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