Signal-iOS/Signal/src/ViewControllers/Stickers/ManageStickersViewController.swift
2021-04-06 13:57:08 -03:00

602 lines
23 KiB
Swift

//
// Copyright (c) 2021 Open Whisper Systems. All rights reserved.
//
import Foundation
import SignalServiceKit
private class StickerPackActionButton: UIView {
private let block: () -> Void
@available(*, unavailable, message: "use other constructor instead.")
required public init?(coder aDecoder: NSCoder) {
notImplemented()
}
init(actionIconName: String, block: @escaping () -> Void) {
self.block = block
super.init(frame: .zero)
configure(actionIconName: actionIconName)
}
private func configure(actionIconName: String) {
let actionIconSize: CGFloat = 20
let actionCircleSize: CGFloat = 32
let actionCircleView = CircleView(diameter: actionCircleSize)
actionCircleView.backgroundColor = Theme.washColor
let actionIcon = UIImage(named: actionIconName)?.withRenderingMode(.alwaysTemplate)
let actionIconView = UIImageView(image: actionIcon)
actionIconView.tintColor = Theme.secondaryTextAndIconColor
actionCircleView.addSubview(actionIconView)
actionIconView.autoCenterInSuperview()
actionIconView.autoSetDimensions(to: CGSize(square: actionIconSize))
self.addSubview(actionCircleView)
actionCircleView.autoPinEdgesToSuperviewEdges()
isUserInteractionEnabled = true
addGestureRecognizer(UITapGestureRecognizer(target: self,
action: #selector(didTapButton)))
}
@objc
func didTapButton(sender: UIGestureRecognizer) {
block()
}
}
// MARK: -
@objc
public class ManageStickersViewController: OWSTableViewController2 {
// MARK: Initializers
@objc
public required override init() {
super.init()
}
deinit {
NotificationCenter.default.removeObserver(self)
}
// MARK: - View Lifecycle
override public func loadView() {
super.loadView()
navigationItem.title = NSLocalizedString("STICKERS_MANAGE_VIEW_TITLE", comment: "Title for the 'manage stickers' view.")
navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(didPressDismiss))
if FeatureFlags.stickerPackOrdering {
navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .edit, target: self, action: #selector(didPressEditButton))
}
}
override public func viewDidLoad() {
super.viewDidLoad()
NotificationCenter.default.addObserver(self,
selector: #selector(packsDidChange),
name: StickerManager.packsDidChange,
object: nil)
defaultSeparatorInsetLeading = Self.cellHInnerMargin + iconSize + iconSpacing
updateState()
StickerManager.refreshContents()
}
private var pendingModalVC: ModalActivityIndicatorViewController?
private var needsStateUpdate = false {
didSet {
if needsStateUpdate {
updateEvent.requestNotify()
}
}
}
private var needsTableUpdate = false {
didSet {
if needsTableUpdate {
updateEvent.requestNotify()
}
}
}
private lazy var updateEvent: DebouncedEvent = {
DebouncedEvent(maxFrequencySeconds: 0.75, onQueue: .main) { [weak self] in
guard let self = self else { return }
if self.needsStateUpdate {
self.updateState()
} else if self.needsTableUpdate {
self.buildTable()
}
}
}()
private var installedStickerPackSources = [StickerPackDataSource]()
private var availableBuiltInStickerPackSources = [StickerPackDataSource]()
private var knownStickerPackSources = [StickerPackDataSource]()
private func updateState() {
// If we're presenting a modal because the user tapped install, dismiss it.
pendingModalVC?.dismiss {}
pendingModalVC = nil
// We need to recyle data sources to maintain continuity.
var oldInstalledSources = [StickerPackInfo: StickerPackDataSource]()
var oldTransientSources = [StickerPackInfo: StickerPackDataSource]()
let updateMapWithOldSources = { (map: inout [StickerPackInfo: StickerPackDataSource], sources: [StickerPackDataSource]) in
for source in sources {
guard let info = source.info else {
owsFailDebug("Source missing info.")
continue
}
map[info] = source
}
}
updateMapWithOldSources(&oldInstalledSources, installedStickerPackSources)
updateMapWithOldSources(&oldTransientSources, availableBuiltInStickerPackSources)
updateMapWithOldSources(&oldTransientSources, knownStickerPackSources)
var installedStickerPacks = [StickerPack]()
var availableBuiltInStickerPacks = [StickerPack]()
var availableKnownStickerPacks = [KnownStickerPack]()
self.databaseStorage.read { (transaction) in
let allPacks = StickerManager.allStickerPacks(transaction: transaction)
let allPackInfos = allPacks.map { $0.info }
// Only show packs with installed covers.
let packsWithCovers = allPacks.filter {
StickerManager.isStickerInstalled(stickerInfo: $0.coverInfo,
transaction: transaction)
}
// Sort sticker packs by "date saved, descending" so that we feature
// packs that the user has just learned about.
installedStickerPacks = packsWithCovers.filter { $0.isInstalled }
availableBuiltInStickerPacks = packsWithCovers.filter { !$0.isInstalled && StickerManager.isDefaultStickerPack($0.info) }
let allKnownStickerPacks = StickerManager.allKnownStickerPacks(transaction: transaction)
availableKnownStickerPacks = allKnownStickerPacks.filter { !allPackInfos.contains($0.info) }
}
let installedSource = { (info: StickerPackInfo) -> StickerPackDataSource in
if let source = oldInstalledSources[info] {
return source
}
let source = InstalledStickerPackDataSource(stickerPackInfo: info)
source.add(delegate: self)
return source
}
let transientSource = { (info: StickerPackInfo) -> StickerPackDataSource in
if let source = oldTransientSources[info] {
return source
}
// Don't download all stickers; we only need covers for this view.
let source = TransientStickerPackDataSource(stickerPackInfo: info,
shouldDownloadAllStickers: false)
source.add(delegate: self)
return source
}
let sortAvailablePacks = { (pack0: StickerPack, pack1: StickerPack) -> Bool in
return pack0.dateCreated > pack1.dateCreated
}
let sortKnownPacks = { (pack0: KnownStickerPack, pack1: KnownStickerPack) -> Bool in
return pack0.dateCreated > pack1.dateCreated
}
self.installedStickerPackSources = installedStickerPacks.sorted {
$0.dateCreated > $1.dateCreated
}.map { installedSource($0.info) }
self.availableBuiltInStickerPackSources = availableBuiltInStickerPacks.sorted(by: sortAvailablePacks)
.map { transientSource($0.info) }
self.knownStickerPackSources = availableKnownStickerPacks.sorted(by: sortKnownPacks)
.map { transientSource($0.info) }
needsStateUpdate = false
buildTable()
}
private func buildTable() {
let contents = OWSTableContents()
let installedSection = OWSTableSection()
installedSection.headerTitle = NSLocalizedString("STICKERS_MANAGE_VIEW_INSTALLED_PACKS_SECTION_TITLE", comment: "Title for the 'installed stickers' section of the 'manage stickers' view.")
if installedStickerPackSources.count < 1 {
let text = NSLocalizedString("STICKERS_MANAGE_VIEW_NO_INSTALLED_PACKS", comment: "Label indicating that the user has no installed sticker packs.")
installedSection.add(buildEmptySectionItem(labelText: text))
}
for dataSource in installedStickerPackSources {
installedSection.add(OWSTableItem(customCellBlock: { [weak self] in
guard let self = self else {
return UITableViewCell()
}
return self.buildTableCell(installedStickerPack: dataSource)
},
actionBlock: { [weak self] in
guard let packInfo = dataSource.info else {
owsFailDebug("Source missing info.")
return
}
self?.show(packInfo: packInfo)
}))
}
contents.addSection(installedSection)
let itemForAvailablePack = { (dataSource: StickerPackDataSource) -> OWSTableItem in
OWSTableItem(customCellBlock: { [weak self] in
guard let self = self else {
return UITableViewCell()
}
return self.buildTableCell(availableStickerPack: dataSource)
},
actionBlock: { [weak self] in
guard let packInfo = dataSource.info else {
owsFailDebug("Source missing info.")
return
}
self?.show(packInfo: packInfo)
})
}
if availableBuiltInStickerPackSources.count > 0 {
let section = OWSTableSection()
section.headerTitle = NSLocalizedString("STICKERS_MANAGE_VIEW_AVAILABLE_BUILT_IN_PACKS_SECTION_TITLE", comment: "Title for the 'available built-in stickers' section of the 'manage stickers' view.")
for dataSource in availableBuiltInStickerPackSources {
section.add(itemForAvailablePack(dataSource))
}
contents.addSection(section)
}
// Sticker packs whose manifest is available.
var loadedKnownStickerPackSources = [StickerPackDataSource]()
// Sticker packs whose manifest is downloading.
var loadingKnownStickerPackSources = [StickerPackDataSource]()
// Sticker packs whose manifest download failed permanently.
var failedKnownStickerPackSources = [StickerPackDataSource]()
for source in knownStickerPackSources {
guard source.getStickerPack() == nil else {
// Already loaded.
loadedKnownStickerPackSources.append(source)
continue
}
guard let info = source.info else {
owsFailDebug("Known source missing info.")
continue
}
// Hide sticker packs whose download failed permanently.
let isFailed = StickerManager.isStickerPackMissing(stickerPackInfo: info)
if isFailed {
failedKnownStickerPackSources.append(source)
} else {
loadingKnownStickerPackSources.append(source)
}
}
let knownSection = OWSTableSection()
knownSection.headerTitle = NSLocalizedString("STICKERS_MANAGE_VIEW_AVAILABLE_KNOWN_PACKS_SECTION_TITLE", comment: "Title for the 'available known stickers' section of the 'manage stickers' view.")
if knownStickerPackSources.count < 1 {
let text = NSLocalizedString("STICKERS_MANAGE_VIEW_NO_KNOWN_PACKS", comment: "Label indicating that the user has no known sticker packs.")
knownSection.add(buildEmptySectionItem(labelText: text))
}
for dataSource in loadedKnownStickerPackSources {
knownSection.add(itemForAvailablePack(dataSource))
}
if loadingKnownStickerPackSources.count > 0 {
let text = NSLocalizedString("STICKERS_MANAGE_VIEW_LOADING_KNOWN_PACKS",
comment: "Label indicating that one or more known sticker packs is loading.")
knownSection.add(buildEmptySectionItem(labelText: text))
} else if failedKnownStickerPackSources.count > 0 {
let text = NSLocalizedString("STICKERS_MANAGE_VIEW_FAILED_KNOWN_PACKS",
comment: "Label indicating that one or more known sticker packs failed to load.")
knownSection.add(buildEmptySectionItem(labelText: text))
}
contents.addSection(knownSection)
self.contents = contents
needsTableUpdate = false
}
private func buildTableCell(installedStickerPack dataSource: StickerPackDataSource) -> UITableViewCell {
let actionIconName = CurrentAppContext().isRTL ? "reply-filled-24" : "reply-filled-reversed-24"
return buildTableCell(dataSource: dataSource,
actionIconName: actionIconName) { [weak self] in
guard let packInfo = dataSource.info else {
owsFailDebug("Source missing info.")
return
}
self?.share(packInfo: packInfo)
}
}
private func buildTableCell(availableStickerPack dataSource: StickerPackDataSource) -> UITableViewCell {
if let stickerPack = dataSource.getStickerPack() {
let actionIconName = Theme.iconName(.messageActionSave)
return buildTableCell(dataSource: dataSource,
actionIconName: actionIconName) { [weak self] in
self?.install(stickerPack: stickerPack)
}
} else {
// Hide "install" button if manifest isn't downloaded yet.
return buildTableCell(dataSource: dataSource,
actionIconName: nil) { }
}
}
private let reusableCoverViewCache = NSCache<NSData, StickerReusableView>()
private func reusableCoverView(forDataSource dataSource: StickerPackDataSource) -> StickerReusableView? {
guard let packId = dataSource.info?.packId else { return nil }
let view: StickerReusableView = {
if let view = reusableCoverViewCache.object(forKey: packId as NSData) { return view }
let view = StickerReusableView()
reusableCoverViewCache.setObject(view, forKey: packId as NSData)
return view
}()
guard !view.hasStickerView else { return view }
guard let stickerInfo = dataSource.installedCoverInfo,
let imageView = imageView(forStickerInfo: stickerInfo, dataSource: dataSource) else {
view.showPlaceholder()
return view
}
view.configure(with: imageView)
return view
}
private let iconSize: CGFloat = 56
private let iconSpacing: CGFloat = 12
private func buildTableCell(dataSource: StickerPackDataSource,
actionIconName: String?,
block: @escaping () -> Void) -> UITableViewCell {
let cell = OWSTableItem.newCell()
guard let packInfo = dataSource.info else {
owsFailDebug("Source missing info.")
return cell
}
let titleValue = dataSource.title?.filterForDisplay
let authorNameValue = dataSource.author?.filterForDisplay
let iconView = reusableCoverView(forDataSource: dataSource) ?? UIView()
iconView.autoSetDimensions(to: CGSize(square: iconSize))
let title: String
if let titleValue = titleValue?.ows_stripped(),
titleValue.count > 0 {
title = titleValue
} else {
title = NSLocalizedString("STICKERS_PACK_DEFAULT_TITLE", comment: "Default title for sticker packs.")
}
let titleLabel = UILabel()
titleLabel.text = title
titleLabel.font = UIFont.ows_dynamicTypeBody.ows_semibold
titleLabel.textColor = Theme.primaryTextColor
titleLabel.lineBreakMode = .byTruncatingTail
let textStack = UIStackView(arrangedSubviews: [
titleLabel
])
textStack.axis = .vertical
textStack.alignment = .leading
textStack.spacing = 4
textStack.setContentHuggingHorizontalLow()
textStack.setCompressionResistanceHorizontalLow()
// TODO: Should we show a default author name?
let isDefaultStickerPack = StickerManager.isDefaultStickerPack(packInfo)
var authorViews = [UIView]()
if isDefaultStickerPack {
let builtInPackView = UIImageView()
builtInPackView.setTemplateImageName("check-circle-filled-16", tintColor: Theme.accentBlueColor)
builtInPackView.setCompressionResistanceHigh()
builtInPackView.setContentHuggingHigh()
authorViews.append(builtInPackView)
}
if let authorName = authorNameValue?.ows_stripped(),
authorName.count > 0 {
let authorLabel = UILabel()
authorLabel.text = authorName
authorLabel.font = isDefaultStickerPack ? UIFont.ows_dynamicTypeCaption1.ows_semibold : UIFont.ows_dynamicTypeCaption1
authorLabel.textColor = isDefaultStickerPack ? Theme.accentBlueColor : Theme.secondaryTextAndIconColor
authorLabel.lineBreakMode = .byTruncatingTail
authorViews.append(authorLabel)
}
if authorViews.count > 0 {
let authorStack = UIStackView(arrangedSubviews: authorViews)
authorStack.axis = .horizontal
authorStack.alignment = .center
authorStack.spacing = 4
textStack.addArrangedSubview(authorStack)
}
var subviews: [UIView] = [
iconView,
textStack
]
if let actionIconName = actionIconName {
let actionButton = StickerPackActionButton(actionIconName: actionIconName, block: block)
subviews.append(actionButton)
}
let stack = UIStackView(arrangedSubviews: subviews)
stack.axis = .horizontal
stack.alignment = .center
stack.spacing = iconSpacing
cell.contentView.addSubview(stack)
stack.autoPinEdgesToSuperviewMargins()
return cell
}
private func imageView(forStickerInfo stickerInfo: StickerInfo,
dataSource: StickerPackDataSource) -> UIView? {
StickerView.stickerView(forStickerInfo: stickerInfo, dataSource: dataSource)
}
private func buildEmptySectionItem(labelText: String) -> OWSTableItem {
return OWSTableItem(customCellBlock: { [weak self] in
guard let self = self else {
return UITableViewCell()
}
return self.buildEmptySectionCell(labelText: labelText)
})
}
private func buildEmptySectionCell(labelText: String) -> UITableViewCell {
let cell = OWSTableItem.newCell()
let label = UILabel()
label.text = labelText
label.font = UIFont.ows_dynamicTypeCaption1
label.textColor = Theme.secondaryTextAndIconColor
label.textAlignment = .center
label.numberOfLines = 0
label.lineBreakMode = .byWordWrapping
label.setCompressionResistanceHigh()
label.setContentHuggingHigh()
cell.contentView.addSubview(label)
label.autoPinEdgesToSuperviewMargins()
return cell
}
// MARK: Events
private func show(packInfo: StickerPackInfo) {
AssertIsOnMainThread()
Logger.verbose("")
let packView = StickerPackViewController(stickerPackInfo: packInfo)
packView.present(from: self, animated: true)
}
// We need to retain a link to the send flow during the send flow.
private var sendMessageFlow: SendMessageFlow?
private func share(packInfo: StickerPackInfo) {
AssertIsOnMainThread()
Logger.verbose("")
let packUrl = packInfo.shareUrl()
guard let navigationController = self.navigationController else {
owsFailDebug("Missing navigationController.")
return
}
let messageBody = MessageBody(text: packUrl, ranges: .empty)
let unapprovedContent = SendMessageUnapprovedContent.text(messageBody: messageBody)
let sendMessageFlow = SendMessageFlow(flowType: .`default`,
unapprovedContent: unapprovedContent,
useConversationComposeForSingleRecipient: true,
navigationController: navigationController,
delegate: self)
// Retain the flow until it is complete.
self.sendMessageFlow = sendMessageFlow
}
private func install(stickerPack: StickerPack) {
AssertIsOnMainThread()
Logger.verbose("")
let modalVC = ModalActivityIndicatorViewController(canCancel: false, presentationDelay: 0)
modalVC.modalPresentationStyle = .overFullScreen
present(modalVC, animated: false, completion: nil)
// This will be dismissed once we receive a sticker pack update notification from StickerManager
pendingModalVC = modalVC
self.databaseStorage.asyncWrite { transaction in
StickerManager.installStickerPack(stickerPack: stickerPack,
wasLocallyInitiated: true,
transaction: transaction)
}
// or... if 6s have passed. just to be safe.
DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(6)) { [weak self] in
// If the current modal isn't the one we created, we can ignore it
guard modalVC == self?.pendingModalVC else { return }
if self?.reachabilityManager.isReachable == true {
owsFailDebug("Expected to hear back from StickerManager about a newly installed sticker pack")
}
self?.updateState()
}
}
@objc func packsDidChange() {
AssertIsOnMainThread()
Logger.verbose("")
needsStateUpdate = true
}
@objc
private func didPressEditButton(sender: UIButton) {
AssertIsOnMainThread()
Logger.verbose("")
// TODO:
}
@objc
private func didPressDismiss(sender: UIButton) {
AssertIsOnMainThread()
Logger.verbose("")
dismiss(animated: true)
}
}
// MARK: -
extension ManageStickersViewController: StickerPackDataSourceDelegate {
public func stickerPackDataDidChange() {
AssertIsOnMainThread()
needsTableUpdate = true
}
}
// MARK: -
extension ManageStickersViewController: SendMessageDelegate {
public func sendMessageFlowDidComplete(threads: [TSThread]) {
AssertIsOnMainThread()
sendMessageFlow = nil
navigationController?.popToViewController(self, animated: true)
}
public func sendMessageFlowDidCancel() {
AssertIsOnMainThread()
sendMessageFlow = nil
navigationController?.popToViewController(self, animated: true)
}
}