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

   1 /*
   2  * Copyright 2011-2013 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.user.client.Command;
  45 import com.google.gwt.user.client.Event.NativePreviewEvent;
  46 import com.google.gwt.user.client.ui.Anchor;
  47 import com.google.gwt.user.client.ui.Button;
  48 import com.google.gwt.user.client.ui.DialogBox;
  49 import com.google.gwt.user.client.ui.FileUpload;
  50 import com.google.gwt.user.client.ui.FlowPanel;
  51 import com.google.gwt.user.client.ui.FormPanel;
  52 import com.google.gwt.user.client.ui.Grid;
  53 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  54 import com.google.gwt.user.client.ui.Hidden;
  55 import com.google.gwt.user.client.ui.HorizontalPanel;
  56 import com.google.gwt.user.client.ui.Label;
  57 import com.google.gwt.user.client.ui.VerticalPanel;
  58
  59 /**
  60  * The 'File upload' dialog box implementation.
  61  */
  62 public class FileUploadDialog extends DialogBox {
  63
  64     public static final boolean DONE = true;
  65
  66     Anchor close;
  67
  68         /**
  69          * The Form element that performs the file upload.
  70          */
  71     protected final FormPanel form = new FormPanel();
  72
  73         private final FileUpload upload = new FileUpload();
  74
  75         private final Label filenameLabel = new Label();
  76
  77     private final Label foldernameLabel = new Label();
  78
  79     private Button submit;
  80
  81         protected Folder folder;
  82
  83     protected Pithos app;
  84
  85     private boolean inProgress = false;
  86
  87         /**
  88          * The widget's constructor.
  89          */
  90         public FileUploadDialog(Pithos _app) {
  91                 app = _app;
  92                 close = new Anchor("close");
  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                 setStyleName("pithos-DialogBox");
 104                 setVisible(false);
 105
 106                 // Since we're going to add a FileUpload widget, we'll need to set the
 107                 // form to use the POST method, and multipart MIME encoding.
 108                 form.setEncoding(FormPanel.ENCODING_MULTIPART);
 109                 form.setMethod(FormPanel.METHOD_POST);
 110
 111                 // Create a panel to hold all of the form widgets.
 112                 VerticalPanel panel = new VerticalPanel();
 113                 panel.setWidth("470px");
 114                 panel.add(close);
 115                 form.setWidget(panel);
 116
 117                 VerticalPanel inner = new VerticalPanel();
 118                 inner.addStyleName("inner");
 119
 120         final Hidden auth = new Hidden("X-Auth-Token");
 121         inner.add(auth);
 122                 upload.setName("X-Object-Data");
 123                 upload.setVisible(false);
 124                 filenameLabel.setText("");
 125                 filenameLabel.setVisible(false);
 126                 filenameLabel.setStyleName("props-labels");
 127                 HorizontalPanel fileUploadPanel = new HorizontalPanel();
 128                 fileUploadPanel.setVisible(false);
 129                 fileUploadPanel.add(filenameLabel);
 130                 fileUploadPanel.add(upload);
 131                 Grid generalTable = new Grid(2, 2);
 132                 generalTable.setText(0, 0, "Folder");
 133         generalTable.setWidget(0, 1, foldernameLabel);
 134                 generalTable.setWidget(1, 1, fileUploadPanel);
 135                 generalTable.getCellFormatter().setStyleName(0, 0, "props-labels");
 136         generalTable.getCellFormatter().setStyleName(0, 1, "props-values");
 137         generalTable.getCellFormatter().setVisible(1, 0, false);
 138                 generalTable.setCellSpacing(4);
 139
 140                 inner.add(generalTable);
 141
 142                 FlowPanel uploader = new FlowPanel();
 143                 uploader.getElement().setId("uploader");
 144                 inner.add(uploader);
 145
 146                 panel.add(inner);
 147                 panel.setCellHorizontalAlignment(inner, HasHorizontalAlignment.ALIGN_CENTER);
 148
 149                 setWidget(form);
 150
 151                 Scheduler.get().scheduleDeferred(new Scheduler.ScheduledCommand() {
 152
 153                         @Override
 154                         public void execute() {
 155                                 center();
 156                                 close();
 157                         }
 158                 });
 159         }
 160
 161         private void refreshFolder() {
 162                 if (app.getSelectedTree().equals(app.getFolderTreeView()))
 163                         app.updateFolder(folder, true, new Command() {
 164
 165                                 @Override
 166                                 public void execute() {
 167                                         app.updateStatistics();
 168                                 }
 169                         }, true);
 170                 else
 171                         app.updateOtherSharedFolder(folder, true, null);
 172         }
 173
 174         native void setupUpload(FileUploadDialog dlg, Pithos app, String token) /*-{
 175                 var uploader = $wnd.$('#uploader').pluploadQueue();
 176                 var createUploader = function() {
 177                         $wnd.$("#uploader").pluploadQueue({
 178                                 // General settings
 179                                 runtimes : 'html5, flash, gears, silverlight, browserplus, html4',
 180                                 unique_names : true,
 181
 182                                 // Flash settings
 183                                 flash_swf_url : 'plupload/js/plupload.flash.swf',
 184
 185                                 // Silverlight settings
 186                                 silverlight_xap_url : 'plupload/js/plupload.silverlight.xap',
 187
 188                                 multiple_queues: true,
 189
 190                                 preinit: {
 191                                         Init: function(up, info) {
 192                                                 if ($wnd.console && $wnd.console.log)
 193                                                         $wnd.console.log("Init fired");
 194                                                 up.settings.file_data_name = "X-Object-Data";
 195                                         }
 196
 197                                 },
 198
 199                                 init: {
 200                                         FilesAdded: function(up, files) {
 201                                                 var api = app.@gr.grnet.pithos.web.client.Pithos::getApiPath()();
 202                                                 var folder = app.@gr.grnet.pithos.web.client.Pithos::getUploadFolder()();
 203                                                 var owner = folder.@gr.grnet.pithos.web.client.foldertree.Folder::getOwnerID()();
 204                                                 var uri = folder.@gr.grnet.pithos.web.client.foldertree.Folder::getUri()();
 205                                                 var path = api + owner + uri;
 206                                                 for (var j=0; j<files.length; j++)
 207                                                         files[j].url = path + "/" + files[j].name;
 208                                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::setInProgress(Z)(true);
 209                                                 if (up.state == $wnd.plupload.STOPPED)
 210                                                         up.start();
 211                                                 app.@gr.grnet.pithos.web.client.Pithos::showUploadIndicator()();
 212                                                 if (!dlg.@gr.grnet.pithos.web.client.FileUploadDialog::isVisible()())
 213                                                         app.@gr.grnet.pithos.web.client.Pithos::showUploadAlert(I)(up.files.length);
 214                                         },
 215
 216                                         FilesRemoved: function(up, files) {
 217                                                 if (up.files.length == 0)
 218                                                         dlg.@gr.grnet.pithos.web.client.FileUploadDialog::setInProgress(Z)(false);
 219                                                 else
 220                                                         dlg.@gr.grnet.pithos.web.client.FileUploadDialog::setInProgress(Z)(true);
 221                                         },
 222
 223                                         BeforeUpload: function(up, file) {
 224                                                 if ($wnd.console && $wnd.console.log)
 225                                                         $wnd.console.log('About to upload ' + file.url);
 226                                                 up.settings.url = file.url + + "?X-Auth-Token=" + encodeURIComponent(token);
 227                                         },
 228
 229                                         UploadProgress: function(up, file) {
 230                                                 $wnd.$('#upload_alert_progress_bar').css('width', up.total.percent + '%');
 231                                                 $wnd.$('#upload_alert_percent').html(up.total.percent + '%');
 232                                         },
 233
 234                                         FileUploaded: function(up, file, response) {
 235                                                 if ($wnd.console && $wnd.console.log) {
 236                                                         $wnd.console.log('File ' + file.name + ' uploaded');
 237                                                         $wnd.console.log('Response: ' + response);
 238                                                 }
 239                                                 var folder = app.@gr.grnet.pithos.web.client.Pithos::getUploadFolder()();
 240                                                 if (folder == file.folder)
 241                                                         app.@gr.grnet.pithos.web.client.Pithos::updateUploadFolder()();
 242                                         },
 243
 244                                         UploadComplete: function(up, files) {
 245                                                 if ($wnd.console && $wnd.console.log) {
 246                                                         $wnd.console.log('All files finished');
 247                                                 }
 248                                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::setInProgress(Z)(false);
 249                                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::hideUploadIndicator()();
 250                                                 app.@gr.grnet.pithos.web.client.Pithos::hideUploadAlert()();
 251                                                 var uris = [];
 252                                                 if (!dlg.@gr.grnet.pithos.web.client.FileUploadDialog::isVisible()())
 253                                                         while (files.length > 0) {
 254                                                                 uris.push(files[0].url);
 255                                                                 up.removeFile(files[0]);
 256                                                         }
 257                                                 else
 258                                                         for (var i=0; i<files.length; i++)
 259                                                                 uris.push(files[i].url);
 260                                                 app.@gr.grnet.pithos.web.client.Pithos::updateUploadFolder(Lcom/google/gwt/core/client/JsArrayString;)(uris);
 261                                         },
 262
 263                                         Error: function(up, error) {
 264                                                 if ($wnd.console && $wnd.console.log)
 265                                                         $wnd.console.log("Error occured:" + error);
 266                                         }
 267                                 }
 268                         });
 269                         return $wnd.$('#uploader').pluploadQueue();
 270                 };
 271
 272                 if ($wnd.console && $wnd.console.log)
 273                         $wnd.console.log(uploader);
 274                 if (!uploader) {
 275                         uploader = createUploader();
 276                 }
 277                 else {
 278                         var dropElm = $wnd.document.getElementById('rightPanel');
 279                         $wnd.plupload.removeAllEvents(dropElm, uploader.id);
 280                         var removeAll = true;
 281                         var files = uploader.files;
 282                         if ($wnd.console && $wnd.console.log)
 283                                 $wnd.console.log('About to check ' + files.length + ' files');
 284                         for (var i=0; i<files.length; i++) {
 285                                 var f = files[i];
 286                                 if (f.status != $wnd.plupload.DONE && f.status != $wnd.plupload.FAILED) {
 287                                         removeAll = false;
 288                                         break;
 289                                 }
 290                         }
 291                         if (removeAll) {
 292                                 if ($wnd.console && $wnd.console.log)
 293                                         $wnd.console.log('About to remove ' + files.length + ' files');
 294                                 uploader.destroy();
 295                                 uploader = createUploader();
 296                                 if ($wnd.console && $wnd.console.log)
 297                                         $wnd.console.log(uploader);
 298                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::setInProgress(Z)(false);
 299                         }
 300                         else {
 301                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::setInProgress(Z)(true);
 302                         }
 303                 }
 304         }-*/;
 305
 306         native boolean isUploading()/*-{
 307                 var uploader = $wnd.$("#uploader").pluploadQueue();
 308                 var files = uploader.files;
 309                 for (var i=0; i<files.length; i++) {
 310                         var f = files[i];
 311                         if (f.status == $wnd.plupload.UPLOADING) {
 312                                 return true;
 313                         }
 314                 }
 315                 return false;
 316         }-*/;
 317
 318         @Override
 319         protected void onPreviewNativeEvent(NativePreviewEvent event) {
 320                 super.onPreviewNativeEvent(event);
 321
 322                 NativeEvent evt = event.getNativeEvent();
 323                 if (evt.getType().equals("keydown"))
 324                         // Use the popup's key preview hooks to close the dialog when
 325                         // escape is pressed.
 326                         switch (evt.getKeyCode()) {
 327                                 case KeyCodes.KEY_ESCAPE:
 328                                         close();
 329                                         break;
 330                         }
 331         }
 332
 333         public void setFolder(Folder folder) {
 334                 this.folder = folder;
 335                 foldernameLabel.setText(folder.getName());
 336         }
 337
 338         @Override
 339         public void center() {
 340                 app.hideUploadIndicator();
 341                 setVisible(true);
 342                 setModal(true);
 343                 super.center();
 344                 setupUpload(this, app, app.getUserToken());
 345                 super.center();
 346         }
 347
 348         private void hideUploadIndicator() {
 349                 app.hideUploadIndicator();
 350         }
 351
 352         void close() {
 353                 setVisible(false);
 354                 setModal(false);
 355                 clearUploader();
 356                 if (isUploading())
 357                         app.showUploadIndicator();
 358                 setGlobalDropArea();
 359         }
 360
 361         private native void clearUploader() /*-{
 362                 var uploader = $wnd.$("#uploader").pluploadQueue();
 363                 var files = uploader.files;
 364                 var clear = true;
 365                 for (var i=0; i<files.length; i++)
 366                         if (files[i].status == $wnd.plupload.UPLOADING)
 367                                 clear = false;
 368                 if (clear)
 369                         while (files.length > 0)
 370                                 uploader.removeFile(files[0]);
 371         }-*/;
 372
 373         native void setGlobalDropArea() /*-{
 374                 var uploader = $wnd.$("#uploader").pluploadQueue();
 375                 if (uploader.runtime == 'html5') {
 376                         uploader.settings.drop_element = 'rightPanel';
 377                         uploader.trigger('PostInit');
 378                 }
 379         }-*/;
 380
 381         private void setInProgress(boolean _inProgress) {
 382                 inProgress = _inProgress;
 383                 if (inProgress)
 384                         close.setText("hide");
 385                 else
 386                         close.setText("close");
 387         }
 388 }