Java tutorial
/* * Copyright 2007, 2008, 2009 Electronic Business Systems Ltd. * * This file is part of GSS. * * GSS 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. * * GSS 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 GSS. If not, see <http://www.gnu.org/licenses/>. */ package org.gss_project.gss.web.client; import org.gss_project.gss.web.client.components.TristateCheckBox; import org.gss_project.gss.web.client.rest.MultiplePostCommand; import org.gss_project.gss.web.client.rest.RestException; import org.gss_project.gss.web.client.rest.resource.FileResource; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.event.dom.client.FocusEvent; import com.google.gwt.event.dom.client.FocusHandler; import com.google.gwt.json.client.JSONArray; import com.google.gwt.json.client.JSONBoolean; import com.google.gwt.json.client.JSONObject; import com.google.gwt.json.client.JSONString; import com.google.gwt.user.client.Command; import com.google.gwt.user.client.DeferredCommand; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.DecoratedTabPanel; import com.google.gwt.user.client.ui.DisclosurePanel; import com.google.gwt.user.client.ui.FlexTable; import com.google.gwt.user.client.ui.FlowPanel; import com.google.gwt.user.client.ui.FocusPanel; import com.google.gwt.user.client.ui.HasHorizontalAlignment; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.VerticalPanel; /** * The 'Multiple file properties' dialog box implementation. * * @author droutsis */ public class FilesPropertiesDialog extends AbstractPropertiesDialog { private final TristateCheckBox versionedCheck; private final List<FileResource> files; private Boolean initialVersioned; /** * The widget's constructor. * * @param _files */ public FilesPropertiesDialog(final List<FileResource> _files) { super(); files = _files; int versionedNum = 0; for (FileResource fr : files) if (fr.isVersioned()) versionedNum++; Boolean versioned = null; if (versionedNum == 0) versioned = false; if (versionedNum == files.size()) versioned = true; initialVersioned = versioned; versionedCheck = new TristateCheckBox(versioned); // Set the dialog's caption. setText("Files properties"); // Outer contains inner and buttons. final VerticalPanel outer = new VerticalPanel(); final FocusPanel focusPanel = new FocusPanel(outer); // Inner contains generalPanel and permPanel. inner = new DecoratedTabPanel(); inner.setAnimationEnabled(true); final VerticalPanel generalPanel = new VerticalPanel(); final HorizontalPanel buttons = new HorizontalPanel(); final VerticalPanel verPanel = new VerticalPanel(); final HorizontalPanel vPanel = new HorizontalPanel(); inner.add(generalPanel, "General"); inner.add(verPanel, "Versions"); inner.selectTab(0); final FlexTable generalTable = new FlexTable(); generalTable.setText(0, 0, String.valueOf(files.size()) + " files selected"); generalTable.setText(1, 0, "Folder"); generalTable.setText(2, 0, "Tags"); FileResource firstFile = files.get(0); if (firstFile.getFolderName() != null) generalTable.setText(1, 1, firstFile.getFolderName()); else generalTable.setText(1, 1, "-"); // Find if tags are identical List<String> tagsList = files.get(0).getTags(); List<String> tagss; for (int i = 1; i < files.size(); i++) { tagss = files.get(i).getTags(); if (tagsList.size() != tagss.size() || !tagsList.containsAll(tagss)) { tagsList = null; break; } } // Get the tags. StringBuffer tagsBuffer = new StringBuffer(); if (tagsList == null) tagsBuffer.append(MULTIPLE_VALUES_TEXT); else { Iterator i = tagsList.iterator(); while (i.hasNext()) { String tag = (String) i.next(); tagsBuffer.append(tag).append(", "); } if (tagsBuffer.length() > 1) tagsBuffer.delete(tagsBuffer.length() - 2, tagsBuffer.length() - 1); } initialTagText = tagsBuffer.toString(); tags.setText(initialTagText); tags.addFocusHandler(new FocusHandler() { @Override public void onFocus(FocusEvent event) { if (MULTIPLE_VALUES_TEXT.equals(tags.getText())) tags.setText(""); } }); generalTable.setWidget(2, 1, tags); generalTable.getFlexCellFormatter().setStyleName(0, 0, "props-labels"); generalTable.getFlexCellFormatter().setColSpan(0, 0, 2); generalTable.getFlexCellFormatter().setStyleName(1, 0, "props-labels"); generalTable.getFlexCellFormatter().setStyleName(2, 0, "props-labels"); generalTable.getFlexCellFormatter().setStyleName(0, 1, "props-values"); generalTable.getFlexCellFormatter().setStyleName(1, 1, "props-values"); generalTable.getFlexCellFormatter().setStyleName(2, 1, "props-values"); generalTable.setCellSpacing(4); // Create the 'OK' button, along with a listener that hides the dialog // when the button is clicked. final Button ok = new Button("OK", new ClickHandler() { @Override public void onClick(ClickEvent event) { accept(); closeDialog(); } }); buttons.add(ok); buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER); // Create the 'Cancel' button, along with a listener that hides the // dialog when the button is clicked. final Button cancel = new Button("Cancel", new ClickHandler() { @Override public void onClick(ClickEvent event) { closeDialog(); } }); buttons.add(cancel); buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER); buttons.setSpacing(8); buttons.addStyleName("gss-TabPanelBottom"); generalPanel.add(generalTable); // Asynchronously retrieve the tags defined by this user. DeferredCommand.addCommand(new Command() { @Override public void execute() { updateTags(); } }); DisclosurePanel allTags = new DisclosurePanel("All tags"); allTagsContent = new FlowPanel(); allTags.setContent(allTagsContent); generalPanel.add(allTags); generalPanel.setSpacing(4); vPanel.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER); vPanel.setSpacing(8); vPanel.addStyleName("gss-TabPanelBottom"); vPanel.add(new Label("Versioned")); vPanel.add(versionedCheck); verPanel.add(vPanel); outer.add(inner); outer.add(buttons); outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER); outer.addStyleName("gss-TabPanelBottom"); focusPanel.setFocus(true); setWidget(outer); } /** * Accepts any change and updates the file * */ @Override protected void accept() { JSONObject json = new JSONObject(); if (versionedCheck.getState() != null && !versionedCheck.getState().equals(initialVersioned)) json.put("versioned", JSONBoolean.getInstance(versionedCheck.getState())); JSONArray taga = new JSONArray(); int i = 0; String tagText = tags.getText(); if (!MULTIPLE_VALUES_TEXT.equals(tagText) && !initialTagText.equals(tagText)) { String[] tagset = tagText.split(","); for (String t : tagset) { JSONString to = new JSONString(t); taga.set(i, to); i++; } json.put("tags", taga); } String jsonString = json.toString(); if (jsonString.equals("{}")) { GWT.log("NO CHANGES", null); return; } final List<String> fileIds = new ArrayList<String>(); for (FileResource f : files) fileIds.add(f.getUri() + "?update="); MultiplePostCommand rt = new MultiplePostCommand(fileIds.toArray(new String[0]), jsonString, 200) { @Override public void onComplete() { GSS.get().getTreeView().refreshCurrentNode(false); } @Override public void onError(String p, Throwable t) { GWT.log("", t); if (t instanceof RestException) { int statusCode = ((RestException) t).getHttpStatusCode(); if (statusCode == 405) GSS.get().displayError("You don't have the necessary permissions"); else if (statusCode == 404) GSS.get().displayError("File does not exist"); else if (statusCode == 409) GSS.get().displayError("A file with the same name already exists"); else if (statusCode == 413) GSS.get().displayError("Your quota has been exceeded"); else GSS.get().displayError("Unable to modify file::" + ((RestException) t).getHttpStatusText()); } else GSS.get().displayError("System error modifying file:" + t.getMessage()); } }; DeferredCommand.addCommand(rt); } }