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121 lines
4.0 KiB
121 lines
4.0 KiB
// Copyright (c) 2016-present, Facebook, Inc. All rights reserved.
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//
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// You are hereby granted a non-exclusive, worldwide, royalty-free license to use,
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// copy, modify, and distribute this software in source code or binary form for use
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// in connection with the web services and APIs provided by Facebook.
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//
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// As with any software that integrates with the Facebook platform, your use of
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// this software is subject to the Facebook Developer Principles and Policies
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// [http://developers.facebook.com/policy/]. This copyright notice shall be
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// included in all copies or substantial portions of the software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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import Foundation
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import FBSDKShareKit
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/**
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A button to like an object.
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Tapping the receiver will invoke an API call to the Facebook app through a fast-app-switch that allows
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the object to be liked. Upon return to the calling app, the view will update with the new state. If the
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currentAccessToken has "publish_actions" permission and the object is an Open Graph object, then the like can happen
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seamlessly without the fast-app-switch.
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*/
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public class LikeButton: UIView {
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fileprivate var sdkLikeButton: FBSDKLikeButton
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/// If `true`, a sound is played when the reciever is toggled.
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public var isSoundEnabled: Bool {
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get {
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return sdkLikeButton.isSoundEnabled
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}
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set {
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sdkLikeButton.isSoundEnabled = newValue
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}
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}
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/// The object to like
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public var object: LikableObject {
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get {
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return LikableObject(sdkObjectType: sdkLikeButton.objectType, sdkObjectId: sdkLikeButton.objectID)
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}
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set {
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let sdkRepresentation = newValue.sdkObjectRepresntation
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sdkLikeButton.objectType = sdkRepresentation.objectType
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sdkLikeButton.objectID = sdkRepresentation.objectId
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}
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}
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/**
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Create a new LikeButton with a given frame and object.
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- parameter frame: The frame to initialize with.
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- parameter object: The object to like.
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*/
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public init(frame: CGRect? = nil, object: LikableObject) {
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let sdkLikeButton = FBSDKLikeButton()
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let frame = frame ?? sdkLikeButton.bounds
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self.sdkLikeButton = sdkLikeButton
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super.init(frame: frame)
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self.object = object
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self.addSubview(sdkLikeButton)
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}
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/**
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Create a new LikeButton from an encoded interface file.
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- parameter aDecoder: The coder to initialize from.
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*/
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public required init?(coder aDecoder: NSCoder) {
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sdkLikeButton = FBSDKLikeButton()
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super.init(coder: aDecoder)
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addSubview(sdkLikeButton)
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}
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/**
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Performs logic for laying out subviews.
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*/
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public override func layoutSubviews() {
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super.layoutSubviews()
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sdkLikeButton.frame = CGRect(origin: .zero, size: bounds.size)
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}
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/**
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Resizes and moves the receiver view so it just encloses its subviews.
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*/
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public override func sizeToFit() {
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bounds.size = sizeThatFits(CGSize(width: CGFloat.greatestFiniteMagnitude, height: CGFloat.greatestFiniteMagnitude))
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}
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/**
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Asks the view to calculate and return the size that best fits the specified size.
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- parameter size: A new size that fits the receiver’s subviews.
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- returns: A new size that fits the receiver’s subviews.
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*/
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public override func sizeThatFits(_ size: CGSize) -> CGSize {
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return sdkLikeButton.sizeThatFits(size)
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}
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/**
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Returns the natural size for the receiving view, considering only properties of the view itself.
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- returns: A size indicating the natural size for the receiving view based on its intrinsic properties.
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*/
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public override var intrinsicContentSize: CGSize {
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return sdkLikeButton.intrinsicContentSize
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}
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}
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