public static Future <T> showGeneralDialog <T>(
BuildContext context = null,
RoutePageBuilder pageBuilder = null,
bool?barrierDismissible = null,
string barrierLabel = null,
Color barrierColor = null,
TimeSpan?transitionDuration = null,
RouteTransitionsBuilder transitionBuilder = null,
bool useRootNavigator = true,
RouteSettings routeSettings = null
)
{
//D.assert(!barrierDismissible || barrierLabel != null);
D.assert(pageBuilder != null);
return(Navigator.of(context, rootNavigator: true).push(
new _DialogRoute(
pageBuilder: pageBuilder,
barrierDismissible: barrierDismissible ?? false,
barrierLabel: barrierLabel,
barrierColor: barrierColor,
transitionDuration: transitionDuration,
transitionBuilder: transitionBuilder,
settings: routeSettings) as Route
).to <T>());
}
_allHeroesFor(BuildContext context, bool isUserGestureTransition, NavigatorState navigator)
{
D.assert(context != null);
D.assert(navigator != null);
Dictionary <object, _HeroState> result = new Dictionary <object, _HeroState> {
};
void addHero(StatefulElement hero, object tag)
{
D.assert(() => {
if (result.ContainsKey(tag))
{
throw new UIWidgetsError(
"There are multiple heroes that share the same tag within a subtree.\n" +
"Within each subtree for which heroes are to be animated (typically a PageRoute subtree), " +
"each Hero must have a unique non-null tag.\n" +
$"In this case, multiple heroes had the following tag: {tag}\n" +
"Here is the subtree for one of the offending heroes:\n" +
$"{hero.toStringDeep(prefixLineOne: "# ")}"
);
}
return(true);
});
_HeroState heroState = (_HeroState)hero.state;
result[tag] = heroState;
}
void visitor(Element element)
{
if (element.widget is Hero)
{
StatefulElement hero = (StatefulElement)element;
Hero heroWidget = (Hero)element.widget;
if (!isUserGestureTransition || heroWidget.transitionOnUserGestures)
{
object tag = heroWidget.tag;
D.assert(tag != null);
if (Navigator.of(hero) == navigator)
{
addHero(hero, tag);
}
else
{
ModalRoute heroRoute = ModalRoute.of(hero);
if (heroRoute != null && heroRoute is PageRoute && heroRoute.isCurrent)
{
addHero(hero, tag);
}
}
}
}
element.visitChildren(visitor);
}
context.visitChildElements(visitor);
return(result);
}
public static IPromise <object> showGeneralDialog(
BuildContext context = null,
RoutePageBuilder pageBuilder = null,
bool barrierDismissible = false,
Color barrierColor = null,
TimeSpan?transitionDuration = null,
RouteTransitionsBuilder transitionBuilder = null
)
{
D.assert(pageBuilder != null);
return(Navigator.of(context, rootNavigator: true).push(new _DialogRoute(
pageBuilder: pageBuilder,
barrierDismissible: barrierDismissible,
barrierColor: barrierColor,
transitionDuration: transitionDuration,
transitionBuilder: transitionBuilder
)));
}
public static void removeRoute(BuildContext context, Route route)
{
Navigator.of(context).removeRoute(route);
}
public static void popUntil(BuildContext context, RoutePredicate predicate)
{
Navigator.of(context).popUntil(predicate);
}
public static bool pop(BuildContext context, object result = null)
{
return(Navigator.of(context).pop(result));
}
public static IPromise <bool> maybePop(BuildContext context, object result = null)
{
return(Navigator.of(context).maybePop(result));
}
public static bool canPop(BuildContext context)
{
NavigatorState navigator = Navigator.of(context, nullOk: true);
return(navigator != null && navigator.canPop());
}
public static void replaceRouteBelow(BuildContext context, Route anchorRoute = null, Route newRoute = null)
{
D.assert(anchorRoute != null);
D.assert(newRoute != null);
Navigator.of(context).replaceRouteBelow(anchorRoute: anchorRoute, newRoute: newRoute);
}
public static IPromise <object> pushAndRemoveUntil(BuildContext context, Route newRoute,
RoutePredicate predicate)
{
return(Navigator.of(context).pushAndRemoveUntil(newRoute, predicate));
}
public static IPromise <object> pushReplacement(BuildContext context, Route newRoute, object result = null)
{
return(Navigator.of(context).pushReplacement(newRoute, result));
}
public static IPromise <object> push(BuildContext context, Route route)
{
return(Navigator.of(context).push(route));
}
public static IPromise <object> popAndPushNamed(BuildContext context, string routeName, object result = null)
{
return(Navigator.of(context).popAndPushNamed(routeName, result: result));
}
public static IPromise <object> pushNamed(BuildContext context, string routeName)
{
return(Navigator.of(context).pushNamed(routeName));
}
static void removeRouteBelow(BuildContext context, Route anchorRoute)
{
Navigator.of(context).removeRouteBelow(anchorRoute);
}
public static void replace(BuildContext context, Route oldRoute = null, Route newRoute = null)
{
D.assert(oldRoute != null);
D.assert(newRoute != null);
Navigator.of(context).replace(oldRoute: oldRoute, newRoute: newRoute);
}
internal static Dictionary <object, _HeroState> _allHeroesFor(
BuildContext context,
bool isUserGestureTransition,
NavigatorState navigator)
{
D.assert(context != null);
D.assert(navigator != null);
Dictionary <object, _HeroState> result = new Dictionary <object, _HeroState> {
};
void inviteHero(StatefulElement hero, object tag)
{
D.assert(() => {
if (result.ContainsKey(tag))
{
throw new UIWidgetsError(
new List <DiagnosticsNode>()
{
new ErrorSummary("There are multiple heroes that share the same tag within a subtree."),
new ErrorDescription(
"Within each subtree for which heroes are to be animated (i.e. a PageRoute subtree), " +
"each Hero must have a unique non-null tag.\n" +
$"In this case, multiple heroes had the following tag: {tag}\n"
),
new DiagnosticsProperty <StatefulElement>("Here is the subtree for one of the offending heroes", hero, linePrefix: "# ", style: DiagnosticsTreeStyle.dense),
});
}
return(true);
});
Hero heroWidget = hero.widget as Hero;
_HeroState heroState = hero.state as _HeroState;
if (!isUserGestureTransition || heroWidget.transitionOnUserGestures)
{
result[tag] = heroState;
}
else
{
heroState.ensurePlaceholderIsHidden();
}
}
void visitor(Element element)
{
Widget widget = element.widget;
if (widget is Hero)
{
StatefulElement hero = element as StatefulElement;
object tag = ((Hero)widget).tag;
D.assert(tag != null);
if (Navigator.of(hero) == navigator)
{
inviteHero(hero, tag);
}
else
{
ModalRoute heroRoute = ModalRoute.of(hero);
if (heroRoute != null && heroRoute is PageRoute && heroRoute.isCurrent)
{
inviteHero(hero, tag);
}
}
}
element.visitChildren(visitor);
}
context.visitChildElements(visitor);
return(result);
}