Edits: Start history

This commit is contained in:
manuroe
2019-06-28 18:16:27 +02:00
parent d4defd4118
commit ba686a2018
12 changed files with 753 additions and 0 deletions
@@ -0,0 +1,67 @@
// File created from ScreenTemplate
// $ createScreen.sh Room/EditHistory EditHistory
/*
Copyright 2019 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import Foundation
import UIKit
final class EditHistoryCoordinator: EditHistoryCoordinatorType {
// MARK: - Properties
// MARK: Private
private var editHistoryViewModel: EditHistoryViewModelType
private let editHistoryViewController: EditHistoryViewController
// MARK: Public
// Must be used only internally
var childCoordinators: [Coordinator] = []
weak var delegate: EditHistoryCoordinatorDelegate?
// MARK: - Setup
init(aggregations: MXAggregations,
roomId: String,
eventId: String) {
let editHistoryViewModel = EditHistoryViewModel(aggregations: aggregations, roomId: roomId, eventId: eventId)
let editHistoryViewController = EditHistoryViewController.instantiate(with: editHistoryViewModel)
self.editHistoryViewModel = editHistoryViewModel
self.editHistoryViewController = editHistoryViewController
}
// MARK: - Public methods
func start() {
self.editHistoryViewModel.coordinatorDelegate = self
}
func toPresentable() -> UIViewController {
return self.editHistoryViewController
}
}
// MARK: - EditHistoryViewModelCoordinatorDelegate
extension EditHistoryCoordinator: EditHistoryViewModelCoordinatorDelegate {
func editHistoryViewModelDidClose(_ viewModel: EditHistoryViewModelType) {
self.delegate?.editHistoryCoordinatorDidComplete(self)
}
}
@@ -0,0 +1,89 @@
// File created from FlowTemplate
// $ createRootCoordinator.sh Room/EditHistory EditHistory
/*
Copyright 2019 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import Foundation
@objc protocol EditHistoryCoordinatorBridgePresenterDelegate {
func editHistoryCoordinatorBridgePresenterDelegateDidComplete(_ coordinatorBridgePresenter: EditHistoryCoordinatorBridgePresenter)
}
/// EditHistoryCoordinatorBridgePresenter enables to start EditHistoryCoordinator from a view controller.
/// This bridge is used while waiting for global usage of coordinator pattern.
@objcMembers
final class EditHistoryCoordinatorBridgePresenter: NSObject {
// MARK: - Properties
// MARK: Private
private let aggregations: MXAggregations
private let roomId: String
private let eventId: String
private var coordinator: EditHistoryCoordinator?
// MARK: Public
weak var delegate: EditHistoryCoordinatorBridgePresenterDelegate?
// MARK: - Setup
init(aggregations: MXAggregations,
roomId: String,
eventId: String) {
self.aggregations = aggregations
self.roomId = roomId
self.eventId = eventId
super.init()
}
// MARK: - Public
// NOTE: Default value feature is not compatible with Objective-C.
// func present(from viewController: UIViewController, animated: Bool) {
// self.present(from: viewController, animated: animated)
// }
func present(from viewController: UIViewController, animated: Bool) {
let editHistoryCoordinator = EditHistoryCoordinator(aggregations: self.aggregations, roomId: self.roomId, eventId: self.eventId)
editHistoryCoordinator.delegate = self
viewController.present(editHistoryCoordinator.toPresentable(), animated: animated, completion: nil)
editHistoryCoordinator.start()
self.coordinator = editHistoryCoordinator
}
func dismiss(animated: Bool, completion: (() -> Void)?) {
guard let coordinator = self.coordinator else {
return
}
coordinator.toPresentable().dismiss(animated: animated) {
self.coordinator = nil
if let completion = completion {
completion()
}
}
}
}
// MARK: - EditHistoryCoordinatorDelegate
extension EditHistoryCoordinatorBridgePresenter: EditHistoryCoordinatorDelegate {
func editHistoryCoordinatorDidComplete(_ coordinator: EditHistoryCoordinatorType) {
self.delegate?.editHistoryCoordinatorBridgePresenterDelegateDidComplete(self)
}
}
@@ -0,0 +1,28 @@
// File created from ScreenTemplate
// $ createScreen.sh Room/EditHistory EditHistory
/*
Copyright 2019 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import Foundation
protocol EditHistoryCoordinatorDelegate: class {
func editHistoryCoordinatorDidComplete(_ coordinator: EditHistoryCoordinatorType)
}
/// `EditHistoryCoordinatorType` is a protocol describing a Coordinator that handle keybackup setup navigation flow.
protocol EditHistoryCoordinatorType: Coordinator, Presentable {
var delegate: EditHistoryCoordinatorDelegate? { get }
}
@@ -0,0 +1,22 @@
/*
Copyright 2019 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import Foundation
struct EditHistoryMessage {
let date: Date
let message: NSAttributedString
}
@@ -0,0 +1,25 @@
// File created from ScreenTemplate
// $ createScreen.sh Room/EditHistory EditHistory
/*
Copyright 2019 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import Foundation
/// EditHistoryViewController view actions exposed to view model
enum EditHistoryViewAction {
case loadMore
case close
}
@@ -0,0 +1,92 @@
<?xml version="1.0" encoding="UTF-8"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="V8j-Lb-PgC">
<device id="retina4_7" orientation="portrait">
<adaptation id="fullscreen"/>
</device>
<dependencies>
<deployment identifier="iOS"/>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14490.49"/>
<capability name="Safe area layout guides" minToolsVersion="9.0"/>
<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
</dependencies>
<scenes>
<!--Template Screen View Controller-->
<scene sceneID="mt5-wz-YKA">
<objects>
<viewController extendedLayoutIncludesOpaqueBars="YES" automaticallyAdjustsScrollViewInsets="NO" id="V8j-Lb-PgC" customClass="EditHistoryViewController" customModule="Riot" customModuleProvider="target" sceneMemberID="viewController">
<view key="view" contentMode="scaleToFill" id="EL9-GA-lwo">
<rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<subviews>
<scrollView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="9U2-KL-ZVA">
<rect key="frame" x="0.0" y="20" width="375" height="647"/>
<subviews>
<view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="e7g-um-WO4">
<rect key="frame" x="0.0" y="0.0" width="375" height="500"/>
<subviews>
<view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="voD-3Q-ryt">
<rect key="frame" x="0.0" y="0.0" width="375" height="500"/>
<subviews>
<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="A message" textAlignment="center" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="bxI-mu-qng">
<rect key="frame" x="20" y="86" width="335" height="108"/>
<autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
<fontDescription key="fontDescription" type="system" pointSize="15"/>
<nil key="textColor"/>
<nil key="highlightedColor"/>
</label>
<button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="DOt-5E-FjF">
<rect key="frame" x="104" y="368" width="167" height="30"/>
<autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
<state key="normal" title="OK"/>
<connections>
<action selector="okButtonAction:" destination="V8j-Lb-PgC" eventType="touchUpInside" id="uvI-tt-Nfj"/>
</connections>
</button>
</subviews>
<color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
<constraints>
<constraint firstAttribute="width" priority="750" constant="500" id="glD-Sz-73O"/>
</constraints>
</view>
</subviews>
<color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
<constraints>
<constraint firstAttribute="bottom" secondItem="voD-3Q-ryt" secondAttribute="bottom" id="63a-5e-ptU"/>
<constraint firstItem="voD-3Q-ryt" firstAttribute="centerX" secondItem="e7g-um-WO4" secondAttribute="centerX" id="P2G-mq-gQW"/>
<constraint firstAttribute="trailing" relation="greaterThanOrEqual" secondItem="voD-3Q-ryt" secondAttribute="trailing" id="QgV-SO-5yf"/>
<constraint firstItem="voD-3Q-ryt" firstAttribute="leading" relation="greaterThanOrEqual" secondItem="e7g-um-WO4" secondAttribute="leading" id="YPo-u1-PtT"/>
<constraint firstAttribute="height" constant="500" id="n8g-KW-BYU"/>
<constraint firstItem="voD-3Q-ryt" firstAttribute="top" secondItem="e7g-um-WO4" secondAttribute="top" id="rhQ-96-szL"/>
</constraints>
</view>
</subviews>
<constraints>
<constraint firstAttribute="trailing" secondItem="e7g-um-WO4" secondAttribute="trailing" id="GyG-Fh-PME"/>
<constraint firstItem="e7g-um-WO4" firstAttribute="width" secondItem="9U2-KL-ZVA" secondAttribute="width" id="Ok2-WQ-Zgc"/>
<constraint firstAttribute="bottom" secondItem="e7g-um-WO4" secondAttribute="bottom" constant="147" id="Y46-NP-zAc"/>
<constraint firstItem="e7g-um-WO4" firstAttribute="leading" secondItem="9U2-KL-ZVA" secondAttribute="leading" id="aoV-Yh-AcD"/>
<constraint firstItem="e7g-um-WO4" firstAttribute="top" secondItem="9U2-KL-ZVA" secondAttribute="top" id="pFN-bA-SHw"/>
</constraints>
</scrollView>
</subviews>
<color key="backgroundColor" red="0.94509803921568625" green="0.96078431372549022" blue="0.97254901960784312" alpha="1" colorSpace="calibratedRGB"/>
<constraints>
<constraint firstAttribute="bottom" secondItem="9U2-KL-ZVA" secondAttribute="bottom" id="7Cb-nY-CsO"/>
<constraint firstItem="9U2-KL-ZVA" firstAttribute="leading" secondItem="bFg-jh-JZB" secondAttribute="leading" id="GdQ-hK-muG"/>
<constraint firstItem="bFg-jh-JZB" firstAttribute="trailing" secondItem="9U2-KL-ZVA" secondAttribute="trailing" id="sbD-ek-vGJ"/>
<constraint firstItem="bFg-jh-JZB" firstAttribute="top" secondItem="9U2-KL-ZVA" secondAttribute="top" id="wTB-V6-IHV"/>
</constraints>
<viewLayoutGuide key="safeArea" id="bFg-jh-JZB"/>
</view>
<connections>
<outlet property="messageLabel" destination="bxI-mu-qng" id="pbX-aZ-inC"/>
<outlet property="okButton" destination="DOt-5E-FjF" id="ktw-U4-efQ"/>
<outlet property="scrollView" destination="9U2-KL-ZVA" id="ojG-2y-X7b"/>
</connections>
</viewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="zK0-v6-7Wt" userLabel="First Responder" sceneMemberID="firstResponder"/>
</objects>
<point key="canvasLocation" x="-3198" y="-647"/>
</scene>
</scenes>
</document>
@@ -0,0 +1,185 @@
// File created from ScreenTemplate
// $ createScreen.sh Room/EditHistory EditHistory
/*
Copyright 2019 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import UIKit
final class EditHistoryViewController: UIViewController {
// MARK: - Constants
private enum Constants {
static let aConstant: Int = 666
}
// MARK: - Properties
// MARK: Outlets
@IBOutlet private weak var scrollView: UIScrollView!
@IBOutlet private weak var messageLabel: UILabel!
@IBOutlet private weak var okButton: UIButton!
// MARK: Private
private var viewModel: EditHistoryViewModelType!
private var theme: Theme!
private var keyboardAvoider: KeyboardAvoider?
private var errorPresenter: MXKErrorPresentation!
private var activityPresenter: ActivityIndicatorPresenter!
// MARK: - Setup
class func instantiate(with viewModel: EditHistoryViewModelType) -> EditHistoryViewController {
let viewController = StoryboardScene.EditHistoryViewController.initialScene.instantiate()
viewController.viewModel = viewModel
viewController.theme = ThemeService.shared().theme
return viewController
}
// MARK: - Life cycle
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
self.title = "Template"
self.setupViews()
self.keyboardAvoider = KeyboardAvoider(scrollViewContainerView: self.view, scrollView: self.scrollView)
self.activityPresenter = ActivityIndicatorPresenter()
self.errorPresenter = MXKErrorAlertPresentation()
self.registerThemeServiceDidChangeThemeNotification()
self.update(theme: self.theme)
self.viewModel.viewDelegate = self
self.viewModel.process(viewAction: .loadMore)
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.keyboardAvoider?.startAvoiding()
}
override func viewDidDisappear(_ animated: Bool) {
super.viewDidDisappear(animated)
self.keyboardAvoider?.stopAvoiding()
}
override var preferredStatusBarStyle: UIStatusBarStyle {
return self.theme.statusBarStyle
}
// MARK: - Private
private func update(theme: Theme) {
self.theme = theme
self.view.backgroundColor = theme.headerBackgroundColor
if let navigationBar = self.navigationController?.navigationBar {
theme.applyStyle(onNavigationBar: navigationBar)
}
// TODO:
self.messageLabel.textColor = theme.textPrimaryColor
self.okButton.backgroundColor = theme.backgroundColor
theme.applyStyle(onButton: self.okButton)
}
private func registerThemeServiceDidChangeThemeNotification() {
NotificationCenter.default.addObserver(self, selector: #selector(themeDidChange), name: .themeServiceDidChangeTheme, object: nil)
}
@objc private func themeDidChange() {
self.update(theme: ThemeService.shared().theme)
}
private func setupViews() {
let cancelBarButtonItem = MXKBarButtonItem(title: VectorL10n.cancel, style: .plain) { [weak self] in
self?.cancelButtonAction()
}
self.navigationItem.rightBarButtonItem = cancelBarButtonItem
self.scrollView.keyboardDismissMode = .interactive
self.messageLabel.text = "VectorL10n.editHistoryTitle"
self.messageLabel.isHidden = true
}
private func render(viewState: EditHistoryViewState) {
switch viewState {
case .loading:
self.renderLoading()
case .loaded(let messages, let addedCount):
self.renderLoaded(messages: messages, addedCount: addedCount)
case .error(let error):
self.render(error: error)
}
}
private func renderLoading() {
self.activityPresenter.presentActivityIndicator(on: self.view, animated: true)
}
private func renderLoaded(messages: [EditHistoryMessage], addedCount: Int) {
self.activityPresenter.removeCurrentActivityIndicator(animated: true)
let attributedText = NSMutableAttributedString()
for message in messages {
attributedText.append(message.message)
attributedText.append(NSAttributedString(string: "\n"))
}
self.messageLabel.attributedText = attributedText
self.messageLabel.isHidden = false
}
private func render(error: Error) {
self.activityPresenter.removeCurrentActivityIndicator(animated: true)
self.errorPresenter.presentError(from: self, forError: error, animated: true, handler: nil)
}
// MARK: - Actions
@IBAction private func okButtonAction(_ sender: Any) {
self.viewModel.process(viewAction: .close)
}
private func cancelButtonAction() {
self.viewModel.process(viewAction: .close)
}
}
// MARK: - EditHistoryViewModelViewDelegate
extension EditHistoryViewController: EditHistoryViewModelViewDelegate {
func editHistoryViewModel(_ viewModel: EditHistoryViewModelType, didUpdateViewState viewSate: EditHistoryViewState) {
self.render(viewState: viewSate)
}
}
@@ -0,0 +1,128 @@
// File created from ScreenTemplate
// $ createScreen.sh Room/EditHistory EditHistory
/*
Copyright 2019 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import Foundation
final class EditHistoryViewModel: EditHistoryViewModelType {
// MARK: - Properties
// MARK: Private
private let aggregations: MXAggregations
private let roomId: String
private let eventId: String
private let messageFormattingQueue: DispatchQueue
private var nextBatch: String?
// MARK: Public
var messages: [EditHistoryMessage] = []
var operation: MXHTTPOperation?
weak var viewDelegate: EditHistoryViewModelViewDelegate?
weak var coordinatorDelegate: EditHistoryViewModelCoordinatorDelegate?
// MARK: - Setup
init(aggregations: MXAggregations,
roomId: String,
eventId: String) {
self.aggregations = aggregations
self.roomId = roomId
self.eventId = eventId
self.messageFormattingQueue = DispatchQueue(label: "\(type(of: self)).messageFormattingQueue")
}
deinit {
}
// MARK: - Public
func process(viewAction: EditHistoryViewAction) {
switch viewAction {
case .loadMore:
self.loadMoreHistory()
case .close:
self.coordinatorDelegate?.editHistoryViewModelDidClose(self)
}
}
// MARK: - Private
func loadMoreHistory() {
if self.operation != nil {
print("[EditHistoryViewModel] loadMoreHistory: operation already pending")
return
}
self.update(viewState: .loading)
self.operation = self.aggregations.replaceEvents(forEvent: self.eventId, inRoom: self.roomId, from: self.nextBatch, limit: 10, success: { [weak self] (response) in
guard let sself = self else {
return
}
sself.nextBatch = response.nextBatch
sself.operation = nil
sself.process(editEvents: response.chunk)
}, failure: { [weak self] error in
guard let sself = self else {
return
}
sself.operation = nil
sself.update(viewState: .error(error))
})
}
func process(editEvents: [MXEvent]) {
self.messageFormattingQueue.async {
let newMessages = editEvents.reversed()
.compactMap { (editEvent) -> EditHistoryMessage? in
return self.process(editEvent: editEvent)
}
if newMessages.count > 0 {
DispatchQueue.main.async {
self.messages = newMessages + self.messages
self.update(viewState: .loaded(messages: self.messages, addedCount: newMessages.count))
}
}
}
}
func process(editEvent: MXEvent) -> EditHistoryMessage? {
guard let body: String = (editEvent.content?["m.new_content"] as? [String: Any])?["body"] as? String else {
print("[EditHistoryViewModel] processEditEvent: invalid edit event: \(editEvent.eventId ?? "")")
return nil
}
// TODO: Using MXKEventFormatter
return EditHistoryMessage(date: Date(), message: NSAttributedString(string: body))
}
private func update(viewState: EditHistoryViewState) {
self.viewDelegate?.editHistoryViewModel(self, didUpdateViewState: viewState)
}
}
@@ -0,0 +1,38 @@
// File created from ScreenTemplate
// $ createScreen.sh Room/EditHistory EditHistory
/*
Copyright 2019 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import Foundation
protocol EditHistoryViewModelViewDelegate: class {
func editHistoryViewModel(_ viewModel: EditHistoryViewModelType, didUpdateViewState viewSate: EditHistoryViewState)
}
protocol EditHistoryViewModelCoordinatorDelegate: class {
func editHistoryViewModelDidClose(_ viewModel: EditHistoryViewModelType)
}
/// Protocol describing the view model used by `EditHistoryViewController`
protocol EditHistoryViewModelType {
var messages: [EditHistoryMessage] { get set }
var viewDelegate: EditHistoryViewModelViewDelegate? { get set }
var coordinatorDelegate: EditHistoryViewModelCoordinatorDelegate? { get set }
func process(viewAction: EditHistoryViewAction)
}
@@ -0,0 +1,26 @@
// File created from ScreenTemplate
// $ createScreen.sh Room/EditHistory EditHistory
/*
Copyright 2019 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import Foundation
/// EditHistoryViewController view state
enum EditHistoryViewState {
case loading
case loaded(messages: [EditHistoryMessage], addedCount: Int)
case error(Error)
}