James Moger
2011-04-21 a645ba09d693495c50ab0ee0d1fc2734407b73a4
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package com.gitblit.wicket.panels;
 
import java.util.Date;
import java.util.List;
import java.util.Map;
 
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.image.ContextImage;
import org.apache.wicket.markup.html.link.BookmarkablePageLink;
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.apache.wicket.model.StringResourceModel;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
 
import com.gitblit.GitBlit;
import com.gitblit.Keys;
import com.gitblit.utils.JGitUtils;
import com.gitblit.utils.JGitUtils.SearchType;
import com.gitblit.utils.StringUtils;
import com.gitblit.wicket.LinkPanel;
import com.gitblit.wicket.WicketUtils;
import com.gitblit.wicket.pages.CommitDiffPage;
import com.gitblit.wicket.pages.CommitPage;
import com.gitblit.wicket.pages.LogPage;
import com.gitblit.wicket.pages.SearchPage;
import com.gitblit.wicket.pages.SummaryPage;
import com.gitblit.wicket.pages.TreePage;
 
public class LogPanel extends BasePanel {
 
    private static final long serialVersionUID = 1L;
    
    private boolean hasMore = false;
 
    public LogPanel(String wicketId, final String repositoryName, final String objectId, Repository r, int limit, int pageOffset) {
        super(wicketId);
        boolean pageResults = limit <= 0;
        int itemsPerPage = GitBlit.self().settings().getInteger(Keys.web.logPageCommitCount, 50);
        if (itemsPerPage <= 1) {
            itemsPerPage = 50;
        }
 
        final Map<ObjectId, List<String>> allRefs = JGitUtils.getAllRefs(r);
        List<RevCommit> commits;
        if (pageResults) {
            // Paging result set
            commits = JGitUtils.getRevLog(r, objectId, pageOffset * itemsPerPage, itemsPerPage);
        } else {
            // Fixed size result set
            commits = JGitUtils.getRevLog(r, objectId, 0, limit);
        }
 
        // inaccurate way to determine if there are more commits.
        // works unless commits.size() represents the exact end. 
        hasMore = commits.size() >= itemsPerPage;
 
        // header
        if (pageResults) {
            // shortlog page
            // show repository summary page link
            add(new LinkPanel("header", "title", repositoryName, SummaryPage.class, WicketUtils.newRepositoryParameter(repositoryName)));
        } else {
            // summary page
            // show shortlog page link
            add(new LinkPanel("header", "title", new StringResourceModel("gb.log", this, null), LogPage.class, WicketUtils.newRepositoryParameter(repositoryName)));
        }
 
        ListDataProvider<RevCommit> dp = new ListDataProvider<RevCommit>(commits);
        DataView<RevCommit> logView = new DataView<RevCommit>("commit", dp) {
            private static final long serialVersionUID = 1L;
            int counter = 0;
 
            public void populateItem(final Item<RevCommit> item) {
                final RevCommit entry = item.getModelObject();
                final Date date = JGitUtils.getCommitDate(entry);
 
                item.add(WicketUtils.createDateLabel("commitDate", date, getTimeZone()));
 
                // author search link
                String author = entry.getAuthorIdent().getName();
                LinkPanel authorLink = new LinkPanel("commitAuthor", "list", author, SearchPage.class, WicketUtils.newSearchParameter(repositoryName, objectId, author, SearchType.AUTHOR));
                setPersonSearchTooltip(authorLink, author, SearchType.AUTHOR);
                item.add(authorLink);
 
                // merge icon
                if (entry.getParentCount() > 1) {
                    item.add(new ContextImage("commitIcon", "/com/gitblit/wicket/resources/commit_merge_16x16.png"));
                } else {
                    item.add(new ContextImage("commitIcon", "/com/gitblit/wicket/resources/blank.png"));
                }
                
                // short message
                String shortMessage = entry.getShortMessage();
                String trimmedMessage = StringUtils.trimShortLog(shortMessage);
                LinkPanel shortlog = new LinkPanel("commitShortMessage", "list subject", trimmedMessage, CommitPage.class, WicketUtils.newObjectParameter(repositoryName, entry.getName()));
                if (!shortMessage.equals(trimmedMessage)) {
                    WicketUtils.setHtmlTitle(shortlog, shortMessage);
                }
                item.add(shortlog);
 
                item.add(new RefsPanel("commitRefs", repositoryName, entry, allRefs));
 
                item.add(new BookmarkablePageLink<Void>("view", CommitPage.class, WicketUtils.newObjectParameter(repositoryName, entry.getName())));
                item.add(new BookmarkablePageLink<Void>("diff", CommitDiffPage.class, WicketUtils.newObjectParameter(repositoryName, entry.getName())));
                item.add(new BookmarkablePageLink<Void>("tree", TreePage.class, WicketUtils.newObjectParameter(repositoryName, entry.getName())));
 
                WicketUtils.setAlternatingBackground(item, counter);
                counter++;
            }
        };
        add(logView);
 
        // determine to show pager, more, or neither
        if (limit <= 0) {
            // no display limit
            add(new Label("moreLogs", "").setVisible(false));
        } else {
            if (pageResults) {
                // paging
                add(new Label("moreLogs", "").setVisible(false));
            } else {
                // more
                if (commits.size() == limit) {
                    // show more
                    add(new LinkPanel("moreLogs", "link", new StringResourceModel("gb.moreLogs", this, null), LogPage.class, WicketUtils.newRepositoryParameter(repositoryName)));
                } else {
                    // no more
                    add(new Label("moreLogs", "").setVisible(false));
                }
            }
        }
    }
    
    public boolean hasMore() {
        return hasMore;
    }
}