file icon for webview

[ykawakamy]

Currently using FileIcon in extension webview requires a very complicated procedure.

• Get the active IconTheme with vscode.workspace.getConfiguration("workbench").get<string>("iconTheme").

• Scan vscode.extensions.all to find the active IconTheme extension.

• Generate css rules from the active IconTheme.
  equivalent to processIconThemeDocument.
  It is necessary to set asWebViewUri of IconTheme as Uri of Font.

• Set WebviewOptions#localResourceRoots to the on-disk URI of the active IconTheme extension.

• Resolve Icon Class from Uri and ThemeIcon.
  equivalent to getIconClasses
  Currently, since the detectLanguageId is not public, it is possible to use vscode.workspace.openDocument as a substitute, but it is extremely slow.

I would like you to provide the functions corresponding to processIconThemeDocument, getIconClasses, and detectLanguageId.
Otherwise, add WebviewOptions#useFileIconStyleSheet. if set, FileIcon stylesheets to be automatically embedded in the webview like acquireVsCodeApi.

This issue is related to #191387, but there is no answer to Webview there.

--
Sorry, I'm not good at English.

This is off the topic but... , I'm somtimes confused Webview, WebviewView, WebviewPanel

[mjbvz]

Sorry not sure I understand. Do you mean using the icon for the webview tab ( #90616)? Or using the icon inside the webview content?

[ykawakamy]

inside the webview content(in iframe).

[ykawakamy]

I have created a demo of treeview with FileIcon on webview.
(tested it with the default seti icon theme.)
https://github.com/ykawakamy/treeview-demo-extension

I have reimplemented processIconThemeDocument(toStyleSheet) , getIconClasses(resolveTreeIconClasses), and detectLanguageId.

If these become public APIs, we think we can adapt the webview design to vscode.

[ArthurLobopro]

I think I have the same problem

I have a CodeSnap like extension with Windows window style. I wanted to add the file icon as a Window Icon, but there are no public APIs to do it in VSCode. I would like if there is a way to get file icons

[vs-code-engineering]

Hey @mjbvz, this issue might need further attention.

@ykawakamy, you can help us out by closing this issue if the problem no longer exists, or adding more information.

[vs-code-engineering]

This issue has been closed automatically because it needs more information and has not had recent activity. See also our issue reporting guidelines.

Happy Coding!