Vue 3 Wrapper Development

Package location

wrappers/vue3/

Components

• HotTable.vue - the main Single-File Component. Creates the Handsontable instance on mount and tears it down on unmount.
• HotColumn.vue - child component for declarative per-column configuration.

Architecture

Components use defineComponent with propFactory('HotTable') to auto-generate prop definitions matching every Handsontable option.

Deep watchers (watch with deep: true) monitor prop changes. When a change is detected, the watcher calls updateSettings() on the Handsontable instance with the new values.

prepareSettings() is a helper that transforms Vue component props into a plain Handsontable settings object, filtering out Vue-specific properties.

Parent-child communication uses Vue's provide() / inject() pattern. The HotTable component provides its settings and instance reference so HotColumn children can register their column configurations.

Data handling: Data is synced by reference, not deep-copied. Mutations to the original data array are reflected in the grid without extra work. Avoid replacing the data array reference unless you intend a full reload.

Build and test

• Build system: Rollup 4.
• Tests: Jest with @vue/test-utils.
• Run tests: npm run test --prefix wrappers/vue3
• Important: Build core first with npm run build --prefix handsontable. Wrappers consume handsontable/tmp/, not dist/.

Key files

File	Purpose
src/HotTable.vue	Main grid component
src/HotColumn.vue	Per-column configuration component
src/helpers.ts	Settings preparation and utility functions
src/types.ts	TypeScript type definitions

Rules

• No business logic in wrappers. All data transformation and validation belongs in handsontable/src/.
• Cross-platform npm scripts: use Node.js .mjs helpers instead of bash-only constructs.