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

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

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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:client.net.sf.saxon.ce.dom.HTMLWriter.java

License:Mozilla Public License

/**
* Start of an element.//  w ww.  j av  a  2 s  . c o m
*/

public void startElement(int nameCode, int properties) throws XPathException {
    String localName = namePool.getLocalName(nameCode);
    String prefix = namePool.getPrefix(nameCode);
    String uri = namePool.getURI(nameCode);

    // TODO: For XML Writer it should write prefixes in a
    // way compliant with the XSLT2.0 specification - using xsl:output attributes
    Element element = null;
    if (uri != null && !uri.isEmpty()) {
        if (mode == WriteMode.XML && !prefix.equals("")) {
            element = createElementNS(document, uri, prefix + ":" + localName);

        } else {
            // no svg specific prefix now used, for compliance with HTML5
            element = createElementNS(document, uri, localName);
        }
    }

    // if there's no namespace - or no namespace support
    if (element == null) {
        element = document.createElement(localName);
    }
    // special case for html element: write to the document node
    Controller controller = pipe.getController();
    if (controller != null && controller.getApiCommand() == APIcommand.UPDATE_HTML
            && (localName.equals("html") || localName.equals("head") || localName.equals("body"))) {
        if (localName.equals("html")) {
            element = (Element) document.getFirstChild();
        } else {
            element = (Element) document.getElementsByTagName(localName.toUpperCase()).getItem(0);
            NodeList<Node> nodes = element.getChildNodes();
            for (int n = 0; n < nodes.getLength(); n++) {
                Node node = nodes.getItem(n);
                node.removeFromParent();
            }
        }
        currentNode = element;
        level++;
        return;
    }
    if (nextSibling != null && level == 0) {
        currentNode.insertBefore(element, nextSibling);
    } else {
        try {
            currentNode.appendChild(element);
        } catch (JavaScriptException err) {
            if (uri.equals(NamespaceConstant.IXSL)) {
                XPathException xpe = new XPathException(
                        "Error on adding IXSL element to the DOM, the IXSL namespace should be added to the 'extension-element-prefixes' list.");
                throw (xpe);
            } else {
                throw (new XPathException(err.getMessage()));
            }
        } catch (Exception exc) {
            XPathException xpe = new XPathException(
                    "Error on startElement in HTMLWriter for element '" + localName + "': " + exc.getMessage());
            throw (xpe);
        }
    }
    currentNode = element;
    level++;
}

From source file:client.net.sf.saxon.ce.trans.update.InsertAction.java

License:Mozilla Public License

/**
 * Apply the pending update action to the affected nodes
 *
 * @param context the XPath evaluation context
 *//*from  w  w w  .  j a  v  a 2  s  .co m*/

public void apply(XPathContext context) {
    switch (position) {
    case FIRST: {
        NodeList list = content.getChildNodes();
        int count = list.getLength();
        for (int i = count - 1; i >= 0; i--) {
            targetNode.insertFirst(list.getItem(i));
        }
        break;
    }
    case LAST: {
        while (content.hasChildNodes()) {
            targetNode.appendChild(content.getFirstChild());
        }
        break;
    }
    case BEFORE: {
        Node refNode = targetNode.getChild(position);
        NodeList list = content.getChildNodes();
        int count = list.getLength();
        for (int i = 0; i < count; i++) {
            targetNode.insertBefore(list.getItem(i), refNode);
        }
        break;
    }
    case AFTER: {
        Node refNode = targetNode.getChild(position);
        NodeList list = content.getChildNodes();
        int count = list.getLength();
        for (int i = count - 1; i >= 0; i--) {
            targetNode.insertAfter(list.getItem(i), refNode);
        }
        break;
    }
    default:
        throw new UnsupportedOperationException("Unknown insert position " + position);
    }
}

From source file:client.net.sf.saxon.ce.Xslt20ProcessorImpl.java

License:Mozilla Public License

/**
 * The entry point for transforms initiate on module load,
 * fetches settings from the <code>application/xslt+xml style</code> element
 *///www  .j a  v  a2s.c o m
public void doTransformation() {
    Logger logger = Logger.getLogger("Xstl20Processor");
    try {
        NodeList<Element> scripts = getScriptsOnLoad();
        String sourceURI = null;
        String styleURI = null;
        String initialMode = null;
        String initialTemplate = null;
        boolean styleElementExists = false;
        for (int i = 0; i < scripts.getLength(); i++) {
            String type = scripts.getItem(i).getAttribute("type");
            if (type.equals("application/xslt+xml")) {
                styleElementExists = true;
                styleURI = scripts.getItem(i).getAttribute("src");
                sourceURI = scripts.getItem(i).getAttribute("data-source");
                initialMode = scripts.getItem(i).getAttribute("data-initial-mode");
                initialTemplate = scripts.getItem(i).getAttribute("data-initial-template");
                break;
            }
        }

        if (!styleElementExists) {
            logger.info("Saxon-CE API initialised");
            return;
        } else if (styleURI == null) {
            throw new XPathException("No XSLT stylesheet reference found");
        }

        JavaScriptObject sourceDoc = null;
        String absSourceURI = null;
        if (sourceURI != null && sourceURI.length() != 0) {
            String pageHref = Window.Location.getHref();
            absSourceURI = (new URI(pageHref).resolve(sourceURI)).toString();
            if (pageHref.equals(absSourceURI)) {
                throw new XPathException("Cannot load XML with same URI as the host page");
            }

            sourceDoc = SaxonceApi.createAsyncDoc(absSourceURI); // config.buildDocument(absSourceURI);

        } else if (initialTemplate == null) {
            throw new XPathException(
                    "No data-source attribute or data-initial-template value found - one is required");
        }

        String absStyleURI = (new URI(Window.Location.getHref()).resolve(styleURI)).toString();
        DocumentInfo styleDoc;
        try {
            styleDoc = config.buildDocument(absStyleURI);
        } catch (XPathException e) {
            String reportURI = (absSourceURI != null) ? absSourceURI : styleURI;
            throw new XPathException("Failed to load XSLT stylesheet " + reportURI + ": " + e.getMessage());
        }
        config.getDocumentPool().add(styleDoc, absStyleURI); // where document('') can find it
        Element body = getBodyElement();

        localController.setInitialMode(initialMode);
        localController.setInitialTemplate(initialTemplate);
        localController.setApiCommand(APIcommand.UPDATE_HTML);
        localController.setTargetNode(Document.get()); // target node is the document node

        renderXML(sourceDoc, styleDoc, body); // principle output is to the body element

    } catch (Exception err) {
        logger.log(Level.SEVERE, err.getMessage());
    }
}

From source file:com.agnie.gwt.common.client.widget.ListBox.java

License:Open Source License

/**
 * To set ListItem Label as it's Title(tooltip) for each ListItem.
 *///from w ww.  j av a 2  s.c  om
private void setTitle() {
    SelectElement selectElement = SelectElement.as(this.getElement());
    NodeList<OptionElement> options = selectElement.getOptions();
    for (int i = 0; i < options.getLength(); i++) {
        T t = this.list.get(i);
        options.getItem(i).setTitle(gt.getText(t));
    }
}

From source file:com.alkacon.geranium.client.util.DomUtil.java

License:Open Source License

/**
 * Returns all elements with the given CSS class and tag name including the root element.<p>
 * //from  w w  w . j av a  2  s.c  om
 * @param className the class name to look for
 * @param tag the tag
 * @param rootElement the root element of the search
 * 
 * @return the matching elements
 */
public static List<Element> getElementsByClass(String className, Tag tag, Element rootElement) {

    if ((rootElement == null) || (className == null) || (className.trim().length() == 0) || (tag == null)) {
        return null;
    }
    className = className.trim();
    List<Element> result = new ArrayList<Element>();
    if (internalHasClass(className, rootElement)) {
        result.add(rootElement);
    }
    NodeList<Element> elements = rootElement.getElementsByTagName(tag.toString());
    for (int i = 0; i < elements.getLength(); i++) {
        if (internalHasClass(className, elements.getItem(i))) {
            result.add(elements.getItem(i));
        }
    }
    return result;
}

From source file:com.alkacon.geranium.client.util.DomUtil.java

License:Open Source License

/**
 * Returns the element position relative to its siblings.<p>
 * //w w w.  j a  v a  2s.com
 * @param e the element to get the position for
 * 
 * @return the position, or <code>-1</code> if not found
 */
public static int getPosition(Element e) {

    NodeList<Node> childNodes = e.getParentElement().getChildNodes();
    for (int i = childNodes.getLength(); i >= 0; i--) {
        if (childNodes.getItem(i) == e) {
            return i;
        }
    }
    return -1;
}

From source file:com.alkacon.geranium.client.util.DomUtil.java

License:Open Source License

/**
 * Removes all script tags from the given element.<p>
 * /* w  w  w.  jav  a2  s. c  o  m*/
 * @param element the element to remove the script tags from
 * 
 * @return the resulting element
 */
public static Element removeScriptTags(Element element) {

    NodeList<Element> scriptTags = element.getElementsByTagName(Tag.script.name());
    // iterate backwards over list to ensure all tags get removed
    for (int i = scriptTags.getLength() - 1; i >= 0; i--) {
        scriptTags.getItem(i).removeFromParent();
    }
    return element;
}

From source file:com.alkacon.geranium.client.util.PositionBean.java

License:Open Source License

/**
 * Returns a position info representing the dimensions of all visible child elements of the given panel (excluding elements with position:absolute).
 * If the panel has no visible child elements, it's outer dimensions are returned.<p>
 * /* w w  w  .j ava  2 s. c  o m*/
 * @param panel the panel
 * @param levels the levels to traverse down the DOM tree
 * @param includeSelf <code>true</code> to include the outer dimensions of the given panel
 * 
 * @return the position info
 */
public static PositionBean getInnerDimensions(Element panel, int levels, boolean includeSelf) {

    boolean first = true;
    int top = 0;
    int left = 0;
    int bottom = 0;
    int right = 0;
    // if overflow is set to hidden, use the outer dimensions
    if (!Overflow.HIDDEN.getCssName().equals(DomUtil.getCurrentStyle(panel, Style.overflow))) {
        if (!includeSelf) {
            // check for any text content
            NodeList<Node> children = panel.getChildNodes();
            for (int i = 0; i < children.getLength(); i++) {
                if ((children.getItem(i).getNodeType() == Node.TEXT_NODE)
                        && (children.getItem(i).getNodeValue().trim().length() > 0)) {
                    includeSelf = true;
                    break;
                }
            }
        }
        if (includeSelf) {
            top = panel.getAbsoluteTop();
            left = panel.getAbsoluteLeft();
            bottom = top + panel.getOffsetHeight();
            right = left + panel.getOffsetWidth();
            first = false;
        }
        Element child = panel.getFirstChildElement();
        while (child != null) {
            String tagName = child.getTagName();
            if (tagName.equalsIgnoreCase("br") || tagName.equalsIgnoreCase("tr")
                    || tagName.equalsIgnoreCase("thead") || tagName.equalsIgnoreCase("tfoot")
                    || tagName.equalsIgnoreCase("script") || tagName.equalsIgnoreCase("style")) {
                // ignore tags with no relevant position info
                child = child.getNextSiblingElement();
                continue;
            }
            String positioning = DomUtil.getCurrentStyle(child, Style.position);
            if (!Display.NONE.getCssName().equals(DomUtil.getCurrentStyle(child, Style.display))
                    && !(positioning.equalsIgnoreCase(Position.ABSOLUTE.getCssName())
                            || positioning.equalsIgnoreCase(Position.FIXED.getCssName()))) {
                PositionBean childDimensions = levels > 0 ? getInnerDimensions(child, levels - 1, true)
                        : generatePositionInfo(panel);
                if (first) {
                    first = false;
                    top = childDimensions.getTop();
                    left = childDimensions.getLeft();
                    bottom = top + childDimensions.getHeight();
                    right = left + childDimensions.getWidth();
                } else {
                    int wTop = childDimensions.getTop();
                    top = top < wTop ? top : wTop;
                    int wLeft = childDimensions.getLeft();
                    left = left < wLeft ? left : wLeft;
                    int wBottom = wTop + childDimensions.getHeight();
                    bottom = bottom > wBottom ? bottom : wBottom;
                    int wRight = wLeft + childDimensions.getWidth();
                    right = right > wRight ? right : wRight;
                }
            }
            child = child.getNextSiblingElement();
        }
    }
    if (!first) {
        PositionBean result = new PositionBean();
        result.setHeight(bottom - top);
        result.setWidth(right - left);
        result.setTop(top);
        result.setLeft(left);
        return result;
    } else {
        return generatePositionInfo(panel);
    }
}

From source file:com.arcbees.chosen.client.ChosenImpl.java

License:Apache License

private boolean isAllowSingleDeselect() {
    NodeList<OptionElement> optionsList = selectElement.getOptions();
    return options.isAllowSingleDeselect() && optionsList.getLength() > 0
            && "".equals(optionsList.getItem(0).getText());
}

From source file:com.arcbees.chosen.client.gwt.ChosenListBox.java

License:Apache License

/**
 * Return the values of all selected options in an array.
 * Usefull to know which options are selected in case of multiple ChosenListBox
 *
 * @return the values of all selected options in an array
 */// ww w  .  j  av  a 2s .  c  o  m
public String[] getValues() {
    ChosenImpl impl = getChosenImpl();

    if (impl != null) {
        List<String> selectedValues = impl.getSelectedValues();
        return selectedValues.toArray(new String[selectedValues.size()]);
    } else {
        JsArrayString values = JsArrayString.createArray().cast();
        NodeList<OptionElement> options = SelectElement.as(getElement()).getOptions();
        for (int i = 0; i < options.getLength(); i++) {
            OptionElement option = options.getItem(i);
            if (option.isSelected()) {
                values.push(option.getValue());
            }
        }

        String[] result = new String[values.length()];
        for (int i = 0; i < values.length(); i++) {
            result[i] = values.get(i);
        }

        return result;
    }
}