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

   1 /*\r
   2  * Copyright 2011 GRNET S.A. All rights reserved.\r
   3  *\r
   4  * Redistribution and use in source and binary forms, with or\r
   5  * without modification, are permitted provided that the following\r
   6  * conditions are met:\r
   7  *\r
   8  *   1. Redistributions of source code must retain the above\r
   9  *      copyright notice, this list of conditions and the following\r
  10  *      disclaimer.\r
  11  *\r
  12  *   2. Redistributions in binary form must reproduce the above\r
  13  *      copyright notice, this list of conditions and the following\r
  14  *      disclaimer in the documentation and/or other materials\r
  15  *      provided with the distribution.\r
  16  *\r
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS\r
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR\r
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR\r
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\r
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\r
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF\r
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED\r
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN\r
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
  28  * POSSIBILITY OF SUCH DAMAGE.\r
  29  *\r
  30  * The views and conclusions contained in the software and\r
  31  * documentation are those of the authors and should not be\r
  32  * interpreted as representing official policies, either expressed\r
  33  * or implied, of GRNET S.A.\r
  34  */\r
  35 package gr.grnet.pithos.web.client;\r
  36 \r
  37 import com.google.gwt.core.client.Scheduler;\r
  38 import com.google.gwt.event.dom.client.KeyDownEvent;\r
  39 import com.google.gwt.user.client.Command;\r
  40 import gr.grnet.pithos.web.client.foldertree.File;\r
  41 import gr.grnet.pithos.web.client.foldertree.Folder;\r
  42 import gr.grnet.pithos.web.client.foldertree.Resource;\r
  43 import gr.grnet.pithos.web.client.rest.PostRequest;\r
  44 import gr.grnet.pithos.web.client.rest.PutRequest;\r
  45 import gr.grnet.pithos.web.client.rest.RestException;\r
  46 \r
  47 import com.google.gwt.core.client.GWT;\r
  48 import com.google.gwt.dom.client.NativeEvent;\r
  49 import com.google.gwt.event.dom.client.ClickEvent;\r
  50 import com.google.gwt.event.dom.client.ClickHandler;\r
  51 import com.google.gwt.event.dom.client.KeyCodes;\r
  52 import com.google.gwt.i18n.client.DateTimeFormat;\r
  53 import com.google.gwt.user.client.Event.NativePreviewEvent;\r
  54 import com.google.gwt.user.client.ui.Button;\r
  55 import com.google.gwt.user.client.ui.DecoratedTabPanel;\r
  56 import com.google.gwt.user.client.ui.DialogBox;\r
  57 import com.google.gwt.user.client.ui.FlexTable;\r
  58 import com.google.gwt.user.client.ui.HasHorizontalAlignment;\r
  59 import com.google.gwt.user.client.ui.HorizontalPanel;\r
  60 import com.google.gwt.user.client.ui.TabPanel;\r
  61 import com.google.gwt.user.client.ui.TextBox;\r
  62 import com.google.gwt.user.client.ui.VerticalPanel;\r
  63 import java.util.Iterator;\r
  64 import java.util.Map;\r
  65 \r
  66 /**\r
  67  * The 'Folder properties' dialog box implementation.\r
  68  */\r
  69 public class FolderPropertiesDialog extends DialogBox {\r
  70 \r
  71     private Pithos app;\r
  72 \r
  73         /**\r
  74          * The widget that holds the folderName of the folder.\r
  75          */\r
  76         private TextBox folderName = new TextBox();\r
  77 \r
  78         /**\r
  79          * A flag that denotes whether the dialog will be used to create or modify a\r
  80          * folder.\r
  81          */\r
  82         private final boolean create;\r
  83 \r
  84     private PermissionsList permList;\r
  85 \r
  86         final Folder folder;\r
  87 \r
  88         final TabPanel inner;\r
  89 \r
  90         /**\r
  91          * The widget's constructor.\r
  92          */\r
  93         public FolderPropertiesDialog(final Pithos app, boolean _create,  Folder selected) {\r
  94         this.app = app;\r
  95                 setAnimationEnabled(true);\r
  96 \r
  97                 // Enable IE selection for the dialog (must disable it upon closing it)\r
  98                 app.enableIESelection();\r
  99 \r
 100                 create = _create;\r
 101                 \r
 102                 folder = selected;\r
 103 \r
 104                 // Use this opportunity to set the dialog's caption.\r
 105                 if (create)\r
 106                         setText("Create folder");\r
 107                 else\r
 108                         setText("Folder properties");\r
 109 \r
 110                 // Outer contains inner and buttons\r
 111                 VerticalPanel outer = new VerticalPanel();\r
 112                 // Inner contains generalPanel and permPanel\r
 113                 inner = new DecoratedTabPanel();\r
 114                 inner.setAnimationEnabled(true);\r
 115 \r
 116                 VerticalPanel generalPanel = new VerticalPanel();\r
 117         FlexTable generalTable = new FlexTable();\r
 118         generalTable.setText(0, 0, "Name");\r
 119         generalTable.setText(1, 0, "Parent");\r
 120         generalTable.setText(2, 0, "Creator");\r
 121         generalTable.setText(3, 0, "Last modified");\r
 122         folderName.setText(create ? "" : folder.getName());\r
 123         folderName.setReadOnly(folder.isContainer() && !create);\r
 124         generalTable.setWidget(0, 1, folderName);\r
 125 \r
 126         if (create)\r
 127             generalTable.setText(1, 1, folder.getName());\r
 128         else\r
 129             generalTable.setText(1, 1, folder.getPrefix());\r
 130         generalTable.setText(2, 1, "");\r
 131         DateTimeFormat formatter = DateTimeFormat.getFormat("d/M/yyyy h:mm a");\r
 132         if(folder.getLastModified() != null)\r
 133             generalTable.setText(3, 1, formatter.format(folder.getLastModified()));\r
 134         generalTable.getFlexCellFormatter().setStyleName(0, 0, "props-labels");\r
 135         generalTable.getFlexCellFormatter().setStyleName(1, 0, "props-labels");\r
 136         generalTable.getFlexCellFormatter().setStyleName(2, 0, "props-labels");\r
 137         generalTable.getFlexCellFormatter().setStyleName(3, 0, "props-labels");\r
 138         generalTable.getFlexCellFormatter().setStyleName(0, 1, "props-values");\r
 139         generalTable.getFlexCellFormatter().setStyleName(1, 1, "props-values");\r
 140         generalTable.getFlexCellFormatter().setStyleName(2, 1, "props-values");\r
 141         generalTable.getFlexCellFormatter().setStyleName(3, 1, "props-values");\r
 142         generalTable.setCellSpacing(4);\r
 143         generalPanel.add(generalTable);\r
 144         inner.add(generalPanel, "General");\r
 145 \r
 146         VerticalPanel permPanel = new VerticalPanel();\r
 147         FilePropertiesDialog.Images images = GWT.create(FilePropertiesDialog.Images.class);\r
 148         boolean permsReadonly = folder.getInheritedPermissionsFrom() != null || folder.existChildrenPermissions();\r
 149         permList = new PermissionsList(images, folder.getPermissions(), folder.getOwner(), permsReadonly);\r
 150         permPanel.add(permList);\r
 151 \r
 152         if (!permsReadonly) {\r
 153             HorizontalPanel permButtons = new HorizontalPanel();\r
 154             Button add = new Button("Add Group", new ClickHandler() {\r
 155                 @Override\r
 156                 public void onClick(ClickEvent event) {\r
 157                     PermissionsAddDialog dlg = new PermissionsAddDialog(app, app.getAccount().getGroups(), permList, false);\r
 158                     dlg.center();\r
 159                 }\r
 160             });\r
 161             permButtons.add(add);\r
 162             permButtons.setCellHorizontalAlignment(add, HasHorizontalAlignment.ALIGN_CENTER);\r
 163 \r
 164             Button addUser = new Button("Add User", new ClickHandler() {\r
 165                 @Override\r
 166                 public void onClick(ClickEvent event) {\r
 167                     PermissionsAddDialog dlg = new PermissionsAddDialog(app, app.getAccount().getGroups(), permList, true);\r
 168                     dlg.center();\r
 169                 }\r
 170             });\r
 171             addUser.getElement().setId("folderPropertiesDialog.button.addUser");\r
 172             permButtons.add(addUser);\r
 173             permButtons.setCellHorizontalAlignment(addUser, HasHorizontalAlignment.ALIGN_CENTER);\r
 174             permButtons.setSpacing(8);\r
 175             permButtons.addStyleName("gss-TabPanelBottom");\r
 176             permPanel.add(permButtons);\r
 177         }\r
 178 \r
 179         if (!create)\r
 180             inner.add(permPanel, "Sharing");\r
 181         inner.selectTab(0);\r
 182 \r
 183         outer.add(inner);\r
 184 \r
 185         HorizontalPanel buttons = new HorizontalPanel();\r
 186                 // Create the 'Create/Update' button, along with a listener that hides the dialog\r
 187                 // when the button is clicked and quits the application.\r
 188                 String okLabel;\r
 189                 if (create)\r
 190                         okLabel = "Create";\r
 191                 else\r
 192                         okLabel = "Update";\r
 193                 Button ok = new Button(okLabel, new ClickHandler() {\r
 194                         @Override\r
 195                         public void onClick(ClickEvent event) {\r
 196                                 createOrUpdateFolder();\r
 197                                 closeDialog();\r
 198                         }\r
 199                 });\r
 200                 buttons.add(ok);\r
 201                 buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);\r
 202                 // Create the 'Cancel' button, along with a listener that hides the\r
 203                 // dialog\r
 204                 // when the button is clicked.\r
 205                 Button cancel = new Button("Cancel", new ClickHandler() {\r
 206                         @Override\r
 207                         public void onClick(ClickEvent event) {\r
 208                                 closeDialog();\r
 209                         }\r
 210                 });\r
 211                 buttons.add(cancel);\r
 212                 buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);\r
 213                 buttons.setSpacing(8);\r
 214                 buttons.addStyleName("pithos-TabPanelBottom");\r
 215         outer.add(buttons);\r
 216         outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);\r
 217         outer.addStyleName("pithos-TabPanelBottom");\r
 218 \r
 219         setWidget(outer);\r
 220         }\r
 221 \r
 222         @Override\r
 223         public void center() {\r
 224                 super.center();\r
 225                 folderName.setFocus(true);\r
 226         }\r
 227 \r
 228         @Override\r
 229         protected void onPreviewNativeEvent(NativePreviewEvent preview) {\r
 230                 super.onPreviewNativeEvent(preview);\r
 231 \r
 232                 NativeEvent evt = preview.getNativeEvent();\r
 233                 if (evt.getType().equals(KeyDownEvent.getType().getName()))\r
 234                         // Use the popup's key preview hooks to close the dialog when either\r
 235                         // enter or escape is pressed.\r
 236                         switch (evt.getKeyCode()) {\r
 237                                 case KeyCodes.KEY_ENTER:\r
 238                                         createOrUpdateFolder();\r
 239                     closeDialog();\r
 240                                         break;\r
 241                                 case KeyCodes.KEY_ESCAPE:\r
 242                                         closeDialog();\r
 243                                         break;\r
 244                         }\r
 245         }\r
 246 \r
 247 \r
 248         /**\r
 249          * Enables IE selection prevention and hides the dialog\r
 250          * (we disable the prevention on creation of the dialog)\r
 251          */\r
 252         public void closeDialog() {\r
 253                 app.preventIESelection();\r
 254                 hide();\r
 255         }\r
 256 \r
 257         /**\r
 258          * Generate an RPC request to create a new folder.\r
 259          */\r
 260         private void createFolder() {\r
 261                 String name = folderName.getText();\r
 262         String path = folder.getUri() + "/" + name;\r
 263         PutRequest createFolder = new PutRequest(app.getApiPath(), app.getUsername(), path) {\r
 264             @Override\r
 265             public void onSuccess(Resource result) {\r
 266                 app.updateFolder(folder, true);\r
 267             }\r
 268 \r
 269             @Override\r
 270             public void onError(Throwable t) {\r
 271                                 GWT.log("", t);\r
 272                                 if (t instanceof RestException) {\r
 273                                         app.displayError("Unable to create folder:" + ((RestException) t).getHttpStatusText());\r
 274                                 }\r
 275                                 else\r
 276                                         app.displayError("System error creating folder:" + t.getMessage());\r
 277             }\r
 278         };\r
 279         createFolder.setHeader("X-Auth-Token", app.getToken());\r
 280         createFolder.setHeader("Accept", "*/*");\r
 281         createFolder.setHeader("Content-Length", "0");\r
 282         createFolder.setHeader("Content-Type", "application/folder");\r
 283         Scheduler.get().scheduleDeferred(createFolder);\r
 284         }\r
 285 \r
 286         /**\r
 287          * Upon closing the dialog by clicking OK or pressing ENTER this method does\r
 288          * the actual work of modifying folder properties or creating a new Folder\r
 289          * depending on the value of the create field\r
 290          */\r
 291         private void createOrUpdateFolder() {\r
 292                 if (create)\r
 293                         createFolder();\r
 294                 else\r
 295                         updateFolder();\r
 296 \r
 297         }\r
 298 \r
 299         private void updateFolder() {\r
 300         final Map<String, Boolean[]> perms = (permList.hasChanges() ? permList.getPermissions() : null);\r
 301         final String newName = folderName.getText().trim();\r
 302         if (!folder.isContainer() && !folder.getName().equals(newName)) {\r
 303             final String path = folder.getParent().getUri() + "/" + newName;\r
 304             PutRequest newFolder = new PutRequest(app.getApiPath(), app.getUsername(), path) {\r
 305                 @Override\r
 306                 public void onSuccess(Resource result) {\r
 307                     Iterator<File> iter = folder.getFiles().iterator();\r
 308                     app.copyFiles(iter, folder.getParent().getUri() + "/" + newName, new Command() {\r
 309                         @Override\r
 310                         public void execute() {\r
 311                             Iterator<Folder> iterf = folder.getSubfolders().iterator();\r
 312                             app.copySubfolders(iterf, folder.getParent().getUri() + "/" + newName, new Command() {\r
 313                                 @Override\r
 314                                 public void execute() {\r
 315                                     app.deleteFolder(folder);\r
 316                                     updateMetadata(path + "?update=", perms);\r
 317                                 }\r
 318                             });\r
 319                         }\r
 320                     });\r
 321                 }\r
 322 \r
 323                 @Override\r
 324                 public void onError(Throwable t) {\r
 325                     GWT.log("", t);\r
 326                     if(t instanceof RestException){\r
 327                         app.displayError("Unable to update folder: " + ((RestException) t).getHttpStatusText());\r
 328                     }\r
 329                     else\r
 330                         app.displayError("System error modifying folder: " + t.getMessage());\r
 331                 }\r
 332             };\r
 333             newFolder.setHeader("X-Auth-Token", app.getToken());\r
 334             newFolder.setHeader("Content-Type", "application/folder");\r
 335             newFolder.setHeader("Accept", "*/*");\r
 336             newFolder.setHeader("Content-Length", "0");\r
 337             Scheduler.get().scheduleDeferred(newFolder);\r
 338         }\r
 339         else\r
 340             updateMetadata(folder.getUri() + "?update=", perms);\r
 341         }\r
 342 \r
 343     private void updateMetadata(String path, Map<String, Boolean[]> newPermissions) {\r
 344         if (newPermissions != null) {\r
 345             PostRequest updateFolder = new PostRequest(app.getApiPath(), folder.getOwner(), path) {\r
 346                 @Override\r
 347                 public void onSuccess(Resource result) {\r
 348                     app.updateFolder(folder.getParent(), false);\r
 349                 }\r
 350 \r
 351                 @Override\r
 352                 public void onError(Throwable t) {\r
 353                     GWT.log("", t);\r
 354                     app.displayError("System error modifying folder: " + t.getMessage());\r
 355                 }\r
 356             };\r
 357             updateFolder.setHeader("X-Auth-Token", app.getToken());\r
 358             if (newPermissions != null) {\r
 359                 String readPermHeader = "read=";\r
 360                 String writePermHeader = "write=";\r
 361                 for (String u : newPermissions.keySet()) {\r
 362                     Boolean[] p = newPermissions.get(u);\r
 363                     if (p[0] != null && p[0])\r
 364                         readPermHeader += u + ",";\r
 365                     if (p[1] != null && p[1])\r
 366                         writePermHeader += u + ",";\r
 367                 }\r
 368                 if (readPermHeader.endsWith("="))\r
 369                     readPermHeader = "";\r
 370                 else if (readPermHeader.endsWith(","))\r
 371                     readPermHeader = readPermHeader.substring(0, readPermHeader.length() - 1);\r
 372                 if (writePermHeader.endsWith("="))\r
 373                     writePermHeader = "";\r
 374                 else if (writePermHeader.endsWith(","))\r
 375                     writePermHeader = writePermHeader.substring(0, writePermHeader.length() - 1);\r
 376                 String permHeader = readPermHeader +  ((readPermHeader.length()  > 0 && writePermHeader.length() > 0) ?  ";" : "") + writePermHeader;\r
 377                 if (permHeader.length() == 0)\r
 378                     permHeader="~";\r
 379                 updateFolder.setHeader("X-Object-Sharing", permHeader);\r
 380             }\r
 381             Scheduler.get().scheduleDeferred(updateFolder);\r
 382         }\r
 383         else\r
 384             app.updateFolder(folder.getParent(), false);\r
 385     }\r
 386 \r
 387         public void selectTab(int _tab) {\r
 388                 inner.selectTab(_tab);\r
 389         }\r
 390 }\r