| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #import "flutter/shell/platform/darwin/macos/framework/Headers/FlutterViewController.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterViewController_Internal.h" |
| |
| #import "flutter/shell/platform/darwin/common/framework/Headers/FlutterChannels.h" |
| #import "flutter/shell/platform/darwin/common/framework/Headers/FlutterCodecs.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Headers/FlutterAppDelegate.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Headers/FlutterEngine.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterChannelKeyResponder.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterEmbedderKeyResponder.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterEngine_Internal.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterKeyPrimaryResponder.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterKeyboardManager.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterMetalRenderer.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterMouseCursorPlugin.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterOpenGLRenderer.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterRenderingBackend.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterTextInputSemanticsObject.h" |
| #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterView.h" |
| #import "flutter/shell/platform/embedder/embedder.h" |
| |
| namespace { |
| |
| /// Clipboard plain text format. |
| constexpr char kTextPlainFormat[] = "text/plain"; |
| |
| /// The private notification for voice over. |
| static NSString* const EnhancedUserInterfaceNotification = |
| @"NSApplicationDidChangeAccessibilityEnhancedUserInterfaceNotification"; |
| static NSString* const EnhancedUserInterfaceKey = @"AXEnhancedUserInterface"; |
| |
| /** |
| * State tracking for mouse events, to adapt between the events coming from the system and the |
| * events that the embedding API expects. |
| */ |
| struct MouseState { |
| /** |
| * Whether or not a kAdd event has been sent (or sent again since the last kRemove if tracking is |
| * enabled). Used to determine whether to send a kAdd event before sending an incoming mouse |
| * event, since Flutter expects pointers to be added before events are sent for them. |
| */ |
| bool flutter_state_is_added = false; |
| |
| /** |
| * Whether or not a kDown has been sent since the last kAdd/kUp. |
| */ |
| bool flutter_state_is_down = false; |
| |
| /** |
| * Whether or not mouseExited: was received while a button was down. Cocoa's behavior when |
| * dragging out of a tracked area is to send an exit, then keep sending drag events until the last |
| * button is released. Flutter doesn't expect to receive events after a kRemove, so the kRemove |
| * for the exit needs to be delayed until after the last mouse button is released. If cursor |
| * returns back to the window while still dragging, the flag is cleared in mouseEntered:. |
| */ |
| bool has_pending_exit = false; |
| |
| /** |
| * The currently pressed buttons, as represented in FlutterPointerEvent. |
| */ |
| int64_t buttons = 0; |
| |
| /** |
| * Resets all state to default values. |
| */ |
| void Reset() { |
| flutter_state_is_added = false; |
| flutter_state_is_down = false; |
| has_pending_exit = false; |
| buttons = 0; |
| } |
| }; |
| |
| } // namespace |
| |
| #pragma mark - Private interface declaration. |
| |
| /** |
| * FlutterViewWrapper is a convenience class that wraps a FlutterView and provides |
| * a mechanism to attach AppKit views such as FlutterTextField without affecting |
| * the accessibility subtree of the wrapped FlutterView itself. |
| * |
| * The FlutterViewController uses this class to create its content view. When |
| * any of the accessibility services (e.g. VoiceOver) is turned on, the accessibility |
| * bridge creates FlutterTextFields that interact with the service. The bridge has to |
| * attach the FlutterTextField somewhere in the view hierarchy in order for the |
| * FlutterTextField to interact correctly with VoiceOver. Those FlutterTextFields |
| * will be attached to this view so that they won't affect the accessibility subtree |
| * of FlutterView. |
| */ |
| @interface FlutterViewWrapper : NSView |
| |
| @end |
| |
| /** |
| * Private interface declaration for FlutterViewController. |
| */ |
| @interface FlutterViewController () <FlutterViewReshapeListener> |
| |
| /** |
| * The tracking area used to generate hover events, if enabled. |
| */ |
| @property(nonatomic) NSTrackingArea* trackingArea; |
| |
| /** |
| * The current state of the mouse and the sent mouse events. |
| */ |
| @property(nonatomic) MouseState mouseState; |
| |
| /** |
| * Event monitor for keyUp events. |
| */ |
| @property(nonatomic) id keyUpMonitor; |
| |
| /** |
| * Pointer to a keyboard manager, a hub that manages how key events are |
| * dispatched to various Flutter key responders, and whether the event is |
| * propagated to the next NSResponder. |
| */ |
| @property(nonatomic) FlutterKeyboardManager* keyboardManager; |
| |
| /** |
| * Starts running |engine|, including any initial setup. |
| */ |
| - (BOOL)launchEngine; |
| |
| /** |
| * Updates |trackingArea| for the current tracking settings, creating it with |
| * the correct mode if tracking is enabled, or removing it if not. |
| */ |
| - (void)configureTrackingArea; |
| |
| /** |
| * Creates and registers plugins used by this view controller. |
| */ |
| - (void)addInternalPlugins; |
| |
| /** |
| * Calls dispatchMouseEvent:phase: with a phase determined by self.mouseState. |
| * |
| * mouseState.buttons should be updated before calling this method. |
| */ |
| - (void)dispatchMouseEvent:(nonnull NSEvent*)event; |
| |
| /** |
| * Converts |event| to a FlutterPointerEvent with the given phase, and sends it to the engine. |
| */ |
| - (void)dispatchMouseEvent:(nonnull NSEvent*)event phase:(FlutterPointerPhase)phase; |
| |
| /** |
| * Initializes the KVO for user settings and passes the initial user settings to the engine. |
| */ |
| - (void)sendInitialSettings; |
| |
| /** |
| * Responds to updates in the user settings and passes this data to the engine. |
| */ |
| - (void)onSettingsChanged:(NSNotification*)notification; |
| |
| /** |
| * Responds to updates in accessibility. |
| */ |
| - (void)onAccessibilityStatusChanged:(NSNotification*)notification; |
| |
| /** |
| * Handles messages received from the Flutter engine on the _*Channel channels. |
| */ |
| - (void)handleMethodCall:(FlutterMethodCall*)call result:(FlutterResult)result; |
| |
| /** |
| * Plays a system sound. |soundType| specifies which system sound to play. Valid |
| * values can be found in the SystemSoundType enum in the services SDK package. |
| */ |
| - (void)playSystemSound:(NSString*)soundType; |
| |
| /** |
| * Reads the data from the clipboard. |format| specifies the media type of the |
| * data to obtain. |
| */ |
| - (NSDictionary*)getClipboardData:(NSString*)format; |
| |
| /** |
| * Clears contents and writes new data into clipboard. |data| is a dictionary where |
| * the keys are the type of data, and tervalue the data to be stored. |
| */ |
| - (void)setClipboardData:(NSDictionary*)data; |
| |
| /** |
| * Returns true iff the clipboard contains nonempty string data. |
| */ |
| - (BOOL)clipboardHasStrings; |
| |
| @end |
| |
| #pragma mark - FlutterViewWrapper implementation. |
| |
| @implementation FlutterViewWrapper { |
| FlutterView* _flutterView; |
| } |
| |
| - (instancetype)initWithFlutterView:(FlutterView*)view { |
| self = [super initWithFrame:NSZeroRect]; |
| if (self) { |
| _flutterView = view; |
| view.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable; |
| [self addSubview:view]; |
| } |
| return self; |
| } |
| |
| - (NSArray*)accessibilityChildren { |
| return @[ _flutterView ]; |
| } |
| |
| @end |
| |
| #pragma mark - FlutterViewController implementation. |
| |
| @implementation FlutterViewController { |
| // The project to run in this controller's engine. |
| FlutterDartProject* _project; |
| |
| // A message channel for sending user settings to the flutter engine. |
| FlutterBasicMessageChannel* _settingsChannel; |
| |
| // A method channel for miscellaneous platform functionality. |
| FlutterMethodChannel* _platformChannel; |
| } |
| |
| @dynamic view; |
| |
| /** |
| * Performs initialization that's common between the different init paths. |
| */ |
| static void CommonInit(FlutterViewController* controller) { |
| if (!controller->_engine) { |
| controller->_engine = [[FlutterEngine alloc] initWithName:@"io.flutter" |
| project:controller->_project |
| allowHeadlessExecution:NO]; |
| } |
| controller->_mouseTrackingMode = FlutterMouseTrackingModeInKeyWindow; |
| controller->_textInputPlugin = [[FlutterTextInputPlugin alloc] initWithViewController:controller]; |
| NSNotificationCenter* center = [NSNotificationCenter defaultCenter]; |
| // macOS fires this private message when VoiceOver turns on or off. |
| [center addObserver:controller |
| selector:@selector(onAccessibilityStatusChanged:) |
| name:EnhancedUserInterfaceNotification |
| object:nil]; |
| } |
| |
| - (instancetype)initWithCoder:(NSCoder*)coder { |
| self = [super initWithCoder:coder]; |
| NSAssert(self, @"Super init cannot be nil"); |
| |
| CommonInit(self); |
| return self; |
| } |
| |
| - (instancetype)initWithNibName:(NSString*)nibNameOrNil bundle:(NSBundle*)nibBundleOrNil { |
| self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; |
| NSAssert(self, @"Super init cannot be nil"); |
| |
| CommonInit(self); |
| return self; |
| } |
| |
| - (instancetype)initWithProject:(nullable FlutterDartProject*)project { |
| self = [super initWithNibName:nil bundle:nil]; |
| NSAssert(self, @"Super init cannot be nil"); |
| |
| _project = project; |
| CommonInit(self); |
| return self; |
| } |
| |
| - (instancetype)initWithEngine:(nonnull FlutterEngine*)engine |
| nibName:(nullable NSString*)nibName |
| bundle:(nullable NSBundle*)nibBundle { |
| NSAssert(engine != nil, @"Engine is required"); |
| self = [super initWithNibName:nibName bundle:nibBundle]; |
| if (self) { |
| if (engine.viewController) { |
| NSLog(@"The supplied FlutterEngine %@ is already used with FlutterViewController " |
| "instance %@. One instance of the FlutterEngine can only be attached to one " |
| "FlutterViewController at a time. Set FlutterEngine.viewController " |
| "to nil before attaching it to another FlutterViewController.", |
| [engine description], [engine.viewController description]); |
| } |
| _engine = engine; |
| CommonInit(self); |
| [engine setViewController:self]; |
| } |
| |
| return self; |
| } |
| |
| - (void)loadView { |
| FlutterView* flutterView; |
| if ([FlutterRenderingBackend renderUsingMetal]) { |
| FlutterMetalRenderer* metalRenderer = reinterpret_cast<FlutterMetalRenderer*>(_engine.renderer); |
| id<MTLDevice> device = metalRenderer.device; |
| id<MTLCommandQueue> commandQueue = metalRenderer.commandQueue; |
| if (!device || !commandQueue) { |
| NSLog(@"Unable to create FlutterView; no MTLDevice or MTLCommandQueue available."); |
| return; |
| } |
| flutterView = [[FlutterView alloc] initWithMTLDevice:device |
| commandQueue:commandQueue |
| reshapeListener:self]; |
| } else { |
| FlutterOpenGLRenderer* openGLRenderer = |
| reinterpret_cast<FlutterOpenGLRenderer*>(_engine.renderer); |
| NSOpenGLContext* mainContext = openGLRenderer.openGLContext; |
| if (!mainContext) { |
| NSLog(@"Unable to create FlutterView; no GL context available."); |
| return; |
| } |
| flutterView = [[FlutterView alloc] initWithMainContext:mainContext reshapeListener:self]; |
| } |
| FlutterViewWrapper* wrapperView = [[FlutterViewWrapper alloc] initWithFlutterView:flutterView]; |
| self.view = wrapperView; |
| _flutterView = flutterView; |
| } |
| |
| - (void)viewDidLoad { |
| [self configureTrackingArea]; |
| } |
| |
| - (void)viewWillAppear { |
| [super viewWillAppear]; |
| if (!_engine.running) { |
| [self launchEngine]; |
| } |
| [self listenForMetaModifiedKeyUpEvents]; |
| } |
| |
| - (void)viewWillDisappear { |
| // Per Apple's documentation, it is discouraged to call removeMonitor: in dealloc, and it's |
| // recommended to be called earlier in the lifecycle. |
| [NSEvent removeMonitor:_keyUpMonitor]; |
| _keyUpMonitor = nil; |
| } |
| |
| - (void)dealloc { |
| _engine.viewController = nil; |
| } |
| |
| #pragma mark - Public methods |
| |
| - (void)setMouseTrackingMode:(FlutterMouseTrackingMode)mode { |
| if (_mouseTrackingMode == mode) { |
| return; |
| } |
| _mouseTrackingMode = mode; |
| [self configureTrackingArea]; |
| } |
| |
| #pragma mark - Private methods |
| |
| - (BOOL)launchEngine { |
| // Register internal plugins before starting the engine. |
| [self addInternalPlugins]; |
| |
| _engine.viewController = self; |
| if (![_engine runWithEntrypoint:nil]) { |
| return NO; |
| } |
| // Send the initial user settings such as brightness and text scale factor |
| // to the engine. |
| // TODO(stuartmorgan): Move this logic to FlutterEngine. |
| [self sendInitialSettings]; |
| return YES; |
| } |
| |
| // macOS does not call keyUp: on a key while the command key is pressed. This results in a loss |
| // of a key event once the modified key is released. This method registers the |
| // ViewController as a listener for a keyUp event before it's handled by NSApplication, and should |
| // NOT modify the event to avoid any unexpected behavior. |
| - (void)listenForMetaModifiedKeyUpEvents { |
| NSAssert(_keyUpMonitor == nil, @"_keyUpMonitor was already created"); |
| FlutterViewController* __weak weakSelf = self; |
| _keyUpMonitor = [NSEvent |
| addLocalMonitorForEventsMatchingMask:NSEventMaskKeyUp |
| handler:^NSEvent*(NSEvent* event) { |
| // Intercept keyUp only for events triggered on the current |
| // view. |
| if (weakSelf.viewLoaded && weakSelf.flutterView && |
| ([[event window] firstResponder] == |
| weakSelf.flutterView) && |
| ([event modifierFlags] & NSEventModifierFlagCommand) && |
| ([event type] == NSEventTypeKeyUp)) |
| [weakSelf keyUp:event]; |
| return event; |
| }]; |
| } |
| |
| - (void)configureTrackingArea { |
| if (!self.viewLoaded) { |
| // The viewDidLoad will call configureTrackingArea again when |
| // the view is actually loaded. |
| return; |
| } |
| if (_mouseTrackingMode != FlutterMouseTrackingModeNone && self.flutterView) { |
| NSTrackingAreaOptions options = NSTrackingMouseEnteredAndExited | NSTrackingMouseMoved | |
| NSTrackingInVisibleRect | NSTrackingEnabledDuringMouseDrag; |
| switch (_mouseTrackingMode) { |
| case FlutterMouseTrackingModeInKeyWindow: |
| options |= NSTrackingActiveInKeyWindow; |
| break; |
| case FlutterMouseTrackingModeInActiveApp: |
| options |= NSTrackingActiveInActiveApp; |
| break; |
| case FlutterMouseTrackingModeAlways: |
| options |= NSTrackingActiveAlways; |
| break; |
| default: |
| NSLog(@"Error: Unrecognized mouse tracking mode: %ld", _mouseTrackingMode); |
| return; |
| } |
| _trackingArea = [[NSTrackingArea alloc] initWithRect:NSZeroRect |
| options:options |
| owner:self |
| userInfo:nil]; |
| [self.flutterView addTrackingArea:_trackingArea]; |
| } else if (_trackingArea) { |
| [self.flutterView removeTrackingArea:_trackingArea]; |
| _trackingArea = nil; |
| } |
| } |
| |
| - (void)addInternalPlugins { |
| __weak FlutterViewController* weakSelf = self; |
| [FlutterMouseCursorPlugin registerWithRegistrar:[self registrarForPlugin:@"mousecursor"]]; |
| _keyboardManager = [[FlutterKeyboardManager alloc] initWithOwner:weakSelf]; |
| [_keyboardManager addPrimaryResponder:[[FlutterEmbedderKeyResponder alloc] |
| initWithSendEvent:^(const FlutterKeyEvent& event, |
| FlutterKeyEventCallback callback, |
| void* userData) { |
| [weakSelf.engine sendKeyEvent:event |
| callback:callback |
| userData:userData]; |
| }]]; |
| [_keyboardManager |
| addPrimaryResponder:[[FlutterChannelKeyResponder alloc] |
| initWithChannel:[FlutterBasicMessageChannel |
| messageChannelWithName:@"flutter/keyevent" |
| binaryMessenger:_engine.binaryMessenger |
| codec:[FlutterJSONMessageCodec |
| sharedInstance]]]]; |
| [_keyboardManager addSecondaryResponder:_textInputPlugin]; |
| _settingsChannel = |
| [FlutterBasicMessageChannel messageChannelWithName:@"flutter/settings" |
| binaryMessenger:_engine.binaryMessenger |
| codec:[FlutterJSONMessageCodec sharedInstance]]; |
| _platformChannel = |
| [FlutterMethodChannel methodChannelWithName:@"flutter/platform" |
| binaryMessenger:_engine.binaryMessenger |
| codec:[FlutterJSONMethodCodec sharedInstance]]; |
| [_platformChannel setMethodCallHandler:^(FlutterMethodCall* call, FlutterResult result) { |
| [weakSelf handleMethodCall:call result:result]; |
| }]; |
| } |
| |
| - (void)dispatchMouseEvent:(nonnull NSEvent*)event { |
| FlutterPointerPhase phase = _mouseState.buttons == 0 |
| ? (_mouseState.flutter_state_is_down ? kUp : kHover) |
| : (_mouseState.flutter_state_is_down ? kMove : kDown); |
| [self dispatchMouseEvent:event phase:phase]; |
| } |
| |
| - (void)dispatchMouseEvent:(NSEvent*)event phase:(FlutterPointerPhase)phase { |
| NSAssert(self.viewLoaded, @"View must be loaded before it handles the mouse event"); |
| // There are edge cases where the system will deliver enter out of order relative to other |
| // events (e.g., drag out and back in, release, then click; mouseDown: will be called before |
| // mouseEntered:). Discard those events, since the add will already have been synthesized. |
| if (_mouseState.flutter_state_is_added && phase == kAdd) { |
| return; |
| } |
| |
| // If a pointer added event hasn't been sent, synthesize one using this event for the basic |
| // information. |
| if (!_mouseState.flutter_state_is_added && phase != kAdd) { |
| // Only the values extracted for use in flutterEvent below matter, the rest are dummy values. |
| NSEvent* addEvent = [NSEvent enterExitEventWithType:NSEventTypeMouseEntered |
| location:event.locationInWindow |
| modifierFlags:0 |
| timestamp:event.timestamp |
| windowNumber:event.windowNumber |
| context:nil |
| eventNumber:0 |
| trackingNumber:0 |
| userData:NULL]; |
| [self dispatchMouseEvent:addEvent phase:kAdd]; |
| } |
| |
| NSPoint locationInView = [self.flutterView convertPoint:event.locationInWindow fromView:nil]; |
| NSPoint locationInBackingCoordinates = [self.flutterView convertPointToBacking:locationInView]; |
| FlutterPointerEvent flutterEvent = { |
| .struct_size = sizeof(flutterEvent), |
| .phase = phase, |
| .timestamp = static_cast<size_t>(event.timestamp * USEC_PER_SEC), |
| .x = locationInBackingCoordinates.x, |
| .y = -locationInBackingCoordinates.y, // convertPointToBacking makes this negative. |
| .device_kind = kFlutterPointerDeviceKindMouse, |
| // If a click triggered a synthesized kAdd, don't pass the buttons in that event. |
| .buttons = phase == kAdd ? 0 : _mouseState.buttons, |
| }; |
| |
| if (event.type == NSEventTypeScrollWheel) { |
| flutterEvent.signal_kind = kFlutterPointerSignalKindScroll; |
| |
| double pixelsPerLine = 1.0; |
| if (!event.hasPreciseScrollingDeltas) { |
| CGEventSourceRef source = CGEventCreateSourceFromEvent(event.CGEvent); |
| pixelsPerLine = CGEventSourceGetPixelsPerLine(source); |
| if (source) { |
| CFRelease(source); |
| } |
| } |
| double scaleFactor = self.flutterView.layer.contentsScale; |
| flutterEvent.scroll_delta_x = -event.scrollingDeltaX * pixelsPerLine * scaleFactor; |
| flutterEvent.scroll_delta_y = -event.scrollingDeltaY * pixelsPerLine * scaleFactor; |
| } |
| [_engine sendPointerEvent:flutterEvent]; |
| |
| // Update tracking of state as reported to Flutter. |
| if (phase == kDown) { |
| _mouseState.flutter_state_is_down = true; |
| } else if (phase == kUp) { |
| _mouseState.flutter_state_is_down = false; |
| if (_mouseState.has_pending_exit) { |
| [self dispatchMouseEvent:event phase:kRemove]; |
| _mouseState.has_pending_exit = false; |
| } |
| } else if (phase == kAdd) { |
| _mouseState.flutter_state_is_added = true; |
| } else if (phase == kRemove) { |
| _mouseState.Reset(); |
| } |
| } |
| |
| - (void)onAccessibilityStatusChanged:(NSNotification*)notification { |
| if (!_engine) { |
| return; |
| } |
| BOOL enabled = [notification.userInfo[EnhancedUserInterfaceKey] boolValue]; |
| if (!enabled && self.viewLoaded && [_textInputPlugin isFirstResponder]) { |
| // The client (i.e. the FlutterTextField) of the textInputPlugin is a sibling |
| // of the FlutterView. macOS will pick the ancestor to be the next responder |
| // when the client is removed from the view hierarchy, which is the result of |
| // turning off semantics. This will cause the keyboard focus to stick at the |
| // NSWindow. |
| // |
| // Since the view controller creates the illustion that the FlutterTextField is |
| // below the FlutterView in accessibility (See FlutterViewWrapper), it has to |
| // manually pick the next responder. |
| [self.view.window makeFirstResponder:_flutterView]; |
| } |
| _engine.semanticsEnabled = [notification.userInfo[EnhancedUserInterfaceKey] boolValue]; |
| } |
| |
| - (void)onSettingsChanged:(NSNotification*)notification { |
| // TODO(jonahwilliams): https://github.com/flutter/flutter/issues/32015. |
| NSString* brightness = |
| [[NSUserDefaults standardUserDefaults] stringForKey:@"AppleInterfaceStyle"]; |
| [_settingsChannel sendMessage:@{ |
| @"platformBrightness" : [brightness isEqualToString:@"Dark"] ? @"dark" : @"light", |
| // TODO(jonahwilliams): https://github.com/flutter/flutter/issues/32006. |
| @"textScaleFactor" : @1.0, |
| @"alwaysUse24HourFormat" : @false |
| }]; |
| } |
| |
| - (void)sendInitialSettings { |
| // TODO(jonahwilliams): https://github.com/flutter/flutter/issues/32015. |
| [[NSDistributedNotificationCenter defaultCenter] |
| addObserver:self |
| selector:@selector(onSettingsChanged:) |
| name:@"AppleInterfaceThemeChangedNotification" |
| object:nil]; |
| [self onSettingsChanged:nil]; |
| } |
| |
| - (void)handleMethodCall:(FlutterMethodCall*)call result:(FlutterResult)result { |
| if ([call.method isEqualToString:@"SystemNavigator.pop"]) { |
| [NSApp terminate:self]; |
| result(nil); |
| } else if ([call.method isEqualToString:@"SystemSound.play"]) { |
| [self playSystemSound:call.arguments]; |
| result(nil); |
| } else if ([call.method isEqualToString:@"Clipboard.getData"]) { |
| result([self getClipboardData:call.arguments]); |
| } else if ([call.method isEqualToString:@"Clipboard.setData"]) { |
| [self setClipboardData:call.arguments]; |
| result(nil); |
| } else if ([call.method isEqualToString:@"Clipboard.hasStrings"]) { |
| result(@{@"value" : @([self clipboardHasStrings])}); |
| } else { |
| result(FlutterMethodNotImplemented); |
| } |
| } |
| |
| - (void)playSystemSound:(NSString*)soundType { |
| if ([soundType isEqualToString:@"SystemSoundType.alert"]) { |
| NSBeep(); |
| } |
| } |
| |
| - (NSDictionary*)getClipboardData:(NSString*)format { |
| NSPasteboard* pasteboard = self.pasteboard; |
| if ([format isEqualToString:@(kTextPlainFormat)]) { |
| NSString* stringInPasteboard = [pasteboard stringForType:NSPasteboardTypeString]; |
| return stringInPasteboard == nil ? nil : @{@"text" : stringInPasteboard}; |
| } |
| return nil; |
| } |
| |
| - (void)setClipboardData:(NSDictionary*)data { |
| NSPasteboard* pasteboard = self.pasteboard; |
| NSString* text = data[@"text"]; |
| [pasteboard clearContents]; |
| if (text && ![text isEqual:[NSNull null]]) { |
| [pasteboard setString:text forType:NSPasteboardTypeString]; |
| } |
| } |
| |
| - (BOOL)clipboardHasStrings { |
| return [self.pasteboard stringForType:NSPasteboardTypeString].length > 0; |
| } |
| |
| - (NSPasteboard*)pasteboard { |
| return [NSPasteboard generalPasteboard]; |
| } |
| |
| #pragma mark - FlutterViewReshapeListener |
| |
| /** |
| * Responds to view reshape by notifying the engine of the change in dimensions. |
| */ |
| - (void)viewDidReshape:(NSView*)view { |
| [_engine updateWindowMetrics]; |
| } |
| |
| #pragma mark - FlutterPluginRegistry |
| |
| - (id<FlutterPluginRegistrar>)registrarForPlugin:(NSString*)pluginName { |
| return [_engine registrarForPlugin:pluginName]; |
| } |
| |
| #pragma mark - NSResponder |
| |
| - (BOOL)acceptsFirstResponder { |
| return YES; |
| } |
| |
| - (void)keyDown:(NSEvent*)event { |
| [_keyboardManager handleEvent:event]; |
| } |
| |
| - (void)keyUp:(NSEvent*)event { |
| [_keyboardManager handleEvent:event]; |
| } |
| |
| - (BOOL)performKeyEquivalent:(NSEvent*)event { |
| [_keyboardManager handleEvent:event]; |
| if (event.type == NSEventTypeKeyDown) { |
| // macOS only sends keydown for performKeyEquivalent, but the Flutter framework |
| // always expects a keyup for every keydown. Synthesizes a key up event so that |
| // the Flutter framework continues to work. |
| NSEvent* synthesizedUp = [NSEvent keyEventWithType:NSEventTypeKeyUp |
| location:event.locationInWindow |
| modifierFlags:event.modifierFlags |
| timestamp:event.timestamp |
| windowNumber:event.windowNumber |
| context:event.context |
| characters:event.characters |
| charactersIgnoringModifiers:event.charactersIgnoringModifiers |
| isARepeat:event.isARepeat |
| keyCode:event.keyCode]; |
| [_keyboardManager handleEvent:synthesizedUp]; |
| } |
| return YES; |
| } |
| |
| - (void)flagsChanged:(NSEvent*)event { |
| [_keyboardManager handleEvent:event]; |
| } |
| |
| - (void)mouseEntered:(NSEvent*)event { |
| if (_mouseState.has_pending_exit) { |
| _mouseState.has_pending_exit = false; |
| } else { |
| [self dispatchMouseEvent:event phase:kAdd]; |
| } |
| } |
| |
| - (void)mouseExited:(NSEvent*)event { |
| if (_mouseState.buttons != 0) { |
| _mouseState.has_pending_exit = true; |
| return; |
| } |
| [self dispatchMouseEvent:event phase:kRemove]; |
| } |
| |
| - (void)mouseDown:(NSEvent*)event { |
| _mouseState.buttons |= kFlutterPointerButtonMousePrimary; |
| [self dispatchMouseEvent:event]; |
| } |
| |
| - (void)mouseUp:(NSEvent*)event { |
| _mouseState.buttons &= ~static_cast<uint64_t>(kFlutterPointerButtonMousePrimary); |
| [self dispatchMouseEvent:event]; |
| } |
| |
| - (void)mouseDragged:(NSEvent*)event { |
| [self dispatchMouseEvent:event]; |
| } |
| |
| - (void)rightMouseDown:(NSEvent*)event { |
| _mouseState.buttons |= kFlutterPointerButtonMouseSecondary; |
| [self dispatchMouseEvent:event]; |
| } |
| |
| - (void)rightMouseUp:(NSEvent*)event { |
| _mouseState.buttons &= ~static_cast<uint64_t>(kFlutterPointerButtonMouseSecondary); |
| [self dispatchMouseEvent:event]; |
| } |
| |
| - (void)rightMouseDragged:(NSEvent*)event { |
| [self dispatchMouseEvent:event]; |
| } |
| |
| - (void)otherMouseDown:(NSEvent*)event { |
| _mouseState.buttons |= (1 << event.buttonNumber); |
| [self dispatchMouseEvent:event]; |
| } |
| |
| - (void)otherMouseUp:(NSEvent*)event { |
| _mouseState.buttons &= ~static_cast<uint64_t>(1 << event.buttonNumber); |
| [self dispatchMouseEvent:event]; |
| } |
| |
| - (void)otherMouseDragged:(NSEvent*)event { |
| [self dispatchMouseEvent:event]; |
| } |
| |
| - (void)mouseMoved:(NSEvent*)event { |
| [self dispatchMouseEvent:event]; |
| } |
| |
| - (void)scrollWheel:(NSEvent*)event { |
| // TODO: Add gesture-based (trackpad) scroll support once it's supported by the engine rather |
| // than always using kHover. |
| [self dispatchMouseEvent:event phase:kHover]; |
| } |
| |
| @end |
