Theme Import/Opening Changes

Mac:
- Better error messages
- The alert displayed contains an additional button to open the theme's folder (when clicked it will not dismiss the alert).

Mac/AppDelegate.swift

@@ -107,6 +107,8 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSUserInterfaceValidations,
 	private var softwareUpdater: SPUUpdater!
 	private var crashReporter: PLCrashReporter!
 	#endif
+	
+	private var themeImportPath: String?
 
 	override init() {
 		NSWindow.allowsAutomaticWindowTabbing = false
@@ -890,15 +892,11 @@ internal extension AppDelegate {
 					} else {
 						importTheme()
 					}
-
 				}
 			}
 		} catch {
-			NotificationCenter.default.post(name: .didFailToImportThemeWithError, object: nil, userInfo: ["error" : error])
+			NotificationCenter.default.post(name: .didFailToImportThemeWithError, object: nil, userInfo: ["error" : error, "path": filename])
 		}
-		
-		
-		
 	}
 	
 	func confirmImportSuccess(themeName: String) {
@@ -921,16 +919,16 @@ internal extension AppDelegate {
 			  let window = mainWindowController?.window else {
 				  return
 			  }
-		
+		themeImportPath = userInfo["path"] as? String
 		var informativeText: String = ""
 		if let decodingError = error as? DecodingError {
 			switch decodingError {
 			case .typeMismatch(let type, _):
-				informativeText = "Type '\(type)' mismatch."
+				informativeText = "the type—'\(type)'—is mismatched."
 			case .valueNotFound(let value, _):
-				informativeText = "Value '\(value)' not found."
+				informativeText = "the value—'\(value)'—is not found."
 			case .keyNotFound(let codingKey, _):
-				informativeText = "Key '\(codingKey.stringValue)' not found."
+				informativeText = "the key—'\(codingKey.stringValue)'—is not found."
 			case .dataCorrupted( _):
 				informativeText = error.localizedDescription
 			default:
@@ -944,9 +942,25 @@ internal extension AppDelegate {
 			let alert = NSAlert()
 			alert.alertStyle = .warning
 			alert.messageText = NSLocalizedString("Theme Error", comment: "Theme download error")
-			alert.informativeText = NSLocalizedString("This theme cannot be imported due to the following error: \(informativeText)", comment: "Theme download error information")
+			alert.informativeText = NSLocalizedString("This theme cannot be used because \(informativeText)", comment: "Theme download error information")
+			alert.addButton(withTitle: NSLocalizedString("Open Theme Folder", comment: "Open Theme Folder"))
 			alert.addButton(withTitle: NSLocalizedString("OK", comment: "OK"))
-			alert.beginSheetModal(for: window)
+			
+			let button = alert.buttons.first
+			button?.target = self
+			button?.action = #selector(self.openThemesFolder(_:))
+			
+			alert.runModal()
+		}
+	}
+	
+	@objc func openThemesFolder(_ sender: Any) {
+		if themeImportPath == nil {
+			let url = URL(fileURLWithPath: ArticleThemesManager.shared.folderPath)
+			NSWorkspace.shared.open(url)
+		} else {
+			let url = URL(fileURLWithPath: themeImportPath!)
+			NSWorkspace.shared.open(url.deletingLastPathComponent())
 		}
 	}
 	

Shared/ArticleStyles/ArticleTheme.swift

@@ -58,7 +58,6 @@ struct ArticleTheme: Equatable {
 		let data = try Data(contentsOf: URL(fileURLWithPath: infoPath))
 		self.info = try PropertyListDecoder().decode(ArticleThemePlist.self, from: data)
 		
-		
 		let corePath = Bundle.main.path(forResource: "core", ofType: "css")!
 		let stylesheetPath = (path as NSString).appendingPathComponent("stylesheet.css")
 		if let stylesheetCSS = Self.stringAtPath(stylesheetPath) {

Shared/ArticleStyles/ArticleThemeDownloader.swift

@@ -22,7 +22,6 @@ public class ArticleThemeDownloader {
 		}
 	}
 	
-	
 	public static let shared = ArticleThemeDownloader()
 	private init() {}