2 * Copyright 2011 GRNET S.A. All rights reserved.
4 * Redistribution and use in source and binary forms, with or
5 * without modification, are permitted provided that the following
8 * 1. Redistributions of source code must retain the above
9 * copyright notice, this list of conditions and the following
12 * 2. Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials
15 * provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
24 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
27 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
30 * The views and conclusions contained in the software and
31 * documentation are those of the authors and should not be
32 * interpreted as representing official policies, either expressed
33 * or implied, of GRNET S.A.
35 package gr.grnet.pithos.web.client;
37 import gr.grnet.pithos.web.client.foldertree.File;
38 import gr.grnet.pithos.web.client.foldertree.Folder;
40 import com.google.gwt.core.client.GWT;
41 import com.google.gwt.dom.client.NativeEvent;
42 import com.google.gwt.event.dom.client.ClickEvent;
43 import com.google.gwt.event.dom.client.ClickHandler;
44 import com.google.gwt.event.dom.client.KeyCodes;
45 import com.google.gwt.user.client.Command;
46 import com.google.gwt.user.client.Cookies;
47 import com.google.gwt.user.client.Event.NativePreviewEvent;
48 import com.google.gwt.user.client.Window;
49 import com.google.gwt.user.client.ui.Button;
50 import com.google.gwt.user.client.ui.DialogBox;
51 import com.google.gwt.user.client.ui.FileUpload;
52 import com.google.gwt.user.client.ui.FormPanel;
53 import com.google.gwt.user.client.ui.FormPanel.SubmitCompleteEvent;
54 import com.google.gwt.user.client.ui.FormPanel.SubmitCompleteHandler;
55 import com.google.gwt.user.client.ui.FormPanel.SubmitEvent;
56 import com.google.gwt.user.client.ui.FormPanel.SubmitHandler;
57 import com.google.gwt.user.client.ui.Anchor;
58 import com.google.gwt.user.client.ui.Grid;
59 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
60 import com.google.gwt.user.client.ui.Hidden;
61 import com.google.gwt.user.client.ui.HorizontalPanel;
62 import com.google.gwt.user.client.ui.Label;
63 import com.google.gwt.user.client.ui.VerticalPanel;
66 * The 'File upload' dialog box implementation.
68 public class FileUploadDialog extends DialogBox {
70 public static final boolean DONE = true;
73 * The Form element that performs the file upload.
75 protected final FormPanel form = new FormPanel();
77 private final FileUpload upload = new FileUpload();
79 private final Label filenameLabel = new Label();
81 private final Label foldernameLabel = new Label();
83 private Button submit;
85 protected Folder folder;
90 * The widget's constructor.
92 public FileUploadDialog() {
93 Anchor close = new Anchor();
94 close.addStyleName("close");
95 close.addClickHandler(new ClickHandler() {
98 public void onClick(ClickEvent event) {
102 // Set the dialog's caption.
103 setText("File upload");
104 setAnimationEnabled(true);
105 setGlassEnabled(true);
106 setStyleName("pithos-DialogBox");
107 // Since we're going to add a FileUpload widget, we'll need to set the
108 // form to use the POST method, and multipart MIME encoding.
109 form.setEncoding(FormPanel.ENCODING_MULTIPART);
110 form.setMethod(FormPanel.METHOD_POST);
112 // Create a panel to hold all of the form widgets.
113 VerticalPanel panel = new VerticalPanel();
115 form.setWidget(panel);
117 VerticalPanel inner = new VerticalPanel();
118 inner.addStyleName("inner");
120 final Hidden auth = new Hidden("X-Auth-Token", "");
122 upload.setName("X-Object-Data");
123 filenameLabel.setText("");
124 filenameLabel.setVisible(false);
125 filenameLabel.setStyleName("props-labels");
126 HorizontalPanel fileUploadPanel = new HorizontalPanel();
127 fileUploadPanel.add(filenameLabel);
128 fileUploadPanel.add(upload);
129 Grid generalTable = new Grid(2, 2);
130 generalTable.setText(0, 0, "Folder");
131 generalTable.setWidget(0, 1, foldernameLabel);
132 generalTable.setText(1, 0, "File");
133 generalTable.setWidget(1, 1, fileUploadPanel);
134 generalTable.getCellFormatter().setStyleName(0, 0, "props-labels");
135 generalTable.getCellFormatter().setStyleName(0, 1, "props-values");
136 generalTable.getCellFormatter().setStyleName(1, 0, "props-labels");
137 generalTable.getCellFormatter().setStyleName(1, 1, "props-values");
138 generalTable.setCellSpacing(4);
140 inner.add(generalTable);
142 // Create the 'upload' button, along with a listener that submits the
144 submit = new Button("Upload", new ClickHandler() {
146 public void onClick(@SuppressWarnings("unused") ClickEvent event) {
150 submit.addStyleName("button");
153 // Add an event handler to the form.
154 form.addSubmitHandler(new SubmitHandler() {
157 public void onSubmit(@SuppressWarnings("unused") SubmitEvent event) {
158 auth.setValue(app.getToken()); //This is done here because the app object is not available in the constructor
159 Cookies.setCookie("X-Auth-Token", app.getToken(), null, Window.Location.getHostName(), app.getApiPath(), false);
162 form.addSubmitCompleteHandler(new SubmitCompleteHandler() {
165 public void onSubmitComplete(SubmitCompleteEvent event) {
166 // When the form submission is successfully completed, this
167 // event is fired. Assuming the service returned a response
168 // of type text/html, we can get the result text here (see
169 // the FormPanel documentation for further explanation).
170 String results = event.getResults();
172 // Unfortunately the results are never empty, even in
173 // the absense of errors, so we have to check for '<pre></pre>'.
174 if (results != null && results.length() > 0 && !results.equalsIgnoreCase("<pre></pre>")) {
175 GWT.log(results, null);
176 app.displayError(results);
178 if (app.getSelectedTree().equals(app.getFolderTreeView()))
179 app.updateFolder(folder, true, new Command() {
182 public void execute() {
183 app.updateStatistics();
187 app.updateOtherSharedFolder(folder, true);
193 panel.setCellHorizontalAlignment(inner, HasHorizontalAlignment.ALIGN_CENTER);
199 protected void onPreviewNativeEvent(NativePreviewEvent preview) {
200 super.onPreviewNativeEvent(preview);
202 NativeEvent evt = preview.getNativeEvent();
203 if (evt.getType().equals("keydown"))
204 // Use the popup's key preview hooks to close the dialog when either
205 // enter or escape is pressed.
206 switch (evt.getKeyCode()) {
207 case KeyCodes.KEY_ENTER:
210 case KeyCodes.KEY_ESCAPE:
217 * Make any last minute checks and start the upload.
219 protected void prepareAndSubmit() {
220 if (upload.getFilename().length() == 0) {
221 app.displayError("You must select a file!");
224 final String fname = getFilename(upload.getFilename());
225 String apath = app.getApiPath() + folder.getOwner() + folder.getUri() + "/" + fname;
226 form.setAction(apath);
227 submit.setEnabled(false);
228 upload.setVisible(false);
229 filenameLabel.setText(fname);
230 filenameLabel.setVisible(true);
232 if (getFileForName(fname) == null) {
236 // We are going to update an existing file, so show a confirmation dialog.
237 ConfirmationDialog confirm = new ConfirmationDialog("Are you sure " +
238 "you want to update " + fname + "?", "Update") {
241 public void cancel() {
242 FileUploadDialog.this.hide();
246 public void confirm() {
256 * Returns the file name from a potential full path argument. Apparently IE
257 * insists on sending the full path name of a file when uploading, forcing
258 * us to trim the extra path info. Since this is only observed on Windows we
259 * get to check for a single path separator value.
261 * @param name the potentially full path name of a file
262 * @return the file name without extra path information
264 protected String getFilename(String name) {
265 int pathSepIndex = name.lastIndexOf("\\");
266 if (pathSepIndex == -1) {
267 pathSepIndex = name.lastIndexOf("/");
268 if (pathSepIndex == -1)
271 return name.substring(pathSepIndex + 1);
274 protected File getFileForName(String name){
275 for (File f : folder.getFiles())
276 if (f.getName().equals(name))
281 public void setApp(Pithos app) {
285 public void setFolder(Folder folder) {
286 this.folder = folder;
287 foldernameLabel.setText(folder.getName());