Indicate which language is selected in the databases view

extensions/ql-vscode/package.json

@@ -757,38 +757,74 @@
         "command": "codeQLDatabases.displayAllLanguages",
         "title": "All languages"
       },
+      {
+        "command": "codeQLDatabases.displayAllLanguagesSelected",
+        "title": "All languages (selected)"
+      },
       {
         "command": "codeQLDatabases.displayCpp",
         "title": "C/C++"
       },
+      {
+        "command": "codeQLDatabases.displayCppSelected",
+        "title": "C/C++ (selected)"
+      },
       {
         "command": "codeQLDatabases.displayCsharp",
         "title": "C#"
       },
+      {
+        "command": "codeQLDatabases.displayCsharpSelected",
+        "title": "C# (selected)"
+      },
       {
         "command": "codeQLDatabases.displayGo",
         "title": "Go"
       },
+      {
+        "command": "codeQLDatabases.displayGoSelected",
+        "title": "Go (selected)"
+      },
       {
         "command": "codeQLDatabases.displayJava",
         "title": "Java/Kotlin"
       },
+      {
+        "command": "codeQLDatabases.displayJavaSelected",
+        "title": "Java/Kotlin (selected)"
+      },
       {
         "command": "codeQLDatabases.displayJavascript",
         "title": "JavaScript/TypeScript"
       },
+      {
+        "command": "codeQLDatabases.displayJavascriptSelected",
+        "title": "JavaScript/TypeScript (selected)"
+      },
       {
         "command": "codeQLDatabases.displayPython",
         "title": "Python"
       },
+      {
+        "command": "codeQLDatabases.displayPythonSelected",
+        "title": "Python (selected)"
+      },
       {
         "command": "codeQLDatabases.displayRuby",
         "title": "Ruby"
       },
+      {
+        "command": "codeQLDatabases.displayRubySelected",
+        "title": "Ruby (selected)"
+      },
       {
         "command": "codeQLDatabases.displaySwift",
         "title": "Swift"
       },
+      {
+        "command": "codeQLDatabases.displaySwiftSelected",
+        "title": "Swift (selected)"
+      },
       {
         "command": "codeQL.chooseDatabaseFolder",
         "title": "CodeQL: Choose Database from Folder"
@@ -1568,38 +1604,74 @@
           "command": "codeQLDatabases.displayAllLanguages",
           "when": "false"
         },
+        {
+          "command": "codeQLDatabases.displayAllLanguagesSelected",
+          "when": "false"
+        },
         {
           "command": "codeQLDatabases.displayCpp",
           "when": "false"
         },
+        {
+          "command": "codeQLDatabases.displayCppSelected",
+          "when": "false"
+        },
         {
           "command": "codeQLDatabases.displayCsharp",
           "when": "false"
         },
+        {
+          "command": "codeQLDatabases.displayCsharpSelected",
+          "when": "false"
+        },
         {
           "command": "codeQLDatabases.displayGo",
           "when": "false"
         },
+        {
+          "command": "codeQLDatabases.displayGoSelected",
+          "when": "false"
+        },
         {
           "command": "codeQLDatabases.displayJava",
           "when": "false"
         },
+        {
+          "command": "codeQLDatabases.displayJavaSelected",
+          "when": "false"
+        },
         {
           "command": "codeQLDatabases.displayJavascript",
           "when": "false"
         },
+        {
+          "command": "codeQLDatabases.displayJavascriptSelected",
+          "when": "false"
+        },
         {
           "command": "codeQLDatabases.displayPython",
           "when": "false"
         },
+        {
+          "command": "codeQLDatabases.displayPythonSelected",
+          "when": "false"
+        },
         {
           "command": "codeQLDatabases.displayRuby",
           "when": "false"
         },
+        {
+          "command": "codeQLDatabases.displayRubySelected",
+          "when": "false"
+        },
         {
           "command": "codeQLDatabases.displaySwift",
           "when": "false"
         },
+        {
+          "command": "codeQLDatabases.displaySwiftSelected",
+          "when": "false"
+        },
         {
           "command": "codeQLQueryHistory.openQueryContextMenu",
           "when": "false"
@@ -1797,31 +1869,76 @@
       ],
       "codeQLDatabases.languages": [
         {
-          "command": "codeQLDatabases.displayAllLanguages"
+          "command": "codeQLDatabases.displayAllLanguages",
+          "when": "codeQLDatabases.languageFilter != All"
+        },
+        {
+          "command": "codeQLDatabases.displayAllLanguagesSelected",
+          "when": "codeQLDatabases.languageFilter == All"
+        },
+        {
+          "command": "codeQLDatabases.displayCpp",
+          "when": "codeQLDatabases.languageFilter != cpp"
+        },
+        {
+          "command": "codeQLDatabases.displayCppSelected",
+          "when": "codeQLDatabases.languageFilter == cpp"
+        },
+        {
+          "command": "codeQLDatabases.displayCsharp",
+          "when": "codeQLDatabases.languageFilter != csharp"
+        },
+        {
+          "command": "codeQLDatabases.displayCsharpSelected",
+          "when": "codeQLDatabases.languageFilter == csharp"
+        },
+        {
+          "command": "codeQLDatabases.displayGo",
+          "when": "codeQLDatabases.languageFilter != go"
+        },
+        {
+          "command": "codeQLDatabases.displayGoSelected",
+          "when": "codeQLDatabases.languageFilter == go"
         },
         {
-          "command": "codeQLDatabases.displayCpp"
+          "command": "codeQLDatabases.displayJava",
+          "when": "codeQLDatabases.languageFilter != java"
         },
         {
-          "command": "codeQLDatabases.displayCsharp"
+          "command": "codeQLDatabases.displayJavaSelected",
+          "when": "codeQLDatabases.languageFilter == java"
         },
         {
-          "command": "codeQLDatabases.displayGo"
+          "command": "codeQLDatabases.displayJavascript",
+          "when": "codeQLDatabases.languageFilter != javascript"
         },
         {
-          "command": "codeQLDatabases.displayJava"
+          "command": "codeQLDatabases.displayJavascriptSelected",
+          "when": "codeQLDatabases.languageFilter == javascript"
         },
         {
-          "command": "codeQLDatabases.displayJavascript"
+          "command": "codeQLDatabases.displayPython",
+          "when": "codeQLDatabases.languageFilter != python"
         },
         {
-          "command": "codeQLDatabases.displayPython"
+          "command": "codeQLDatabases.displayPythonSelected",
+          "when": "codeQLDatabases.languageFilter == python"
         },
         {
-          "command": "codeQLDatabases.displayRuby"
+          "command": "codeQLDatabases.displayRuby",
+          "when": "codeQLDatabases.languageFilter != ruby"
+        },
+        {
+          "command": "codeQLDatabases.displayRubySelected",
+          "when": "codeQLDatabases.languageFilter == ruby"
+        },
+        {
+          "command": "codeQLDatabases.displaySwift",
+          "when": "codeQLDatabases.languageFilter != swift"
         },
         {
-          "command": "codeQLDatabases.displaySwift"
+          "command": "codeQLDatabases.displaySwiftSelected",
+          "when": "codeQLDatabases.languageFilter == swift"
         }
       ]
     },

extensions/ql-vscode/src/common/commands.ts

@@ -228,6 +228,15 @@ export type LocalDatabasesCommands = {
   "codeQLDatabases.displayPython": () => Promise<void>;
   "codeQLDatabases.displayRuby": () => Promise<void>;
   "codeQLDatabases.displaySwift": () => Promise<void>;
+  "codeQLDatabases.displayAllLanguagesSelected": () => Promise<void>;
+  "codeQLDatabases.displayCppSelected": () => Promise<void>;
+  "codeQLDatabases.displayCsharpSelected": () => Promise<void>;
+  "codeQLDatabases.displayGoSelected": () => Promise<void>;
+  "codeQLDatabases.displayJavaSelected": () => Promise<void>;
+  "codeQLDatabases.displayJavascriptSelected": () => Promise<void>;
+  "codeQLDatabases.displayPythonSelected": () => Promise<void>;
+  "codeQLDatabases.displayRubySelected": () => Promise<void>;
+  "codeQLDatabases.displaySwiftSelected": () => Promise<void>;
 
   // Database panel context menu
   "codeQLDatabases.setCurrentDatabase": (

extensions/ql-vscode/src/databases/local-databases-ui.ts

@@ -302,6 +302,26 @@ export class DatabaseUI extends DisposableObject {
         this,
         QueryLanguage.Swift,
       ),
+      "codeQLDatabases.displayAllLanguagesSelected":
+        this.handleChangeLanguageFilter.bind(this, "All"),
+      "codeQLDatabases.displayCppSelected":
+        this.handleChangeLanguageFilter.bind(this, QueryLanguage.Cpp),
+      "codeQLDatabases.displayCsharpSelected":
+        this.handleChangeLanguageFilter.bind(this, QueryLanguage.CSharp),
+      "codeQLDatabases.displayGoSelected": this.handleChangeLanguageFilter.bind(
+        this,
+        QueryLanguage.Go,
+      ),
+      "codeQLDatabases.displayJavaSelected":
+        this.handleChangeLanguageFilter.bind(this, QueryLanguage.Java),
+      "codeQLDatabases.displayJavascriptSelected":
+        this.handleChangeLanguageFilter.bind(this, QueryLanguage.Javascript),
+      "codeQLDatabases.displayPythonSelected":
+        this.handleChangeLanguageFilter.bind(this, QueryLanguage.Python),
+      "codeQLDatabases.displayRubySelected":
+        this.handleChangeLanguageFilter.bind(this, QueryLanguage.Ruby),
+      "codeQLDatabases.displaySwiftSelected":
+        this.handleChangeLanguageFilter.bind(this, QueryLanguage.Swift),
       "codeQLDatabases.removeDatabase": createMultiSelectionCommand(
         this.handleRemoveDatabase.bind(this),
       ),
@@ -594,6 +614,11 @@ export class DatabaseUI extends DisposableObject {
 
   private async handleChangeLanguageFilter(languageFilter: LanguageFilter) {
     this.treeDataProvider.languageFilter = languageFilter;
+    await this.app.commands.execute(
+      "setContext",
+      "codeQLDatabases.languageFilter",
+      languageFilter,
+    );
   }
 
   private async handleUpgradeCurrentDatabase(): Promise<void> {