SommerEngineering · Oct 25, 2026 · Oct 25, 2026 · Oct 25, 2026 · Oct 25, 2026 · Oct 25, 2026
@@ -69,16 +69,25 @@
 
             @if (this.ShowDedicatedProgress && this.IsProcessing)
             {
-                @if (string.IsNullOrWhiteSpace(this.ProgressText))
+                @if (this.processingStartedAt is null && string.IsNullOrWhiteSpace(this.ProgressText))
                 {
                     <MudProgressLinear Color="Color.Primary" Indeterminate="true" Class="mb-6" />
                 }
                 else
                 {
                     <MudProgressLinear Color="Color.Primary" Indeterminate="true" Class="mb-2" />
-                    <MudText Typo="Typo.body2" Class="mb-6">
-                        @this.ProgressText
-                    </MudText>
+                    <MudStack Row="@true" AlignItems="@AlignItems.Center" Spacing="3" Class="mb-6">
+                        @if (this.processingStartedAt is { } startedAt)
+                        {
+                            <ElapsedTime Start="@startedAt"/>
+                        }
+                        @if (!string.IsNullOrWhiteSpace(this.ProgressText))
+                        {
+                            <MudText Typo="Typo.body2">
+                                @this.ProgressText
+                            </MudText>
+                        }
+                    </MudStack>
                 }
             }
 

@@ -180,6 +180,14 @@ protected virtual string? SendToChatVisibleUserPromptText
     private AssistantSessionKey assistantSessionKey;
     private MediaImportOwner CurrentMediaImportOwner => MediaImportOwner.ForAssistant(this.assistantSessionKey);
     private Guid? assistantSessionId;
+
+    /// <summary>
+    /// When the running session started, which the time below the progress bar counts from; null while
+    /// no session runs. It comes from the session, so an instance which returns to a running session
+    /// goes on counting where the first one was.
+    /// </summary>
+    private DateTimeOffset? processingStartedAt;
+
     private AssistantSessionSnapshot? pendingRenderedAssistantSessionSnapshot;
     private AssistantSessionSnapshot? lastAttachedAssistantSessionSnapshot;
 
@@ -311,6 +319,7 @@ private async Task Start()
         }
 
         this.assistantSessionId = startedSession.SessionId;
+        this.processingStartedAt = startedSession.StartedAt;
         await this.RefreshAssistantUIAsync();
 
         var sessionStatus = AssistantSessionStatus.COMPLETED;
@@ -343,6 +352,7 @@ private async Task Start()
         finally
         {
             this.IsProcessing = false;
+            this.processingStartedAt = null;
             var sessionCancellationTokenSource = this.CancellationTokenSource;
             this.CancellationTokenSource = null;
             if (this.assistantSessionId is { } sessionId)
@@ -1060,6 +1070,7 @@ private async Task AttachAssistantSession(AssistantSessionSnapshot snapshot, boo
         this.lastAttachedAssistantSessionSnapshot = snapshot;
         this.ChatThread = snapshot.ChatThread ?? this.ChatThread;
         this.IsProcessing = snapshot.IsActive;
+        this.processingStartedAt = snapshot.IsActive ? snapshot.StartedAt : null;
 
         if (!snapshot.IsActive)
             this.CancellationTokenSource = null;

@@ -3157,6 +3157,9 @@ UI_TEXT_CONTENT["AISTUDIO::ASSISTANTS::VISUALBRIEFING::VISUALBRIEFINGASSISTANT::
 -- Opened the visual briefing project folder.
 UI_TEXT_CONTENT["AISTUDIO::ASSISTANTS::VISUALBRIEFING::VISUALBRIEFINGASSISTANT::T2964042492"] = "Opened the visual briefing project folder."
 
+-- The visual briefing could not be exported. Please check that the target file is not open in another program.
+UI_TEXT_CONTENT["AISTUDIO::ASSISTANTS::VISUALBRIEFING::VISUALBRIEFINGASSISTANT::T3136382170"] = "The visual briefing could not be exported. Please check that the target file is not open in another program."
+
 -- Visual assets
 UI_TEXT_CONTENT["AISTUDIO::ASSISTANTS::VISUALBRIEFING::VISUALBRIEFINGASSISTANT::T3226971402"] = "Visual assets"
 
@@ -3286,6 +3289,9 @@ UI_TEXT_CONTENT["AISTUDIO::ASSISTANTS::VISUALBRIEFING::VISUALBRIEFINGASSISTANT::
 -- If you need help, report the problem and include the project ID.
 UI_TEXT_CONTENT["AISTUDIO::ASSISTANTS::VISUALBRIEFING::VISUALBRIEFINGASSISTANT::T4292361710"] = "If you need help, report the problem and include the project ID."
 
+-- The visual briefing could not be written completely.
+UI_TEXT_CONTENT["AISTUDIO::ASSISTANTS::VISUALBRIEFING::VISUALBRIEFINGASSISTANT::T442972740"] = "The visual briefing could not be written completely."
+
 -- The briefing was recompiled with the current AI Studio version.
 UI_TEXT_CONTENT["AISTUDIO::ASSISTANTS::VISUALBRIEFING::VISUALBRIEFINGASSISTANT::T453632597"] = "The briefing was recompiled with the current AI Studio version."
 
@@ -4702,6 +4708,30 @@ UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::DIRECTCHATLAUNCHERSETTINGSACTION::T244391
 -- Change what this tile opens
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::DIRECTCHATLAUNCHERSETTINGSACTION::T4272203100"] = "Change what this tile opens"
 
+-- Could not open the file location.
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::FILEEXPORTACTIONS::T1118835751"] = "Could not open the file location."
+
+-- Could not open the file: {0}
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::FILEEXPORTACTIONS::T1290686840"] = "Could not open the file: {0}"
+
+-- Open with the default program
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::FILEEXPORTACTIONS::T1332010305"] = "Open with the default program"
+
+-- Could not open the file location: {0}
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::FILEEXPORTACTIONS::T1455637941"] = "Could not open the file location: {0}"
+
+-- Show in the file manager
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::FILEEXPORTACTIONS::T3007835369"] = "Show in the file manager"
+
+-- Unknown error
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::FILEEXPORTACTIONS::T3461425987"] = "Unknown error"
+
+-- Could not open the file.
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::FILEEXPORTACTIONS::T362546438"] = "Could not open the file."
+
+-- Saving '{0}'...
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::FILEEXPORTRUNNINGMESSAGE::T1063135893"] = "Saving '{0}'..."
+
 -- LLMs can make mistakes. Check important information.
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::HALLUZINATIONREMINDER::T3528806904"] = "LLMs can make mistakes. Check important information."
 
@@ -5266,6 +5296,9 @@ UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T1594053136"]
 -- Color theme
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T1599198973"] = "Color theme"
 
+-- After you export a file, for example, an answer or a presentation, a message offers to show the file in your file manager or to open it. When enabled, this message closes after a few seconds, like other messages. When disabled, it stays until you close it.
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T160366478"] = "After you export a file, for example, an answer or a presentation, a message offers to show the file in your file manager or to open it. When enabled, this message closes after a few seconds, like other messages. When disabled, it stays until you close it."
+
 -- Would you like to set one of your profiles as the default for the entire app? When you configure a different profile for an assistant, it will always take precedence.
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T1666052109"] = "Would you like to set one of your profiles as the default for the entire app? When you configure a different profile for an assistant, it will always take precedence."
 
@@ -5317,6 +5350,9 @@ UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T215381891"]
 -- Enterprise Administration
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T2277116008"] = "Enterprise Administration"
 
+-- Close messages about exported files automatically?
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T2330147290"] = "Close messages about exported files automatically?"
+
 -- Language behavior
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T2341504363"] = "Language behavior"
 
@@ -5344,6 +5380,9 @@ UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T2700836219"]
 -- No preview features selected.
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T2809641588"] = "No preview features selected."
 
+-- The message stays until you close it
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T2879147627"] = "The message stays until you close it"
+
 -- This installation does not check for updates itself. Contact the person or organization that installed AI Studio for update information.
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T2918560776"] = "This installation does not check for updates itself. Contact the person or organization that installed AI Studio for update information."
 
@@ -5413,6 +5452,9 @@ UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T4004501229"]
 -- When enabled, spellchecking will be active in all input fields. Depending on your operating system, errors may not be visually highlighted, but right-clicking may still offer possible corrections.
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T4067492921"] = "When enabled, spellchecking will be active in all input fields. Depending on your operating system, errors may not be visually highlighted, but right-clicking may still offer possible corrections."
 
+-- The message closes after a few seconds
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T4102409342"] = "The message closes after a few seconds"
+
 -- Show details when suspicious content was removed?
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::SETTINGS::SETTINGSPANELAPP::T4156872850"] = "Show details when suspicious content was removed?"
 

@@ -562,6 +562,10 @@ private async Task CreatePresentationFileAsync()
         var targetPath = response.SaveFilePath;
         this.isWritingPresentation = true;
         this.StateHasChanged();
+
+        // Pictures make this take seconds, since each of them is prepared anew:
+        await using var feedback = new FileExportFeedback();
+        feedback.ShowRunning(targetPath);
         try
         {
             var options = new PresentationWriteOptions(this.variantLabel, this.footerText.Trim(), this.keepEmptyPicturePlaceholders);
@@ -582,7 +586,7 @@ private async Task CreatePresentationFileAsync()
                 await this.MessageBus.SendWarning(new(Icons.Material.Filled.HideImage, string.Format(T("These pictures could not be placed, because PowerPoint cannot show their format or they cannot be read: {0}"), string.Join(", ", names))));
             }
 
-            await this.MessageBus.SendSuccess(new(Icons.Material.Filled.Slideshow, T("The PowerPoint file was created.")));
+            await feedback.SucceededAsync(Icons.Material.Filled.Slideshow, T("The PowerPoint file was created."), targetPath, true);
         }
         catch (Exception e)
         {

@@ -134,8 +134,10 @@ private async Task ExportAsync()
         // why it gets no notice that AI generated it: any change would make it a version nobody checked.
         //
         await using var source = verified.Value.Stream;
-        await using var destination = new FileStream(response.SaveFilePath, FileMode.Create, FileAccess.Write, FileShare.None, 65_536, true);
-        await source.CopyToAsync(destination);
+        await using var feedback = new FileExportFeedback();
+        feedback.ShowRunning(response.SaveFilePath);
+        if (!await this.TryWriteExportAsync(source, response.SaveFilePath))
+            return;
 
         var exportedVersion = this.selectedBriefing.Versions.First(version =>
             version.RevisionId == this.selectedRevisionId);
@@ -150,7 +152,56 @@ private async Task ExportAsync()
             exportedVersion.DocumentHash,
             source.Length);
 
-        await this.MessageBus.SendSuccess(new(Icons.Material.Filled.FileDownload, T("The visual briefing was exported.")));
+        await feedback.SucceededAsync(Icons.Material.Filled.FileDownload, T("The visual briefing was exported."), response.SaveFilePath, true);
+    }
+
+    /// <summary>
+    /// Writes an exported version into the file the user chose, and tells the user when that fails.
+    /// </summary>
+    /// <remarks>
+    /// The file is written over rather than removed and created anew, which the Flatpak would not allow.
+    /// A file which cannot even be opened, e.g., because another program holds it, stays as it is. Once
+    /// writing has begun, a failure removes the file: half a briefing is worse than none.
+    /// </remarks>
+    /// <param name="source">The verified version to export.</param>
+    /// <param name="targetPath">The file the user chose.</param>
+    /// <returns>True, when the file was written completely.</returns>
+    private async Task<bool> TryWriteExportAsync(Stream source, string targetPath)
+    {
+        FileStream destination;
+        try
+        {
+            destination = new FileStream(targetPath, FileMode.Create, FileAccess.Write, FileShare.None, 65_536, true);
+        }
+        catch (Exception e)
+        {
+            this.Logger.LogError(e, "The visual briefing could not be exported, because the file '{FilePath}' cannot be opened for writing.", targetPath);
+            await this.MessageBus.SendError(new(Icons.Material.Filled.FileDownload, T("The visual briefing could not be exported. Please check that the target file is not open in another program.")));
+            return false;
+        }
+
+        try
+        {
+            await using (destination)
+                await source.CopyToAsync(destination);
+
+            return true;
+        }
+        catch (Exception e)
+        {
+            this.Logger.LogError(e, "Writing the visual briefing into the file '{FilePath}' failed.", targetPath);
+            try
+            {
+                File.Delete(targetPath);
+            }
+            catch (Exception deleteFailure)
+            {
+                this.Logger.LogWarning(deleteFailure, "The incomplete export '{FilePath}' cannot be deleted.", targetPath);
+            }
+
+            await this.MessageBus.SendError(new(Icons.Material.Filled.FileDownload, T("The visual briefing could not be written completely.")));
+            return false;
+        }
     }
 
     /// <summary>

@@ -32,9 +32,13 @@
                 @if (backupResult.Success)
                 {
                     <MudAlert Severity="@(backupResult.IncludesDataSourceIndexes ? Severity.Success : Severity.Warning)" Dense="@true" Class="mt-3">
-                        <MudText Typo="Typo.body2">
-                            @string.Format(T("Backed up {0} files into: {1}"), backupResult.FileCount, backupResult.ArchivePath)
-                        </MudText>
+                        @* Opening a backup with the default program would only unpack it, so the file manager is the one way offered. *@
+                        <MudStack Row="@true" AlignItems="@AlignItems.Center" Spacing="2">
+                            <MudText Typo="Typo.body2">
+                                @string.Format(T("Backed up {0} files into: {1}"), backupResult.FileCount, backupResult.ArchivePath)
+                            </MudText>
+                            <FileExportActions FilePath="@backupResult.ArchivePath" OffersOpening="@false"/>
+                        </MudStack>
                         @if (!backupResult.IncludesDataSourceIndexes)
                         {
                             <MudText Typo="Typo.body2">

@@ -0,0 +1,8 @@
+@inherits MSGComponentBase
+
+<MudStack Row="@true" AlignItems="@AlignItems.Center" Spacing="1">
+    <MudIcon Icon="@Icons.Material.Filled.Timer" Size="Size.Small"/>
+    <MudText Typo="Typo.body2">
+        @Format(DateTimeOffset.Now - this.Start)
+    </MudText>
+</MudStack>
@@ -0,0 +1,75 @@
+using Microsoft.AspNetCore.Components;
+
+namespace AIStudio.Components;
+
+/// <summary>
+/// Shows how long something has been running, counting up every second.
+/// </summary>
+/// <remarks>
+/// A model which thinks for minutes shows nothing for just as long, and the time is what tells the user
+/// that it still works. The component owns its timer and renders only itself once a second, not the
+/// page around it: an assistant would otherwise render its entire form every second.
+/// </remarks>
+public partial class ElapsedTime : MSGComponentBase
+{
+    private static readonly TimeSpan TICK_INTERVAL = TimeSpan.FromSeconds(1);
+
+    /// <summary>
+    /// When it started.
+    /// </summary>
+    [Parameter]
+    public DateTimeOffset Start { get; set; }
+
+    /// <summary>Stops counting.</summary>
+    private readonly CancellationTokenSource tickCancellation = new();
+
+    #region Overrides of ComponentBase
+
+    protected override async Task OnInitializedAsync()
+    {
+        await base.OnInitializedAsync();
+        this.TickAsync(this.tickCancellation.Token).Observe($"{nameof(ElapsedTime)}: counting the elapsed time");
+    }
+
+    #endregion
+
+    #region Overrides of MSGComponentBase
+
+    protected override void DisposeResources()
+    {
+        this.tickCancellation.Cancel();
+        this.tickCancellation.Dispose();
+        base.DisposeResources();
+    }
+
+    #endregion
+
+    /// <summary>
+    /// Writes a time span as minutes and seconds, and with the hours in front from the first hour on.
+    /// </summary>
+    /// <param name="elapsed">The time span; a negative one, e.g., after the clock was set back, counts as none.</param>
+    /// <returns>The time span, such as 4:07 or 1:02:09.</returns>
+    internal static string Format(TimeSpan elapsed)
+    {
+        if (elapsed < TimeSpan.Zero)
+            elapsed = TimeSpan.Zero;
+
+        var hours = (int)elapsed.TotalHours;
+        return hours > 0
+            ? $"{hours}:{elapsed.Minutes:00}:{elapsed.Seconds:00}"
+            : $"{elapsed.Minutes}:{elapsed.Seconds:00}";
+    }
+
+    private async Task TickAsync(CancellationToken token)
+    {
+        using var timer = new PeriodicTimer(TICK_INTERVAL);
+        try
+        {
+            while (await timer.WaitForNextTickAsync(token))
+                await this.InvokeAsync(this.StateHasChanged);
+        }
+        catch (OperationCanceledException) when (token.IsCancellationRequested)
+        {
+        }
+    }
+}
@@ -0,0 +1,13 @@
+@inherits MSGComponentBase
+
+<MudStack Row="@true" AlignItems="@AlignItems.Center" Spacing="0">
+    <MudTooltip Text="@T("Show in the file manager")" Placement="Placement.Top">
+        <MudIconButton Icon="@Icons.Material.Filled.FolderOpen" Size="Size.Small" OnClick="@this.ShowInFileManager"/>
+    </MudTooltip>
+    @if (this.OffersOpening)
+    {
+        <MudTooltip Text="@T("Open with the default program")" Placement="Placement.Top">
+            <MudIconButton Icon="@Icons.Material.Filled.OpenInNew" Size="Size.Small" OnClick="@this.OpenWithDefaultProgram"/>
+        </MudTooltip>
+    }
+</MudStack>