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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 UIKit import FBSDKShareKit
extension AppInvite { /// A dialog to send app invites. public final class Dialog { fileprivate let sdkDialog: FBSDKAppInviteDialog fileprivate let sdkDelegate: SDKDelegate
/// The invite to send. public let invite: AppInvite
/**
A UIViewController to present the dialog from.
If not specified, the top most view controller will be automatically determined as best as possible. */ public var presentingViewController: UIViewController? { get { return sdkDialog.fromViewController } set { sdkDialog.fromViewController = newValue } }
/// The completion handler to be invoked upon showing the dialog. public var completion: ((Result) -> Void)? { get { return sdkDelegate.completion } set { sdkDelegate.completion = newValue } }
/**
Create a dialog with an invite.
- parameter invite: The invite to send. */ public init(invite: AppInvite) { sdkDialog = FBSDKAppInviteDialog() sdkDialog.content = invite.sdkInviteRepresentation
sdkDelegate = SDKDelegate() sdkDelegate.setupAsDelegateFor(sdkDialog)
self.invite = invite }
/**
Attempt to show the dialog modally.
- throws: If the dialog fails to present. */ public func show() throws { var error: Error? let completionHandler = sdkDelegate.completion sdkDelegate.completion = { if case .failed(let resultError) = $0 { error = resultError } }
sdkDialog.show() sdkDelegate.completion = completionHandler
if let error = error { throw error } }
/**
Validates the contents of the reciever as valid.
- throws: If the content is invalid. */ public func validate() throws { try sdkDialog.validate() } } }
extension AppInvite.Dialog { /**
Convenience method to show a `Dialog` with a `presentingViewController`, `invite`, and `completion`.
- parameter viewController: The view controller to present from. - parameter invite: The invite to send. - parameter completion: The completion handler to invoke upon success.
- throws: If the dialog fails to present.
- returns: The dialog that has been presented. */ @discardableResult public static func show(from viewController: UIViewController, invite: AppInvite, completion: ((AppInvite.Result) -> Void)? = nil) throws -> Self { let dialog = self.init(invite: invite) dialog.presentingViewController = viewController dialog.completion = completion try dialog.show() return dialog } }
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