The current copy() only allows setting one data source, but some applications need to offer their copy in different formats. For example, libreoffice offers rich text with plain text as a fallback.
For implementing such a functionality, we need a copy_multi() function that takes, e.g., a vector of (Source, MimeType) or a hashmap of MimeType: Source, and offers them simultaneously.
The current
copy()only allows setting one data source, but some applications need to offer their copy in different formats. For example, libreoffice offers rich text with plain text as a fallback.For implementing such a functionality, we need a
copy_multi()function that takes, e.g., a vector of (Source, MimeType) or a hashmap of MimeType: Source, and offers them simultaneously.