void _startHeroTransition( PageRoute from, PageRoute to, Animation <float> animation, HeroFlightDirection flightType, bool isUserGestureTransition ) { if (this.navigator == null || from.subtreeContext == null || to.subtreeContext == null) { to.offstage = false; // in case we set this in _maybeStartHeroTransition return; } Rect navigatorRect = HeroUtils._globalBoundingBoxFor(this.navigator.context); Dictionary <object, _HeroState> fromHeroes = Hero._allHeroesFor(from.subtreeContext, isUserGestureTransition, this.navigator); Dictionary <object, _HeroState> toHeroes = Hero._allHeroesFor(to.subtreeContext, isUserGestureTransition, this.navigator); to.offstage = false; foreach (object tag in fromHeroes.Keys) { if (toHeroes.ContainsKey(tag)) { HeroFlightShuttleBuilder fromShuttleBuilder = fromHeroes[tag].widget.flightShuttleBuilder; HeroFlightShuttleBuilder toShuttleBuilder = toHeroes[tag].widget.flightShuttleBuilder; _HeroFlightManifest manifest = new _HeroFlightManifest( type: flightType, overlay: this.navigator.overlay, navigatorRect: navigatorRect, fromRoute: from, toRoute: to, fromHero: fromHeroes[tag], toHero: toHeroes[tag], createRectTween: this.createRectTween, shuttleBuilder: toShuttleBuilder ?? fromShuttleBuilder ?? _defaultHeroFlightShuttleBuilder, isUserGestureTransition: isUserGestureTransition ); if (this._flights.TryGetValue(tag, out var result)) { result.divert(manifest); } else { this._flights[tag] = new _HeroFlight(this._handleFlightEnded); this._flights[tag].start(manifest); } } else if (this._flights.TryGetValue(tag, out var result)) { result.abort(); } } }
public _HeroFlightManifest( HeroFlightDirection type, OverlayState overlay, Rect navigatorRect, PageRoute fromRoute, PageRoute toRoute, _HeroState fromHero, _HeroState toHero, CreateRectTween createRectTween, HeroFlightShuttleBuilder shuttleBuilder, bool isUserGestureTransition ) { D.assert(fromHero.widget.tag == toHero.widget.tag); this.type = type; this.overlay = overlay; this.navigatorRect = navigatorRect; this.fromRoute = fromRoute; this.toRoute = toRoute; this.fromHero = fromHero; this.toHero = toHero; this.createRectTween = createRectTween; this.shuttleBuilder = shuttleBuilder; this.isUserGestureTransition = isUserGestureTransition; }
public _HeroFlightManifest( HeroFlightDirection type = default, OverlayState overlay = null, Rect navigatorRect = null, PageRoute fromRoute = null, PageRoute toRoute = null, _HeroState fromHero = null, _HeroState toHero = null, CreateRectTween createRectTween = null, HeroFlightShuttleBuilder shuttleBuilder = null, bool?isUserGestureTransition = null, bool?isDiverted = null ) { D.assert(fromHero.widget.tag.Equals(toHero.widget.tag)); this.type = type; this.overlay = overlay; this.navigatorRect = navigatorRect; this.fromRoute = fromRoute; this.toRoute = toRoute; this.fromHero = fromHero; this.toHero = toHero; this.createRectTween = createRectTween; this.shuttleBuilder = shuttleBuilder; this.isUserGestureTransition = isUserGestureTransition ?? false; this.isDiverted = isDiverted ?? false; }
public Hero( Key key = null, object tag = null, CreateRectTween createRectTween = null, HeroFlightShuttleBuilder flightShuttleBuilder = null, TransitionBuilder placeholderBuilder = null, bool transitionOnUserGestures = false, Widget child = null ) : base(key: key) { D.assert(tag != null); D.assert(child != null); this.tag = tag; this.createRectTween = createRectTween; this.child = child; this.flightShuttleBuilder = flightShuttleBuilder; this.placeholderBuilder = placeholderBuilder; this.transitionOnUserGestures = transitionOnUserGestures; }