bundles/org.simantics.annotation.ui/src/org/simantics/annotation/ui/internal/SaveAnnotationDialog.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2013 Association for Decentralized Information Management in\r
   3  * Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     Semantum Oy - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.annotation.ui.internal;\r
  13 \r
  14 import java.util.Map;\r
  15 \r
  16 import org.eclipse.core.runtime.Status;\r
  17 import org.eclipse.jface.dialogs.IDialogSettings;\r
  18 import org.eclipse.jface.layout.GridDataFactory;\r
  19 import org.eclipse.jface.resource.ImageDescriptor;\r
  20 import org.eclipse.jface.viewers.StructuredSelection;\r
  21 import org.eclipse.swt.SWT;\r
  22 import org.eclipse.swt.events.ModifyEvent;\r
  23 import org.eclipse.swt.events.ModifyListener;\r
  24 import org.eclipse.swt.widgets.Composite;\r
  25 import org.eclipse.swt.widgets.Control;\r
  26 import org.eclipse.swt.widgets.Label;\r
  27 import org.eclipse.swt.widgets.Shell;\r
  28 import org.eclipse.swt.widgets.Text;\r
  29 import org.eclipse.ui.PlatformUI;\r
  30 import org.simantics.Simantics;\r
  31 import org.simantics.annotation.ui.Activator;\r
  32 import org.simantics.db.Resource;\r
  33 import org.simantics.db.common.uri.UnescapedChildMapOfResource;\r
  34 import org.simantics.db.exception.DatabaseException;\r
  35 import org.simantics.ui.workbench.dialogs.ResourceSelectionDialog3;\r
  36 import org.simantics.utils.datastructures.Pair;\r
  37 \r
  38 /**\r
  39  * @author Jani Simomaa <jani.simomaa@semantum.fi>\r
  40  */\r
  41 public class SaveAnnotationDialog extends ResourceSelectionDialog3<Resource> {\r
  42 \r
  43         private String name;\r
  44 \r
  45         public SaveAnnotationDialog(Shell shell,\r
  46                         Map<Resource, Pair<String, ImageDescriptor>> parameter, String title) {\r
  47                 super(shell, parameter, title);\r
  48                 this.name = "";\r
  49         }\r
  50 \r
  51         @Override\r
  52         protected IDialogSettings getBaseDialogSettings() {\r
  53                 return Activator.getDefault().getDialogSettings();\r
  54         }\r
  55 \r
  56         @Override\r
  57         protected Control createExtendedContentArea(Composite parent) {\r
  58                 Label l = new Label(parent, SWT.NONE); \r
  59                 l.setText("Select a name:");\r
  60                 GridDataFactory.fillDefaults().grab(true, false).applyTo(l);\r
  61                 final Text t = new Text(parent,SWT.BORDER);\r
  62                 t.addModifyListener(new ModifyListener() {\r
  63                         @Override\r
  64                         public void modifyText(ModifyEvent e) {\r
  65                                 name = t.getText();\r
  66                                 validatePage();\r
  67                         }\r
  68                 });\r
  69                 GridDataFactory.fillDefaults().grab(true, false).applyTo(t);\r
  70                 validatePage();\r
  71                 return super.createExtendedContentArea(parent);\r
  72         }\r
  73 \r
  74         @Override\r
  75         protected void handleSelected(StructuredSelection selection) {\r
  76                 super.handleSelected(selection);\r
  77                 validatePage(); \r
  78         }\r
  79 \r
  80         protected void validatePage() {\r
  81                 StructuredSelection selection = getSelectedItems();\r
  82                 String error = validateName(name);\r
  83                 if (error != null) {\r
  84                         updateStatus(new Status(Status.ERROR, PlatformUI.PLUGIN_ID, error));\r
  85                 } else if (selection.isEmpty()) {\r
  86                         updateStatus(new Status(Status.ERROR, PlatformUI.PLUGIN_ID, "No Library selected"));\r
  87                 } else {\r
  88                         // Validate that the name is not in use.\r
  89                         Resource library = (Resource) selection.getFirstElement();\r
  90                         try {\r
  91                                 Map<String, Resource> children = Simantics.sync(new UnescapedChildMapOfResource(library));\r
  92                                 if (children.containsKey(name)) {\r
  93                                         updateStatus(new Status(Status.ERROR, PlatformUI.PLUGIN_ID, "Name is already in use."));\r
  94                                 } else {\r
  95                                         updateStatus(new Status(Status.OK, Activator.PLUGIN_ID, ""));\r
  96                                 }\r
  97                         } catch (DatabaseException e) {\r
  98                                 updateStatus(new Status(Status.ERROR, PlatformUI.PLUGIN_ID, "Failed to check validity of name. See error log.", e));\r
  99                         }\r
 100                 }\r
 101         }\r
 102 \r
 103         protected String validateName(String name) {\r
 104                 if (name.trim().isEmpty())\r
 105                         return "Name cannot be empty";\r
 106                 if (name.startsWith("."))\r
 107                         return "Name cannot begin with a dot";\r
 108                 return null;\r
 109         }\r
 110 \r
 111         public String getName() {\r
 112                 return name;\r
 113         }\r
 114 \r
 115 }