| Flutter macOS Embedder |

Instance Methods | List of all members
FlutterEmbedderKeyResponder Class Reference

`#import <FlutterEmbedderKeyResponder.h>`

Inheritance diagram for FlutterEmbedderKeyResponder:

## Instance Methods
(nonnull instancetype) | - initWithSendEvent:
(void) | - syncModifiersIfNeeded:timestamp:
(nonnull NSDictionary *) | - getPressedState
Instance Methods inherited from <FlutterKeyPrimaryResponder>
(void) | - handleEvent:callback:

## Additional Inherited Members
Properties inherited from <FlutterKeyPrimaryResponder>
NSMutableDictionary< NSNumber *, NSNumber * > * | layoutMap

## Detailed Description

A primary responder of |FlutterKeyboardManager| that handles events by sending the converted events through the embedder API.

This class communicates with the HardwareKeyboard API in the framework.

Definition at line 23 of file FlutterEmbedderKeyResponder.h.

## Method Documentation

## ◆ getPressedState

- (nonnull NSDictionary *) getPressedState |  |  |

Returns the keyboard pressed state.

Returns the keyboard pressed state. The dictionary contains one entry per pressed keys, mapping from the logical key to the physical key.

Definition at line 798 of file FlutterEmbedderKeyResponder.mm.

798 {
799 return [NSDictionary dictionaryWithDictionary:_pressingRecords];
800 }

Referenced by FlutterKeyboardManager::getPressedState.

## ◆ initWithSendEvent:

- (nonnull instancetype) initWithSendEvent: |  | (_Nonnull FlutterSendEmbedderKeyEvent) | sendEvent |

Create an instance by specifying the function to send converted events to.

The |sendEvent| is typically |FlutterEngine|'s |sendKeyEvent|.

## ◆ syncModifiersIfNeeded:timestamp:

- (void) syncModifiersIfNeeded: |  | (NSEventModifierFlags) | modifierFlags
timestamp: |  | (NSTimeInterval) | timestamp

Synthesize modifier keys events.

If needed, synthesize modifier keys up and down events by comparing their current pressing states with the given modifier flags.

Reimplemented from <FlutterKeyPrimaryResponder>.

Definition at line 785 of file FlutterEmbedderKeyResponder.mm.

785 :(NSEventModifierFlags)modifierFlags
786 timestamp:(NSTimeInterval)timestamp {
787 FlutterAsyncKeyCallback replyCallback = ^(BOOL handled) {
788 // Do nothing.
789 };
790 FlutterKeyCallbackGuard* guardedCallback =
791 [[FlutterKeyCallbackGuard alloc] initWithCallback:replyCallback];
792 [self synchronizeModifiers:modifierFlags
793 ignoringFlags:0
794 timestamp:timestamp
795 guard:guardedCallback];
796 }

The documentation for this class was generated from the following files:

- shell/platform/darwin/macos/framework/Source/FlutterEmbedderKeyResponder.h
- shell/platform/darwin/macos/framework/Source/FlutterEmbedderKeyResponder.mm

FlutterAsyncKeyCallback
void(^ FlutterAsyncKeyCallback)(BOOL handled)
Definition: FlutterKeyPrimaryResponder.h:10
FlutterKeyCallbackGuard
Definition: FlutterEmbedderKeyResponder.mm:267