feat: Add useCarouselController
#447
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WalkthroughThe pull request introduces significant updates to the Flutter Hooks library, including enhancements to the README.md for clarity and organization, the addition of a Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant HookBuilder
participant useCarouselController
participant CarouselController
User->>HookBuilder: Use Hook
HookBuilder->>useCarouselController: Call with parameters
useCarouselController->>CarouselController: Create instance
CarouselController-->>useCarouselController: Return instance
useCarouselController-->>HookBuilder: Provide controller
HookBuilder->>User: Render UI
User->>HookBuilder: Unmount widget
HookBuilder->>useCarouselController: Dispose controller
useCarouselController->>CarouselController: Dispose instance
Poem
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Actionable comments posted: 1
🧹 Outside diff range and nitpick comments (5)
packages/flutter_hooks/lib/src/carousel_controller.dart (1)
32-46: The_CarouselControllerHookStateclass is well-implemented, with a minor suggestion.The class structure and method implementations are correct. The controller is properly initialized, built, and disposed. The debug label is appropriately set.
For consistency with other hooks in the library, consider making the
controllerfieldfinalinstead oflate final.Here's a suggested minor change:
- late final controller = CarouselController( + final controller = CarouselController(packages/flutter_hooks/test/carousel_controller_test.dart (3)
33-50: LGTM: Comprehensive comparison of initial valuesThe test case thoroughly compares the initial values of a
CarouselControllercreated byuseCarouselControllerwith one created directly. It checks all relevant properties, ensuring that the hook creates a controller with the same default values as the direct constructor.Consider using
expect(controller, equals(controller2))instead of comparing individual properties. This approach would be more concise and automatically cover any future properties added toCarouselController. IfCarouselControllerdoesn't override==, you might need to implement it first.
75-91: LGTM: Verifies parameter passing, but could be more comprehensiveThis test case correctly verifies that the
initialItemparameter passed touseCarouselControlleris properly applied to the createdCarouselController.Consider expanding this test to cover all possible parameters that can be passed to
useCarouselController. This would ensure that all parameters are correctly handled by the hook. For example:controller = useCarouselController( initialItem: 42, initialScrollOffset: 10.0, keepScrollOffset: false, // Add any other parameters that useCarouselController accepts ); expect(controller.initialItem, 42); expect(controller.initialScrollOffset, 10.0); expect(controller.keepScrollOffset, false); // Add expectations for any other parameters
93-114: LGTM: Correctly verifies disposal behaviorThis test case effectively demonstrates that the
CarouselControllercreated byuseCarouselControlleris properly disposed when the widget is unmounted. The error checking uses the appropriate matcher for a Flutter error.To make the test more robust, consider adding a positive check before disposal. For example:
// Before pumping the new widget expect(() => controller.addListener(() {}), doesNotThrow); // Then proceed with the existing test await tester.pumpWidget(Container()); // ... rest of the testThis addition would ensure that the controller is usable before disposal and becomes unusable after disposal, providing a more complete test of the lifecycle.
README.md (1)
361-361: LGTM! Consider adding a note about Flutter version compatibility.The addition of
useCarouselControlleris well-formatted and consistent with other entries in the table. It provides a clear description and a link to the documentation, which is excellent.Consider adding a note about the minimum Flutter version required for this hook, as mentioned in the PR description (Flutter 3.24 stable). This information could be valuable for users. For example:
-| [useCarouselController](https://pub.dev/documentation/flutter_hooks/latest/flutter_hooks/useCarouselController.html) | Creates and disposes a `CarouselController`. | +| [useCarouselController](https://pub.dev/documentation/flutter_hooks/latest/flutter_hooks/useCarouselController.html) | Creates and disposes a `CarouselController`. (Requires Flutter 3.24+) |
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📒 Files selected for processing (4)
- README.md (1 hunks)
- packages/flutter_hooks/lib/src/carousel_controller.dart (1 hunks)
- packages/flutter_hooks/lib/src/hooks.dart (2 hunks)
- packages/flutter_hooks/test/carousel_controller_test.dart (1 hunks)
🔇 Additional comments (10)
packages/flutter_hooks/lib/src/hooks.dart (4)
7-7: LGTM: CarouselController import added correctly.The addition of
CarouselControllerto the Material import is correct and necessary for implementing the newuseCarouselControllerhooks. This change aligns with the PR objectives.
21-21: LGTM: New part directive added for carousel_controller.dart.The addition of the part directive for
carousel_controller.dartis consistent with the existing structure of the file and indicates that the implementation of the new hooks is in a separate file. This approach maintains good code organization.
Line range hint
1-41: Overall assessment: Changes look good, pending verification.The changes to this file are minimal and well-integrated. They set up the necessary import and part directive for the new
useCarouselControllerhooks. The implementation details are not visible in this file, so we've requested verification of thecarousel_controller.dartfile. Once that's confirmed, these changes appear to be ready for approval.
21-21: Verify the implementation of useCarouselController hooks.The addition of the part directive for
carousel_controller.dartsuggests that the implementation of theuseCarouselControllerhooks is in this new file. To ensure completeness of the PR, we should verify the existence and content of this file.Run the following script to check for the new file and its content:
✅ Verification successful
Please run the following updated script to verify the
useCarouselControllerimplementation and check for any incomplete TODOs:
Verification Successful:
useCarouselControlleris properly implemented.
- The
carousel_controller.dartfile exists atpackages/flutter_hooks/lib/src/carousel_controller.dart.- The
useCarouselControllerhook is implemented within the file.- No TODO comments found, ensuring the implementation is complete.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the existence and content of carousel_controller.dart # Test 1: Check if the file exists if fd -t f carousel_controller.dart; then echo "carousel_controller.dart file found." else echo "Error: carousel_controller.dart file not found." exit 1 fi # Test 2: Check for the implementation of useCarouselController if rg -q "useCarouselController" carousel_controller.dart; then echo "useCarouselController implementation found in carousel_controller.dart" else echo "Warning: useCarouselController implementation not found in carousel_controller.dart" fi # Test 3: Check for any TODO comments that might indicate incomplete implementation if rg -q "TODO" carousel_controller.dart; then echo "Warning: TODO comments found in carousel_controller.dart. Implementation might be incomplete." fiLength of output: 573
Script:
#!/bin/bash # Description: Verify the existence and content of carousel_controller.dart FILE_PATH="packages/flutter_hooks/lib/src/carousel_controller.dart" # Test 1: Check if the file exists if fd -t f carousel_controller.dart; then echo "carousel_controller.dart file found at $FILE_PATH." else echo "Error: carousel_controller.dart file not found." exit 1 fi # Test 2: Check for the implementation of useCarouselController if rg -q "useCarouselController" "$FILE_PATH"; then echo "useCarouselController implementation found in carousel_controller.dart." else echo "Warning: useCarouselController implementation not found in carousel_controller.dart." fi # Test 3: Check for any TODO comments that might indicate incomplete implementation if rg -q "TODO" "$FILE_PATH"; then echo "Warning: TODO comments found in carousel_controller.dart. Implementation might be incomplete." fiLength of output: 667
packages/flutter_hooks/lib/src/carousel_controller.dart (3)
3-17: LGTM! TheuseCarouselControllerfunction is well-implemented.The function signature, documentation, and implementation are all appropriate. It correctly uses the
usefunction to create a hook, and the parameters are handled properly.
19-30: The_CarouselControllerHookclass is correctly implemented.The class structure follows the appropriate pattern for creating a custom hook. The constructor parameters are handled correctly, and the
createStatemethod is properly overridden.
1-46: Overall, the implementation ofuseCarouselControlleris excellent.The new hook is well-structured, follows the established patterns in the library, and fulfills the PR objective. It provides a clean and efficient way to manage
CarouselControllerinstances in Flutter applications using hooks.A few points to highlight:
- The implementation is consistent with other hooks in the library.
- Proper disposal of the controller is ensured.
- The code is well-documented and includes appropriate debug labels.
Great job on this addition to the flutter_hooks package!
packages/flutter_hooks/test/carousel_controller_test.dart (3)
10-30: LGTM: 'debugFillProperties' test case is well-implementedThe test case correctly verifies the diagnostic output of the
useCarouselControllerhook. It properly usesHookBuilderto create a widget that uses the hook and checks the string representation of the diagnostics tree. The expected output string includes the correct class name and a "no clients" message, which is appropriate for a newly created controller.
52-73: LGTM: Correctly verifies hook consistency across rebuildsThis test case effectively demonstrates that
useCarouselControllerreturns the sameCarouselControllerinstance across widget rebuilds. The use ofidenticalto check for instance equality is the correct approach. This test is crucial for ensuring the hook behaves as expected in terms of state preservation.
1-115: Overall: Well-structured and comprehensive test suite foruseCarouselControllerThe test file provides a thorough examination of the
useCarouselControllerhook's functionality. It covers all major aspects including initialization, consistency across rebuilds, parameter passing, and proper disposal. The tests are well-organized and use appropriate Flutter testing patterns.Some minor suggestions for improvement have been made in individual comments, mainly focusing on:
- Verifying the necessity of the 'mock.dart' import
- Expanding the parameter passing test to cover all possible parameters
- Adding a positive check in the disposal test for more complete lifecycle coverage
These improvements would further enhance the already solid test suite, ensuring even more robust coverage of the
useCarouselControllerhook's behavior.
| import 'package:flutter/foundation.dart'; | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:flutter_hooks/src/framework.dart'; | ||
| import 'package:flutter_hooks/src/hooks.dart'; | ||
| import 'package:flutter_test/flutter_test.dart'; | ||
|
|
||
| import 'mock.dart'; |
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💡 Codebase verification
Remove unnecessary import of 'mock.dart'
The import of 'mock.dart' is not used in the file and can be safely removed.
🔗 Analysis chain
Verify the usage of 'mock.dart'
The file imports 'mock.dart', but it doesn't appear to be used in the visible code. Please ensure that this import is necessary for the tests.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check if 'mock.dart' is used in the file
# Test: Search for usage of any identifier from 'mock.dart'
rg --type dart -i '\bmock\b' packages/flutter_hooks/test/carousel_controller_test.dart
# If no results, the import might be unnecessary
Length of output: 108
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Do you mind fixing the CI? |
Thank you for your confirmation! |
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I was asking you to do it :) |
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Oh, my translation was wrong:( |
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@rrousselGit |
Thanks for the great package!
I have added CarouselController hooks for use with CarouselView, now available in Flutter 3.24 (stable)!
Implementation and testing was based on usePageController and useSearchController.
Please let me know if anything is missing.
Summary by CodeRabbit
New Features
useCarouselControllerhook for managing carousel functionality, simplifying state management.Bug Fixes
Tests
useCarouselControllerhook, validating its functionality and resource management.