com.google.gwt.gen2.demo.scrolltable.client.option.paging.CrossPageSelectionOption.java Source code

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Here is the source code for com.google.gwt.gen2.demo.scrolltable.client.option.paging.CrossPageSelectionOption.java

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/*
 * Copyright 2008 Google Inc.
 * 
 * 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.google.gwt.gen2.demo.scrolltable.client.option.paging;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.gen2.demo.scrolltable.client.PagingScrollTableDemo;
import com.google.gwt.gen2.demo.scrolltable.client.option.AbstractOption;
import com.google.gwt.gen2.demo.scrolltable.client.option.CustomForm;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;

/**
 * An option.
 */
public class CrossPageSelectionOption extends AbstractOption {
    /**
     * The label that displays the status.
     */
    private Label statusLabel = null;

    @Override
    protected String getDescription() {
        return "Enable cross page selection to remember selected row values " + "across pages.";
    }

    @Override
    protected Widget onInitialize() {
        CustomForm form = new CustomForm();

        // Add the current status
        statusLabel = new Label();
        form.addLabeledWidget("Current Status:", statusLabel);
        refreshStatus();

        // Add button to change status
        {
            Button button = new Button("Toggle Cross Page Selection", new ClickHandler() {
                public void onClick(ClickEvent event) {
                    boolean enabled = PagingScrollTableDemo.get().getPagingScrollTable()
                            .isCrossPageSelectionEnabled();
                    PagingScrollTableDemo.get().getPagingScrollTable().setCrossPageSelectionEnabled(!enabled);
                    refreshStatus();
                }
            });
            form.addButton(button);
        }

        return form;
    }

    /**
     * Refresh the status.
     */
    private void refreshStatus() {
        if (PagingScrollTableDemo.get().getPagingScrollTable().isCrossPageSelectionEnabled()) {
            statusLabel.setText("enabled");
        } else {
            statusLabel.setText("disabled");
        }
    }
}