package org.simantics.document.swt.core.widget;

import java.util.List;

import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.simantics.document.server.client.WidgetData;
import org.simantics.document.server.io.CommandContext;
import org.simantics.document.server.io.CommandContextImpl;
import org.simantics.document.server.io.CommandContextMutable;
import org.simantics.document.server.io.ICommand;
import org.simantics.document.swt.core.SWTDocument;
import org.simantics.document.swt.core.base.PropertyWidgetManager;
import org.simantics.utils.datastructures.Pair;

public class ButtonSelectionListener implements SelectionListener {
    
    private WidgetData wd;
    private List<Pair<WidgetData, ICommand>> data;
    
    public ButtonSelectionListener(WidgetData wd, List<Pair<WidgetData, ICommand>> data) {
        this.wd = wd;
        this.data = data;
    }

    @Override
    public void widgetSelected(SelectionEvent e) {
        widgetDefaultSelected(e);
    }

    @Override
    public void widgetDefaultSelected(SelectionEvent e) {
//        SWTDocument document = null;
//        // Build a linked list of commands
//        ArrayList<IEventCommand> commands = new ArrayList<IEventCommand>();
//        for(WidgetData d : data.keySet()) {
//            document = (SWTDocument)d.document; // assume that all widgets are from the same document
//            IEventCommand p = d.eventCommand(data.get(d));
//            if(p != null) {
//                if(!commands.isEmpty())
//                    commands.get(commands.size()-1).setNext(p);
//                commands.add(p);
//            }
            
            CommandContextMutable context = new CommandContextImpl();
            context.putValue("event", "onPress");
            
            if(!data.isEmpty()) {
                ((SWTDocument)wd.document).handleCommands(data, context, e.widget);
            }
            
            CommandContext ret = PropertyWidgetManager.sendEvent((SWTDocument)wd.document, wd, "onPress", e.widget, context);

//        }

        // empty errors
//        if(document != null)
//            document.displayError("");

        // Execute the first command, the linked list handles the rest of them
//        if(!commands.isEmpty())
//            commands.get(0).handleCommand();
//    
    }
    
}