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The file tab stats the file and mounts its panel without reading it. Every panel, built-in or plugin, gets a PluginFile handle: readText, readBytes, url, version-checked writeText/writeBytes (PluginFileConflictError unless force), and watch. useFileText, useFileBytes and useFileUrl read through it, and Loading joins @getpaseo/plugin/client/ui. Panels own their loading state. The host document pipeline, the explorer preview cache and the preview lifecycle are deleted. The daemon classifies a file version from a bounded sniff and writes base64 content as bytes behind fileByteWrites. A deleted file keeps its panel mounted; a read confirms the deletion first, so a remove-and-rewrite is not reported as one. Native Source decodes with builtins and highlights in idle-time slices, the lines around the opening line first, so a large file no longer blocks the JS thread.
25 lines
1.2 KiB
Markdown
25 lines
1.2 KiB
Markdown
# Markdown file panel example
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Requires Paseo 0.13.0 or later. Install the editor dependencies, then install this directory:
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```sh
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cd plugin-examples/markdown-panel
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npm install
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paseo plugin install "$PWD"
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```
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Open a `.md` or `.markdown` file in Files. Choose **Rich Markdown — markdown-panel** in the
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picker. Check **Don't ask me again** to remember the choice on this device.
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The panel is a CodeMirror editor with Markdown highlighting, line numbers, undo, redo, and line
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wrapping. It reads the file once with `readText`, saves 500 ms after the last edit with
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`writeText`, and reports unsaved edits with `tab.setModified`. When the file changes on disk with
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nothing unsaved, it reads again; with unsaved edits, or when a write rejects with
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`PluginFileConflictError`, it offers **Reload** and **Overwrite**. The bar's switcher still offers
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Paseo's Markdown and Source panels. Native shows selectable, read-only text through `useFileText`.
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Paseo bundles the editor dependencies into this plugin. They are loaded only on web; the native
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path uses React Native primitives. DOM integration lives in `client/web.ts`.
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See the [file panel reference](https://paseo.sh/docs/plugins/reference#file-panels).
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