+EmbeddedFile EmbeddedFile::copyTo(Buffer const * buf)
+{
+ EmbeddedFile file = EmbeddedFile(absFilename(), buf->filePath());
+ file.setEmbed(embedded());
+ file.enable(buf->embedded(), buf, false);
+
+ // use external file.
+ if (!embedded())
+ return file;
+
+ LYXERR(Debug::FILES, "Copy " << availableFile()
+ << " to " << file.availableFile());
+
+ FileName from_file = availableFile();
+ FileName to_file = file.availableFile();
+
+ if (!from_file.exists()) {
+ // no from file
+ throw ExceptionMessage(ErrorException,
+ _("Failed to copy embedded file"),
+ bformat(_("Failed to embed file %1$s.\n"
+ "Please check whether the source file is available"),
+ from_utf8(absFilename())));
+ file.setEmbed(false);
+ return file;
+ }
+
+ // if destination file already exists ...
+ if (to_file.exists()) {
+ // no need to copy if the files are the same
+ if (checksum() == to_file.checksum())
+ return file;
+ // other wise, ask if overwrite
+ int const ret = Alert::prompt(
+ _("Update embedded file?"),
+ bformat(_("Embedded file %1$s already exists, do you want to overwrite it"),
+ from_utf8(to_file.absFilename())), 1, 1, _("&Overwrite"), _("&Cancel"));
+ if (ret != 0)
+ // if the user does not want to overwrite, we still consider it
+ // a successful operation.
+ return file;
+ }
+ // copy file
+ // need to make directory?
+ FileName path = to_file.onlyPath();
+ if (!path.isDirectory())
+ path.createPath();
+ if (from_file.copyTo(to_file))
+ return file;
+ throw ExceptionMessage(ErrorException,
+ _("Copy file failure"),
+ bformat(_("Cannot copy file %1$s to %2$s.\n"
+ "Please check whether the directory exists and is writeable."),
+ from_utf8(from_file.absFilename()), from_utf8(to_file.absFilename())));
+ return file;
+}
+
+