Java Code Examples for com.gargoylesoftware.htmlunit.html.DomElement#ATTRIBUTE_NOT_DEFINED

/**
 * Search for the namespace URI of the given prefix, starting from the specified element.
 * The default namespace can be searched for by specifying "" as the prefix.
 * @param element the element to start searching from
 * @param prefix the namespace prefix
 * @return the namespace URI bound to the prefix; or null if there is no such namespace
 */
public static String lookupNamespaceURI(final DomElement element, final String prefix) {
    String uri = DomElement.ATTRIBUTE_NOT_DEFINED;
    if (prefix.isEmpty()) {
        uri = element.getAttributeDirect("xmlns");
    }
    else {
        uri = element.getAttribute("xmlns:" + prefix);
    }
    if (uri == DomElement.ATTRIBUTE_NOT_DEFINED) {
        final DomNode parentNode = element.getParentNode();
        if (parentNode instanceof DomElement) {
            uri = lookupNamespaceURI((DomElement) parentNode, prefix);
        }
    }
    return uri;
}
 

/**
 * Returns the value of this link's {@code href} property.
 * @return the value of this link's {@code href} property
 */
@JsxGetter
public String getHref() {
    final HtmlAnchor anchor = (HtmlAnchor) getDomNodeOrDie();
    final String hrefAttr = anchor.getHrefAttribute();

    if (hrefAttr == DomElement.ATTRIBUTE_NOT_DEFINED) {
        return "";
    }

    try {
        return getUrl().toString();
    }
    catch (final MalformedURLException e) {
        return hrefAttr;
    }
}
 

/**
 * Returns the value of the property {@code action}.
 * @return the value of this property
 */
@JsxGetter
public String getAction() {
    final String action = getHtmlForm().getActionAttribute();

    if (action == DomElement.ATTRIBUTE_NOT_DEFINED
            && !getBrowserVersion().hasFeature(JS_FORM_ACTION_EXPANDURL_NOT_DEFINED)) {
        return action;
    }

    try {
        return ((HtmlPage) getHtmlForm().getPage()).getFullyQualifiedUrl(action).toExternalForm();
    }
    catch (final MalformedURLException e) {
        // nothing, return action attribute
    }
    return action;
}
 

/**
 * Adds the ids of the collection's elements to the idList.
 * @param idList the list to add the ids to
 * @param elements the collection's elements
 */
protected void addElementIds(final List<String> idList, final List<DomNode> elements) {
    int index = 0;
    for (final DomNode next : elements) {
        final HtmlElement element = (HtmlElement) next;
        final String name = element.getAttributeDirect("name");
        if (name != DomElement.ATTRIBUTE_NOT_DEFINED) {
            idList.add(name);
        }
        else {
            final String id = element.getId();
            if (id != DomElement.ATTRIBUTE_NOT_DEFINED) {
                idList.add(id);
            }
            else {
                idList.add(Integer.toString(index));
            }
        }
        index++;
    }
}
 

static String getDefaultValue(final HtmlElement element) {
    String href = element.getAttributeDirect("href");

    if (DomElement.ATTRIBUTE_NOT_DEFINED == href) {
        return ""; // for example for named anchors
    }

    href = href.trim();

    final SgmlPage page = element.getPage();
    if (page == null || !page.isHtmlPage()) {
        return href;
    }

    try {
        return HtmlAnchor.getTargetUrl(href, (HtmlPage) page).toExternalForm();
    }
    catch (final MalformedURLException e) {
        return href;
    }
}
 

/**
 * This is overridden instead of {@link #computeElements()} in order to prevent caching at all.
 *
 * {@inheritDoc}
 */
@Override
public List<DomNode> getElements() {
    final List<DomNode> response = new ArrayList<>();
    final DomElement domElement = (DomElement) getDomNodeOrDie();
    for (DomNode parent = domElement.getParentNode(); parent != null; parent = parent.getParentNode()) {
        if (parent instanceof HtmlLabel) {
            response.add(parent);
        }
    }
    final String id = domElement.getId();
    if (id != DomElement.ATTRIBUTE_NOT_DEFINED) {
        for (final DomElement label : domElement.getHtmlPageOrNull().getElementsByTagName("label")) {
            if (id.equals(label.getAttributeDirect("for"))) {
                response.add(label);
            }
        }
    }

    return response;
}
 

@Override
@JsxGetter({CHROME, FF, FF68, FF60})
public String getVlinkColor() {
    String color = getPage().getBody().getAttribute("vLink");
    if (color == DomElement.ATTRIBUTE_NOT_DEFINED && getBrowserVersion().hasFeature(HTMLDOCUMENT_COLOR)) {
        color = "#800080";
    }
    if (getBrowserVersion().hasFeature(HTML_COLOR_EXPAND_ZERO) && "#0".equals(color)) {
        color = "#000000";
    }
    return color;
}
 

/**
 * Sets the focus to this element.
 */
@Override
public void focus() {
    final HtmlAnchor anchor = (HtmlAnchor) getDomNodeOrDie();
    final String hrefAttr = anchor.getHrefAttribute();

    if (hrefAttr != DomElement.ATTRIBUTE_NOT_DEFINED) {
        anchor.focus();
    }
}
 

/**
 * Returns the {@code contentEditable} property.
 * @return the {@code contentEditable} property
 */
@JsxGetter
public String getContentEditable() {
    final String attribute = getDomNodeOrDie().getAttribute("contentEditable");
    if (attribute == DomElement.ATTRIBUTE_NOT_DEFINED) {
        return "inherit";
    }
    if (attribute == DomElement.ATTRIBUTE_VALUE_EMPTY) {
        return "true";
    }
    return attribute;
}
 

/**
 * Returns the value of the {@code label} property.
 * @return the value of the {@code label} property
 */
@JsxGetter
public String getLabel() {
    final String label = getDomNodeOrDie().getAttributeDirect("label");
    if (DomElement.ATTRIBUTE_NOT_DEFINED == label) {
        return "";
    }
    return label;
}
 

/**
 * Returns all the descendant elements with the specified class.
 * @param className the name to search for
 * @return all the descendant elements with the specified class name
 */
@JsxFunction({CHROME, FF})
public HTMLCollection getElementsByClassName(final String className) {
    final DomElement elt = getDomNodeOrDie();
    final String[] classNames = CLASS_NAMES_SPLIT_PATTERN.split(className, 0);

    final HTMLCollection collection = new HTMLCollection(elt, true) {
        @Override
        protected boolean isMatching(final DomNode node) {
            if (!(node instanceof HtmlElement)) {
                return false;
            }
            String classAttribute = ((HtmlElement) node).getAttributeDirect("class");
            if (classAttribute == DomElement.ATTRIBUTE_NOT_DEFINED) {
                return false; // probably better performance as most of elements won't have a class attribute
            }

            classAttribute = " " + classAttribute + " ";
            for (final String aClassName : classNames) {
                if (!classAttribute.contains(" " + aClassName + " ")) {
                    return false;
                }
            }
            return true;
        }
    };

    return collection;
}
 

/**
 * Sets the focus to this element.
 */
@Override
public void focus() {
    // in reality this depends also on the visibility of the area itself
    final HtmlArea area = (HtmlArea) getDomNodeOrDie();
    final String hrefAttr = area.getHrefAttribute();

    if (hrefAttr != DomElement.ATTRIBUTE_NOT_DEFINED
            || getBrowserVersion().hasFeature(JS_AREA_WITHOUT_HREF_FOCUSABLE)) {
        area.focus();
    }
}
 

@Override
@JsxGetter({CHROME, FF, FF68, FF60})
public String getFgColor() {
    String color = getPage().getBody().getAttributeDirect("text");
    if (color == DomElement.ATTRIBUTE_NOT_DEFINED && getBrowserVersion().hasFeature(HTMLDOCUMENT_COLOR)) {
        color = "#000000";
    }
    if (getBrowserVersion().hasFeature(HTML_COLOR_EXPAND_ZERO) && "#0".equals(color)) {
        color = "#000000";
    }
    return color;
}
 

/**
 * If we have added a new iframe that
 * had no source attribute, we have to take care the
 * 'onload' handler is triggered.
 *
 * @param childDomNode
 */
private static void initInlineFrameIfNeeded(final DomNode childDomNode) {
    if (childDomNode instanceof HtmlInlineFrame) {
        final HtmlInlineFrame frame = (HtmlInlineFrame) childDomNode;
        if (DomElement.ATTRIBUTE_NOT_DEFINED == frame.getSrcAttribute()) {
            frame.loadInnerPage();
        }
    }
}
 

/**
 * Returns the value of the {@code label} property.
 * @return the value of the {@code label} property
 */
@JsxGetter
public String getLabel() {
    final String label = getDomNodeOrDie().getAttributeDirect("label");
    if (DomElement.ATTRIBUTE_NOT_DEFINED == label) {
        return "";
    }
    return label;
}
 

@Override
@JsxGetter({CHROME, FF, FF68, FF60})
public String getAlinkColor() {
    String color = getPage().getBody().getAttribute("aLink");
    if (color == DomElement.ATTRIBUTE_NOT_DEFINED && getBrowserVersion().hasFeature(HTMLDOCUMENT_COLOR)) {
        color = "#0000ff";
    }
    if (getBrowserVersion().hasFeature(HTML_COLOR_EXPAND_ZERO) && "#0".equals(color)) {
        color = "#000000";
    }
    return color;
}
 

@Override
@JsxGetter({CHROME, FF})
public String getLinkColor() {
    String color = getPage().getBody().getAttributeDirect("link");
    if (color == DomElement.ATTRIBUTE_NOT_DEFINED && getBrowserVersion().hasFeature(HTMLDOCUMENT_COLOR)) {
        color = "#0000ff";
    }
    if (getBrowserVersion().hasFeature(HTML_COLOR_EXPAND_ZERO) && "#0".equals(color)) {
        color = "#000000";
    }
    return color;
}
 

/**
 * Sets the focus to this element.
 */
@Override
public void focus() {
    final HtmlAnchor anchor = (HtmlAnchor) getDomNodeOrDie();
    final String hrefAttr = anchor.getHrefAttribute();

    if (hrefAttr != DomElement.ATTRIBUTE_NOT_DEFINED) {
        anchor.focus();
    }
}
 

/**
 * {@inheritDoc}
 */
@Override
public Object get(final String name, final Scriptable start) {
    final HtmlElement e = (HtmlElement) getDomNodeOrNull();
    if (e != null) {
        final String value = e.getAttribute("data-" + decamelize(name));
        if (value != DomElement.ATTRIBUTE_NOT_DEFINED) {
            return value;
        }
    }
    return NOT_FOUND;
}
 

/**
 * If we have added a new iframe that
 * had no source attribute, we have to take care the
 * 'onload' handler is triggered.
 *
 * @param childDomNode
 */
private static void initInlineFrameIfNeeded(final DomNode childDomNode) {
    if (childDomNode instanceof HtmlInlineFrame) {
        final HtmlInlineFrame frame = (HtmlInlineFrame) childDomNode;
        if (DomElement.ATTRIBUTE_NOT_DEFINED == frame.getSrcAttribute()) {
            frame.loadInnerPage();
        }
    }
}