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WalletConnectModal.swift
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WalletConnectModal.swift
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import Foundation
#if canImport(UIKit)
import UIKit
#endif
#if SWIFT_PACKAGE
public typealias VerifyContext = WalletConnectVerify.VerifyContext
#endif
/// WalletConnectModal instance wrapper
///
/// ```Swift
/// let metadata = AppMetadata(
/// name: "Swift dapp",
/// description: "dapp",
/// url: "dapp.wallet.connect",
/// icons: ["https://my_icon.com/1"]
/// )
/// WalletConnectModal.configure(projectId: PROJECT_ID, metadata: metadata)
/// WalletConnectModal.instance.getSessions()
/// ```
public class WalletConnectModal {
/// WalletConnectModalt client instance
public static var instance: WalletConnectModalClient = {
guard let config = WalletConnectModal.config else {
fatalError("Error - you must call WalletConnectModal.configure(_:) before accessing the shared instance.")
}
return WalletConnectModalClient(
signClient: Sign.instance,
pairingClient: Pair.instance as! (PairingClientProtocol & PairingInteracting & PairingRegisterer)
)
}()
struct Config {
let projectId: String
var metadata: AppMetadata
var sessionParams: SessionParams
let recommendedWalletIds: [String]
let excludedWalletIds: [String]
}
private(set) static var config: Config!
private init() {}
/// Wallet instance wallet config method.
/// - Parameters:
/// - metadata: App metadata
public static func configure(
projectId: String,
metadata: AppMetadata,
sessionParams: SessionParams = .default,
recommendedWalletIds: [String] = [],
excludedWalletIds: [String] = []
) {
Pair.configure(metadata: metadata)
WalletConnectModal.config = WalletConnectModal.Config(
projectId: projectId,
metadata: metadata,
sessionParams: sessionParams,
recommendedWalletIds: recommendedWalletIds,
excludedWalletIds: excludedWalletIds
)
}
public static func set(sessionParams: SessionParams) {
WalletConnectModal.config.sessionParams = sessionParams
}
}
#if canImport(UIKit)
extension WalletConnectModal {
public static func present(from presentingViewController: UIViewController? = nil) {
guard let vc = presentingViewController ?? topViewController() else {
assertionFailure("No controller found for presenting modal")
return
}
let modal = WalletConnectModalSheetController()
vc.present(modal, animated: true)
}
private static func topViewController(_ base: UIViewController? = nil) -> UIViewController? {
let base = base ?? UIApplication
.shared
.connectedScenes
.flatMap { ($0 as? UIWindowScene)?.windows ?? [] }
.last { $0.isKeyWindow }?
.rootViewController
if let nav = base as? UINavigationController {
return topViewController(nav.visibleViewController)
}
if let tab = base as? UITabBarController {
if let selected = tab.selectedViewController {
return topViewController(selected)
}
}
if let presented = base?.presentedViewController {
return topViewController(presented)
}
return base
}
}
#elseif canImport(AppKit)
import AppKit
extension WalletConnectModal {
public static func present(from presentingViewController: NSViewController? = nil) {
let modal = WalletConnectModalSheetController()
presentingViewController!.presentAsModalWindow(modal)
}
}
#endif
public struct SessionParams {
public let requiredNamespaces: [String: ProposalNamespace]
public let optionalNamespaces: [String: ProposalNamespace]?
public let sessionProperties: [String: String]?
public init(requiredNamespaces: [String : ProposalNamespace], optionalNamespaces: [String : ProposalNamespace]? = nil, sessionProperties: [String : String]? = nil) {
self.requiredNamespaces = requiredNamespaces
self.optionalNamespaces = optionalNamespaces
self.sessionProperties = sessionProperties
}
public static let `default`: Self = {
let methods: Set<String> = ["eth_sendTransaction", "personal_sign", "eth_signTypedData"]
let events: Set<String> = ["chainChanged", "accountsChanged"]
let blockchains: Set<Blockchain> = [Blockchain("eip155:1")!]
let namespaces: [String: ProposalNamespace] = [
"eip155": ProposalNamespace(
chains: blockchains,
methods: methods,
events: events
)
]
return SessionParams(
requiredNamespaces: namespaces,
optionalNamespaces: nil,
sessionProperties: nil
)
}()
}