eclipse-theia/theia

Multiple instances of Theia breaks VScode extensions with webview.

Open

#10,693 创建于 2022年1月31日

在 GitHub 查看
 (4 评论) (3 反应) (0 负责人)TypeScript (18,676 star) (2,478 fork)batch import
help wantedwebviews

描述

Bug Description:

If two theia instances are open at the same time only the first opened theia will be able to show a webview. the second and third will get an error.

Steps to Reproduce:

  1. start two instances of Theia (Electron)
  2. start a vscode-extension that uses a webview in both Theia instances
  3. The webview will only render in the first instance. theiabug

Additional Information

  • Operating System: Only confirmed on Windows yet
  • Theia Version: 1.22.0
  • Only Electron is affected

贡献者指南

技术栈
typescriptelectron
领域
desktopfrontend
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-2 days
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
mostly clear
前置要求
Understanding of Theia's webview implementationFamiliarity with Electron multi instance behaviour
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
25
研究方向
Investigate how Theia manages webview instances, especially in the context of multiple Electron windows. Look at the extension host and webview registration logic in the Theia source code, starting with packages/plugin ext/src/main/browser/webview/. Determine if there is a singleton or global state that prevents the second instance from rendering webviews. Check if the issue is related to the webview preload script or backend communication.