Titanium Mobile proxies for PHLivePhoto's using Swift 2

TiUIiOSLivePhoto.swift

/**
 * Appcelerator Titanium Mobile
 * Copyright (c) 2009-2015 by Appcelerator, Inc. All Rights Reserved.
 * Licensed under the terms of the Apache Public License
 * Please see the LICENSE included with this distribution for details.
 */

import Foundation
import Photos

@available(iOS 9.1, *)
@objc class TiUIiOSLivePhoto : TiProxy {
    var livePhoto: PHLivePhoto!
    
    init(livePhoto: PHLivePhoto) {
        self.livePhoto = livePhoto
    }
}

TiUIiOSLivePhotoView.swift

/**
 * Appcelerator Titanium Mobile
 * Copyright (c) 2009-2015 by Appcelerator, Inc. All Rights Reserved.
 * Licensed under the terms of the Apache Public License
 * Please see the LICENSE included with this distribution for details.
 */

import Foundation
import PhotosUI

@available(iOS 9.1, *)
@objc class TiUIiOSLivePhotoView : TiUIView, PHLivePhotoViewDelegate {
    var width: TiDimension!
    var height: TiDimension!
    var autoWidth: CGFloat!
    var autoHeight: CGFloat!
    
    var livePhotoView: PHLivePhotoView!
    
    func getLivePhotoViewProxy() -> TiUIiOSLivePhotoViewProxy {
        return self.proxy as! TiUIiOSLivePhotoViewProxy
    }
    
    func getLivePhotoView() -> PHLivePhotoView {
        if self.livePhotoView == nil {
            self.livePhotoView = PHLivePhotoView(frame: self.bounds)
            self.livePhotoView.delegate = self
            self.livePhotoView.autoresizingMask = .FlexibleHeight
            self.livePhotoView.contentMode = self.contentModeForLivePhotoView()
            
            self.addSubview(self.livePhotoView)
        }
        
        return self.livePhotoView
    }
    
    // MARK: - Public API's
    
    func setLivePhoto_(arg: TiUIiOSLivePhoto) {
        let livePhoto: PHLivePhoto = arg.livePhoto!
        
        autoWidth = livePhoto.size.width
        autoHeight = livePhoto.size.height
        
        self.livePhotoView.livePhoto = livePhoto
    }
    
    func setWidth_(width_: AnyObject) {
        width = TiDimensionFromObject(width_)
        self.updateContentMode()
    }
    
    func setHeight_(height_: AnyObject) {
        height = TiDimensionFromObject(height_)
        self.updateContentMode()
    }
    
    override func frameSizeChanged(frame: CGRect, bounds: CGRect) {
        for child: UIView in self.subviews {
            TiUtils.setView(child, positionRect: bounds)
        }
        
        super.frameSizeChanged(frame, bounds: bounds)
    }
    
    // MARK: - Helper
    
    func contentModeForLivePhotoView() -> UIViewContentMode {
        if TiDimensionIsAuto(width) || TiDimensionIsAutoSize(width) || TiDimensionIsUndefined(width) ||
            TiDimensionIsAuto(height) || TiDimensionIsAutoSize(height) || TiDimensionIsUndefined(height) {
                return .ScaleAspectFit;
        } else {
            return .ScaleToFill;
        }
    }
    
    func updateContentMode() {
        if self.livePhotoView != nil {
            getLivePhotoView().contentMode = self.contentModeForLivePhotoView()
        }
    }
    
    override func contentWidthForWidth(suggestedWidth: CGFloat) -> CGFloat {
        if autoWidth > 0 {
            
            // If height is DIP returned a scaled autowidth to maintain aspect ratio
            if TiDimensionIsDip(height) && autoHeight > 0 {
                return round(autoWidth * height.value / autoHeight);
            }
            
            return autoWidth;
        }
        
        let calculatedWidth: CGFloat = TiDimensionCalculateValue(width, autoWidth)
        
        if calculatedWidth > 0 {
            return calculatedWidth;
        }
        
        return 0;
    }
    
    override func contentHeightForWidth(width_: CGFloat) -> CGFloat {
        if width_ != autoWidth && autoWidth > 0 && autoHeight > 0 {
            return (width_ * autoHeight / autoWidth);
        }
        
        if autoHeight > 0 {
            return autoHeight;
        }
        
        let calculatedHeight: CGFloat = TiDimensionCalculateValue(height, autoHeight)
        
        if calculatedHeight > 0 {
            return calculatedHeight;
        }
        
        return 0;
    }

    // MARK: - Delegates
    
    func livePhotoView(livePhotoView: PHLivePhotoView, willBeginPlaybackWithStyle playbackStyle: PHLivePhotoViewPlaybackStyle) {
        let event: Dictionary = ["playbackStyle" : NSNumber(integer: playbackStyle.rawValue)]
        self.getLivePhotoViewProxy().fireEvent("start", withObject: event)
    }
    
    func livePhotoView(livePhotoView: PHLivePhotoView, didEndPlaybackWithStyle playbackStyle: PHLivePhotoViewPlaybackStyle) {
        let event: Dictionary = ["playbackStyle" : NSNumber(integer: playbackStyle.rawValue)]
        self.getLivePhotoViewProxy().fireEvent("stop", withObject: event)

    }
}

TiUIiOSLivePhotoViewProxy.swift

/**
 * Appcelerator Titanium Mobile
 * Copyright (c) 2009-2015 by Appcelerator, Inc. All Rights Reserved.
 * Licensed under the terms of the Apache Public License
 * Please see the LICENSE included with this distribution for details.
 */

import Foundation
import PhotosUI

@available(iOS 9.1, *)
@objc class TiUIiOSLivePhotoViewProxy : TiViewProxy {
    
    // MARK: Proxy lifecyle
    
    override func apiName() -> String! {
        return "Ti.UI.iOS.LivePhotoView"
    }
    
    // MARK: Public API's
    
    func livePhotoView() -> TiUIiOSLivePhotoView {
        return self.view as! TiUIiOSLivePhotoView
    }
    
    func startPlaybackWithStyle(args: AnyObject) {
        self.livePhotoView().livePhotoView.startPlaybackWithStyle(PHLivePhotoViewPlaybackStyle(rawValue: args.objectAtIndex(0) as! Int)!)
    }
    
    func stopPlayback(unused: AnyObject) {
        self.livePhotoView().livePhotoView.stopPlayback()
    }
    
    func setMuted(value: AnyObject) {
        self.replaceValue(value, forKey: "muted", notification: false)
        self.livePhotoView().livePhotoView.muted = TiUtils.boolValue(value)
    }
    
    func muted() -> NSNumber {
        return self.livePhotoView().livePhotoView.muted
    }
    
    // MARK: Helper
    
    override func defaultAutoWidthBehavior(unused: AnyObject!) -> TiDimension {
        return TiDimensionAutoSize
    }
    
    override func defaultAutoHeightBehavior(unused: AnyObject!) -> TiDimension {
        return TiDimensionAutoSize
    }
}