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try? changed to try with error handling

This commit is contained in:
Stuart Breckenridge 2021-09-21 09:22:45 +08:00
parent 78e0595708
commit c29afd2677
7 changed files with 106 additions and 86 deletions
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162
Mac/AppDelegate.swift
View File

@ -126,7 +126,7 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSUserInterfaceValidations,
NotificationCenter.default.addObserver(self, selector: #selector(unreadCountDidChange(_:)), name: .UnreadCountDidChange, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(inspectableObjectsDidChange(_:)), name: .InspectableObjectsDidChange, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(importDownloadedTheme(_:)), name: .didEndDownloadingTheme, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(themeImportError(_:)), name: .didEndDownloadingThemeWithError, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(themeImportError(_:)), name: .didFailToImportThemeWithError, object: nil)
NSWorkspace.shared.notificationCenter.addObserver(self, selector: #selector(didWakeNotification(_:)), name: NSWorkspace.didWakeNotification, object: nil)
appDelegate = self
@ -811,88 +811,94 @@ internal extension AppDelegate {
groupArticlesByFeedMenuItem.state = groupByFeedEnabled ? .on : .off
}
func importTheme(filename: String) throws {
func importTheme(filename: String) {
guard let window = mainWindowController?.window else { return }
let theme = try ArticleTheme(path: filename)
let alert = NSAlert()
alert.alertStyle = .informational
do {
let theme = try ArticleTheme(path: filename)
let alert = NSAlert()
alert.alertStyle = .informational
let localizedMessageText = NSLocalizedString("Install theme “%@” by %@?", comment: "Theme message text")
alert.messageText = NSString.localizedStringWithFormat(localizedMessageText as NSString, theme.name, theme.creatorName) as String
var attrs = [NSAttributedString.Key : Any]()
attrs[.font] = NSFont.systemFont(ofSize: NSFont.smallSystemFontSize)
attrs[.foregroundColor] = NSColor.textColor
if #available(macOS 11.0, *) {
let titleParagraphStyle = NSMutableParagraphStyle()
titleParagraphStyle.alignment = .center
attrs[.paragraphStyle] = titleParagraphStyle
}
let websiteText = NSMutableAttributedString()
websiteText.append(NSAttributedString(string: NSLocalizedString("Author's Website", comment: "Author's Website"), attributes: attrs))
if #available(macOS 11.0, *) {
websiteText.append(NSAttributedString(string: "\n"))
} else {
websiteText.append(NSAttributedString(string: " "))
}
attrs[.link] = theme.creatorHomePage
websiteText.append(NSAttributedString(string: theme.creatorHomePage, attributes: attrs))
let textViewWidth: CGFloat
if #available(macOS 11.0, *) {
textViewWidth = 200
} else {
textViewWidth = 400
}
let textView = NSTextView(frame: CGRect(x: 0, y: 0, width: textViewWidth, height: 15))
textView.isEditable = false
textView.drawsBackground = false
textView.textStorage?.setAttributedString(websiteText)
alert.accessoryView = textView
alert.addButton(withTitle: NSLocalizedString("Install Theme", comment: "Install Theme"))
alert.addButton(withTitle: NSLocalizedString("Cancel", comment: "Cancel Install Theme"))
let localizedMessageText = NSLocalizedString("Install theme “%@” by %@?", comment: "Theme message text")
alert.messageText = NSString.localizedStringWithFormat(localizedMessageText as NSString, theme.name, theme.creatorName) as String
func importTheme() {
do {
try ArticleThemesManager.shared.importTheme(filename: filename)
confirmImportSuccess(themeName: theme.name)
} catch {
NSApplication.shared.presentError(error)
var attrs = [NSAttributedString.Key : Any]()
attrs[.font] = NSFont.systemFont(ofSize: NSFont.smallSystemFontSize)
attrs[.foregroundColor] = NSColor.textColor
if #available(macOS 11.0, *) {
let titleParagraphStyle = NSMutableParagraphStyle()
titleParagraphStyle.alignment = .center
attrs[.paragraphStyle] = titleParagraphStyle
}
let websiteText = NSMutableAttributedString()
websiteText.append(NSAttributedString(string: NSLocalizedString("Author's Website", comment: "Author's Website"), attributes: attrs))
if #available(macOS 11.0, *) {
websiteText.append(NSAttributedString(string: "\n"))
} else {
websiteText.append(NSAttributedString(string: " "))
}
attrs[.link] = theme.creatorHomePage
websiteText.append(NSAttributedString(string: theme.creatorHomePage, attributes: attrs))
let textViewWidth: CGFloat
if #available(macOS 11.0, *) {
textViewWidth = 200
} else {
textViewWidth = 400
}
let textView = NSTextView(frame: CGRect(x: 0, y: 0, width: textViewWidth, height: 15))
textView.isEditable = false
textView.drawsBackground = false
textView.textStorage?.setAttributedString(websiteText)
alert.accessoryView = textView
alert.addButton(withTitle: NSLocalizedString("Install Theme", comment: "Install Theme"))
alert.addButton(withTitle: NSLocalizedString("Cancel", comment: "Cancel Install Theme"))
func importTheme() {
do {
try ArticleThemesManager.shared.importTheme(filename: filename)
confirmImportSuccess(themeName: theme.name)
} catch {
NSApplication.shared.presentError(error)
}
}
alert.beginSheetModal(for: window) { result in
if result == NSApplication.ModalResponse.alertFirstButtonReturn {
if ArticleThemesManager.shared.themeExists(filename: filename) {
let alert = NSAlert()
alert.alertStyle = .warning
let localizedMessageText = NSLocalizedString("The theme “%@” already exists. Overwrite it?", comment: "Overwrite theme")
alert.messageText = NSString.localizedStringWithFormat(localizedMessageText as NSString, theme.name) as String
alert.addButton(withTitle: NSLocalizedString("Overwrite", comment: "Overwrite"))
alert.addButton(withTitle: NSLocalizedString("Cancel", comment: "Cancel Install Theme"))
alert.beginSheetModal(for: window) { result in
if result == NSApplication.ModalResponse.alertFirstButtonReturn {
importTheme()
}
}
} else {
importTheme()
}
}
}
} catch {
NotificationCenter.default.post(name: .didFailToImportThemeWithError, object: nil, userInfo: ["error" : error])
}
alert.beginSheetModal(for: window) { result in
if result == NSApplication.ModalResponse.alertFirstButtonReturn {
if ArticleThemesManager.shared.themeExists(filename: filename) {
let alert = NSAlert()
alert.alertStyle = .warning
let localizedMessageText = NSLocalizedString("The theme “%@” already exists. Overwrite it?", comment: "Overwrite theme")
alert.messageText = NSString.localizedStringWithFormat(localizedMessageText as NSString, theme.name) as String
alert.addButton(withTitle: NSLocalizedString("Overwrite", comment: "Overwrite"))
alert.addButton(withTitle: NSLocalizedString("Cancel", comment: "Cancel Install Theme"))
alert.beginSheetModal(for: window) { result in
if result == NSApplication.ModalResponse.alertFirstButtonReturn {
importTheme()
}
}
} else {
importTheme()
}
}
}
}
func confirmImportSuccess(themeName: String) {
@ -918,8 +924,8 @@ internal extension AppDelegate {
DispatchQueue.main.async {
let alert = NSAlert()
alert.alertStyle = .warning
alert.messageText = NSLocalizedString("Theme Download Error", comment: "Theme download error")
alert.informativeText = NSLocalizedString("This theme cannot be downloaded due to the following error: \(error.localizedDescription)", comment: "Theme download error information")
alert.messageText = NSLocalizedString("Theme Error", comment: "Theme download error")
alert.informativeText = NSLocalizedString("This theme cannot be imported due to the following error: \(error.localizedDescription)", comment: "Theme download error information")
alert.addButton(withTitle: NSLocalizedString("OK", comment: "OK"))
alert.beginSheetModal(for: window)
}

2
Mac/Scriptability/AppDelegate+Scriptability.swift
View File

@ -63,7 +63,7 @@ extension AppDelegate : AppDelegateAppleEvents {
do {
try ArticleThemeDownloader.shared.handleFile(at: location)
} catch {
NotificationCenter.default.post(name: .didEndDownloadingThemeWithError, object: nil, userInfo: ["error": error])
NotificationCenter.default.post(name: .didFailToImportThemeWithError, object: nil, userInfo: ["error": error])
}
}
task.resume()

2
Shared/ArticleStyles/ArticleTheme+Notifications.swift
View File

@ -11,5 +11,5 @@ import Foundation
extension Notification.Name {
static let didBeginDownloadingTheme = Notification.Name("didBeginDownloadingTheme")
static let didEndDownloadingTheme = Notification.Name("didEndDownloadingTheme")
static let didEndDownloadingThemeWithError = Notification.Name("didEndDownloadingThemeWithError")
static let didFailToImportThemeWithError = Notification.Name("didFailToImportThemeWithError")
}

9
Shared/ArticleStyles/ArticleThemesManager.swift
View File

@ -133,8 +133,13 @@ private extension ArticleThemesManager {
guard let path = pathForThemeName(themeName, folder: folderPath) else {
return nil
}
return try? ArticleTheme(path: path)
do {
return try ArticleTheme(path: path)
} catch {
NotificationCenter.default.post(name: .didFailToImportThemeWithError, object: nil, userInfo: ["error": error])
return nil
}
}
func defaultArticleTheme() -> ArticleTheme {

9
iOS/SceneCoordinator.swift
View File

@ -324,7 +324,7 @@ class SceneCoordinator: NSObject, UndoableCommandRunner, UnreadCountProvider {
NotificationCenter.default.addObserver(self, selector: #selector(accountDidDownloadArticles(_:)), name: .AccountDidDownloadArticles, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(willEnterForeground(_:)), name: UIApplication.willEnterForegroundNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(importDownloadedTheme(_:)), name: .didEndDownloadingTheme, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(themeDownloadDidFail(_:)), name: .didEndDownloadingThemeWithError, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(themeDownloadDidFail(_:)), name: .didFailToImportThemeWithError, object: nil)
}
func start(for size: CGSize) -> UIViewController {
@ -1317,7 +1317,12 @@ class SceneCoordinator: NSObject, UndoableCommandRunner, UnreadCountProvider {
}
func importTheme(filename: String) {
try? ArticleThemeImporter.importTheme(controller: rootSplitViewController, filename: filename);
do {
try ArticleThemeImporter.importTheme(controller: rootSplitViewController, filename: filename)
} catch {
NotificationCenter.default.post(name: .didFailToImportThemeWithError, object: nil, userInfo: ["error" : error])
}
}
}

2
iOS/SceneDelegate.swift
View File

@ -190,7 +190,7 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
do {
try ArticleThemeDownloader.shared.handleFile(at: location)
} catch {
NotificationCenter.default.post(name: .didEndDownloadingThemeWithError, object: nil, userInfo: ["error": error])
NotificationCenter.default.post(name: .didFailToImportThemeWithError, object: nil, userInfo: ["error": error])
}
}
task.resume()

6
iOS/Settings/ArticleThemesTableViewController.swift
View File

@ -112,7 +112,11 @@ extension ArticleThemesTableViewController: UIDocumentPickerDelegate {
func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
guard let url = urls.first else { return }
try? ArticleThemeImporter.importTheme(controller: self, filename: url.standardizedFileURL.path)
do {
try ArticleThemeImporter.importTheme(controller: self, filename: url.standardizedFileURL.path)
} catch {
NotificationCenter.default.post(name: .didFailToImportThemeWithError, object: nil, userInfo: ["error": error])
}
}
}