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Merge branch 'claude/m2-file-transfer-1b9951'
ci / build and test (push) Failing after 3s
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jaap-jan
2026-07-31 11:08:05 +02:00
parent f7c5096bc6 04faef6597
commit d1700f5a34
32 changed files with 4933 additions and 53 deletions
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src/DodoSSH.Client.App/Views/MainWindow.axaml
+9 -14
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@@ -184,20 +184,15 @@
</Grid>
<!-- ============ FILES ============ -->
<views:NotBuiltScreen IsVisible="{Binding IsTransfersScreen}"
Title="FILE TRANSFER"
Milestone="MILESTONE M2"
Summary="The design shows a two-pane file browser over SFTP with a transfer queue. None of it is here: an SSH connection in this build opens exactly one interactive shell channel and nothing else, so there is no file transfer to show the state of."
Instead="Until this lands, move files the way you would from any terminal — scp or rsync from a shell on this machine, or a shell open on the host itself.">
<views:NotBuiltScreen.Missing>
<sys:List x:TypeArguments="x:String">
<x:String>An SFTP subsystem channel on ISshConnection, which today offers OpenShellAsync and nothing more (DodoSSH.Client.Ssh).</x:String>
<x:String>Remote directory listing — names, sizes, modification times and permission bits (DodoSSH.Client.Ssh).</x:String>
<x:String>A transfer queue with progress, throughput and resume, and somewhere for it to live across a lock (DodoSSH.Client.Ssh, DodoSSH.Client.Session).</x:String>
<x:String>Routing a transfer through a bastion, which needs jump-host support the connection layer does not have — the host model already records the chain.</x:String>
</sys:List>
</views:NotBuiltScreen.Missing>
</views:NotBuiltScreen>
<!--
Wrapped rather than bound directly, for the same reason the vault screen is: this element's
visibility is the shell's business and its data context is the transfers view model, and putting
both on one element resolves IsVisible against that view model, where IsTransfersScreen does not
exist.
-->
<Panel IsVisible="{Binding IsTransfersScreen}">
<views:TransfersScreen DataContext="{Binding Transfers}" />
</Panel>
<!-- ============ VAULT ============ -->
<!--
src/DodoSSH.Client.App/Views/NavRail.axaml
+6 -6
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@@ -7,11 +7,11 @@
<!--
Five destinations down the left edge.
Two of them — TRANSFERS and TEAM — reach screens that say they are not built. They are in the rail
anyway rather than dropped, and the reasoning is in ShellScreen: the milestones are public, the screens
behind these two say plainly what is missing, and a rail that quietly had three entries would make file
transfer and sharing look like a change of product rather than the next two milestones. Both are
recorded in docs/design-import-gaps.md.
One of them — TEAM — reaches a screen that says it is not built. It is in the rail anyway rather than
dropped, and the reasoning is in ShellScreen: the milestones are public, the screen behind it says
plainly what is missing, and a rail that quietly had four entries would make sharing look like a change
of product rather than the next milestone. It is recorded in docs/design-import-gaps.md. FILES was the
other one until M2 built it.
Buttons rather than a TabStrip or a ListBox, for the same reason the vault's category rail is: all three
of those hold the selection themselves, so a click moves the highlight before the shell can decide
@@ -30,7 +30,7 @@
<Button Classes="flat nav" Content="FILES" Classes.active="{Binding IsTransfersScreen}"
Command="{Binding ShowScreenCommand}"
CommandParameter="{x:Static vm:ShellScreen.Transfers}"
ToolTip.Tip="File transfer over SSH. Not built yet — see the screen for what is missing." />
ToolTip.Tip="Move files to and from a host over SFTP" />
<Button Classes="flat nav" Content="VAULT" Classes.active="{Binding IsVaultScreen}"
Command="{Binding ShowScreenCommand}"
CommandParameter="{x:Static vm:ShellScreen.Vault}"
src/DodoSSH.Client.App/Views/TransfersScreen.axaml
+404
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@@ -0,0 +1,404 @@
<UserControl xmlns="https://github.com/avaloniaui"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:vm="using:DodoSSH.Client.App.ViewModels"
x:Class="DodoSSH.Client.App.Views.TransfersScreen"
x:DataType="vm:TransfersViewModel">
<!--
File transfer: this machine on the left, the host on the right, and the queue underneath.
Two things about this screen are worth knowing before reading the markup. It has its own CONNECT
button, because SSH.NET cannot open an SFTP subsystem on a transport that is already carrying a shell —
so browsing a host's files is a second authenticated connection rather than a second channel, and
pretending otherwise would hide a second login from the person whose audit log it appears in. And the
panes are symmetrical apart from one column: PERMS is remote-only, because a POSIX mode is not a fact
about a file on the machine this client is developed on.
What the design has and this does not: `sftp over bastion-eu`, which needs jump hosts the connection
layer has not got. See docs/design-import-gaps.md.
-->
<UserControl.Styles>
<!--
A directory is marked by colour rather than by an icon: this application ships no icon set, and the
palette already reserves blue for "a directory, a distinct scope" — see App.axaml, where it is
described as deliberately rare. This is the one place it is spent.
-->
<Style Selector="TextBlock.entry">
<Setter Property="Foreground" Value="{StaticResource Text}" />
</Style>
<Style Selector="TextBlock.entry.dir">
<Setter Property="Foreground" Value="{StaticResource Info}" />
</Style>
</UserControl.Styles>
<Grid RowDefinitions="44,*,Auto">
<!-- ============ The host, and the connection ============ -->
<Border Grid.Row="0" Padding="14,0" BorderBrush="{StaticResource Border}" BorderThickness="0,0,0,1">
<Grid ColumnDefinitions="Auto,180,Auto,Auto,Auto,*" VerticalAlignment="Center">
<TextBlock Grid.Column="0" Classes="mono" Text="FILES" FontSize="11" FontWeight="SemiBold"
LetterSpacing="1" Foreground="{StaticResource Text}" VerticalAlignment="Center"
Margin="0,0,12,0" />
<ComboBox Grid.Column="1" ItemsSource="{Binding Hosts}"
SelectedItem="{Binding SelectedHost}"
IsEnabled="{Binding !IsConnected}"
PlaceholderText="choose a host">
<ComboBox.ItemTemplate>
<DataTemplate x:DataType="vm:HostRowViewModel">
<StackPanel>
<TextBlock Classes="mono" Text="{Binding Label}" FontSize="11"
Foreground="{StaticResource Text}" />
<TextBlock Classes="mono" Text="{Binding Address}" FontSize="9"
Foreground="{StaticResource TextFaint}" />
</StackPanel>
</DataTemplate>
</ComboBox.ItemTemplate>
</ComboBox>
<!--
Only for a host bound to nothing, exactly as the hosts screen's box is — and it is a different box
holding a different value. This connection authenticates separately, so a password typed to open a
terminal was never offered here.
-->
<TextBox Grid.Column="2" Width="150" Margin="6,0,0,0" PasswordChar="•"
Text="{Binding TypedPassword}" PlaceholderText="password"
IsVisible="{Binding SelectedHostAsksForAPassword}"
IsEnabled="{Binding !IsConnected}" />
<Button Grid.Column="3" Classes="accent" Content="CONNECT" Margin="6,0,0,0"
Command="{Binding ConnectCommand}"
IsVisible="{Binding !IsConnected}"
IsEnabled="{Binding !IsBusy}" />
<Button Grid.Column="3" Classes="ghost" Content="DISCONNECT" Margin="6,0,0,0"
Command="{Binding DisconnectCommand}"
IsVisible="{Binding IsConnected}" />
<Border Grid.Column="4" Classes="chip accent" Margin="8,0,0,0"
IsVisible="{Binding IsConnected}">
<TextBlock Text="{Binding ConnectedTo}" />
</Border>
<TextBlock Grid.Column="5" Classes="hint" Text="{Binding Status}" FontSize="10.5"
Margin="12,0,0,0" VerticalAlignment="Center" TextTrimming="CharacterEllipsis"
TextWrapping="NoWrap" />
</Grid>
</Border>
<!-- ============ The two panes ============ -->
<Grid Grid.Row="1" ColumnDefinitions="*,64,*">
<!-- ==== This machine ==== -->
<Grid Grid.Column="0" RowDefinitions="Auto,Auto,Auto,*">
<Border Grid.Row="0" Padding="12,7" BorderBrush="{StaticResource BorderSubtle}"
BorderThickness="0,0,0,1">
<Grid ColumnDefinitions="Auto,*,Auto">
<TextBlock Grid.Column="0" Classes="label" Text="THIS MACHINE" VerticalAlignment="Center" />
<StackPanel Grid.Column="2" Orientation="Horizontal" Spacing="6">
<!--
The drives, because the breadcrumb cannot reach them: above C:\ is a list rather than a
directory. Without this the pane is stuck on whichever drive the user profile is on.
-->
<ItemsControl ItemsSource="{Binding LocalRoots}" VerticalAlignment="Center">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal" Spacing="4" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate x:DataType="vm:CrumbViewModel">
<Button Classes="ghost" Content="{Binding Name}"
Command="{Binding $parent[ItemsControl].((vm:TransfersViewModel)DataContext).GoLocalCommand}"
CommandParameter="{Binding Path}" />
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
<Button Classes="ghost" Content="UP" Command="{Binding LocalUpCommand}" />
<Button Classes="ghost" Content="REFRESH" Command="{Binding RefreshLocalCommand}" />
</StackPanel>
</Grid>
</Border>
<ItemsControl Grid.Row="1" ItemsSource="{Binding LocalTrail}" Margin="12,6,12,4">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel Orientation="Horizontal" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate x:DataType="vm:CrumbViewModel">
<StackPanel Orientation="Horizontal">
<Button Classes="flat" Padding="3,1"
Command="{Binding $parent[ItemsControl].((vm:TransfersViewModel)DataContext).GoLocalCommand}"
CommandParameter="{Binding Path}">
<TextBlock Classes="mono" Text="{Binding Name}" FontSize="10"
Foreground="{StaticResource TextDim}" />
</Button>
<TextBlock Classes="mono" Text="›" FontSize="10"
Foreground="{StaticResource TextFaint}" VerticalAlignment="Center" />
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
<Grid Grid.Row="2" ColumnDefinitions="2,*,84,110" Margin="0,2,12,4">
<TextBlock Grid.Column="1" Classes="label" Text="NAME" FontSize="8.5" Margin="12,0,8,0" />
<TextBlock Grid.Column="2" Classes="label" Text="SIZE" FontSize="8.5" />
<TextBlock Grid.Column="3" Classes="label" Text="MODIFIED" FontSize="8.5" />
</Grid>
<ListBox Grid.Row="3" x:Name="LocalList" ItemsSource="{Binding LocalEntries}"
SelectedItem="{Binding SelectedLocalEntry}">
<ListBox.ItemTemplate>
<DataTemplate x:DataType="vm:LocalEntryRowViewModel">
<Grid ColumnDefinitions="2,*,84,110" Margin="0,5,12,5">
<Border Grid.Column="0" Classes="rowmark" />
<TextBlock Grid.Column="1" Classes="mono entry" Classes.dir="{Binding IsNavigable}"
Text="{Binding Name}" FontSize="11"
Margin="12,0,8,0" TextTrimming="CharacterEllipsis" />
<TextBlock Grid.Column="2" Classes="mono" Text="{Binding Size}" FontSize="9.5"
Foreground="{StaticResource TextDim}" VerticalAlignment="Center" />
<TextBlock Grid.Column="3" Classes="mono" Text="{Binding Modified}" FontSize="9.5"
Foreground="{StaticResource TextFaint}" VerticalAlignment="Center" />
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<TextBlock Grid.Row="3" Classes="hint" FontSize="11" Margin="24" MaxWidth="260"
HorizontalAlignment="Center" VerticalAlignment="Center" TextAlignment="Center"
Text="Nothing in this folder. Use the trail above to go somewhere else."
IsVisible="{Binding !HasLocalEntries}" />
</Grid>
<!-- ==== The two directions ==== -->
<Border Grid.Column="1" Background="{StaticResource Sidebar}"
BorderBrush="{StaticResource Border}" BorderThickness="1,0">
<StackPanel VerticalAlignment="Center" Spacing="10" Margin="6">
<!--
Pointing at the pane the file is going to, which is the only reading that survives the panes
being side by side: the left-hand pane is this machine, so an upload points right.
-->
<Button Classes="ghost" Content="→" HorizontalAlignment="Stretch"
HorizontalContentAlignment="Center"
Command="{Binding UploadCommand}" IsEnabled="{Binding CanUpload}"
ToolTip.Tip="Upload the selected file to the directory showing on the host" />
<Button Classes="ghost" Content="←" HorizontalAlignment="Stretch"
HorizontalContentAlignment="Center"
Command="{Binding DownloadCommand}" IsEnabled="{Binding CanDownload}"
ToolTip.Tip="Download the selected file into the folder showing on this machine" />
</StackPanel>
</Border>
<!-- ==== The host ==== -->
<Grid Grid.Column="2" RowDefinitions="Auto,Auto,Auto,*">
<Border Grid.Row="0" Padding="12,7" BorderBrush="{StaticResource BorderSubtle}"
BorderThickness="0,0,0,1">
<Grid ColumnDefinitions="Auto,*,Auto">
<TextBlock Grid.Column="0" Classes="label" Text="HOST" VerticalAlignment="Center" />
<StackPanel Grid.Column="2" Orientation="Horizontal" Spacing="6">
<Button Classes="ghost" Content="UP" Command="{Binding RemoteUpCommand}"
IsEnabled="{Binding IsConnected}" />
<Button Classes="ghost" Content="REFRESH" Command="{Binding RefreshRemoteCommand}"
IsEnabled="{Binding IsConnected}" />
<Button Classes="danger" Content="DELETE" Command="{Binding DeleteRemoteCommand}"
IsEnabled="{Binding IsConnected}" />
</StackPanel>
</Grid>
</Border>
<Grid Grid.Row="1" ColumnDefinitions="*,Auto" Margin="12,6,12,4">
<ItemsControl Grid.Column="0" ItemsSource="{Binding RemoteTrail}" VerticalAlignment="Center">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel Orientation="Horizontal" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate x:DataType="vm:CrumbViewModel">
<StackPanel Orientation="Horizontal">
<TextBlock Classes="mono" Text="/" FontSize="10"
Foreground="{StaticResource TextFaint}" VerticalAlignment="Center" />
<Button Classes="flat" Padding="3,1"
Command="{Binding $parent[ItemsControl].((vm:TransfersViewModel)DataContext).GoRemoteCommand}"
CommandParameter="{Binding Path}">
<TextBlock Classes="mono" Text="{Binding Name}" FontSize="10"
Foreground="{StaticResource TextDim}" />
</Button>
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
<!--
Making a directory sits here, beside the path it would be made in, rather than with the queue's
controls. It exists because the queue refuses to overwrite: without somewhere else to put a file,
"that name is already taken" is a dead end.
-->
<StackPanel Grid.Column="1" Orientation="Horizontal" Spacing="6"
IsVisible="{Binding IsConnected}">
<TextBox Width="140" Text="{Binding NewRemoteFolder}" PlaceholderText="new directory" />
<Button Classes="ghost" Content="MKDIR" Command="{Binding CreateRemoteFolderCommand}" />
</StackPanel>
</Grid>
<Grid Grid.Row="2" ColumnDefinitions="2,*,84,110,92" Margin="0,2,12,4">
<TextBlock Grid.Column="1" Classes="label" Text="NAME" FontSize="8.5" Margin="12,0,8,0" />
<TextBlock Grid.Column="2" Classes="label" Text="SIZE" FontSize="8.5" />
<TextBlock Grid.Column="3" Classes="label" Text="MODIFIED" FontSize="8.5" />
<TextBlock Grid.Column="4" Classes="label" Text="PERMS" FontSize="8.5" />
</Grid>
<ListBox Grid.Row="3" x:Name="RemoteList" ItemsSource="{Binding RemoteEntries}"
SelectedItem="{Binding SelectedRemoteEntry}">
<ListBox.ItemTemplate>
<DataTemplate x:DataType="vm:RemoteEntryRowViewModel">
<Grid ColumnDefinitions="2,*,84,110,92" Margin="0,5,12,5">
<Border Grid.Column="0" Classes="rowmark" />
<TextBlock Grid.Column="1" Classes="mono entry" Classes.dir="{Binding IsNavigable}"
Text="{Binding Name}" FontSize="11"
Margin="12,0,8,0" TextTrimming="CharacterEllipsis" />
<TextBlock Grid.Column="2" Classes="mono" Text="{Binding Size}" FontSize="9.5"
Foreground="{StaticResource TextDim}" VerticalAlignment="Center" />
<TextBlock Grid.Column="3" Classes="mono" Text="{Binding Modified}" FontSize="9.5"
Foreground="{StaticResource TextFaint}" VerticalAlignment="Center" />
<TextBlock Grid.Column="4" Classes="mono" Text="{Binding Permissions}" FontSize="9.5"
Foreground="{StaticResource TextFaint}" VerticalAlignment="Center" />
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<StackPanel Grid.Row="3" Spacing="10" Margin="24" MaxWidth="300"
HorizontalAlignment="Center" VerticalAlignment="Center"
IsVisible="{Binding !HasRemoteEntries}">
<TextBlock Classes="hint" FontSize="11" TextAlignment="Center"
Text="Connect to a host to browse its files. This opens its own SFTP connection, so the host records a second login — it is not the same channel as a terminal."
IsVisible="{Binding !IsConnected}" />
<TextBlock Classes="hint" FontSize="11" TextAlignment="Center"
Text="Nothing in this directory."
IsVisible="{Binding IsConnected}" />
</StackPanel>
</Grid>
</Grid>
<!-- ============ The queue ============ -->
<Border Grid.Row="2" Background="{StaticResource Sidebar}" BorderBrush="{StaticResource Border}"
BorderThickness="0,1,0,0" MaxHeight="196">
<Grid RowDefinitions="Auto,*">
<Border Grid.Row="0" Padding="12,7">
<Grid ColumnDefinitions="Auto,Auto,*,Auto,Auto">
<TextBlock Grid.Column="0" Classes="label" Text="TRANSFERS" VerticalAlignment="Center" />
<TextBlock Grid.Column="1" Classes="mono" FontSize="9.5" Margin="10,0,0,0"
Foreground="{StaticResource TextFaint}" VerticalAlignment="Center"
Text="one at a time · nothing lands at its final name until it is complete" />
</Grid>
</Border>
<ScrollViewer Grid.Row="1">
<StackPanel>
<TextBlock Classes="hint" FontSize="10.5" Margin="12,4,12,14"
IsVisible="{Binding !HasTransfers}"
Text="Nothing queued. Choose a file in either pane and press the arrow pointing the way you want it to go." />
<ItemsControl ItemsSource="{Binding Transfers}">
<ItemsControl.ItemTemplate>
<DataTemplate x:DataType="vm:TransferRowViewModel">
<Grid ColumnDefinitions="16,150,*,190,Auto" Margin="12,4">
<TextBlock Grid.Column="0" Classes="mono" Text="{Binding Arrow}" FontSize="11"
Foreground="{StaticResource Accent}" VerticalAlignment="Center" />
<StackPanel Grid.Column="1" Margin="0,0,8,0">
<TextBlock Classes="mono" Text="{Binding Name}" FontSize="10.5"
Foreground="{StaticResource Text}" TextTrimming="CharacterEllipsis" />
<TextBlock Classes="mono" Text="{Binding Path}" FontSize="9"
Foreground="{StaticResource TextFaint}"
TextTrimming="CharacterEllipsis" />
</StackPanel>
<ProgressBar Grid.Column="2" Height="4" Minimum="0" Maximum="100"
Value="{Binding Percent}" VerticalAlignment="Center"
Foreground="{StaticResource Accent}"
Background="{StaticResource Raised}" />
<TextBlock Grid.Column="3" Classes="mono" Text="{Binding Progress}" FontSize="9.5"
Margin="10,0" VerticalAlignment="Center"
TextTrimming="CharacterEllipsis"
Foreground="{StaticResource TextDim}" />
<StackPanel Grid.Column="4" Orientation="Horizontal" Spacing="6">
<Border Classes="chip">
<TextBlock Text="{Binding StateLabel}" />
</Border>
<Button Classes="ghost" Content="STOP" IsVisible="{Binding IsRunning}"
Command="{Binding $parent[ItemsControl].((vm:TransfersViewModel)DataContext).CancelTransferCommand}"
CommandParameter="{Binding}" />
<Button Classes="ghost" Content="{Binding RetryLabel}" IsVisible="{Binding CanRetry}"
Command="{Binding $parent[ItemsControl].((vm:TransfersViewModel)DataContext).RetryTransferCommand}"
CommandParameter="{Binding}" />
<Button Classes="danger" Content="DISCARD" IsVisible="{Binding IsFinished}"
Command="{Binding $parent[ItemsControl].((vm:TransfersViewModel)DataContext).DiscardTransferCommand}"
CommandParameter="{Binding}" />
</StackPanel>
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
<Button Classes="ghost" Content="CLEAR FINISHED" Margin="12,6,12,12"
HorizontalAlignment="Left" Command="{Binding ClearCompletedCommand}"
IsVisible="{Binding HasTransfers}" />
</StackPanel>
</ScrollViewer>
</Grid>
</Border>
<!--
First contact and a changed key, over the whole screen. The same two refusals a terminal makes, and
they arrive here on their own because this is a separate connection — a host trusted for a shell is
trusted for this too, but a host nobody has connected to at all is met here first.
-->
<Border Grid.Row="0" Grid.RowSpan="3" Background="{StaticResource Canvas}"
IsVisible="{Binding HasPendingHostKey}">
<Border Classes="card">
<StackPanel Spacing="12">
<TextBlock Classes="heading" Text="Check this host's fingerprint" />
<TextBlock Classes="hint"
Text="This host has not been seen before. Compare the fingerprint with what the operator published. Trusting it here also trusts it for terminals, and on your other machines." />
<SelectableTextBlock Classes="mono" FontSize="11" Foreground="{StaticResource Text}"
TextWrapping="Wrap" Text="{Binding PendingHostKey.Fingerprint}" />
<StackPanel Orientation="Horizontal" Spacing="8">
<Button Classes="accent" Content="TRUST AND CONNECT" Command="{Binding TrustHostKeyCommand}" />
<Button Classes="ghost" Content="CANCEL" Command="{Binding RejectHostKeyCommand}" />
</StackPanel>
</StackPanel>
</Border>
</Border>
<Border Grid.Row="0" Grid.RowSpan="3" Background="{StaticResource Canvas}"
IsVisible="{Binding HasHostKeyMismatch}">
<Border Classes="card" BorderBrush="{StaticResource DangerSoft}">
<StackPanel Spacing="12">
<TextBlock Classes="heading" Text="The host key has changed" Foreground="{StaticResource Danger}" />
<TextBlock Classes="hint" Text="{Binding HostKeyMismatch}" />
<TextBlock Classes="hint"
Text="Nothing was connected, and there is no way to continue from here. If the server was legitimately rebuilt, edit the host on the Hosts screen and choose Forget host key." />
<Button Classes="ghost" Content="CLOSE" Command="{Binding RejectHostKeyCommand}"
HorizontalAlignment="Left" />
</StackPanel>
</Border>
</Border>
</Grid>
</UserControl>
src/DodoSSH.Client.App/Views/TransfersScreen.axaml.cs
+48
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@@ -0,0 +1,48 @@
using Avalonia.Controls;
using Avalonia.Input;
using DodoSSH.Client.App.ViewModels;
namespace DodoSSH.Client.App.Views;
/// <summary>
/// The two-pane file browser and the transfer queue.
/// </summary>
/// <remarks>
/// Its data context is the <c>TransfersViewModel</c>, which the shell owns for the life of the process — a
/// transfer in flight has to survive a lock, the same policy that keeps shells running. See
/// <c>MainWindowViewModel.LockAsync</c>.
/// </remarks>
internal sealed partial class TransfersScreen : UserControl
{
public TransfersScreen()
{
InitializeComponent();
// Wired here rather than in the markup because it is a gesture rather than a binding, and because
// opening a directory has to be reachable without the mouse as well: both lists are ListBoxes, so
// Enter on a keyboard-navigated row goes through the same commands from the buttons above them.
LocalList.DoubleTapped += OnLocalActivated;
RemoteList.DoubleTapped += OnRemoteActivated;
}
private void OnLocalActivated(object? sender, TappedEventArgs e)
{
if (DataContext is TransfersViewModel transfers)
{
transfers.OpenLocalCommand.Execute(null);
}
}
/// <remarks>
/// Fire-and-forget, which is what a double-click on a directory can be: the command reports its own
/// failures onto the screen's status line, and awaiting it here would mean an event handler that returns
/// a task nothing observes — the same thing with a warning suppressed.
/// </remarks>
private void OnRemoteActivated(object? sender, TappedEventArgs e)
{
if (DataContext is TransfersViewModel transfers)
{
_ = transfers.OpenRemoteCommand.ExecuteAsync(null);
}
}
}