How to add a listener to 'New File'

Dennis · 31 May 2022 06:04

For example, for a Cmake project, when adding CPP files, the configuration of Cmake files will be automatically added. Can this be implemented through theia? How do you do that?

msujew · 31 May 2022 09:11

Hi @Dennis,

you can simply listen to any changes in your whole workspace using the FileService.onDidFilesChange event. Here’s a sample implementation of this:

github.com

eclipse-theia/theia/blob/ede3d6fa8854ffbbd409360fa143a84c10352ce5/examples/api-samples/src/browser/file-watching/sample-file-watching-contribution.ts#L78-L89


this.fileService.onDidFilesChange(event => {
    // Only log if the verbose preference is set.
    if (this.verbose) {
        // Get the workspace roots for the current frontend:
        const roots = this.workspaceService.tryGetRoots();
        // Create some name to help find out which frontend logged the message:
        const workspace = roots.length > 0
            ? roots.map(root => this.labelProvider.getLongName(root.resource)).join('+')
            : '<no workspace>';
        console.log(`Sample File Watching: ${event.changes.length} file(s) changed! ${workspace}`);
    }
});