fix: use getFlagCode for flag classname in combo

[elPeiretti]

fixes #9

Summary by CodeRabbit

• New Features
  • Improved flag icon representation in the LocaleComboBox by enhancing the logic for generating flag class names based on locale.
• Refactor
  • Abstracted flag code determination into a separate method for better maintainability and readability.

[coderabbitai]

Walkthrough

The changes made to the LocaleComboBox class primarily involve the modification of the setPrefixFlag method to improve how flag icon class names are generated. The new implementation utilizes a dedicated method, getFlagCode, to derive the flag code from the locale, enhancing the logic for flag representation.

Changes

Files	Change Summary
src/main/java/com/flowingcode/vaadin/addons/localecombobox/LocaleComboBox.java	Modified setPrefixFlag method to use getFlagCode(locale) for generating flag class names.

Assessment against linked issues

Objective	Addressed	Explanation
Flag rendering bug (Issue #9)	✅

Possibly related PRs

• Feature/custom locales #6: Introduces getFlagCode method, which is directly related to the changes in setPrefixFlag.
• Feature/optional flags #7: Modifies setPrefixFlag and introduces hasFlags, relevant to the flag handling changes.

Poem

In the land of flags so bright,
A rabbit hops with pure delight.
With getFlagCode, the flags align,
No more missing flags, all will shine!
Hooray for changes, let’s all cheer,
For every locale, the flags are here! 🐇✨

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Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between e24b044 and 8184b7e.

Files selected for processing (1)

• src/main/java/com/flowingcode/vaadin/addons/localecombobox/LocaleComboBox.java (1 hunks)

Additional comments not posted (1)

src/main/java/com/flowingcode/vaadin/addons/localecombobox/LocaleComboBox.java (1)

214-214: LGTM!

The code changes are approved for the following reasons:

• The change abstracts the logic for determining the flag icon's class names into a separate method getFlagCode, which improves maintainability and readability.
• The getFlagCode method uses the LocaleCountryConverter.convertToISO3166Code method to convert the country code to the ISO 3166 code and then converts it to lowercase. This ensures that the correct flag code is used for the flag icon's class names.
• The change is consistent with the rest of the codebase and follows the existing coding style and conventions.
• The change is well-documented in the AI-generated summary, which provides a clear explanation of the modification and its potential benefits.
• The change does not introduce any new issues or bugs.

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