Java tutorial
/** * This file is part of mycollab-web. * * mycollab-web is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * mycollab-web is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with mycollab-web. If not, see <http://www.gnu.org/licenses/>. */ package com.mycollab.module.file.view; import com.mycollab.common.i18n.FileI18nEnum; import com.mycollab.core.MyCollabException; import com.mycollab.core.utils.StringUtils; import com.mycollab.module.ecm.StorageNames; import com.mycollab.module.ecm.domain.ExternalFolder; import com.mycollab.module.ecm.domain.Folder; import com.mycollab.module.file.domain.criteria.FileSearchCriteria; import com.mycollab.vaadin.UserUIContext; import com.mycollab.vaadin.events.HasSearchHandlers; import com.mycollab.vaadin.events.SearchHandler; import com.mycollab.vaadin.mvp.CacheableComponent; import com.mycollab.vaadin.mvp.ViewComponent; import com.mycollab.vaadin.web.ui.CommonUIFactory; import com.mycollab.vaadin.web.ui.WebThemes; import com.vaadin.breadcrumb.Breadcrumb; import com.vaadin.ui.Button; import java.util.ArrayList; import java.util.List; /** * @author MyCollab Ltd. * @since 1.0 */ @ViewComponent public class FileBreadcrumb extends Breadcrumb implements CacheableComponent, HasSearchHandlers<FileSearchCriteria> { private static final long serialVersionUID = 1L; private List<SearchHandler<FileSearchCriteria>> handlers; private String rootFolderPath; public FileBreadcrumb(String rootFolderPath) { if (StringUtils.isBlank(rootFolderPath)) { throw new MyCollabException("Root folder path can not be empty"); } this.rootFolderPath = rootFolderPath; this.setShowAnimationSpeed(Breadcrumb.AnimSpeed.SLOW); this.setHideAnimationSpeed(Breadcrumb.AnimSpeed.SLOW); this.setUseDefaultClickBehaviour(false); } void initBreadcrumb() { // home Btn ---------------- this.addLink(new Button(null, clickEvent -> { FileSearchCriteria criteria = new FileSearchCriteria(); criteria.setBaseFolder(rootFolderPath); criteria.setRootFolder(rootFolderPath); notifySearchHandler(criteria); })); this.select(0); Button documentBtnLink = generateBreadcrumbLink(UserUIContext.getMessage(FileI18nEnum.OPT_MY_DOCUMENTS), clickEvent -> { FileSearchCriteria criteria = new FileSearchCriteria(); criteria.setBaseFolder(rootFolderPath); criteria.setRootFolder(rootFolderPath); notifySearchHandler(criteria); }); documentBtnLink.addStyleName(WebThemes.BUTTON_LINK); this.addLink(documentBtnLink); this.setLinkEnabled(true, 1); } void gotoFolder(final Folder folder) { initBreadcrumb(); if (folder == null) { throw new MyCollabException("Folder is null"); } else if (folder instanceof ExternalFolder) { displayExternalFolder((ExternalFolder) folder); } else { displayMyCollabFolder(folder); } } private void displayMyCollabFolder(final Folder folder) { String folderPath = folder.getPath(); if (!folderPath.startsWith(rootFolderPath)) { throw new MyCollabException("Invalid path " + rootFolderPath + "---" + folderPath); } String remainPath = folderPath.substring(rootFolderPath.length()); if (remainPath.startsWith("/")) { remainPath = remainPath.substring(1); } Button btn1, btn2 = null; int index; if ((index = remainPath.lastIndexOf('/')) != -1) { String pathName = remainPath.substring(index + 1); final String newPath = remainPath.substring(0, index); remainPath = newPath; btn2 = new Button(StringUtils.trim(pathName, 25, true), clickEvent -> { FileSearchCriteria criteria = new FileSearchCriteria(); criteria.setBaseFolder(rootFolderPath + "/" + newPath); criteria.setRootFolder(rootFolderPath); notifySearchHandler(criteria); }); btn2.setDescription(pathName); } if ((index = remainPath.lastIndexOf('/')) != -1) { String pathName = remainPath.substring(index + 1); final String newPath = remainPath.substring(0, index); btn1 = new Button(StringUtils.trim(pathName, 25, true), clickEvent -> { FileSearchCriteria criteria = new FileSearchCriteria(); criteria.setBaseFolder(rootFolderPath + "/" + newPath); criteria.setRootFolder(rootFolderPath); notifySearchHandler(criteria); }); btn1.setDescription(pathName); } else { final String newPath = remainPath; btn1 = new Button(StringUtils.trim(newPath, 25, true), clickEvent -> { FileSearchCriteria criteria = new FileSearchCriteria(); criteria.setBaseFolder(rootFolderPath + "/" + newPath); criteria.setRootFolder(rootFolderPath); notifySearchHandler(criteria); }); btn1.setDescription(newPath); } addLink(btn1); if (btn2 != null) { addLink(btn2); select(btn2); } } private void displayExternalFolder(final ExternalFolder folder) { String remainPath = folder.getPath(); Button btn1 = null, btn2 = null; int index; if ((index = remainPath.lastIndexOf('/')) != -1) { if (index == 0) { btn1 = new Button(StringUtils.trim(folder.getExternalDrive().getFoldername(), 25, true), clickEvent -> { FileSearchCriteria criteria = new FileSearchCriteria(); criteria.setBaseFolder("/"); criteria.setRootFolder("/"); criteria.setStorageName(StorageNames.DROPBOX); criteria.setExternalDrive(folder.getExternalDrive()); notifySearchHandler(criteria); }); } String pathName = remainPath.substring(index + 1); if (StringUtils.isNotBlank(pathName)) { final String newPath = remainPath.substring(0, index); remainPath = newPath; btn2 = new Button(StringUtils.trim(pathName, 25, true), clickEvent -> { FileSearchCriteria criteria = new FileSearchCriteria(); criteria.setBaseFolder(newPath); criteria.setRootFolder("/"); criteria.setStorageName(StorageNames.DROPBOX); criteria.setExternalDrive(folder.getExternalDrive()); notifySearchHandler(criteria); }); btn2.setDescription(pathName); } else { remainPath = ""; } } if ((index = remainPath.lastIndexOf('/')) != -1) { String pathName = remainPath.substring(index + 1); final String newPath = remainPath.substring(0, index); btn1 = new Button(StringUtils.trim(pathName, 25, true), clickEvent -> { FileSearchCriteria criteria = new FileSearchCriteria(); criteria.setBaseFolder(newPath); criteria.setRootFolder("/"); criteria.setStorageName(StorageNames.DROPBOX); criteria.setExternalDrive(folder.getExternalDrive()); notifySearchHandler(criteria); }); btn1.setDescription(pathName); } if (btn1 != null) { addLink(btn1); } if (btn2 != null) { addLink(btn2); select(btn2); } } private static Button generateBreadcrumbLink(String linkname, Button.ClickListener listener) { return CommonUIFactory.createButtonTooltip(StringUtils.trim(linkname, 25, true), linkname, listener); } @Override public void addSearchHandler(final SearchHandler<FileSearchCriteria> handler) { if (handlers == null) { handlers = new ArrayList<>(); } handlers.add(handler); } @Override public void notifySearchHandler(final FileSearchCriteria criteria) { if (handlers != null) { for (SearchHandler<FileSearchCriteria> handler : handlers) { handler.onSearch(criteria); } } } @Override public void setTotalCountNumber(Integer totalCountNumber) { } }