/* Part of XPCE --- The SWI-Prolog GUI toolkit Author: Jan Wielemaker and Anjo Anjewierden E-mail: J.Wielemaker@cs.vu.nl WWW: http://www.swi.psy.uva.nl/projects/xpce/ Copyright (c) 2002-2015, University of Amsterdam VU University Amsterdam All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ :- module(prolog_preferences, [ prolog_edit_preferences/1 % +What ]). :- use_module(library(pce)). :- use_module(library(pce_tick_box)). :- autoload(library(lists), [member/2]). :- autoload(library(pce_emacs), [start_emacs/0]). :- autoload(library(swi_compatibility), [auto_call/1]). /** Edit preferences files This module provides prolog_edit_preferences/1, which is used to simplify locating the preference files and provide a default if the user has no such file. @see library(win_menu) binds this to the Settings menu of the console on the MS-Windows version. */ %! prolog_edit_preferences(+What) is det. % % Edit the specified user preference file. What is one of % % * =xpce= % * =prolog= % % The UI components are started asynchronously in the XPCE thread. prolog_edit_preferences(What) :- in_pce_thread(pce_edit_preferences(What)). pce_edit_preferences(What) :- locate_preferences(What, File), auto_call(start_emacs), ( \+ access_file(File, exist) -> send(@display, confirm, 'Preferences file %s doesn''t exist.\nCreate it?', File), ( default_preferences(What, DefFile) -> copy_file(DefFile, File) ; true ) ; access_file(File, write) -> true ; send(@display, inform, 'You cannot modify the preferences file %s', File) ), send(@emacs, goto_source_location, File). locate_preferences(xpce, File) :- ensure_xpce_config_dir(Dir), get(string('%s/Defaults', Dir), value, File). locate_preferences(prolog, File) :- prolog_init_file(Base), member(Access, [read,write]), absolute_file_name(user_app_config(Base), File, [ access(Access), file_errors(fail) ]), !. %! prolog_init_file(-Base) % % Get the base-name of the Prolog user initialization file. % % @tbd This should have a public interface. :- if(current_predicate('$cmd_option_val'/2)). prolog_init_file(Base) :- '$cmd_option_val'(init_file, Base). :- else. prolog_init_file(Base) :- '$option'(init_file, Base). :- endif. prolog_init_file('init.pl'). %! default_preferences(+Id, -File) % % If there is a default file for the preferences, return a path to % it, so the user can be presented a starting point. default_preferences(prolog, File) :- member(Location, [ swi('customize/swipl.ini'), swi('customize/dotswiplrc') ]), absolute_file_name(Location, File, [ access(read), file_errors(fail) ]), !. default_preferences(xpce, File) :- absolute_file_name(pce('Defaults.user'), File, [ access(read), file_errors(fail) ]), !. %! ensure_xpce_config_dir(-Dir:atom) % % Ensure existence of the personal XPCE config directory. ensure_xpce_config_dir(Dir) :- get(@pce, application_data, AppDir), ( send(AppDir, exists) -> true ; send(AppDir, make) ), get(AppDir, path, Dir). copy_file(From, To) :- send(file(To), copy, From).