James Moger
2013-05-23 0b2232c34d8e087df7c29e8771318964b8a3d9c5
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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.pages;
 
import java.util.ArrayList;
import java.util.List;
 
import org.apache.wicket.PageParameters;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.link.BookmarkablePageLink;
import org.apache.wicket.markup.html.link.ExternalLink;
import org.apache.wicket.markup.repeater.Item;
import org.apache.wicket.markup.repeater.data.DataView;
import org.apache.wicket.markup.repeater.data.ListDataProvider;
import org.eclipse.jgit.diff.DiffEntry.ChangeType;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
 
import com.gitblit.GitBlit;
import com.gitblit.Keys;
import com.gitblit.models.PathModel.PathChangeModel;
import com.gitblit.models.SubmoduleModel;
import com.gitblit.utils.DiffUtils;
import com.gitblit.utils.DiffUtils.DiffOutputType;
import com.gitblit.utils.JGitUtils;
import com.gitblit.wicket.WicketUtils;
import com.gitblit.wicket.panels.CommitHeaderPanel;
import com.gitblit.wicket.panels.CommitLegendPanel;
import com.gitblit.wicket.panels.LinkPanel;
 
public class CommitDiffPage extends RepositoryPage {
 
    public CommitDiffPage(PageParameters params) {
        super(params);
 
        Repository r = getRepository();
 
        DiffOutputType diffType = DiffOutputType.forName(GitBlit.getString(Keys.web.diffStyle,
                DiffOutputType.GITBLIT.name()));
 
        RevCommit commit = getCommit();
 
        String diff = DiffUtils.getCommitDiff(r, commit, diffType);
 
        List<String> parents = new ArrayList<String>();
        if (commit.getParentCount() > 0) {
            for (RevCommit parent : commit.getParents()) {
                parents.add(parent.name());
            }
        }
 
        // commit page links
        if (parents.size() == 0) {
            add(new Label("parentLink", getString("gb.none")));
        } else {
            add(new LinkPanel("parentLink", null, parents.get(0).substring(0, 8),
                    CommitDiffPage.class, newCommitParameter(parents.get(0))));
        }
        add(new BookmarkablePageLink<Void>("patchLink", PatchPage.class,
                WicketUtils.newObjectParameter(repositoryName, objectId)));
        add(new BookmarkablePageLink<Void>("commitLink", CommitPage.class,
                WicketUtils.newObjectParameter(repositoryName, objectId)));
 
        add(new CommitHeaderPanel("commitHeader", repositoryName, commit));
 
        // changed paths list
        List<PathChangeModel> paths = JGitUtils.getFilesInCommit(r, commit);
 
        add(new CommitLegendPanel("commitLegend", paths));
        ListDataProvider<PathChangeModel> pathsDp = new ListDataProvider<PathChangeModel>(paths);
        DataView<PathChangeModel> pathsView = new DataView<PathChangeModel>("changedPath", pathsDp) {
            private static final long serialVersionUID = 1L;
            int counter;
 
            public void populateItem(final Item<PathChangeModel> item) {
                final PathChangeModel entry = item.getModelObject();
                Label changeType = new Label("changeType", "");
                WicketUtils.setChangeTypeCssClass(changeType, entry.changeType);
                setChangeTypeTooltip(changeType, entry.changeType);
                item.add(changeType);
 
                boolean hasSubmodule = false;
                String submodulePath = null;
                if (entry.isTree()) {
                    // tree
                    item.add(new LinkPanel("pathName", null, entry.path, TreePage.class,
                            WicketUtils
                                    .newPathParameter(repositoryName, entry.commitId, entry.path)));
                } else if (entry.isSubmodule()) {
                    // submodule
                    String submoduleId = entry.objectId;
                    SubmoduleModel submodule = getSubmodule(entry.path);
                    submodulePath = submodule.gitblitPath;
                    hasSubmodule = submodule.hasSubmodule;
 
                    // add relative link
                    item.add(new LinkPanel("pathName", "list", entry.path + " @ " + getShortObjectId(submoduleId), "#" + entry.path));
                } else {
                    // add relative link
                    item.add(new LinkPanel("pathName", "list", entry.path, "#" + entry.path));
                }
 
                // quick links
                if (entry.isSubmodule()) {
                    // submodule
                    item.add(new ExternalLink("patch", "").setEnabled(false));
                    item.add(new BookmarkablePageLink<Void>("view", CommitPage.class, WicketUtils
                            .newObjectParameter(submodulePath, entry.objectId)).setEnabled(hasSubmodule));
                    item.add(new ExternalLink("blame", "").setEnabled(false));
                    item.add(new BookmarkablePageLink<Void>("history", HistoryPage.class, WicketUtils
                            .newPathParameter(repositoryName, entry.commitId, entry.path))
                            .setEnabled(!entry.changeType.equals(ChangeType.ADD)));
                } else {
                    // tree or blob
                    item.add(new BookmarkablePageLink<Void>("patch", PatchPage.class, WicketUtils
                            .newPathParameter(repositoryName, entry.commitId, entry.path))
                            .setEnabled(!entry.changeType.equals(ChangeType.ADD)
                                    && !entry.changeType.equals(ChangeType.DELETE)));
                    item.add(new BookmarkablePageLink<Void>("view", BlobPage.class, WicketUtils
                            .newPathParameter(repositoryName, entry.commitId, entry.path))
                            .setEnabled(!entry.changeType.equals(ChangeType.DELETE)));
                    item.add(new BookmarkablePageLink<Void>("blame", BlamePage.class, WicketUtils
                            .newPathParameter(repositoryName, entry.commitId, entry.path))
                            .setEnabled(!entry.changeType.equals(ChangeType.ADD)
                                    && !entry.changeType.equals(ChangeType.DELETE)));
                    item.add(new BookmarkablePageLink<Void>("history", HistoryPage.class, WicketUtils
                            .newPathParameter(repositoryName, entry.commitId, entry.path))
                            .setEnabled(!entry.changeType.equals(ChangeType.ADD)));
                }
                
                WicketUtils.setAlternatingBackground(item, counter);
                counter++;
            }
        };
        add(pathsView);
        add(new Label("diffText", diff).setEscapeModelStrings(false));
    }
 
    @Override
    protected String getPageName() {
        return getString("gb.commitdiff");
    }
    
    @Override
    protected Class<? extends BasePage> getRepoNavPageClass() {
        return LogPage.class;
    }
}