/*
 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
 *
 * 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 org.uberfire.client.workbench.widgets.panel;

import com.google.gwt.event.dom.client.FocusHandler;
import com.google.gwt.event.dom.client.HasFocusHandlers;
import com.google.gwt.event.logical.shared.HasSelectionHandlers;
import com.google.gwt.event.logical.shared.SelectionEvent;
import com.google.gwt.event.logical.shared.SelectionHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.ResizeComposite;
import org.uberfire.client.util.CSSLocatorsUtils;
import org.uberfire.client.workbench.part.WorkbenchPartPresenter;
import org.uberfire.workbench.model.PartDefinition;

public class StaticFocusedResizePanel
        extends ResizeComposite
        implements HasSelectionHandlers<PartDefinition>,
                   HasFocusHandlers {

    private final RequiresResizeFocusPanel container = new RequiresResizeFocusPanel();

    private PartDefinition partDefinition;

    public StaticFocusedResizePanel() {
        initWidget(container);
        container.addClickHandler(event -> {
            if (partDefinition != null) {
                SelectionEvent.fire(StaticFocusedResizePanel.this,
                                    partDefinition);
            }
        });
        container.getElement().addClassName(CSSLocatorsUtils.buildLocator("qe", "static-workbench-panel-view"));
    }

    public void setPart(final WorkbenchPartPresenter.View part) {
        this.partDefinition = part.getPresenter().getDefinition();
        container.setWidget(part);
    }

    public void clear() {
        partDefinition = null;
        container.clear();
    }

    public void setFocus(boolean hasFocus) {
        if (hasFocus) {
            //style
        } else {
            //style
        }
    }

    @Override
    public HandlerRegistration addSelectionHandler(final SelectionHandler<PartDefinition> handler) {
        return addHandler(handler,
                          SelectionEvent.getType());
    }

    @Override
    public HandlerRegistration addFocusHandler(FocusHandler handler) {
        return container.addFocusHandler(handler);
    }

    public WorkbenchPartPresenter.View getPartView() {
        return (WorkbenchPartPresenter.View) container.getWidget();
    }
}
