TablePaneElement class
Methods
activate ()
→ void
Transition from the "inactive" to the "active" lifecycle state.
inherited
attachNotificationTree ()
→ void
Called in Element.mount and Element.activate to register this element in
the notification tree.
inherited
attachRenderObject (Object ? newSlot )
→ void
Add renderObject to the render tree at the location specified by newSlot
.
inherited
deactivate ()
→ void
Transition from the "active" to the "inactive" lifecycle state.
inherited
deactivateChild (Element child )
→ void
Move the given element to the list of inactive elements and detach its
render object from the render tree.
inherited
debugDeactivated ()
→ void
Called, in debug mode, after children have been deactivated (see deactivate ).
inherited
debugDescribeChildren ()
→ List <DiagnosticsNode >
Returns a list of DiagnosticsNode
objects describing this node's
children.
inherited
debugExpectsRenderObjectForSlot (Object ? slot )
→ bool
Whether the child in the provided slot
(or one of its descendants) must
insert a RenderObject into its ancestor RenderObjectElement by calling
RenderObjectElement.insertRenderObjectChild on it.
inherited
debugFillProperties (DiagnosticPropertiesBuilder properties )
→ void
Add additional properties associated with the node.
inherited
debugGetCreatorChain (int limit )
→ String
Returns a description of what caused this element to be created.
inherited
debugGetDiagnosticChain ()
→ List <Element >
Returns the parent chain from this element back to the root of the tree.
inherited
debugVisitOnstageChildren (ElementVisitor visitor )
→ void
Calls the argument for each child considered onstage.
inherited
dependOnInheritedElement (InheritedElement ancestor , {Object ? aspect })
→ InheritedWidget
Registers this build context with ancestor
such that when
ancestor
's widget changes this build context is rebuilt.
inherited
dependOnInheritedWidgetOfExactType <T extends InheritedWidget > ({Object ? aspect })
→ T?
Returns the nearest widget of the given type T
and creates a dependency
on it, or null if no appropriate widget is found.
inherited
describeElement (String name , {DiagnosticsTreeStyle style = DiagnosticsTreeStyle.errorProperty })
→ DiagnosticsNode
Returns a description of the Element associated with the current build context.
inherited
describeMissingAncestor ({required Type expectedAncestorType })
→ List <DiagnosticsNode >
Adds a description of a specific type of widget missing from the current
build context's ancestry tree.
inherited
describeOwnershipChain (String name )
→ DiagnosticsNode
Adds a description of the ownership chain from a specific Element
to the error report.
inherited
describeWidget (String name , {DiagnosticsTreeStyle style = DiagnosticsTreeStyle.errorProperty })
→ DiagnosticsNode
Returns a description of the Widget associated with the current build context.
inherited
detachRenderObject ()
→ void
Remove renderObject from the render tree.
inherited
didChangeDependencies ()
→ void
Called when a dependency of this element changes.
inherited
dispatchNotification (Notification notification )
→ void
Start bubbling this notification at the given build context.
inherited
doesDependOnInheritedElement (InheritedElement ancestor )
→ bool
Returns true
if dependOnInheritedElement was previously called with ancestor
.
inherited
findAncestorRenderObjectOfType <T extends RenderObject > ()
→ T?
Returns the RenderObject object of the nearest ancestor RenderObjectWidget widget
that is an instance of the given type T
.
inherited
findAncestorStateOfType <T extends State <StatefulWidget > > ()
→ T?
Returns the State object of the nearest ancestor StatefulWidget widget
that is an instance of the given type T
.
inherited
findAncestorWidgetOfExactType <T extends Widget > ()
→ T?
Returns the nearest ancestor widget of the given type T
, which must be the
type of a concrete Widget subclass.
inherited
findRenderObject ()
→ RenderObject ?
The current RenderObject for the widget. If the widget is a
RenderObjectWidget , this is the render object that the widget created
for itself. Otherwise, it is the render object of the first descendant
RenderObjectWidget .
inherited
findRootAncestorStateOfType <T extends State <StatefulWidget > > ()
→ T?
Returns the State object of the furthest ancestor StatefulWidget widget
that is an instance of the given type T
.
inherited
forgetChild (Element child )
→ void
Remove the given child from the element's child list, in preparation for
the child being reused elsewhere in the element tree.
inherited
getElementForInheritedWidgetOfExactType <T extends InheritedWidget > ()
→ InheritedElement ?
Obtains the element corresponding to the nearest widget of the given type T
,
which must be the type of a concrete InheritedWidget subclass.
inherited
getInheritedWidgetOfExactType <T extends InheritedWidget > ()
→ T?
Returns the nearest widget of the given InheritedWidget subclass T
or
null if an appropriate ancestor is not found.
inherited
inflateWidget (Widget newWidget , Object ? newSlot )
→ Element
Create an element for the given widget and add it as a child of this
element in the given slot.
inherited
insertRenderObjectChild (covariant RenderObject child , covariant IndexedSlot <Element ? > slot )
→ void
Insert the given child into renderObject at the given slot.
inherited
markNeedsBuild ()
→ void
Marks the element as dirty and adds it to the global list of widgets to
rebuild in the next frame.
inherited
mount (Element ? parent , Object ? newSlot )
→ void
Add this element to the tree in the given slot of the given parent.
inherited
moveRenderObjectChild (covariant RenderObject child , covariant IndexedSlot <Element ? > oldSlot , covariant IndexedSlot <Element ? > newSlot )
→ void
Move the given child from the given old slot to the given new slot.
inherited
noSuchMethod (Invocation invocation )
→ dynamic
Invoked when a nonexistent method or property is accessed.
inherited
performRebuild ()
→ void
Cause the widget to update itself.
inherited
reassemble ()
→ void
Called whenever the application is reassembled during debugging, for
example during hot reload.
inherited
rebuild ({bool force = false })
→ void
Cause the widget to update itself. In debug builds, also verify various
invariants.
inherited
removeRenderObjectChild (covariant RenderObject child , covariant Object ? slot )
→ void
Remove the given child from renderObject .
inherited
toDiagnosticsNode ({String ? name , DiagnosticsTreeStyle ? style })
→ DiagnosticsNode
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep .
inherited
toString ({DiagnosticLevel minLevel = DiagnosticLevel.info })
→ String
A string representation of this object.
inherited
toStringDeep ({String prefixLineOne = '' , String ? prefixOtherLines , DiagnosticLevel minLevel = DiagnosticLevel.debug })
→ String
Returns a string representation of this node and its descendants.
inherited
toStringShallow ({String joiner = ', ' , DiagnosticLevel minLevel = DiagnosticLevel.debug })
→ String
Returns a one-line detailed description of the object.
inherited
toStringShort ()
→ String
A short, textual description of this element.
inherited
unmount ()
→ void
Transition from the "inactive" to the "defunct" lifecycle state.
inherited
update (covariant MultiChildRenderObjectWidget newWidget )
→ void
Change the widget used to configure this element.
inherited
updateChild (Element ? child , Widget ? newWidget , Object ? newSlot )
→ Element ?
Update the given child with the given new configuration.
inherited
updateChildren (List <Element > oldChildren , List <Widget > newWidgets , {Set <Element > ? forgottenChildren , List <Object ? > ? slots })
→ List <Element >
Updates the children of this element to use new widgets.
inherited
updateSlot (Object ? newSlot )
→ void
Called by updateSlotForChild when the framework needs to change the slot
that this Element occupies in its ancestor.
inherited
updateSlotForChild (Element child , Object ? newSlot )
→ void
Change the slot that the given child occupies in its parent.
inherited
visitAncestorElements (ConditionalElementVisitor visitor )
→ void
Walks the ancestor chain, starting with the parent of this build context's
widget, invoking the argument for each ancestor.
inherited
visitChildElements (ElementVisitor visitor )
→ void
Wrapper around visitChildren for BuildContext .
inherited
visitChildren (ElementVisitor visitor )
→ void
Calls the argument for each child. Must be overridden by subclasses that
support having children.
inherited