server/plugins/org.argeo.jcr.ui.explorer/src/main/java/org/argeo/jcr/ui/explorer/editors/GenericNodePage.java

   1 package org.argeo.jcr.ui.explorer.editors;
   2
   3 import java.text.DateFormat;
   4 import java.text.SimpleDateFormat;
   5 import java.util.ArrayList;
   6 import java.util.Arrays;
   7 import java.util.List;
   8 import java.util.ListIterator;
   9
  10 import javax.jcr.Node;
  11 import javax.jcr.Property;
  12 import javax.jcr.PropertyIterator;
  13 import javax.jcr.PropertyType;
  14 import javax.jcr.RepositoryException;
  15
  16 import org.argeo.ArgeoException;
  17 import org.argeo.jcr.JcrUtils;
  18 import org.argeo.jcr.ui.explorer.JcrExplorerConstants;
  19 import org.eclipse.swt.events.ModifyEvent;
  20 import org.eclipse.swt.events.ModifyListener;
  21 import org.eclipse.swt.layout.GridData;
  22 import org.eclipse.swt.layout.GridLayout;
  23 import org.eclipse.swt.widgets.Composite;
  24 import org.eclipse.swt.widgets.Control;
  25 import org.eclipse.swt.widgets.Text;
  26 import org.eclipse.ui.forms.AbstractFormPart;
  27 import org.eclipse.ui.forms.IManagedForm;
  28 import org.eclipse.ui.forms.editor.FormEditor;
  29 import org.eclipse.ui.forms.editor.FormPage;
  30 import org.eclipse.ui.forms.widgets.FormToolkit;
  31 import org.eclipse.ui.forms.widgets.ScrolledForm;
  32
  33 /**
  34  * Main node editor page. Lists all properties of the current node and enable
  35  * access and editing for some of them.
  36  */
  37
  38 public class GenericNodePage extends FormPage implements JcrExplorerConstants {
  39         // private final static Log log = LogFactory.getLog(GenericNodePage.class);
  40
  41         // local constants
  42         private final static String JCR_PROPERTY_NAME = "jcr:name";
  43
  44         // Utils
  45         protected DateFormat timeFormatter = new SimpleDateFormat(DATE_TIME_FORMAT);
  46
  47         // Main business Objects
  48         private Node currentNode;
  49
  50         // This page widgets
  51         private FormToolkit tk;
  52         private List<Control> modifyableProperties = new ArrayList<Control>();
  53
  54         public GenericNodePage(FormEditor editor, String title, Node currentNode) {
  55                 super(editor, "id", title);
  56                 this.currentNode = currentNode;
  57         }
  58
  59         protected void createFormContent(IManagedForm managedForm) {
  60                 tk = managedForm.getToolkit();
  61                 ScrolledForm form = managedForm.getForm();
  62                 GridLayout twt = new GridLayout(3, false);
  63                 twt.marginWidth = twt.marginHeight = 5;
  64
  65                 form.getBody().setLayout(twt);
  66                 createPropertiesPart(form.getBody());
  67         }
  68
  69         private void createPropertiesPart(Composite parent) {
  70                 try {
  71
  72                         PropertyIterator pi = currentNode.getProperties();
  73
  74                         // Initializes form part
  75                         AbstractFormPart part = new AbstractFormPart() {
  76                                 public void commit(boolean onSave) {
  77                                         try {
  78                                                 if (onSave) {
  79                                                         ListIterator<Control> it = modifyableProperties
  80                                                                         .listIterator();
  81                                                         while (it.hasNext()) {
  82                                                                 // we only support Text controls for the time
  83                                                                 // being
  84                                                                 Text curControl = (Text) it.next();
  85                                                                 String value = curControl.getText();
  86                                                                 currentNode.setProperty((String) curControl
  87                                                                                 .getData(JCR_PROPERTY_NAME), value);
  88                                                         }
  89
  90                                                         // We only commit when onSave = true,
  91                                                         // thus it is still possible to save after a tab
  92                                                         // change.
  93                                                         super.commit(onSave);
  94                                                 }
  95                                         } catch (RepositoryException re) {
  96                                                 throw new ArgeoException(
  97                                                                 "Unexpected error while saving properties", re);
  98                                         }
  99                                 }
 100                         };
 101
 102                         while (pi.hasNext()) {
 103                                 Property prop = pi.nextProperty();
 104                                 addPropertyLine(parent, part, prop);
 105                         }
 106
 107                         getManagedForm().addPart(part);
 108                 } catch (RepositoryException re) {
 109                         throw new ArgeoException(
 110                                         "Error during creation of network details section", re);
 111                 }
 112
 113         }
 114
 115         private void addPropertyLine(Composite parent, AbstractFormPart part,
 116                         Property prop) {
 117                 try {
 118                         tk.createLabel(parent, prop.getName());
 119                         tk.createLabel(parent,
 120                                         "[" + JcrUtils.getPropertyDefinitionAsString(prop) + "]");
 121
 122                         if (prop.getDefinition().isProtected()) {
 123                                 tk.createLabel(parent, formatReadOnlyPropertyValue(prop));
 124                         } else
 125                                 addModifyableValueWidget(parent, part, prop);
 126                 } catch (RepositoryException re) {
 127                         throw new ArgeoException("Cannot get property " + prop, re);
 128                 }
 129         }
 130
 131         private String formatReadOnlyPropertyValue(Property prop) {
 132                 try {
 133                         String strValue;
 134
 135                         if (prop.getType() == PropertyType.BINARY)
 136                                 strValue = "<binary>";
 137                         else if (prop.isMultiple())
 138                                 strValue = Arrays.asList(prop.getValues()).toString();
 139                         else if (prop.getType() == PropertyType.DATE)
 140                                 strValue = timeFormatter.format(prop.getValue().getDate()
 141                                                 .getTime());
 142                         else
 143                                 strValue = prop.getValue().getString();
 144
 145                         return strValue;
 146                 } catch (RepositoryException re) {
 147                         throw new ArgeoException(
 148                                         "Unexpected error while formatting read only property value",
 149                                         re);
 150                 }
 151         }
 152
 153         private Control addModifyableValueWidget(Composite parent,
 154                         AbstractFormPart part, Property prop) {
 155                 GridData gd;
 156                 try {
 157                         if (prop.getType() == PropertyType.STRING) {
 158                                 Text txt = tk.createText(parent, prop.getString());
 159                                 gd = new GridData(GridData.FILL_HORIZONTAL);
 160                                 txt.setLayoutData(gd);
 161                                 txt.addModifyListener(new ModifiedFieldListener(part));
 162                                 txt.setData(JCR_PROPERTY_NAME, prop.getName());
 163                                 modifyableProperties.add(txt);
 164                         } else {
 165                                 // unsupported property type for editing, we create a read only
 166                                 // label.
 167                                 return tk
 168                                                 .createLabel(parent, formatReadOnlyPropertyValue(prop));
 169                         }
 170                         return null;
 171                 } catch (RepositoryException re) {
 172                         throw new ArgeoException(
 173                                         "Unexpected error while formatting read only property value",
 174                                         re);
 175                 }
 176
 177         }
 178
 179         //
 180         // LISTENERS
 181         //
 182
 183         private class ModifiedFieldListener implements ModifyListener {
 184
 185                 private AbstractFormPart formPart;
 186
 187                 public ModifiedFieldListener(AbstractFormPart generalPart) {
 188                         this.formPart = generalPart;
 189                 }
 190
 191                 public void modifyText(ModifyEvent e) {
 192                         formPart.markDirty();
 193                 }
 194         }
 195
 196 }