ShortcutsLoader.java

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/*
 * This file is part of JXClient, the Fullscreen Java Crossfire Client.
 *
 * JXClient is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * JXClient is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with JXClient; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Copyright (C) 2005-2008 Yann Chachkoff
 * Copyright (C) 2006-2017,2019-2023 Andreas Kirschbaum
 * Copyright (C) 2010-2012,2014-2018,2020-2023 Nicolas Weeger
 */
 
package com.realtime.crossfire.jxclient.window;
 
import com.realtime.crossfire.jxclient.settings.Filenames;
import com.realtime.crossfire.jxclient.shortcuts.Shortcut;
import com.realtime.crossfire.jxclient.shortcuts.ShortcutSlot;
import com.realtime.crossfire.jxclient.shortcuts.Shortcuts;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.NoSuchFileException;
import java.nio.file.Path;
import org.jetbrains.annotations.NotNull;
 
public class ShortcutsLoader {
 
    private ShortcutsLoader() {
    }
 
    public static void loadShortcuts(@NotNull final Shortcuts shortcuts, @NotNull final CharSequence hostname, @NotNull final CharSequence character) {
        final Path file;
        try {
            file = Filenames.getShortcutsFile(hostname, character);
        } catch (final IOException ex) {
            System.err.println("Cannot read shortcuts file: "+ex.getMessage());
            return;
        }
 
        try {
            shortcuts.clearShortcuts();
            shortcuts.setFile(file);
            try (BufferedReader br = Files.newBufferedReader(file, StandardCharsets.UTF_8)) {
                for (final ShortcutSlot shortcutSlot : ShortcutSlot.values()) {
                    final String line = br.readLine();
                    shortcuts.setShortcutString(shortcutSlot, line == null ? "" : line, false);
                }
                // ignore excess entries in file
            }
        } catch (final NoSuchFileException ignored) {
            //noinspection UnnecessaryReturnStatement
            return;
        } catch (final IOException ex) {
            System.err.println("Cannot read shortcuts file "+file+": "+ex.getMessage());
            //noinspection UnnecessaryReturnStatement
            return;
        }
    }
 
    public static void saveShortcuts(@NotNull final Path file, @NotNull final Iterable<Shortcut> shortcuts) {
        try {
            try (BufferedWriter bw = Files.newBufferedWriter(file)) {
                for (Shortcut shortcut : shortcuts) {
                    if (shortcut == null) {
                        bw.write("\n");
                    } else {
                        bw.write(shortcut.getCommand());
                        bw.write("\n");
                    }
                }
            }
        } catch (final IOException ex) {
            System.err.println("Cannot write shortcuts file "+file+": "+ex.getMessage());
            //noinspection UnnecessaryReturnStatement
            return;
        }
    }
 
}