Select the file after opening system file explorer

[KoBeWi]

Describe the project you are working on

A big project with many folders and files.

Describe the problem or limitation you are having in your project

It happens quite often that I need to open some directory looking for specific file. However when I use the Show in File Manager option, it only opens the directory. I have to find the file again, which often is more difficult than from within the editor due to the *.import litter.

Describe the feature / enhancement and how it helps to overcome the problem or limitation

When I click the Show in File Manager option in filesystem dock, it should not only open the directory, but also select the file.

See also godotengine/godot#26364

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

It needs some platform-specific code.

If this enhancement will not be used often, can it be worked around with a few lines of script?

Not really.

Is there a reason why this should be core and not an add-on in the asset library?

It's about editor filesystem dock usability.

[Calinou]

Note that this requires OS-specific code to be implemented:
https://forum.qt.io/topic/18157/solved-open-folder-explorer-with-pre-selected-file

On Windows, a \select <filename> parameter can be passed to explorer.exe, but there is no CLI equivalent on other platforms.

[EricEzaM]

How jank is this? Acceptable?

Error OS_Windows::shell_open(String p_uri) {
	if (p_uri.begins_with("file://")) {
		String explorer_param = "/select," + p_uri;
		ShellExecute(nullptr, nullptr, "explorer.exe", (LPCSTR)(explorer_param.utf8().get_data()), nullptr, SW_SHOWNORMAL);
	} else {
		ShellExecuteW(nullptr, nullptr, (LPCWSTR)(p_uri.utf16().get_data()), nullptr, nullptr, SW_SHOWNORMAL);
	}
	return OK;
}

I also had to comment out this part to get it to work, otherwise it just kept opening to select the folder. This may impact other platforms...?

		case FILE_SHOW_IN_EXPLORER: {
			// Show the file/folder in the OS explorer.
			String fpath = path;
			if (path == "Favorites") {
				fpath = p_selected[0];
			}

			/*if (!fpath.ends_with("/")) {
				fpath = fpath.get_base_dir();
			}*/
			String dir = ProjectSettings::get_singleton()->globalize_path(fpath);
			OS::get_singleton()->shell_open(String("file://") + dir);
		} break;

[lexum0]

Note that this requires OS-specific code to be implemented

The API to use in macOS is NSWorkspace.shared.activateFileViewerSelecting(url)

[KoBeWi]

Implemented by godotengine/godot#69698