ShortcutRegistry class
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. Change notifications take place after the current frame is drawn, so that widgets that are not descendants of the registry can listen to it (e.g. in overlays).
- Mixed in types
Constructors
- ShortcutRegistry()
- Creates an instance of ShortcutRegistry.
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- hasListeners → bool
-
Whether any listeners are currently registered.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
-
shortcuts
→ Map<
ShortcutActivator, Intent> -
Gets the combined shortcut bindings from all contexts that are registered
with this ShortcutRegistry.
no setter
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).
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
notifyListeners(
) → void -
Call all the registered listeners.
inherited
-
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.