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

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