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

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

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Introduction

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

Prototype

public T getItem(int index)

Source Link

Usage

From source file:org.xwiki.gwt.wysiwyg.client.plugin.line.LinePlugin.java

License:Open Source License

/**
 * Marks the BRs that have been added as spacers during the editing. These BRs were added to overcome a Mozilla bug
 * that prevents us from typing inside an empty block level element.
 *///  ww  w. j  a v  a  2s .  c  om
protected void markSpacers() {
    Document document = getTextArea().getDocument();
    NodeList<com.google.gwt.dom.client.Element> brs = document.getBody().getElementsByTagName(BR);
    for (int i = 0; i < brs.getLength(); i++) {
        Element br = brs.getItem(i).cast();
        // Ignore the BRs that have been there from the beginning.
        if (LINE_BREAK.equals(br.getClassName())) {
            continue;
        }
        Node container = domUtils.getNearestBlockContainer(br);
        Node leaf = domUtils.getNextLeaf(br);
        boolean emptyLine = true;
        // Look if there is any visible element on the new line, taking care to remain in the current block
        // container.
        while (leaf != null && container == domUtils.getNearestBlockContainer(leaf)) {
            if (needsSpace(leaf)) {
                emptyLine = false;
                break;
            }
            leaf = domUtils.getNextLeaf(leaf);
        }
        if (emptyLine) {
            br.setClassName(SPACER);
        } else {
            br.removeAttribute(CLASS_NAME);
        }
    }
}

From source file:org.xwiki.gwt.wysiwyg.client.plugin.line.LinePlugin.java

License:Open Source License

/**
 * @see #markSpacers()/*from  w  ww  .  j a v a  2s  .  co m*/
 */
protected void unMarkSpacers() {
    Document document = getTextArea().getDocument();
    NodeList<com.google.gwt.dom.client.Element> brs = document.getBody().getElementsByTagName(BR);
    for (int i = 0; i < brs.getLength(); i++) {
        Element br = (Element) brs.getItem(i);
        if (SPACER.equals(br.getClassName())) {
            br.removeAttribute(CLASS_NAME);
        }
    }
}

From source file:org.xwiki.gwt.wysiwyg.client.plugin.line.LinePlugin.java

License:Open Source License

/**
 * Marks the initial line breaks so they are not mistaken as {@link #SPACER}.
 *//*from w w  w  .j ava2s  . c  om*/
protected void markInitialLineBreaks() {
    Document document = getTextArea().getDocument();
    NodeList<com.google.gwt.dom.client.Element> brs = document.getBody().getElementsByTagName(BR);
    for (int i = 0; i < brs.getLength(); i++) {
        Element br = (Element) brs.getItem(i);
        // Skip the spaces and the BRs added by the browser before the document was loaded.
        if (!br.hasAttribute("_moz_dirty") && !SPACER.equals(br.getClassName())) {
            br.setClassName(LINE_BREAK);
        }
    }
}

From source file:org.xwiki.gwt.wysiwyg.client.plugin.line.LinePlugin.java

License:Open Source License

/**
 * Replaces {@code <div class="wikimodel-emptyline"/>} with {@code <p/>}. Empty lines are used by WikiModel to
 * separate block level elements, but since the user should be able to write on these empty lines we convert them to
 * paragraphs./*ww  w .ja  va2 s .  c  o  m*/
 */
protected void replaceEmptyLinesWithParagraphs() {
    Document document = getTextArea().getDocument();
    NodeList<com.google.gwt.dom.client.Element> divs = document.getBody().getElementsByTagName("div");
    // Since NodeList is updated when one of its nodes are detached, we store the empty lines in a separate list.
    List<Node> emptyLines = new ArrayList<Node>();
    for (int i = 0; i < divs.getLength(); i++) {
        Element div = divs.getItem(i).cast();
        if (div.hasClassName("wikimodel-emptyline")) {
            emptyLines.add(div);
        }
    }
    // Replace the empty lines with paragraphs.
    for (Node emptyLine : emptyLines) {
        emptyLine.getParentNode().replaceChild(document.createPElement(), emptyLine);
    }
}

From source file:org.xwiki.gwt.wysiwyg.client.plugin.link.EmptyLinkFilter.java

License:Open Source License

/**
 * @return the list of empty anchors/*from   www . j a  v a  2 s.co m*/
 * @see #isEmpty(Element)
 */
private List<Element> getEmptyAnchors() {
    List<Element> emptyAnchors = new ArrayList<Element>();
    NodeList<Element> anchorsList = rta.getDocument().getElementsByTagName("a");
    for (int i = 0; i < anchorsList.getLength(); i++) {
        Element anchor = anchorsList.getItem(i);
        if (isEmpty(AnchorElement.as(anchor))) {
            emptyAnchors.add(anchor);
        }
    }
    return emptyAnchors;
}

From source file:org.xwiki.gwt.wysiwyg.client.plugin.link.LinkMetaDataExtractor.java

License:Open Source License

/**
 * {@inheritDoc}/*from   www .  ja  va  2s. co m*/
 * 
 * @see InnerHTMLListener#onInnerHTMLChange(Element)
 */
public void onInnerHTMLChange(Element parent) {
    // look up all images in this subtree
    NodeList<com.google.gwt.dom.client.Element> anchors = parent.getElementsByTagName("a");
    for (int i = 0; i < anchors.getLength(); i++) {
        Element anchor = (Element) anchors.getItem(i);
        processElement(anchor);
    }
}

From source file:org.xwiki.gwt.wysiwyg.client.plugin.list.internal.MozillaListBehaviorAdjuster.java

License:Open Source License

/**
 * {@inheritDoc} In addition to default cleanup, also add a br in each empty list item (&lt;li /&gt;), so that it
 * stays editable.//from  w  w  w.j  a v  a  2s .co  m
 * 
 * @see ListBehaviorAdjuster#cleanUp(Element)
 */
protected void cleanUp(Element element) {
    // default cleanup behavior
    super.cleanUp(element);
    // now for each list item, if it's empty, add a line break inside
    NodeList<com.google.gwt.dom.client.Element> listItems = element.getElementsByTagName(LIST_ITEM_TAG);
    for (int i = 0; i < listItems.getLength(); i++) {
        Element currentListItem = (Element) listItems.getItem(i);
        if (currentListItem.getChildNodes().getLength() == 0) {
            currentListItem.appendChild(element.getOwnerDocument().createBRElement());
        }
    }
}

From source file:org.xwiki.gwt.wysiwyg.client.plugin.list.ListBehaviorAdjuster.java

License:Open Source License

/**
 * Executes lists clean up on the subtree rooted in the element passed as parameter. Lists cleanup consists of:
 * <ul>/*from   w  ww.j  a  v  a  2s.co  m*/
 * <li>finding all the {@code ul} or {@code ol} tags which are in another {@code ul} or {@code ol} and adding a
 * {@code li} wrapper around each</li>
 * <li>finding all the {@code ul} or {@code ol} tags which are at the beginning (first child) of a list item and
 * making the parent list items editable</li>
 * </ul>
 * (but these operations are executed in a single pass). <br />
 * Note that while these operations are not enough from a strict xhtml cleaning point of view, they address all the
 * practical cases that appear so we chose to limit the operations executed to only these for performance reasons.
 * 
 * @param element the root element of the subtree in which to execute cleanup.
 */
protected void cleanUp(Element element) {
    // find all lists
    NodeList<com.google.gwt.dom.client.Element> orderedLists = element.getElementsByTagName(ORDERED_LIST_TAG);
    NodeList<com.google.gwt.dom.client.Element> unorderedLists = element
            .getElementsByTagName(UNORDERED_LIST_TAG);
    // send them to the actual cleaner
    cleanUpLists(orderedLists);
    cleanUpLists(unorderedLists);

    // Ensure that each list item can be edited.
    NodeList<com.google.gwt.dom.client.Element> listItems = element.getElementsByTagName(LIST_ITEM_TAG);
    for (int i = 0; i < listItems.getLength(); i++) {
        Element.as(listItems.getItem(i)).ensureEditable();
    }
}

From source file:org.xwiki.gwt.wysiwyg.client.plugin.list.ListBehaviorAdjuster.java

License:Open Source License

/**
 * Helper function to handle a list of list elements and clean them.
 * /*from   w  w  w .jav a  2s.c  om*/
 * @param listElements the list elements to clean up, according to the description at {@link #cleanUp(Element)}
 */
protected void cleanUpLists(NodeList<com.google.gwt.dom.client.Element> listElements) {
    for (int i = 0; i < listElements.getLength(); i++) {
        Element listElement = (Element) listElements.getItem(i);
        // check the parent of this list Element
        if (listElement.getParentNode().getNodeName().equalsIgnoreCase(ORDERED_LIST_TAG)
                || listElement.getParentNode().getNodeName().equalsIgnoreCase(UNORDERED_LIST_TAG)) {
            wrapList(listElement);
        }
        // check if this element is the first element of a list item
        if (listElement.getParentNode().getNodeName().equalsIgnoreCase(LIST_ITEM_TAG)
                && listElement.getPreviousSibling() == null) {
            // is first element
            handleEmptyListItem((Element) listElement.getParentNode());
        }
    }
}

From source file:org.xwiki.gwt.wysiwyg.client.plugin.style.StylePlugin.java

License:Open Source License

/**
 * Initialize the style name picker.//www. j a va2s .  com
 */
private void initStyleNamePicker() {
    styleNamePicker = new ListBox();
    styleNamePicker.setTitle(Strings.INSTANCE.stylePickerTitle());
    styleNamePicker.addStyleName("xStyleNamePicker");
    styleNamePicker.addItem(Strings.INSTANCE.stylePickerLabel(), "");
    saveRegistration(styleNamePicker.addChangeHandler(this));

    StyleDescriptorJSONParser parser = new StyleDescriptorJSONParser();
    for (StyleDescriptor descriptor : parser.parse(getConfig().getParameter("styleNames", "[]"))) {
        styleNamePicker.addItem(descriptor.getLabel(), descriptor.getName());
        NodeList<OptionElement> options = SelectElement.as(styleNamePicker.getElement()).getOptions();
        OptionElement option = options.getItem(options.getLength() - 1);
        option.setPropertyBoolean(INLINE, descriptor.isInline());
        (descriptor.isInline() ? inlineStyles : blockStyles).add(option);
    }

    if (blockStyles.size() > 0 && inlineStyles.size() > 0) {
        groupStyleNames(Strings.INSTANCE.styleBlockGroupLabel(), blockStyles);
        groupStyleNames(Strings.INSTANCE.styleInlineGroupLabel(), inlineStyles);
    }
    styleNamePicker.setSelectedIndex(0);

    toolBarExtension.addFeature("stylename", styleNamePicker);
}