/*
 * Copyright 2011 Vaadin Ltd.
 * 
 * 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 com.vaadin.terminal.gwt.client.ui;

import java.util.HashMap;
import java.util.Map;

import com.google.gwt.dom.client.NativeEvent;
import com.google.gwt.user.client.Element;
import com.vaadin.terminal.gwt.client.ApplicationConnection;
import com.vaadin.terminal.gwt.client.MouseEventDetails;
import com.vaadin.terminal.gwt.client.Paintable;

public abstract class LayoutClickEventHandler extends ClickEventHandler {

    public LayoutClickEventHandler(Paintable paintable,
            String clickEventIdentifier) {
        super(paintable, clickEventIdentifier);
    }

    protected abstract Paintable getChildComponent(Element element);

    @Override
    protected void fireClick(NativeEvent event) {
        ApplicationConnection client = getApplicationConnection();
        String pid = getApplicationConnection().getPid(paintable);

        MouseEventDetails mouseDetails = new MouseEventDetails(event,
                getRelativeToElement());
        Paintable childComponent = getChildComponent((Element) event
                .getEventTarget().cast());

        Map<String, Object> parameters = new HashMap<String, Object>();
        parameters.put("mouseDetails", mouseDetails.serialize());
        parameters.put("component", childComponent);

        client.updateVariable(pid, clickEventIdentifier, parameters, true);
    }

}