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    nyaovimpublic

    NyaoVim

    This is a Neovim frontend built on Electron. The Neovim editor is composed as a Web Component and users can extend the UI with reusable Web Components, HTML, CSS and JavaScript.

    :help design-not says:

    Use Vim as a component from a shell or in an IDE.

    NyaoVim is built in the same spirit. NyaoVim contains the Neovim editor as a Web Component and extends its UI with web technology, as in other modern editors and IDEs (e.g. Atom, VS Code, LightTable).

    Goals

    • NyaoVim bundles no extended UI by default. It only provides the nice UI plugin architecture. Users can compose their favorite UI with Web Components, HTML and CSS. It is also easy to make a NyaoVim distribution where useful components are bundled.
    • Do not introduce another plugin manager. HTML for Web Components should be bundled with Vim plugins. Therefore, a Vim plugin manager can handle UI components, letting us bundle JS and Vim script code.
    • Do not lose Vim's comfortability by default. It should be aware of performance.
    • UI component creators can use powerful APIs, packages and tools; Node.js APIs, Electron APIs, Neovim msgpack-rpc APIs), so many npm packages and Chrome DevTools.
    • Cross Platform (Linux, OS X, Windows)

    Memo: 'nyao' is 'meow' in Japanese and its pronounce resembles 'neo'. It is also an acronym for 'Not Yet Another Original'.

    App Structure

    NyaoVim consists of Web Components on Electron as seen in the following figure. At first there is only <neovim-editor> and you can add/remove additional components.

    structure

    UI Plugin Examples

    UI plugins are installable as easily as regular plugins. Each of them is written within 100~300 lines. You can also create reusable Web Components and integrate them into NyaoVim.

    nyaovim-markdown-preview screenshot

    nyaovim-popup-tooltip screenshot

    nyaovim-mini-browser screenshot

    Usage

    Getting Started

    You can install NyaoVim as an npm package. Currently no packaging release is available yet. If you use Windows and haven't installed Neovim yet, please read first tips first.

    $ npm install -g nyaovim

    npm may require sudo if you installed node pacakge via system package manager.

    If you haven't installed Neovim yet, please install it following Neovim's instructions because NyaoVim internally uses the nvim command. Note that nvim v0.1.6 or later is needed.

    You can start NyaoVim with the nyaovim command if you install this app with npm.

    $ nyaovim [files...]

    You would see a minimal Neovim GUI editor (like gVim). This is an Electron app and Neovim is drawn on <canvas>. You can see the DevTools of this app with the 'Developer Tools' menu item.

    On first start up of NyaoVim, it creates ~/.config/nyaovim/nyaovimrc.html for UI configuration (%AppData% instead of .config in Windows). Yes, you can extend and configure UI components with HTML and CSS!

    Configure Editor Options

    I guess you're now thinking 'Hmm, font is not good and too small...'. You can configure some editor options by properties of <neovim-editor> properties. For example, below configures font face and font size by font and font-size properties. Then set line-height to 1.5 (for example, Atom adopts 1.5 as line-height).

    <neovim-editor
        id="nyaovim-editor"
        argv="[[argv]]"
        font-size="14"
        font="Ricty,monospace"
        line-height="1.5"
    ></neovim-editor>

    And you can also configure browser window options with browser-config.json (e.g. Preserving window state, Single instance app, and so on). See tips for more detail.

    Install UI Plugin

    For example, let's install nyaovim-popup-tooltip.

    As described in the Goals section, a UI plugin is a normal Neovim plugin. You can install it like any other Neovim plugin. If you use vim-plug, all you need is adding below line to your init.vim.

    Plug 'rhysd/nyaovim-popup-tooltip'

    Then you need to put the popup tooltip UI on your NyaoVim interface. Please open ~/.config/nyaovim/nyaovimrc.html (%AppData% instead of .config in Windows). As described in the Goals section, a user can build a UI with HTML and CSS with high customization.

    Please add <popup-tooltip> tag under <neovim-editor> tag as below

    <neovim-editor id="nyaovim-editor" argv="[[argv]]"></neovim-editor>
    <popup-tooltip editor="[[editor]]"></popup-tooltip>

    <popup-tooltip> is a Polymer component. editor="[[editor]]" is a data binding to pass editor instance to <popup-tooltip>.

    After installing nyaovim-popup-tooltip as a Neovim plugin and adding UI to HTML, you're all done! Open NyaoVim, move the cursor to any image path, and enter gi. NyaoVim will load the image and show it in a popup tooltip as below.

    nyaovim-popup-tooltip screenshot

    Documents

    There is more in documentation in the docs directory.

    Versioning

    NyaoVim is now under beta phase. Major version is fixed to 0 until it gets stable release.

    Updating minor version means it contains breaking changes. And updating patch version means it contains no breaking change, so you can update version easily.

    License

    MIT License.

    Logo of this app is created based on Neovim logo licensed under CCA 3.0 Unported.

    The Neovim logo by Jason Long is licensed under the Creative Commons Attribution 3.0 Unported License.

    install

    npm i nyaovim

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    version

    0.2.0

    license

    MIT

    repository

    github.com

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