tokenary/Tokenary macOS/Screens/AccountsListViewController.swift
2021-12-09 13:35:12 +03:00

391 lines
14 KiB
Swift

// Copyright © 2021 Tokenary. All rights reserved.
import Cocoa
class AccountsListViewController: NSViewController {
private let agent = Agent.shared
private let walletsManager = WalletsManager.shared
private var cellModels = [CellModel]()
private var chain = EthereumChain.ethereum
private var didCallCompletion = false
var onSelectedWallet: ((EthereumChain?, TokenaryWallet?) -> Void)?
var newWalletId: String?
enum CellModel {
case wallet
case addAccountOption(AddAccountOption)
}
enum AddAccountOption {
case createNew, importExisting
var title: String {
switch self {
case .createNew:
return "🌱 " + Strings.createNew
case .importExisting:
return Strings.importExisting
}
}
}
private weak var testnetsMenuItem: NSMenuItem?
@IBOutlet weak var chainButtonHeightConstraint: NSLayoutConstraint!
@IBOutlet weak var chainButtonContainer: NSView!
@IBOutlet weak var chainButton: NSPopUpButton!
@IBOutlet weak var addButton: NSButton! {
didSet {
let menu = NSMenu()
addButton.menu = menu
menu.delegate = self
}
}
@IBOutlet weak var titleLabel: NSTextField!
@IBOutlet weak var tableView: RightClickTableView! {
didSet {
tableView.delegate = self
tableView.dataSource = self
}
}
private var wallets: [TokenaryWallet] {
return walletsManager.wallets
}
override func viewDidLoad() {
super.viewDidLoad()
setupAccountsMenu()
reloadHeader()
updateCellModels()
NotificationCenter.default.addObserver(self, selector: #selector(didBecomeActive), name: NSApplication.didBecomeActiveNotification, object: nil)
}
override func viewDidAppear() {
super.viewDidAppear()
blinkNewWalletCellIfNeeded()
view.window?.delegate = self
promptSafariForLegacyUsersIfNeeded()
}
private func promptSafariForLegacyUsersIfNeeded() {
guard Defaults.shouldPromptSafariForLegacyUsers else { return }
Defaults.shouldPromptSafariForLegacyUsers = false
Alert.showSafariPrompt()
}
private func callCompletion(wallet: TokenaryWallet?) {
if !didCallCompletion {
didCallCompletion = true
onSelectedWallet?(chain, wallet)
}
}
private func setupAccountsMenu() {
let menu = NSMenu()
menu.delegate = self
menu.addItem(NSMenuItem(title: Strings.copyAddress, action: #selector(didClickCopyAddress(_:)), keyEquivalent: ""))
menu.addItem(NSMenuItem(title: Strings.viewOnEtherscan, action: #selector(didClickViewOnEtherscan(_:)), keyEquivalent: ""))
menu.addItem(.separator())
menu.addItem(NSMenuItem(title: Strings.showAccountKey, action: #selector(didClickExportAccount(_:)), keyEquivalent: ""))
menu.addItem(NSMenuItem(title: Strings.removeAccount, action: #selector(didClickRemoveAccount(_:)), keyEquivalent: ""))
tableView.menu = menu
}
private func reloadHeader() {
let canSelectAccount = onSelectedWallet != nil && !wallets.isEmpty
titleLabel.stringValue = canSelectAccount ? Strings.selectAccountTwoLines : Strings.accounts
addButton.isHidden = wallets.isEmpty
chainButtonHeightConstraint.constant = canSelectAccount ? 40 : 15
chainButtonContainer.isHidden = !canSelectAccount
if canSelectAccount, chainButton.menu?.items.isEmpty == true {
let menu = NSMenu()
for mainnet in EthereumChain.allMainnets {
let item = NSMenuItem(title: mainnet.name, action: #selector(didSelectChain(_:)), keyEquivalent: "")
item.tag = mainnet.id
menu.addItem(item)
}
let submenuItem = NSMenuItem()
submenuItem.title = Strings.testnets
let submenu = NSMenu()
for testnet in EthereumChain.allTestnets {
let item = NSMenuItem(title: testnet.name, action: #selector(didSelectChain(_:)), keyEquivalent: "")
item.tag = testnet.id
submenu.addItem(item)
}
submenuItem.submenu = submenu
menu.addItem(.separator())
menu.addItem(submenuItem)
testnetsMenuItem = submenuItem
chainButton.menu = menu
}
}
@objc private func didBecomeActive() {
guard view.window?.isVisible == true else { return }
if let completion = agent.getWalletSelectionCompletionIfShouldSelect() {
onSelectedWallet = completion
}
reloadHeader()
}
@objc private func didSelectChain(_ sender: AnyObject) {
guard let menuItem = sender as? NSMenuItem,
let selectedChain = EthereumChain(rawValue: menuItem.tag) else { return }
if let index = chainButton.menu?.index(of: menuItem), index < 0 {
let submenu = menuItem.menu
submenu?.removeItem(menuItem)
if submenu?.items.isEmpty == true, let testnetsMenuItem = testnetsMenuItem {
testnetsMenuItem.menu?.removeItem(testnetsMenuItem)
self.testnetsMenuItem = nil
}
chainButton.menu?.addItem(menuItem)
chainButton.select(menuItem)
}
chain = selectedChain
}
@IBAction func addButtonTapped(_ sender: NSButton) {
let menu = sender.menu
let createItem = NSMenuItem(title: "", action: #selector(didClickCreateAccount), keyEquivalent: "")
let importItem = NSMenuItem(title: "", action: #selector(didClickImportAccount), keyEquivalent: "")
let font = NSFont.systemFont(ofSize: 21, weight: .bold)
createItem.attributedTitle = NSAttributedString(string: AddAccountOption.createNew.title, attributes: [.font: font])
importItem.attributedTitle = NSAttributedString(string: AddAccountOption.importExisting.title, attributes: [.font: font])
menu?.addItem(createItem)
menu?.addItem(importItem)
var origin = sender.frame.origin
origin.x += sender.frame.width
origin.y += sender.frame.height
menu?.popUp(positioning: nil, at: origin, in: view)
}
@objc private func didClickCreateAccount() {
let alert = Alert()
alert.messageText = Strings.backUpNewAccount
alert.informativeText = Strings.youWillSeeSecretWords
alert.alertStyle = .critical
alert.addButton(withTitle: Strings.ok)
alert.addButton(withTitle: Strings.cancel)
if alert.runModal() == .alertFirstButtonReturn {
createNewAccountAndShowSecretWords()
}
}
private func createNewAccountAndShowSecretWords() {
guard let wallet = try? walletsManager.createWallet() else { return }
newWalletId = wallet.id
reloadHeader()
updateCellModels()
tableView.reloadData()
blinkNewWalletCellIfNeeded()
showKey(wallet: wallet, mnemonic: true)
}
private func blinkNewWalletCellIfNeeded() {
guard let id = newWalletId else { return }
newWalletId = nil
guard let row = wallets.firstIndex(where: { $0.id == id }), row < cellModels.count else { return }
tableView.scrollRowToVisible(row)
(tableView.rowView(atRow: row, makeIfNecessary: true) as? AccountCellView)?.blink()
}
@objc private func didClickImportAccount() {
let importViewController = instantiate(ImportViewController.self)
importViewController.onSelectedWallet = onSelectedWallet
view.window?.contentViewController = importViewController
}
@objc private func didClickViewOnEtherscan(_ sender: AnyObject) {
let row = tableView.deselectedRow
guard row >= 0, let address = wallets[row].ethereumAddress else { return }
if let url = URL(string: "https://etherscan.io/address/\(address)") {
NSWorkspace.shared.open(url)
}
}
@objc private func didClickCopyAddress(_ sender: AnyObject) {
let row = tableView.deselectedRow
guard row >= 0, let address = wallets[row].ethereumAddress else { return }
NSPasteboard.general.clearAndSetString(address)
}
@objc private func didClickRemoveAccount(_ sender: AnyObject) {
let row = tableView.deselectedRow
guard row >= 0 else { return }
let alert = Alert()
alert.messageText = Strings.removedAccountsCantBeRecovered
alert.alertStyle = .critical
alert.addButton(withTitle: Strings.removeAnyway)
alert.addButton(withTitle: Strings.cancel)
if alert.runModal() == .alertFirstButtonReturn {
agent.askAuthentication(on: view.window, getBackTo: self, onStart: false, reason: .removeAccount) { [weak self] allowed in
Window.activateWindow(self?.view.window)
if allowed {
self?.removeAccountAtIndex(row)
}
}
}
}
@objc private func didClickExportAccount(_ sender: AnyObject) {
let row = tableView.deselectedRow
guard row >= 0 else { return }
let isMnemonic = wallets[row].isMnemonic
let alert = Alert()
alert.messageText = "\(isMnemonic ? "Secret words give" : "Private key gives") full access to your funds."
alert.alertStyle = .critical
alert.addButton(withTitle: Strings.iUnderstandTheRisks)
alert.addButton(withTitle: Strings.cancel)
if alert.runModal() == .alertFirstButtonReturn {
let reason: AuthenticationReason = isMnemonic ? .showSecretWords : .showPrivateKey
agent.askAuthentication(on: view.window, getBackTo: self, onStart: false, reason: reason) { [weak self] allowed in
Window.activateWindow(self?.view.window)
if allowed {
self?.showKey(index: row, mnemonic: isMnemonic)
}
}
}
}
private func showKey(index: Int, mnemonic: Bool) {
showKey(wallet: wallets[index], mnemonic: mnemonic)
}
private func showKey(wallet: TokenaryWallet, mnemonic: Bool) {
let secret: String
if mnemonic, let mnemonicString = try? walletsManager.exportMnemonic(wallet: wallet) {
secret = mnemonicString
} else if let data = try? walletsManager.exportPrivateKey(wallet: wallet) {
secret = data.hexString
} else {
return
}
let alert = Alert()
alert.messageText = mnemonic ? Strings.secretWords : Strings.privateKey
alert.informativeText = secret
alert.alertStyle = .informational
alert.addButton(withTitle: Strings.ok)
alert.addButton(withTitle: Strings.copy)
if alert.runModal() != .alertFirstButtonReturn {
NSPasteboard.general.clearAndSetString(secret)
}
}
private func removeAccountAtIndex(_ index: Int) {
let wallet = wallets[index]
try? walletsManager.delete(wallet: wallet)
reloadHeader()
updateCellModels()
tableView.reloadData()
}
private func updateCellModels() {
if wallets.isEmpty {
cellModels = [.addAccountOption(.createNew), .addAccountOption(.importExisting)]
tableView.shouldShowRightClickMenu = false
} else {
cellModels = Array(repeating: CellModel.wallet, count: wallets.count)
tableView.shouldShowRightClickMenu = true
}
}
}
extension AccountsListViewController: NSTableViewDelegate {
func tableView(_ tableView: NSTableView, shouldSelectRow row: Int) -> Bool {
guard tableView.selectedRow < 0 else { return false }
let model = cellModels[row]
switch model {
case .wallet:
let wallet = wallets[row]
if onSelectedWallet != nil {
callCompletion(wallet: wallet)
} else {
Timer.scheduledTimer(withTimeInterval: 0.01, repeats: false) { [weak self] _ in
var point = NSEvent.mouseLocation
point.x += 1
self?.tableView.menu?.popUp(positioning: nil, at: point, in: nil)
}
}
return true
case let .addAccountOption(addAccountOption):
switch addAccountOption {
case .createNew:
didClickCreateAccount()
case .importExisting:
didClickImportAccount()
}
return false
}
}
}
extension AccountsListViewController: NSTableViewDataSource {
func tableView(_ tableView: NSTableView, rowViewForRow row: Int) -> NSTableRowView? {
let model = cellModels[row]
switch model {
case .wallet:
let wallet = wallets[row]
let rowView = tableView.makeView(withIdentifier: NSUserInterfaceItemIdentifier("AccountCellView"), owner: self) as? AccountCellView
rowView?.setup(address: wallet.ethereumAddress ?? "")
return rowView
case let .addAccountOption(addAccountOption):
let rowView = tableView.makeView(withIdentifier: NSUserInterfaceItemIdentifier("AddAccountOptionCellView"), owner: self) as? AddAccountOptionCellView
rowView?.setup(title: addAccountOption.title)
return rowView
}
}
func tableView(_ tableView: NSTableView, heightOfRow row: Int) -> CGFloat {
if case .wallet = cellModels[row] {
return 50
} else {
return 44
}
}
func numberOfRows(in tableView: NSTableView) -> Int {
return cellModels.count
}
}
extension AccountsListViewController: NSMenuDelegate {
func menuDidClose(_ menu: NSMenu) {
if menu === addButton.menu {
menu.removeAllItems()
} else if menu === tableView.menu {
tableView.deselectedRow = tableView.selectedRow
tableView.deselectAll(nil)
}
}
}
extension AccountsListViewController: NSWindowDelegate {
func windowWillClose(_ notification: Notification) {
callCompletion(wallet: nil)
}
}