org.kuali.student.common.ui.client.configurable.mvc.multiplicity.RemovableItemWithHeader.java Source code

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Here is the source code for org.kuali.student.common.ui.client.configurable.mvc.multiplicity.RemovableItemWithHeader.java

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/**
 * Copyright 2010 The Kuali Foundation Licensed under the
 * Educational Community 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.osedu.org/licenses/ECL-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.kuali.student.common.ui.client.configurable.mvc.multiplicity;

import org.kuali.student.common.ui.client.widgets.KSButton;
import org.kuali.student.common.ui.client.widgets.KSLabel;
import org.kuali.student.common.ui.client.widgets.layout.VerticalFlowPanel;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;

/**
 * This wraps a widget item
 *
 * @author Kuali Student Team
 */
public class RemovableItemWithHeader extends MultiplicityItem {
    private String itemLabel = "Item ";
    private boolean useDeleteLabel = false;
    private boolean loaded = false;
    private KSLabel headerLabel;
    private boolean readOnly = false;
    protected VerticalFlowPanel itemPanel = new VerticalFlowPanel();

    public RemovableItemWithHeader() {
        initWidget(itemPanel);
    }

    public void onLoad() {
    }

    public void isReadOnly(boolean readOnly) {
        this.readOnly = readOnly;
    }

    private Widget generateRemoveWidget() {
        ClickHandler ch = new ClickHandler() {
            public void onClick(ClickEvent event) {
                getRemoveCallback().exec(RemovableItemWithHeader.this);
            }
        };

        Widget returnWidget;

        if (useDeleteLabel) {
            Label deleteLabel = new Label("Delete");
            deleteLabel.addStyleName("KS-Multiplicity-Link-Label");
            deleteLabel.addClickHandler(ch);
            returnWidget = deleteLabel;
        } else {
            returnWidget = new KSButton("-", ch);
        }

        itemPanel.addStyleName("KS-Multiplicity-Item");

        if (readOnly) {
            returnWidget.setVisible(false);
        } else {
            returnWidget.setVisible(true);
        }

        return returnWidget;
    }

    /**
     * @see org.kuali.student.common.ui.client.configurable.mvc.multiplicity.MultiplicityItem#clear()
     */
    @Override
    public void clear() {
        loaded = false;
    }

    /**
     * @see org.kuali.student.common.ui.client.configurable.mvc.multiplicity.MultiplicityItem#redraw()
     */
    @Override
    public void redraw() {
        Widget item = getItemWidget();
        if (!loaded) {
            itemPanel.addStyleName("KS-Multiplicity-Item");

            HorizontalPanel headerPanel = new HorizontalPanel();
            headerPanel.addStyleName("KS-Multiplicity-Item-Header");
            headerLabel = new KSLabel(itemLabel + " " + getItemKey());
            headerPanel.add(headerLabel);
            headerPanel.add(generateRemoveWidget());

            itemPanel.add(headerPanel);
            itemPanel.add(item);

            loaded = true;
            headerLabel.setText(itemLabel + " " + getItemKey());
        }

        //redraw() removed
        /*        if (item instanceof Section){
        ((Section)item).redraw();
                }*/
    }

    public void setItemLabel(String itemLabel) {
        this.itemLabel = itemLabel;
    }

    public void setUseDeleteLabel(boolean useDeleteLabel) {
        this.useDeleteLabel = useDeleteLabel;
    }

}