Example usage for com.google.gwt.dom.client NodeList getLength

List of usage examples for com.google.gwt.dom.client NodeList getLength

  1. HOME
  2. Java
  3. com.google.gwt
  4. com.google.gwt.dom.client.*
  5. NodeList
  6. getLength

Introduction

In this page you can find the example usage for com.google.gwt.dom.client NodeList getLength.

Prototype

public int getLength()

Source Link

Usage

From source file:org.nsesa.editor.gwt.core.client.ui.overlay.document.OverlayStrategySupport.java

License:EUPL

/**
 * Returns a list of all the amendable elements under this element by
 * enumerating the elements under the 'children' element of this element.
 * <p/>/*from  w ww  .ja va 2s.c  om*/
 * If there is no children element, an empty list will be returned.
 *
 * @return the list of children.
 */
public final List<Element> getChildren(Element element) {
    NodeList<Node> nodes = element.getChildNodes();
    List<Element> amendableElements = new ArrayList<Element>();
    int length = 0;
    try {
        length = nodes.getLength();
    } catch (Exception e) {
        LOG.log(Level.WARNING, "Caught exception (probably under Chrome): " + e, e);
    }
    for (int i = 0; i < length; i++) {
        if (nodes.getItem(i).getNodeType() == Node.ELEMENT_NODE) {
            Element el = nodes.getItem(i).cast();

            // do not include any of the 'property' tags
            // these elements are not included in our tree, but can be searched by their parent later on, to
            // get certain properties such as content, num, ...
            if (!asProperties.contains(el.getAttribute("type").toUpperCase())) {
                amendableElements.add(el);
            }
        }
    }
    return amendableElements;
}

From source file:org.nsesa.editor.gwt.core.client.ui.overlay.HTMLFormatter.java

License:EUPL

/**
 * This method is in facto responsible with the xml generation. For each child of the given
 * overlay widget ({@link org.nsesa.editor.gwt.core.client.ui.overlay.document.OverlayWidget#getChildOverlayWidgets()})
 * it tries to find out the corresponding browser element node and to extract from there the text content and the
 * css attributes values. The process continue then recursively for all descendants of the original overlay widget.
 *
 * @param widget The overlay widget that will be processed
 * @param depth/*from   www. j a  va2 s .  c  om*/
 * @return Xml representation of overlay widget as String
 */
public String toHTMLElement(final OverlayWidget widget, boolean withIndentation, int depth) {

    final StringBuilder sb = new StringBuilder();
    final String indent = withIndentation ? TextUtils.repeat(depth, "  ") : "";
    if (!widget.getOverlayElement().getClassName().contains(widget.getType()))
        widget.getOverlayElement().addClassName(widget.getType());
    sb.append(indent).append("<span class=\"").append(widget.getOverlayElement().getClassName())
            .append("\" data-type=\"").append(widget.getType()).append("\"").append(" data-ns=\"")
            .append(widget.getNamespaceURI()).append("\"");
    //get the attributes
    final LinkedHashMap<String, String> attrs = widget.getAttributes();
    if (!attrs.isEmpty()) {
        for (final Map.Entry<String, String> entry : attrs.entrySet()) {
            // do not add the class attribute
            if (!"class".equalsIgnoreCase(entry.getKey())) {
                if (entry.getValue() != null && entry.getValue().length() > 0) {
                    sb.append(" ").append(entry.getKey()).append("=").append("\"").append(entry.getValue())
                            .append("\"");
                }
            }
        }
    }
    // add class names
    sb.append(">");
    Element element = widget.getOverlayElement();
    NodeList<Node> nodes = element.getChildNodes();
    int length = nodes.getLength();
    if (length == 0) {
        // the root is all the time a new one
        // apply xml transformation for children
        for (final OverlayWidget child : widget.getChildOverlayWidgets()) {
            sb.append(toHTMLElement(child, false, depth + 1).trim());
        }
    } else {
        for (int i = 0; i < length; i++) {
            final short nodeType = nodes.getItem(i).getNodeType();
            Element childElement = nodes.getItem(i).cast();
            switch (nodeType) {
            case Node.ELEMENT_NODE:
                // get the amendable widget corresponding to this child and apply xml transformation
                // hopefully there is one amendable widget linked to this node
                OverlayWidget child = null;
                // try to find out a amendable widget linked to childElement
                for (OverlayWidget aw : widget.getChildOverlayWidgets()) {
                    if (aw.getOverlayElement().equals(childElement)) {
                        child = aw;
                        break;
                    }
                }
                if (child != null) {
                    sb.append(toHTMLElement(child, false, depth + 1).trim());
                } else {
                    LOG.warning("No amendable child widget found for element " + childElement.getNodeName());
                    sb.append(DOM.toString((com.google.gwt.user.client.Element) childElement.cast()));
                }
                break;
            case Node.TEXT_NODE:
                sb.append(TextUtils.escapeXML(nodes.getItem(i).getNodeValue().trim()));
                //sb.append(nodes.getItem(i).getNodeValue().trim());
                break;
            case Node.DOCUMENT_NODE:
                LOG.log(Level.WARNING, "There should be no document node here for " + element.getInnerHTML());
                break;
            }
        }
    }
    sb.append("</span>");
    return sb.toString();
}

From source file:org.nsesa.editor.gwt.core.client.util.NodeUtil.java

License:EUPL

public static Text getText(final Node node, boolean includeChildren) {
    final NodeList<Node> childNodes = node.getChildNodes();
    for (int i = 0; i < childNodes.getLength(); i++) {
        Node child = childNodes.getItem(i);
        if (child.getNodeType() == Node.TEXT_NODE) {
            return (Text) child;
        } else if (child.getNodeType() == Node.ELEMENT_NODE) {
            return getText(child, includeChildren);

        }/*from   w  w  w  . j  a  v  a2s . co m*/
    }
    return null;
}

From source file:org.nsesa.editor.gwt.core.client.util.NodeUtil.java

License:EUPL

public static void walk(final Node node, final NodeVisitor visitor) {
    visitor.visit(node);//from www  .jav a2  s  .c o m
    final NodeList<Node> childNodes = node.getChildNodes();
    for (int i = 0; i < childNodes.getLength(); i++) {
        Node child = childNodes.getItem(i);
        walk(child, visitor);
    }
}

From source file:org.nuxeo.ecm.platform.annotations.gwt.client.util.Visitor.java

License:Apache License

public void visit(Node node) {
    if (startNode == node) {
        processing = true;//from   ww  w . j av  a2  s  .  c  o  m
    } else if (endNode == node) {
        processing = false;
    }
    if (processor.doBreak()) {
        return;
    }

    NodeList list = node.getChildNodes();
    if (list == null || list.getLength() == 0) {
        processIf(node);
    } else {
        int length = list.getLength();
        Node[] nodes = new Node[list.getLength()];
        for (int x = 0; x < length; x++) {
            nodes[x] = list.getItem(x);
        }
        processIf(node);
        for (int x = 0; x < length; x++) {
            visit(nodes[x]);
        }
    }

}

From source file:org.nuxeo.ecm.platform.annotations.gwt.client.util.XPathUtil.java

License:Apache License

public List<Node> getNode(String xpath, Document document) {
    List<Node> nodes = new ArrayList<Node>();
    if (xpath.startsWith("//")) {
        xpath = xpath.substring(2);/*from  w w w . j a  v a 2s .  c  o m*/
        NodeList<Element> n = document.getElementsByTagName(xpath);
        for (int x = 0; x < n.getLength(); x++) {
            nodes.add(n.getItem(x));
        }
        return nodes;
    }
    Log.debug("XPathUtil#getNode -- xpath: " + xpath);
    String[] paths = xpath.split("/");
    Node result = document;
    for (String path : paths) {
        if ("".equals(path)) {
            continue;
        }
        NodeList<Node> nodeList = result.getChildNodes();
        String name = path.substring(0, path.indexOf("["));
        int index = Integer.parseInt(path.substring(path.indexOf("[") + 1, path.indexOf("]")));
        int counter = 1;
        for (int x = 0; x < nodeList.getLength(); x++) {
            Node node = nodeList.getItem(x);
            if (node.getNodeName().equalsIgnoreCase(name)) {
                if (isIgnored(node)) {// considered as text node
                    continue;
                }
                if (counter == index) {
                    result = node;
                    break;
                }
                counter++;
            }
        }

    }
    nodes.add(result);
    Log.debug("XPathUtil#getNode -- end function: ");
    return nodes;
}

From source file:org.nuxeo.ecm.platform.annotations.gwt.client.view.AnnotatedDocument.java

License:Apache License

private static void preDecorateDocument(Document document) {
    Log.debug("Predecorate document !");
    NodeList<Element> elements = document.getElementsByTagName("img");
    for (int x = 0; x < elements.getLength(); x++) {
        Element element = elements.getItem(x);
        DivElement divElement = document.createDivElement();
        divElement.getStyle().setProperty("position", "relative");
        divElement.setClassName(AnnotationConstant.IGNORED_ELEMENT);
        String path = xPathUtil.getXPath(element);
        path = XPathUtil.toIdableName(path);
        divElement.setId(path);/* w w  w .j av  a2  s.c o  m*/
        Element nextSibling = element.getNextSiblingElement();
        Element parent = element.getParentElement();
        if (nextSibling == null) {
            parent.appendChild(divElement);
        } else {
            parent.insertBefore(divElement, nextSibling);
        }
        divElement.appendChild(element);
    }
}

From source file:org.nuxeo.ecm.platform.annotations.gwt.client.view.AnnotatedDocument.java

License:Apache License

public void updateSelectedAnnotation(int index) {
    Annotation annotation = annotations.get(index);
    BodyElement bodyElement = Document.get().getBody();
    if (!(annotation.getXpointer() instanceof NullRangeXPointer)) {
        NodeList<Element> spans = bodyElement.getElementsByTagName("span");
        NodeList<Element> as = bodyElement.getElementsByTagName("div");
        int scrollTop = Integer.MAX_VALUE;
        int scrollLeft = Integer.MAX_VALUE;
        for (int x = 0; x < spans.getLength(); x++) {
            Element element = spans.getItem(x);
            if (processElement(annotation, element)) {
                int[] absTopLeft = Utils.getAbsoluteTopLeft(element, Document.get());
                if (absTopLeft[0] < scrollTop) {
                    scrollTop = absTopLeft[0];
                }/*from  w w w . j av a2s . c  o  m*/
                if (absTopLeft[1] < scrollLeft) {
                    scrollLeft = absTopLeft[1];
                }
            }
        }
        for (int x = 0; x < as.getLength(); x++) {
            Element element = as.getItem(x);
            if (processElement(annotation, element)) {
                int[] absTopLeft = Utils.getAbsoluteTopLeft(element, Document.get());
                if (absTopLeft[0] < scrollTop) {
                    scrollTop = absTopLeft[0];
                }
                if (absTopLeft[1] < scrollLeft) {
                    scrollLeft = absTopLeft[1];
                }
            }
        }

        scrollLeft = scrollLeft == Integer.MAX_VALUE ? 0 : scrollLeft;
        scrollTop = scrollTop == Integer.MAX_VALUE ? 0 : scrollTop;
        Window.scrollTo(scrollLeft, scrollTop);
    }
}

From source file:org.nuxeo.ecm.platform.annotations.gwt.client.view.AnnotatedDocument.java

License:Apache License

public void hideAnnotations() {
    BodyElement bodyElement = Document.get().getBody();
    NodeList<Element> spans = bodyElement.getElementsByTagName("span");
    NodeList<Element> divs = bodyElement.getElementsByTagName("div");

    for (int x = 0; x < spans.getLength(); x++) {
        Element element = spans.getItem(x);
        CSSClassManager manager = new CSSClassManager(element);
        if (manager.isClassPresent(AnnotationConstant.DECORATE_CLASS_NAME)) {
            manager.removeClass(AnnotationConstant.DECORATE_CLASS_NAME);
            manager.addClass(AnnotationConstant.DECORATE_NOT_CLASS_NAME);
        }//from w ww  .jav a 2 s .c o m
    }

    for (int x = 0; x < divs.getLength(); x++) {
        Element element = divs.getItem(x);
        CSSClassManager manager = new CSSClassManager(element);
        if (manager.isClassPresent(AnnotationConstant.DECORATE_CLASS_NAME)) {
            manager.removeClass(AnnotationConstant.DECORATE_CLASS_NAME);
            manager.addClass(AnnotationConstant.DECORATE_NOT_CLASS_NAME);
        }
    }
    setAnnotationsShown(false);
}

From source file:org.nuxeo.ecm.platform.annotations.gwt.client.view.AnnotatedDocument.java

License:Apache License

public void showAnnotations() {
    BodyElement bodyElement = Document.get().getBody();
    NodeList<Element> spans = bodyElement.getElementsByTagName("span");
    NodeList<Element> divs = bodyElement.getElementsByTagName("div");

    for (int x = 0; x < spans.getLength(); x++) {
        Element element = spans.getItem(x);
        CSSClassManager manager = new CSSClassManager(element);
        if (manager.isClassPresent(AnnotationConstant.DECORATE_NOT_CLASS_NAME)) {
            manager.removeClass(AnnotationConstant.DECORATE_NOT_CLASS_NAME);
            manager.addClass(AnnotationConstant.DECORATE_CLASS_NAME);
        }/*from ww w  .j a v  a 2 s  . com*/
        if (manager.isClassPresent(AnnotationConstant.SELECTED_NOT_CLASS_NAME)) {
            manager.removeClass(AnnotationConstant.SELECTED_NOT_CLASS_NAME);
            manager.addClass(AnnotationConstant.SELECTED_CLASS_NAME);
        }
    }

    for (int x = 0; x < divs.getLength(); x++) {
        Element element = divs.getItem(x);
        CSSClassManager manager = new CSSClassManager(element);
        if (manager.isClassPresent(AnnotationConstant.DECORATE_NOT_CLASS_NAME)) {
            manager.removeClass(AnnotationConstant.DECORATE_NOT_CLASS_NAME);
            manager.addClass(AnnotationConstant.DECORATE_CLASS_NAME);
        }
        if (manager.isClassPresent(AnnotationConstant.SELECTED_NOT_CLASS_NAME)) {
            manager.removeClass(AnnotationConstant.SELECTED_NOT_CLASS_NAME);
            manager.addClass(AnnotationConstant.SELECTED_CLASS_NAME);
        }
    }
    setAnnotationsShown(true);
}