com.gitblit.wicket.panels.PathBreadcrumbsPanel.java Source code

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Here is the source code for com.gitblit.wicket.panels.PathBreadcrumbsPanel.java

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/*
 * Copyright 2011 gitblit.com.
 *
 * 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.gitblit.wicket.panels;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.markup.repeater.Item;
import org.apache.wicket.markup.repeater.data.DataView;
import org.apache.wicket.markup.repeater.data.ListDataProvider;

import com.gitblit.wicket.WicketUtils;
import com.gitblit.wicket.pages.TreePage;

public class PathBreadcrumbsPanel extends Panel {

    private static final long serialVersionUID = 1L;

    private static final String ROOT = "--ROOT--";

    public PathBreadcrumbsPanel(String id, final String repositoryName, String pathName, final String objectId) {
        super(id);
        List<BreadCrumb> crumbs = new ArrayList<BreadCrumb>();
        crumbs.add(new BreadCrumb("[" + repositoryName + "]", ROOT, false));

        if (pathName != null && pathName.length() > 0) {
            String[] paths = pathName.split("/");
            StringBuilder sb = new StringBuilder();

            for (int i = 0; i < paths.length; i++) {
                String path = paths[i];
                sb.append(path);
                crumbs.add(new BreadCrumb(path, sb.toString(), i == (paths.length - 1)));
                sb.append('/');
            }
        }

        ListDataProvider<BreadCrumb> crumbsDp = new ListDataProvider<BreadCrumb>(crumbs);
        DataView<BreadCrumb> pathsView = new DataView<BreadCrumb>("path", crumbsDp) {
            private static final long serialVersionUID = 1L;

            @Override
            public void populateItem(final Item<BreadCrumb> item) {
                final BreadCrumb entry = item.getModelObject();
                String path = entry.path;
                if (path.equals(ROOT)) {
                    path = null;
                }
                if (entry.isLeaf) {
                    item.add(new Label("pathLink", entry.name));
                    item.add(new Label("pathSeparator", "").setVisible(false));
                } else {
                    item.add(new LinkPanel("pathLink", null, entry.name, TreePage.class,
                            WicketUtils.newPathParameter(repositoryName, objectId, path)));
                    item.add(new Label("pathSeparator", "/"));
                }
            }
        };
        add(pathsView);
    }

    private static class BreadCrumb implements Serializable {

        private static final long serialVersionUID = 1L;

        final String name;
        final String path;
        final boolean isLeaf;

        BreadCrumb(String name, String path, boolean isLeaf) {
            this.name = name;
            this.path = path;
            this.isLeaf = isLeaf;
        }
    }
}