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Overview

The Collaborative Whiteboard plugin handles messages of type extension_whiteboard in category custom. It renders a card with a whiteboard banner image, title, subtitle, and an “Open Whiteboard” button that launches the whiteboard in a new window.
Live Preview — interact with the collaborative whiteboard bubble.Open in Storybook ↗

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Bubble Rendering

  • Banner image — themed (light/dark) whiteboard illustration
  • Title — “Collaborative Whiteboard”
  • Subtitle — “Open whiteboard to draw together”
  • Button — “Open Whiteboard” — opens the board URL in a fullscreen popup window
  • Lazy-loaded — the bubble component is not included in the initial bundle
The whiteboard URL is extracted from the message’s extension metadata at @injected.extensions.whiteboard.board_url.

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Context Menu Options

Standard media options: React, Reply, Reply in Thread, Info, Delete, Report, Mark Unread, Message Privately.

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Conversation Preview

Returns: Collaborative Whiteboard (localized via conversation_subtitle_collaborative_whiteboard key)

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CSS Selectors