Improve state management #6
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Improve content state management by adding a state change listener and storing the state as an internal variable Fixes #4
WalkthroughThe changes in this pull request primarily involve updates to the project's versioning and enhancements to the Markdown component classes. The Changes
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (6)
src/test/java/com/flowingcode/vaadin/addons/markdown/MarkdownEditorDemo.java (3)
64-64: LGTM: Good addition for demonstrating content retrieval.The new button effectively demonstrates how to retrieve content from the MarkdownEditor. It's a useful feature for the demo.
Consider adding a more descriptive message to the notification, e.g.:
Button getContentButton = new Button("Show content", ev -> Notification.show("Current Markdown content:\n" + mde.getContent()) );This would provide more context in the notification and improve the user experience.
65-92: LGTM: Excellent addition for demonstrating content setting.The new button effectively demonstrates how to set content in the MarkdownEditor. The sample content covers a good range of Markdown features, which is great for demonstration purposes.
Consider the following improvements:
- Extract the sample content to a separate constant or method to improve readability and maintainability:
private static final String SAMPLE_CONTENT = """ # Markdown Editor Demo ... ~~This is strikethrough text~~ """; Button setSampleContent = new Button("Set sample content", ev -> mde.setContent(SAMPLE_CONTENT));
- Consider shortening the sample content slightly to make the demo quicker and more focused.
- Add a comment explaining the purpose of this button for future maintainers.
93-93: LGTM: Improved layout organization.The new layout effectively groups the control buttons and ComboBox together in a HorizontalLayout, which improves the UI organization.
Consider extracting the HorizontalLayout creation to a separate method for better readability:
private HorizontalLayout createControlsLayout(Button getContentButton, Button setSampleContent) { return new HorizontalLayout(cb, getContentButton, setSampleContent); } // In the constructor add(mde, createControlsLayout(getContentButton, setSampleContent));This would make the main constructor less cluttered and improve the overall structure of the class.
src/main/java/com/flowingcode/vaadin/addons/markdown/BaseMarkdownComponent.java (3)
51-52: LGTM: New field added for improved state management.The addition of the
contentfield aligns with the PR objective of improving state management. It allows for direct storage of the content within the component.Consider adding a Javadoc comment for the
contentfield to describe its purpose and usage:/** Stores the current content of the Markdown component. */ private String content;
82-89: LGTM: New method added for external content change listening.The
addContentChangeListenermethod is a valuable addition that allows external components to react to content changes. It's well-documented and uses appropriate types.Consider adding a
@returntag to the Javadoc to indicate that the method doesn't return a value:/** * Adds the specified listener for the content change event. * * @param listener the listener callback for receiving content changes * @return void */ public void addContentChangeListener(SerializableConsumer<String> listener) { addStateChangeListener("content", String.class, listener); }
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1-114: Overall assessment: Improved state management and external integration.The changes to
BaseMarkdownComponentconsistently enhance state management and provide better integration capabilities:
- The new
contentfield allows for direct content storage.- The constructor modification ensures synchronization between the field and component state.
- The
addContentChangeListenermethod enables external components to react to content changes.These improvements align well with the PR objective of improving state management. The changes are well-structured and maintain good coding practices.
Consider adding a method to remove content change listeners in the future, which would provide more flexibility in managing external listeners.
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📒 Files selected for processing (4)
- pom.xml (1 hunks)
- src/main/java/com/flowingcode/vaadin/addons/markdown/BaseMarkdownComponent.java (4 hunks)
- src/main/java/com/flowingcode/vaadin/addons/markdown/MarkdownEditor.java (1 hunks)
- src/test/java/com/flowingcode/vaadin/addons/markdown/MarkdownEditorDemo.java (2 hunks)
✅ Files skipped from review due to trivial changes (1)
- pom.xml
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🔇 Additional comments (5)
src/main/java/com/flowingcode/vaadin/addons/markdown/MarkdownEditor.java (1)
40-40: Approve the change with a suggestion for documentation update.The change from
super(null)tosuper("")is a good practice as it avoids potential null pointer exceptions and provides a consistent initial state. This change aligns with best practices in Java development.However, it's important to ensure that this change is reflected in the class documentation and any relevant test cases.
Consider updating the class-level or constructor-level documentation to reflect that the editor is now initialized with an empty string rather than null.
Let's verify if there are any test cases or documentation that need to be updated:
src/test/java/com/flowingcode/vaadin/addons/markdown/MarkdownEditorDemo.java (2)
24-27: LGTM: New imports are appropriate for the added functionality.The new imports for
Button,Notification, andHorizontalLayoutare correctly added and align with the new UI components and functionality introduced in this update.
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1-93: Overall, excellent improvements to the MarkdownEditorDemo.The changes significantly enhance the demo's interactivity and showcase more features of the MarkdownEditor. The new buttons for showing and setting content provide valuable demonstrations of the editor's capabilities. The code is well-structured and follows good practices.
While there are some minor suggestions for improvement (such as extracting constants and methods), these are not critical and can be addressed in future refinements. The changes align well with the PR objective of improving state management by demonstrating how to interact with the editor's content.
Great work on these enhancements!
src/main/java/com/flowingcode/vaadin/addons/markdown/BaseMarkdownComponent.java (2)
26-26: LGTM: Import statement added correctly.The import for
SerializableConsumeris necessary for the newaddContentChangeListenermethod and is correctly placed with other imports.
60-60: LGTM: Constructor updated to maintain content synchronization.The addition of the content change listener in the constructor ensures that the
contentfield is always synchronized with the component's state. This change is consistent with the improved state management approach.
Summary by CodeRabbit
New Features
Bug Fixes