Fixed escape key handling

app/MindWork AI Studio/Dialogs/WorkspaceSelectionDialog.razor

@@ -1,63 +1,59 @@
 @inherits MSGComponentBase
 <MudDialog>
     <DialogContent>
-        <div @onkeydown="@this.HandleDialogKeyDown">
-            <MudText Typo="Typo.body1">
-                @this.Message
-            </MudText>
-            <MudList T="Guid" @bind-SelectedValue="@this.selectedWorkspace">
-                @foreach (var workspace in this.workspaces)
-                {
-                    <MudListItem Text="@workspace.Name" Icon="@Icons.Material.Filled.Description" Value="@workspace.WorkspaceId" />
-                }
-            </MudList>
-        </div>
+        <MudText Typo="Typo.body1">
+            @this.Message
+        </MudText>
+        <MudList T="Guid" @bind-SelectedValue="@this.selectedWorkspace">
+            @foreach (var workspace in this.workspaces)
+            {
+                <MudListItem Text="@workspace.Name" Icon="@Icons.Material.Filled.Description" Value="@workspace.WorkspaceId" />
+            }
+        </MudList>
     </DialogContent>
     <DialogActions>
-        <div style="width: 100%;" @onkeydown="@this.HandleDialogKeyDown">
-            <MudStack Style="width: 100%;" Spacing="2">
-                <MudDivider/>
+        <MudStack Style="width: 100%;" Spacing="2">
+            <MudDivider/>
 
+            @if (this.showCreateWorkspaceForm)
+            {
+                <MudForm @ref="this.createWorkspaceForm">
+                    <MudTextField T="string"
+                                  @bind-Text="@this.newWorkspaceName"
+                                  Variant="Variant.Outlined"
+                                  AutoGrow="@false"
+                                  Lines="1"
+                                  Label="@T("Workspace name")"
+                                  Immediate="@true"
+                                  Disabled="@this.isCreatingWorkspace"
+                                  OnKeyDown="@this.HandleNewWorkspaceNameKeyDown"
+                                  Validation="@this.ValidateNewWorkspaceName" />
+                </MudForm>
+            }
+            else
+            {
+                <MudButton StartIcon="@Icons.Material.Filled.LibraryAdd" Variant="Variant.Filled" OnClick="@this.ShowCreateWorkspaceForm">
+                    @T("Create new workspace")
+                </MudButton>
+            }
+
+            <MudStack Row="@true" Justify="Justify.FlexEnd" AlignItems="AlignItems.Center" Wrap="Wrap.NoWrap" Spacing="2">
+                <MudButton OnClick="@this.Cancel" Variant="Variant.Filled">
+                    @T("Cancel")
+                </MudButton>
                 @if (this.showCreateWorkspaceForm)
                 {
-                    <MudForm @ref="this.createWorkspaceForm">
-                        <MudTextField T="string"
-                                      @bind-Text="@this.newWorkspaceName"
-                                      Variant="Variant.Outlined"
-                                      AutoGrow="@false"
-                                      Lines="1"
-                                      Label="@T("Workspace name")"
-                                      Immediate="@true"
-                                      Disabled="@this.isCreatingWorkspace"
-                                      OnKeyDown="@this.HandleNewWorkspaceNameKeyDown"
-                                      Validation="@this.ValidateNewWorkspaceName" />
-                    </MudForm>
+                    <MudButton OnClick="@this.CreateWorkspaceAsync" Variant="Variant.Filled" Color="Color.Info" Disabled="@this.isCreatingWorkspace">
+                        @T("Add workspace")
+                    </MudButton>
                 }
                 else
                 {
-                    <MudButton StartIcon="@Icons.Material.Filled.LibraryAdd" Variant="Variant.Filled" OnClick="@this.ShowCreateWorkspaceForm">
-                        @T("Create new workspace")
+                    <MudButton OnClick="@this.Confirm" Variant="Variant.Filled" Color="Color.Info" Disabled="@(this.selectedWorkspace == Guid.Empty)">
+                        @this.ConfirmText
                     </MudButton>
                 }
-
-                <MudStack Row="@true" Justify="Justify.FlexEnd" AlignItems="AlignItems.Center" Wrap="Wrap.NoWrap" Spacing="2">
-                    <MudButton OnClick="@this.Cancel" Variant="Variant.Filled">
-                        @T("Cancel")
-                    </MudButton>
-                    @if (this.showCreateWorkspaceForm)
-                    {
-                        <MudButton OnClick="@this.CreateWorkspaceAsync" Variant="Variant.Filled" Color="Color.Info" Disabled="@this.isCreatingWorkspace">
-                            @T("Add workspace")
-                        </MudButton>
-                    }
-                    else
-                    {
-                        <MudButton OnClick="@this.Confirm" Variant="Variant.Filled" Color="Color.Info" Disabled="@(this.selectedWorkspace == Guid.Empty)">
-                            @this.ConfirmText
-                        </MudButton>
-                    }
-                </MudStack>
             </MudStack>
-        </div>
+        </MudStack>
     </DialogActions>
 </MudDialog>

app/MindWork AI Studio/Dialogs/WorkspaceSelectionDialog.razor.cs

@@ -12,6 +12,9 @@ public partial class WorkspaceSelectionDialog : MSGComponentBase
     [CascadingParameter]
     private IMudDialogInstance MudDialog { get; set; } = null!;
 
+    [Inject]
+    private IJSRuntime JsRuntime { get; init; } = null!;
+
     [Parameter]
     public string Message { get; set; } = string.Empty;
     
@@ -22,7 +25,9 @@ public partial class WorkspaceSelectionDialog : MSGComponentBase
     public string ConfirmText { get; set; } = "OK";
     
     private readonly List<WorkspaceSelectionItem> workspaces = [];
-    private MudForm createWorkspaceForm = null!;
+    private readonly string escapeHandlerId = $"workspace-selection-dialog-{Guid.NewGuid():N}";
+    private MudForm? createWorkspaceForm;
+    private DotNetObjectReference<WorkspaceSelectionDialog>? dotNetReference;
     private Guid selectedWorkspace;
     private string newWorkspaceName = string.Empty;
     private bool isCreatingWorkspace;
@@ -44,6 +49,17 @@ public partial class WorkspaceSelectionDialog : MSGComponentBase
         await base.OnInitializedAsync();
     }
 
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if (firstRender)
+        {
+            this.dotNetReference = DotNetObjectReference.Create(this);
+            await this.JsRuntime.InvokeVoidAsync("registerEscapeHandler", this.escapeHandlerId, this.dotNetReference);
+        }
+
+        await base.OnAfterRenderAsync(firstRender);
+    }
+
     #endregion
 
     private string? ValidateNewWorkspaceName(string? workspaceName)
@@ -80,16 +96,6 @@ public partial class WorkspaceSelectionDialog : MSGComponentBase
         await this.CreateWorkspaceAsync();
     }
 
-    private void HandleDialogKeyDown(KeyboardEventArgs keyEvent)
-    {
-        var key = keyEvent.Key.ToLowerInvariant();
-        var code = keyEvent.Code.ToLowerInvariant();
-        if (key is not "escape" && code is not "escape")
-            return;
-
-        this.Cancel();
-    }
-
     private void ShowCreateWorkspaceForm()
     {
         this.createWorkspaceError = null;
@@ -100,6 +106,9 @@ public partial class WorkspaceSelectionDialog : MSGComponentBase
 
     private async Task CreateWorkspaceAsync()
     {
+        if (this.createWorkspaceForm is null)
+            return;
+
         this.createWorkspaceError = null;
         this.createWorkspaceErrorName = null;
         await this.createWorkspaceForm.Validate();
@@ -141,9 +150,40 @@ public partial class WorkspaceSelectionDialog : MSGComponentBase
         this.createWorkspaceError = null;
         this.createWorkspaceErrorName = null;
         this.newWorkspaceName = string.Empty;
-        this.createWorkspaceForm.ResetValidation();
+        this.createWorkspaceForm?.ResetValidation();
         this.showCreateWorkspaceForm = false;
     }
+
+    [JSInvokable]
+    public async Task HandleEscapeKeyAsync()
+    {
+        await this.InvokeAsync(() =>
+        {
+            this.Cancel();
+            this.StateHasChanged();
+        });
+    }
     
     private void Confirm() => this.MudDialog.Close(DialogResult.Ok(this.selectedWorkspace));
+
+    #region Overrides of MSGComponentBase
+
+    protected override void DisposeResources()
+    {
+        try
+        {
+            _ = this.JsRuntime.InvokeVoidAsync("unregisterEscapeHandler", this.escapeHandlerId).AsTask();
+        }
+        catch
+        {
+            // Ignore JS cleanup errors while the dialog is being disposed.
+        }
+
+        this.dotNetReference?.Dispose();
+        this.dotNetReference = null;
+
+        base.DisposeResources();
+    }
+
+    #endregion
 }

app/MindWork AI Studio/wwwroot/app.js

@@ -131,3 +131,30 @@ window.formatChatInputMarkdown = function (inputId, formatType) {
 
     return nextValue
 }
+
+const escapeHandlers = new Map()
+
+window.registerEscapeHandler = function (id, dotNetReference) {
+    window.unregisterEscapeHandler(id)
+
+    const handler = function (event) {
+        if (event.key !== 'Escape')
+            return
+
+        event.preventDefault()
+        event.stopPropagation()
+        dotNetReference.invokeMethodAsync('HandleEscapeKeyAsync').catch(() => {})
+    }
+
+    document.addEventListener('keydown', handler, true)
+    escapeHandlers.set(id, handler)
+}
+
+window.unregisterEscapeHandler = function (id) {
+    const handler = escapeHandlers.get(id)
+    if (!handler)
+        return
+
+    document.removeEventListener('keydown', handler, true)
+    escapeHandlers.delete(id)
+}