(Selection): New typedef. Use instead of ScrapRef.
(mac_get_selection_from_symbol): Rename from get_scrap_from_symbol.
(mac_valid_selection_target_p): Rename from valid_scrap_target_type_p.
(mac_clear_selection): Rename from clear_scrap.
(get_flavor_type_from_symbol): New argument SEL and subsume function of
scrap_has_target_type. All uses changed.
(mac_get_selection_ownership_info, mac_valid_selection_value_p)
(mac_selection_has_target_p): New functions.
(mac_put_selection_value): Rename from put_scrap_string.
(mac_get_selection_value): Rename from get_scrap_string.
(mac_get_selection_target_list): Rename from get_scrap_target_type_list.
(put_scrap_private_timestamp, scrap_has_target_type)
(get_scrap_private_timestamp): Remove functions.
(SCRAP_FLAVOR_TYPE_EMACS_TIMESTAMP): Remove define.
(x_own_selection, x_get_local_selection):
Use mac_valid_selection_value_p.
(x_own_selection): Don't use put_scrap_private_timestamp.
Record OWNERSHIP-INFO into Vselection_alist instead.
(x_get_local_selection): Don't check type if request is local.
(Fx_selection_owner_p): Don't use get_scrap_private_timestamp.
Detect ownership change with OWNERSHIP-INFO in Vselection_alist instead.
(syms_of_macselect): Intern and staticpro it.
(struct suspended_ae_info): New struct.
(deferred_apple_events, defer_apple_events)
(Fmac_process_deferred_apple_events): Use it.
(suspended_apple_events): New variable.
(mac_handle_apple_event_1): New function.
(mac_handle_apple_event): Use it. Don't process previously
suspended events.
(cleanup_suspended_apple_events, get_suspension_id)n
(cleanup_all_suspended_apple_events): New functions.
(init_apple_event_handler): Call cleanup_all_suspended_apple_events
at exit.
(Fmac_cleanup_expired_apple_events, Fmac_ae_set_reply_parameter)
(Fmac_resume_apple_event): New defuns.
(syms_of_macselect): Defsubr them.
(mac_store_apple_event): Change return type to void in extern.
(mac_handle_apple_event): Don't get return value from
mac_store_apple_event.
[TARGET_API_MAC_CARBON] (Vmac_dnd_known_types): New variable.
(syms_of_macselect) [TARGET_API_MAC_CARBON]: Defvar it.
[TARGET_API_MAC_CARBON] (mac_do_track_drag): Move function from
macterm.c. Use Vmac_dnd_known_types as acceptable flavors.
[TARGET_API_MAC_CARBON] (mac_do_receive_drag): Likewise. New
implementation using create_apple_event_from_drag_ref.
[TARGET_API_MAC_CARBON] (mac_do_track_dragUPP)
(mac_do_receive_dragUPP): Move variables from macterm.c.
(install_drag_handler, remove_drag_handler): New functions.
selection converter function.
(x_clear_frame_selections): Don't call x-lost-selection-functions
if Emacs is not owner of the selection.
(Vmac_services_selection): Put variable and initialization in
#ifdef MAC_OSX.
(syms_of_macselect) [MAC_OSX]: Set default value of
Vmac_services_selection to PRIMARY.
