org.argeo.cms.e4.rap/src/org/argeo/cms/e4/rap/parts/HtmlEditor.java

   1 package org.argeo.cms.e4.rap.parts;
   2
   3 import java.io.IOException;
   4 import java.nio.charset.StandardCharsets;
   5
   6 import javax.annotation.PostConstruct;
   7
   8 import org.apache.commons.io.IOUtils;
   9 import org.argeo.cms.CmsException;
  10 import org.argeo.cms.util.CmsUtils;
  11 import org.eclipse.nebula.widgets.richtext.RichTextEditor;
  12 import org.eclipse.nebula.widgets.richtext.RichTextEditorConfiguration;
  13 import org.eclipse.swt.SWT;
  14 import org.eclipse.swt.browser.Browser;
  15 import org.eclipse.swt.events.SelectionAdapter;
  16 import org.eclipse.swt.events.SelectionEvent;
  17 import org.eclipse.swt.graphics.Color;
  18 import org.eclipse.swt.layout.GridData;
  19 import org.eclipse.swt.layout.GridLayout;
  20 import org.eclipse.swt.widgets.Button;
  21 import org.eclipse.swt.widgets.Composite;
  22 import org.eclipse.swt.widgets.Display;
  23 import org.eclipse.swt.widgets.Shell;
  24 import org.eclipse.swt.widgets.Text;
  25
  26 public class HtmlEditor {
  27
  28         @PostConstruct
  29         public void createUI(Composite parent) {
  30                 String toolbarGroups;
  31                 String removeButtons;
  32                 try {
  33                         toolbarGroups = IOUtils.toString(HtmlEditor.class.getResourceAsStream("CkEditor-toolbarGroups.json"),
  34                                         StandardCharsets.UTF_8);
  35                         removeButtons = IOUtils.toString(HtmlEditor.class.getResourceAsStream("CkEditor-removeButtons.js"),
  36                                         StandardCharsets.UTF_8);
  37                 } catch (IOException e) {
  38                         throw new CmsException("Cannot configure toolbar", e);
  39                 }
  40 //              System.out.println(toolbarGroups);
  41 //              System.out.println(removeButtons);
  42                 RichTextEditorConfiguration richTextEditorConfig = new RichTextEditorConfiguration();
  43                 richTextEditorConfig.setOption(RichTextEditorConfiguration.TOOLBAR_GROUPS, toolbarGroups);
  44                 richTextEditorConfig.setOption(RichTextEditorConfiguration.REMOVE_BUTTONS, removeButtons);
  45 //              richTextEditorConfig.setRemoveStyles(false);
  46 //              richTextEditorConfig.setRemovePasteFromWord(true);
  47 //              richTextEditorConfig.setRemovePasteText(false);
  48
  49 //              richTextEditorConfig.setToolbarCollapsible(true);
  50 //              richTextEditorConfig.setToolbarInitialExpanded(false);
  51
  52                 final Display display = parent.getDisplay();
  53                 Composite composite = new Composite(parent, SWT.NONE);
  54 //              composite.setLayoutData(new Fill);
  55                 composite.setLayout(new GridLayout());
  56                 final RichTextEditor richTextEditor = new RichTextEditor(composite, richTextEditorConfig, SWT.BORDER);
  57                 richTextEditor.setText("<a href='http://googl.com'>Google</a>");
  58                 GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true);
  59                 richTextEditor.setLayoutData(layoutData);
  60                 richTextEditor.setBackground(new Color(display, 247, 247, 247));
  61                 Composite toolbar = new Composite(composite, SWT.NONE);
  62                 toolbar.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
  63                 toolbar.setLayout(new GridLayout(3, false));
  64                 Button showContent = new Button(toolbar, SWT.PUSH);
  65                 showContent.setText("Show Content");
  66                 showContent.addSelectionListener(new SelectionAdapter() {
  67                         @Override
  68                         public void widgetSelected(SelectionEvent e) {
  69                                 showContent(parent, richTextEditor, false);
  70                         }
  71                 });
  72                 Button showSource = new Button(toolbar, SWT.PUSH);
  73                 showSource.setText("Show Source");
  74                 showSource.addSelectionListener(new SelectionAdapter() {
  75                         @Override
  76                         public void widgetSelected(SelectionEvent e) {
  77                                 showContent(parent, richTextEditor, true);
  78                         }
  79                 });
  80                 Button clearBtn = new Button(toolbar, SWT.NONE);
  81                 clearBtn.setText("Clear");
  82                 clearBtn.addSelectionListener(new SelectionAdapter() {
  83                         @Override
  84                         public void widgetSelected(SelectionEvent e) {
  85                                 richTextEditor.setText("");
  86                         }
  87                 });
  88
  89         }
  90
  91         private static void showContent(Composite parent, RichTextEditor editor, boolean source) {
  92                 int style = SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL;
  93                 final Shell content = new Shell(parent.getShell(), style);
  94                 content.setLayout(new GridLayout(1, true));
  95                 String text = editor.getText();
  96                 if (source) {
  97                         content.setText("Rich Text Source");
  98                         Text viewer = new Text(content, SWT.MULTI | SWT.WRAP);
  99                         viewer.setLayoutData(new GridData(400, 400));
 100                         viewer.setText(text);
 101                         viewer.setEditable(false);
 102                 } else {
 103                         content.setText("Rich Text");
 104                         Browser viewer = new Browser(content, SWT.NONE);
 105                         viewer.setLayoutData(new GridData(400, 400));
 106                         viewer.setText(text);
 107                         viewer.setEnabled(false);
 108                 }
 109                 Button ok = new Button(content, SWT.PUSH);
 110                 ok.setLayoutData(new GridData(SWT.RIGHT, SWT.BOTTOM, false, false));
 111                 ok.setText("OK");
 112                 ok.addSelectionListener(new SelectionAdapter() {
 113                         @Override
 114                         public void widgetSelected(SelectionEvent e) {
 115                                 content.dispose();
 116                         }
 117                 });
 118                 content.setDefaultButton(ok);
 119                 content.pack();
 120                 Display display = parent.getDisplay();
 121                 int left = (display.getClientArea().width / 2) - (content.getBounds().width / 2);
 122                 content.setLocation(left, 40);
 123                 content.open();
 124                 ok.setFocus();
 125         }
 126
 127 }