/**
* Returns the positions of a specific category of the given document.
*
* @param document the document to get the positions from
* @param category the position's category
* @return an array of positions. If there is none return an array with the length = 0
*/
public org.eclipse.jface.text.Position[] getPositions(
org.eclipse.jface.text.IDocument document, String category) {
try {
return document.getPositions(category);
} catch (org.eclipse.jface.text.BadPositionCategoryException e) {
}
return new org.eclipse.jface.text.Position[0];
}
/**
* Returns the first position of a specific category of the given document.
*
* @param document the document to get the positions from
* @param category the category of the position
* @return a position. If there is none return <code>null</code>.
*/
public org.eclipse.jface.text.Position getFirstPosition(
org.eclipse.jface.text.IDocument document, String category) {
try {
org.eclipse.jface.text.Position[] positions = document.getPositions(category);
if (positions.length > 0) {
return positions[0];
}
} catch (org.eclipse.jface.text.BadPositionCategoryException e) {
}
return null;
}
public static XMLNode getArtifactAt(String positionCategory, IDocument doc, int offset) {
try {
Position[] pos = doc.getPositions(positionCategory);
for (int i = 0; i < pos.length; i++) {
if (offset >= pos[i].getOffset() && offset <= pos[i].getOffset() + pos[i].getLength())
return (XMLNode) pos[i];
}
} catch (BadPositionCategoryException e) {
// do nothing
}
return null;
}
public XMLNode getPreviousSiblingTag(String allowed) {
if (parent == null || parent.getType().equals("/") || allowed == null) return null;
Position[] pos = null;
try {
pos = document.getPositions(XMLDocumentPartitioner.CONTENT_TYPES_CATEGORY);
} catch (BadPositionCategoryException e) {
e.printStackTrace();
return null;
}
Arrays.sort(pos, COMPARATOR);
int index = 0;
while (pos[index] != this) index++;
if (index > 0) {
XMLNode result = null;
for (int i = index - 1; i >= 0; i--) {
result = (XMLNode) pos[i];
if (result == parent) return null;
String type = result.getType();
if (result.getParent() != parent
|| (type.equals(ITypeConstants.TEXT)
|| type.equals(ITypeConstants.COMMENT)
|| type.equals(ITypeConstants.DECL))) {
continue;
}
String name = result.getName();
if (name == null) continue;
if (type.equals(ITypeConstants.ENDTAG)) {
XMLNode corresponding = result.getCorrespondingNode();
if (allowed.indexOf(corresponding.getName().toLowerCase()) >= 0) return corresponding;
} else if (allowed.indexOf(name) >= 0) {
return result;
}
}
}
return null;
}