefreshFuture = completer;
this._mode = _RefreshIndicatorMode.snap;
this._positionController
.animateTo(1.0f / RefreshIndicatorUtils._kDragSizeFactorLimit,
duration: RefreshIndicatorUtils._kIndicatorSnapDuration)
.Then(() => {
if (this.mounted && this._mode == _RefreshIndicatorMode.snap)
{
D.assert(this.widget.onRefresh != null);
this.setState(() => { this._mode = _RefreshIndicatorMode.refresh; });
Promise refreshResult = this.widget.onRefresh();
D.assert(() => {
if (refreshResult == null)
{
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: new UIWidgetsError(
"The onRefresh callback returned null.\n" +
"The RefreshIndicator onRefresh callback must return a Promise."
),
context: "when calling onRefresh",
library: "material library"
));
}
return(true);
});
if (refreshResult == null)
{
return;
}
refreshResult.Then(() => {
if (this.mounted && this._mode == _RefreshIndicatorMode.refresh)
{
completer.Resolve();
this._dismiss(_RefreshIndicatorMode.done);
}
});
}
});
}
void _show()
{
D.assert(_mode != _RefreshIndicatorMode.refresh);
D.assert(_mode != _RefreshIndicatorMode.snap);
Completer completer = Completer.create();
_pendingRefreshFuture = completer.future;
_mode = _RefreshIndicatorMode.snap;
_positionController
.animateTo(1.0f / RefreshIndicatorUtils._kDragSizeFactorLimit,
duration: RefreshIndicatorUtils._kIndicatorSnapDuration)
.then((value) => {
if (mounted && _mode == _RefreshIndicatorMode.snap)
{
D.assert(widget.onRefresh != null);
setState(() => { _mode = _RefreshIndicatorMode.refresh; });
Future refreshResult = widget.onRefresh();
D.assert(() => {
if (refreshResult == null)
{
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: new UIWidgetsError(
"The onRefresh callback returned null.\n" +
"The RefreshIndicator onRefresh callback must return a Promise."
),
context: new ErrorDescription("when calling onRefresh"),
library: "material library"
));
}
return(true);
});
if (refreshResult == null)
{
return;
}
refreshResult.whenComplete(() => {
if (mounted && _mode == _RefreshIndicatorMode.refresh)
{
completer.complete();
_dismiss(_RefreshIndicatorMode.done);
}
});
}
});
}
internal static UIWidgetsErrorDetails _debugReportException(
string context,
Exception exception,
InformationCollector informationCollector = null
)
{
var details = new UIWidgetsErrorDetails(
exception: exception,
library: "widgets library",
context: context,
informationCollector: informationCollector
);
UIWidgetsError.reportError(details);
return(details);
}
void _invokeFrameCallback(FrameCallback callback, TimeSpan timeStamp, string callbackStack = null)
{
D.assert(callback != null);
D.assert(_FrameCallbackEntry.debugCurrentCallbackStack == null);
D.assert(() => {
_FrameCallbackEntry.debugCurrentCallbackStack = callbackStack;
return(true);
});
try {
callback(timeStamp: timeStamp);
}
catch (Exception ex) {
IEnumerable <DiagnosticsNode> infoCollector()
{
yield return(DiagnosticsNode.message(
"\nThis exception was thrown in the context of a scheduler callback. " +
"When the scheduler callback was _registered_ (as opposed to when the " +
"exception was thrown), this was the stack:"));
var builder = new StringBuilder();
foreach (var line in UIWidgetsError.defaultStackFilter(
callbackStack.TrimEnd().Split('\n')))
{
builder.AppendLine(value: line);
}
yield return(DiagnosticsNode.message(builder.ToString()));
}
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: ex,
"scheduler library",
new ErrorDescription("during a scheduler callback"),
informationCollector: callbackStack == null
? (InformationCollector)null
: infoCollector
));
}
D.assert(() => {
_FrameCallbackEntry.debugCurrentCallbackStack = null;
return(true);
});
}
bool handleEventLoopCallback()
{
if (_taskQueue.isEmpty || locked)
{
return(false);
}
var entry = _taskQueue.first;
if (schedulingStrategy(priority: entry.priority, this))
{
try {
_taskQueue.removeFirst();
entry.run();
}
catch (Exception exception) {
string callbackStack = null;
D.assert(() => {
callbackStack = entry.debugStack;
return(true);
});
IEnumerable <DiagnosticsNode> infoCollector()
{
yield return(DiagnosticsNode.message(
"\nThis exception was thrown in the context of a scheduler callback. " +
"When the scheduler callback was _registered_ (as opposed to when the " +
"exception was thrown), this was the stack: " + callbackStack));
}
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: exception,
"scheduler library",
new ErrorDescription("during a task callback"),
informationCollector: callbackStack == null
? (InformationCollector)null
: infoCollector
));
}
return(_taskQueue.isNotEmpty);
}
return(false);
}
void _rebuild()
{
try {
_child = updateChild(_child, widget.child,
_rootChildSlot);
// allow
}
catch (Exception ex) {
var details = new UIWidgetsErrorDetails(
exception: ex,
library: "widgets library",
context: new ErrorDescription("attaching to the render tree")
);
UIWidgetsError.reportError(details);
Widget error = ErrorWidget.builder(details);
_child = updateChild(null, error, _rootChildSlot);
}
}
Future <byte[]> _sendPlatformMessage(string channel, byte[] message)
{
Completer completer = Completer.create();
Window.instance.sendPlatformMessage(channel, message, (reply) => {
try {
completer.complete(FutureOr.value(reply));
}
catch (Exception exception) {
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: exception,
library: "services library",
context: new ErrorDescription("during a platform message response callback")
));
}
});
return(completer.future.to <byte[]>());
}
List <PictureLayer> _processConflictingPhysicalLayers(PhysicalModelLayer predecessor, PhysicalModelLayer child)
{
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: new UIWidgetsError("Painting order is out of order with respect to elevation.\n" +
"See https://api.flutter.dev/flutter/rendering/debugCheckElevations.html " +
"for more details."),
context: "during compositing",
informationCollector: (StringBuilder builder) => {
builder.AppendLine("Attempted to composite layer");
builder.AppendLine(child.ToString());
builder.AppendLine("after layer");
builder.AppendLine(predecessor.ToString());
builder.AppendLine("which occupies the same area at a higher elevation.");
}
));
return(new List <PictureLayer> {
this._highlightConflictingLayer(predecessor),
this._highlightConflictingLayer(child)
});
}
protected void reportError(
DiagnosticsNode context = null,
Exception exception = null,
InformationCollector informationCollector = null,
bool silent = false)
{
_currentError = new UIWidgetsErrorDetails(
exception: exception,
library: "image resource service",
context: context,
informationCollector: informationCollector,
silent: silent
);
var localErrorListeners = LinqUtils <ImageErrorListener> .WhereList(
LinqUtils <ImageErrorListener, ImageStreamListener> .SelectList(_listeners, (l => l.onError)),
(l => l != null));
if (localErrorListeners.isEmpty())
{
UIWidgetsError.reportError(_currentError);
}
else
{
foreach (var errorListener in localErrorListeners)
{
try {
errorListener(exception);
}
catch (Exception ex) {
UIWidgetsError.reportError(
new UIWidgetsErrorDetails(
context: new ErrorDescription("when reporting an error to an image listener"),
library: "image resource service",
exception: ex
)
);
}
}
}
}
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 static Future precacheImage(
ImageProvider provider,
BuildContext context,
Size size = null,
ImageErrorListener onError = null
)
{
var config = createLocalImageConfiguration(context: context, size: size);
var completer = Completer.create();
var stream = provider.resolve(configuration: config);
ImageStreamListener listener = null;
listener = new ImageStreamListener(
(image, sync) => {
if (!completer.isCompleted)
{
completer.complete();
}
SchedulerBinding.instance.addPostFrameCallback(timeStamp => {
stream.removeListener(listener: listener);
});
},
onError: error => {
if (!completer.isCompleted)
{
completer.complete();
}
stream.removeListener(listener: listener);
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
context: new ErrorDescription("image failed to precache"),
library: "image resource service",
silent: true));
}
);
stream.addListener(listener: listener);
return(completer.future);
}
protected void reportError(
string context = null,
Exception exception = null,
InformationCollector informationCollector = null,
bool silent = false)
{
this.currentError = new UIWidgetsErrorDetails(
exception: exception,
library: "image resource service",
context: context,
informationCollector: informationCollector,
silent: silent
);
var localErrorListeners = this._listeners.Select(l => l.errorListener).Where(l => l != null).ToList();
if (localErrorListeners.isEmpty())
{
UIWidgetsError.reportError(this.currentError);
}
else
{
foreach (var errorListener in localErrorListeners)
{
try {
errorListener(exception);
}
catch (Exception ex) {
UIWidgetsError.reportError(
new UIWidgetsErrorDetails(
context: "when reporting an error to an image listener",
library: "image resource service",
exception: ex
)
);
}
}
}
}
public IPromise precacheImage(
ImageProvider provider,
BuildContext context,
Size size = null,
ImageErrorListener onError = null
)
{
ImageConfiguration config = createLocalImageConfiguration(context, size: size);
var completer = new Promise();
ImageStream stream = provider.resolve(config);
void listener(ImageInfo image, bool sync)
{
completer.Resolve();
stream.removeListener(listener);
}
void errorListener(Exception exception)
{
completer.Resolve();
stream.removeListener(listener);
if (onError != null)
{
onError(exception);
}
else
{
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
context: "image failed to precache",
library: "image resource service",
exception: exception,
silent: true
));
}
}
stream.addListener(listener, onError: errorListener);
return(completer);
}
protected T invokeCallback <T>(string name, RecognizerCallback <T> callback, Func <string> debugReport = null)
{
D.assert(callback != null);
T result = default(T);
try {
D.assert(() => {
if (D.debugPrintRecognizerCallbacksTrace)
{
var report = debugReport != null ? debugReport() : null;
// The 19 in the line below is the width of the prefix used by
// _debugLogDiagnostic in arena.dart.
var prefix = D.debugPrintGestureArenaDiagnostics ? new string(' ', 19) + "❙ " : "";
Debug.LogFormat("{0}this calling {1} callback.{2}",
prefix, name, report.isNotEmpty() ? " " + report : "");
}
return(true);
});
result = callback();
}
catch (Exception ex) {
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: ex,
library: "gesture",
context: "while handling a gesture",
informationCollector: information => {
information.AppendLine("Handler: " + name);
information.AppendLine("Recognizer:");
information.AppendLine(" " + this);
}
));
}
return(result);
}
static void _reportOverflow(RenderObject renderObject, RelativeRect overflow, string overflowHints)
{
overflowHints = overflowHints ?? $"The edge of the {renderObject.GetType()} that is " +
"overflowing has been marked in the rendering with a yellow and black " +
"striped pattern. This is usually caused by the contents being too big " +
$"for the {renderObject.GetType()}.\n" +
"This is considered an error condition because it indicates that there " +
"is content that cannot be seen. If the content is legitimately bigger " +
"than the available space, consider clipping it with a ClipRect widget " +
$"before putting it in the {renderObject.GetType()}, or using a scrollable " +
"container, like a ListView.";
List <string> overflows = new List <string> {
};
if (overflow.left > 0.0f)
{
overflows.Add($"{_formatPixels(overflow.left)} pixels on the left");
}
if (overflow.top > 0.0f)
{
overflows.Add($"{_formatPixels(overflow.top)} pixels on the top");
}
if (overflow.bottom > 0.0f)
{
overflows.Add($"{_formatPixels(overflow.bottom)} pixels on the bottom");
}
if (overflow.right > 0.0f)
{
overflows.Add($"{_formatPixels(overflow.right)} pixels on the right");
}
string overflowText = "";
D.assert(overflows.isNotEmpty(),
() => $"Somehow {renderObject.GetType()} didn't actually overflow like it thought it did.");
switch (overflows.Count)
{
case 1:
overflowText = overflows.first();
break;
case 2:
overflowText = $"{overflows.first()} and {overflows.last()}";
break;
default:
overflows[overflows.Count - 1] = $"and {overflows[overflows.Count - 1]}";
overflowText = string.Join(", ", overflow);
break;
}
UIWidgetsError.reportError(
new UIWidgetsErrorDetails(
exception: new Exception($"A {renderObject.GetType()} overflowed by {overflowText}."),
library: "rendering library",
context: "during layout",
informationCollector: (information) => {
information.AppendLine(overflowHints);
information.AppendLine($"The specific {renderObject.GetType()} in question is:");
information.AppendLine($" {renderObject.toStringShallow(joiner: "\n ")}");
information.AppendLine(string.Concat(Enumerable.Repeat("◢◤", 32)));
}
)
);
}
public override void initState()
{
base.initState();
foreach (var observer in this.widget.observers)
{
D.assert(observer.navigator == null);
observer._navigator = this;
}
var initialRouteName = this.widget.initialRoute ?? Navigator.defaultRouteName;
if (initialRouteName.StartsWith("/") && initialRouteName.Length > 1)
{
initialRouteName = initialRouteName.Substring(1);
D.assert(Navigator.defaultRouteName == "/");
var plannedInitialRouteNames = new List <string> {
Navigator.defaultRouteName
};
var plannedInitialRoutes = new List <Route> {
this._routeNamed(Navigator.defaultRouteName, true)
};
var routeParts = initialRouteName.Split('/');
if (initialRouteName.isNotEmpty())
{
var routeName = "";
foreach (var part in routeParts)
{
routeName += $"/{part}";
plannedInitialRouteNames.Add(routeName);
plannedInitialRoutes.Add(this._routeNamed(routeName, true));
}
}
if (plannedInitialRoutes.Contains(null))
{
D.assert(() => {
UIWidgetsError.reportError(new UIWidgetsErrorDetails(
exception: new Exception(
"Could not navigate to initial route.\n" +
$"The requested route name was: \"{initialRouteName}\n" +
"The following routes were therefore attempted:\n" +
$" * {string.Join("\n * ", plannedInitialRouteNames)}\n" +
"This resulted in the following objects:\n" +
$" * {string.Join("\n * ", plannedInitialRoutes)}\n" +
"One or more of those objects was null, and therefore the initial route specified will be " +
$"ignored and \"{Navigator.defaultRouteName}\" will be used instead.")));
return(true);
});
this.push(this._routeNamed(Navigator.defaultRouteName));
}
else
{
plannedInitialRoutes.Each(route => { this.push(route); });
}
}
else
{
Route route = null;
if (initialRouteName != Navigator.defaultRouteName)
{
route = this._routeNamed(initialRouteName, true);
}
route = route ?? this._routeNamed(Navigator.defaultRouteName);
this.push(route);
}
foreach (var route in this._history)
{
this._initialOverlayEntries.AddRange(route.overlayEntries);
}
}