AbstractDbkViewer.java

   1 package org.argeo.app.ui.docbook;
   2
   3 import static org.argeo.app.docbook.DbkType.para;
   4 import static org.argeo.app.docbook.DbkUtils.addDbk;
   5 import static org.argeo.app.docbook.DbkUtils.isDbk;
   6
   7 import java.util.ArrayList;
   8 import java.util.Iterator;
   9 import java.util.List;
  10 import java.util.Map;
  11 import java.util.Observer;
  12
  13 import javax.jcr.Item;
  14 import javax.jcr.Node;
  15 import javax.jcr.NodeIterator;
  16 import javax.jcr.RepositoryException;
  17 import javax.jcr.Session;
  18
  19 import org.argeo.api.cms.CmsLog;
  20 import org.argeo.api.cms.ux.Cms2DSize;
  21 import org.argeo.api.cms.ux.CmsEditable;
  22 import org.argeo.app.docbook.DbkAttr;
  23 import org.argeo.app.docbook.DbkType;
  24 import org.argeo.app.docbook.DbkUtils;
  25 import org.argeo.cms.swt.CmsSwtUtils;
  26 import org.argeo.cms.swt.SwtEditablePart;
  27 import org.argeo.cms.ui.viewers.AbstractPageViewer;
  28 import org.argeo.cms.ui.viewers.NodePart;
  29 import org.argeo.cms.ui.viewers.PropertyPart;
  30 import org.argeo.cms.ui.viewers.Section;
  31 import org.argeo.cms.ui.viewers.SectionPart;
  32 import org.argeo.cms.ui.widgets.EditableText;
  33 import org.argeo.cms.ui.widgets.StyledControl;
  34 import org.argeo.jcr.Jcr;
  35 import org.argeo.jcr.JcrException;
  36 import org.argeo.jcr.JcrUtils;
  37 import org.eclipse.rap.fileupload.FileDetails;
  38 import org.eclipse.rap.fileupload.FileUploadEvent;
  39 import org.eclipse.rap.fileupload.FileUploadHandler;
  40 import org.eclipse.rap.fileupload.FileUploadListener;
  41 import org.eclipse.rap.rwt.RWT;
  42 import org.eclipse.swt.SWT;
  43 import org.eclipse.swt.events.KeyEvent;
  44 import org.eclipse.swt.events.KeyListener;
  45 import org.eclipse.swt.events.MouseAdapter;
  46 import org.eclipse.swt.events.MouseEvent;
  47 import org.eclipse.swt.events.MouseListener;
  48 import org.eclipse.swt.graphics.Point;
  49 import org.eclipse.swt.graphics.Rectangle;
  50 import org.eclipse.swt.layout.GridData;
  51 import org.eclipse.swt.widgets.Composite;
  52 import org.eclipse.swt.widgets.Control;
  53 import org.eclipse.swt.widgets.Label;
  54 import org.eclipse.swt.widgets.Text;
  55
  56 /** Base class for text viewers and editors. */
  57 public abstract class AbstractDbkViewer extends AbstractPageViewer implements KeyListener, Observer {
  58         private static final long serialVersionUID = -2401274679492339668L;
  59         private final static CmsLog log = CmsLog.getLog(AbstractDbkViewer.class);
  60
  61         private final Section mainSection;
  62
  63         private TextInterpreter textInterpreter = new DbkTextInterpreter();
  64         private DbkImageManager imageManager;
  65
  66         private FileUploadListener fileUploadListener;
  67         private DbkContextMenu styledTools;
  68
  69         private final boolean flat;
  70
  71         private boolean showMainTitle = true;
  72
  73         private Integer maxMediaWidth = null;
  74         private String defaultSectionStyle;
  75
  76         protected AbstractDbkViewer(Section parent, int style, CmsEditable cmsEditable) {
  77                 super(parent, style, cmsEditable);
  78 //              CmsView cmsView = CmsView.getCmsView(parent);
  79 //              imageManager = cmsView.getImageManager();
  80                 flat = SWT.FLAT == (style & SWT.FLAT);
  81
  82                 if (getCmsEditable().canEdit()) {
  83                         fileUploadListener = new FUL();
  84                         styledTools = new DbkContextMenu(this, parent.getShell());
  85                 }
  86                 this.mainSection = parent;
  87                 Node baseFolder = Jcr.getParent(mainSection.getNode());
  88                 imageManager = new DbkImageManager(baseFolder);
  89                 initModelIfNeeded(mainSection.getNode());
  90                 // layout(this.mainSection);
  91         }
  92
  93         @Override
  94         public Control getControl() {
  95                 return mainSection;
  96         }
  97
  98         protected void refresh(Control control) throws RepositoryException {
  99                 if (!(control instanceof Section))
 100                         return;
 101                 long begin = System.currentTimeMillis();
 102                 Section section = (Section) control;
 103                 if (section instanceof TextSection) {
 104                         CmsSwtUtils.clear(section);
 105                         Node node = section.getNode();
 106                         TextSection textSection = (TextSection) section;
 107                         String style = node.hasProperty(DbkAttr.role.name()) ? node.getProperty(DbkAttr.role.name()).getString()
 108                                         : getDefaultSectionStyle();
 109                         if (style != null)
 110                                 CmsSwtUtils.style(textSection, style);
 111
 112                         // Title
 113                         Node titleNode = null;
 114                         // We give priority to ./title vs ./info/title, like the DocBook XSL
 115                         if (node.hasNode(DbkType.title.get())) {
 116                                 titleNode = node.getNode(DbkType.title.get());
 117                         } else if (node.hasNode(DbkType.info.get() + '/' + DbkType.title.get())) {
 118                                 titleNode = node.getNode(DbkType.info.get() + '/' + DbkType.title.get());
 119                         }
 120
 121                         if (titleNode != null) {
 122                                 boolean showTitle = getMainSection() == section ? showMainTitle : true;
 123                                 if (showTitle) {
 124                                         if (section.getHeader() == null)
 125                                                 section.createHeader();
 126                                         DbkSectionTitle title = newSectionTitle(textSection, titleNode);
 127                                         title.setLayoutData(CmsSwtUtils.fillWidth());
 128                                         updateContent(title);
 129                                 }
 130                         }
 131
 132                         // content
 133                         for (NodeIterator ni = node.getNodes(); ni.hasNext();) {
 134                                 Node child = ni.nextNode();
 135                                 SectionPart sectionPart = null;
 136                                 if (isDbk(child, DbkType.mediaobject)) {
 137                                         if (child.hasNode(DbkType.imageobject.get())) {
 138                                                 sectionPart = newImg(textSection, child);
 139                                         } else if (child.hasNode(DbkType.videoobject.get())) {
 140                                                 sectionPart = newVideo(textSection, child);
 141                                         } else {
 142                                                 throw new IllegalArgumentException("Unsupported media object " + child);
 143                                         }
 144                                 } else if (isDbk(child, DbkType.info)) {
 145                                         // TODO enrich UI based on info
 146                                 } else if (isDbk(child, DbkType.title)) {
 147                                         // already managed
 148                                 } else if (isDbk(child, para)) {
 149                                         sectionPart = newParagraph(textSection, child);
 150                                 } else if (isDbk(child, DbkType.section)) {
 151                                         sectionPart = newSectionPart(textSection, child);
 152 //                                      if (sectionPart == null)
 153 //                                              throw new IllegalArgumentException("Unsupported node " + child);
 154                                         // TODO list node types in exception
 155                                 } else {
 156                                         throw new IllegalArgumentException("Unsupported node type for " + child);
 157                                 }
 158                                 if (sectionPart != null && sectionPart instanceof Control)
 159                                         ((Control) sectionPart).setLayoutData(CmsSwtUtils.fillWidth());
 160                         }
 161
 162 //                      if (!flat)
 163                         for (NodeIterator ni = section.getNode().getNodes(DbkType.section.get()); ni.hasNext();) {
 164                                 Node child = ni.nextNode();
 165                                 if (isDbk(child, DbkType.section)) {
 166                                         TextSection newSection = newTextSection(section, child);
 167                                         newSection.setLayoutData(CmsSwtUtils.fillWidth());
 168                                         refresh(newSection);
 169                                 }
 170                         }
 171                 } else {
 172                         for (Section s : section.getSubSections().values())
 173                                 refresh(s);
 174                 }
 175                 // section.layout(true, true);
 176                 long duration = System.currentTimeMillis() - begin;
 177 //              System.out.println(duration + " ms - " + DbkUtils.getTitle(section.getNode()));
 178         }
 179
 180         /** To be overridden in order to provide additional SectionPart types */
 181         protected TextSection newTextSection(Section section, Node node) {
 182                 return new TextSection(section, SWT.NONE, node);
 183         }
 184
 185         /** To be overridden in order to provide additional SectionPart types */
 186         protected SectionPart newSectionPart(TextSection textSection, Node node) {
 187                 return null;
 188         }
 189
 190         // CRUD
 191         protected Paragraph newParagraph(TextSection parent, Node node) throws RepositoryException {
 192                 Paragraph paragraph = new Paragraph(parent, parent.getStyle(), node);
 193                 updateContent(paragraph);
 194                 paragraph.setLayoutData(CmsSwtUtils.fillWidth());
 195                 paragraph.setMouseListener(getMouseListener());
 196                 paragraph.setFocusListener(getFocusListener());
 197                 return paragraph;
 198         }
 199
 200         protected DbkImg newImg(TextSection parent, Node node) {
 201                 try {
 202                         DbkImg img = new DbkImg(parent, parent.getStyle(), node, imageManager);
 203                         GridData imgGd;
 204                         if (maxMediaWidth != null) {
 205                                 imgGd = new GridData(SWT.CENTER, SWT.FILL, false, false);
 206                                 imgGd.widthHint = maxMediaWidth;
 207                                 img.setPreferredSize(new Cms2DSize(maxMediaWidth, 0));
 208                         } else {
 209                                 imgGd = CmsSwtUtils.grabWidth(SWT.CENTER, SWT.DEFAULT);
 210                         }
 211                         img.setLayoutData(imgGd);
 212                         updateContent(img);
 213                         img.setMouseListener(getMouseListener());
 214                         img.setFocusListener(getFocusListener());
 215                         return img;
 216                 } catch (RepositoryException e) {
 217                         throw new JcrException("Cannot add new image " + node, e);
 218                 }
 219         }
 220
 221         protected DbkVideo newVideo(TextSection parent, Node node) {
 222                 try {
 223                         DbkVideo video = new DbkVideo(parent, getCmsEditable().canEdit() ? SWT.NONE : SWT.READ_ONLY, node);
 224                         GridData gd;
 225                         if (maxMediaWidth != null) {
 226                                 gd = new GridData(SWT.CENTER, SWT.FILL, false, false);
 227                                 // TODO, manage size
 228 //                              gd.widthHint = maxMediaWidth;
 229 //                              gd.heightHint = (int) (gd.heightHint * 0.5625);
 230                         } else {
 231                                 gd = new GridData(SWT.CENTER, SWT.FILL, false, false);
 232 //                              gd.widthHint = video.getWidth();
 233 //                              gd.heightHint = video.getHeight();
 234                         }
 235                         video.setLayoutData(gd);
 236                         updateContent(video);
 237                         return video;
 238                 } catch (RepositoryException e) {
 239                         throw new JcrException("Cannot add new image " + node, e);
 240                 }
 241         }
 242
 243         protected DbkSectionTitle newSectionTitle(TextSection parent, Node titleNode) throws RepositoryException {
 244                 int style = parent.getStyle();
 245                 Composite titleParent = newSectionHeader(parent);
 246                 if (parent.isTitleReadOnly())
 247                         style = style | SWT.READ_ONLY;
 248                 DbkSectionTitle title = new DbkSectionTitle(titleParent, style, titleNode);
 249                 updateContent(title);
 250                 title.setMouseListener(getMouseListener());
 251                 title.setFocusListener(getFocusListener());
 252                 return title;
 253         }
 254
 255         /**
 256          * To be overridden in order to provide additional processing at the section
 257          * level.
 258          *
 259          * @return the parent to use for the {@link DbkSectionTitle}, by default
 260          *         {@link Section#getHeader()}
 261          */
 262         protected Composite newSectionHeader(TextSection section) {
 263                 return section.getHeader();
 264         }
 265
 266         protected DbkSectionTitle prepareSectionTitle(Section newSection, String titleText) throws RepositoryException {
 267                 Node sectionNode = newSection.getNode();
 268                 Node titleNode = DbkUtils.getOrAddDbk(sectionNode, DbkType.title);
 269                 getTextInterpreter().write(titleNode, titleText);
 270                 if (newSection.getHeader() == null)
 271                         newSection.createHeader();
 272                 DbkSectionTitle sectionTitle = newSectionTitle((TextSection) newSection, sectionNode);
 273                 return sectionTitle;
 274         }
 275
 276         protected void updateContent(SwtEditablePart part) throws RepositoryException {
 277                 if (part instanceof SectionPart) {
 278                         SectionPart sectionPart = (SectionPart) part;
 279                         Node partNode = sectionPart.getNode();
 280
 281                         if (part instanceof StyledControl && (sectionPart.getSection() instanceof TextSection)) {
 282                                 TextSection section = (TextSection) sectionPart.getSection();
 283                                 StyledControl styledControl = (StyledControl) part;
 284                                 if (isDbk(partNode, para)) {
 285                                         String style = partNode.hasProperty(DbkAttr.role.name())
 286                                                         ? partNode.getProperty(DbkAttr.role.name()).getString()
 287                                                         : section.getDefaultTextStyle();
 288                                         styledControl.setStyle(style);
 289                                 }
 290                         }
 291                         // use control AFTER setting style, since it may have been reset
 292
 293                         if (part instanceof EditableText) {
 294                                 EditableText paragraph = (EditableText) part;
 295                                 if (paragraph == getEdited())
 296                                         paragraph.setText(textInterpreter.raw(partNode));
 297                                 else
 298                                         paragraph.setText(textInterpreter.readSimpleHtml(partNode));
 299                         } else if (part instanceof DbkImg) {
 300                                 DbkImg editableImage = (DbkImg) part;
 301                                 // imageManager.load(partNode, part.getControl(),
 302                                 // editableImage.getPreferredImageSize());
 303                         } else if (part instanceof DbkVideo) {
 304                                 DbkVideo video = (DbkVideo) part;
 305                                 video.load(part.getControl());
 306                         }
 307                 } else if (part instanceof DbkSectionTitle) {
 308                         DbkSectionTitle title = (DbkSectionTitle) part;
 309                         title.setStyle(title.getSection().getTitleStyle());
 310                         // use control AFTER setting style
 311                         if (title == getEdited())
 312                                 title.setText(textInterpreter.read(title.getNode()));
 313                         else
 314                                 title.setText(textInterpreter.readSimpleHtml(title.getNode()));
 315                 }
 316         }
 317
 318         // OVERRIDDEN FROM PARENT VIEWER
 319         @Override
 320         protected void save(SwtEditablePart part) throws RepositoryException {
 321                 if (part instanceof EditableText) {
 322                         EditableText et = (EditableText) part;
 323                         if (!et.getEditable())
 324                                 return;
 325                         String text = ((Text) et.getControl()).getText();
 326
 327                         // String[] lines = text.split("[\r\n]+");
 328                         String[] lines = { text };
 329                         assert lines.length != 0;
 330                         saveLine(part, lines[0]);
 331                         if (lines.length > 1) {
 332                                 ArrayList<Control> toLayout = new ArrayList<Control>();
 333                                 if (part instanceof Paragraph) {
 334                                         Paragraph currentParagraph = (Paragraph) et;
 335                                         Section section = currentParagraph.getSection();
 336                                         Node sectionNode = section.getNode();
 337                                         Node currentParagraphN = currentParagraph.getNode();
 338                                         for (int i = 1; i < lines.length; i++) {
 339                                                 Node newNode = addDbk(sectionNode, para);
 340                                                 // newNode.addMixin(CmsTypes.CMS_STYLED);
 341                                                 saveLine(newNode, lines[i]);
 342                                                 // second node was create as last, if it is not the next
 343                                                 // one, it
 344                                                 // means there are some in between and we can take the
 345                                                 // one at
 346                                                 // index+1 for the re-order
 347                                                 if (newNode.getIndex() > currentParagraphN.getIndex() + 1) {
 348                                                         sectionNode.orderBefore(p(newNode.getIndex()), p(currentParagraphN.getIndex() + 1));
 349                                                 }
 350                                                 Paragraph newParagraph = newParagraph((TextSection) section, newNode);
 351                                                 newParagraph.moveBelow(currentParagraph);
 352                                                 toLayout.add(newParagraph);
 353
 354                                                 currentParagraph = newParagraph;
 355                                                 currentParagraphN = newNode;
 356                                         }
 357                                 }
 358                                 // TODO or rather return the created paragraphs?
 359                                 layout(toLayout.toArray(new Control[toLayout.size()]));
 360                         }
 361                         persistChanges(et.getNode());
 362                 }
 363         }
 364
 365         protected void saveLine(SwtEditablePart part, String line) {
 366                 if (part instanceof NodePart) {
 367                         saveLine(((NodePart) part).getNode(), line);
 368                 } else if (part instanceof PropertyPart) {
 369                         saveLine(((PropertyPart) part).getProperty(), line);
 370                 } else {
 371                         throw new IllegalArgumentException("Unsupported part " + part);
 372                 }
 373         }
 374
 375         protected void saveLine(Item item, String line) {
 376                 line = line.trim();
 377                 textInterpreter.write(item, line);
 378         }
 379
 380         @Override
 381         protected void prepare(SwtEditablePart part, Object caretPosition) {
 382                 Control control = part.getControl();
 383                 if (control instanceof Text) {
 384                         Text text = (Text) control;
 385                         if (caretPosition != null)
 386                                 if (caretPosition instanceof Integer)
 387                                         text.setSelection((Integer) caretPosition);
 388                                 else if (caretPosition instanceof Point) {
 389 //                                      layout(text);
 390 //                                      // TODO find a way to position the caret at the right place
 391 //                                      Point clickLocation = (Point) caretPosition;
 392 //                                      Point withinText = text.toControl(clickLocation);
 393 //                                      Rectangle bounds = text.getBounds();
 394 //                                      int width = bounds.width;
 395 //                                      int height = bounds.height;
 396 //                                      int textLength = text.getText().length();
 397 //                                      float area = width * height;
 398 //                                      float proportion = withinText.y * width + withinText.x;
 399 //                                      int pos = (int) (textLength * (proportion / area));
 400 //                                      text.setSelection(pos);
 401                                 }
 402                         text.setData(RWT.ACTIVE_KEYS, new String[] { "BACKSPACE", "ESC", "TAB", "SHIFT+TAB", "ALT+ARROW_LEFT",
 403                                         "ALT+ARROW_RIGHT", "ALT+ARROW_UP", "ALT+ARROW_DOWN", "RETURN", "CTRL+RETURN", "ENTER", "DELETE" });
 404                         text.setData(RWT.CANCEL_KEYS, new String[] { "RETURN", "ALT+ARROW_LEFT", "ALT+ARROW_RIGHT" });
 405                         text.addKeyListener(this);
 406                 } else if (part instanceof DbkImg) {
 407                         ((DbkImg) part).setFileUploadListener(fileUploadListener);
 408                 }
 409         }
 410
 411         // REQUIRED BY CONTEXT MENU
 412         void setParagraphStyle(Paragraph paragraph, String style) {
 413                 try {
 414                         Node paragraphNode = paragraph.getNode();
 415                         if (style == null) {// default
 416                                 if (paragraphNode.hasProperty(DbkAttr.role.name()))
 417                                         paragraphNode.getProperty(DbkAttr.role.name()).remove();
 418                         } else {
 419                                 paragraphNode.setProperty(DbkAttr.role.name(), style);
 420                         }
 421                         persistChanges(paragraphNode);
 422                         updateContent(paragraph);
 423                         layoutPage();
 424                 } catch (RepositoryException e1) {
 425                         throw new JcrException("Cannot set style " + style + " on " + paragraph, e1);
 426                 }
 427         }
 428
 429         SectionPart insertPart(Section section, Node node) {
 430                 try {
 431                         refresh(section);
 432                         layoutPage();
 433                         for (Control control : section.getChildren()) {
 434                                 if (control instanceof SectionPart) {
 435                                         SectionPart sectionPart = (SectionPart) control;
 436                                         Node partNode = sectionPart.getNode();
 437                                         if (partNode.getPath().equals(node.getPath()))
 438                                                 return sectionPart;
 439                                 }
 440                         }
 441                         throw new IllegalStateException("New section part " + node + "not found");
 442                 } catch (RepositoryException e) {
 443                         throw new JcrException("Cannot insert part " + node + " in section " + section.getNode(), e);
 444                 }
 445         }
 446
 447         void addParagraph(SectionPart partBefore, String txt) {
 448                 Section section = partBefore.getSection();
 449                 SectionPart nextSectionPart = section.nextSectionPart(partBefore);
 450                 Node newNode = addDbk(section.getNode(), para);
 451                 textInterpreter.write(newNode, txt != null ? txt : "");
 452                 if (nextSectionPart != null) {
 453                         try {
 454                                 Node nextNode = nextSectionPart.getNode();
 455                                 section.getNode().orderBefore(Jcr.getIndexedName(newNode), Jcr.getIndexedName(nextNode));
 456                         } catch (RepositoryException e) {
 457                                 throw new JcrException("Cannot order " + newNode + " before " + nextSectionPart.getNode(), e);
 458                         }
 459                 }
 460                 Jcr.save(newNode);
 461                 Paragraph paragraph = (Paragraph) insertPart(partBefore.getSection(), newNode);
 462                 edit(paragraph, 0);
 463         }
 464
 465         void deletePart(SectionPart sectionPart) {
 466                 try {
 467                         Node node = sectionPart.getNode();
 468                         Session session = node.getSession();
 469                         if (sectionPart instanceof DbkImg) {
 470                                 if (!isDbk(node, DbkType.mediaobject))
 471                                         throw new IllegalArgumentException("Node " + node + " is not a media object.");
 472                         }
 473                         node.remove();
 474                         session.save();
 475                         if (sectionPart instanceof Control)
 476                                 ((Control) sectionPart).dispose();
 477                         layoutPage();
 478                 } catch (RepositoryException e1) {
 479                         throw new JcrException("Cannot delete " + sectionPart, e1);
 480                 }
 481         }
 482
 483         void deleteSection(Section section) {
 484                 try {
 485                         Node node = section.getNode();
 486                         Session session = node.getSession();
 487                         node.remove();
 488                         session.save();
 489                         section.dispose();
 490                         layoutPage();
 491                 } catch (RepositoryException e1) {
 492                         throw new JcrException("Cannot delete " + section, e1);
 493                 }
 494         }
 495
 496         String getRawParagraphText(Paragraph paragraph) {
 497                 return textInterpreter.raw(paragraph.getNode());
 498         }
 499
 500         // COMMANDS
 501         protected void splitEdit() {
 502                 checkEdited();
 503                 try {
 504                         if (getEdited() instanceof Paragraph) {
 505                                 Paragraph paragraph = (Paragraph) getEdited();
 506                                 Text text = (Text) paragraph.getControl();
 507                                 int caretPosition = text.getCaretPosition();
 508                                 String txt = text.getText();
 509                                 String first = txt.substring(0, caretPosition);
 510                                 String second = txt.substring(caretPosition);
 511                                 Node firstNode = paragraph.getNode();
 512                                 Node sectionNode = firstNode.getParent();
 513
 514                                 // FIXME set content the DocBook way
 515                                 // firstNode.setProperty(CMS_CONTENT, first);
 516                                 Node secondNode = addDbk(sectionNode, para);
 517                                 // secondNode.addMixin(CmsTypes.CMS_STYLED);
 518
 519                                 // second node was create as last, if it is not the next one, it
 520                                 // means there are some in between and we can take the one at
 521                                 // index+1 for the re-order
 522                                 if (secondNode.getIndex() > firstNode.getIndex() + 1) {
 523                                         sectionNode.orderBefore(p(secondNode.getIndex()), p(firstNode.getIndex() + 1));
 524                                 }
 525
 526                                 // if we die in between, at least we still have the whole text
 527                                 // in the first node
 528                                 try {
 529                                         textInterpreter.write(secondNode, second);
 530                                         textInterpreter.write(firstNode, first);
 531                                 } catch (Exception e) {
 532                                         // so that no additional nodes are created:
 533                                         JcrUtils.discardUnderlyingSessionQuietly(firstNode);
 534                                         throw e;
 535                                 }
 536
 537                                 persistChanges(firstNode);
 538
 539                                 Paragraph secondParagraph = paragraphSplitted(paragraph, secondNode);
 540                                 edit(secondParagraph, 0);
 541                         } else if (getEdited() instanceof DbkSectionTitle) {
 542                                 DbkSectionTitle sectionTitle = (DbkSectionTitle) getEdited();
 543                                 Text text = (Text) sectionTitle.getControl();
 544                                 String txt = text.getText();
 545                                 int caretPosition = text.getCaretPosition();
 546                                 Section section = sectionTitle.getSection();
 547                                 Node sectionNode = section.getNode();
 548                                 Node paragraphNode = addDbk(sectionNode, para);
 549                                 // paragraphNode.addMixin(CmsTypes.CMS_STYLED);
 550
 551                                 textInterpreter.write(paragraphNode, txt.substring(caretPosition));
 552                                 textInterpreter.write(sectionNode.getNode(DbkType.title.get()), txt.substring(0, caretPosition));
 553                                 sectionNode.orderBefore(p(paragraphNode.getIndex()), p(1));
 554                                 persistChanges(sectionNode);
 555
 556                                 Paragraph paragraph = sectionTitleSplitted(sectionTitle, paragraphNode);
 557                                 // section.layout();
 558                                 edit(paragraph, 0);
 559                         }
 560                 } catch (RepositoryException e) {
 561                         throw new JcrException("Cannot split " + getEdited(), e);
 562                 }
 563         }
 564
 565         protected void mergeWithPrevious() {
 566                 checkEdited();
 567                 try {
 568                         Paragraph paragraph = (Paragraph) getEdited();
 569                         Text text = (Text) paragraph.getControl();
 570                         String txt = text.getText();
 571                         Node paragraphNode = paragraph.getNode();
 572                         if (paragraphNode.getIndex() == 1)
 573                                 return;// do nothing
 574                         Node sectionNode = paragraphNode.getParent();
 575                         Node previousNode = sectionNode.getNode(p(paragraphNode.getIndex() - 1));
 576                         String previousTxt = textInterpreter.read(previousNode);
 577                         textInterpreter.write(previousNode, previousTxt + txt);
 578                         paragraphNode.remove();
 579                         persistChanges(sectionNode);
 580
 581                         Paragraph previousParagraph = paragraphMergedWithPrevious(paragraph, previousNode);
 582                         edit(previousParagraph, previousTxt.length());
 583                 } catch (RepositoryException e) {
 584                         throw new JcrException("Cannot stop editing", e);
 585                 }
 586         }
 587
 588         protected void mergeWithNext() {
 589                 checkEdited();
 590                 try {
 591                         Paragraph paragraph = (Paragraph) getEdited();
 592                         Text text = (Text) paragraph.getControl();
 593                         String txt = text.getText();
 594                         Node paragraphNode = paragraph.getNode();
 595                         Node sectionNode = paragraphNode.getParent();
 596                         NodeIterator paragraphNodes = sectionNode.getNodes(DbkType.para.get());
 597                         long size = paragraphNodes.getSize();
 598                         if (paragraphNode.getIndex() == size)
 599                                 return;// do nothing
 600                         Node nextNode = sectionNode.getNode(p(paragraphNode.getIndex() + 1));
 601                         String nextTxt = textInterpreter.read(nextNode);
 602                         textInterpreter.write(paragraphNode, txt + nextTxt);
 603
 604                         Section section = paragraph.getSection();
 605                         Paragraph removed = (Paragraph) section.getSectionPart(nextNode.getIdentifier());
 606
 607                         nextNode.remove();
 608                         persistChanges(sectionNode);
 609
 610                         paragraphMergedWithNext(paragraph, removed);
 611                         edit(paragraph, txt.length());
 612                 } catch (RepositoryException e) {
 613                         throw new JcrException("Cannot stop editing", e);
 614                 }
 615         }
 616
 617         protected synchronized void upload(SwtEditablePart part) {
 618                 try {
 619                         if (part instanceof SectionPart) {
 620                                 SectionPart sectionPart = (SectionPart) part;
 621                                 Node partNode = sectionPart.getNode();
 622                                 int partIndex = partNode.getIndex();
 623                                 Section section = sectionPart.getSection();
 624                                 Node sectionNode = section.getNode();
 625
 626                                 if (part instanceof Paragraph) {
 627                                         // FIXME adapt to DocBook
 628 //                                      Node newNode = sectionNode.addNode(DocBookNames.DBK_MEDIAOBJECT, NodeType.NT_FILE);
 629 //                                      newNode.addNode(Node.JCR_CONTENT, NodeType.NT_RESOURCE);
 630 //                                      JcrUtils.copyBytesAsFile(sectionNode, p(newNode.getIndex()), new byte[0]);
 631 //                                      if (partIndex < newNode.getIndex() - 1) {
 632 //                                              // was not last
 633 //                                              sectionNode.orderBefore(p(newNode.getIndex()), p(partIndex - 1));
 634 //                                      }
 635 //                                      // sectionNode.orderBefore(p(partNode.getIndex()),
 636 //                                      // p(newNode.getIndex()));
 637 //                                      persistChanges(sectionNode);
 638 //                                      DbkImg img = newImg((TextSection) section, newNode);
 639 //                                      edit(img, null);
 640 //                                      layout(img.getControl());
 641                                 } else if (part instanceof DbkImg) {
 642                                         if (getEdited() == part)
 643                                                 return;
 644                                         edit(part, null);
 645                                         layoutPage();
 646                                 }
 647                         }
 648                 } catch (RepositoryException e) {
 649                         throw new JcrException("Cannot upload", e);
 650                 }
 651         }
 652
 653         protected void deepen() {
 654                 if (flat)
 655                         return;
 656                 checkEdited();
 657                 try {
 658                         if (getEdited() instanceof Paragraph) {
 659                                 Paragraph paragraph = (Paragraph) getEdited();
 660                                 Text text = (Text) paragraph.getControl();
 661                                 String txt = text.getText();
 662                                 Node paragraphNode = paragraph.getNode();
 663                                 Section section = paragraph.getSection();
 664                                 Node sectionNode = section.getNode();
 665                                 // main title
 666                                 if (section == mainSection && section instanceof TextSection && paragraphNode.getIndex() == 1
 667                                                 && !sectionNode.hasNode(DbkType.title.get())) {
 668                                         DbkSectionTitle sectionTitle = prepareSectionTitle(section, txt);
 669                                         edit(sectionTitle, 0);
 670                                         return;
 671                                 }
 672                                 Node newSectionNode = addDbk(sectionNode, DbkType.section);
 673                                 // newSectionNode.addMixin(NodeType.MIX_TITLE);
 674                                 sectionNode.orderBefore(h(newSectionNode.getIndex()), h(1));
 675
 676                                 int paragraphIndex = paragraphNode.getIndex();
 677                                 String sectionPath = sectionNode.getPath();
 678                                 String newSectionPath = newSectionNode.getPath();
 679                                 while (sectionNode.hasNode(p(paragraphIndex + 1))) {
 680                                         Node parag = sectionNode.getNode(p(paragraphIndex + 1));
 681                                         sectionNode.getSession().move(sectionPath + '/' + p(paragraphIndex + 1),
 682                                                         newSectionPath + '/' + DbkType.para.get());
 683                                         SectionPart sp = section.getSectionPart(parag.getIdentifier());
 684                                         if (sp instanceof Control)
 685                                                 ((Control) sp).dispose();
 686                                 }
 687                                 // create title
 688                                 Node titleNode = DbkUtils.addDbk(newSectionNode, DbkType.title);
 689                                 // newSectionNode.addNode(DocBookType.TITLE, DocBookType.TITLE);
 690                                 getTextInterpreter().write(titleNode, txt);
 691
 692                                 TextSection newSection = new TextSection(section, section.getStyle(), newSectionNode);
 693                                 newSection.setLayoutData(CmsSwtUtils.fillWidth());
 694                                 newSection.moveBelow(paragraph);
 695
 696                                 // dispose
 697                                 paragraphNode.remove();
 698                                 paragraph.dispose();
 699
 700                                 refresh(newSection);
 701                                 newSection.getParent().layout();
 702                                 layout(newSection);
 703                                 persistChanges(sectionNode);
 704                         } else if (getEdited() instanceof DbkSectionTitle) {
 705                                 DbkSectionTitle sectionTitle = (DbkSectionTitle) getEdited();
 706                                 Section section = sectionTitle.getSection();
 707                                 Section parentSection = section.getParentSection();
 708                                 if (parentSection == null)
 709                                         return;// cannot deepen main section
 710                                 Node sectionN = section.getNode();
 711                                 Node parentSectionN = parentSection.getNode();
 712                                 if (sectionN.getIndex() == 1)
 713                                         return;// cannot deepen first section
 714                                 Node previousSectionN = parentSectionN.getNode(h(sectionN.getIndex() - 1));
 715                                 NodeIterator subSections = previousSectionN.getNodes(DbkType.section.get());
 716                                 int subsectionsCount = (int) subSections.getSize();
 717                                 previousSectionN.getSession().move(sectionN.getPath(),
 718                                                 previousSectionN.getPath() + "/" + h(subsectionsCount + 1));
 719                                 section.dispose();
 720                                 TextSection newSection = new TextSection(section, section.getStyle(), sectionN);
 721                                 refresh(newSection);
 722                                 persistChanges(previousSectionN);
 723                         }
 724                 } catch (RepositoryException e) {
 725                         throw new JcrException("Cannot deepen " + getEdited(), e);
 726                 }
 727         }
 728
 729         protected void undeepen() {
 730                 if (flat)
 731                         return;
 732                 checkEdited();
 733                 try {
 734                         if (getEdited() instanceof Paragraph) {
 735                                 upload(getEdited());
 736                         } else if (getEdited() instanceof DbkSectionTitle) {
 737                                 DbkSectionTitle sectionTitle = (DbkSectionTitle) getEdited();
 738                                 Section section = sectionTitle.getSection();
 739                                 Node sectionNode = section.getNode();
 740                                 Section parentSection = section.getParentSection();
 741                                 if (parentSection == null)
 742                                         return;// cannot undeepen main section
 743
 744                                 // choose in which section to merge
 745                                 Section mergedSection;
 746                                 if (sectionNode.getIndex() == 1)
 747                                         mergedSection = section.getParentSection();
 748                                 else {
 749                                         Map<String, Section> parentSubsections = parentSection.getSubSections();
 750                                         ArrayList<Section> lst = new ArrayList<Section>(parentSubsections.values());
 751                                         mergedSection = lst.get(sectionNode.getIndex() - 1);
 752                                 }
 753                                 Node mergedNode = mergedSection.getNode();
 754                                 boolean mergedHasSubSections = mergedNode.hasNode(DbkType.section.get());
 755
 756                                 // title as paragraph
 757                                 Node newParagrapheNode = addDbk(mergedNode, para);
 758                                 // newParagrapheNode.addMixin(CmsTypes.CMS_STYLED);
 759                                 if (mergedHasSubSections)
 760                                         mergedNode.orderBefore(p(newParagrapheNode.getIndex()), h(1));
 761                                 String txt = getTextInterpreter().read(sectionNode.getNode(DbkType.title.get()));
 762                                 getTextInterpreter().write(newParagrapheNode, txt);
 763                                 // move
 764                                 NodeIterator paragraphs = sectionNode.getNodes(para.get());
 765                                 while (paragraphs.hasNext()) {
 766                                         Node p = paragraphs.nextNode();
 767                                         SectionPart sp = section.getSectionPart(p.getIdentifier());
 768                                         if (sp instanceof Control)
 769                                                 ((Control) sp).dispose();
 770                                         mergedNode.getSession().move(p.getPath(), mergedNode.getPath() + '/' + para.get());
 771                                         if (mergedHasSubSections)
 772                                                 mergedNode.orderBefore(p(p.getIndex()), h(1));
 773                                 }
 774
 775                                 Iterator<Section> subsections = section.getSubSections().values().iterator();
 776                                 // NodeIterator sections = sectionNode.getNodes(CMS_H);
 777                                 while (subsections.hasNext()) {
 778                                         Section subsection = subsections.next();
 779                                         Node s = subsection.getNode();
 780                                         mergedNode.getSession().move(s.getPath(), mergedNode.getPath() + '/' + DbkType.section.get());
 781                                         subsection.dispose();
 782                                 }
 783
 784                                 // remove section
 785                                 section.getNode().remove();
 786                                 section.dispose();
 787
 788                                 refresh(mergedSection);
 789                                 mergedSection.getParent().layout();
 790                                 layout(mergedSection);
 791                                 persistChanges(mergedNode);
 792                         }
 793                 } catch (RepositoryException e) {
 794                         throw new JcrException("Cannot undeepen " + getEdited(), e);
 795                 }
 796         }
 797
 798         // UI CHANGES
 799         protected Paragraph paragraphSplitted(Paragraph paragraph, Node newNode) throws RepositoryException {
 800                 Section section = paragraph.getSection();
 801                 updateContent(paragraph);
 802                 Paragraph newParagraph = newParagraph((TextSection) section, newNode);
 803                 newParagraph.setLayoutData(CmsSwtUtils.fillWidth());
 804                 newParagraph.moveBelow(paragraph);
 805                 layout(paragraph.getControl(), newParagraph.getControl());
 806                 return newParagraph;
 807         }
 808
 809         protected Paragraph sectionTitleSplitted(DbkSectionTitle sectionTitle, Node newNode) throws RepositoryException {
 810                 updateContent(sectionTitle);
 811                 Paragraph newParagraph = newParagraph(sectionTitle.getSection(), newNode);
 812                 // we assume beforeFirst is not null since there was a sectionTitle
 813                 newParagraph.moveBelow(sectionTitle.getSection().getHeader());
 814                 layout(sectionTitle.getControl(), newParagraph.getControl());
 815                 return newParagraph;
 816         }
 817
 818         protected Paragraph paragraphMergedWithPrevious(Paragraph removed, Node remaining) throws RepositoryException {
 819                 Section section = removed.getSection();
 820                 removed.dispose();
 821
 822                 Paragraph paragraph = (Paragraph) section.getSectionPart(remaining.getIdentifier());
 823                 updateContent(paragraph);
 824                 layout(paragraph.getControl());
 825                 return paragraph;
 826         }
 827
 828         protected void paragraphMergedWithNext(Paragraph remaining, Paragraph removed) throws RepositoryException {
 829                 removed.dispose();
 830                 updateContent(remaining);
 831                 layout(remaining.getControl());
 832         }
 833
 834         // UTILITIES
 835         protected String p(Integer index) {
 836                 StringBuilder sb = new StringBuilder(6);
 837                 sb.append(para.get()).append('[').append(index).append(']');
 838                 return sb.toString();
 839         }
 840
 841         protected String h(Integer index) {
 842                 StringBuilder sb = new StringBuilder(5);
 843                 sb.append(DbkType.section.get()).append('[').append(index).append(']');
 844                 return sb.toString();
 845         }
 846
 847         // GETTERS / SETTERS
 848         public Section getMainSection() {
 849                 return mainSection;
 850         }
 851
 852         public boolean isFlat() {
 853                 return flat;
 854         }
 855
 856         public TextInterpreter getTextInterpreter() {
 857                 return textInterpreter;
 858         }
 859
 860         // KEY LISTENER
 861         @Override
 862         public void keyPressed(KeyEvent ke) {
 863                 if (log.isTraceEnabled())
 864                         log.trace(ke);
 865
 866                 if (getEdited() == null)
 867                         return;
 868                 boolean altPressed = (ke.stateMask & SWT.ALT) != 0;
 869                 boolean shiftPressed = (ke.stateMask & SWT.SHIFT) != 0;
 870                 boolean ctrlPressed = (ke.stateMask & SWT.CTRL) != 0;
 871
 872                 try {
 873                         // Common
 874                         if (ke.keyCode == SWT.ESC) {
 875 //                              cancelEdit();
 876                                 saveEdit();
 877                         } else if (ke.character == '\r') {
 878                                 if (!shiftPressed)
 879                                         splitEdit();
 880                         } else if (ke.character == 'z') {
 881                                 if (ctrlPressed)
 882                                         cancelEdit();
 883                         } else if (ke.character == 'S') {
 884                                 if (ctrlPressed)
 885                                         saveEdit();
 886                         } else if (ke.character == '\t') {
 887                                 if (!shiftPressed) {
 888                                         deepen();
 889                                 } else if (shiftPressed) {
 890                                         undeepen();
 891                                 }
 892                         } else {
 893                                 if (getEdited() instanceof Paragraph) {
 894                                         Paragraph paragraph = (Paragraph) getEdited();
 895                                         Section section = paragraph.getSection();
 896                                         if (altPressed && ke.keyCode == SWT.ARROW_RIGHT) {
 897                                                 edit(section.nextSectionPart(paragraph), 0);
 898                                         } else if (altPressed && ke.keyCode == SWT.ARROW_LEFT) {
 899                                                 edit(section.previousSectionPart(paragraph), 0);
 900                                         } else if (ke.character == SWT.BS) {
 901                                                 Text text = (Text) paragraph.getControl();
 902                                                 int caretPosition = text.getCaretPosition();
 903                                                 if (caretPosition == 0) {
 904                                                         mergeWithPrevious();
 905                                                 }
 906                                         } else if (ke.character == SWT.DEL) {
 907                                                 Text text = (Text) paragraph.getControl();
 908                                                 int caretPosition = text.getCaretPosition();
 909                                                 int charcount = text.getCharCount();
 910                                                 if (caretPosition == charcount) {
 911                                                         mergeWithNext();
 912                                                 }
 913                                         }
 914                                 }
 915                         }
 916                 } catch (Exception e) {
 917                         ke.doit = false;
 918                         notifyEditionException(e);
 919                 }
 920         }
 921
 922         @Override
 923         public void keyReleased(KeyEvent e) {
 924         }
 925
 926         // MOUSE LISTENER
 927         @Override
 928         protected MouseListener createMouseListener() {
 929                 return new ML();
 930         }
 931
 932         private class ML extends MouseAdapter {
 933                 private static final long serialVersionUID = 8526890859876770905L;
 934
 935                 @Override
 936                 public void mouseDoubleClick(MouseEvent e) {
 937                         if (e.button == 1) {
 938                                 Control source = (Control) e.getSource();
 939                                 SwtEditablePart composite = findDataParent(source);
 940                                 Point point = new Point(e.x, e.y);
 941                                 if (composite instanceof DbkImg) {
 942                                         if (getCmsEditable().canEdit()) {
 943                                                 if (getCmsEditable().isEditing() && !(getEdited() instanceof DbkImg)) {
 944                                                         if (source == mainSection)
 945                                                                 return;
 946                                                         SwtEditablePart part = findDataParent(source);
 947                                                         upload(part);
 948                                                 } else {
 949                                                         getCmsEditable().startEditing();
 950                                                 }
 951                                         }
 952                                 } else if (source instanceof Label) {
 953                                         Label lbl = (Label) source;
 954                                         Rectangle bounds = lbl.getBounds();
 955                                         float width = bounds.width;
 956                                         float height = bounds.height;
 957                                         float textLength = lbl.getText().length();
 958                                         float area = width * height;
 959                                         float charArea = area / textLength;
 960                                         float lines = textLength / width;
 961                                         float proportion = point.y * width + point.x;
 962                                         int pos = (int) (textLength * (proportion / area));
 963                                         // TODO refine it
 964                                         edit(composite, (Integer) pos);
 965                                 } else {
 966                                         edit(composite, source.toDisplay(point));
 967                                 }
 968                         }
 969                 }
 970
 971                 @Override
 972                 public void mouseDown(MouseEvent e) {
 973                         if (getCmsEditable().isEditing()) {
 974                                 if (e.button == 3) {
 975                                         SwtEditablePart composite = findDataParent((Control) e.getSource());
 976                                         if (styledTools != null) {
 977                                                 List<String> styles = getAvailableStyles(composite);
 978                                                 styledTools.show(composite, new Point(e.x, e.y), styles);
 979                                         }
 980                                 }
 981                         }
 982                 }
 983
 984                 @Override
 985                 public void mouseUp(MouseEvent e) {
 986                 }
 987         }
 988
 989         protected List<String> getAvailableStyles(SwtEditablePart editablePart) {
 990                 return new ArrayList<>();
 991         }
 992
 993         public void setMaxMediaWidth(Integer maxMediaWidth) {
 994                 this.maxMediaWidth = maxMediaWidth;
 995         }
 996
 997         public void setShowMainTitle(boolean showMainTitle) {
 998                 this.showMainTitle = showMainTitle;
 999         }
1000
1001         public String getDefaultSectionStyle() {
1002                 return defaultSectionStyle;
1003         }
1004
1005         public void setDefaultSectionStyle(String defaultSectionStyle) {
1006                 this.defaultSectionStyle = defaultSectionStyle;
1007         }
1008
1009         // FILE UPLOAD LISTENER
1010         private class FUL implements FileUploadListener {
1011                 public void uploadProgress(FileUploadEvent event) {
1012                         // TODO Monitor upload progress
1013                 }
1014
1015                 public void uploadFailed(FileUploadEvent event) {
1016                         throw new RuntimeException("Upload failed " + event, event.getException());
1017                 }
1018
1019                 public void uploadFinished(FileUploadEvent event) {
1020                         for (FileDetails file : event.getFileDetails()) {
1021                                 if (log.isDebugEnabled())
1022                                         log.debug("Received: " + file.getFileName());
1023                         }
1024                         mainSection.getDisplay().syncExec(new Runnable() {
1025                                 @Override
1026                                 public void run() {
1027                                         saveEdit();
1028                                 }
1029                         });
1030                         FileUploadHandler uploadHandler = (FileUploadHandler) event.getSource();
1031                         uploadHandler.dispose();
1032                 }
1033         }
1034 }