private boolean paintPlaceholderText(Graphics2D g) {
CharSequence hintText = myEditor.getPlaceholder();
EditorComponentImpl editorComponent = myEditor.getContentComponent();
if (myDocument.getTextLength() > 0
|| hintText == null
|| hintText.length() == 0
|| KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner() == editorComponent
&& !myEditor.getShowPlaceholderWhenFocused()) {
return false;
}
hintText =
SwingUtilities.layoutCompoundLabel(
g.getFontMetrics(),
hintText.toString(),
null,
0,
0,
0,
0,
editorComponent.getBounds(),
new Rectangle(),
new Rectangle(),
0);
g.setColor(myEditor.getFoldingModel().getPlaceholderAttributes().getForegroundColor());
g.setFont(myEditor.getColorsScheme().getFont(EditorFontType.PLAIN));
g.drawString(hintText.toString(), 0, myView.getAscent());
return true;
}
@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;
}
private static void removeTrailingSpaces(final Document document, final int startOffset) {
int endOffset = startOffset;
final CharSequence charsSequence = document.getCharsSequence();
for (int i = startOffset; i < charsSequence.length(); i++) {
final char c = charsSequence.charAt(i);
endOffset = i;
if (c == '\n') {
break;
}
if (c != ' ' && c != '\t') {
return;
}
}
document.deleteString(startOffset, endOffset);
}
private void executeWriteActionInner(Editor editor, DataContext dataContext, Project project) {
CodeInsightSettings settings = CodeInsightSettings.getInstance();
if (project == null) {
myOriginalHandler.execute(editor, dataContext);
return;
}
final Document document = editor.getDocument();
final PsiFile file = PsiUtilBase.getPsiFileInEditor(editor, project);
if (file == null) {
myOriginalHandler.execute(editor, dataContext);
return;
}
CommandProcessor.getInstance()
.setCurrentCommandName(CodeInsightBundle.message("command.name.typing"));
EditorModificationUtil.deleteSelectedText(editor);
int caretOffset = editor.getCaretModel().getOffset();
CharSequence text = document.getCharsSequence();
int length = document.getTextLength();
if (caretOffset < length && text.charAt(caretOffset) != '\n') {
int offset1 = CharArrayUtil.shiftBackward(text, caretOffset, " \t");
if (offset1 < 0 || text.charAt(offset1) == '\n') {
int offset2 = CharArrayUtil.shiftForward(text, offset1 + 1, " \t");
boolean isEmptyLine = offset2 >= length || text.charAt(offset2) == '\n';
if (!isEmptyLine) { // we are in leading spaces of a non-empty line
myOriginalHandler.execute(editor, dataContext);
return;
}
}
}
final PsiDocumentManager documentManager = PsiDocumentManager.getInstance(project);
documentManager.commitDocument(document);
boolean forceIndent = false;
boolean forceSkipIndent = false;
Ref<Integer> caretOffsetRef = new Ref<Integer>(caretOffset);
Ref<Integer> caretAdvanceRef = new Ref<Integer>(0);
final EnterHandlerDelegate[] delegates = Extensions.getExtensions(EnterHandlerDelegate.EP_NAME);
for (EnterHandlerDelegate delegate : delegates) {
EnterHandlerDelegate.Result result =
delegate.preprocessEnter(
file, editor, caretOffsetRef, caretAdvanceRef, dataContext, myOriginalHandler);
if (caretOffsetRef.get() > document.getTextLength()) {
throw new AssertionError("Wrong caret offset change by " + delegate);
}
if (result == EnterHandlerDelegate.Result.Stop) {
return;
}
if (result != EnterHandlerDelegate.Result.Continue) {
if (result == EnterHandlerDelegate.Result.DefaultForceIndent) {
forceIndent = true;
} else if (result == EnterHandlerDelegate.Result.DefaultSkipIndent) {
forceSkipIndent = true;
}
break;
}
}
text = document.getCharsSequence(); // update after changes done in preprocessEnter()
caretOffset = caretOffsetRef.get().intValue();
boolean isFirstColumn = caretOffset == 0 || text.charAt(caretOffset - 1) == '\n';
final boolean insertSpace =
!isFirstColumn
&& !(caretOffset >= text.length()
|| text.charAt(caretOffset) == ' '
|| text.charAt(caretOffset) == '\t');
editor.getCaretModel().moveToOffset(caretOffset);
myOriginalHandler.execute(editor, dataContext);
if (!editor.isInsertMode() || forceSkipIndent) {
return;
}
if (settings.SMART_INDENT_ON_ENTER || forceIndent) {
caretOffset += 1;
caretOffset =
CharArrayUtil.shiftForward(editor.getDocument().getCharsSequence(), caretOffset, " \t");
} else {
caretOffset = editor.getCaretModel().getOffset();
}
documentManager.commitAllDocuments();
final DoEnterAction action =
new DoEnterAction(
file,
editor,
document,
dataContext,
caretOffset,
!insertSpace,
caretAdvanceRef.get(),
project);
action.setForceIndent(forceIndent);
action.run();
documentManager.commitDocument(document);
for (EnterHandlerDelegate delegate : delegates) {
if (delegate.postProcessEnter(file, editor, dataContext)
== EnterHandlerDelegate.Result.Stop) {
break;
}
}
documentManager.commitDocument(document);
}
private void uncommentLine(int line) {
Commenter commenter = myCommenters[line - myStartLine];
if (commenter == null) commenter = findCommenter(line);
if (commenter == null) return;
final int startOffset = myStartOffsets[line - myStartLine];
if (commenter instanceof SelfManagingCommenter) {
final SelfManagingCommenter selfManagingCommenter = (SelfManagingCommenter) commenter;
selfManagingCommenter.uncommentLine(
line, startOffset, myDocument, myCommenterStateMap.get(selfManagingCommenter));
return;
}
final int endOffset = myEndOffsets[line - myStartLine];
if (startOffset == endOffset) {
return;
}
String prefix = commenter.getLineCommentPrefix();
if (prefix != null) {
CharSequence chars = myDocument.getCharsSequence();
if (commenter instanceof CommenterWithLineSuffix) {
CommenterWithLineSuffix commenterWithLineSuffix = (CommenterWithLineSuffix) commenter;
String suffix = commenterWithLineSuffix.getLineCommentSuffix();
int theEnd = endOffset > 0 ? endOffset : myDocument.getLineEndOffset(line);
while (theEnd > startOffset && Character.isWhitespace(chars.charAt(theEnd - 1))) {
theEnd--;
}
String lineText = myDocument.getText(new TextRange(startOffset, theEnd));
if (lineText.indexOf(suffix) != -1) {
int start = startOffset + lineText.indexOf(suffix);
myDocument.deleteString(start, start + suffix.length());
}
}
boolean skipNewLine = false;
boolean commented =
CharArrayUtil.regionMatches(chars, startOffset, prefix)
|| (skipNewLine =
prefix.endsWith(" ")
&& CharArrayUtil.regionMatches(chars, startOffset, prefix.trim() + "\n"));
assert commented;
int charsToDelete = skipNewLine ? prefix.trim().length() : prefix.length();
int theEnd = endOffset > 0 ? endOffset : chars.length();
// if there's exactly one space after line comment prefix and before the text that follows in
// the same line, delete the space too
if (startOffset + charsToDelete < theEnd - 1
&& chars.charAt(startOffset + charsToDelete) == ' ') {
if (startOffset + charsToDelete == theEnd - 2
|| chars.charAt(startOffset + charsToDelete + 1) != ' ') {
charsToDelete++;
}
}
myDocument.deleteString(startOffset, startOffset + charsToDelete);
return;
}
String text = myDocument.getCharsSequence().subSequence(startOffset, endOffset).toString();
prefix = commenter.getBlockCommentPrefix();
final String suffix = commenter.getBlockCommentSuffix();
if (prefix == null || suffix == null) {
return;
}
IntArrayList prefixes = new IntArrayList();
IntArrayList suffixes = new IntArrayList();
for (int position = 0; position < text.length(); ) {
int prefixPos = text.indexOf(prefix, position);
if (prefixPos == -1) {
break;
}
prefixes.add(prefixPos);
position = prefixPos + prefix.length();
int suffixPos = text.indexOf(suffix, position);
if (suffixPos == -1) {
suffixPos = text.length() - suffix.length();
}
suffixes.add(suffixPos);
position = suffixPos + suffix.length();
}
assert prefixes.size() == suffixes.size();
for (int i = prefixes.size() - 1; i >= 0; i--) {
uncommentRange(
startOffset + prefixes.get(i),
Math.min(startOffset + suffixes.get(i) + suffix.length(), endOffset),
commenter);
}
}
@Nullable
private TextRange findCommentedRange(final Commenter commenter) {
final CharSequence text = myDocument.getCharsSequence();
final FileType fileType = myFile.getFileType();
if (fileType instanceof CustomSyntaxTableFileType) {
Lexer lexer =
new CustomFileTypeLexer(((CustomSyntaxTableFileType) fileType).getSyntaxTable());
final int caretOffset = myCaret.getOffset();
int commentStart =
CharArrayUtil.lastIndexOf(text, commenter.getBlockCommentPrefix(), caretOffset);
if (commentStart == -1) return null;
lexer.start(text, commentStart, text.length());
if (lexer.getTokenType() == CustomHighlighterTokenType.MULTI_LINE_COMMENT
&& lexer.getTokenEnd() >= caretOffset) {
return new TextRange(commentStart, lexer.getTokenEnd());
}
return null;
}
final String prefix;
final String suffix;
// Custom uncommenter is able to find commented block inside of selected text
final String selectedText = myCaret.getSelectedText();
if ((commenter instanceof CustomUncommenter) && selectedText != null) {
final TextRange commentedRange =
((CustomUncommenter) commenter).findMaximumCommentedRange(selectedText);
if (commentedRange == null) {
return null;
}
// Uncommenter returns range relative to text start, so we need to shift it to make abosolute.
return commentedRange.shiftRight(myCaret.getSelectionStart());
}
if (commenter instanceof SelfManagingCommenter) {
SelfManagingCommenter selfManagingCommenter = (SelfManagingCommenter) commenter;
prefix =
selfManagingCommenter.getBlockCommentPrefix(
myCaret.getSelectionStart(), myDocument, mySelfManagedCommenterData);
suffix =
selfManagingCommenter.getBlockCommentSuffix(
myCaret.getSelectionEnd(), myDocument, mySelfManagedCommenterData);
} else {
prefix = trim(commenter.getBlockCommentPrefix());
suffix = trim(commenter.getBlockCommentSuffix());
}
if (prefix == null || suffix == null) return null;
TextRange commentedRange;
if (commenter instanceof SelfManagingCommenter) {
commentedRange =
((SelfManagingCommenter) commenter)
.getBlockCommentRange(
myCaret.getSelectionStart(),
myCaret.getSelectionEnd(),
myDocument,
mySelfManagedCommenterData);
} else {
if (!testSelectionForNonComments()) {
return null;
}
commentedRange = getSelectedComments(text, prefix, suffix);
}
if (commentedRange == null) {
PsiElement comment = findCommentAtCaret();
if (comment != null) {
String commentText = comment.getText();
if (commentText.startsWith(prefix) && commentText.endsWith(suffix)) {
commentedRange = comment.getTextRange();
}
}
}
return commentedRange;
}