public void collapseIfEmpty() {
final XmlTag[] tags = getSubTags();
if (tags.length > 0) {
return;
}
final ASTNode closingName = XmlChildRole.CLOSING_TAG_NAME_FINDER.findChild(this);
final ASTNode startTagEnd = XmlChildRole.START_TAG_END_FINDER.findChild(this);
if (closingName == null || startTagEnd == null) {
return;
}
final PomModel pomModel = PomManager.getModel(getProject());
final PomTransactionBase transaction =
new PomTransactionBase(this, pomModel.getModelAspect(XmlAspect.class)) {
@Nullable
public PomModelEvent runInner() {
final ASTNode closingBracket = closingName.getTreeNext();
removeRange(startTagEnd, closingBracket);
final LeafElement emptyTagEnd =
Factory.createSingleLeafElement(
XmlTokenType.XML_EMPTY_ELEMENT_END, "/>", 0, 2, null, getManager());
replaceChild(closingBracket, emptyTagEnd);
return null;
}
};
try {
pomModel.runTransaction(transaction);
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
@NotNull
public PsiReference[] getReferences() {
ProgressManager.checkCanceled();
final ASTNode startTagName = XmlChildRole.START_TAG_NAME_FINDER.findChild(this);
if (startTagName == null) return PsiReference.EMPTY_ARRAY;
final ASTNode endTagName = XmlChildRole.CLOSING_TAG_NAME_FINDER.findChild(this);
List<PsiReference> refs = new ArrayList<PsiReference>();
String prefix = getNamespacePrefix();
TagNameReference startTagRef =
TagNameReference.createTagNameReference(this, startTagName, true);
refs.add(startTagRef);
if (prefix.length() > 0) {
refs.add(createPrefixReference(startTagName, prefix, startTagRef));
}
if (endTagName != null) {
TagNameReference endTagRef = TagNameReference.createTagNameReference(this, endTagName, false);
refs.add(endTagRef);
prefix = XmlUtil.findPrefixByQualifiedName(endTagName.getText());
if (StringUtil.isNotEmpty(prefix)) {
refs.add(createPrefixReference(endTagName, prefix, endTagRef));
}
}
// ArrayList.addAll() makes a clone of the collection
//noinspection ManualArrayToCollectionCopy
for (PsiReference ref :
ReferenceProvidersRegistry.getReferencesFromProviders(this, XmlTag.class)) {
refs.add(ref);
}
return ContainerUtil.toArray(refs, new PsiReference[refs.size()]);
}
@Override
public void onMessage(PsiElement host, String message) {
final ASTNode node = host.getNode();
assert node != null;
if (host instanceof XmlAttribute) {
final ASTNode nameNode = XmlChildRole.ATTRIBUTE_NAME_FINDER.findChild(node);
createAnnotation(nameNode, message);
} else if (host instanceof XmlTag) {
final ASTNode start = XmlChildRole.START_TAG_NAME_FINDER.findChild(node);
if (start != null) {
createAnnotation(start, message);
}
final ASTNode end = XmlChildRole.CLOSING_TAG_NAME_FINDER.findChild(node);
if (end != null) {
createAnnotation(end, message);
}
} else {
createAnnotation(node, message);
}
}
public Result beforeCharTyped(
final char c,
final Project project,
final Editor editor,
final PsiFile editedFile,
final FileType fileType) {
final XmlEditorOptions xmlEditorOptions = XmlEditorOptions.getInstance();
if (c == '>'
&& xmlEditorOptions != null
&& xmlEditorOptions.isAutomaticallyInsertClosingTag()
&& (editedFile.getLanguage() instanceof XMLLanguage
|| editedFile.getViewProvider().getBaseLanguage() instanceof XMLLanguage)) {
PsiDocumentManager.getInstance(project).commitAllDocuments();
PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());
FileViewProvider provider = editedFile.getViewProvider();
int offset = editor.getCaretModel().getOffset();
PsiElement element, elementAtCaret = null;
if (offset < editor.getDocument().getTextLength()) {
elementAtCaret = element = provider.findElementAt(offset, XMLLanguage.class);
if (!(element instanceof PsiWhiteSpace)) {
boolean nonAcceptableDelimiter = true;
if (element instanceof XmlToken) {
IElementType tokenType = ((XmlToken) element).getTokenType();
if (tokenType == XmlTokenType.XML_START_TAG_START
|| tokenType == XmlTokenType.XML_END_TAG_START) {
if (offset > 0) {
PsiElement previousElement = provider.findElementAt(offset - 1, XMLLanguage.class);
if (previousElement instanceof XmlToken) {
tokenType = ((XmlToken) previousElement).getTokenType();
element = previousElement;
nonAcceptableDelimiter = false;
}
}
} else if (tokenType == XmlTokenType.XML_NAME) {
if (element.getNextSibling() instanceof PsiErrorElement) {
nonAcceptableDelimiter = false;
}
}
if (tokenType == XmlTokenType.XML_TAG_END
|| tokenType == XmlTokenType.XML_EMPTY_ELEMENT_END
&& element.getTextOffset() == offset - 1) {
editor.getCaretModel().moveToOffset(offset + 1);
editor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE);
return Result.STOP;
}
}
if (nonAcceptableDelimiter) return Result.CONTINUE;
} else {
// check if right after empty end
PsiElement previousElement = provider.findElementAt(offset - 1, XMLLanguage.class);
if (previousElement instanceof XmlToken) {
final IElementType tokenType = ((XmlToken) previousElement).getTokenType();
if (tokenType == XmlTokenType.XML_EMPTY_ELEMENT_END) {
return Result.STOP;
}
}
}
PsiElement parent = element.getParent();
if (parent instanceof XmlText) {
final String text = parent.getText();
// check /
final int index = offset - parent.getTextOffset() - 1;
if (index >= 0 && text.charAt(index) == '/') {
return Result.CONTINUE; // already seen /
}
element = parent.getPrevSibling();
} else if (parent instanceof XmlTag && !(element.getPrevSibling() instanceof XmlTag)) {
element = parent;
} else if (parent instanceof XmlAttributeValue) {
element = parent;
}
} else {
element =
provider.findElementAt(editor.getDocument().getTextLength() - 1, XMLLanguage.class);
if (element == null) return Result.CONTINUE;
element = element.getParent();
}
if (offset > 0 && offset <= editor.getDocument().getTextLength()) {
if (editor.getDocument().getCharsSequence().charAt(offset - 1)
== '/') { // Some languages (e.g. GSP) allow character '/' in tag name.
return Result.CONTINUE;
}
}
if (element instanceof XmlAttributeValue) {
element = element.getParent().getParent();
}
while (element instanceof PsiWhiteSpace) element = element.getPrevSibling();
if (element instanceof XmlDocument) { // hack for closing tags in RHTML
element = element.getLastChild();
}
if (element == null) return Result.CONTINUE;
if (!(element instanceof XmlTag)) {
if (element instanceof XmlTokenImpl
&& element.getPrevSibling() != null
&& element.getPrevSibling().getText().equals("<")) {
// tag is started and there is another text in the end
editor.getDocument().insertString(offset, "</" + element.getText() + ">");
}
return Result.CONTINUE;
}
XmlTag tag = (XmlTag) element;
if (XmlUtil.getTokenOfType(tag, XmlTokenType.XML_TAG_END) != null) return Result.CONTINUE;
if (XmlUtil.getTokenOfType(tag, XmlTokenType.XML_EMPTY_ELEMENT_END) != null)
return Result.CONTINUE;
final XmlToken startToken = XmlUtil.getTokenOfType(tag, XmlTokenType.XML_START_TAG_START);
if (startToken == null || !startToken.getText().equals("<")) return Result.CONTINUE;
String name = tag.getName();
if (elementAtCaret instanceof XmlToken
&& ((XmlToken) elementAtCaret).getTokenType() == XmlTokenType.XML_NAME) {
name = name.substring(0, offset - elementAtCaret.getTextOffset());
}
if (tag instanceof HtmlTag && HtmlUtil.isSingleHtmlTag(name)) return Result.CONTINUE;
if ("".equals(name)) return Result.CONTINUE;
int tagOffset = tag.getTextRange().getStartOffset();
final XmlToken nameToken = XmlUtil.getTokenOfType(tag, XmlTokenType.XML_NAME);
if (nameToken != null && nameToken.getTextRange().getStartOffset() > offset)
return Result.CONTINUE;
HighlighterIterator iterator = ((EditorEx) editor).getHighlighter().createIterator(tagOffset);
if (BraceMatchingUtil.matchBrace(
editor.getDocument().getCharsSequence(),
editedFile.getFileType(),
iterator,
true,
true)) {
PsiElement parent = tag.getParent();
boolean hasBalance = true;
while (parent instanceof XmlTag && name.equals(((XmlTag) parent).getName())) {
ASTNode astNode = XmlChildRole.CLOSING_TAG_NAME_FINDER.findChild(parent.getNode());
if (astNode == null) {
hasBalance = false;
break;
}
parent = parent.getParent();
}
if (hasBalance) {
hasBalance = false;
for (ASTNode node = parent.getNode().getLastChildNode();
node != null;
node = node.getTreePrev()) {
ASTNode leaf = node;
if (leaf.getElementType() == TokenType.ERROR_ELEMENT) {
ASTNode firstChild = leaf.getFirstChildNode();
if (firstChild != null) leaf = firstChild;
else {
PsiElement psiElement = PsiTreeUtil.nextLeaf(leaf.getPsi());
leaf = psiElement != null ? psiElement.getNode() : null;
}
if (leaf != null && leaf.getElementType() == TokenType.WHITE_SPACE) {
PsiElement psiElement = PsiTreeUtil.nextLeaf(leaf.getPsi());
if (psiElement != null) leaf = psiElement.getNode();
}
}
if (leaf != null && leaf.getElementType() == XmlTokenType.XML_END_TAG_START) {
ASTNode treeNext = leaf.getTreeNext();
IElementType treeNextType;
if (treeNext != null
&& ((treeNextType = treeNext.getElementType()) == XmlTokenType.XML_NAME
|| treeNextType == XmlTokenType.XML_TAG_NAME)) {
if (name.equals(treeNext.getText())) {
ASTNode parentEndName =
parent instanceof XmlTag
? XmlChildRole.CLOSING_TAG_NAME_FINDER.findChild(parent.getNode())
: null;
hasBalance =
!(parent instanceof XmlTag)
|| parentEndName != null && !parentEndName.getText().equals(name);
break;
}
}
}
}
}
if (hasBalance) return Result.CONTINUE;
}
TextRange cdataReformatRange = null;
final XmlElementDescriptor descriptor = tag.getDescriptor();
if (descriptor instanceof XmlElementDescriptorWithCDataContent) {
final XmlElementDescriptorWithCDataContent cDataContainer =
(XmlElementDescriptorWithCDataContent) descriptor;
if (cDataContainer.requiresCdataBracesInContext(tag)) {
int rangeStart = offset;
@NonNls final String cDataStart = "><![CDATA[";
final String inserted = cDataStart + "\n]]>";
editor.getDocument().insertString(offset, inserted);
final int newoffset = offset + cDataStart.length();
editor.getCaretModel().moveToOffset(newoffset);
offset += inserted.length();
cdataReformatRange = new TextRange(rangeStart, offset + 1);
}
}
editor.getDocument().insertString(offset, "</" + name + ">");
if (cdataReformatRange != null) {
PsiDocumentManager.getInstance(project).commitDocument(editor.getDocument());
try {
CodeStyleManager.getInstance(project)
.reformatText(
file, cdataReformatRange.getStartOffset(), cdataReformatRange.getEndOffset());
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
return cdataReformatRange != null ? Result.STOP : Result.CONTINUE;
}
return Result.CONTINUE;
}
