ShortcutRegistry class Null safety

A class used by ShortcutRegistrar that allows adding or removing shortcut bindings by descendants of the ShortcutRegistrar.

You can reach the nearest ShortcutRegistry using of and maybeOf.

The registry may be listened to (with addListener/removeListener) for change notifications when the registered shortcuts change.

Mixed in types

Constructors

ShortcutRegistry()

Properties

hashCode int
The hash code for this object.
read-only, inherited
hasListeners bool
Whether any listeners are currently registered.
@protected, read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
shortcuts Map<ShortcutActivator, Intent>
Gets the combined shortcut bindings from all contexts that are registered with this ShortcutRegistry, in addition to the bindings passed to ShortcutRegistry.
read-only

Methods

addAll(Map<ShortcutActivator, Intent> value) ShortcutRegistryEntry
Adds all the given shortcut bindings to this ShortcutRegistry, and returns a entry for managing those bindings.
addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
@mustCallSuper, inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
toString() String
A string representation of this object.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited

Static Methods

maybeOf(BuildContext context) ShortcutRegistry?
Returns ShortcutRegistry of the ShortcutRegistrar that most tightly encloses the given BuildContext.
of(BuildContext context) ShortcutRegistry
Returns the ShortcutRegistry that belongs to the ShortcutRegistrar which most tightly encloses the given BuildContext.