- dnd.c: drop_send_dir_listing now uses drop_append_request_keys (echoes
all request keys including Y for sub-dirs) and emits :X=handle instead
of :Y=handle:X=2. Directory handles are now the X value itself.
- dnd.c: drop_alloc_dir_handle starts handle counter at 1 so first
handle is 2, keeping 0 (absent) and 1 (symlink) reserved as per protocol.
- dnd.py: add is_dir_event() / dir_handle() helpers; update all tests to
use int(X) > 1 as directory indicator and X as the handle value.
- dnd.py: rename test_Y_key_in_dir_listing_response to
test_X_key_is_handle_in_dir_listing_response with updated assertions.
- dnd.py: test_uri_directory_transfer_tree expanded to verify unambiguous
identification (Y=parent, x=entry echoed) at all three directory levels.
Agent-Logs-Url: https://github.com/kovidgoyal/kitty/sessions/6973699c-a979-4d97-8213-1a4a501044a1
Co-authored-by: kovidgoyal <1308621+kovidgoyal@users.noreply.github.com>
- Add 37 new tests covering the drag source side of the DND protocol
- Test drag offer registration/unregistration (t=o, t=O)
- Test drag MIME type offering with various operations (copy/move/both)
- Test pre-sent data for valid/invalid indices, chunked data, multiple MIMEs
- Test image thumbnails: valid RGBA/RGB, invalid formats, dimensions, chunking
- Test drag start failures (no window, no offer, image size mismatches)
- Test drag cancellation from client (t=E:y=-1)
- Test offer replacement, cleanup, and error propagation
- Test client_id propagation for drag operations
- Test resource cleanup on window close during drag build
- Fix double-free in drag_free_built_data: set ds.items=NULL after free
- Add drag_free_offer to destroy_fake_window_contents for proper cleanup
Agent-Logs-Url: https://github.com/kovidgoyal/kitty/sessions/f9868553-29a2-48c4-85c2-b6b8f686dccc
Co-authored-by: kovidgoyal <1308621+kovidgoyal@users.noreply.github.com>
