Widget _buildLeftWidget(BuildContext context)
{
ModalRoute parentRoute = ModalRoute.of(context: context);
bool canPop = parentRoute?.canPop ?? false;
if (canPop)
{
return(new CustomButton(
padding: EdgeInsets.only(16, 10, 16, 10),
onPressed: () => {
if (this.onBack != null)
{
this.onBack();
}
else
{
if (Router.navigator.canPop())
{
Router.navigator.pop();
}
}
},
child: new Icon(
icon: Icons.arrow_back,
size: 24,
color: CColors.Icon
)
));
}
return(new Container(width: 56));
}
void _ensureHistoryEntry()
{
if (this._historyEntry == null)
{
ModalRoute route = ModalRoute.of(this.context);
if (route != null)
{
this._historyEntry = new LocalHistoryEntry(onRemove: this._handleHistoryEntryRemoved);
route.addLocalHistoryEntry(this._historyEntry);
FocusScope.of(this.context).setFirstFocus(this._focusScopeNode);
}
}
}
public override void didChangeDependencies()
{
base.didChangeDependencies();
Router.routeObserve.subscribe(this, (PageRoute)ModalRoute.of(context: this.context));
}
public override Widget build(BuildContext context)
{
D.assert(MaterialD.debugCheckHasMaterialLocalizations(context));
ThemeData themeData = Theme.of(context);
ScaffoldState scaffold = Scaffold.of(context, nullOk: true);
ModalRoute parentRoute = ModalRoute.of(context);
bool hasDrawer = scaffold?.hasDrawer ?? false;
bool hasEndDrawer = scaffold?.hasEndDrawer ?? false;
bool canPop = parentRoute?.canPop ?? false;
bool useCloseButton = parentRoute is PageRoute && ((PageRoute)parentRoute).fullscreenDialog;
IconThemeData appBarIconTheme = this.widget.iconTheme ?? themeData.primaryIconTheme;
TextStyle centerStyle = this.widget.textTheme?.title ?? themeData.primaryTextTheme.title;
TextStyle sideStyle = this.widget.textTheme?.body1 ?? themeData.primaryTextTheme.body1;
if (this.widget.toolbarOpacity != 1.0f)
{
float opacity =
new Interval(0.25f, 1.0f, curve: Curves.fastOutSlowIn).transform(this.widget.toolbarOpacity);
if (centerStyle?.color != null)
{
centerStyle = centerStyle.copyWith(color: centerStyle.color.withOpacity(opacity));
}
if (sideStyle?.color != null)
{
sideStyle = sideStyle.copyWith(color: sideStyle.color.withOpacity(opacity));
}
appBarIconTheme = appBarIconTheme.copyWith(
opacity: opacity * (appBarIconTheme.opacity ?? 1.0f)
);
}
Widget leading = this.widget.leading;
if (leading == null && this.widget.automaticallyImplyLeading)
{
if (hasDrawer)
{
leading = new IconButton(
icon: new Icon(Icons.menu),
onPressed: this._handleDrawerButton,
tooltip: MaterialLocalizations.of(context).openAppDrawerTooltip);
}
else
{
if (canPop)
{
leading = useCloseButton ? (Widget) new CloseButton() : new BackButton();
}
}
}
if (leading != null)
{
leading = new ConstrainedBox(
constraints: BoxConstraints.tightFor(width: AppBarUtils._kLeadingWidth),
child: leading);
}
Widget title = this.widget.title;
if (title != null)
{
title = new DefaultTextStyle(
style: centerStyle,
softWrap: false,
overflow: TextOverflow.ellipsis,
child: title);
}
Widget actions = null;
if (this.widget.actions != null && this.widget.actions.isNotEmpty())
{
actions = new Row(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: this.widget.actions);
}
else if (hasEndDrawer)
{
actions = new IconButton(
icon: new Icon(Icons.menu),
onPressed: this._handleDrawerButtonEnd,
tooltip: MaterialLocalizations.of(context).openAppDrawerTooltip);
}
Widget toolbar = new NavigationToolbar(
leading: leading,
middle: title,
trailing: actions,
centerMiddle: this.widget._getEffectiveCenterTitle(themeData).Value,
middleSpacing: this.widget.titleSpacing);
Widget appBar = new ClipRect(
child: new CustomSingleChildLayout(
layoutDelegate: new _ToolbarContainerLayout(),
child: IconTheme.merge(
data: appBarIconTheme,
child: new DefaultTextStyle(
style: sideStyle,
child: toolbar)
)
)
);
if (this.widget.bottom != null)
{
appBar = new Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: new List <Widget> {
new Flexible(
child: new ConstrainedBox(
constraints: new BoxConstraints(maxHeight: Constants.kToolbarHeight),
child: appBar
)
),
this.widget.bottomOpacity == 1.0f
? (Widget)this.widget.bottom
: new Opacity(
opacity: new Interval(0.25f, 1.0f, curve: Curves.fastOutSlowIn).transform(this.widget
.bottomOpacity),
child: this.widget.bottom
)
}
);
}
if (this.widget.primary)
{
appBar = new SafeArea(
top: true,
child: appBar);
}
appBar = new Align(
alignment: Alignment.topCenter,
child: appBar);
if (this.widget.flexibleSpace != null)
{
appBar = new Stack(
fit: StackFit.passthrough,
children: new List <Widget> {
this.widget.flexibleSpace,
appBar
}
);
}
Brightness brightness = this.widget.brightness ?? themeData.primaryColorBrightness;
SystemUiOverlayStyle overlayStyle = brightness == Brightness.dark
? SystemUiOverlayStyle.light
: SystemUiOverlayStyle.dark;
return(new AnnotatedRegion <SystemUiOverlayStyle>(
value: overlayStyle,
child: new Material(
color: this.widget.backgroundColor ?? themeData.primaryColor,
elevation: this.widget.elevation,
child: appBar
)));
}
public new static ShrineOrderRoute of(BuildContext context)
{
return((ShrineOrderRoute)ModalRoute.of(context));
}
