/*
 * Copyright 2008 Ayman Al-Sairafi ayman.alsairafi@gmail.com
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License 
 *       at http://www.apache.org/licenses/LICENSE-2.0 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
 * limitations under the License.  
 */
package jsyntaxpane.actions;

import java.awt.event.ActionEvent;
import java.util.Map;
import javax.swing.text.JTextComponent;
import jsyntaxpane.SyntaxDocument;
import jsyntaxpane.Token;
import jsyntaxpane.util.JarServiceProvider;

/**
 * Completion Actions:
 * All completions are based on a simple String to String Map.
 */
public class MapCompletionAction extends DefaultSyntaxAction {

    Map<String, String> completions;

    public MapCompletionAction() {
        super("MAP_COMPLETION");
    }

    @Override
    public void actionPerformed(JTextComponent target, SyntaxDocument sDoc,
            int dot, ActionEvent e) {
        Token token = sDoc.getTokenAt(dot);
        if (token != null) {
            String abbriv = ActionUtils.getTokenStringAt(sDoc, dot);
            if (completions.containsKey(abbriv)) {
                String completed = completions.get(abbriv);
                if (completed.indexOf('|') >= 0) {
                    int ofst = completed.length() - completed.indexOf('|') - 1;
                    sDoc.replaceToken(token, completed.replace("|", ""));
                    target.setCaretPosition(target.getCaretPosition() - ofst);
                } else {
                    sDoc.replaceToken(token, completed);
                }
            }
        }
    }

    public void setCompletionsFile(String value) {
        completions = JarServiceProvider.readStringsMap(value);
    }
}