/**
* Create IDOMPosition based on Indexed 'position' in model. If node at position is text, use
* position to calculate DOMPosition offset, otherwize, simply create position pointed to
* container's children list's edge.
*
* @param model
* @param position
* @param adjust
* @return the dom position
*/
public IDOMPosition createDomposition1(IDOMModel model, int position, boolean adjust) {
try {
// get the container
Object object = getPosNode(model, position);
if (object == null && position > 0) {
// The end of file?
object = getPosNode(model, position - 1);
}
Node container = null;
if (object == null) {
// empty file?
return new DOMPosition(model.getDocument(), 0);
}
container = (Node) object;
Object oppNode = getPosNode(model, position - 1);
if (oppNode != null
&& !EditModelQuery.isChild((Node) oppNode, container)
&& //
!EditModelQuery.isInline(container)
&& EditModelQuery.isInline((Node) oppNode)) {
container = (Node) oppNode;
}
int location = EditHelper.getInstance().getLocation(container, position, false);
IDOMPosition result = null;
switch (location) {
case 1:
case 2:
result = new DOMRefPosition(container, false);
break;
case 4:
case 5:
result = new DOMRefPosition(container, true);
break;
case 3:
if (EditModelQuery.isText(container)) {
result =
new DOMPosition(container, position - EditModelQuery.getNodeStartIndex(container));
} else {
result = new DOMPosition(container, container.getChildNodes().getLength());
}
}
return result;
} catch (Exception e) {
// "Error in position creation"
_log.error("Error.EditModelQuery.0" + e); // $NON-NLS-1$
return null;
}
}
/**
* @param node
* @return if has tranparent node only
*/
public static boolean hasTransparentNodeOnly(Node node) {
NodeList children = node.getChildNodes();
for (int i = 0, n = children.getLength(); i < n; i++) {
if (!EditModelQuery.isTransparentText(children.item(i))) {
return false;
}
}
return true;
}
/**
* Determine whether the position is at node's edge. When the offset is at edge, it is in the
* leftmost or rightmost offset of node's region.
*
* @param position
* @param forward
* @return true if at edge
*/
boolean atEdge(IDOMPosition position, boolean forward) {
Node node = position.getContainerNode();
int offset = position.getOffset();
if (forward) {
if (EditModelQuery.isText(node)) {
return offset == node.getNodeValue().length();
}
return offset == node.getChildNodes().getLength();
}
return offset == 0;
}
/**
* @param node
* @param names
* @param ignoreCase
* @return true if node has ancestors in the name list TODO: bad practice
*/
public static boolean hasAncestor(Node node, String names[], boolean ignoreCase) {
Assert.isTrue(names != null);
while (node != null && !EditModelQuery.isDocument(node)) {
if (isElement(node))
if (containItem(names, node, ignoreCase)) {
return true;
}
node = node.getParentNode();
}
return false;
}
/**
* To see if 'node' has ancestor that has name as 'name'
*
* @param node
* @param name
* @param ignoreCase
* @return true if node has the named ancestor
*/
public static boolean hasAncestor(Node node, String name, boolean ignoreCase) {
Assert.isTrue(name != null);
while (node != null && !EditModelQuery.isDocument(node)) {
if (node.getNodeName() != null)
if ((ignoreCase && name.equalsIgnoreCase(node.getNodeName()))
|| //
(!ignoreCase && name.equals(node.getNodeName()))) {
return true;
}
node = node.getParentNode();
}
return false;
}
/**
* @param fModel
* @param textSelection
* @return the design range
*/
static DesignRange convertToDesignRange(IStructuredModel fModel, TextSelection textSelection) {
int start = textSelection.getOffset();
int end = textSelection.getLength() + start;
IDOMPosition startDomPos =
EditModelQuery.getInstance().createDomposition((IDOMModel) fModel, start, false);
IDOMPosition endDomPos =
EditModelQuery.getInstance().createDomposition((IDOMModel) fModel, end, false);
if (startDomPos == null) {
startDomPos = endDomPos;
} else if (endDomPos == null) {
endDomPos = startDomPos;
}
if (startDomPos != null) {
DesignPosition startPos = null, endPos = null;
startPos = DOMPositionHelper.toDesignPosition(startDomPos);
endPos = DOMPositionHelper.toDesignPosition(endDomPos);
if (startPos != null) {
return new DesignRange(startPos, endPos);
}
}
return null;
}
/**
* To see if 'node' has direct ancestors that has names listed in 'name[]'
*
* @param node
* @param top
* @param ignoreCase
* @return the list of ancestors
*/
public static List getAncestors(Node node, String top, boolean ignoreCase) {
List result = new ArrayList();
Assert.isTrue(node != null);
while (node != null && !EditModelQuery.isDocument(node)) {
result.add(node);
String name = node.getLocalName();
if (ignoreCase && top.equalsIgnoreCase(name)
|| //
(!ignoreCase && top.equals(name))) {
break;
}
node = node.getParentNode();
}
return result;
}
