org/argeo/docbook/ui/AbstractDbkViewer.java

   1 package org.argeo.docbook.ui;
   2
   3 import static org.argeo.cms.ui.util.CmsUiUtils.fillWidth;
   4 import static org.argeo.docbook.DbkType.para;
   5 import static org.argeo.docbook.DbkUtils.addDbk;
   6 import static org.argeo.docbook.DbkUtils.isDbk;
   7
   8 import java.util.ArrayList;
   9 import java.util.Iterator;
  10 import java.util.List;
  11 import java.util.Map;
  12 import java.util.Observer;
  13
  14 import javax.jcr.Item;
  15 import javax.jcr.Node;
  16 import javax.jcr.NodeIterator;
  17 import javax.jcr.RepositoryException;
  18 import javax.jcr.Session;
  19
  20 import org.apache.commons.logging.Log;
  21 import org.apache.commons.logging.LogFactory;
  22 import org.argeo.cms.text.Paragraph;
  23 import org.argeo.cms.text.TextInterpreter;
  24 import org.argeo.cms.text.TextSection;
  25 import org.argeo.cms.ui.CmsEditable;
  26 import org.argeo.cms.ui.util.CmsUiUtils;
  27 import org.argeo.cms.ui.viewers.AbstractPageViewer;
  28 import org.argeo.cms.ui.viewers.EditablePart;
  29 import org.argeo.cms.ui.viewers.NodePart;
  30 import org.argeo.cms.ui.viewers.PropertyPart;
  31 import org.argeo.cms.ui.viewers.Section;
  32 import org.argeo.cms.ui.viewers.SectionPart;
  33 import org.argeo.cms.ui.widgets.EditableText;
  34 import org.argeo.cms.ui.widgets.StyledControl;
  35 import org.argeo.docbook.DbkAttr;
  36 import org.argeo.docbook.DbkType;
  37 import org.argeo.docbook.DbkUtils;
  38 import org.argeo.jcr.Jcr;
  39 import org.argeo.jcr.JcrException;
  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.graphics.Rectangle;
  54 import org.eclipse.swt.layout.GridData;
  55 import org.eclipse.swt.widgets.Composite;
  56 import org.eclipse.swt.widgets.Control;
  57 import org.eclipse.swt.widgets.Label;
  58 import org.eclipse.swt.widgets.Text;
  59
  60 /** Base class for text viewers and editors. */
  61 public abstract class AbstractDbkViewer extends AbstractPageViewer implements KeyListener, Observer {
  62         private static final long serialVersionUID = -2401274679492339668L;
  63         private final static Log log = LogFactory.getLog(AbstractDbkViewer.class);
  64
  65         private final Section mainSection;
  66
  67         private TextInterpreter textInterpreter = new DbkTextInterpreter();
  68         private DbkImageManager imageManager;
  69
  70         private FileUploadListener fileUploadListener;
  71         private DbkContextMenu styledTools;
  72
  73         private final boolean flat;
  74
  75         private boolean showMainTitle = true;
  76
  77         private Integer maxMediaWidth = null;
  78
  79         protected AbstractDbkViewer(Section parent, int style, CmsEditable cmsEditable) {
  80                 super(parent, style, cmsEditable);
  81 //              CmsView cmsView = CmsView.getCmsView(parent);
  82 //              imageManager = cmsView.getImageManager();
  83                 flat = SWT.FLAT == (style & SWT.FLAT);
  84
  85                 if (getCmsEditable().canEdit()) {
  86                         fileUploadListener = new FUL();
  87                         styledTools = new DbkContextMenu(this, parent.getShell());
  88                 }
  89                 this.mainSection = parent;
  90                 Node baseFolder = Jcr.getParent(mainSection.getNode());
  91                 imageManager = new DbkImageManager(baseFolder);
  92                 initModelIfNeeded(mainSection.getNode());
  93                 // layout(this.mainSection);
  94         }
  95
  96         @Override
  97         public Control getControl() {
  98                 return mainSection;
  99         }
 100
 101         protected void refresh(Control control) throws RepositoryException {
 102                 if (!(control instanceof Section))
 103                         return;
 104                 Section section = (Section) control;
 105                 if (section instanceof TextSection) {
 106                         CmsUiUtils.clear(section);
 107                         Node node = section.getNode();
 108                         TextSection textSection = (TextSection) section;
 109                         if (node.hasNode(DbkType.title.get())) {
 110                                 boolean showTitle = getMainSection() == section ? showMainTitle : true;
 111                                 if (showTitle) {
 112                                         if (section.getHeader() == null)
 113                                                 section.createHeader();
 114                                         Node titleNode = node.getNode(DbkType.title.get());
 115                                         DocBookSectionTitle title = newSectionTitle(textSection, titleNode);
 116                                         title.setLayoutData(CmsUiUtils.fillWidth());
 117                                         updateContent(title);
 118                                 }
 119                         }
 120
 121                         for (NodeIterator ni = node.getNodes(); ni.hasNext();) {
 122                                 Node child = ni.nextNode();
 123                                 SectionPart sectionPart = null;
 124                                 if (isDbk(child, DbkType.mediaobject)) {
 125                                         sectionPart = newImg(textSection, child);
 126 //                                      if (child.hasNode(DbkType.imageobject.get())) {
 127 //                                              Node imageDataNode = child.getNode(DbkType.imageobject.get()).getNode(DbkType.imagedata.get());
 128 //                                              sectionPart = newImg(textSection, imageDataNode);
 129 //                                      }
 130                                 } else if (isDbk(child, para)) {
 131                                         sectionPart = newParagraph(textSection, child);
 132                                 } else {
 133                                         sectionPart = newSectionPart(textSection, child);
 134 //                                      if (sectionPart == null)
 135 //                                              throw new IllegalArgumentException("Unsupported node " + child);
 136                                         // TODO list node types in exception
 137                                 }
 138                                 if (sectionPart != null && sectionPart instanceof Control)
 139                                         ((Control) sectionPart).setLayoutData(CmsUiUtils.fillWidth());
 140                         }
 141
 142 //                      if (!flat)
 143                         for (NodeIterator ni = section.getNode().getNodes(DbkType.section.get()); ni.hasNext();) {
 144                                 Node child = ni.nextNode();
 145                                 if (isDbk(child, DbkType.section)) {
 146                                         TextSection newSection = new TextSection(section, SWT.NONE, child);
 147                                         newSection.setLayoutData(CmsUiUtils.fillWidth());
 148                                         refresh(newSection);
 149                                 }
 150                         }
 151                 } else {
 152                         for (Section s : section.getSubSections().values())
 153                                 refresh(s);
 154                 }
 155                 // section.layout(true, true);
 156         }
 157
 158         /** To be overridden in order to provide additional SectionPart types */
 159         protected SectionPart newSectionPart(TextSection textSection, Node node) {
 160                 return null;
 161         }
 162
 163         // CRUD
 164         protected Paragraph newParagraph(TextSection parent, Node node) throws RepositoryException {
 165                 Paragraph paragraph = new Paragraph(parent, parent.getStyle(), node);
 166                 updateContent(paragraph);
 167                 paragraph.setLayoutData(fillWidth());
 168                 paragraph.setMouseListener(getMouseListener());
 169                 paragraph.setFocusListener(getFocusListener());
 170                 return paragraph;
 171         }
 172
 173         protected DbkImg newImg(TextSection parent, Node node) {
 174                 try {
 175                         DbkImg img = new DbkImg(parent, parent.getStyle(), node, imageManager);
 176                         GridData imgGd;
 177                         if (maxMediaWidth != null) {
 178                                 imgGd = new GridData(SWT.CENTER, SWT.FILL, false, false);
 179                                 imgGd.widthHint = maxMediaWidth;
 180                                 img.setPreferredSize(new Point(maxMediaWidth, 0));
 181                         } else {
 182                                 imgGd = CmsUiUtils.grabWidth(SWT.CENTER, SWT.DEFAULT);
 183                         }
 184                         img.setLayoutData(imgGd);
 185                         updateContent(img);
 186                         img.setMouseListener(getMouseListener());
 187                         img.setFocusListener(getFocusListener());
 188                         return img;
 189                 } catch (RepositoryException e) {
 190                         throw new JcrException("Cannot add new image " + node, e);
 191                 }
 192         }
 193
 194         protected DocBookSectionTitle newSectionTitle(TextSection parent, Node titleNode) throws RepositoryException {
 195                 int style = parent.getStyle();
 196                 Composite titleParent = newSectionHeader(parent);
 197                 if (parent.isTitleReadOnly())
 198                         style = style | SWT.READ_ONLY;
 199                 DocBookSectionTitle title = new DocBookSectionTitle(titleParent, style, titleNode);
 200                 updateContent(title);
 201                 title.setMouseListener(getMouseListener());
 202                 title.setFocusListener(getFocusListener());
 203                 return title;
 204         }
 205
 206         /**
 207          * To be overridden in order to provide additional processing at the section
 208          * level.
 209          *
 210          * @return the parent to use for the {@link DocBookSectionTitle}, by default
 211          *         {@link Section#getHeader()}
 212          */
 213         protected Composite newSectionHeader(TextSection section) {
 214                 return section.getHeader();
 215         }
 216
 217         protected DocBookSectionTitle prepareSectionTitle(Section newSection, String titleText) throws RepositoryException {
 218                 Node sectionNode = newSection.getNode();
 219                 Node titleNode = DbkUtils.getOrAddDbk(sectionNode, DbkType.title);
 220                 getTextInterpreter().write(titleNode, titleText);
 221                 if (newSection.getHeader() == null)
 222                         newSection.createHeader();
 223                 DocBookSectionTitle sectionTitle = newSectionTitle((TextSection) newSection, sectionNode);
 224                 return sectionTitle;
 225         }
 226
 227         protected void updateContent(EditablePart part) throws RepositoryException {
 228                 if (part instanceof SectionPart) {
 229                         SectionPart sectionPart = (SectionPart) part;
 230                         Node partNode = sectionPart.getNode();
 231
 232                         if (part instanceof StyledControl && (sectionPart.getSection() instanceof TextSection)) {
 233                                 TextSection section = (TextSection) sectionPart.getSection();
 234                                 StyledControl styledControl = (StyledControl) part;
 235                                 if (isDbk(partNode, para)) {
 236                                         String style = partNode.hasProperty(DbkAttr.role.name())
 237                                                         ? partNode.getProperty(DbkAttr.role.name()).getString()
 238                                                         : section.getDefaultTextStyle();
 239                                         styledControl.setStyle(style);
 240                                 }
 241                         }
 242                         // use control AFTER setting style, since it may have been reset
 243
 244                         if (part instanceof EditableText) {
 245                                 EditableText paragraph = (EditableText) part;
 246                                 if (paragraph == getEdited())
 247                                         paragraph.setText(textInterpreter.raw(partNode));
 248                                 else
 249                                         paragraph.setText(textInterpreter.readSimpleHtml(partNode));
 250                         } else if (part instanceof DbkImg) {
 251                                 DbkImg editableImage = (DbkImg) part;
 252                                 imageManager.load(partNode, part.getControl(), editableImage.getPreferredImageSize());
 253                         }
 254                 } else if (part instanceof DocBookSectionTitle) {
 255                         DocBookSectionTitle title = (DocBookSectionTitle) part;
 256                         title.setStyle(title.getSection().getTitleStyle());
 257                         // use control AFTER setting style
 258                         if (title == getEdited())
 259                                 title.setText(textInterpreter.read(title.getNode()));
 260                         else
 261                                 title.setText(textInterpreter.raw(title.getNode()));
 262                 }
 263         }
 264
 265         // OVERRIDDEN FROM PARENT VIEWER
 266         @Override
 267         protected void save(EditablePart part) throws RepositoryException {
 268                 if (part instanceof EditableText) {
 269                         EditableText et = (EditableText) part;
 270                         if (!et.getEditable())
 271                                 return;
 272                         String text = ((Text) et.getControl()).getText();
 273
 274                         // String[] lines = text.split("[\r\n]+");
 275                         String[] lines = { text };
 276                         assert lines.length != 0;
 277                         saveLine(part, lines[0]);
 278                         if (lines.length > 1) {
 279                                 ArrayList<Control> toLayout = new ArrayList<Control>();
 280                                 if (part instanceof Paragraph) {
 281                                         Paragraph currentParagraph = (Paragraph) et;
 282                                         Section section = currentParagraph.getSection();
 283                                         Node sectionNode = section.getNode();
 284                                         Node currentParagraphN = currentParagraph.getNode();
 285                                         for (int i = 1; i < lines.length; i++) {
 286                                                 Node newNode = addDbk(sectionNode, para);
 287                                                 // newNode.addMixin(CmsTypes.CMS_STYLED);
 288                                                 saveLine(newNode, lines[i]);
 289                                                 // second node was create as last, if it is not the next
 290                                                 // one, it
 291                                                 // means there are some in between and we can take the
 292                                                 // one at
 293                                                 // index+1 for the re-order
 294                                                 if (newNode.getIndex() > currentParagraphN.getIndex() + 1) {
 295                                                         sectionNode.orderBefore(p(newNode.getIndex()), p(currentParagraphN.getIndex() + 1));
 296                                                 }
 297                                                 Paragraph newParagraph = newParagraph((TextSection) section, newNode);
 298                                                 newParagraph.moveBelow(currentParagraph);
 299                                                 toLayout.add(newParagraph);
 300
 301                                                 currentParagraph = newParagraph;
 302                                                 currentParagraphN = newNode;
 303                                         }
 304                                 }
 305                                 // TODO or rather return the created paragraphs?
 306                                 layout(toLayout.toArray(new Control[toLayout.size()]));
 307                         }
 308                         persistChanges(et.getNode());
 309                 }
 310         }
 311
 312         protected void saveLine(EditablePart part, String line) {
 313                 if (part instanceof NodePart) {
 314                         saveLine(((NodePart) part).getNode(), line);
 315                 } else if (part instanceof PropertyPart) {
 316                         saveLine(((PropertyPart) part).getProperty(), line);
 317                 } else {
 318                         throw new IllegalArgumentException("Unsupported part " + part);
 319                 }
 320         }
 321
 322         protected void saveLine(Item item, String line) {
 323                 line = line.trim();
 324                 textInterpreter.write(item, line);
 325         }
 326
 327         @Override
 328         protected void prepare(EditablePart part, Object caretPosition) {
 329                 Control control = part.getControl();
 330                 if (control instanceof Text) {
 331                         Text text = (Text) control;
 332                         if (caretPosition != null)
 333                                 if (caretPosition instanceof Integer)
 334                                         text.setSelection((Integer) caretPosition);
 335                                 else if (caretPosition instanceof Point) {
 336 //                                      layout(text);
 337 //                                      // TODO find a way to position the caret at the right place
 338 //                                      Point clickLocation = (Point) caretPosition;
 339 //                                      Point withinText = text.toControl(clickLocation);
 340 //                                      Rectangle bounds = text.getBounds();
 341 //                                      int width = bounds.width;
 342 //                                      int height = bounds.height;
 343 //                                      int textLength = text.getText().length();
 344 //                                      float area = width * height;
 345 //                                      float proportion = withinText.y * width + withinText.x;
 346 //                                      int pos = (int) (textLength * (proportion / area));
 347 //                                      text.setSelection(pos);
 348                                 }
 349                         text.setData(RWT.ACTIVE_KEYS, new String[] { "BACKSPACE", "ESC", "TAB", "SHIFT+TAB", "ALT+ARROW_LEFT",
 350                                         "ALT+ARROW_RIGHT", "ALT+ARROW_UP", "ALT+ARROW_DOWN", "RETURN", "CTRL+RETURN", "ENTER", "DELETE" });
 351                         text.setData(RWT.CANCEL_KEYS, new String[] { "RETURN", "ALT+ARROW_LEFT", "ALT+ARROW_RIGHT" });
 352                         text.addKeyListener(this);
 353                 } else if (part instanceof DbkImg) {
 354                         ((DbkImg) part).setFileUploadListener(fileUploadListener);
 355                 }
 356         }
 357
 358         // REQUIRED BY CONTEXT MENU
 359         void setParagraphStyle(Paragraph paragraph, String style) {
 360                 try {
 361                         Node paragraphNode = paragraph.getNode();
 362                         if (style == null) {// default
 363                                 if (paragraphNode.hasProperty(DbkAttr.role.name()))
 364                                         paragraphNode.getProperty(DbkAttr.role.name()).remove();
 365                         } else {
 366                                 paragraphNode.setProperty(DbkAttr.role.name(), style);
 367                         }
 368                         persistChanges(paragraphNode);
 369                         updateContent(paragraph);
 370                         layoutPage();
 371                 } catch (RepositoryException e1) {
 372                         throw new JcrException("Cannot set style " + style + " on " + paragraph, e1);
 373                 }
 374         }
 375
 376         SectionPart insertPart(Section section, Node node) {
 377                 try {
 378                         refresh(section);
 379                         layoutPage();
 380                         for (Control control : section.getChildren()) {
 381                                 if (control instanceof SectionPart) {
 382                                         SectionPart sectionPart = (SectionPart) control;
 383                                         Node partNode = sectionPart.getNode();
 384                                         if (partNode.getPath().equals(node.getPath()))
 385                                                 return sectionPart;
 386                                 }
 387                         }
 388                         throw new IllegalStateException("New section part " + node + "not found");
 389                 } catch (RepositoryException e) {
 390                         throw new JcrException("Cannot insert part " + node + " in section " + section.getNode(), e);
 391                 }
 392         }
 393
 394         void addParagraph(SectionPart partBefore, String txt) {
 395                 Section section = partBefore.getSection();
 396                 SectionPart nextSectionPart = section.nextSectionPart(partBefore);
 397                 Node newNode = addDbk(section.getNode(), para);
 398                 textInterpreter.write(newNode, txt != null ? txt : "");
 399                 if (nextSectionPart != null) {
 400                         try {
 401                                 Node nextNode = nextSectionPart.getNode();
 402                                 section.getNode().orderBefore(Jcr.getIndexedName(newNode), Jcr.getIndexedName(nextNode));
 403                         } catch (RepositoryException e) {
 404                                 throw new JcrException("Cannot order " + newNode + " before " + nextSectionPart.getNode(), e);
 405                         }
 406                 }
 407                 Jcr.save(newNode);
 408                 Paragraph paragraph = (Paragraph) insertPart(partBefore.getSection(), newNode);
 409                 edit(paragraph, 0);
 410         }
 411
 412         void deletePart(SectionPart sectionPart) {
 413                 try {
 414                         Node node = sectionPart.getNode();
 415                         Session session = node.getSession();
 416                         if (sectionPart instanceof DbkImg) {
 417                                 if (!isDbk(node, DbkType.mediaobject))
 418                                         throw new IllegalArgumentException("Node " + node + " is not a media object.");
 419                         }
 420                         node.remove();
 421                         session.save();
 422                         if (sectionPart instanceof Control)
 423                                 ((Control) sectionPart).dispose();
 424                         layoutPage();
 425                 } catch (RepositoryException e1) {
 426                         throw new JcrException("Cannot delete " + sectionPart, e1);
 427                 }
 428         }
 429
 430         void deleteSection(Section section) {
 431                 try {
 432                         Node node = section.getNode();
 433                         Session session = node.getSession();
 434                         node.remove();
 435                         session.save();
 436                         section.dispose();
 437                         layoutPage();
 438                 } catch (RepositoryException e1) {
 439                         throw new JcrException("Cannot delete " + section, e1);
 440                 }
 441         }
 442
 443         String getRawParagraphText(Paragraph paragraph) {
 444                 return textInterpreter.raw(paragraph.getNode());
 445         }
 446
 447         // COMMANDS
 448         protected void splitEdit() {
 449                 checkEdited();
 450                 try {
 451                         if (getEdited() instanceof Paragraph) {
 452                                 Paragraph paragraph = (Paragraph) getEdited();
 453                                 Text text = (Text) paragraph.getControl();
 454                                 int caretPosition = text.getCaretPosition();
 455                                 String txt = text.getText();
 456                                 String first = txt.substring(0, caretPosition);
 457                                 String second = txt.substring(caretPosition);
 458                                 Node firstNode = paragraph.getNode();
 459                                 Node sectionNode = firstNode.getParent();
 460
 461                                 // FIXME set content the DocBook way
 462                                 // firstNode.setProperty(CMS_CONTENT, first);
 463                                 Node secondNode = addDbk(sectionNode, para);
 464                                 // secondNode.addMixin(CmsTypes.CMS_STYLED);
 465
 466                                 // second node was create as last, if it is not the next one, it
 467                                 // means there are some in between and we can take the one at
 468                                 // index+1 for the re-order
 469                                 if (secondNode.getIndex() > firstNode.getIndex() + 1) {
 470                                         sectionNode.orderBefore(p(secondNode.getIndex()), p(firstNode.getIndex() + 1));
 471                                 }
 472
 473                                 // if we die in between, at least we still have the whole text
 474                                 // in the first node
 475                                 try {
 476                                         textInterpreter.write(secondNode, second);
 477                                         textInterpreter.write(firstNode, first);
 478                                 } catch (Exception e) {
 479                                         // so that no additional nodes are created:
 480                                         JcrUtils.discardUnderlyingSessionQuietly(firstNode);
 481                                         throw e;
 482                                 }
 483
 484                                 persistChanges(firstNode);
 485
 486                                 Paragraph secondParagraph = paragraphSplitted(paragraph, secondNode);
 487                                 edit(secondParagraph, 0);
 488                         } else if (getEdited() instanceof DocBookSectionTitle) {
 489                                 DocBookSectionTitle sectionTitle = (DocBookSectionTitle) getEdited();
 490                                 Text text = (Text) sectionTitle.getControl();
 491                                 String txt = text.getText();
 492                                 int caretPosition = text.getCaretPosition();
 493                                 Section section = sectionTitle.getSection();
 494                                 Node sectionNode = section.getNode();
 495                                 Node paragraphNode = addDbk(sectionNode, para);
 496                                 // paragraphNode.addMixin(CmsTypes.CMS_STYLED);
 497
 498                                 textInterpreter.write(paragraphNode, txt.substring(caretPosition));
 499                                 textInterpreter.write(sectionNode.getNode(DbkType.title.get()), txt.substring(0, caretPosition));
 500                                 sectionNode.orderBefore(p(paragraphNode.getIndex()), p(1));
 501                                 persistChanges(sectionNode);
 502
 503                                 Paragraph paragraph = sectionTitleSplitted(sectionTitle, paragraphNode);
 504                                 // section.layout();
 505                                 edit(paragraph, 0);
 506                         }
 507                 } catch (RepositoryException e) {
 508                         throw new JcrException("Cannot split " + getEdited(), e);
 509                 }
 510         }
 511
 512         protected void mergeWithPrevious() {
 513                 checkEdited();
 514                 try {
 515                         Paragraph paragraph = (Paragraph) getEdited();
 516                         Text text = (Text) paragraph.getControl();
 517                         String txt = text.getText();
 518                         Node paragraphNode = paragraph.getNode();
 519                         if (paragraphNode.getIndex() == 1)
 520                                 return;// do nothing
 521                         Node sectionNode = paragraphNode.getParent();
 522                         Node previousNode = sectionNode.getNode(p(paragraphNode.getIndex() - 1));
 523                         String previousTxt = textInterpreter.read(previousNode);
 524                         textInterpreter.write(previousNode, previousTxt + txt);
 525                         paragraphNode.remove();
 526                         persistChanges(sectionNode);
 527
 528                         Paragraph previousParagraph = paragraphMergedWithPrevious(paragraph, previousNode);
 529                         edit(previousParagraph, previousTxt.length());
 530                 } catch (RepositoryException e) {
 531                         throw new JcrException("Cannot stop editing", e);
 532                 }
 533         }
 534
 535         protected void mergeWithNext() {
 536                 checkEdited();
 537                 try {
 538                         Paragraph paragraph = (Paragraph) getEdited();
 539                         Text text = (Text) paragraph.getControl();
 540                         String txt = text.getText();
 541                         Node paragraphNode = paragraph.getNode();
 542                         Node sectionNode = paragraphNode.getParent();
 543                         NodeIterator paragraphNodes = sectionNode.getNodes(DbkType.para.get());
 544                         long size = paragraphNodes.getSize();
 545                         if (paragraphNode.getIndex() == size)
 546                                 return;// do nothing
 547                         Node nextNode = sectionNode.getNode(p(paragraphNode.getIndex() + 1));
 548                         String nextTxt = textInterpreter.read(nextNode);
 549                         textInterpreter.write(paragraphNode, txt + nextTxt);
 550
 551                         Section section = paragraph.getSection();
 552                         Paragraph removed = (Paragraph) section.getSectionPart(nextNode.getIdentifier());
 553
 554                         nextNode.remove();
 555                         persistChanges(sectionNode);
 556
 557                         paragraphMergedWithNext(paragraph, removed);
 558                         edit(paragraph, txt.length());
 559                 } catch (RepositoryException e) {
 560                         throw new JcrException("Cannot stop editing", e);
 561                 }
 562         }
 563
 564         protected synchronized void upload(EditablePart part) {
 565                 try {
 566                         if (part instanceof SectionPart) {
 567                                 SectionPart sectionPart = (SectionPart) part;
 568                                 Node partNode = sectionPart.getNode();
 569                                 int partIndex = partNode.getIndex();
 570                                 Section section = sectionPart.getSection();
 571                                 Node sectionNode = section.getNode();
 572
 573                                 if (part instanceof Paragraph) {
 574                                         // FIXME adapt to DocBook
 575 //                                      Node newNode = sectionNode.addNode(DocBookNames.DBK_MEDIAOBJECT, NodeType.NT_FILE);
 576 //                                      newNode.addNode(Node.JCR_CONTENT, NodeType.NT_RESOURCE);
 577 //                                      JcrUtils.copyBytesAsFile(sectionNode, p(newNode.getIndex()), new byte[0]);
 578 //                                      if (partIndex < newNode.getIndex() - 1) {
 579 //                                              // was not last
 580 //                                              sectionNode.orderBefore(p(newNode.getIndex()), p(partIndex - 1));
 581 //                                      }
 582 //                                      // sectionNode.orderBefore(p(partNode.getIndex()),
 583 //                                      // p(newNode.getIndex()));
 584 //                                      persistChanges(sectionNode);
 585 //                                      DbkImg img = newImg((TextSection) section, newNode);
 586 //                                      edit(img, null);
 587 //                                      layout(img.getControl());
 588                                 } else if (part instanceof DbkImg) {
 589                                         if (getEdited() == part)
 590                                                 return;
 591                                         edit(part, null);
 592                                         layoutPage();
 593                                 }
 594                         }
 595                 } catch (RepositoryException e) {
 596                         throw new JcrException("Cannot upload", e);
 597                 }
 598         }
 599
 600         protected void deepen() {
 601                 if (flat)
 602                         return;
 603                 checkEdited();
 604                 try {
 605                         if (getEdited() instanceof Paragraph) {
 606                                 Paragraph paragraph = (Paragraph) getEdited();
 607                                 Text text = (Text) paragraph.getControl();
 608                                 String txt = text.getText();
 609                                 Node paragraphNode = paragraph.getNode();
 610                                 Section section = paragraph.getSection();
 611                                 Node sectionNode = section.getNode();
 612                                 // main title
 613                                 if (section == mainSection && section instanceof TextSection && paragraphNode.getIndex() == 1
 614                                                 && !sectionNode.hasNode(DbkType.title.get())) {
 615                                         DocBookSectionTitle sectionTitle = prepareSectionTitle(section, txt);
 616                                         edit(sectionTitle, 0);
 617                                         return;
 618                                 }
 619                                 Node newSectionNode = addDbk(sectionNode, DbkType.section);
 620                                 // newSectionNode.addMixin(NodeType.MIX_TITLE);
 621                                 sectionNode.orderBefore(h(newSectionNode.getIndex()), h(1));
 622
 623                                 int paragraphIndex = paragraphNode.getIndex();
 624                                 String sectionPath = sectionNode.getPath();
 625                                 String newSectionPath = newSectionNode.getPath();
 626                                 while (sectionNode.hasNode(p(paragraphIndex + 1))) {
 627                                         Node parag = sectionNode.getNode(p(paragraphIndex + 1));
 628                                         sectionNode.getSession().move(sectionPath + '/' + p(paragraphIndex + 1),
 629                                                         newSectionPath + '/' + DbkType.para.get());
 630                                         SectionPart sp = section.getSectionPart(parag.getIdentifier());
 631                                         if (sp instanceof Control)
 632                                                 ((Control) sp).dispose();
 633                                 }
 634                                 // create title
 635                                 Node titleNode = DbkUtils.addDbk(newSectionNode, DbkType.title);
 636                                 // newSectionNode.addNode(DocBookType.TITLE, DocBookType.TITLE);
 637                                 getTextInterpreter().write(titleNode, txt);
 638
 639                                 TextSection newSection = new TextSection(section, section.getStyle(), newSectionNode);
 640                                 newSection.setLayoutData(CmsUiUtils.fillWidth());
 641                                 newSection.moveBelow(paragraph);
 642
 643                                 // dispose
 644                                 paragraphNode.remove();
 645                                 paragraph.dispose();
 646
 647                                 refresh(newSection);
 648                                 newSection.getParent().layout();
 649                                 layout(newSection);
 650                                 persistChanges(sectionNode);
 651                         } else if (getEdited() instanceof DocBookSectionTitle) {
 652                                 DocBookSectionTitle sectionTitle = (DocBookSectionTitle) getEdited();
 653                                 Section section = sectionTitle.getSection();
 654                                 Section parentSection = section.getParentSection();
 655                                 if (parentSection == null)
 656                                         return;// cannot deepen main section
 657                                 Node sectionN = section.getNode();
 658                                 Node parentSectionN = parentSection.getNode();
 659                                 if (sectionN.getIndex() == 1)
 660                                         return;// cannot deepen first section
 661                                 Node previousSectionN = parentSectionN.getNode(h(sectionN.getIndex() - 1));
 662                                 NodeIterator subSections = previousSectionN.getNodes(DbkType.section.get());
 663                                 int subsectionsCount = (int) subSections.getSize();
 664                                 previousSectionN.getSession().move(sectionN.getPath(),
 665                                                 previousSectionN.getPath() + "/" + h(subsectionsCount + 1));
 666                                 section.dispose();
 667                                 TextSection newSection = new TextSection(section, section.getStyle(), sectionN);
 668                                 refresh(newSection);
 669                                 persistChanges(previousSectionN);
 670                         }
 671                 } catch (RepositoryException e) {
 672                         throw new JcrException("Cannot deepen " + getEdited(), e);
 673                 }
 674         }
 675
 676         protected void undeepen() {
 677                 if (flat)
 678                         return;
 679                 checkEdited();
 680                 try {
 681                         if (getEdited() instanceof Paragraph) {
 682                                 upload(getEdited());
 683                         } else if (getEdited() instanceof DocBookSectionTitle) {
 684                                 DocBookSectionTitle sectionTitle = (DocBookSectionTitle) getEdited();
 685                                 Section section = sectionTitle.getSection();
 686                                 Node sectionNode = section.getNode();
 687                                 Section parentSection = section.getParentSection();
 688                                 if (parentSection == null)
 689                                         return;// cannot undeepen main section
 690
 691                                 // choose in which section to merge
 692                                 Section mergedSection;
 693                                 if (sectionNode.getIndex() == 1)
 694                                         mergedSection = section.getParentSection();
 695                                 else {
 696                                         Map<String, Section> parentSubsections = parentSection.getSubSections();
 697                                         ArrayList<Section> lst = new ArrayList<Section>(parentSubsections.values());
 698                                         mergedSection = lst.get(sectionNode.getIndex() - 1);
 699                                 }
 700                                 Node mergedNode = mergedSection.getNode();
 701                                 boolean mergedHasSubSections = mergedNode.hasNode(DbkType.section.get());
 702
 703                                 // title as paragraph
 704                                 Node newParagrapheNode = addDbk(mergedNode, para);
 705                                 // newParagrapheNode.addMixin(CmsTypes.CMS_STYLED);
 706                                 if (mergedHasSubSections)
 707                                         mergedNode.orderBefore(p(newParagrapheNode.getIndex()), h(1));
 708                                 String txt = getTextInterpreter().read(sectionNode.getNode(DbkType.title.get()));
 709                                 getTextInterpreter().write(newParagrapheNode, txt);
 710                                 // move
 711                                 NodeIterator paragraphs = sectionNode.getNodes(para.get());
 712                                 while (paragraphs.hasNext()) {
 713                                         Node p = paragraphs.nextNode();
 714                                         SectionPart sp = section.getSectionPart(p.getIdentifier());
 715                                         if (sp instanceof Control)
 716                                                 ((Control) sp).dispose();
 717                                         mergedNode.getSession().move(p.getPath(), mergedNode.getPath() + '/' + para.get());
 718                                         if (mergedHasSubSections)
 719                                                 mergedNode.orderBefore(p(p.getIndex()), h(1));
 720                                 }
 721
 722                                 Iterator<Section> subsections = section.getSubSections().values().iterator();
 723                                 // NodeIterator sections = sectionNode.getNodes(CMS_H);
 724                                 while (subsections.hasNext()) {
 725                                         Section subsection = subsections.next();
 726                                         Node s = subsection.getNode();
 727                                         mergedNode.getSession().move(s.getPath(), mergedNode.getPath() + '/' + DbkType.section.get());
 728                                         subsection.dispose();
 729                                 }
 730
 731                                 // remove section
 732                                 section.getNode().remove();
 733                                 section.dispose();
 734
 735                                 refresh(mergedSection);
 736                                 mergedSection.getParent().layout();
 737                                 layout(mergedSection);
 738                                 persistChanges(mergedNode);
 739                         }
 740                 } catch (RepositoryException e) {
 741                         throw new JcrException("Cannot undeepen " + getEdited(), e);
 742                 }
 743         }
 744
 745         // UI CHANGES
 746         protected Paragraph paragraphSplitted(Paragraph paragraph, Node newNode) throws RepositoryException {
 747                 Section section = paragraph.getSection();
 748                 updateContent(paragraph);
 749                 Paragraph newParagraph = newParagraph((TextSection) section, newNode);
 750                 newParagraph.setLayoutData(CmsUiUtils.fillWidth());
 751                 newParagraph.moveBelow(paragraph);
 752                 layout(paragraph.getControl(), newParagraph.getControl());
 753                 return newParagraph;
 754         }
 755
 756         protected Paragraph sectionTitleSplitted(DocBookSectionTitle sectionTitle, Node newNode)
 757                         throws RepositoryException {
 758                 updateContent(sectionTitle);
 759                 Paragraph newParagraph = newParagraph(sectionTitle.getSection(), newNode);
 760                 // we assume beforeFirst is not null since there was a sectionTitle
 761                 newParagraph.moveBelow(sectionTitle.getSection().getHeader());
 762                 layout(sectionTitle.getControl(), newParagraph.getControl());
 763                 return newParagraph;
 764         }
 765
 766         protected Paragraph paragraphMergedWithPrevious(Paragraph removed, Node remaining) throws RepositoryException {
 767                 Section section = removed.getSection();
 768                 removed.dispose();
 769
 770                 Paragraph paragraph = (Paragraph) section.getSectionPart(remaining.getIdentifier());
 771                 updateContent(paragraph);
 772                 layout(paragraph.getControl());
 773                 return paragraph;
 774         }
 775
 776         protected void paragraphMergedWithNext(Paragraph remaining, Paragraph removed) throws RepositoryException {
 777                 removed.dispose();
 778                 updateContent(remaining);
 779                 layout(remaining.getControl());
 780         }
 781
 782         // UTILITIES
 783         protected String p(Integer index) {
 784                 StringBuilder sb = new StringBuilder(6);
 785                 sb.append(para.get()).append('[').append(index).append(']');
 786                 return sb.toString();
 787         }
 788
 789         protected String h(Integer index) {
 790                 StringBuilder sb = new StringBuilder(5);
 791                 sb.append(DbkType.section.get()).append('[').append(index).append(']');
 792                 return sb.toString();
 793         }
 794
 795         // GETTERS / SETTERS
 796         public Section getMainSection() {
 797                 return mainSection;
 798         }
 799
 800         public boolean isFlat() {
 801                 return flat;
 802         }
 803
 804         public TextInterpreter getTextInterpreter() {
 805                 return textInterpreter;
 806         }
 807
 808         // KEY LISTENER
 809         @Override
 810         public void keyPressed(KeyEvent ke) {
 811                 if (log.isTraceEnabled())
 812                         log.trace(ke);
 813
 814                 if (getEdited() == null)
 815                         return;
 816                 boolean altPressed = (ke.stateMask & SWT.ALT) != 0;
 817                 boolean shiftPressed = (ke.stateMask & SWT.SHIFT) != 0;
 818                 boolean ctrlPressed = (ke.stateMask & SWT.CTRL) != 0;
 819
 820                 try {
 821                         // Common
 822                         if (ke.keyCode == SWT.ESC) {
 823 //                              cancelEdit();
 824                                 saveEdit();
 825                         } else if (ke.character == '\r') {
 826                                 if (!shiftPressed)
 827                                         splitEdit();
 828                         } else if (ke.character == 'z') {
 829                                 if (ctrlPressed)
 830                                         cancelEdit();
 831                         } else if (ke.character == 'S') {
 832                                 if (ctrlPressed)
 833                                         saveEdit();
 834                         } else if (ke.character == '\t') {
 835                                 if (!shiftPressed) {
 836                                         deepen();
 837                                 } else if (shiftPressed) {
 838                                         undeepen();
 839                                 }
 840                         } else {
 841                                 if (getEdited() instanceof Paragraph) {
 842                                         Paragraph paragraph = (Paragraph) getEdited();
 843                                         Section section = paragraph.getSection();
 844                                         if (altPressed && ke.keyCode == SWT.ARROW_RIGHT) {
 845                                                 edit(section.nextSectionPart(paragraph), 0);
 846                                         } else if (altPressed && ke.keyCode == SWT.ARROW_LEFT) {
 847                                                 edit(section.previousSectionPart(paragraph), 0);
 848                                         } else if (ke.character == SWT.BS) {
 849                                                 Text text = (Text) paragraph.getControl();
 850                                                 int caretPosition = text.getCaretPosition();
 851                                                 if (caretPosition == 0) {
 852                                                         mergeWithPrevious();
 853                                                 }
 854                                         } else if (ke.character == SWT.DEL) {
 855                                                 Text text = (Text) paragraph.getControl();
 856                                                 int caretPosition = text.getCaretPosition();
 857                                                 int charcount = text.getCharCount();
 858                                                 if (caretPosition == charcount) {
 859                                                         mergeWithNext();
 860                                                 }
 861                                         }
 862                                 }
 863                         }
 864                 } catch (Exception e) {
 865                         ke.doit = false;
 866                         notifyEditionException(e);
 867                 }
 868         }
 869
 870         @Override
 871         public void keyReleased(KeyEvent e) {
 872         }
 873
 874         // MOUSE LISTENER
 875         @Override
 876         protected MouseListener createMouseListener() {
 877                 return new ML();
 878         }
 879
 880         private class ML extends MouseAdapter {
 881                 private static final long serialVersionUID = 8526890859876770905L;
 882
 883                 @Override
 884                 public void mouseDoubleClick(MouseEvent e) {
 885                         if (e.button == 1) {
 886                                 Control source = (Control) e.getSource();
 887                                 EditablePart composite = findDataParent(source);
 888                                 Point point = new Point(e.x, e.y);
 889                                 if (composite instanceof DbkImg) {
 890                                         if (getCmsEditable().canEdit()) {
 891                                                 if (getCmsEditable().isEditing() && !(getEdited() instanceof DbkImg)) {
 892                                                         if (source == mainSection)
 893                                                                 return;
 894                                                         EditablePart part = findDataParent(source);
 895                                                         upload(part);
 896                                                 } else {
 897                                                         getCmsEditable().startEditing();
 898                                                 }
 899                                         }
 900                                 } else if (source instanceof Label) {
 901                                         Label lbl = (Label) source;
 902                                         Rectangle bounds = lbl.getBounds();
 903                                         float width = bounds.width;
 904                                         float height = bounds.height;
 905                                         float textLength = lbl.getText().length();
 906                                         float area = width * height;
 907                                         float charArea = area / textLength;
 908                                         float lines = textLength / width;
 909                                         float proportion = point.y * width + point.x;
 910                                         int pos = (int) (textLength * (proportion / area));
 911                                         // TODO refine it
 912                                         edit(composite, (Integer) pos);
 913                                 } else {
 914                                         edit(composite, source.toDisplay(point));
 915                                 }
 916                         }
 917                 }
 918
 919                 @Override
 920                 public void mouseDown(MouseEvent e) {
 921                         if (getCmsEditable().isEditing()) {
 922                                 if (e.button == 3) {
 923                                         EditablePart composite = findDataParent((Control) e.getSource());
 924                                         if (styledTools != null) {
 925                                                 List<String> styles = getAvailableStyles(composite);
 926                                                 styledTools.show(composite, new Point(e.x, e.y), styles);
 927                                         }
 928                                 }
 929                         }
 930                 }
 931
 932                 @Override
 933                 public void mouseUp(MouseEvent e) {
 934                 }
 935         }
 936
 937         protected List<String> getAvailableStyles(EditablePart editablePart) {
 938                 return new ArrayList<>();
 939         }
 940
 941         public void setMaxMediaWidth(Integer maxMediaWidth) {
 942                 this.maxMediaWidth = maxMediaWidth;
 943         }
 944
 945         public void setShowMainTitle(boolean showMainTitle) {
 946                 this.showMainTitle = showMainTitle;
 947         }
 948
 949         // FILE UPLOAD LISTENER
 950         private class FUL implements FileUploadListener {
 951                 public void uploadProgress(FileUploadEvent event) {
 952                         // TODO Monitor upload progress
 953                 }
 954
 955                 public void uploadFailed(FileUploadEvent event) {
 956                         throw new RuntimeException("Upload failed " + event, event.getException());
 957                 }
 958
 959                 public void uploadFinished(FileUploadEvent event) {
 960                         for (FileDetails file : event.getFileDetails()) {
 961                                 if (log.isDebugEnabled())
 962                                         log.debug("Received: " + file.getFileName());
 963                         }
 964                         mainSection.getDisplay().syncExec(new Runnable() {
 965                                 @Override
 966                                 public void run() {
 967                                         saveEdit();
 968                                 }
 969                         });
 970                         FileUploadHandler uploadHandler = (FileUploadHandler) event.getSource();
 971                         uploadHandler.dispose();
 972                 }
 973         }
 974 }