Initial implementation

Author: radex

Src/SwiftyTimer.swift

@@ -0,0 +1,95 @@
+//
+// SwiftyTimer
+//
+// Copyright (c) 2015 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
+
+private class NSTimerActor {
+    var block: () -> ()
+    
+    init(_ block: () -> ()) {
+        self.block = block
+    }
+    
+    dynamic func fire() {
+        block()
+    }
+}
+
+extension NSTimer {
+    // NOTE: `new` class functions are a workaround for a crashing bug when using convenience initializers (18720947)
+    
+    /// 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.
+    
+    class func new(after interval: NSTimeInterval, _ block: () -> ()) -> NSTimer {
+        let actor = NSTimerActor(block)
+        return self.init(timeInterval: interval, target: actor, selector: "fire", userInfo: nil, repeats: false)
+    }
+    
+    /// 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.
+    
+    class func new(every interval: NSTimeInterval, _ block: () -> ()) -> NSTimer {
+        let actor = NSTimerActor(block)
+        return self.init(timeInterval: interval, target: actor, selector: "fire", userInfo: nil, repeats: true)
+    }
+    
+    /// Create and schedule a timer that will call `block` once after the specified time.
+    
+    class func after(interval: NSTimeInterval, _ block: () -> ()) -> NSTimer {
+        let timer = NSTimer.new(after: interval, block)
+        NSRunLoop.currentRunLoop().addTimer(timer, forMode: NSDefaultRunLoopMode)
+        return timer
+    }
+    
+    /// Create and schedule a timer that will call `block` repeatedly in specified time intervals.
+    
+    class func every(interval: NSTimeInterval, _ block: () -> ()) -> NSTimer {
+        let timer = NSTimer.new(every: interval, block)
+        NSRunLoop.currentRunLoop().addTimer(timer, forMode: NSDefaultRunLoopMode)
+        return timer
+    }
+}
+
+extension Int {
+    var second:  NSTimeInterval { return NSTimeInterval(self) }
+    var seconds: NSTimeInterval { return NSTimeInterval(self) }
+    var minute:  NSTimeInterval { return NSTimeInterval(self * 60) }
+    var minutes: NSTimeInterval { return NSTimeInterval(self * 60) }
+    var hour:    NSTimeInterval { return NSTimeInterval(self * 3600) }
+    var hours:   NSTimeInterval { return NSTimeInterval(self * 3600) }
+}
+
+extension Double {
+    var second:  NSTimeInterval { return self }
+    var seconds: NSTimeInterval { return self }
+    var minute:  NSTimeInterval { return self * 60 }
+    var minutes: NSTimeInterval { return self * 60 }
+    var hour:    NSTimeInterval { return self * 3600 }
+    var hours:   NSTimeInterval { return self * 3600 }
+}