
Mathis Rouillard modernized the LayerSwitcher component in the IGNF/geopf-extensions-openlayers repository, focusing on DSFR design system integration and enhanced accessibility. He reworked the UI using JavaScript, HTML, and CSS, introducing new header controls, updated styling, and sample HTML improvements. Mathis added key-based pre-configured buttons and advanced customization options, enabling more flexible layer management. He implemented a layer locking feature with a dedicated UI, improved selection states, and made drag-and-drop interactions accessible with keyboard focus rules. By adding ARIA and data attributes to header buttons, he strengthened accessibility and analytics integration, resulting in a more maintainable, user-friendly front-end component.

Monthly summary for 2025-09 (repository: IGNF/geopf-extensions-openlayers). Delivered a major LayerSwitcher refresh aligned with the DSFR design system, expanding configurability, accessibility, and maintainability of layer controls. Implemented UI modernization with new header controls, styling updates, and sample HTML adjustments; introduced key-based pre-configured buttons and advanced customization options; added layer locking with a dedicated UI to illustrate lock interactions; improved layer selection and accessible drag-and-drop, with keyboard focus rules. Enhanced header button accessibility via additional attributes (IDs, ARIA/data-action) for better integration and analytics readiness. These changes increase user productivity, reduce misconfiguration risk, and simplify future enhancements while strengthening accessibility and alignment with design system standards.
Monthly summary for 2025-09 (repository: IGNF/geopf-extensions-openlayers). Delivered a major LayerSwitcher refresh aligned with the DSFR design system, expanding configurability, accessibility, and maintainability of layer controls. Implemented UI modernization with new header controls, styling updates, and sample HTML adjustments; introduced key-based pre-configured buttons and advanced customization options; added layer locking with a dedicated UI to illustrate lock interactions; improved layer selection and accessible drag-and-drop, with keyboard focus rules. Enhanced header button accessibility via additional attributes (IDs, ARIA/data-action) for better integration and analytics readiness. These changes increase user productivity, reduce misconfiguration risk, and simplify future enhancements while strengthening accessibility and alignment with design system standards.
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