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.dom.client.NativeEvent;
  40 import com.google.gwt.event.dom.client.ClickEvent;
  41 import com.google.gwt.event.dom.client.ClickHandler;
  42 import com.google.gwt.event.dom.client.KeyCodes;
  43 import com.google.gwt.user.client.Command;
  44 import com.google.gwt.user.client.Event.NativePreviewEvent;
  45 import com.google.gwt.user.client.ui.Anchor;
  46 import com.google.gwt.user.client.ui.Button;
  47 import com.google.gwt.user.client.ui.DialogBox;
  48 import com.google.gwt.user.client.ui.FileUpload;
  49 import com.google.gwt.user.client.ui.FlowPanel;
  50 import com.google.gwt.user.client.ui.FormPanel;
  51 import com.google.gwt.user.client.ui.Grid;
  52 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  53 import com.google.gwt.user.client.ui.Hidden;
  54 import com.google.gwt.user.client.ui.HorizontalPanel;
  55 import com.google.gwt.user.client.ui.Label;
  56 import com.google.gwt.user.client.ui.VerticalPanel;
  57
  58 /**
  59  * The 'File upload' dialog box implementation.
  60  */
  61 public class FileUploadDialog extends DialogBox {
  62
  63     public static final boolean DONE = true;
  64
  65     Anchor close;
  66
  67         /**
  68          * The Form element that performs the file upload.
  69          */
  70     protected final FormPanel form = new FormPanel();
  71
  72         private final FileUpload upload = new FileUpload();
  73
  74         private final Label filenameLabel = new Label();
  75
  76     private final Label foldernameLabel = new Label();
  77
  78     private Button submit;
  79
  80         protected Folder folder;
  81
  82     protected Pithos app;
  83
  84     private boolean inProgress = false;
  85
  86         /**
  87          * The widget's constructor.
  88          */
  89         public FileUploadDialog(Pithos _app) {
  90                 app = _app;
  91                 close = new Anchor("close");
  92                 close.addStyleName("close");
  93                 close.addClickHandler(new ClickHandler() {
  94
  95                         @Override
  96                         public void onClick(ClickEvent event) {
  97                                 close();
  98                         }
  99                 });
 100                 // Set the dialog's caption.
 101                 setText("File upload");
 102                 setAnimationEnabled(true);
 103                 setGlassEnabled(true);
 104                 setStyleName("pithos-DialogBox");
 105                 setVisible(false);
 106
 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);
 111
 112                 // Create a panel to hold all of the form widgets.
 113                 VerticalPanel panel = new VerticalPanel();
 114                 panel.setWidth("470px");
 115                 panel.add(close);
 116                 form.setWidget(panel);
 117
 118                 VerticalPanel inner = new VerticalPanel();
 119                 inner.addStyleName("inner");
 120
 121         final Hidden auth = new Hidden("X-Auth-Token");
 122         inner.add(auth);
 123                 upload.setName("X-Object-Data");
 124                 upload.setVisible(false);
 125                 filenameLabel.setText("");
 126                 filenameLabel.setVisible(false);
 127                 filenameLabel.setStyleName("props-labels");
 128                 HorizontalPanel fileUploadPanel = new HorizontalPanel();
 129                 fileUploadPanel.setVisible(false);
 130                 fileUploadPanel.add(filenameLabel);
 131                 fileUploadPanel.add(upload);
 132                 Grid generalTable = new Grid(2, 2);
 133                 generalTable.setText(0, 0, "Folder");
 134         generalTable.setWidget(0, 1, foldernameLabel);
 135                 generalTable.setWidget(1, 1, fileUploadPanel);
 136                 generalTable.getCellFormatter().setStyleName(0, 0, "props-labels");
 137         generalTable.getCellFormatter().setStyleName(0, 1, "props-values");
 138         generalTable.getCellFormatter().setVisible(1, 0, false);
 139                 generalTable.setCellSpacing(4);
 140
 141                 inner.add(generalTable);
 142
 143                 FlowPanel uploader = new FlowPanel();
 144                 uploader.getElement().setId("uploader");
 145                 inner.add(uploader);
 146
 147                 panel.add(inner);
 148                 panel.setCellHorizontalAlignment(inner, HasHorizontalAlignment.ALIGN_CENTER);
 149
 150                 setWidget(form);
 151         }
 152
 153         private void refreshFolder() {
 154                 if (app.getSelectedTree().equals(app.getFolderTreeView()))
 155                         app.updateFolder(folder, true, new Command() {
 156
 157                                 @Override
 158                                 public void execute() {
 159                                         app.updateStatistics();
 160                                 }
 161                         }, true);
 162                 else
 163                         app.updateOtherSharedFolder(folder, true);
 164         }
 165
 166         native void setupUpload(FileUploadDialog dlg, String path, String token) /*-{
 167                 var uploader = $wnd.$('#uploader').pluploadQueue();
 168                 var createUploader = function() {
 169                         $wnd.$("#uploader").pluploadQueue({
 170                                 // General settings
 171                                 runtimes : 'html5, flash, gears, silverlight, browserplus, html4',
 172                                 unique_names : true,
 173
 174                                 // Flash settings
 175                                 flash_swf_url : 'plupload/js/plupload.flash.swf',
 176
 177                                 // Silverlight settings
 178                                 silverlight_xap_url : 'plupload/js/plupload.silverlight.xap',
 179
 180                                 multiple_queues: true,
 181
 182                                 preinit: {
 183                                         Init: function(up, info) {
 184                                                 if ($wnd.console && $wnd.console.log)
 185                                                         $wnd.console.log("Init fired");
 186                                                 up.settings.file_data_name = "X-Object-Data";
 187                                         }
 188
 189                                 },
 190
 191                                 init: {
 192                                         FilesAdded: function(up, files) {
 193                                                 for (var j=0; j<files.length; j++)
 194                                                         files[j].url = up.path + "/" + files[j].name + "?X-Auth-Token=" + encodeURIComponent(token);
 195                                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::setInProgress(Z)(true);
 196                                         },
 197
 198                                         FilesRemoved: function(up, files) {
 199                                                 if (up.files.length == 0)
 200                                                         dlg.@gr.grnet.pithos.web.client.FileUploadDialog::setInProgress(Z)(false);
 201                                                 else
 202                                                         dlg.@gr.grnet.pithos.web.client.FileUploadDialog::setInProgress(Z)(true);
 203                                         },
 204
 205                                         BeforeUpload: function(up, file) {
 206                                                 if ($wnd.console && $wnd.console.log)
 207                                                         $wnd.console.log('About to upload ' + file.url);
 208                                                 up.settings.url = file.url;
 209                                         },
 210
 211                                         FileUploaded: function(up, file, response) {
 212                                                 if ($wnd.console && $wnd.console.log) {
 213                                                         $wnd.console.log('File ' + file.name + ' uploaded');
 214                                                         $wnd.console.log('Response: ' + response);
 215                                                 }
 216                                         },
 217
 218                                         UploadComplete: function(up, files) {
 219                                                 if ($wnd.console && $wnd.console.log)
 220                                                         $wnd.console.log('All files finished');
 221                                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::setInProgress(Z)(false);
 222                                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::hideUploadIndicator()();
 223                                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::refreshFolder()();
 224                                         },
 225
 226                                         Error: function(up, error) {
 227                                                 if ($wnd.console && $wnd.console.log)
 228                                                         $wnd.console.log("Error occured:" + error);
 229                                         }
 230                                 }
 231                         });
 232                         return $wnd.$('#uploader').pluploadQueue();
 233                 };
 234
 235                 if ($wnd.console && $wnd.console.log)
 236                         $wnd.console.log(uploader);
 237                 if (!uploader) {
 238                         uploader = createUploader();
 239                 }
 240                 else {
 241                         var removeAll = true;
 242                         var files = uploader.files;
 243                         if ($wnd.console && $wnd.console.log)
 244                                 $wnd.console.log('About to check ' + files.length + ' files');
 245                         for (var i=0; i<files.length; i++) {
 246                                 var f = files[i];
 247                                 if (f.status != $wnd.plupload.DONE && f.status != $wnd.plupload.FAILED) {
 248                                         removeAll = false;
 249                                         break;
 250                                 }
 251                         }
 252                         if (removeAll) {
 253                                 if ($wnd.console && $wnd.console.log)
 254                                         $wnd.console.log('About to remove ' + files.length + ' files');
 255                                 uploader.destroy();
 256                                 uploader = createUploader();
 257                                 if ($wnd.console && $wnd.console.log)
 258                                         $wnd.console.log(uploader);
 259                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::setInProgress(Z)(false);
 260                         }
 261                         else {
 262                                 dlg.@gr.grnet.pithos.web.client.FileUploadDialog::setInProgress(Z)(true);
 263                         }
 264                 }
 265                 uploader.path = path;
 266         }-*/;
 267
 268         native boolean isUploading()/*-{
 269                 var uploader = $wnd.$("#uploader").pluploadQueue();
 270                 var files = uploader.files;
 271                 for (var i=0; i<files.length; i++) {
 272                         var f = files[i];
 273                         if (f.status == $wnd.plupload.UPLOADING) {
 274                                 return true;
 275                         }
 276                 }
 277                 return false;
 278         }-*/;
 279
 280         @Override
 281         protected void onPreviewNativeEvent(NativePreviewEvent event) {
 282                 super.onPreviewNativeEvent(event);
 283
 284                 NativeEvent evt = event.getNativeEvent();
 285                 if (evt.getType().equals("keydown"))
 286                         // Use the popup's key preview hooks to close the dialog when
 287                         // escape is pressed.
 288                         switch (evt.getKeyCode()) {
 289                                 case KeyCodes.KEY_ESCAPE:
 290                                         close();
 291                                         break;
 292                         }
 293         }
 294
 295         public void setFolder(Folder folder) {
 296                 this.folder = folder;
 297                 foldernameLabel.setText(folder.getName());
 298         }
 299
 300         @Override
 301         public void center() {
 302                 app.hideUploadIndicator();
 303                 setVisible(true);
 304                 setModal(true);
 305                 super.center();
 306                 String path = app.getApiPath() + folder.getOwner() + folder.getUri();
 307                 setupUpload(this, path, app.getToken());
 308                 super.center();
 309         }
 310
 311         private void hideUploadIndicator() {
 312                 app.hideUploadIndicator();
 313         }
 314
 315         void close() {
 316                 setVisible(false);
 317                 setModal(false);
 318                 if (isUploading())
 319                         app.showUploadIndicator();
 320         }
 321
 322         private void setInProgress(boolean _inProgress) {
 323                 inProgress = _inProgress;
 324                 if (inProgress)
 325                         close.setText("hide");
 326                 else
 327                         close.setText("close");
 328         }
 329 }