private static int calcStartReformatOffset(@NotNull PsiElement element) {
int result = element.getTextRange().getStartOffset();
for (PsiElement e = element.getPrevSibling(); e != null; e = e.getPrevSibling()) {
if (e instanceof PsiWhiteSpace) {
result = e.getTextRange().getStartOffset();
} else {
break;
}
}
return result;
}
@Nullable
private PsiComment createComment(final CharSequence buffer, final CodeInsightSettings settings)
throws IncorrectOperationException {
myDocument.insertString(myOffset, buffer);
PsiDocumentManager.getInstance(getProject()).commitAllDocuments();
CodeStyleManager.getInstance(getProject())
.adjustLineIndent(myFile, myOffset + buffer.length() - 2);
PsiComment comment =
PsiTreeUtil.getNonStrictParentOfType(myFile.findElementAt(myOffset), PsiComment.class);
comment = createJavaDocStub(settings, comment, getProject());
if (comment == null) {
return null;
}
CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(getProject());
CodeStyleSettings codeStyleSettings = CodeStyleSettingsManager.getSettings(getProject());
boolean old = codeStyleSettings.ENABLE_JAVADOC_FORMATTING;
codeStyleSettings.ENABLE_JAVADOC_FORMATTING = false;
try {
comment = (PsiComment) codeStyleManager.reformat(comment);
} finally {
codeStyleSettings.ENABLE_JAVADOC_FORMATTING = old;
}
PsiElement next = comment.getNextSibling();
if (next == null && comment.getParent().getClass() == comment.getClass()) {
next =
comment
.getParent()
.getNextSibling(); // expanding chameleon comment produces comment under comment
}
if (next != null) {
next =
myFile.findElementAt(
next.getTextRange().getStartOffset()); // maybe switch to another tree
}
if (next != null
&& (!FormatterUtil.containsWhiteSpacesOnly(next.getNode())
|| !next.getText().contains(LINE_SEPARATOR))) {
int lineBreakOffset = comment.getTextRange().getEndOffset();
myDocument.insertString(lineBreakOffset, LINE_SEPARATOR);
PsiDocumentManager.getInstance(getProject()).commitAllDocuments();
codeStyleManager.adjustLineIndent(myFile, lineBreakOffset + 1);
comment =
PsiTreeUtil.getNonStrictParentOfType(myFile.findElementAt(myOffset), PsiComment.class);
}
return comment;
}
/**
* Generates a comment if possible.
*
* <p>It's assumed that this method {@link PsiDocumentManager#commitDocument(Document) syncs} all
* PSI-document changes during the processing.
*
* @param anchor target element for which a comment should be generated
* @param editor target editor
* @param commenter commenter to use
* @param project current project
*/
private static void generateComment(
@NotNull PsiElement anchor,
@NotNull Editor editor,
@NotNull CodeDocumentationProvider documentationProvider,
@NotNull CodeDocumentationAwareCommenter commenter,
@NotNull Project project) {
Document document = editor.getDocument();
int commentStartOffset = anchor.getTextRange().getStartOffset();
int lineStartOffset = document.getLineStartOffset(document.getLineNumber(commentStartOffset));
if (lineStartOffset > 0 && lineStartOffset < commentStartOffset) {
// Example:
// void test1() {
// }
// void test2() {
// <offset>
// }
// We want to insert the comment at the start of the line where 'test2()' is declared.
int nonWhiteSpaceOffset =
CharArrayUtil.shiftBackward(document.getCharsSequence(), commentStartOffset - 1, " \t");
commentStartOffset = Math.max(nonWhiteSpaceOffset, lineStartOffset);
}
int commentBodyRelativeOffset = 0;
int caretOffsetToSet = -1;
StringBuilder buffer = new StringBuilder();
String commentPrefix = commenter.getDocumentationCommentPrefix();
if (commentPrefix != null) {
buffer.append(commentPrefix).append("\n");
commentBodyRelativeOffset += commentPrefix.length() + 1;
}
String linePrefix = commenter.getDocumentationCommentLinePrefix();
if (linePrefix != null) {
buffer.append(linePrefix);
commentBodyRelativeOffset += linePrefix.length();
caretOffsetToSet = commentStartOffset + commentBodyRelativeOffset;
}
buffer.append("\n");
commentBodyRelativeOffset++;
String commentSuffix = commenter.getDocumentationCommentSuffix();
if (commentSuffix != null) {
buffer.append(commentSuffix).append("\n");
}
if (buffer.length() <= 0) {
return;
}
document.insertString(commentStartOffset, buffer);
PsiDocumentManager docManager = PsiDocumentManager.getInstance(project);
docManager.commitDocument(document);
Pair<PsiElement, PsiComment> pair = documentationProvider.parseContext(anchor);
if (pair == null || pair.second == null) {
return;
}
String stub = documentationProvider.generateDocumentationContentStub(pair.second);
CaretModel caretModel = editor.getCaretModel();
if (stub != null) {
int insertionOffset = commentStartOffset + commentBodyRelativeOffset;
// if (CodeStyleSettingsManager.getSettings(project).JD_ADD_BLANK_AFTER_DESCRIPTION) {
// buffer.setLength(0);
// if (linePrefix != null) {
// buffer.append(linePrefix);
// }
// buffer.append("\n");
// buffer.append(stub);
// stub = buffer.toString();
// }
document.insertString(insertionOffset, stub);
docManager.commitDocument(document);
pair = documentationProvider.parseContext(anchor);
}
if (caretOffsetToSet >= 0) {
caretModel.moveToOffset(caretOffsetToSet);
}
if (pair == null || pair.second == null) {
return;
}
int start = Math.min(calcStartReformatOffset(pair.first), calcStartReformatOffset(pair.second));
int end = pair.second.getTextRange().getEndOffset();
CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(project);
codeStyleManager.reformatText(anchor.getContainingFile(), start, end);
int caretOffset = caretModel.getOffset();
if (caretOffset > 0 && caretOffset <= document.getTextLength()) {
char c = document.getCharsSequence().charAt(caretOffset - 1);
if (!StringUtil.isWhiteSpace(c)) {
document.insertString(caretOffset, " ");
caretModel.moveToOffset(caretOffset + 1);
}
}
}
private boolean insertDocAsterisk(
int lineStart,
boolean docAsterisk,
boolean previousLineIndentUsed,
CodeDocumentationAwareCommenter commenter) {
PsiElement atLineStart = myFile.findElementAt(lineStart);
if (atLineStart == null) return false;
final String linePrefix = commenter.getDocumentationCommentLinePrefix();
final String docPrefix = commenter.getDocumentationCommentPrefix();
final String text = atLineStart.getText();
final TextRange textRange = atLineStart.getTextRange();
if (text.equals(linePrefix)
|| text.equals(docPrefix)
|| docPrefix != null
&& text.regionMatches(
lineStart - textRange.getStartOffset(), docPrefix, 0, docPrefix.length())
|| linePrefix != null
&& text.regionMatches(
lineStart - textRange.getStartOffset(), linePrefix, 0, linePrefix.length())) {
PsiElement element = myFile.findElementAt(myOffset);
if (element == null) return false;
PsiComment comment =
element instanceof PsiComment
? (PsiComment) element
: PsiTreeUtil.getParentOfType(element, PsiComment.class, false);
if (comment != null) {
int commentEnd = comment.getTextRange().getEndOffset();
if (myOffset >= commentEnd) {
docAsterisk = false;
} else {
removeTrailingSpaces(myDocument, myOffset);
String toInsert =
previousLineIndentUsed
? "*"
: CodeDocumentationUtil.createDocCommentLine("", getProject(), commenter);
myDocument.insertString(myOffset, toInsert);
PsiDocumentManager.getInstance(getProject()).commitAllDocuments();
}
} else {
docAsterisk = false;
}
} else if (linePrefix != null
&& atLineStart instanceof PsiComment
&& ((PsiComment) atLineStart).getTokenType() == commenter.getBlockCommentTokenType()) {
// Check if C-Style comment already uses asterisks.
boolean usesAstersk = false;
int commentLine = myDocument.getLineNumber(textRange.getStartOffset());
if (commentLine < myDocument.getLineCount() - 1 && textRange.getEndOffset() >= myOffset) {
int nextLineOffset = myDocument.getLineStartOffset(commentLine + 1);
if (nextLineOffset < textRange.getEndOffset()) {
final CharSequence chars = myDocument.getCharsSequence();
nextLineOffset = CharArrayUtil.shiftForward(chars, nextLineOffset, " \t");
usesAstersk = CharArrayUtil.regionMatches(chars, nextLineOffset, linePrefix);
}
}
if (usesAstersk) {
removeTrailingSpaces(myDocument, myOffset);
myDocument.insertString(myOffset, linePrefix + " ");
PsiDocumentManager.getInstance(getProject()).commitAllDocuments();
}
docAsterisk = usesAstersk;
} else {
docAsterisk = false;
}
return docAsterisk;
}
