Add MediaProvider context and OutputModel widget #113
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Implement MediaProvider (Issue #91) - a React context for shared MIME rendering configuration. This closes the gap where widget outputs were in DEFAULT_PRIORITY but had no built-in handler in MediaRouter. With MediaProvider, applications can inject renderers once at the top of the tree (e.g., a widget renderer) and all nested MediaRouter instances inherit them automatically. OutputModel widget displays captured Jupyter outputs in the widget tree. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Demo creates OutputModel widgets with pumped-in Jupyter outputs: stream (stdout/stderr), rich HTML (DataFrame), error tracebacks, and mixed content (JSON + markdown). Also shows OutputWidget nested in a VBox layout. Includes controls to append/clear outputs. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
Implements MediaProvider context (Issue #91) and OutputModel widget to close the architectural gap where widget outputs are in
DEFAULT_PRIORITYbut have no built-in MediaRouter handler. MediaProvider lets applications configure MIME rendering once at the tree root and have all nested MediaRouter instances inherit it automatically. OutputModel displays captured Jupyter outputs in the widget tree.What's New
renderers,priority,unsafeconfiguration. Supports nesting with renderer merging.JupyterOutput[]via OutputArea. Inherits media config from MediaProvider automatically.Testing
pnpm types:check✓pnpm lint✓pnpm build✓🤖 Generated with Claude Code