[conductor] Added a generic tooltip widget (#92187)

* Added a generic tooltip widget

* added the header

dev/conductor/ui/lib/widgets/common/tooltip.dart

@@ -0,0 +1,30 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+
+/// Displays detailed info message in a tooltip widget.
+class InfoTooltip extends StatelessWidget {
+  const InfoTooltip({
+    Key? key,
+    required this.tooltipName,
+    required this.tooltipMessage,
+  }) : super(key: key);
+
+  final String tooltipName;
+  final String tooltipMessage;
+
+  @override
+  Widget build(BuildContext context) {
+    return Tooltip(
+      padding: const EdgeInsets.all(10.0),
+      message: tooltipMessage,
+      child: Icon(
+        Icons.info,
+        size: 16.0,
+        key: Key('${tooltipName}Tooltip'),
+      ),
+    );
+  }
+}

dev/conductor/ui/lib/widgets/conductor_status.dart

@@ -6,6 +6,8 @@ import 'package:conductor_core/conductor_core.dart';
 import 'package:conductor_core/proto.dart' as pb;
 import 'package:flutter/material.dart';
 
+import 'common/tooltip.dart';
+
 /// Displays the current conductor state.
 class ConductorStatus extends StatefulWidget {
   const ConductorStatus({
@@ -142,44 +144,6 @@ class ConductorStatusState extends State<ConductorStatus> {
   }
 }
 
-/// Displays explanations for each status type as a tooltip.
-class StatusTooltip extends StatefulWidget {
-  const StatusTooltip({
-    Key? key,
-    this.engineOrFramework,
-  }) : super(key: key);
-
-  final String? engineOrFramework;
-
-  @override
-  State<StatusTooltip> createState() => _StatusTooltipState();
-}
-
-class _StatusTooltipState extends State<StatusTooltip> {
-  @override
-  Widget build(BuildContext context) {
-    return Row(
-      children: <Widget>[
-        const Text('Status'),
-        const SizedBox(width: 10.0),
-        Tooltip(
-          padding: const EdgeInsets.all(10.0),
-          message: '''
-PENDING: The cherrypick has not yet been applied.
-PENDING_WITH_CONFLICT: The cherrypick has not been applied and will require manual resolution.
-COMPLETED: The cherrypick has been successfully applied to the local checkout.
-ABANDONED: The cherrypick will NOT be applied in this release.''',
-          child: Icon(
-            Icons.info,
-            size: 16.0,
-            key: Key('${widget.engineOrFramework}ConductorStatusTooltip'),
-          ),
-        ),
-      ],
-    );
-  }
-}
-
 /// Widget for showing the engine and framework cherrypicks applied to the current release.
 ///
 /// Shows the cherrypicks' SHA and status in two separate table DataRow cells.
@@ -210,7 +174,22 @@ class CherrypickTableState extends State<CherrypickTable> {
       decoration: BoxDecoration(border: Border.all(color: Colors.grey)),
       columns: <DataColumn>[
         DataColumn(label: Text('${widget.engineOrFramework == 'engine' ? 'Engine' : 'Framework'} Cherrypicks')),
-        DataColumn(label: StatusTooltip(engineOrFramework: widget.engineOrFramework)),
+        DataColumn(
+          label: Row(
+            children: <Widget>[
+              const Text('Status'),
+              const SizedBox(width: 10.0),
+              InfoTooltip(
+                tooltipName: widget.engineOrFramework,
+                tooltipMessage: '''
+PENDING:   The cherrypick has not yet been applied.
+PENDING_WITH_CONFLICT:   The cherrypick has not been applied and will require manual resolution.
+COMPLETED:   The cherrypick has been successfully applied to the local checkout.
+ABANDONED:   The cherrypick will NOT be applied in this release.''',
+              ),
+            ],
+          ),
+        ),
       ],
       rows: cherrypicks.map((Map<String, String> cherrypick) {
         return DataRow(

dev/conductor/ui/lib/widgets/create_release_substeps.dart

@@ -4,6 +4,8 @@
 
 import 'package:flutter/material.dart';
 
+import 'common/tooltip.dart';
+
 /// Displays all substeps related to the 1st step.
 ///
 /// Uses input fields and dropdowns to capture all the parameters of the conductor start command.
@@ -162,6 +164,21 @@ class CheckboxListTileDropdown extends StatelessWidget {
           CreateReleaseSubsteps.substepTitles[index],
           style: Theme.of(context).textTheme.subtitle1!.copyWith(color: Colors.grey[700]),
         ),
+        // Only add a tooltip for the increment dropdown
+        if (index == 7)
+          const Padding(
+            padding: EdgeInsets.fromLTRB(10.0, 0, 0, 0),
+            child: InfoTooltip(
+              tooltipName: 'ReleaseIncrement',
+              // m: has one less space than the other lines, because otherwise,
+              // it would display on the app one more space than the other lines
+              tooltipMessage: '''
+m:   Indicates a standard dev release.
+n:    Indicates a hotfix to a dev or beta release.
+y:    Indicates the first dev release after a beta release.
+z:    Indicates a hotfix to a stable release.''',
+            ),
+          ),
         const SizedBox(width: 20.0),
         DropdownButton<String>(
           hint: const Text('-'), // Dropdown initially displays the hint when no option is selected.

dev/conductor/ui/test/widgets/common/tooltip_test.dart

@@ -0,0 +1,44 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:conductor_ui/widgets/common/tooltip.dart';
+import 'package:flutter/gestures.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('When the cursor hovers over the tooltip, it displays the message.', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      StatefulBuilder(
+        builder: (BuildContext context, StateSetter setState) {
+          return MaterialApp(
+            home: Material(
+              child: Column(
+                children: const <Widget>[
+                  InfoTooltip(tooltipName: 'tooltipTest', tooltipMessage: 'tooltipTestMessage'),
+                ],
+              ),
+            ),
+          );
+        },
+      ),
+    );
+
+    expect(find.byType(InfoTooltip), findsOneWidget);
+
+    final TestGesture gesture = await tester.createGesture(kind: PointerDeviceKind.mouse);
+    addTearDown(gesture.removePointer);
+    await gesture.addPointer(location: Offset.zero);
+
+    /// Tests if the tooltip is displaying the message upon cursor hovering.
+    ///
+    /// Before hovering, the message is not found.
+    /// When the cursor hovers over the icon, the message is displayed and found.
+    expect(find.textContaining('tooltipTestMessage'), findsNothing);
+    await tester.pump();
+    await gesture.moveTo(tester.getCenter(find.byKey(const Key('tooltipTestTooltip'))));
+    await tester.pumpAndSettle();
+    expect(find.textContaining('tooltipTestMessage'), findsOneWidget);
+  });
+}

dev/conductor/ui/test/widgets/conductor_status_test.dart

@@ -5,7 +5,6 @@
 import 'package:conductor_core/conductor_core.dart';
 import 'package:conductor_core/proto.dart' as pb;
 import 'package:conductor_ui/widgets/conductor_status.dart';
-import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
@@ -119,20 +118,6 @@ void main() {
       expect(find.text(engineCherrypick1), findsOneWidget);
       expect(find.text(engineCherrypick2), findsOneWidget);
       expect(find.text(frameworkCherrypick), findsOneWidget);
-
-      final TestGesture gesture = await tester.createGesture(kind: PointerDeviceKind.mouse);
-      addTearDown(gesture.removePointer);
-      await gesture.addPointer(location: Offset.zero);
-
-      /// Tests the tooltip is displaying status explanations upon cursor hovering.
-      ///
-      /// Before hovering, status explanations are not found.
-      /// When the cursor hovers over the info icon, the explanations are displayed and found.
-      expect(find.textContaining('PENDING: The cherrypick has not yet been applied.'), findsNothing);
-      await tester.pump();
-      await gesture.moveTo(tester.getCenter(find.byKey(const Key('engineConductorStatusTooltip'))));
-      await tester.pumpAndSettle();
-      expect(find.textContaining('PENDING: The cherrypick has not yet been applied.'), findsOneWidget);
     });
 
     testWidgets('Conductor_status displays correct status with a null state file except a releaseChannel',
@@ -166,20 +151,6 @@ void main() {
       }
       expect(find.text(releaseChannel), findsOneWidget);
       expect(find.text('Unknown'), findsNWidgets(11));
-
-      final TestGesture gesture = await tester.createGesture(kind: PointerDeviceKind.mouse);
-      addTearDown(gesture.removePointer);
-      await gesture.addPointer(location: Offset.zero);
-
-      /// Tests the tooltip is displaying status explanations upon cursor hovering.
-      ///
-      /// Before hovering, status explanations are not found.
-      /// When the cursor hovers over the info icon, the explanations are displayed and found.
-      expect(find.textContaining('PENDING: The cherrypick has not yet been applied.'), findsNothing);
-      await tester.pump();
-      await gesture.moveTo(tester.getCenter(find.byKey(const Key('engineConductorStatusTooltip'))));
-      await tester.pumpAndSettle();
-      expect(find.textContaining('PENDING: The cherrypick has not yet been applied.'), findsOneWidget);
     });
 
     testWidgets('Repo Info section displays corresponding info in a dropdown fashion', (WidgetTester tester) async {