* fileopctx.h: New file with declarations for the file operation
context structure.
* fileopctx.c (file_op_context_new): New function to create a file
operation context with the default file mask values.
(file_op_context_destroy): New function to destroy a file
operation context and its associated UI, if appropriate.
* filegui.h: Use complete prototype for fmd_init_i18n().
* filegui.c (FileOpContextUI): New structure that describes the UI
and internal data for file operation contexts in the text mode
version.
(file_op_context_create_ui): Renamed from create_op_win() and
made it use a context instead of global variables.
(file_op_context_destroy_ui): Likewise, renamed from
destroy_op_win().
(fmd_widgets): Removed an #ifdef HAVE_XVIEW bit and moved the
initialization of the result pointers to file_mask_dialog(), as we
need to use the pointers to the fields inside the file op context now.
Made all the functions use a file operation context.
(file_mask_dialog): Always call fmd_init_i18n(); it will take care
of idempotence by itself.
(fmd_init_i18n): Now the code that makes sure this function is
only called once is here.
* cmd.c (check_for_default): Make it use a file operation context.
* tree.c (tree_copy): Likewise.
(tree_move): Likewise.
(tree_rmdir_cmd): Likewise.
* file.c: Removed file_progress_replace_progress and
file_progress_replace_filename -- they are only used in filegui.c
as part of the UI for the file operation context.
(panel_operate_generate_prompt): Made static.
(panel_operate_generate_prompt): Always call fmd_init_i18n(); it
will take care of idempotence by itself.
(panel_operate): Removed the panel_operate_def() function, and
made panel_operate() take an extra "ask_user" argument.
(query_recursive): Made static.
* background.c (background_attention): Made static.
(register_task_running): Made static.
(do_background): Now takes a file operation context as an
argument. It stores the pid of the child there.
* Makefile.in: Added fileopctx.[ch].
