Examples of org.waveprotocol.wave.client.editor.content.ContentNode

Package org.waveprotocol.wave.client.editor.content

Examples of org.waveprotocol.wave.client.editor.content.ContentNode

org.waveprotocol.wave.client.editor.content.ContentNode
Content node. Base class for ContentTextNode and ContentElement. TODO(danilatos): Thoroughly update the javadoc for this class See {@link ContentDocument} for more...In this context, the word "nodelet" is used to refer to the JSO dom nodes, to avoid confusion with the word "node", which when unqualified, refers to subclasses of ContentNode. The handleXXX methods with boolean return values are called to see if this node will handle a given event. If the method handles the event, it will return true, and no further processing of the event is needed. Otherwise, it will return false. The methods may trigger an operation event if they handle the browser event. (They might not, for example to simply cause the browser event to be ignored, and prevent the default handling by returning true) TODO(danilatos): Extract out an interface for these methods. NOTE(danilatos): By default, here and in subclasses, if a method's name is ambiguous as to whether it refers to the content or the html, it refers to the html.

    Point<ContentNode> point = mapper.locate(start);
    CMutableDocument doc = point.getContainer().getMutableDoc();
    LineContainers.checkNotParagraphDocument(doc);


    // get line element we are in:
    ContentNode first = LineContainers.getRelatedLineElement(doc, point);


    if (first == null) {
      return null;
    }


    // go through the lines one by one:
    return Line.fromLineElement(first.asElement());
  }

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   * Rescans all gadget children to update the values stored in the gadget
   * object.
   */
  private void rescanGadgetXmlElements() {
    log("Rescanning elements");
    ContentNode childNode = element.getFirstChild();
    while (childNode != null) {
      processChild(GadgetElementChild.create(childNode));
      childNode = childNode.getNextSibling();
    }
  }

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      SelectionMatcher selectionMatcher) {


    Preconditions.checkArgument(firstItem instanceof ContentElement,
        "firstItem must be an instance of ContentElement ", firstItem.getClass());


    ContentNode prev = null;
    HtmlStack helper = new HtmlStack(destParent);


    for (ContentNode node = firstItem;
         node != null && node != stopAt;
         prev = node, node = view.getNextSibling(node)) {

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    Point<ContentNode> point = mapper.locate(start);
    CMutableDocument doc = point.getContainer().getMutableDoc();
    LineContainers.checkNotParagraphDocument(doc);


    // get line element we are in:
    ContentNode first = LineContainers.getRelatedLineElement(doc, point);


    if (first == null) {
      return null;
    }


    // go through the lines one by one:
    return Line.fromLineElement(first.asElement());
  }

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    if (cp.getContainer().isTextNode()) {
      ContentTextNode textNode = (ContentTextNode) cp.getContainer();
      return cp.getTextOffset() <= textNode.getLength();
    } else {
      ContentNode nodeAfter = cp.getNodeAfter();
      return nodeAfter == null || cp.getContainer() == nodeAfter.getParentElement();
    }
  }

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    // Valid position for cursor, so stop where we are:
    if (!isKnownInvalidTopContainerForCursor(container)) {
      return point;
    }


    ContentNode nodeAfter = point.getNodeAfter();
    ContentNode newContainer;


    if (nodeAfter == null) {
      // place the cursor in the right-most valid child of the current container
      newContainer = validContainerView.getLastChild(container);
    } else {
      // we want to place the cursor at the end of the previous node
      newContainer = validContainerView.getVisibleNodePrevious(nodeAfter);
      if (newContainer != null) {
        // Special-case: if nodeAfter is already valid, find the previous valid point:
        if (newContainer.equals(nodeAfter)) {
          // Check to see if we've found ourselves before a visible, valid point:
          newContainer = validContainerView.getVisibleNodePrevious(nodeAfter.getParentElement());
          if (newContainer == nodeAfter.getParentElement()) {
            return Point.before(validContainerView, nodeAfter);
          }

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  /** {@inheritDoc} */
  public Point<ContentNode> getFirstValidSelectionPoint() {
    ContentElement root = renderedContentView.getDocumentElement();
    // Must use filtered view, because of assertion in findOrCreateValidSelectionPoint
    ContentNode first = renderedContentView.getFirstChild(root);


    // assert there's no transparent wrapper, which would render the point invalid
    // for many uses
    assert first == null || first.getParentElement() == root;


    Point<ContentNode> point = findOrCreateValidSelectionPoint(Point.inElement(root, first));
    if (point == null) {
      throw new RuntimeException("Could not create a valid selection point!");
    }

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        // Ensure methods we call on the text node operate on the same view as us
        assert wrapper.getFilteredHtmlView() == filteredHtml;


        Node htmlNodeBefore = filteredHtml.getPreviousSibling(firstWrapper.getImplNodelet());
        Element htmlParent = filteredHtml.getParentElement(node);
        ContentNode cnodeAfter = contentRange.getNodeAfter();
        Node htmlNodeAfter = cnodeAfter == null ? null : cnodeAfter.getImplNodelet();
        htmlRange = RestrictedRange.between(
            htmlNodeBefore, Point.inElement(htmlParent, htmlNodeAfter));


        if (partOfMutatingRange(filteredHtml.asText(previousSelectionStart.getContainer()))) {
          // This must be true if getWrapper worked correctly. Program error

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        // TODO(patcoleman): see if being zero here is actually a problem.
        // assert selNode.getLength() > 0;


        if (selOffset == 0 && firstWrapper.getImplNodelet() == selNode) {
          // if we are at beginning of mutating node
          ContentNode prev = renderedContent.getPreviousSibling(firstWrapper);
          if (prev != null && prev.isTextNode()) {
            firstWrapper = (ContentTextNode)prev;
          }
        } else {
          ContentNode nextNode = renderedContent.getNextSibling(lastWrapper);
          Node nextNodelet = nextNode != null ? nextNode.getImplNodelet() : null;
          if (selOffset == selNode.getLength() &&
              filteredHtml.getNextSibling(selNode) == nextNodelet) {
            // if we are at end of mutating node
            if (nextNode != null && nextNode.isTextNode()) {
              lastWrapper = (ContentTextNode)nextNode;
            }
          }
        }
      } finally {

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    }


    if (keySignalType == KeySignalType.DELETE) {
      refreshEditorWithCaret(event);
      caret = cachedSelection.getFocus();
      ContentNode node = caret.getContainer();


      editorInteractor.checkpoint(new FocusedContentRange(caret));


      switch (EventWrapper.getKeyCombo(event)) {
        case BACKSPACE:

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