public boolean prepareTextRegion(
ITextRegionCollection blockedRegion,
int partitionStartOffset,
int partitionLength,
Collection<StyleRange> holdResults) {
boolean handled = false;
final int partitionEndOffset = partitionStartOffset + partitionLength - 1;
ITextRegion region = null;
ITextRegionList regions = blockedRegion.getRegions();
int nRegions = regions.size();
StyleRange styleRange = null;
for (int i = 0; i < nRegions; i++) {
region = regions.get(i);
TextAttribute attr = null;
// TextAttribute previousAttr = null;
final int startOffset = blockedRegion.getStartOffset(region);
if (startOffset > partitionEndOffset) break;
if (blockedRegion.getEndOffset(region) <= partitionStartOffset) continue;
if (region instanceof ITextRegionCollection) {
handled =
prepareTextRegion(
(ITextRegionCollection) region, partitionStartOffset, partitionLength, holdResults);
} else {
if (region.getType() == TwigRegionContext.TWIG_CONTENT
|| region.getType() == TwigRegionContext.TWIG_COMMENT) {
handled =
prepareTwigRegions(
holdResults,
(ITwigScriptRegion) region,
startOffset,
partitionStartOffset,
partitionLength);
} else {
attr = getAttributeFor(region);
if (attr != null) {
handled = true;
styleRange =
createStyleRange(
blockedRegion, region, attr, partitionStartOffset, partitionLength);
holdResults.add(styleRange);
// technically speaking, we don't need to update
// previousAttr
// in the other case, because the other case is when
// it hasn't changed
// previousAttr = attr;
} else {
// previousAttr = null;
}
}
}
}
return handled;
}
/*
* Search the RegionContainer's regions looking for JSP content. If valid
* content is found, return the position >= 0 If no valid content is
* found, return NO_VALID_CONTENT. If a region starts after the line's
* endOffset, return END_OF_LINE.
*/
private static int getValidRegionPosition(
IStructuredModel model,
ITextRegionCollection regionContainer,
int startOffset,
int endOffset) {
ITextRegionList regions = regionContainer.getRegions();
for (int i = 0; i < regions.size(); i++) {
ITextRegion region = regions.get(i);
if (region instanceof ITextRegionCollection) {
int validPosition =
getValidRegionPosition(model, (ITextRegionCollection) region, startOffset, endOffset);
if (validPosition == END_OF_LINE || validPosition >= 0) return validPosition;
} else {
// region must be at least partially on selected line
if (regionContainer.getEndOffset(region) > startOffset) {
int regionStartOffset = regionContainer.getStartOffset(region);
// if region starts after line's endOffset, we're done
// searching
if (regionStartOffset > endOffset) return END_OF_LINE;
// If region is JSP content, make sure the language is
// Java not Javascript by
// checking the content assist adapter's type.
if (region.getType().equals(DOMJSPRegionContexts.JSP_CONTENT)) {
// DWM: this logic is not incorrect ... given changes
// to adapters, etc.
// but probably don't need anything here, since both
// Java and JavaScript
// are supported in V5.
// nsd_TODO: verify this!!!
// INodeNotifier notifier =
// (INodeNotifier)model.getNode(region.getStartOffset());
// IAdapterFactory factory =
// model.getFactoryRegistry().getFactoryFor(ContentAssistAdapter.class);
// if(factory instanceof
// HTMLContentAssistAdapterFactory) {
// INodeAdapter adapter =
// ((HTMLContentAssistAdapterFactory)factory).createAdapter(notifier,
// region);
// if(adapter != null && adapter instanceof
// JSPJavaContentAssistAdapter)
if (regionStartOffset > startOffset) return regionStartOffset;
else return startOffset;
// }
}
// a custom tag, jsp:useBean, getproperty or setproperty
// statement is also a valid breakpoint location
else if (region.getType().equals(DOMRegionContext.XML_TAG_NAME)
&& (isCustomTagRegion(model.getIndexedRegion(regionStartOffset))
|| regionContainer.getText(region).equals(JSP12Namespace.ElementName.USEBEAN)
|| regionContainer.getText(region).equals(JSP12Namespace.ElementName.GETPROPERTY)
|| regionContainer
.getText(region)
.equals(JSP12Namespace.ElementName.SETPROPERTY))) {
if (regionStartOffset > startOffset) return regionStartOffset;
else return startOffset;
} else {
// Defect #241090, the Text Nodes inside of JSP
// scriptlets, expressions, and declarations are valid
// breakpoint-able locations
boolean isCodeNode = false;
IndexedRegion node = model.getIndexedRegion(regionStartOffset);
if (node != null && node instanceof Node) {
Node domNode = (Node) node;
Node root = domNode.getOwnerDocument().getDocumentElement();
if (root != null
&& root.getNodeName().equals(JSP12Namespace.ElementName.ROOT)
&& domNode.getNodeType() == Node.TEXT_NODE
&& domNode.getParentNode() != null) {
String parentName = domNode.getParentNode().getNodeName();
isCodeNode =
parentName.equals(JSP12Namespace.ElementName.SCRIPTLET)
|| parentName.equals(JSP12Namespace.ElementName.EXPRESSION)
|| parentName.equals(JSP12Namespace.ElementName.DECLARATION);
}
}
if (isCodeNode) {
if (regionStartOffset > startOffset) return regionStartOffset;
else return startOffset;
}
}
}
}
}
return NO_VALID_CONTENT;
}