Add layer-based drop area handling and prioritization

app/MindWork AI Studio/Assistants/DocumentAnalysis/DocumentAnalysisAssistant.razor

@@ -103,7 +103,7 @@ else
             @T("Documents for the analysis")
         </MudText>
         
-        <AttachDocuments Name="Document Analysis Files" @bind-DocumentPaths="@this.loadedDocumentPaths" CatchAllDocuments="true" UseSmallForm="false" Provider="@this.providerSettings"/>
+        <AttachDocuments Name="Document Analysis Files" Layer="@DropLayers.ASSISTANTS" @bind-DocumentPaths="@this.loadedDocumentPaths" CatchAllDocuments="true" UseSmallForm="false" Provider="@this.providerSettings"/>
         
     </ExpansionPanel>
 </MudExpansionPanels>

app/MindWork AI Studio/Components/AttachDocuments.razor.cs

@@ -17,6 +17,18 @@ public partial class AttachDocuments : MSGComponentBase
     
     [Parameter]
     public string Name { get; set; } = string.Empty;
+    
+    /// <summary>
+    /// On which layer to register the drop area. Higher layers have priority over lower layers.
+    /// </summary>
+    [Parameter]
+    public int Layer { get; set; }
+    
+    /// <summary>
+    /// When true, pause catching dropped files. Default is false.
+    /// </summary>
+    [Parameter]
+    public bool PauseCatchingDrops { get; set; }
 
     [Parameter]
     public HashSet<FileAttachment> DocumentPaths { get; set; } = [];
@@ -63,6 +75,7 @@ public partial class AttachDocuments : MSGComponentBase
     private const Placement TOOLBAR_TOOLTIP_PLACEMENT = Placement.Top;
     private static readonly string DROP_FILES_HERE_TEXT = TB("Drop files here to attach them.");
     
+    private uint numDropAreasAboveThis;
     private bool isComponentHovered;
     private bool isDraggingOver;
     
@@ -70,7 +83,10 @@ public partial class AttachDocuments : MSGComponentBase
 
     protected override async Task OnInitializedAsync()
     {
-        this.ApplyFilters([], [ Event.TAURI_EVENT_RECEIVED ]);
+        this.ApplyFilters([], [ Event.TAURI_EVENT_RECEIVED, Event.REGISTER_FILE_DROP_AREA, Event.UNREGISTER_FILE_DROP_AREA ]);
+        
+        // Register this drop area:
+        await this.MessageBus.SendMessage(this, Event.REGISTER_FILE_DROP_AREA, this.Layer);
         await base.OnInitializedAsync();
     }
 
@@ -78,7 +94,35 @@ public partial class AttachDocuments : MSGComponentBase
     {
         switch (triggeredEvent)
         {
+            case Event.REGISTER_FILE_DROP_AREA when sendingComponent != this:
+            {
+                if(data is int layer && layer > this.Layer)
+                {
+                    this.numDropAreasAboveThis++;
+                    this.PauseCatchingDrops = true;
+                }
+
+                break;
+            }
+
+            case Event.UNREGISTER_FILE_DROP_AREA when sendingComponent != this:
+            {
+                if(data is int layer && layer > this.Layer)
+                {
+                    if(this.numDropAreasAboveThis > 0)
+                        this.numDropAreasAboveThis--;
+                    
+                    if(this.numDropAreasAboveThis is 0)
+                        this.PauseCatchingDrops = false;
+                }
+
+                break;
+            }
+
             case Event.TAURI_EVENT_RECEIVED when data is TauriEvent { EventType: TauriEventType.FILE_DROP_HOVERED }:
+                if(this.PauseCatchingDrops)
+                    return;
+                
                 if(!this.isComponentHovered && !this.CatchAllDocuments)
                 {
                     this.Logger.LogDebug("Attach documents component '{Name}' is not hovered, ignoring file drop hovered event.", this.Name);
@@ -91,11 +135,17 @@ public partial class AttachDocuments : MSGComponentBase
                 break;
             
             case Event.TAURI_EVENT_RECEIVED when data is TauriEvent { EventType: TauriEventType.FILE_DROP_CANCELED }:
+                if(this.PauseCatchingDrops)
+                    return;
+                
                 this.isDraggingOver = false;
                 this.StateHasChanged();
                 break;
             
             case Event.TAURI_EVENT_RECEIVED when data is TauriEvent { EventType: TauriEventType.WINDOW_NOT_FOCUSED }:
+                if(this.PauseCatchingDrops)
+                    return;
+                
                 this.isDraggingOver = false;
                 this.isComponentHovered = false;
                 this.ClearDragClass();
@@ -103,6 +153,9 @@ public partial class AttachDocuments : MSGComponentBase
                 break;
             
             case Event.TAURI_EVENT_RECEIVED when data is TauriEvent { EventType: TauriEventType.FILE_DROP_DROPPED, Payload: var paths }:
+                if(this.PauseCatchingDrops)
+                    return;
+                
                 if(!this.isComponentHovered && !this.CatchAllDocuments)
                 {
                     this.Logger.LogDebug("Attach documents component '{Name}' is not hovered, ignoring file drop dropped event.", this.Name);
@@ -198,6 +251,9 @@ public partial class AttachDocuments : MSGComponentBase
     
     private void OnMouseEnter(EventArgs _)
     {
+        if(this.PauseCatchingDrops)
+            return;
+        
         this.Logger.LogDebug("Attach documents component '{Name}' is hovered.", this.Name);
         this.isComponentHovered = true;
         this.SetDragClass();
@@ -206,6 +262,9 @@ public partial class AttachDocuments : MSGComponentBase
     
     private void OnMouseLeave(EventArgs _)
     {
+        if(this.PauseCatchingDrops)
+            return;
+        
         this.Logger.LogDebug("Attach documents component '{Name}' is no longer hovered.", this.Name);
         this.isComponentHovered = false;
         this.ClearDragClass();

app/MindWork AI Studio/Components/ChatComponent.razor

@@ -82,7 +82,7 @@
             }
             
             <ChatTemplateSelection CanChatThreadBeUsedForTemplate="@this.CanThreadBeSaved" CurrentChatThread="@this.ChatThread" CurrentChatTemplate="@this.currentChatTemplate" CurrentChatTemplateChanged="@this.ChatTemplateWasChanged"/>
-            <AttachDocuments Name="File Attachments" @bind-DocumentPaths="@this.chatDocumentPaths" CatchAllDocuments="true" UseSmallForm="true" Provider="@this.Provider"/>
+            <AttachDocuments Name="File Attachments" Layer="@DropLayers.PAGES" @bind-DocumentPaths="@this.chatDocumentPaths" CatchAllDocuments="true" UseSmallForm="true" Provider="@this.Provider"/>
 
             @if (this.SettingsManager.ConfigurationData.Workspace.StorageBehavior is WorkspaceStorageBehavior.STORE_CHATS_AUTOMATICALLY)
             {

app/MindWork AI Studio/Dialogs/ChatTemplateDialog.razor

@@ -86,9 +86,10 @@
             </MudJustifiedText>
             <AttachDocuments
                 Name="ChatTemplateFileAttachments"
+                Layer="@DropLayers.DIALOGS"
                 @bind-DocumentPaths="@this.fileAttachments"
                 UseSmallForm="false"
-                CatchAllDocuments="false"
+                CatchAllDocuments="true"
                 ValidateMediaFileTypes="false"
             />
 

app/MindWork AI Studio/Tools/DropLayers.cs

@@ -0,0 +1,11 @@
+namespace AIStudio.Tools;
+
+public static class DropLayers
+{
+    public const int ROOT = 0;
+    
+    public const int PAGES = 10;
+    public const int ASSISTANTS = 20;
+    
+    public const int DIALOGS = 100;
+}

app/MindWork AI Studio/Tools/Event.cs

@@ -34,6 +34,10 @@ public enum Event
     // RAG events:
     RAG_AUTO_DATA_SOURCES_SELECTED,
     
+    // File attachment events:
+    REGISTER_FILE_DROP_AREA,
+    UNREGISTER_FILE_DROP_AREA,
+    
     // Send events:
     SEND_TO_GRAMMAR_SPELLING_ASSISTANT,
     SEND_TO_ICON_FINDER_ASSISTANT,