code.grnet.gr Git - pithos-web-client/blob - src/gr/grnet/pithos/web/client/FileUploadDialog.java

   1 /*
   2  * Copyright 2011-2012 GRNET S.A. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or
   5  * without modification, are permitted provided that the following
   6  * conditions are met:
   7  *
   8  *   1. Redistributions of source code must retain the above
   9  *      copyright notice, this list of conditions and the following
  10  *      disclaimer.
  11  *
  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.
  16  *
  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.
  29  *
  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.
  34  */
  35 package gr.grnet.pithos.web.client;
  36
  37 import gr.grnet.pithos.web.client.foldertree.Folder;
  38
  39 import com.google.gwt.core.client.Scheduler;
  40 import com.google.gwt.dom.client.NativeEvent;
  41 import com.google.gwt.event.dom.client.ClickEvent;
  42 import com.google.gwt.event.dom.client.ClickHandler;
  43 import com.google.gwt.event.dom.client.KeyCodes;
  44 import com.google.gwt.event.logical.shared.CloseEvent;
  45 import com.google.gwt.event.logical.shared.CloseHandler;
  46 import com.google.gwt.http.client.URL;
  47 import com.google.gwt.user.client.Command;
  48 import com.google.gwt.user.client.Event.NativePreviewEvent;
  49 import com.google.gwt.user.client.ui.Anchor;
  50 import com.google.gwt.user.client.ui.Button;
  51 import com.google.gwt.user.client.ui.DialogBox;
  52 import com.google.gwt.user.client.ui.FileUpload;
  53 import com.google.gwt.user.client.ui.FlowPanel;
  54 import com.google.gwt.user.client.ui.FormPanel;
  55 import com.google.gwt.user.client.ui.Grid;
  56 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  57 import com.google.gwt.user.client.ui.Hidden;
  58 import com.google.gwt.user.client.ui.HorizontalPanel;
  59 import com.google.gwt.user.client.ui.Label;
  60 import com.google.gwt.user.client.ui.PopupPanel;
  61 import com.google.gwt.user.client.ui.VerticalPanel;
  62
  63 /**
  64  * The 'File upload' dialog box implementation.
  65  */
  66 public class FileUploadDialog extends DialogBox {
  67
  68     public static final boolean DONE = true;
  69
  70         /**
  71          * The Form element that performs the file upload.
  72          */
  73     protected final FormPanel form = new FormPanel();
  74
  75         private final FileUpload upload = new FileUpload();
  76
  77         private final Label filenameLabel = new Label();
  78
  79     private final Label foldernameLabel = new Label();
  80
  81     private Button submit;
  82
  83         protected Folder folder;
  84
  85     protected Pithos app;
  86
  87         /**
  88          * The widget's constructor.
  89          */
  90         public FileUploadDialog(Pithos _app) {
  91                 app = _app;
  92                 Anchor close = new Anchor();
  93                 close.addStyleName("close");
  94                 close.addClickHandler(new ClickHandler() {
  95
  96                         @Override
  97                         public void onClick(ClickEvent event) {
  98                                 close();
  99                         }
 100                 });
 101                 // Set the dialog's caption.
 102                 setText("File upload");
 103                 setAnimationEnabled(true);
 104                 setGlassEnabled(true);
 105                 setStyleName("pithos-DialogBox");
 106                 setVisible(false);
 107
 108                 // Since we're going to add a FileUpload widget, we'll need to set the
 109                 // form to use the POST method, and multipart MIME encoding.
 110                 form.setEncoding(FormPanel.ENCODING_MULTIPART);
 111                 form.setMethod(FormPanel.METHOD_POST);
 112
 113                 // Create a panel to hold all of the form widgets.
 114                 VerticalPanel panel = new VerticalPanel();
 115                 panel.setWidth("470px");
 116                 panel.add(close);
 117                 form.setWidget(panel);
 118
 119                 VerticalPanel inner = new VerticalPanel();
 120                 inner.addStyleName("inner");
 121
 122         final Hidden auth = new Hidden("X-Auth-Token");
 123         inner.add(auth);
 124                 upload.setName("X-Object-Data");
 125                 upload.setVisible(false);
 126                 filenameLabel.setText("");
 127                 filenameLabel.setVisible(false);
 128                 filenameLabel.setStyleName("props-labels");
 129                 HorizontalPanel fileUploadPanel = new HorizontalPanel();
 130                 fileUploadPanel.setVisible(false);
 131                 fileUploadPanel.add(filenameLabel);
 132                 fileUploadPanel.add(upload);
 133                 Grid generalTable = new Grid(2, 2);
 134                 generalTable.setText(0, 0, "Folder");
 135         generalTable.setWidget(0, 1, foldernameLabel);
 136                 generalTable.setWidget(1, 1, fileUploadPanel);
 137                 generalTable.getCellFormatter().setStyleName(0, 0, "props-labels");
 138         generalTable.getCellFormatter().setStyleName(0, 1, "props-values");
 139         generalTable.getCellFormatter().setVisible(1, 0, false);
 140                 generalTable.setCellSpacing(4);
 141
 142                 inner.add(generalTable);
 143
 144                 FlowPanel uploader = new FlowPanel();
 145                 uploader.getElement().setId("uploader");
 146                 inner.add(uploader);
 147
 148                 panel.add(inner);
 149                 panel.setCellHorizontalAlignment(inner, HasHorizontalAlignment.ALIGN_CENTER);
 150
 151                 setWidget(form);
 152         }
 153
 154         private void refreshFolder() {
 155                 if (app.getSelectedTree().equals(app.getFolderTreeView()))
 156                         app.updateFolder(folder, true, new Command() {
 157
 158                                 @Override
 159                                 public void execute() {
 160                                         app.updateStatistics();
 161                                 }
 162                         });
 163                 else
 164                         app.updateOtherSharedFolder(folder, true);
 165         }
 166
 167         native void setupUpload(FileUploadDialog dlg, String path, String token) /*-{
 168                 var uploader = $wnd.$('#uploader').pluploadQueue();
 169                 var createUploader = function() {
 170                         $wnd.$("#uploader").pluploadQueue({
 171                                 // General settings
 172                                 runtimes : 'html5, flash, gears, silverlight, browserplus, html4',
 173                                 unique_names : true,
 174
 175                                 // Flash settings
 176                                 flash_swf_url : 'plupload/js/plupload.flash.swf',
 177
 178                                 // Silverlight settings
 179                                 silverlight_xap_url : 'plupload/js/plupload.silverlight.xap',
 180
 181                                 multiple_queues: true,
 182
 183                                 preinit: {
 184                                         Init: function(up, info) {
 185                                                 $wnd.console.log("Init fired");
 186                                                 up.settings.file_data_name = "X-Object-Data";
 187                                         }
 188
 189                                 },
 190
 191                                 init: {
 192                                         FilesAdded: function(up, files) {
 193                                                 for (var j=0; j<files.length; j++)
 194                                                         files[j].url = up.path + "/" + files[j].name + "?X-Auth-Token=" + encodeURIComponent(token);
 195                                         },
 196
 197                                         BeforeUpload: function(up, file) {
 198                                                 $wnd.console.log('About to upload ' + file.url);
 199                                                 up.settings.url = file.url;
 200                                         },
 201
 202                                         FileUploaded: function(up, file, response) {
 203                                                 $wnd.console.log('File ' + file.name + ' uploaded');
 204                                                 $wnd.console.log('Response: ' + response);
 205                                         },
 206
 207                                         UploadComplete: function(up, files) {
 208                                                 $wnd.console.log('All files finished');
 209                                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::hideUploadIndicator()();
 210                                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::refreshFolder()();
 211                                         },
 212
 213                                         Error: function(up, error) {
 214                                                 $wnd.console.log("Error occured:" + error);
 215                                         }
 216                                 }
 217                         });
 218                         return $wnd.$('#uploader').pluploadQueue();
 219                 };
 220
 221                 $wnd.console.log(uploader);
 222                 if (!uploader) {
 223                         uploader = createUploader();
 224                 }
 225                 else {
 226                         var removeAll = true;
 227                         var files = uploader.files;
 228                         $wnd.console.log('About to check ' + files.length + ' files');
 229                         for (var i=0; i<files.length; i++) {
 230                                 var f = files[i];
 231                                 if (f.status != $wnd.plupload.DONE && f.status != $wnd.plupload.FAILED) {
 232                                         removeAll = false;
 233                                         break;
 234                                 }
 235                         }
 236                         if (removeAll) {
 237                                 $wnd.console.log('About to remove ' + files.length + ' files');
 238                                 uploader.destroy();
 239                                 uploader = createUploader();
 240                                 $wnd.console.log(uploader);
 241                         }
 242                 }
 243                 uploader.path = path;
 244         }-*/;
 245
 246         native boolean isUploading()/*-{
 247                 var uploader = $wnd.$("#uploader").pluploadQueue();
 248                 var files = uploader.files;
 249                 for (var i=0; i<files.length; i++) {
 250                         var f = files[i];
 251                         if (f.status == $wnd.plupload.UPLOADING) {
 252                                 return true;
 253                         }
 254                 }
 255                 return false;
 256         }-*/;
 257
 258         @Override
 259         protected void onPreviewNativeEvent(NativePreviewEvent event) {
 260                 super.onPreviewNativeEvent(event);
 261
 262                 NativeEvent evt = event.getNativeEvent();
 263                 if (evt.getType().equals("keydown"))
 264                         // Use the popup's key preview hooks to close the dialog when
 265                         // escape is pressed.
 266                         switch (evt.getKeyCode()) {
 267                                 case KeyCodes.KEY_ESCAPE:
 268                                         close();
 269                                         break;
 270                         }
 271         }
 272
 273         public void setFolder(Folder folder) {
 274                 this.folder = folder;
 275                 foldernameLabel.setText(folder.getName());
 276         }
 277
 278         @Override
 279         public void center() {
 280                 app.hideUploadIndicator();
 281                 setVisible(true);
 282                 setModal(true);
 283                 super.center();
 284                 String path = app.getApiPath() + folder.getOwner() + folder.getUri();
 285                 setupUpload(this, path, app.getToken());
 286                 super.center();
 287         }
 288
 289         private void hideUploadIndicator() {
 290                 app.hideUploadIndicator();
 291         }
 292
 293         void close() {
 294                 setVisible(false);
 295                 setModal(false);
 296                 if (isUploading())
 297                         app.showUploadIndicator();
 298         }
 299 }