org.argeo.cms/src/org/argeo/cms/internal/text/AbstractTextViewer.java

   1 package org.argeo.cms.internal.text;
   2
   3 import static javax.jcr.Property.JCR_TITLE;
   4 import static org.argeo.cms.util.CmsUtils.fillWidth;
   5
   6 import java.util.ArrayList;
   7 import java.util.Iterator;
   8 import java.util.Map;
   9 import java.util.Observer;
  10
  11 import javax.jcr.Item;
  12 import javax.jcr.Node;
  13 import javax.jcr.NodeIterator;
  14 import javax.jcr.Property;
  15 import javax.jcr.RepositoryException;
  16 import javax.jcr.Session;
  17 import javax.jcr.nodetype.NodeType;
  18
  19 import org.apache.commons.logging.Log;
  20 import org.apache.commons.logging.LogFactory;
  21 import org.argeo.cms.CmsEditable;
  22 import org.argeo.cms.CmsException;
  23 import org.argeo.cms.CmsImageManager;
  24 import org.argeo.cms.CmsNames;
  25 import org.argeo.cms.CmsSession;
  26 import org.argeo.cms.CmsTypes;
  27 import org.argeo.cms.text.Img;
  28 import org.argeo.cms.text.Paragraph;
  29 import org.argeo.cms.text.TextInterpreter;
  30 import org.argeo.cms.text.TextSection;
  31 import org.argeo.cms.util.CmsUtils;
  32 import org.argeo.cms.viewers.AbstractPageViewer;
  33 import org.argeo.cms.viewers.EditablePart;
  34 import org.argeo.cms.viewers.NodePart;
  35 import org.argeo.cms.viewers.PropertyPart;
  36 import org.argeo.cms.viewers.Section;
  37 import org.argeo.cms.viewers.SectionPart;
  38 import org.argeo.cms.widgets.EditableImage;
  39 import org.argeo.cms.widgets.EditableText;
  40 import org.argeo.cms.widgets.StyledControl;
  41 import org.argeo.jcr.JcrUtils;
  42 import org.eclipse.rap.addons.fileupload.FileDetails;
  43 import org.eclipse.rap.addons.fileupload.FileUploadEvent;
  44 import org.eclipse.rap.addons.fileupload.FileUploadHandler;
  45 import org.eclipse.rap.addons.fileupload.FileUploadListener;
  46 import org.eclipse.rap.rwt.RWT;
  47 import org.eclipse.swt.SWT;
  48 import org.eclipse.swt.events.KeyEvent;
  49 import org.eclipse.swt.events.KeyListener;
  50 import org.eclipse.swt.events.MouseAdapter;
  51 import org.eclipse.swt.events.MouseEvent;
  52 import org.eclipse.swt.events.MouseListener;
  53 import org.eclipse.swt.graphics.Point;
  54 import org.eclipse.swt.widgets.Composite;
  55 import org.eclipse.swt.widgets.Control;
  56 import org.eclipse.swt.widgets.Text;
  57
  58 /** Base class for text viewers and editors. */
  59 public abstract class AbstractTextViewer extends AbstractPageViewer implements
  60                 CmsNames, KeyListener, Observer {
  61         private static final long serialVersionUID = -2401274679492339668L;
  62         private final static Log log = LogFactory.getLog(AbstractTextViewer.class);
  63
  64         private final Section mainSection;
  65
  66         private TextInterpreter textInterpreter = new TextInterpreterImpl();
  67         private CmsImageManager imageManager = CmsSession.current.get()
  68                         .getImageManager();
  69
  70         private FileUploadListener fileUploadListener;
  71         private TextContextMenu styledTools;
  72
  73         private final boolean flat;
  74
  75         protected AbstractTextViewer(Section parent, int style,
  76                         CmsEditable cmsEditable) {
  77                 super(parent, style, cmsEditable);
  78                 flat = SWT.FLAT == (style & SWT.FLAT);
  79
  80                 if (getCmsEditable().canEdit()) {
  81                         fileUploadListener = new FUL();
  82                         styledTools = new TextContextMenu(this, parent.getDisplay());
  83                 }
  84                 this.mainSection = parent;
  85                 initModelIfNeeded(mainSection.getNode());
  86                 // layout(this.mainSection);
  87         }
  88
  89         @Override
  90         public Control getControl() {
  91                 return mainSection;
  92         }
  93
  94         protected void refresh(Control control) throws RepositoryException {
  95                 if (!(control instanceof Section))
  96                         return;
  97                 Section section = (Section) control;
  98                 if (section instanceof TextSection) {
  99                         CmsUtils.clear(section);
 100                         Node node = section.getNode();
 101                         TextSection textSection = (TextSection) section;
 102                         if (node.hasProperty(Property.JCR_TITLE)) {
 103                                 if (section.getHeader() == null)
 104                                         section.createHeader();
 105                                 if (node.hasProperty(Property.JCR_TITLE)) {
 106                                         SectionTitle title = newSectionTitle(textSection, node);
 107                                         title.setLayoutData(CmsUtils.fillWidth());
 108                                         updateContent(title);
 109                                 }
 110                         }
 111
 112                         for (NodeIterator ni = node.getNodes(CMS_P); ni.hasNext();) {
 113                                 Node child = ni.nextNode();
 114                                 final SectionPart sectionPart;
 115                                 if (child.isNodeType(CmsTypes.CMS_IMAGE)
 116                                                 || child.isNodeType(NodeType.NT_FILE)) {
 117                                         sectionPart = newImg(textSection, child);
 118                                 } else if (child.isNodeType(CmsTypes.CMS_STYLED)) {
 119                                         sectionPart = newParagraph(textSection, child);
 120                                 } else {
 121                                         sectionPart = newSectionPart(textSection, child);
 122                                         if (sectionPart == null)
 123                                                 throw new CmsException("Unsupported node " + child);
 124                                         // TODO list node types in exception
 125                                 }
 126                                 if (sectionPart instanceof Control)
 127                                         ((Control) sectionPart).setLayoutData(CmsUtils.fillWidth());
 128                         }
 129
 130                         if (!flat)
 131                                 for (NodeIterator ni = section.getNode().getNodes(CMS_H); ni
 132                                                 .hasNext();) {
 133                                         Node child = ni.nextNode();
 134                                         if (child.isNodeType(CmsTypes.CMS_SECTION)) {
 135                                                 TextSection newSection = new TextSection(section,
 136                                                                 SWT.NONE, child);
 137                                                 newSection.setLayoutData(CmsUtils.fillWidth());
 138                                                 refresh(newSection);
 139                                         }
 140                                 }
 141                 } else {
 142                         for (Section s : section.getSubSections().values())
 143                                 refresh(s);
 144                 }
 145                 // section.layout();
 146         }
 147
 148         /** To be overridden in order to provide additional SectionPart types */
 149         protected SectionPart newSectionPart(TextSection textSection, Node node) {
 150                 return null;
 151         }
 152
 153         // CRUD
 154         protected Paragraph newParagraph(TextSection parent, Node node)
 155                         throws RepositoryException {
 156                 Paragraph paragraph = new Paragraph(parent, parent.getStyle(), node);
 157                 updateContent(paragraph);
 158                 paragraph.setLayoutData(fillWidth());
 159                 paragraph.setMouseListener(getMouseListener());
 160                 return paragraph;
 161         }
 162
 163         protected Img newImg(TextSection parent, Node node)
 164                         throws RepositoryException {
 165                 Img img = new Img(parent, parent.getStyle(), node) {
 166                         private static final long serialVersionUID = 1297900641952417540L;
 167
 168                         @Override
 169                         protected void setContainerLayoutData(Composite composite) {
 170                                 composite.setLayoutData(CmsUtils.grabWidth(SWT.CENTER,
 171                                                 SWT.DEFAULT));
 172                         }
 173
 174                         @Override
 175                         protected void setControlLayoutData(Control control) {
 176                                 control.setLayoutData(CmsUtils.grabWidth(SWT.CENTER,
 177                                                 SWT.DEFAULT));
 178                         }
 179                 };
 180                 img.setLayoutData(CmsUtils.grabWidth(SWT.CENTER, SWT.DEFAULT));
 181                 updateContent(img);
 182                 img.setMouseListener(getMouseListener());
 183                 return img;
 184         }
 185
 186         protected SectionTitle newSectionTitle(TextSection parent, Node node)
 187                         throws RepositoryException {
 188                 SectionTitle title = new SectionTitle(parent.getHeader(),
 189                                 parent.getStyle(), node.getProperty(JCR_TITLE));
 190                 updateContent(title);
 191                 title.setMouseListener(getMouseListener());
 192                 return title;
 193         }
 194
 195         protected SectionTitle prepareSectionTitle(Section newSection,
 196                         String titleText) throws RepositoryException {
 197                 Node sectionNode = newSection.getNode();
 198                 if (!sectionNode.hasProperty(JCR_TITLE))
 199                         sectionNode.setProperty(Property.JCR_TITLE, "");
 200                 getTextInterpreter().write(sectionNode.getProperty(Property.JCR_TITLE),
 201                                 titleText);
 202                 if (newSection.getHeader() == null)
 203                         newSection.createHeader();
 204                 SectionTitle sectionTitle = newSectionTitle((TextSection) newSection,
 205                                 sectionNode);
 206                 return sectionTitle;
 207         }
 208
 209         protected void updateContent(EditablePart part) throws RepositoryException {
 210                 if (part instanceof SectionPart) {
 211                         SectionPart sectionPart = (SectionPart) part;
 212                         Node partNode = sectionPart.getNode();
 213
 214                         if (part instanceof StyledControl
 215                                         && (sectionPart.getSection() instanceof TextSection)) {
 216                                 TextSection section = (TextSection) sectionPart.getSection();
 217                                 StyledControl styledControl = (StyledControl) part;
 218                                 if (partNode.isNodeType(CmsTypes.CMS_STYLED)) {
 219                                         String style = partNode.hasProperty(CMS_STYLE) ? partNode
 220                                                         .getProperty(CMS_STYLE).getString() : section
 221                                                         .getDefaultTextStyle();
 222                                         styledControl.setStyle(style);
 223                                 }
 224                         }
 225                         // use control AFTER setting style, since it may have been reset
 226
 227                         if (part instanceof EditableText) {
 228                                 EditableText paragraph = (EditableText) part;
 229                                 if (paragraph == getEdited())
 230                                         paragraph.setText(textInterpreter.read(partNode));
 231                                 else
 232                                         paragraph.setText(textInterpreter.raw(partNode));
 233                         } else if (part instanceof EditableImage) {
 234                                 EditableImage editableImage = (EditableImage) part;
 235                                 imageManager.load(partNode, part.getControl(),
 236                                                 editableImage.getPreferredImageSize());
 237                         }
 238                 } else if (part instanceof SectionTitle) {
 239                         SectionTitle title = (SectionTitle) part;
 240                         title.setStyle(title.getSection().getTitleStyle());
 241                         // use control AFTER setting style
 242                         if (title == getEdited())
 243                                 title.setText(textInterpreter.read(title.getProperty()));
 244                         else
 245                                 title.setText(textInterpreter.raw(title.getProperty()));
 246                 }
 247         }
 248
 249         // OVERRIDDEN FROM PARENT VIEWER
 250         @Override
 251         protected void save(EditablePart part) throws RepositoryException {
 252                 if (part instanceof EditableText) {
 253                         EditableText et = (EditableText) part;
 254                         String text = ((Text) et.getControl()).getText();
 255
 256                         String[] lines = text.split("[\r\n]+");
 257                         assert lines.length != 0;
 258                         saveLine(part, lines[0]);
 259                         if (lines.length > 1) {
 260                                 ArrayList<Control> toLayout = new ArrayList<Control>();
 261                                 if (part instanceof Paragraph) {
 262                                         Paragraph currentParagraph = (Paragraph) et;
 263                                         Section section = currentParagraph.getSection();
 264                                         Node sectionNode = section.getNode();
 265                                         Node currentParagraphN = currentParagraph.getNode();
 266                                         for (int i = 1; i < lines.length; i++) {
 267                                                 Node newNode = sectionNode.addNode(CMS_P);
 268                                                 newNode.addMixin(CmsTypes.CMS_STYLED);
 269                                                 saveLine(newNode, lines[i]);
 270                                                 // second node was create as last, if it is not the next
 271                                                 // one, it
 272                                                 // means there are some in between and we can take the
 273                                                 // one at
 274                                                 // index+1 for the re-order
 275                                                 if (newNode.getIndex() > currentParagraphN.getIndex() + 1) {
 276                                                         sectionNode.orderBefore(p(newNode.getIndex()),
 277                                                                         p(currentParagraphN.getIndex() + 1));
 278                                                 }
 279                                                 Paragraph newParagraph = newParagraph(
 280                                                                 (TextSection) section, newNode);
 281                                                 newParagraph.moveBelow(currentParagraph);
 282                                                 toLayout.add(newParagraph);
 283
 284                                                 currentParagraph = newParagraph;
 285                                                 currentParagraphN = newNode;
 286                                         }
 287                                         persistChanges(sectionNode);
 288                                 }
 289                                 // TODO or rather return the created paragarphs?
 290                                 layout(toLayout.toArray(new Control[toLayout.size()]));
 291                         }
 292                 }
 293         }
 294
 295         protected void saveLine(EditablePart part, String line) {
 296                 if (part instanceof NodePart) {
 297                         saveLine(((NodePart) part).getNode(), line);
 298                 } else if (part instanceof PropertyPart) {
 299                         saveLine(((PropertyPart) part).getProperty(), line);
 300                 } else {
 301                         throw new CmsException("Unsupported part " + part);
 302                 }
 303         }
 304
 305         protected void saveLine(Item item, String line) {
 306                 line = line.trim();
 307                 textInterpreter.write(item, line);
 308         }
 309
 310         @Override
 311         protected void prepare(EditablePart part, Object caretPosition) {
 312                 Control control = part.getControl();
 313                 if (control instanceof Text) {
 314                         Text text = (Text) control;
 315                         if (caretPosition != null)
 316                                 if (caretPosition instanceof Integer)
 317                                         text.setSelection((Integer) caretPosition);
 318                                 else if (caretPosition instanceof Point) {
 319                                         // TODO find a way to position the caret at the right place
 320                                 }
 321                         text.setData(RWT.ACTIVE_KEYS, new String[] { "BACKSPACE", "ESC",
 322                                         "TAB", "SHIFT+TAB", "ALT+ARROW_LEFT", "ALT+ARROW_RIGHT",
 323                                         "ALT+ARROW_UP", "ALT+ARROW_DOWN", "RETURN", "CTRL+RETURN",
 324                                         "ENTER", "DELETE" });
 325                         text.setData(RWT.CANCEL_KEYS, new String[] { "RETURN",
 326                                         "ALT+ARROW_LEFT", "ALT+ARROW_RIGHT" });
 327                         text.addKeyListener(this);
 328                 } else if (part instanceof Img) {
 329                         ((Img) part).setFileUploadListener(fileUploadListener);
 330                 }
 331         }
 332
 333         // REQUIRED BY CONTEXT MENU
 334         void setParagraphStyle(Paragraph paragraph, String style) {
 335                 try {
 336                         Node paragraphNode = paragraph.getNode();
 337                         paragraphNode.setProperty(CMS_STYLE, style);
 338                         persistChanges(paragraphNode);
 339                         updateContent(paragraph);
 340                         layout(paragraph);
 341                 } catch (RepositoryException e1) {
 342                         throw new CmsException("Cannot set style " + style + " on "
 343                                         + paragraph, e1);
 344                 }
 345         }
 346
 347         void deletePart(SectionPart paragraph) {
 348                 try {
 349                         Node paragraphNode = paragraph.getNode();
 350                         Section section = paragraph.getSection();
 351                         Session session = paragraphNode.getSession();
 352                         paragraphNode.remove();
 353                         session.save();
 354                         if (paragraph instanceof Control)
 355                                 ((Control) paragraph).dispose();
 356                         layout(section);
 357                 } catch (RepositoryException e1) {
 358                         throw new CmsException("Cannot delete " + paragraph, e1);
 359                 }
 360         }
 361
 362         String getRawParagraphText(Paragraph paragraph) {
 363                 return textInterpreter.raw(paragraph.getNode());
 364         }
 365
 366         // COMMANDS
 367         protected void splitEdit() {
 368                 checkEdited();
 369                 try {
 370                         if (getEdited() instanceof Paragraph) {
 371                                 Paragraph paragraph = (Paragraph) getEdited();
 372                                 Text text = (Text) paragraph.getControl();
 373                                 int caretPosition = text.getCaretPosition();
 374                                 String txt = text.getText();
 375                                 String first = txt.substring(0, caretPosition);
 376                                 String second = txt.substring(caretPosition);
 377                                 Node firstNode = paragraph.getNode();
 378                                 Node sectionNode = firstNode.getParent();
 379                                 firstNode.setProperty(CMS_CONTENT, first);
 380                                 Node secondNode = sectionNode.addNode(CMS_P);
 381                                 secondNode.addMixin(CmsTypes.CMS_STYLED);
 382                                 // second node was create as last, if it is not the next one, it
 383                                 // means there are some in between and we can take the one at
 384                                 // index+1 for the re-order
 385                                 if (secondNode.getIndex() > firstNode.getIndex() + 1) {
 386                                         sectionNode.orderBefore(p(secondNode.getIndex()),
 387                                                         p(firstNode.getIndex() + 1));
 388                                 }
 389
 390                                 // if we die in between, at least we still have the whole text
 391                                 // in the first node
 392                                 try {
 393                                         textInterpreter.write(secondNode, second);
 394                                         textInterpreter.write(firstNode, first);
 395                                 } catch (Exception e) {
 396                                         // so that no additional nodes are created:
 397                                         JcrUtils.discardUnderlyingSessionQuietly(firstNode);
 398                                         throw e;
 399                                 }
 400
 401                                 persistChanges(firstNode);
 402
 403                                 Paragraph secondParagraph = paragraphSplitted(paragraph,
 404                                                 secondNode);
 405                                 edit(secondParagraph, 0);
 406                         } else if (getEdited() instanceof SectionTitle) {
 407                                 SectionTitle sectionTitle = (SectionTitle) getEdited();
 408                                 Text text = (Text) sectionTitle.getControl();
 409                                 String txt = text.getText();
 410                                 int caretPosition = text.getCaretPosition();
 411                                 Section section = sectionTitle.getSection();
 412                                 Node sectionNode = section.getNode();
 413                                 Node paragraphNode = sectionNode.addNode(CMS_P);
 414                                 paragraphNode.addMixin(CmsTypes.CMS_STYLED);
 415                                 textInterpreter.write(paragraphNode,
 416                                                 txt.substring(caretPosition));
 417                                 textInterpreter.write(
 418                                                 sectionNode.getProperty(Property.JCR_TITLE),
 419                                                 txt.substring(0, caretPosition));
 420                                 sectionNode.orderBefore(p(paragraphNode.getIndex()), p(1));
 421                                 persistChanges(sectionNode);
 422
 423                                 Paragraph paragraph = sectionTitleSplitted(sectionTitle,
 424                                                 paragraphNode);
 425                                 // section.layout();
 426                                 edit(paragraph, 0);
 427                         }
 428                 } catch (RepositoryException e) {
 429                         throw new CmsException("Cannot split " + getEdited(), e);
 430                 }
 431         }
 432
 433         protected void mergeWithPrevious() {
 434                 checkEdited();
 435                 try {
 436                         Paragraph paragraph = (Paragraph) getEdited();
 437                         Text text = (Text) paragraph.getControl();
 438                         String txt = text.getText();
 439                         Node paragraphNode = paragraph.getNode();
 440                         if (paragraphNode.getIndex() == 1)
 441                                 return;// do nothing
 442                         Node sectionNode = paragraphNode.getParent();
 443                         Node previousNode = sectionNode
 444                                         .getNode(p(paragraphNode.getIndex() - 1));
 445                         String previousTxt = textInterpreter.read(previousNode);
 446                         textInterpreter.write(previousNode, previousTxt + txt);
 447                         paragraphNode.remove();
 448                         persistChanges(sectionNode);
 449
 450                         Paragraph previousParagraph = paragraphMergedWithPrevious(
 451                                         paragraph, previousNode);
 452                         edit(previousParagraph, previousTxt.length());
 453                 } catch (RepositoryException e) {
 454                         throw new CmsException("Cannot stop editing", e);
 455                 }
 456         }
 457
 458         protected void mergeWithNext() {
 459                 checkEdited();
 460                 try {
 461                         Paragraph paragraph = (Paragraph) getEdited();
 462                         Text text = (Text) paragraph.getControl();
 463                         String txt = text.getText();
 464                         Node paragraphNode = paragraph.getNode();
 465                         Node sectionNode = paragraphNode.getParent();
 466                         NodeIterator paragraphNodes = sectionNode.getNodes(CMS_P);
 467                         long size = paragraphNodes.getSize();
 468                         if (paragraphNode.getIndex() == size)
 469                                 return;// do nothing
 470                         Node nextNode = sectionNode
 471                                         .getNode(p(paragraphNode.getIndex() + 1));
 472                         String nextTxt = textInterpreter.read(nextNode);
 473                         textInterpreter.write(paragraphNode, txt + nextTxt);
 474
 475                         Section section = paragraph.getSection();
 476                         Paragraph removed = (Paragraph) section.getSectionPart(nextNode
 477                                         .getIdentifier());
 478
 479                         nextNode.remove();
 480                         persistChanges(sectionNode);
 481
 482                         paragraphMergedWithNext(paragraph, removed);
 483                         edit(paragraph, txt.length());
 484                 } catch (RepositoryException e) {
 485                         throw new CmsException("Cannot stop editing", e);
 486                 }
 487         }
 488
 489         protected synchronized void upload(EditablePart part) {
 490                 try {
 491                         if (part instanceof SectionPart) {
 492                                 SectionPart sectionPart = (SectionPart) part;
 493                                 Node partNode = sectionPart.getNode();
 494                                 int partIndex = partNode.getIndex();
 495                                 Section section = sectionPart.getSection();
 496                                 Node sectionNode = section.getNode();
 497
 498                                 if (part instanceof Paragraph) {
 499                                         Node newNode = sectionNode.addNode(CMS_P, NodeType.NT_FILE);
 500                                         newNode.addNode(Node.JCR_CONTENT, NodeType.NT_RESOURCE);
 501                                         JcrUtils.copyBytesAsFile(sectionNode,
 502                                                         p(newNode.getIndex()), new byte[0]);
 503                                         if (partIndex < newNode.getIndex() - 1) {
 504                                                 // was not last
 505                                                 sectionNode.orderBefore(p(newNode.getIndex()),
 506                                                                 p(partIndex - 1));
 507                                         }
 508                                         // sectionNode.orderBefore(p(partNode.getIndex()),
 509                                         // p(newNode.getIndex()));
 510                                         persistChanges(sectionNode);
 511                                         Img img = newImg((TextSection) section, newNode);
 512                                         edit(img, null);
 513                                         layout(img.getControl());
 514                                 } else if (part instanceof Img) {
 515                                         if (getEdited() == part)
 516                                                 return;
 517                                         edit(part, null);
 518                                         layout(part.getControl());
 519                                 }
 520                         }
 521                 } catch (RepositoryException e) {
 522                         throw new CmsException("Cannot upload", e);
 523                 }
 524         }
 525
 526         protected void deepen() {
 527                 if (flat)
 528                         return;
 529                 checkEdited();
 530                 try {
 531                         if (getEdited() instanceof Paragraph) {
 532                                 Paragraph paragraph = (Paragraph) getEdited();
 533                                 Text text = (Text) paragraph.getControl();
 534                                 String txt = text.getText();
 535                                 Node paragraphNode = paragraph.getNode();
 536                                 Section section = paragraph.getSection();
 537                                 Node sectionNode = section.getNode();
 538                                 // main title
 539                                 if (section == mainSection && section instanceof TextSection
 540                                                 && paragraphNode.getIndex() == 1
 541                                                 && !sectionNode.hasProperty(JCR_TITLE)) {
 542                                         SectionTitle sectionTitle = prepareSectionTitle(section,
 543                                                         txt);
 544                                         edit(sectionTitle, 0);
 545                                         return;
 546                                 }
 547                                 Node newSectionNode = sectionNode.addNode(CMS_H,
 548                                                 CmsTypes.CMS_SECTION);
 549                                 sectionNode.orderBefore(h(newSectionNode.getIndex()), h(1));
 550
 551                                 int paragraphIndex = paragraphNode.getIndex();
 552                                 String sectionPath = sectionNode.getPath();
 553                                 String newSectionPath = newSectionNode.getPath();
 554                                 while (sectionNode.hasNode(p(paragraphIndex + 1))) {
 555                                         Node parag = sectionNode.getNode(p(paragraphIndex + 1));
 556                                         sectionNode.getSession().move(
 557                                                         sectionPath + '/' + p(paragraphIndex + 1),
 558                                                         newSectionPath + '/' + CMS_P);
 559                                         SectionPart sp = section.getSectionPart(parag
 560                                                         .getIdentifier());
 561                                         if (sp instanceof Control)
 562                                                 ((Control) sp).dispose();
 563                                 }
 564                                 // create property
 565                                 newSectionNode.setProperty(Property.JCR_TITLE, "");
 566                                 getTextInterpreter().write(
 567                                                 newSectionNode.getProperty(Property.JCR_TITLE), txt);
 568
 569                                 TextSection newSection = new TextSection(section,
 570                                                 section.getStyle(), newSectionNode);
 571                                 newSection.setLayoutData(CmsUtils.fillWidth());
 572                                 newSection.moveBelow(paragraph);
 573
 574                                 // dispose
 575                                 paragraphNode.remove();
 576                                 paragraph.dispose();
 577
 578                                 refresh(newSection);
 579                                 newSection.getParent().layout();
 580                                 layout(newSection);
 581                                 persistChanges(sectionNode);
 582                         } else if (getEdited() instanceof SectionTitle) {
 583                                 SectionTitle sectionTitle = (SectionTitle) getEdited();
 584                                 Section section = sectionTitle.getSection();
 585                                 Section parentSection = section.getParentSection();
 586                                 if (parentSection == null)
 587                                         return;// cannot deepen main section
 588                                 Node sectionN = section.getNode();
 589                                 Node parentSectionN = parentSection.getNode();
 590                                 if (sectionN.getIndex() == 1)
 591                                         return;// cannot deepen first section
 592                                 Node previousSectionN = parentSectionN.getNode(h(sectionN
 593                                                 .getIndex() - 1));
 594                                 NodeIterator subSections = previousSectionN.getNodes(CMS_H);
 595                                 int subsectionsCount = (int) subSections.getSize();
 596                                 previousSectionN.getSession().move(
 597                                                 sectionN.getPath(),
 598                                                 previousSectionN.getPath() + "/"
 599                                                                 + h(subsectionsCount + 1));
 600                                 section.dispose();
 601                                 TextSection newSection = new TextSection(section,
 602                                                 section.getStyle(), sectionN);
 603                                 refresh(newSection);
 604                                 persistChanges(previousSectionN);
 605                         }
 606                 } catch (RepositoryException e) {
 607                         throw new CmsException("Cannot deepen " + getEdited(), e);
 608                 }
 609         }
 610
 611         protected void undeepen() {
 612                 if (flat)
 613                         return;
 614                 checkEdited();
 615                 try {
 616                         if (getEdited() instanceof Paragraph) {
 617                                 upload(getEdited());
 618                         } else if (getEdited() instanceof SectionTitle) {
 619                                 SectionTitle sectionTitle = (SectionTitle) getEdited();
 620                                 Section section = sectionTitle.getSection();
 621                                 Node sectionNode = section.getNode();
 622                                 Section parentSection = section.getParentSection();
 623                                 if (parentSection == null)
 624                                         return;// cannot undeepen main section
 625
 626                                 // choose in which section to merge
 627                                 Section mergedSection;
 628                                 if (sectionNode.getIndex() == 1)
 629                                         mergedSection = section.getParentSection();
 630                                 else {
 631                                         Map<String, Section> parentSubsections = parentSection
 632                                                         .getSubSections();
 633                                         ArrayList<Section> lst = new ArrayList<Section>(
 634                                                         parentSubsections.values());
 635                                         mergedSection = lst.get(sectionNode.getIndex() - 1);
 636                                 }
 637                                 Node mergedNode = mergedSection.getNode();
 638                                 boolean mergedHasSubSections = mergedNode.hasNode(CMS_H);
 639
 640                                 // title as paragraph
 641                                 Node newParagrapheNode = mergedNode.addNode(CMS_P);
 642                                 newParagrapheNode.addMixin(CmsTypes.CMS_STYLED);
 643                                 if (mergedHasSubSections)
 644                                         mergedNode.orderBefore(p(newParagrapheNode.getIndex()),
 645                                                         h(1));
 646                                 String txt = getTextInterpreter().read(
 647                                                 sectionNode.getProperty(Property.JCR_TITLE));
 648                                 getTextInterpreter().write(newParagrapheNode, txt);
 649                                 // move
 650                                 NodeIterator paragraphs = sectionNode.getNodes(CMS_P);
 651                                 while (paragraphs.hasNext()) {
 652                                         Node p = paragraphs.nextNode();
 653                                         SectionPart sp = section.getSectionPart(p.getIdentifier());
 654                                         if (sp instanceof Control)
 655                                                 ((Control) sp).dispose();
 656                                         mergedNode.getSession().move(p.getPath(),
 657                                                         mergedNode.getPath() + '/' + CMS_P);
 658                                         if (mergedHasSubSections)
 659                                                 mergedNode.orderBefore(p(p.getIndex()), h(1));
 660                                 }
 661
 662                                 Iterator<Section> subsections = section.getSubSections()
 663                                                 .values().iterator();
 664                                 // NodeIterator sections = sectionNode.getNodes(CMS_H);
 665                                 while (subsections.hasNext()) {
 666                                         Section subsection = subsections.next();
 667                                         Node s = subsection.getNode();
 668                                         mergedNode.getSession().move(s.getPath(),
 669                                                         mergedNode.getPath() + '/' + CMS_H);
 670                                         subsection.dispose();
 671                                 }
 672
 673                                 // remove section
 674                                 section.getNode().remove();
 675                                 section.dispose();
 676
 677                                 refresh(mergedSection);
 678                                 mergedSection.getParent().layout();
 679                                 layout(mergedSection);
 680                                 persistChanges(mergedNode);
 681                         }
 682                 } catch (RepositoryException e) {
 683                         throw new CmsException("Cannot undeepen " + getEdited(), e);
 684                 }
 685         }
 686
 687         // UI CHANGES
 688         protected Paragraph paragraphSplitted(Paragraph paragraph, Node newNode)
 689                         throws RepositoryException {
 690                 Section section = paragraph.getSection();
 691                 updateContent(paragraph);
 692                 Paragraph newParagraph = newParagraph((TextSection) section, newNode);
 693                 newParagraph.setLayoutData(CmsUtils.fillWidth());
 694                 newParagraph.moveBelow(paragraph);
 695                 layout(paragraph.getControl(), newParagraph.getControl());
 696                 return newParagraph;
 697         }
 698
 699         protected Paragraph sectionTitleSplitted(SectionTitle sectionTitle,
 700                         Node newNode) throws RepositoryException {
 701                 updateContent(sectionTitle);
 702                 Paragraph newParagraph = newParagraph(sectionTitle.getSection(),
 703                                 newNode);
 704                 // we assume beforeFirst is not null since there was a sectionTitle
 705                 newParagraph.moveBelow(sectionTitle.getSection().getHeader());
 706                 layout(sectionTitle.getControl(), newParagraph.getControl());
 707                 return newParagraph;
 708         }
 709
 710         protected Paragraph paragraphMergedWithPrevious(Paragraph removed,
 711                         Node remaining) throws RepositoryException {
 712                 Section section = removed.getSection();
 713                 removed.dispose();
 714
 715                 Paragraph paragraph = (Paragraph) section.getSectionPart(remaining
 716                                 .getIdentifier());
 717                 updateContent(paragraph);
 718                 layout(paragraph.getControl());
 719                 return paragraph;
 720         }
 721
 722         protected void paragraphMergedWithNext(Paragraph remaining,
 723                         Paragraph removed) throws RepositoryException {
 724                 removed.dispose();
 725                 updateContent(remaining);
 726                 layout(remaining.getControl());
 727         }
 728
 729         // UTILITIES
 730         protected String p(Integer index) {
 731                 StringBuilder sb = new StringBuilder(6);
 732                 sb.append(CMS_P).append('[').append(index).append(']');
 733                 return sb.toString();
 734         }
 735
 736         protected String h(Integer index) {
 737                 StringBuilder sb = new StringBuilder(5);
 738                 sb.append(CMS_H).append('[').append(index).append(']');
 739                 return sb.toString();
 740         }
 741
 742         // GETTERS / SETTERS
 743         public Section getMainSection() {
 744                 return mainSection;
 745         }
 746
 747         public boolean isFlat() {
 748                 return flat;
 749         }
 750
 751         public TextInterpreter getTextInterpreter() {
 752                 return textInterpreter;
 753         }
 754
 755         // KEY LISTENER
 756         @Override
 757         public void keyPressed(KeyEvent ke) {
 758                 if (log.isTraceEnabled())
 759                         log.trace(ke);
 760
 761                 if (getEdited() == null)
 762                         return;
 763                 boolean altPressed = (ke.stateMask & SWT.ALT) != 0;
 764                 boolean shiftPressed = (ke.stateMask & SWT.SHIFT) != 0;
 765                 boolean ctrlPressed = (ke.stateMask & SWT.CTRL) != 0;
 766
 767                 try {
 768                         // Common
 769                         if (ke.keyCode == SWT.ESC) {
 770                                 cancelEdit();
 771                         } else if (ke.character == '\r') {
 772                                 splitEdit();
 773                         } else if (ke.character == 'S') {
 774                                 if (ctrlPressed)
 775                                         saveEdit();
 776                         } else if (ke.character == '\t') {
 777                                 if (!shiftPressed) {
 778                                         deepen();
 779                                 } else if (shiftPressed) {
 780                                         undeepen();
 781                                 }
 782                         } else {
 783                                 if (getEdited() instanceof Paragraph) {
 784                                         Paragraph paragraph = (Paragraph) getEdited();
 785                                         Section section = paragraph.getSection();
 786                                         if (altPressed && ke.keyCode == SWT.ARROW_RIGHT) {
 787                                                 edit(section.nextSectionPart(paragraph), 0);
 788                                         } else if (altPressed && ke.keyCode == SWT.ARROW_LEFT) {
 789                                                 edit(section.previousSectionPart(paragraph), 0);
 790                                         } else if (ke.character == SWT.BS) {
 791                                                 Text text = (Text) paragraph.getControl();
 792                                                 int caretPosition = text.getCaretPosition();
 793                                                 if (caretPosition == 0) {
 794                                                         mergeWithPrevious();
 795                                                 }
 796                                         } else if (ke.character == SWT.DEL) {
 797                                                 Text text = (Text) paragraph.getControl();
 798                                                 int caretPosition = text.getCaretPosition();
 799                                                 int charcount = text.getCharCount();
 800                                                 if (caretPosition == charcount) {
 801                                                         mergeWithNext();
 802                                                 }
 803                                         }
 804                                 }
 805                         }
 806                 } catch (Exception e) {
 807                         ke.doit = false;
 808                         notifyEditionException(e);
 809                 }
 810         }
 811
 812         @Override
 813         public void keyReleased(KeyEvent e) {
 814         }
 815
 816         // MOUSE LISTENER
 817         @Override
 818         protected MouseListener createMouseListener() {
 819                 return new ML();
 820         }
 821
 822         private class ML extends MouseAdapter {
 823                 private static final long serialVersionUID = 8526890859876770905L;
 824
 825                 @Override
 826                 public void mouseDoubleClick(MouseEvent e) {
 827                         if (e.button == 1) {
 828                                 Control source = (Control) e.getSource();
 829                                 if (getCmsEditable().canEdit()) {
 830                                         if (getCmsEditable().isEditing()
 831                                                         && !(getEdited() instanceof Img)) {
 832                                                 if (source == mainSection)
 833                                                         return;
 834                                                 EditablePart part = findDataParent(source);
 835                                                 upload(part);
 836                                         } else {
 837                                                 getCmsEditable().startEditing();
 838                                         }
 839                                 }
 840                         }
 841                 }
 842
 843                 @Override
 844                 public void mouseDown(MouseEvent e) {
 845                         if (getCmsEditable().isEditing()) {
 846                                 if (e.button == 1) {
 847                                         Control source = (Control) e.getSource();
 848                                         EditablePart composite = findDataParent(source);
 849                                         Point point = new Point(e.x, e.y);
 850                                         if (!(composite instanceof Img))
 851                                                 edit(composite, source.toDisplay(point));
 852                                 } else if (e.button == 3) {
 853                                         EditablePart composite = findDataParent((Control) e
 854                                                         .getSource());
 855                                         if (styledTools != null)
 856                                                 styledTools.show(composite, new Point(e.x, e.y));
 857                                 }
 858                         }
 859                 }
 860
 861                 @Override
 862                 public void mouseUp(MouseEvent e) {
 863                 }
 864         }
 865
 866         // FILE UPLOAD LISTENER
 867         private class FUL implements FileUploadListener {
 868                 public void uploadProgress(FileUploadEvent event) {
 869                         // TODO Monitor upload progress
 870                 }
 871
 872                 public void uploadFailed(FileUploadEvent event) {
 873                         throw new CmsException("Upload failed " + event,
 874                                         event.getException());
 875                 }
 876
 877                 public void uploadFinished(FileUploadEvent event) {
 878                         for (FileDetails file : event.getFileDetails()) {
 879                                 if (log.isDebugEnabled())
 880                                         log.debug("Received: " + file.getFileName());
 881                         }
 882                         mainSection.getDisplay().syncExec(new Runnable() {
 883                                 @Override
 884                                 public void run() {
 885                                         saveEdit();
 886                                 }
 887                         });
 888                         FileUploadHandler uploadHandler = (FileUploadHandler) event
 889                                         .getSource();
 890                         uploadHandler.dispose();
 891                 }
 892         }
 893 }