package org.activityinfo.ui.client.component.formdesigner.container;
/*
 * #%L
 * ActivityInfo Server
 * %%
 * Copyright (C) 2009 - 2013 UNICEF
 * %%
 * This program 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 3 of the 
 * License, or (at your option) any later version.
 * 
 * This program 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 this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.google.gwt.user.client.ui.*;
import org.activityinfo.ui.client.component.formdesigner.FormDesigner;
import org.activityinfo.ui.client.component.formdesigner.FormDesignerStyles;
import org.activityinfo.ui.client.component.formdesigner.event.HeaderSelectionEvent;
import org.activityinfo.ui.client.component.formdesigner.event.WidgetContainerSelectionEvent;
import org.activityinfo.ui.client.widget.ConfirmDialog;

/**
 * @author yuriyz on 7/8/14.
 */
public class WidgetContainerPanel {

    private static OurUiBinder uiBinder = GWT
            .create(OurUiBinder.class);

    interface OurUiBinder extends UiBinder<Widget, WidgetContainerPanel> {
    }

    private final FormDesigner formDesigner;

    @UiField
    Button removeButton;
    @UiField
    FocusPanel focusPanel;
    @UiField
    HTML label;
    @UiField
    SimplePanel widgetContainer;
    @UiField
    Label dragHandle;

    public WidgetContainerPanel(FormDesigner formDesigner) {
        uiBinder.createAndBindUi(this);
        this.formDesigner = formDesigner;
        this.formDesigner.getEventBus().addHandler(WidgetContainerSelectionEvent.TYPE, new WidgetContainerSelectionEvent.Handler() {
            @Override
            public void handle(WidgetContainerSelectionEvent event) {
                setSelected(false);
            }
        });
        this.formDesigner.getEventBus().addHandler(HeaderSelectionEvent.TYPE, new HeaderSelectionEvent.Handler() {
            @Override
            public void handle(HeaderSelectionEvent event) {
                setSelected(false);
            }
        });

        focusPanel.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                WidgetContainerPanel.this.onClick();
            }
        });
    }

    @UiHandler("removeButton")
    public void onRemove(ClickEvent clickEvent) {
        ConfirmDialog.confirm(new DeleteFormFieldAction(focusPanel, formDesigner));
    }

    public Button getRemoveButton() {
        return removeButton;
    }

    public FocusPanel getFocusPanel() {
        return focusPanel;
    }

    private void onClick() {
        Scheduler.get().scheduleDeferred(new Scheduler.ScheduledCommand() {
            @Override
            public void execute() {
                setSelected(true);
            }
        });
    }

    public HTML getLabel() {
        return label;
    }

    public Widget asWidget() {
        return focusPanel;
    }

    public Label getDragHandle() {
        return dragHandle;
    }

    public SimplePanel getWidgetContainer() {
        return widgetContainer;
    }

    public void setSelected(boolean selected) {
        if (selected) {
            focusPanel.addStyleName(FormDesignerStyles.INSTANCE.widgetContainerSelected());
        } else {
            focusPanel.removeStyleName(FormDesignerStyles.INSTANCE.widgetContainerSelected());
        }
    }
}