wicketbox.ColResize.java Source code

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Here is the source code for wicketbox.ColResize.java

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/*
 * Copyright 2012 Sven Meier
 *
 * 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 wicketbox;

import java.util.ArrayList;
import java.util.List;

import org.apache.wicket.Component;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.OnDomReadyHeaderItem;
import org.apache.wicket.model.IModel;
import org.apache.wicket.util.lang.Args;

import wicketbox.util.CollectionFormattable;

/**
 * Resize table columns.
 * 
 * @author svenmeier
 */
public class ColResize extends AbstractBoxBehavior {

    private static final long serialVersionUID = 1L;

    private IModel<List<Integer>> widths;

    private String headerSelector;

    private String bodySelector;

    public ColResize(String headerSelector, String bodySelector, IModel<List<Integer>> widths) {
        Args.notNull(widths, "widths");

        this.headerSelector = headerSelector;
        this.bodySelector = bodySelector;
        this.widths = widths;
    }

    @Override
    public void detach(Component component) {
        super.detach(component);

        this.widths.detach();
    }

    @Override
    public final void renderHead(Component component, IHeaderResponse response) {
        super.renderHead(component, response);

        String initJS = String.format("wicketbox.colresize('%s',{header: '%s', body: '%s'},%s,%s);",
                component.getMarkupId(), headerSelector, bodySelector, getPersist(component),
                new CollectionFormattable(this.widths.getObject()));
        response.render(OnDomReadyHeaderItem.forScript(initJS));
    }

    /**
     * Sets the new widths into the model.
     * 
     * @see #onResized()
     */
    @Override
    protected void onPersist(AjaxRequestTarget target, String value) {
        List<Integer> widths = new ArrayList<Integer>();
        for (String string : value.split(":")) {
            try {
                widths.add(Integer.parseInt(string));
            } catch (Exception noInteger) {
                break;
            }
        }

        this.widths.setObject(widths);

        onResized(target);
    }

    /**
     * Called when the widths have changed and this behavior uses server
     * persistence.
     * 
     * @see #persistToServer(CharSequence, org.apache.wicket.ajax.AjaxChannel)
     * 
     * @param value
     */
    protected void onResized(AjaxRequestTarget target) {
    }
}