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sprotty-vscode

This repository contains the glue code to integrate Sprotty diagrams - with or without a language server - in VSCode extensions.

Also contains an example extension for a domain-specific language for statemachines. The example is also available as States Example from the VS Code Marketplace.

Screenshot

Features

Architecture

In VS Code, extensions can contribute new UI components using a webview. Webviews communicate with the extension using the vscode-messenger library. The WebviewPanelManager uses this to send and receive Sprotty Actions to and from a WebviewEndpoint. The latter runs a webpacked bundle.js that contains the Sprotty diagram code.

Architecture Diagram

If your extension provides a language, you can include a Sprotty-enhanced language server to get fully synchronized diagrams for your language artifacts. The SprottyLspVscodeExtension acts as a relay between the language server and a SprottyLanguageWebview, and intercepts actions/LSP messages that require to interact with the VS Code workbench.

Contents

The repo is structured as follows

Development

Compile the library code and the examples:

yarn

If you also want to use the older Xtext-based example, you need to run this command before yarn:

./examples/states-xtext/language-server/gradlew -p examples/states-xtext/language-server/ build