2 * Copyright 2011 GRNET S.A. All rights reserved.
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4 * Redistribution and use in source and binary forms, with or
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5 * without modification, are permitted provided that the following
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6 * conditions are met:
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8 * 1. Redistributions of source code must retain the above
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9 * copyright notice, this list of conditions and the following
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12 * 2. Redistributions in binary form must reproduce the above
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13 * copyright notice, this list of conditions and the following
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14 * disclaimer in the documentation and/or other materials
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15 * provided with the distribution.
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17 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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24 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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27 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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28 * POSSIBILITY OF SUCH DAMAGE.
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30 * The views and conclusions contained in the software and
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31 * documentation are those of the authors and should not be
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32 * interpreted as representing official policies, either expressed
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33 * or implied, of GRNET S.A.
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35 package gr.grnet.pithos.web.client;
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37 import com.google.gwt.core.client.Scheduler;
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38 import gr.grnet.pithos.web.client.MessagePanel.Images;
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39 import gr.grnet.pithos.web.client.foldertree.File;
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40 import gr.grnet.pithos.web.client.foldertree.Resource;
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41 import gr.grnet.pithos.web.client.rest.DeleteRequest;
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42 import gr.grnet.pithos.web.client.rest.RestException;
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44 import java.util.Iterator;
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45 import java.util.List;
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47 import com.google.gwt.core.client.GWT;
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48 import com.google.gwt.dom.client.NativeEvent;
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49 import com.google.gwt.event.dom.client.ClickEvent;
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50 import com.google.gwt.event.dom.client.ClickHandler;
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51 import com.google.gwt.event.dom.client.KeyCodes;
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52 import com.google.gwt.http.client.Response;
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53 import com.google.gwt.user.client.Command;
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54 import com.google.gwt.user.client.Event.NativePreviewEvent;
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55 import com.google.gwt.user.client.ui.AbstractImagePrototype;
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56 import com.google.gwt.user.client.ui.Button;
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57 import com.google.gwt.user.client.ui.DialogBox;
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58 import com.google.gwt.user.client.ui.HTML;
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59 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
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60 import com.google.gwt.user.client.ui.HorizontalPanel;
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61 import com.google.gwt.user.client.ui.VerticalPanel;
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64 * The 'delete file' dialog box.
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66 public class DeleteFileDialog extends DialogBox {
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68 private List<File> files;
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70 protected Pithos app;
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73 * The widget's constructor.
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75 * @param images the supplied images
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77 public DeleteFileDialog(Pithos _app, Images images, List<File> _files) {
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80 // Set the dialog's caption.
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81 setText("Confirmation");
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82 setAnimationEnabled(true);
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83 // Create a VerticalPanel to contain the label and the buttons.
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84 VerticalPanel outer = new VerticalPanel();
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85 HorizontalPanel buttons = new HorizontalPanel();
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88 if (files.size() == 1)
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89 text = new HTML("<table><tr><td>" + AbstractImagePrototype.create(images.warn()).getHTML() + "</td><td>" + "Are you sure you want to <b>permanently</b> delete file '" + files.get(0).getName() + "'?</td></tr></table>");
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91 text = new HTML("<table><tr><td>" + AbstractImagePrototype.create(images.warn()).getHTML() + "</td><td>" + "Are you sure you want to <b>permanently</b> delete the selected files?</td></tr></table>");
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92 text.setStyleName("pithos-warnMessage");
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95 // Create the 'Delete' button, along with a listener that hides the dialog
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96 // when the button is clicked and deletes the file.
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97 Button ok = new Button("Delete", new ClickHandler() {
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99 public void onClick(@SuppressWarnings("unused") ClickEvent event) {
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104 ok.getElement().setId("confirmation.ok");
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106 buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);
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107 // Create the 'Cancel' button, along with a listener that hides the
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108 // dialog when the button is clicked.
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109 Button cancel = new Button("Cancel", new ClickHandler() {
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111 public void onClick(@SuppressWarnings("unused") ClickEvent event) {
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115 cancel.getElement().setId("confirmation.cancel");
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116 buttons.add(cancel);
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117 buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);
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118 buttons.setSpacing(8);
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119 buttons.setStyleName("pithos-warnMessage");
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120 outer.setStyleName("pithos-warnMessage");
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121 outer.add(buttons);
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122 outer.setCellHorizontalAlignment(text, HasHorizontalAlignment.ALIGN_CENTER);
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123 outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);
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128 * Generate an RPC request to delete a file.
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130 protected void deleteFiles() {
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131 Iterator<File> iter = files.iterator();
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135 protected void deleteFile(final Iterator<File> iter) {
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136 if (iter.hasNext()) {
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137 File f = iter.next();
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138 String path = f.getUri();
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139 DeleteRequest deleteFile = new DeleteRequest(app.getApiPath(), f.getOwner(), path) {
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141 public void onSuccess(@SuppressWarnings("unused") Resource result) {
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146 public void onError(Throwable t) {
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148 if (t instanceof RestException) {
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149 app.displayError("Unable to delete file: " + ((RestException) t).getHttpStatusText());
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152 app.displayError("System error unable to delete file: "+t.getMessage());
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156 protected void onUnauthorized(Response response) {
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157 app.sessionExpired();
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160 deleteFile.setHeader("X-Auth-Token", app.getToken());
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161 Scheduler.get().scheduleDeferred(deleteFile);
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164 app.updateFolder(files.get(0).getParent(), true, new Command() {
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167 public void execute() {
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168 app.updateStatistics();
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175 protected void onPreviewNativeEvent(NativePreviewEvent preview) {
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176 super.onPreviewNativeEvent(preview);
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178 NativeEvent evt = preview.getNativeEvent();
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179 if (evt.getType().equals("keydown"))
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180 // Use the popup's key preview hooks to close the dialog when either
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181 // enter or escape is pressed.
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182 switch (evt.getKeyCode()) {
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183 case KeyCodes.KEY_ENTER:
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187 case KeyCodes.KEY_ESCAPE:
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