Add a filter setting to filter by a minimum log level (#8433)

packages/devtools_app/lib/src/screens/logging/logging_controller.dart

@@ -122,6 +122,17 @@ class LoggingController extends DisposableController
 
   @visibleForTesting
   static final settingFilters = <SettingFilter<LogData, Object>>[
+    SettingFilter<LogData, Level>(
+      name: 'Hide logs below the minimum log level',
+      includeCallback: (LogData element, Level currentFilterValue) =>
+          element.level >= currentFilterValue.value,
+      enabledCallback: (Level filterValue) => filterValue >= Level.FINEST,
+      possibleValues: Level.LEVELS
+          // Omit Level.OFF and Level.ALL from the possible minimum levels.
+          .where((level) => level != Level.OFF && level != Level.ALL)
+          .toList(),
+      defaultValue: Level.INFO,
+    ),
     if (serviceConnection.serviceManager.connectedApp?.isFlutterAppNow ??
         true) ...[
       ToggleFilter<LogData>(

packages/devtools_app/lib/src/shared/ui/filter.dart

@@ -221,10 +221,9 @@ class _FilterDialogState<T> extends State<FilterDialog<T>>
           ],
           for (final filter in widget.controller._settingFilters) ...[
             if (filter is ToggleFilter<T>)
-              ToggleFilterElement(filter: filter)
+              _ToggleFilterElement(filter: filter)
             else
-              // TODO(kenz): add a SettingFilterElement widget.
-              const SizedBox.shrink(),
+              _SettingFilterElement(filter: filter),
           ],
         ],
       ),
@@ -255,8 +254,8 @@ class _FilterDialogState<T> extends State<FilterDialog<T>>
   }
 }
 
-class ToggleFilterElement extends StatelessWidget {
-  const ToggleFilterElement({super.key, required this.filter});
+class _ToggleFilterElement extends StatelessWidget {
+  const _ToggleFilterElement({required this.filter});
 
   final ToggleFilter filter;
 
@@ -281,6 +280,53 @@ class ToggleFilterElement extends StatelessWidget {
   }
 }
 
+class _SettingFilterElement extends StatelessWidget {
+  const _SettingFilterElement({required this.filter});
+
+  final SettingFilter filter;
+
+  static const _leadingInset = 6.0;
+
+  @override
+  Widget build(BuildContext context) {
+    Widget content = Padding(
+      // This padding is required to left-align [_SettingFilterElement]s with
+      // [_ToggleFilterElement] checkboxes in the dialog.
+      padding: const EdgeInsets.only(left: _leadingInset),
+      child: Row(
+        children: [
+          Text(filter.name),
+          const BulletSpacer(),
+          ValueListenableBuilder(
+            valueListenable: filter.setting,
+            builder: (context, value, _) {
+              return RoundedDropDownButton(
+                value: value,
+                items: filter.possibleValues
+                    .map(
+                      (value) => DropdownMenuItem(
+                        value: value,
+                        child: Text('$value'),
+                      ),
+                    )
+                    .toList(),
+                onChanged: (value) => filter.setting.value = value!,
+              );
+            },
+          ),
+        ],
+      ),
+    );
+    if (filter.tooltip != null) {
+      content = DevToolsTooltip(
+        message: filter.tooltip,
+        child: content,
+      );
+    }
+    return content;
+  }
+}
+
 class Filter<T> {
   Filter({required this.queryFilter, required this.settingFilters});
 

packages/devtools_app/release_notes/NEXT_RELEASE_NOTES.md

@@ -49,6 +49,9 @@ severity. [#8419](https://github.com/flutter/devtools/pull/8419)
 [#8427](https://github.com/flutter/devtools/pull/8427)
     ![Logging filter](images/log_filter.png "Logging filter")
 
+* Added support for filtering by log severity / levels. - []()
+    ![Log level filter](images/log_level_filter.png "Log level filter")
+
 * Fix a bug where logs would get out of order after midnight. - 
 [#8420](https://github.com/flutter/devtools/pull/8420)
 

packages/devtools_app/test/logging/logging_controller_test.dart

@@ -14,6 +14,7 @@ import 'package:devtools_app_shared/utils.dart';
 import 'package:devtools_test/devtools_test.dart';
 import 'package:devtools_test/helpers.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:logging/logging.dart';
 
 void main() {
   group('LoggingController', () {
@@ -27,6 +28,7 @@ void main() {
           jsonEncode({'kind': 'stdout', 'message': message}),
           0,
           summary: message,
+          level: Level.INFO.value,
         ),
       );
     }
@@ -38,12 +40,21 @@ void main() {
           jsonEncode({'kind': 'gc', 'message': message}),
           0,
           summary: message,
+          level: Level.INFO.value,
         ),
       );
     }
 
-    void addLogWithKind(String kind) {
-      controller.log(LogData(kind, jsonEncode({'foo': 'test_data'}), 0));
+    void addLog({required String kind, Level? level, bool isError = false}) {
+      controller.log(
+        LogData(
+          kind,
+          jsonEncode({'foo': 'test_data'}),
+          0,
+          level: level?.value,
+          isError: isError,
+        ),
+      );
     }
 
     setUp(() {
@@ -88,8 +99,8 @@ void main() {
       addStdoutData('abc');
       addStdoutData('def');
       addStdoutData('abc ghi');
-      addLogWithKind('Flutter.Navigation');
-      addLogWithKind('Flutter.Error');
+      addLog(kind: 'Flutter.Navigation');
+      addLog(kind: 'Flutter.Error', isError: true);
       addGcData('gc1');
       addGcData('gc2');
 
@@ -112,8 +123,8 @@ void main() {
       addStdoutData('abc');
       addStdoutData('def');
       addStdoutData('abc ghi');
-      addLogWithKind('Flutter.Navigation');
-      addLogWithKind('Flutter.Error');
+      addLog(kind: 'Flutter.Navigation');
+      addLog(kind: 'Flutter.Error', isError: true);
       addGcData('gc1');
       addGcData('gc2');
 
@@ -133,24 +144,27 @@ void main() {
       addStdoutData('abc');
       addStdoutData('def');
       addStdoutData('abc ghi');
-      addLogWithKind('Flutter.Navigation');
-      addLogWithKind('Flutter.Error');
+      addLog(kind: 'Flutter.Navigation');
+      addLog(kind: 'Flutter.Error', isError: true);
 
       // The following logs should all be filtered by default.
       addGcData('gc1');
       addGcData('gc2');
-      addLogWithKind('Flutter.FirstFrame');
-      addLogWithKind('Flutter.FrameworkInitialization');
-      addLogWithKind('Flutter.Frame');
-      addLogWithKind('Flutter.ImageSizesForFrame');
-      addLogWithKind('Flutter.ServiceExtensionStateChanged');
+      addLog(kind: 'Flutter.FirstFrame');
+      addLog(kind: 'Flutter.FrameworkInitialization');
+      addLog(kind: 'Flutter.Frame');
+      addLog(kind: 'Flutter.ImageSizesForFrame');
+      addLog(kind: 'Flutter.ServiceExtensionStateChanged');
 
       // At this point data is filtered by the default toggle filter values.
       expect(controller.data, hasLength(12));
       expect(controller.filteredData.value, hasLength(5));
 
-      // Test query filters assuming default toggle filters are all enabled.
-      for (final filter in controller.activeFilter.value.settingFilters) {
+      // Test query filters assuming default setting filters are all enabled.
+      controller.activeFilter.value.settingFilters.first.setting.value =
+          Level.INFO;
+      for (final filter
+          in controller.activeFilter.value.settingFilters.sublist(1)) {
         filter.setting.value = true;
       }
 
@@ -186,12 +200,14 @@ void main() {
       expect(controller.data, hasLength(12));
       expect(controller.filteredData.value, hasLength(5));
 
-      // Test toggle filters.
-      final verboseFlutterFrameworkFilter =
+      // Test setting filters.
+      final minimumLogLevelFilter =
           controller.activeFilter.value.settingFilters[0];
-      final verboseFlutterServiceFilter =
+      final verboseFlutterFrameworkFilter =
           controller.activeFilter.value.settingFilters[1];
-      final gcFilter = controller.activeFilter.value.settingFilters[2];
+      final verboseFlutterServiceFilter =
+          controller.activeFilter.value.settingFilters[2];
+      final gcFilter = controller.activeFilter.value.settingFilters[3];
 
       verboseFlutterFrameworkFilter.setting.value = false;
       controller.setActiveFilter();
@@ -207,6 +223,11 @@ void main() {
       controller.setActiveFilter();
       expect(controller.data, hasLength(12));
       expect(controller.filteredData.value, hasLength(12));
+
+      minimumLogLevelFilter.setting.value = Level.SEVERE;
+      controller.setActiveFilter();
+      expect(controller.data, hasLength(12));
+      expect(controller.filteredData.value, hasLength(1));
     });
   });