Extensions using webview prevent window focus when using preventDefault & stopPropagation

[AThilenius]

Continuation of #124318

To reiterate, extensions using a webview that call e.preventDefault(); and e.stopPropagation(); in onmousedown within the webview itself, prevent vscode from focusing the window altogether. This is problematic for me because the editor in question is a single canvas (all custom drawing using WebGL) that still needs to listen to keyboard events.

Steps to Reproduce:

1. Clone https://github.com/AThilenius/vscode-issue-124318
2. npm i, code . and hit F5
3. Open exampleFiles/example.cscratch and a new tab next to it.
4. Notice that you can focus the custom editor with the first button, but not the second

Note: my repo is just a clone of https://github.com/microsoft/vscode-extension-samples/tree/main/custom-editor-sample, and apart from the .gitignore the only changes made are these: https://github.com/AThilenius/vscode-issue-124318/commit/9087bb5be337cd65edb00e1b2fae53f24fba5bfb

• VS Code Version: 1.69.0 92d25e35d9bf1a6b16f7d0758f25d48ace11e5b9 x64
• OS Version: Win 11, WSL2 (largely irrelevant though, this is a client-side/Electron issue).

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Happy to take a workaround if you know of one! I need the context menu to not show up on right-click though.

[AThilenius]

Well, answered my own question by asking about the workaround 🤦‍♂️ Just use oncontextmenu to prevent the context menu and let the onmousedown event bubble.

I'm going to leave this open in case you want to consider it a bug still. I could see it going either way. But please feel free to close if you think it's intended behavior.

[vscodenpa]

We closed this issue because we don't plan to address it in the foreseeable future. If you disagree and feel that this issue is crucial: we are happy to listen and to reconsider.

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Thanks for your understanding, and happy coding!