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//
// SwiftyTimer
//
// Copyright (c) 2015-2016 Radosław Pietruszewski
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
import Foundation
extension Timer {
// MARK: Schedule timers
/// Create and schedule a timer that will call `block` once after the specified time.
@discardableResult
public class func after(_ interval: TimeInterval, _ block: @escaping () -> Void) -> Timer {
let timer = Timer.new(after: interval, block)
timer.start()
return timer
}
/// Create and schedule a timer that will call `block` repeatedly in specified time intervals.
@discardableResult
public class func every(_ interval: TimeInterval, _ block: @escaping () -> Void) -> Timer {
let timer = Timer.new(every: interval, block)
timer.start()
return timer
}
/// Create and schedule a timer that will call `block` repeatedly in specified time intervals.
/// (This variant also passes the timer instance to the block)
@nonobjc @discardableResult
public class func every(_ interval: TimeInterval, _ block: @escaping (Timer) -> Void) -> Timer {
let timer = Timer.new(every: interval, block)
timer.start()
return timer
}
// MARK: Create timers without scheduling
/// Create a timer that will call `block` once after the specified time.
///
/// - Note: The timer won't fire until it's scheduled on the run loop.
/// Use `NSTimer.after` to create and schedule a timer in one step.
/// - Note: The `new` class function is a workaround for a crashing bug when using convenience initializers (rdar://18720947)
public class func new(after interval: TimeInterval, _ block: @escaping () -> Void) -> Timer {
return CFRunLoopTimerCreateWithHandler(kCFAllocatorDefault, CFAbsoluteTimeGetCurrent() + interval, 0, 0, 0) { _ in
block()
}
}
/// Create a timer that will call `block` repeatedly in specified time intervals.
///
/// - Note: The timer won't fire until it's scheduled on the run loop.
/// Use `NSTimer.every` to create and schedule a timer in one step.
/// - Note: The `new` class function is a workaround for a crashing bug when using convenience initializers (rdar://18720947)
public class func new(every interval: TimeInterval, _ block: @escaping () -> Void) -> Timer {
return CFRunLoopTimerCreateWithHandler(kCFAllocatorDefault, CFAbsoluteTimeGetCurrent() + interval, interval, 0, 0) { _ in
block()
}
}
/// Create a timer that will call `block` repeatedly in specified time intervals.
/// (This variant also passes the timer instance to the block)
///
/// - Note: The timer won't fire until it's scheduled on the run loop.
/// Use `NSTimer.every` to create and schedule a timer in one step.
/// - Note: The `new` class function is a workaround for a crashing bug when using convenience initializers (rdar://18720947)
@nonobjc public class func new(every interval: TimeInterval, _ block: @escaping (Timer) -> Void) -> Timer {
var timer: Timer!
timer = CFRunLoopTimerCreateWithHandler(kCFAllocatorDefault, CFAbsoluteTimeGetCurrent() + interval, interval, 0, 0) { _ in
block(timer)
}
return timer
}
// MARK: Manual scheduling
/// Schedule this timer on the run loop
///
/// By default, the timer is scheduled on the current run loop for the default mode.
/// Specify `runLoop` or `modes` to override these defaults.
public func start(runLoop: RunLoop = .current, modes: RunLoop.Mode...) {
let modes = modes.isEmpty ? [.default] : modes
for mode in modes {
runLoop.add(self, forMode: mode)
}
}
}
// MARK: - Time extensions
extension Double {
public var millisecond: TimeInterval { return self / 1000 }
public var milliseconds: TimeInterval { return self / 1000 }
public var ms: TimeInterval { return self / 1000 }
public var second: TimeInterval { return self }
public var seconds: TimeInterval { return self }
public var minute: TimeInterval { return self * 60 }
public var minutes: TimeInterval { return self * 60 }
public var hour: TimeInterval { return self * 3600 }
public var hours: TimeInterval { return self * 3600 }
public var day: TimeInterval { return self * 3600 * 24 }
public var days: TimeInterval { return self * 3600 * 24 }
}