Under Wayland the window is native but arboard was built without its
data-control backend, so it read the X11 clipboard through XWayland,
which only holds what X11 apps copied: Paste found nothing and reported
an empty clipboard (egui's text paste into fields uses smithay-clipboard,
which is why that worked). arboard now has `wayland-data-control`, the
same as PhotoCraft; it falls back to X11 where the compositor lacks the
protocol (GNOME's Mutter).
The reporter's clipboard also held text/uri-list: with a file copied in a
file manager, Paste would have taken the path as text before the bitmap.
Copied files now paste first, as the first one that is art (SVG, PDF,
EMF/WMF or a bitmap), told from its first 4 KiB by the engine's format
detection (`clipboard::file_flavour`): text/uri-list through arboard on
Linux and macOS (a trailing CR from CRLF lists trimmed), CF_HDROP on
Windows, read with the clipboard closed again.
Dropping files on the window can't work under Wayland yet: winit 0.30,
which eframe 0.36 runs on, has no Wayland drag and drop (winit#1881,
added in 0.31), so no dropped_files arrive. docs/development.md documents
it and the workarounds (copy and paste the files, File > Place, or run
under XWayland with `WAYLAND_DISPLAY=`).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Copy and Cut also offer other apps a PNG of the copied objects, a PDF
with On Copy: PDF, and plain text when every copied object is type
(clipboard.flavours; clipboard.exportPng {scale?}, exportPdf,
exportText). Paste outside text editing takes what another app copied:
SVG, then PDF (clipboard.importPdf), then plain text as point text
(clipboard.importText), then a bitmap embedded at the view centre
(clipboard.importImage {dataBase64, mime?, center?}); pasting our own
copy keeps the lossless internal clipboard, and Cmd+V pastes a bitmap
that comes with no text. Services gains system_clipboard
(SystemClipboard: write, holds_ours, read, has): on Windows every
format at once, on macOS and Linux one (the text, else the PNG); the
web keeps SVG text only. With When pasting text: Keep Plain Text, text
the Type tool copied pastes without its formatting.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
