MVC

• Model
• View (NSView)
  • NSView inherits from NSResponder
  • NSResponder handles events
• Controller (NSViewController)

xi editor

https://github.com/xi-editor/xi-mac

EditView, inherits from:

• NSView
• NSTextInputClient

NSViewController

Controls many views

EventKit

https://developer.apple.com/documentation/eventkit/ekevent?language=objc

import EventKit

var store = EKEventStore()
store.requestAccess(to: .reminder) { granted, error in
    // Handle the response to the request.
    print("got access")
}

// Get the appropriate calendar.
var calendar = Calendar.current;

// Create the start date components
var oneDayAgoComponents = DateComponents()
oneDayAgoComponents.day = -1
var oneDayAgo = calendar.date(byAdding: oneDayAgoComponents, to: Date(), wrappingComponents: false)

var oneYearFromNowComponents = DateComponents()
oneYearFromNowComponents.day = 1
var oneYearFromNow = calendar.date(byAdding: oneYearFromNowComponents, to: Date(), wrappingComponents: false)

// Create the predicate from the event store's instance method.
var predicate: NSPredicate? = nil
if let anAgo = oneDayAgo, let aNow = oneYearFromNow {
    predicate = store.predicateForEvents(withStart: anAgo, end: aNow, calendars: nil)
}


// Fetch all events that match the predicate.
var events: [EKEvent]? = nil
if let aPredicate = predicate {
    events = store.events(matching: aPredicate)
}
print("events=")
for e in events! {
    print(e.title!, e.attendees)
}