org.argeo.cms.ui/src/org/argeo/cms/text/TextEditorHeader.java

   1 package org.argeo.cms.text;
   2
   3 import java.util.Observable;
   4 import java.util.Observer;
   5
   6 import org.argeo.cms.ui.CmsEditable;
   7 import org.argeo.cms.util.CmsUtils;
   8 import org.eclipse.swt.SWT;
   9 import org.eclipse.swt.events.SelectionEvent;
  10 import org.eclipse.swt.events.SelectionListener;
  11 import org.eclipse.swt.widgets.Button;
  12 import org.eclipse.swt.widgets.Composite;
  13
  14 /** Adds editing capabilities to a page editing text */
  15 public class TextEditorHeader implements SelectionListener, Observer {
  16         private static final long serialVersionUID = 4186756396045701253L;
  17
  18         private final CmsEditable cmsEditable;
  19         private Button publish;
  20
  21         private Composite parent;
  22         private Composite display;
  23         private Object layoutData;
  24
  25         public TextEditorHeader(CmsEditable cmsEditable, Composite parent, int style) {
  26                 this.cmsEditable = cmsEditable;
  27                 this.parent = parent;
  28                 if (this.cmsEditable instanceof Observable)
  29                         ((Observable) this.cmsEditable).addObserver(this);
  30                 refresh();
  31         }
  32
  33         protected void refresh() {
  34                 if (display != null && !display.isDisposed())
  35                         display.dispose();
  36                 display = null;
  37                 publish = null;
  38                 if (cmsEditable.isEditing()) {
  39                         display = new Composite(parent, SWT.NONE);
  40                         // display.setBackgroundMode(SWT.INHERIT_NONE);
  41                         display.setLayoutData(layoutData);
  42                         display.setLayout(CmsUtils.noSpaceGridLayout());
  43                         CmsUtils.style(display, TextStyles.TEXT_EDITOR_HEADER);
  44                         publish = new Button(display, SWT.FLAT | SWT.PUSH);
  45                         publish.setText(getPublishButtonLabel());
  46                         CmsUtils.style(publish, TextStyles.TEXT_EDITOR_HEADER);
  47                         publish.addSelectionListener(this);
  48                         display.moveAbove(null);
  49                 }
  50                 parent.layout();
  51         }
  52
  53         private String getPublishButtonLabel() {
  54                 if (cmsEditable.isEditing())
  55                         return "Publish";
  56                 else
  57                         return "Edit";
  58         }
  59
  60         @Override
  61         public void widgetSelected(SelectionEvent e) {
  62                 if (e.getSource() == publish) {
  63                         if (cmsEditable.isEditing()) {
  64                                 cmsEditable.stopEditing();
  65                         } else {
  66                                 cmsEditable.startEditing();
  67                         }
  68                         // publish.setText(getPublishButtonLabel());
  69                 }
  70         }
  71
  72         @Override
  73         public void widgetDefaultSelected(SelectionEvent e) {
  74         }
  75
  76         @Override
  77         public void update(Observable o, Object arg) {
  78                 if (o == cmsEditable) {
  79                         // publish.setText(getPublishButtonLabel());
  80                         refresh();
  81                 }
  82         }
  83
  84         public void setLayoutData(Object layoutData) {
  85                 this.layoutData = layoutData;
  86                 if (display != null && !display.isDisposed())
  87                         display.setLayoutData(layoutData);
  88         }
  89
  90 }