Example usage for org.w3c.dom.ranges Range getStartContainer

Introduction

In this page you can find the example usage for org.w3c.dom.ranges Range getStartContainer.

Prototype

public Node getStartContainer() throws DOMException;

Source Link

Document

Node within which the Range begins

Usage

From source file:com.gargoylesoftware.htmlunit.javascript.host.dom.TextRange.java

/**
 * Indicates if a range is contained in current one.
 * @param other the other range//from  ww  w.ja v a  2  s.c  o  m
 * @return {@code true} if <code>other</code> is contained within current range
 * @see <a href="http://msdn.microsoft.com/en-us/library/ms536371.aspx">MSDN doc</a>
 */
@JsxFunction
public boolean inRange(final TextRange other) {
    final Range otherRange = other.range_;

    final org.w3c.dom.Node start = range_.getStartContainer();
    final org.w3c.dom.Node otherStart = otherRange.getStartContainer();
    if (otherStart == null) {
        return false;
    }
    final short startComparison = start.compareDocumentPosition(otherStart);
    final boolean startNodeBefore = startComparison == 0
            || (startComparison & Node.DOCUMENT_POSITION_CONTAINS) != 0
            || (startComparison & Node.DOCUMENT_POSITION_PRECEDING) != 0;
    if (startNodeBefore && (start != otherStart || range_.getStartOffset() <= otherRange.getStartOffset())) {
        final org.w3c.dom.Node end = range_.getEndContainer();
        final org.w3c.dom.Node otherEnd = otherRange.getEndContainer();
        final short endComparison = end.compareDocumentPosition(otherEnd);
        final boolean endNodeAfter = endComparison == 0
                || (endComparison & Node.DOCUMENT_POSITION_CONTAINS) != 0
                || (endComparison & Node.DOCUMENT_POSITION_FOLLOWING) != 0;
        if (endNodeAfter && (end != otherEnd || range_.getEndOffset() >= otherRange.getEndOffset())) {
            return true;
        }
    }

    return false;
}

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From source file:com.gargoylesoftware.htmlunit.javascript.host.dom.TextRange.java

/**
 * Sets the endpoint of the range based on the endpoint of another range..
 * @param type end point transfer type. One of "StartToEnd", "StartToStart", "EndToStart" and "EndToEnd"
 * @param other the other range/*w  ww.jav a 2s.co  m*/
 * @see <a href="http://msdn.microsoft.com/en-us/library/ms536745.aspx">MSDN doc</a>
 */
@JsxFunction
public void setEndPoint(final String type, final TextRange other) {
    final Range otherRange = other.range_;

    final org.w3c.dom.Node target;
    final int offset;
    if (type.endsWith("ToStart")) {
        target = otherRange.getStartContainer();
        offset = otherRange.getStartOffset();
    } else {
        target = otherRange.getEndContainer();
        offset = otherRange.getEndOffset();
    }

    if (type.startsWith("Start")) {
        range_.setStart(target, offset);
    } else {
        range_.setEnd(target, offset);
    }
}

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