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

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