Flight log grows with window and can be copied or saved

CHANGELOG.md

@@ -9,6 +9,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- **The flight log grows with the window, and its text can be copied or saved.** Drag Fido taller and
+  every spare pixel now goes to the **flight log** instead of to a gap above it — the upper section
+  keeps the room its content needs and the log takes the rest; shrink the window and the log falls back
+  to its compact box while the upper section scrolls as before. Two new buttons on the **Flight log**
+  rule lift the narration out: **copy** puts the whole log (every line, not just the visible ones) on
+  the clipboard as plain text, and **save** writes it to a text file you pick, suggesting a dated name
+  like `fido-flight-log-20260806-142317.txt`. Both are disabled until there's something to hand over,
+  and both confirm themselves in the log.
+
 - **Copy the selected working-tree path to the clipboard.** The OPEN strip now has a small **copy
   button** beside the path, and the ellipsised card and strip paths carry a **tooltip with the full
   path** — so a long worktree path (previously truncated and un-selectable) can be read in full and

Docs/Features.md

@@ -275,6 +275,21 @@ green `✓` for successes, plain `▸` for actions — and failures call it stra
 lines for a branch that isn't checked out anywhere, a tool that can't be located, or a
 delete that went wrong.
 
+The panel **grows with the window**: drag Fido's bottom edge down and every spare pixel
+goes to the log rather than to a gap above it — the upper section keeps as much room as
+its content needs, and the log takes the rest. Shrink the window again and the log falls
+back to its compact box while the upper section scrolls.
+
+Two buttons on the **Flight log** rule take the narration with you:
+
+- **Copy** puts the whole log — every line, not just the visible ones — on the clipboard
+  as plain text.
+- **Save** writes it to a text file you pick, suggesting a dated name like
+  `fido-flight-log-20260806-142317.txt`.
+
+Both are disabled until there's something to hand over, and each confirms itself in the
+log (`📋 Copied 8 flight-log line(s) to the clipboard.`, `✓ Flight log saved to …`).
+
 ### Keyboard & shortcuts
 
 - The **branch** field is focused on launch. Typing debounces into a scan; **Enter**

src/Services/AvaloniaDialogService.cs

@@ -1,4 +1,5 @@
 using Avalonia.Controls;
+using Avalonia.Platform.Storage;
 using Fido.Models;
 using Fido.Views;
 
@@ -16,4 +17,29 @@ public Task<bool> ConfirmForceDeleteWorktreeFolderAsync(WorktreeForceDelete requ
 
     public Task ShowSettingsAsync(AppConfig config, ConfigService configService)
         => new SettingsDialog(config, configService).ShowDialog(_owner);
+
+    public async Task<string?> PickFlightLogPathAsync(string suggestedFileName)
+    {
+        var storage = _owner.StorageProvider;
+        if (!storage.CanSave) return null;
+
+        var file = await storage.SaveFilePickerAsync(new FilePickerSaveOptions
+        {
+            Title = "Save flight log",
+            SuggestedFileName = suggestedFileName,
+            DefaultExtension = "txt",
+            ShowOverwritePrompt = true,
+            FileTypeChoices =
+            [
+                new FilePickerFileType("Text file")
+                {
+                    Patterns = ["*.txt"],
+                    MimeTypes = ["text/plain"],
+                },
+            ],
+        });
+
+        // A picked file is written by path — Fido isn't sandboxed, and the log is plain text.
+        return file?.TryGetLocalPath();
+    }
 }

src/Services/IDialogService.cs

@@ -19,4 +19,10 @@ public interface IDialogService
 
     /// <summary>Opens the settings dialog (modal).</summary>
     Task ShowSettingsAsync(AppConfig config, ConfigService configService);
+
+    /// <summary>
+    /// Asks where to save the flight log, offering <paramref name="suggestedFileName"/>. Returns the
+    /// chosen path, or null when the user cancelled (or the platform has no save picker).
+    /// </summary>
+    Task<string?> PickFlightLogPathAsync(string suggestedFileName);
 }

src/Theme/FidoStyles.axaml

@@ -566,32 +566,39 @@
         <Setter Property="Foreground" Value="{DynamicResource FidoAccentStrong}" />
     </Style>
 
-    <!-- Copy-to-clipboard icon button (next to the selected path in the OPEN strip) -->
-    <Style Selector="Button.copypath">
+    <!-- Small ghost icon button: copy-to-clipboard beside the selected path, copy/save on the flight log -->
+    <Style Selector="Button.iconaction">
         <Setter Property="Background" Value="Transparent" />
         <Setter Property="BorderThickness" Value="0" />
         <Setter Property="Padding" Value="5" />
         <Setter Property="CornerRadius" Value="6" />
         <Setter Property="VerticalAlignment" Value="Center" />
         <Setter Property="Opacity" Value="0.6" />
     </Style>
-    <Style Selector="Button.copypath Path">
+    <Style Selector="Button.iconaction Path">
         <Setter Property="Stroke" Value="{DynamicResource FidoTextMuted}" />
         <Setter Property="StrokeThickness" Value="1.8" />
         <Setter Property="StrokeLineCap" Value="Round" />
         <Setter Property="StrokeJoin" Value="Round" />
     </Style>
-    <Style Selector="Button.copypath /template/ ContentPresenter#PART_ContentPresenter">
+    <Style Selector="Button.iconaction /template/ ContentPresenter#PART_ContentPresenter">
         <Setter Property="Background" Value="Transparent" />
     </Style>
-    <Style Selector="Button.copypath:pointerover">
+    <Style Selector="Button.iconaction:pointerover">
         <Setter Property="Opacity" Value="1" />
     </Style>
-    <Style Selector="Button.copypath:pointerover /template/ ContentPresenter#PART_ContentPresenter">
+    <Style Selector="Button.iconaction:pointerover /template/ ContentPresenter#PART_ContentPresenter">
         <Setter Property="Background" Value="{DynamicResource FidoGearHoverBg}" />
     </Style>
-    <Style Selector="Button.copypath:pointerover Path">
+    <Style Selector="Button.iconaction:pointerover Path">
         <Setter Property="Stroke" Value="{DynamicResource FidoAccentText}" />
     </Style>
+    <!-- Nothing to act on yet (an empty flight log): dimmed, and no hover lift -->
+    <Style Selector="Button.iconaction:disabled">
+        <Setter Property="Opacity" Value="0.25" />
+    </Style>
+    <Style Selector="Button.iconaction:disabled /template/ ContentPresenter#PART_ContentPresenter">
+        <Setter Property="Background" Value="Transparent" />
+    </Style>
 
 </Styles>

src/ViewModels/MainWindowViewModel.cs

@@ -16,6 +16,10 @@ namespace Fido.ViewModels;
 /// </summary>
 public sealed class MainWindowViewModel : ObservableObject
 {
+    public MainWindowViewModel() =>
+        // The log's copy/save actions are gated on there being something to hand over.
+        Log.CollectionChanged += (_, _) => OnPropertyChanged(nameof(HasLog));
+
     // --- Inputs -----------------------------------------------------------------------
 
     private string _branchName = "";
@@ -531,6 +535,15 @@ static void Replace(ObservableCollection<string> target, IEnumerable<string> sou
     /// <summary>Color-coded flight-log lines.</summary>
     public ObservableCollection<LogLine> Log { get; } = new();
 
+    /// <summary>True once the log has a line in it — enables the copy/save actions above the panel.</summary>
+    public bool HasLog => Log.Count > 0;
+
+    /// <summary>
+    /// The whole flight log as plain text, one line per entry — what the copy-to-clipboard and
+    /// save-to-file actions hand over. Colour levels are presentation only and don't survive the trip.
+    /// </summary>
+    public string LogText => string.Join(Environment.NewLine, Log.Select(line => line.Text));
+
     public void AppendLog(string message)
     {
         if (Dispatcher.UIThread.CheckAccess())

src/Views/MainWindow.axaml

@@ -14,12 +14,14 @@
         Background="{DynamicResource FidoWindowBg}">
 
     <!-- One window, one screen: header → inputs → discovery → open actions → delete → flight log.
-         The upper stack scrolls if the discovery list outgrows the window; the flight log keeps its
-         own min/max height near the bottom; the auto-close countdown pins beneath it. -->
-    <Grid Margin="30,26,30,24" RowDefinitions="*,Auto,Auto">
+         The upper stack scrolls if the discovery list outgrows the window; the flight log sits near the
+         bottom and takes whatever vertical slack the window has beyond the upper stack (see
+         MainWindow.UpdateFlightLogHeight); the auto-close countdown pins beneath it. -->
+    <Grid x:Name="RootGrid" Margin="30,26,30,24" RowDefinitions="*,Auto,Auto">
 
-        <ScrollViewer Grid.Row="0" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled">
-            <StackPanel Spacing="22">
+        <ScrollViewer x:Name="MainScroller" Grid.Row="0"
+                      VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled">
+            <StackPanel x:Name="UpperStack" Spacing="22">
 
                 <!-- ============================= 1. Header ============================= -->
                 <Grid ColumnDefinitions="Auto,*,Auto">
@@ -292,7 +294,7 @@
                                     <StackPanel Grid.Column="2" Orientation="Horizontal" Spacing="10"
                                                 VerticalAlignment="Center">
                                         <!-- Copy the selected working-tree path to the clipboard -->
-                                        <Button x:Name="CopyPathButton" Classes="copypath" Click="OnCopyPathClick"
+                                        <Button x:Name="CopyPathButton" Classes="iconaction" Click="OnCopyPathClick"
                                                 IsTabStop="False" ToolTip.Tip="Copy path to clipboard">
                                             <Path Width="14" Height="14" Stretch="Uniform"
                                                   Data="M11,9 L20,9 A2,2 0 0 1 22,11 L22,20 A2,2 0 0 1 20,22 L11,22 A2,2 0 0 1 9,20 L9,11 A2,2 0 0 1 11,9 Z M5,15 L4,15 A2,2 0 0 1 2,13 L2,4 A2,2 0 0 1 4,2 L13,2 A2,2 0 0 1 15,4 L15,5" />
@@ -439,13 +441,31 @@
         </ScrollViewer>
 
         <!-- ============================= 6. Flight log ============================= -->
-        <Grid Grid.Row="1" RowDefinitions="Auto,Auto" Margin="0,20,0,0">
-            <Grid Grid.Row="0" ColumnDefinitions="Auto,*" Margin="0,0,0,9">
+        <Grid x:Name="LogRegion" Grid.Row="1" RowDefinitions="Auto,Auto" Margin="0,20,0,0">
+            <Grid Grid.Row="0" ColumnDefinitions="Auto,*,Auto" Margin="0,0,0,9">
                 <TextBlock Grid.Column="0" Classes="label" Text="Flight log" VerticalAlignment="Center" />
                 <Border Grid.Column="1" Height="1" Background="{DynamicResource FidoLogRule}"
-                        VerticalAlignment="Center" Margin="10,0,0,0" />
+                        VerticalAlignment="Center" Margin="10,0" />
+                <!-- Take the narration with you: the whole log to the clipboard, or out to a text file -->
+                <StackPanel Grid.Column="2" Orientation="Horizontal" Spacing="4" VerticalAlignment="Center">
+                    <Button x:Name="CopyLogButton" Classes="iconaction" Click="OnCopyLogClick"
+                            IsTabStop="False" IsEnabled="{Binding HasLog}"
+                            ToolTip.Tip="Copy the flight log to the clipboard">
+                        <Path Width="14" Height="14" Stretch="Uniform"
+                              Data="M11,9 L20,9 A2,2 0 0 1 22,11 L22,20 A2,2 0 0 1 20,22 L11,22 A2,2 0 0 1 9,20 L9,11 A2,2 0 0 1 11,9 Z M5,15 L4,15 A2,2 0 0 1 2,13 L2,4 A2,2 0 0 1 4,2 L13,2 A2,2 0 0 1 15,4 L15,5" />
+                    </Button>
+                    <Button x:Name="SaveLogButton" Classes="iconaction" Click="OnSaveLogClick"
+                            IsTabStop="False" IsEnabled="{Binding HasLog}"
+                            ToolTip.Tip="Save the flight log to a file">
+                        <Path Width="14" Height="14" Stretch="Uniform"
+                              Data="M12,3 V15 M8,11 L12,15 L16,11 M4,17 V20 A1,1 0 0 0 5,21 H19 A1,1 0 0 0 20,20 V17" />
+                    </Button>
+                </StackPanel>
             </Grid>
-            <Border Grid.Row="1" Background="{DynamicResource FidoLogBg}" BorderBrush="{DynamicResource FidoLogBorder}"
+            <!-- MinHeight/MaxHeight are the design's content-sized panel (104 → 150 as lines land); an
+                 explicit Height set from code-behind takes over once the window has slack to give. -->
+            <Border x:Name="LogPanel" Grid.Row="1"
+                    Background="{DynamicResource FidoLogBg}" BorderBrush="{DynamicResource FidoLogBorder}"
                     BorderThickness="1" CornerRadius="10" Padding="15,12" MinHeight="104" MaxHeight="150">
                 <ScrollViewer x:Name="LogScroller" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto">
                     <ItemsControl ItemsSource="{Binding Log}">
@@ -464,7 +484,7 @@
         </Grid>
 
         <!-- Close countdown + "keep open" escape hatch; only while an auto-close is pending -->
-        <Border Grid.Row="2" IsVisible="{Binding IsClosingCountdown}" Margin="0,16,0,0"
+        <Border x:Name="CountdownBar" Grid.Row="2" IsVisible="{Binding IsClosingCountdown}" Margin="0,16,0,0"
                 Background="{DynamicResource FidoGoBg}" BorderBrush="{DynamicResource FidoGo}"
                 BorderThickness="2,0,0,0" CornerRadius="0,5,5,0" Padding="14,10">
             <Grid ColumnDefinitions="Auto,*,Auto">