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// Copyright (c) 2016-present, Facebook, Inc. All rights reserved. // // You are hereby granted a non-exclusive, worldwide, royalty-free license to use, // copy, modify, and distribute this software in source code or binary form for use // in connection with the web services and APIs provided by Facebook. // // As with any software that integrates with the Facebook platform, your use of // this software is subject to the Facebook Developer Principles and Policies // [http://developers.facebook.com/policy/]. This copyright 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 import FBSDKShareKit
/**
A button to like an object.
Tapping the receiver will invoke an API call to the Facebook app through a fast-app-switch that allows the object to be liked. Upon return to the calling app, the view will update with the new state. If the currentAccessToken has "publish_actions" permission and the object is an Open Graph object, then the like can happen seamlessly without the fast-app-switch. */ public class LikeButton: UIView {
fileprivate var sdkLikeButton: FBSDKLikeButton
/// If `true`, a sound is played when the reciever is toggled. public var isSoundEnabled: Bool { get { return sdkLikeButton.isSoundEnabled } set { sdkLikeButton.isSoundEnabled = newValue } }
/// The object to like public var object: LikableObject { get { return LikableObject(sdkObjectType: sdkLikeButton.objectType, sdkObjectId: sdkLikeButton.objectID) } set { let sdkRepresentation = newValue.sdkObjectRepresntation sdkLikeButton.objectType = sdkRepresentation.objectType sdkLikeButton.objectID = sdkRepresentation.objectId } }
/**
Create a new LikeButton with a given frame and object.
- parameter frame: The frame to initialize with. - parameter object: The object to like. */ public init(frame: CGRect? = nil, object: LikableObject) { let sdkLikeButton = FBSDKLikeButton() let frame = frame ?? sdkLikeButton.bounds
self.sdkLikeButton = sdkLikeButton
super.init(frame: frame)
self.object = object self.addSubview(sdkLikeButton) }
/**
Create a new LikeButton from an encoded interface file.
- parameter aDecoder: The coder to initialize from. */ public required init?(coder aDecoder: NSCoder) { sdkLikeButton = FBSDKLikeButton()
super.init(coder: aDecoder) addSubview(sdkLikeButton) }
/**
Performs logic for laying out subviews. */ public override func layoutSubviews() { super.layoutSubviews()
sdkLikeButton.frame = CGRect(origin: .zero, size: bounds.size) }
/**
Resizes and moves the receiver view so it just encloses its subviews. */ public override func sizeToFit() { bounds.size = sizeThatFits(CGSize(width: CGFloat.greatestFiniteMagnitude, height: CGFloat.greatestFiniteMagnitude)) }
/**
Asks the view to calculate and return the size that best fits the specified size.
- parameter size: A new size that fits the receiver’s subviews.
- returns: A new size that fits the receiver’s subviews. */ public override func sizeThatFits(_ size: CGSize) -> CGSize { return sdkLikeButton.sizeThatFits(size) }
/**
Returns the natural size for the receiving view, considering only properties of the view itself.
- returns: A size indicating the natural size for the receiving view based on its intrinsic properties. */ public override var intrinsicContentSize: CGSize { return sdkLikeButton.intrinsicContentSize } }
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