public override Widget build(BuildContext context)
{
Widget navigator = null;
if (this._navigator != null)
{
navigator = new Navigator(
key: this._navigator,
initialRoute: this.widget.initialRoute ?? Navigator.defaultRouteName,
onGenerateRoute: this._onGenerateRoute,
onUnknownRoute: this._onUnknownRoute,
observers: this.widget.navigatorObservers
);
}
Widget result;
if (this.widget.builder != null)
{
result = new Builder(
builder: _context => { return(this.widget.builder(_context, navigator)); }
);
}
else
{
D.assert(navigator != null);
result = navigator;
}
if (this.widget.textStyle != null)
{
result = new DefaultTextStyle(
style: this.widget.textStyle,
child: result
);
}
PerformanceOverlay performanceOverlay = null;
if (this.widget.showPerformanceOverlay)
{
performanceOverlay = PerformanceOverlay.allEnabled();
}
if (performanceOverlay != null)
{
result = new Stack(
children: new List <Widget> {
result,
new Positioned(top: 0.0f,
left: 0.0f,
right: 0.0f,
child: performanceOverlay)
});
}
D.assert(() => {
if (WidgetInspectorService.instance.debugShowInspector)
{
result = new WidgetInspector(null, result, this._InspectorSelectButtonBuilder);
}
return(true);
});
result = new Directionality(child: result, TextDirection.ltr);
result = new WindowProvider(
window: this.widget.window,
child: result
);
Locale appLocale = this.widget.locale != null
? this._resolveLocales(new List <Locale> {
this.widget.locale
}, this.widget.supportedLocales)
: this._locale;
result = new MediaQuery(
data: MediaQueryData.fromWindow(this.widget.window),
child: new Localizations(
locale: appLocale,
delegates: this._localizationsDelegates,
child: result)
);
return(result);
}
public override Widget build(BuildContext context)
{
Widget navigator = null;
if (_navigator != null)
{
RouteListFactory routeListFactory = (state, route) => {
return(widget.onGenerateInitialRoutes(initialRoute: route));
};
navigator = new Navigator(
key: _navigator,
initialRoute: WidgetsBinding.instance.window.defaultRouteName != Navigator.defaultRouteName
? WidgetsBinding.instance.window.defaultRouteName
: widget.initialRoute ?? WidgetsBinding.instance.window.defaultRouteName,
onGenerateRoute: _onGenerateRoute,
onGenerateInitialRoutes: widget.onGenerateInitialRoutes == null
? Navigator.defaultGenerateInitialRoutes
: routeListFactory,
onUnknownRoute: _onUnknownRoute,
observers: widget.navigatorObservers
);
}
Widget result;
if (widget.builder != null)
{
result = new Builder(
builder: context1 => { return(widget.builder(context: context1, child: navigator)); });
}
else
{
D.assert(navigator != null);
result = navigator;
}
if (widget.textStyle != null)
{
result = new DefaultTextStyle(
style: widget.textStyle,
child: result
);
}
PerformanceOverlay performanceOverlay = null;
if (widget.showPerformanceOverlay || WidgetsApp.showPerformanceOverlayOverride)
{
performanceOverlay = PerformanceOverlay.allEnabled(
checkerboardRasterCacheImages: widget.checkerboardRasterCacheImages,
checkerboardOffscreenLayers: widget.checkerboardOffscreenLayers
);
}
else if (widget.checkerboardRasterCacheImages || widget.checkerboardOffscreenLayers)
{
performanceOverlay = new PerformanceOverlay(
checkerboardRasterCacheImages: widget.checkerboardRasterCacheImages,
checkerboardOffscreenLayers: widget.checkerboardOffscreenLayers
);
}
if (performanceOverlay != null)
{
result = new Stack(
children: new List <Widget> {
result,
new Positioned(top: 0.0f, left: 0.0f, right: 0.0f, child: performanceOverlay)
}
);
}
D.assert(() => {
if (widget.debugShowWidgetInspector || WidgetsApp.debugShowWidgetInspectorOverride)
{
result = new WidgetInspector(
child: result,
selectButtonBuilder: widget.inspectorSelectButtonBuilder
);
}
if (widget.debugShowCheckedModeBanner && WidgetsApp.debugAllowBannerOverride)
{
result = new CheckedModeBanner(
child: result
);
}
return(true);
});
//Fix Me !!
//TODO: the following line is a work-around for some potential TextDirection bug
//In the home page of the Shrine sample, the positions of the buttons are not correct, which is
//determined by the TextDirection of some widget. we should fix it!
result = new Directionality(child: result, TextDirection.ltr);
Widget title = null;
if (widget.onGenerateTitle != null)
{
title = new Builder(
builder: context2 => {
var _title = widget.onGenerateTitle(context: context2);
D.assert(_title != null, () => "onGenerateTitle must return a non-null String");
return(new Title(
title: _title,
color: widget.color,
child: result
));
}
);
}
else
{
title = new Title(
title: widget.title,
color: widget.color,
child: result
);
}
var appLocale = widget.locale != null
? _resolveLocales(new List <Locale> {
widget.locale
}, supportedLocales : widget.supportedLocales)
: _locale;
D.assert(_debugCheckLocalizations(appLocale: appLocale));
return(new Shortcuts(
shortcuts: widget.shortcuts ?? WidgetsApp.defaultShortcuts,
debugLabel: "<Default WidgetsApp Shortcuts>",
child: new Actions(
actions: widget.actions ?? WidgetsApp.defaultActions,
child: new FocusTraversalGroup(
policy: new ReadingOrderTraversalPolicy(),
child: new _MediaQueryFromWindow(
child: new Localizations(
locale: appLocale,
delegates: _localizationsDelegates.ToList(),
child: title
)
)
)
)
));
}