fix(web): resolve drag and drop not working in month view

[JeanMeijer]

Description

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Type of Change

• Bug fix
• New feature
• Breaking change
• UI/UX update
• Docs update
• Refactor / Cleanup

Related Areas

• Authentication
• Calendar UI
• Data/API
• Docs

Testing

• Manual testing performed
• Cross-browser testing (if UI changes)
• Mobile responsiveness verified (if UI changes)

Checklist

• I’ve read the CONTRIBUTING guide
• My code works and is understandable and follows the project's style guidelines
• I have performed a self-review of my code
• I have commented my code, particularly in complex areas
• I have updated the documentation
• Any dependent changes are merged and published

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Summary by cubic

Fixes broken drag-and-drop in the Month view by adding a drag preview and correct pointer offset tracking, so events can be moved across days/weeks reliably.

• Bug Fixes
  • Added DragPreviewPortal and hid the original element while dragging for smooth visuals.
  • Tracked grab offsets relative to the event rect to keep the preview under the cursor.
  • Calculated positions using container and event bounds; updated preview x/y/size during drag.
  • Used useDraggingEventId to toggle drag state and moveEvent with proper column offsets.
  • Passed rows.total into ContainerProvider to align grid math and enable correct drops across rows.

^{Written for commit d57de6f. Summary will update on new commits.}

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Project	Deployment	Actions	Updated (UTC)
analog	Ready	Preview, Comment	Jul 25, 2026 9:11am

[cubic-dev-ai]

No issues found across 2 files

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