jupyter-next

Open and edit Jupyter notebooks in Pulsar.

Features

• Notebook editing: Open and edit .ipynb files with a cell-based interface.
• Stored output rendering: Existing notebook outputs are displayed from notebook JSON.
• Markdown support: Markdown cells render in command mode.
• Cell operations: Insert, delete, move, merge, cut, copy, paste, duplicate, and change cell type.
• Cell type selector: Switch active cell type via the toolbar dropdown or mouse wheel scroll over the selector.
• Multi-select cells: Ctrl+click to toggle, Shift+click for range selection, Shift+Up/Down to grow the selection from an anchor cell.
• Drag & drop: Reorder cells by dragging with auto-scroll near edges.
• Undo/redo: Buffer-based notebook edit history for cell text and notebook operations.
• Open source: Open .ipynb files as plain JSON text from an active notebook or tree-view.
• Dual mode: Command mode for navigation, edit mode for typing.
• Hydrogen execution: Run cells with hydrogen-next via the hydrogen-adapter service. Run/interrupt/restart/shutdown buttons appear in the toolbar; each code cell shows a per-cell Run button.
• Execution status: Running cells pulse a warning border and show a marching diagonal hatch on the gutter. The execution count switches to [*] while running. Each cell's gutter shows the last completed run duration.
• Output protection: Output images cannot be dragged out of the notebook.
• Linting support: Code cells are exposed through a backing .ipynb editor for linter integrations.
• Navigation panel: Markdown headings are exposed through the navigation adapter.
• Scrollmap markers: Markdown headings, selected or active cells, and linter messages appear on the notebook scrollbar when scrollmap is installed. Linter ticks render in the left lane and are color-coded by severity.
• Export options: Save as Python scripts or HTML.

Installation

Install jupyter-next from Pulsar's package installer or run ppm install jupyter-next.

Commands

Workspace commands:

• jupyter-next:toggle: toggle the active notebook item.
• jupyter-next:new-notebook: create a new notebook.
• jupyter-next:open-source: open the active notebook as plain text.

Notebook commands:

• jupyter-next:clear-output: clear active cell output.
• jupyter-next:clear-all-outputs: clear all outputs.
• jupyter-next:insert-cell-above: insert cell above.
• jupyter-next:insert-cell-below: insert cell below.
• jupyter-next:delete-cell: delete cell.
• jupyter-next:move-cell-up: move cell up.
• jupyter-next:move-cell-down: move cell down.
• jupyter-next:change-cell-to-code: change to code cell.
• jupyter-next:change-cell-to-markdown: change to markdown cell.
• jupyter-next:change-cell-to-raw: change to raw cell.
• jupyter-next:toggle-cell-output: toggle output visibility.
• jupyter-next:toggle-cell-input: toggle input visibility.
• jupyter-next:enter-edit-mode: enter edit mode.
• jupyter-next:enter-command-mode: enter command mode.
• jupyter-next:focus-previous-cell: focus previous cell.
• jupyter-next:focus-next-cell: focus next cell.
• jupyter-next:focus-first-cell: focus first cell.
• jupyter-next:focus-last-cell: focus last cell.
• jupyter-next:select-previous-cell: extend selection to previous cell.
• jupyter-next:select-next-cell: extend selection to next cell.
• jupyter-next:cut-cell: cut cell.
• jupyter-next:copy-cell: copy cell.
• jupyter-next:paste-cell-below: paste cell below.
• jupyter-next:paste-cell-above: paste cell above.
• jupyter-next:duplicate-cell: duplicate cell.
• jupyter-next:merge-cell-below: merge with cell below.
• jupyter-next:undo-cell-operation: undo the latest notebook edit.
• jupyter-next:redo-cell-operation: redo the latest notebook edit.
• jupyter-next:save: save notebook.
• jupyter-next:save-as: save notebook as.
• jupyter-next:export-to-python: export to Python script.
• jupyter-next:export-to-html: export to HTML.

Tree-view commands:

• jupyter-next:open-notebook: open the selected .ipynb file as a notebook.
• jupyter-next:open-source: open the selected .ipynb file as plain text.

Services

jupyter-next consumes tree-view@1.0.0 and simplemap@1.0.0 when available.

It provides:

• jupyter@1.0.0: access to the active notebook and document registry.
• hydrogen-adapter@1.0.0: lets hydrogen-next run notebook cells through the adapter pattern (target enumeration, output routing, kernel control).
• linter-adapter@1.0.0: map linter messages to notebook cell editors for navigation and the current-message UI.
• linter-ui@1.0.0: receive linter message sets so they can be rendered as markers on the notebook scrollmap.
• navigation-adapter@1.0.0: expose markdown headings as navigation entries.

Contributing

Got ideas to make this package better, found a bug, or want to help add new features? Just drop your thoughts on GitHub. Any feedback is welcome!