From b59e03e2ac1b1f397e7d4c35d000f058323941bf Mon Sep 17 00:00:00 2001
From: Thorsten Sommer <SommerEngineering@users.noreply.github.com>
Date: Thu, 10 Sep 2026 19:14:15 +0200
Subject: [PATCH] Add a drop zone to the custom tokenizer of both provider
 dialogs

---
 .../Assistants/I18N/allTexts.lua              | 12 +++++
 .../Dialogs/EmbeddingProviderDialog.razor     | 47 ++++++++++---------
 .../Dialogs/EmbeddingProviderDialog.razor.cs  | 26 +++++++++-
 .../Dialogs/ProviderDialog.razor              | 47 ++++++++++---------
 .../Dialogs/ProviderDialog.razor.cs           | 24 ++++++++++
 .../plugin.lua                                | 12 +++++
 .../plugin.lua                                | 12 +++++
 7 files changed, 137 insertions(+), 43 deletions(-)

diff --git a/app/MindWork AI Studio/Assistants/I18N/allTexts.lua b/app/MindWork AI Studio/Assistants/I18N/allTexts.lua
index 7f71d85e..583a5252 100644
--- a/app/MindWork AI Studio/Assistants/I18N/allTexts.lua	
+++ b/app/MindWork AI Studio/Assistants/I18N/allTexts.lua	
@@ -6505,9 +6505,15 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2189814010"] = "Mo
 -- Embedding batch size
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2209963239"] = "Embedding batch size"
 
+-- You can also drag & drop the tokenizer file here.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2282234384"] = "You can also drag & drop the tokenizer file here."
+
 -- (Optional) API Key
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2331453405"] = "(Optional) API Key"
 
+-- Please drop a tokenizer file in the JSON format.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2331986401"] = "Please drop a tokenizer file in the JSON format."
+
 -- Failed to remove the API key from the operating system. The message was: {0}. Please try again.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2439094236"] = "Failed to remove the API key from the operating system. The message was: {0}. Please try again."
 
@@ -6955,9 +6961,15 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2141072961"] = "Use detecte
 -- Model
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2189814010"] = "Model"
 
+-- You can also drag & drop the tokenizer file here.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2282234384"] = "You can also drag & drop the tokenizer file here."
+
 -- (Optional) API Key
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2331453405"] = "(Optional) API Key"
 
+-- Please drop a tokenizer file in the JSON format.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2331986401"] = "Please drop a tokenizer file in the JSON format."
+
 -- Failed to remove the API key from the operating system. The message was: {0}. Please try again.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2439094236"] = "Failed to remove the API key from the operating system. The message was: {0}. Please try again."
 
diff --git a/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor b/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor
index fe2d116a..b60f4d64 100644
--- a/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor	
+++ b/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor	
@@ -187,27 +187,32 @@
                             Disabled="@this.IsEnterpriseConfiguration"
                             Validation="@this.ValidateEmbeddingBatchSize"
                             HelperText="@T("How many chunks are sent to the embedding provider at once. The default is 1.")"/>
-                        <MudStack Row="@true" Spacing="3" Class="mb-3" StretchItems="StretchItems.None" AlignItems="AlignItems.Center">
-                            <MudTextField
-                                T="string"
-                                Text="@this.dataFilePath"
-                                TextChanged="@this.OnDataFilePathChanged"
-                                Label="@T("Selected file path for the custom tokenizer")"
-                                Disabled="@this.IsEnterpriseConfiguration"
-                                Validation="@this.providerValidation.ValidatingCustomTokenizer"
-                                Adornment="Adornment.Start"
-                                AdornmentIcon="@Icons.Material.Filled.AttachFile"
-                                UserAttributes="@SPELLCHECK_ATTRIBUTES"
-                                Variant="Variant.Outlined"
-                                Clearable="@true"
-                                Error="@(!string.IsNullOrWhiteSpace(this.dataCustomTokenizerValidationIssue))"
-                                ErrorText="@this.dataCustomTokenizerValidationIssue"
-                                OnClearButtonClick="@this.ClearPathTokenizer"
-                            />
-                            <MudButton StartIcon="@Icons.Material.Filled.FolderOpen" Variant="Variant.Outlined" Color="Color.Primary" Disabled="@(this.IsEnterpriseConfiguration || this.isTokenizerFileDialogOpen)" OnClick="@this.OpenTokenizerFileDialog">
-                                @T("Choose File")
-                            </MudButton>
-                        </MudStack>
+                        <PathDropZone IdPrefix="tokenizer" Disabled="@(() => this.IsEnterpriseConfiguration)" OnPathsDropped="@this.OnTokenizerPathsDropped">
+                            <MudStack Row="@true" Spacing="3" Class="mb-3" StretchItems="StretchItems.None" AlignItems="AlignItems.Center">
+                                <MudTextField
+                                    T="string"
+                                    Text="@this.dataFilePath"
+                                    TextChanged="@this.OnDataFilePathChanged"
+                                    Label="@T("Selected file path for the custom tokenizer")"
+                                    Disabled="@this.IsEnterpriseConfiguration"
+                                    Validation="@this.providerValidation.ValidatingCustomTokenizer"
+                                    Adornment="Adornment.Start"
+                                    AdornmentIcon="@Icons.Material.Filled.AttachFile"
+                                    UserAttributes="@SPELLCHECK_ATTRIBUTES"
+                                    Variant="Variant.Outlined"
+                                    Clearable="@true"
+                                    Error="@(!string.IsNullOrWhiteSpace(this.dataCustomTokenizerValidationIssue))"
+                                    ErrorText="@this.dataCustomTokenizerValidationIssue"
+                                    OnClearButtonClick="@this.ClearPathTokenizer"
+                                />
+                                <MudButton StartIcon="@Icons.Material.Filled.FolderOpen" Variant="Variant.Outlined" Color="Color.Primary" Disabled="@(this.IsEnterpriseConfiguration || this.isTokenizerFileDialogOpen)" OnClick="@this.OpenTokenizerFileDialog">
+                                    @T("Choose File")
+                                </MudButton>
+                            </MudStack>
+                            <MudText Typo="Typo.body2">
+                                @T("You can also drag & drop the tokenizer file here.")
+                            </MudText>
+                        </PathDropZone>
                     </MudCollapse>
                 </MudStack>
             }
diff --git a/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor.cs b/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor.cs
index 81e201b5..bde93e45 100644
--- a/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor.cs	
+++ b/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor.cs	
@@ -388,7 +388,31 @@ public partial class EmbeddingProviderDialog : MSGComponentBase, ISecretId
     {
         return this.OnDataFilePathChanged(string.Empty);
     }
-    
+
+    /// <summary>
+    /// Takes the first dropped path which can serve as a tokenizer.
+    /// </summary>
+    /// <remarks>
+    /// A provider carries exactly one tokenizer, so a multi-selection cannot be honored as a whole.
+    /// Everything which is not a readable JSON file is skipped rather than handed to the runtime:
+    /// the validation would reject it anyway, and saying so right away names the actual mistake.
+    /// </remarks>
+    /// <param name="paths">The dropped paths.</param>
+    private async Task OnTokenizerPathsDropped(List<string> paths)
+    {
+        foreach (var path in paths)
+        {
+            if (!File.Exists(path) || !FileTypes.IsAllowedPath(path, FileTypes.JSON))
+                continue;
+
+            await this.OnDataFilePathChanged(path);
+            return;
+        }
+
+        this.Logger.LogWarning("None of the {Count} dropped path(s) could be used as a tokenizer.", paths.Count);
+        await this.MessageBus.SendWarning(new(Icons.Material.Filled.Warning, T("Please drop a tokenizer file in the JSON format.")));
+    }
+
     private async Task OnDataFilePathChanged(string filePath)
     {
         this.dataFilePath = filePath;
diff --git a/app/MindWork AI Studio/Dialogs/ProviderDialog.razor b/app/MindWork AI Studio/Dialogs/ProviderDialog.razor
index d4642b47..50c36e64 100644
--- a/app/MindWork AI Studio/Dialogs/ProviderDialog.razor	
+++ b/app/MindWork AI Studio/Dialogs/ProviderDialog.razor	
@@ -251,27 +251,32 @@
                         <MudJustifiedText Typo="Typo.body1" Class="mt-4 mb-3">
                             @T("For better token estimates, you can configure a custom tokenizer for this provider.")
                         </MudJustifiedText>
-                        <MudStack Row="@true" Spacing="3" Class="mb-3" StretchItems="StretchItems.None" AlignItems="AlignItems.Center">
-                            <MudTextField
-                                T="string"
-                                Text="@this.dataFilePath"
-                                TextChanged="@this.OnDataFilePathChanged"
-                                Label="@T("Selected file path for the custom tokenizer")"
-                                Disabled="@this.IsEnterpriseConfiguration"
-                                Validation="@this.providerValidation.ValidatingCustomTokenizer"
-                                Adornment="Adornment.Start"
-                                AdornmentIcon="@Icons.Material.Filled.AttachFile"
-                                UserAttributes="@SPELLCHECK_ATTRIBUTES"
-                                Variant="Variant.Outlined"
-                                Clearable="@true"
-                                Error="@(!string.IsNullOrWhiteSpace(this.dataCustomTokenizerValidationIssue))"
-                                ErrorText="@this.dataCustomTokenizerValidationIssue"
-                                OnClearButtonClick="@this.ClearPathTokenizer"
-                            />
-                            <MudButton StartIcon="@Icons.Material.Filled.FolderOpen" Variant="Variant.Outlined" Color="Color.Primary" Disabled="@(this.IsEnterpriseConfiguration || this.isTokenizerFileDialogOpen)" OnClick="@this.OpenTokenizerFileDialog">
-                                @T("Choose File")
-                            </MudButton>
-                        </MudStack>
+                        <PathDropZone IdPrefix="tokenizer" Disabled="@(() => this.IsEnterpriseConfiguration)" OnPathsDropped="@this.OnTokenizerPathsDropped">
+                            <MudStack Row="@true" Spacing="3" Class="mb-3" StretchItems="StretchItems.None" AlignItems="AlignItems.Center">
+                                <MudTextField
+                                    T="string"
+                                    Text="@this.dataFilePath"
+                                    TextChanged="@this.OnDataFilePathChanged"
+                                    Label="@T("Selected file path for the custom tokenizer")"
+                                    Disabled="@this.IsEnterpriseConfiguration"
+                                    Validation="@this.providerValidation.ValidatingCustomTokenizer"
+                                    Adornment="Adornment.Start"
+                                    AdornmentIcon="@Icons.Material.Filled.AttachFile"
+                                    UserAttributes="@SPELLCHECK_ATTRIBUTES"
+                                    Variant="Variant.Outlined"
+                                    Clearable="@true"
+                                    Error="@(!string.IsNullOrWhiteSpace(this.dataCustomTokenizerValidationIssue))"
+                                    ErrorText="@this.dataCustomTokenizerValidationIssue"
+                                    OnClearButtonClick="@this.ClearPathTokenizer"
+                                />
+                                <MudButton StartIcon="@Icons.Material.Filled.FolderOpen" Variant="Variant.Outlined" Color="Color.Primary" Disabled="@(this.IsEnterpriseConfiguration || this.isTokenizerFileDialogOpen)" OnClick="@this.OpenTokenizerFileDialog">
+                                    @T("Choose File")
+                                </MudButton>
+                            </MudStack>
+                            <MudText Typo="Typo.body2">
+                                @T("You can also drag & drop the tokenizer file here.")
+                            </MudText>
+                        </PathDropZone>
                     }
                 </MudCollapse>
             </MudStack>
diff --git a/app/MindWork AI Studio/Dialogs/ProviderDialog.razor.cs b/app/MindWork AI Studio/Dialogs/ProviderDialog.razor.cs
index e4831b9f..0eecec82 100644
--- a/app/MindWork AI Studio/Dialogs/ProviderDialog.razor.cs	
+++ b/app/MindWork AI Studio/Dialogs/ProviderDialog.razor.cs	
@@ -425,6 +425,30 @@ public partial class ProviderDialog : MSGComponentBase, ISecretId
         return this.OnDataFilePathChanged(string.Empty);
     }
 
+    /// <summary>
+    /// Takes the first dropped path which can serve as a tokenizer.
+    /// </summary>
+    /// <remarks>
+    /// A provider carries exactly one tokenizer, so a multi-selection cannot be honored as a whole.
+    /// Everything which is not a readable JSON file is skipped rather than handed to the runtime:
+    /// the validation would reject it anyway, and saying so right away names the actual mistake.
+    /// </remarks>
+    /// <param name="paths">The dropped paths.</param>
+    private async Task OnTokenizerPathsDropped(List<string> paths)
+    {
+        foreach (var path in paths)
+        {
+            if (!File.Exists(path) || !FileTypes.IsAllowedPath(path, FileTypes.JSON))
+                continue;
+
+            await this.OnDataFilePathChanged(path);
+            return;
+        }
+
+        this.Logger.LogWarning("None of the {Count} dropped path(s) could be used as a tokenizer.", paths.Count);
+        await this.MessageBus.SendWarning(new(Icons.Material.Filled.Warning, T("Please drop a tokenizer file in the JSON format.")));
+    }
+
     private async Task OnDataFilePathChanged(string filePath)
     {
         this.dataFilePath = filePath;
diff --git a/app/MindWork AI Studio/Plugins/languages/de-de-43065dbc-78d0-45b7-92be-f14c2926e2dc/plugin.lua b/app/MindWork AI Studio/Plugins/languages/de-de-43065dbc-78d0-45b7-92be-f14c2926e2dc/plugin.lua
index 0cf69a8e..5c97ddee 100644
--- a/app/MindWork AI Studio/Plugins/languages/de-de-43065dbc-78d0-45b7-92be-f14c2926e2dc/plugin.lua	
+++ b/app/MindWork AI Studio/Plugins/languages/de-de-43065dbc-78d0-45b7-92be-f14c2926e2dc/plugin.lua	
@@ -6507,9 +6507,15 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2189814010"] = "Mo
 -- Embedding batch size
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2209963239"] = "Batch-Größe für Einbettungen"
 
+-- You can also drag & drop the tokenizer file here.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2282234384"] = "Sie können die Tokenizer-Datei auch per Drag-and-Drop hierher ziehen."
+
 -- (Optional) API Key
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2331453405"] = "(Optional) API-Schlüssel"
 
+-- Please drop a tokenizer file in the JSON format.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2331986401"] = "Bitte legen Sie hier eine Tokenizer-Datei im JSON-Format ab."
+
 -- Failed to remove the API key from the operating system. The message was: {0}. Please try again.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2439094236"] = "Der API-Schlüssel konnte nicht aus dem Betriebssystem entfernt werden. Die Meldung lautete: {0}. Bitte versuchen Sie es erneut."
 
@@ -6957,9 +6963,15 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2141072961"] = "Erkanntes M
 -- Model
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2189814010"] = "Modell"
 
+-- You can also drag & drop the tokenizer file here.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2282234384"] = "Sie können die Tokenizer-Datei auch per Drag-and-Drop hierher ziehen."
+
 -- (Optional) API Key
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2331453405"] = "(Optional) API-Schlüssel"
 
+-- Please drop a tokenizer file in the JSON format.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2331986401"] = "Bitte legen Sie eine Tokenizer-Datei im JSON-Format ab."
+
 -- Failed to remove the API key from the operating system. The message was: {0}. Please try again.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2439094236"] = "Fehler beim Löschen des API-Schlüssels vom Betriebssystem. Die Nachricht war: {0}. Bitte versuchen Sie es erneut."
 
diff --git a/app/MindWork AI Studio/Plugins/languages/en-us-97dfb1ba-50c4-4440-8dfa-6575daf543c8/plugin.lua b/app/MindWork AI Studio/Plugins/languages/en-us-97dfb1ba-50c4-4440-8dfa-6575daf543c8/plugin.lua
index 0fbcbe94..f26294a4 100644
--- a/app/MindWork AI Studio/Plugins/languages/en-us-97dfb1ba-50c4-4440-8dfa-6575daf543c8/plugin.lua	
+++ b/app/MindWork AI Studio/Plugins/languages/en-us-97dfb1ba-50c4-4440-8dfa-6575daf543c8/plugin.lua	
@@ -6507,9 +6507,15 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2189814010"] = "Mo
 -- Embedding batch size
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2209963239"] = "Embedding batch size"
 
+-- You can also drag & drop the tokenizer file here.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2282234384"] = "You can also drag & drop the tokenizer file here."
+
 -- (Optional) API Key
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2331453405"] = "(Optional) API Key"
 
+-- Please drop a tokenizer file in the JSON format.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2331986401"] = "Please drop a tokenizer file in the JSON format."
+
 -- Failed to remove the API key from the operating system. The message was: {0}. Please try again.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::EMBEDDINGPROVIDERDIALOG::T2439094236"] = "Failed to remove the API key from the operating system. The message was: {0}. Please try again."
 
@@ -6957,9 +6963,15 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2141072961"] = "Use detecte
 -- Model
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2189814010"] = "Model"
 
+-- You can also drag & drop the tokenizer file here.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2282234384"] = "You can also drag & drop the tokenizer file here."
+
 -- (Optional) API Key
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2331453405"] = "(Optional) API Key"
 
+-- Please drop a tokenizer file in the JSON format.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2331986401"] = "Please drop a tokenizer file in the JSON format."
+
 -- Failed to remove the API key from the operating system. The message was: {0}. Please try again.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2439094236"] = "Failed to remove the API key from the operating system. The message was: {0}. Please try again."