fix: preserve uncommitted translation input

Sources/Conjure/LauncherWindowController.swift

@@ -37,6 +37,7 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
     private var launcherViews: [NSView] = []
     private var launcherFrameBeforeReview: NSRect?
     private var translation: TranslationController?
+    private var translationDraft: TranslationController.Draft?
     private var emojiPicker: EmojiPickerController?
     private var notes: NotesController?
     private let notesDirectory: URL?
@@ -886,7 +887,7 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
         let accessibilityLabel: String
         switch command {
         case .translate:
-            let tool = TranslationController(defaults: defaults, pasteboard: pasteboard)
+            let tool = TranslationController(defaults: defaults, pasteboard: pasteboard, draft: translationDraft)
             tool.dismiss = { [weak self] in self?.dismiss() }
             translation = tool
             tool.input = { [weak self] in self?.searchField.stringValue ?? "" }
@@ -931,6 +932,7 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
             guard let self, let controller else { return }
             controller.view.removeFromSuperview()
             self.translation?.providerControl.removeFromSuperview()
+            if let translation = self.translation { self.translationDraft = translation.draft }
             self.translationHeader.isHidden = true
             self.translation = nil
             self.emojiPicker = nil
@@ -976,7 +978,7 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
         commandBack.target = self
         commandBack.action = #selector(goBackCommand)
         commandBack.isHidden = false
-        searchField.stringValue = ""
+        searchField.stringValue = command == .translate ? translationDraft?.input ?? "" : ""
         searchField.placeholderAttributedString = NSAttributedString(
             string: placeholder,
             attributes: previousPlaceholder?.attributes(at: 0, effectiveRange: nil) ?? [:]
@@ -1011,6 +1013,8 @@ final class LauncherWindowController: NSWindowController, NSWindowDelegate, NSSe
         content.addSubview(controller.view)
         if let translation {
             translationHeader.addArrangedSubview(translation.providerControl)
+            commandBack.setAccessibilityLabel(translation.backAccessibilityLabel)
+            commandBack.toolTip = translation.backAccessibilityLabel
             translationHeader.isHidden = false
         }
         NSLayoutConstraint.activate([

Sources/Conjure/TranslationController.swift

@@ -32,6 +32,14 @@ final class TranslationController: NSViewController {
     private func languageName(_ code: String) -> String { Self.languageName(code) }
     private var usesMyMemory: Bool
     private var textToTranslate: String?
+    struct Draft {
+        let input: String
+        let textToTranslate: String?
+    }
+    private var committed = false
+    var draft: Draft? {
+        committed ? nil : Draft(input: input?() ?? "", textToTranslate: textToTranslate)
+    }
     private let sourcePreview = NSTextField(wrappingLabelWithString: "")
     private let output = NSTextView()
     private let settingsButton = NSButton(title: "Open Translate Settings", target: nil, action: nil)
@@ -60,13 +68,15 @@ final class TranslationController: NSViewController {
         openAI: @escaping @MainActor (String, String, String, String, String) async throws -> String = {
             try await TranslationAPI.translate($0, apiKey: $3, sourceLanguage: $1, targetLanguage: $2, context: $4)
         },
-        pasteboard: NSPasteboard = .general
+        pasteboard: NSPasteboard = .general,
+        draft: Draft? = nil
     ) {
         self.defaults = defaults
         self.credentialsStore = credentials
         self.myMemory = myMemory
         self.openAI = openAI
         self.pasteboard = pasteboard
+        textToTranslate = draft?.textToTranslate
         usesMyMemory = defaults.string(forKey: "translationProvider") != "openai"
         sourceLanguage = defaults.string(forKey: "translationSourceLanguage")
             .flatMap { Self.languages.contains($0) ? $0 : nil } ?? "en"
@@ -285,6 +295,7 @@ final class TranslationController: NSViewController {
     }
 
     func inputChanged() {
+        committed = false
         cancelRequest()
         output.string = ""
         outputSecondaryRange = nil
@@ -354,6 +365,7 @@ final class TranslationController: NSViewController {
         }
         pasteboard.clearContents()
         if pasteboard.setString(output.string, forType: .string) {
+            committed = true
             dismiss?()
         } else {
             setStatus("Could not copy the translation. Try again.", isError: true)