[scripting] Incorrect reply to InternalName property in Tracker

[X512]

This is hrev53618 gcc2hybrid.

At least one Tracker window should be opened.

When executing command

hey "application/x-vnd.Be-TRAK" GET InternalName of View 0 of Window 2

, reply is

Reply BMessage(B_REPLY):
   "error" (B_INT32_TYPE) : 0 (0x00000000)

, but "result" field containing name string should be present.

[korli]

The first view is probably a BGroupView: ​https://git.haiku-os.org/haiku/tree/src/kits/tracker/ContainerWindow.cpp#n619 which isn't given a name. The BHandler which handles the "InternalName" request tries to add the name to the BMessage at ​https://git.haiku-os.org/haiku/tree/src/kits/app/Handler.cpp#n243 BMessage ignores the call, being passed a NULL value. It seems one can't add a NULL "result" field in a BMessage, and the failure B_BAD_VALUE is ignored in BHandler::MessageReceived().

In the end, the right question is what should be the correct reply. B_BAD_VALUE as a error isn't nice too.

[X512]

BeOS returns empty B_REPLY message in this case, "error" field is also missing.

I think that it's strange that NULL is a valid name for BHandler. At least "" (empty string) name should be used. I don't know can it cause compatability issues.

[korli]

Sorry, I'm not following you. When BeOS has the same behavior, where is the bug?

[X512]

I have not checked BeOS behavior when I create this ticket. In terms of BeOS compatibility this is not a bug, but behavior looks weird.