navigation.java

来自「web版的SVN客户端」· Java 代码 · 共 165 行

/*
 * Copyright (c) 2004, 2005 Polarion Software, All rights reserved.
 * Email: [e-mail]
 *
 * This program and the accompanying materials are made available under the
 * terms of the Apache License, Version 2.0 (the "License"). You may not use
 * this file except in compliance with the License. Copy of the License is
 * located in the file LICENSE.txt in the project distribution. You may also
 * obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
 *
 *
 * POLARION SOFTWARE MAKES NO REPRESENTATIONS OR WARRANTIES
 * ABOUT THE SUITABILITY OF THE SOFTWARE, EITHER EXPRESSED OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. POLARION SOFTWARE
 * SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT
 * OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
 */
package org.polarion.svnwebclient.web.model;

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

import org.polarion.svnwebclient.configuration.ConfigurationProvider;
import org.polarion.svnwebclient.util.UrlGenerator;
import org.polarion.svnwebclient.util.UrlGeneratorFactory;
import org.polarion.svnwebclient.util.UrlUtil;
import org.polarion.svnwebclient.web.resource.Images;
import org.polarion.svnwebclient.web.resource.Links;
import org.polarion.svnwebclient.web.support.RequestParameters;

/**
 * 
 * @author <A HREF="mailto:[e-mail]">Polarion Software </A>
 */
public class Navigation {
    public static final String REPOSITORY = "Repository";
    
    protected List path = new ArrayList();
    protected List buttons = new ArrayList();
    protected long currentRevision;
    protected String currentPathMode;
    protected String urlPrefix;
    protected String urlSuffix;
    protected String url;
    protected String location;
    
    protected Navigation(String url, String location, long currentRevision, Boolean lastFile) {    	
        this.url = url;
        this.location = location;
        this.currentRevision = currentRevision;
        String linkName = ConfigurationProvider.getInstance().isMultiRepositoryMode() ? location : Navigation.REPOSITORY;
        this.path.add(new Link(this.getNavigationUrl("", this.currentRevision, new Boolean(false)), linkName));
        
        List pathChain = UrlUtil.getPathChain(url);
        for (Iterator i = pathChain.iterator(); i.hasNext(); ) {
            String pathElement = (String) i.next();
            String pathElementName = UrlUtil.getLastPathElement(pathElement);
            if (i.hasNext()) {
                this.path.add(new Link(this.getNavigationUrl(pathElement, this.currentRevision, new Boolean(false)), pathElementName));
            } else {
                this.path.add(new Link(this.getNavigationUrl(pathElement, this.currentRevision, lastFile), pathElementName));                    
            }
        }

        if (ConfigurationProvider.getInstance().isPathAutodetect()) {
            for (int i = pathChain.size() - 1; i >= 0; i--) {
                String pathElement = (String) pathChain.get(i);
                String pathElementName = UrlUtil.getLastPathElement(pathElement);
                if (ConfigurationProvider.getInstance().getTrunkName().equals(pathElementName)) {
                    this.currentPathMode = PathSwitch.TRUNK;
                } else if (ConfigurationProvider.getInstance().getBranchesName().equals(pathElementName)) {
                    this.currentPathMode = PathSwitch.BRANCHES;
                } else if (ConfigurationProvider.getInstance().getTagsName().equals(pathElementName)) {
                    this.currentPathMode = PathSwitch.TAGS;
                }
                
                if (this.currentPathMode != null) {
                    if (pathElement.length() < url.length()) {
                        this.urlSuffix = url.substring(pathElement.length() + 1);
                    } else {
                        this.urlSuffix = "";
                    }
                    
                    if (PathSwitch.TAGS.equals(this.currentPathMode) || PathSwitch.BRANCHES.equals(this.currentPathMode)) {
                        this.urlSuffix = UrlUtil.getNextLevelFullPath(this.urlSuffix); 
                    }
                    
                    this.urlPrefix = UrlUtil.getPreviousFullPath(pathElement);
                    break;
                }
            }
        }
        
        if (this.currentRevision != -1) {
            UrlGenerator urlGenerator = UrlGeneratorFactory.getUrlGenerator(Links.SWITCH_TO_HEAD, this.location);
            urlGenerator.addParameter(RequestParameters.URL, UrlUtil.encode(url));
            urlGenerator.addParameter(RequestParameters.PEGREV, Long.toString(this.currentRevision));
            this.buttons.add(new Button(urlGenerator.getUrl(), Images.HEAD, "Switch to head revision"));
        }
        if (this.path.size() > 1) {
            Link previousLink = (Link) this.path.get(this.path.size() - 2);
            this.buttons.add(new Button(previousLink.getUrl(), Images.UP, "Go to one level up"));
        }
        
        //Disable Back button
        //this.buttons.add(new Button("javascript:history.go(-1);", Images.BACK, "Back to previous page"));        
    }
    
    public Navigation(String url, String location, long currentRevision, boolean lastFile) {
        this(url, location, currentRevision, new Boolean(lastFile));
    }
    
    public Navigation(String url, String location, long currentRevision) {
        this(url, location, currentRevision, null);
    }    
    
    protected String getNavigationUrl(String url, long currentRevision, Boolean file) {
        UrlGenerator urlGenerator;
        if (file == null) {
            urlGenerator = UrlGeneratorFactory.getUrlGenerator(Links.CONTENT, this.location);
        } else if (file.booleanValue()) {
            urlGenerator = UrlGeneratorFactory.getUrlGenerator(Links.FILE_CONTENT, this.location);            
        } else {
            urlGenerator = UrlGeneratorFactory.getUrlGenerator(Links.DIRECTORY_CONTENT, this.location);            
        }
        if (url.length() > 0) {
            urlGenerator.addParameter(RequestParameters.URL, UrlUtil.encode(url));
        }
        if (currentRevision != -1) {
            urlGenerator.addParameter(RequestParameters.CREV, Long.toString(currentRevision));
        }
        return urlGenerator.getUrl();
    }
    
    public List getPath() {
        return this.path;
    }
    
    public List getButtons() {
        return this.buttons;
    }
    
    public String getCurrentRevision() {
        if (this.currentRevision == -1) {
            return null;
        } else {
            return Long.toString(this.currentRevision);
        }
    }
    
    public PathSwitch getPathSwitch() {
        if (this.currentPathMode == null) {
            return null;
        } else {
            return new PathSwitch(this.location, this.urlPrefix, this.urlSuffix, this.currentPathMode, this.url, this.currentRevision);
        }
    }
    
    public boolean isShowPathSwitch() {
        return this.currentPathMode != null;
    }
}