@Nullable
private TextRange getSelectedComments(CharSequence text, String prefix, String suffix) {
TextRange commentedRange = null;
if (myCaret.hasSelection()) {
int selectionStart = myCaret.getSelectionStart();
selectionStart = CharArrayUtil.shiftForward(text, selectionStart, " \t\n");
int selectionEnd = myCaret.getSelectionEnd() - 1;
selectionEnd = CharArrayUtil.shiftBackward(text, selectionEnd, " \t\n") + 1;
if (selectionEnd - selectionStart >= prefix.length() + suffix.length()
&& CharArrayUtil.regionMatches(text, selectionStart, prefix)
&& CharArrayUtil.regionMatches(text, selectionEnd - suffix.length(), suffix)) {
commentedRange = new TextRange(selectionStart, selectionEnd);
}
}
return commentedRange;
}
@Nullable
private PsiElement findCommentAtCaret() {
int offset = myCaret.getOffset();
TextRange range = new TextRange(myCaret.getSelectionStart(), myCaret.getSelectionEnd());
if (offset == range.getEndOffset()) {
offset--;
}
if (offset <= range.getStartOffset()) {
offset++;
}
PsiElement elt = myFile.getViewProvider().findElementAt(offset);
if (elt == null) return null;
PsiElement comment = PsiTreeUtil.getParentOfType(elt, PsiComment.class, false);
if (comment == null || myCaret.hasSelection() && !range.contains(comment.getTextRange())) {
return null;
}
return comment;
}
private boolean testSelectionForNonComments() {
if (!myCaret.hasSelection()) {
return true;
}
TextRange range = new TextRange(myCaret.getSelectionStart(), myCaret.getSelectionEnd() - 1);
for (PsiElement element = myFile.findElementAt(range.getStartOffset());
element != null && range.intersects(element.getTextRange());
element = element.getNextSibling()) {
if (element instanceof OuterLanguageElement) {
if (!isInjectedWhiteSpace(range, (OuterLanguageElement) element)) {
return false;
}
} else {
if (!isWhiteSpaceOrComment(element, range)) {
return false;
}
}
}
return true;
}
@Override
public void invoke(
@NotNull Project project,
@NotNull Editor editor,
@NotNull Caret caret,
@NotNull PsiFile file) {
if (!CodeInsightUtilBase.prepareEditorForWrite(editor)) return;
myProject = project;
myEditor = editor;
myCaret = caret;
myFile = file;
myDocument = editor.getDocument();
if (!FileDocumentManager.getInstance().requestWriting(myDocument, project)) {
return;
}
FeatureUsageTracker.getInstance().triggerFeatureUsed("codeassists.comment.block");
final Commenter commenter = findCommenter(myFile, myEditor, caret);
if (commenter == null) return;
final String prefix;
final String suffix;
if (commenter instanceof SelfManagingCommenter) {
final SelfManagingCommenter selfManagingCommenter = (SelfManagingCommenter) commenter;
mySelfManagedCommenterData =
selfManagingCommenter.createBlockCommentingState(
caret.getSelectionStart(), caret.getSelectionEnd(), myDocument, myFile);
if (mySelfManagedCommenterData == null) {
mySelfManagedCommenterData = SelfManagingCommenter.EMPTY_STATE;
}
prefix =
selfManagingCommenter.getBlockCommentPrefix(
caret.getSelectionStart(), myDocument, mySelfManagedCommenterData);
suffix =
selfManagingCommenter.getBlockCommentSuffix(
caret.getSelectionEnd(), myDocument, mySelfManagedCommenterData);
} else {
prefix = commenter.getBlockCommentPrefix();
suffix = commenter.getBlockCommentSuffix();
}
if (prefix == null || suffix == null) return;
TextRange commentedRange = findCommentedRange(commenter);
if (commentedRange != null) {
final int commentStart = commentedRange.getStartOffset();
final int commentEnd = commentedRange.getEndOffset();
int selectionStart = commentStart;
int selectionEnd = commentEnd;
if (myCaret.hasSelection()) {
selectionStart = myCaret.getSelectionStart();
selectionEnd = myCaret.getSelectionEnd();
}
if ((commentStart < selectionStart || commentStart >= selectionEnd)
&& (commentEnd <= selectionStart || commentEnd > selectionEnd)) {
commentRange(selectionStart, selectionEnd, prefix, suffix, commenter);
} else {
uncommentRange(commentedRange, trim(prefix), trim(suffix), commenter);
}
} else {
if (myCaret.hasSelection()) {
int selectionStart = myCaret.getSelectionStart();
int selectionEnd = myCaret.getSelectionEnd();
if (commenter instanceof IndentedCommenter) {
final Boolean value = ((IndentedCommenter) commenter).forceIndentedLineComment();
if (value != null && value == Boolean.TRUE) {
selectionStart =
myDocument.getLineStartOffset(myDocument.getLineNumber(selectionStart));
selectionEnd = myDocument.getLineEndOffset(myDocument.getLineNumber(selectionEnd));
}
}
commentRange(selectionStart, selectionEnd, prefix, suffix, commenter);
} else {
EditorUtil.fillVirtualSpaceUntilCaret(editor);
int caretOffset = myCaret.getOffset();
if (commenter instanceof IndentedCommenter) {
final Boolean value = ((IndentedCommenter) commenter).forceIndentedLineComment();
if (value != null && value == Boolean.TRUE) {
final int lineNumber = myDocument.getLineNumber(caretOffset);
final int start = myDocument.getLineStartOffset(lineNumber);
final int end = myDocument.getLineEndOffset(lineNumber);
commentRange(start, end, prefix, suffix, commenter);
return;
}
}
myDocument.insertString(caretOffset, prefix + suffix);
myCaret.moveToOffset(caretOffset + prefix.length());
}
}
}
