import <objc/message.h>
import "FlutterMouseCursorPlugin.h"
import "flutter/shell/platform/darwin/common/framework/Headers/FlutterCodecs.h"

Functions
static NSCursor *	GetCursorForKind (NSString *kind)

Variables
static NSString *const	kMouseCursorChannel = @"@"flutter/mousecursor"

static NSString *const	kActivateSystemCursorMethod = @"@"activateSystemCursor"

static NSString *const	kKindKey = @"@"kind"

static NSString *const	kKindValueNone = @"@"none"

static NSDictionary *	systemCursors

NSMutableDictionary *	cachedSystemCursors

Function Documentation

◆ GetCursorForKind()

static NSCursor * GetCursorForKind ( NSString * kind )

static

Maps a Flutter's constant to a platform's cursor object.

Returns the arrow cursor for unknown constants, including kSystemShapeNone.

Definition at line 24 of file FlutterMouseCursorPlugin.mm.

                                                  {
  // The following mapping must be kept in sync with Flutter framework's
  // mouse_cursor.dart
 
  if ([kind isEqualToString:kKindValueNone]) {
    NSImage* image = [[NSImage alloc] initWithSize:NSMakeSize(1, 1)];
    return [[NSCursor alloc] initWithImage:image hotSpot:NSMakePoint(0, 0)];
  }
 
  if (systemCursors == nil) {
    systemCursors = @{
      @"alias" : [NSCursor dragLinkCursor],
      @"basic" : [NSCursor arrowCursor],
      @"click" : [NSCursor pointingHandCursor],
      @"contextMenu" : [NSCursor contextualMenuCursor],
      @"copy" : [NSCursor dragCopyCursor],
      @"disappearing" : [NSCursor disappearingItemCursor],
      @"forbidden" : [NSCursor operationNotAllowedCursor],
      @"grab" : [NSCursor openHandCursor],
      @"grabbing" : [NSCursor closedHandCursor],
      @"noDrop" : [NSCursor operationNotAllowedCursor],
      @"precise" : [NSCursor crosshairCursor],
      @"text" : [NSCursor IBeamCursor],
      @"resizeColumn" : [NSCursor resizeLeftRightCursor],
      @"resizeDown" : [NSCursor resizeDownCursor],
      @"resizeLeft" : [NSCursor resizeLeftCursor],
      @"resizeLeftRight" : [NSCursor resizeLeftRightCursor],
      @"resizeRight" : [NSCursor resizeRightCursor],
      @"resizeRow" : [NSCursor resizeUpDownCursor],
      @"resizeUp" : [NSCursor resizeUpCursor],
      @"resizeUpDown" : [NSCursor resizeUpDownCursor],
      @"verticalText" : [NSCursor IBeamCursorForVerticalLayout],
    };
  }
  NSCursor* result = [systemCursors objectForKey:kind];
  if (result == nil) {
    return [NSCursor arrowCursor];
  }
  return result;
}