@Override
public boolean checkAvailable(
@NotNull final Editor editor,
@NotNull final PsiFile file,
@NotNull final MoveInfo info,
final boolean down) {
// if (!(file instanceof PsiJavaFile)) return false;
final boolean available = super.checkAvailable(editor, file, info, down);
if (!available) return false;
LineRange range = info.toMove;
range = expandLineRangeToCoverPsiElements(range, editor, file);
if (range == null) return false;
info.toMove = range;
final int startOffset = editor.logicalPositionToOffset(new LogicalPosition(range.startLine, 0));
final int endOffset = editor.logicalPositionToOffset(new LogicalPosition(range.endLine, 0));
final PsiElement[] statements =
CodeInsightUtil.findStatementsInRange(file, startOffset, endOffset);
if (statements.length == 0) return false;
range.firstElement = statements[0];
range.lastElement = statements[statements.length - 1];
if (!checkMovingInsideOutside(file, editor, range, info, down)) {
info.toMove2 = null;
return true;
}
return true;
}
private boolean checkMovingInsideOutside(
PsiFile file,
final Editor editor,
LineRange range,
@NotNull final MoveInfo info,
final boolean down) {
final int offset = editor.getCaretModel().getOffset();
PsiElement elementAtOffset = file.getViewProvider().findElementAt(offset, StdLanguages.JAVA);
if (elementAtOffset == null) return false;
PsiElement guard = elementAtOffset;
do {
guard =
PsiTreeUtil.getParentOfType(
guard, PsiMethod.class, PsiClassInitializer.class, PsiClass.class, PsiComment.class);
} while (guard instanceof PsiAnonymousClass);
PsiElement brace = itIsTheClosingCurlyBraceWeAreMoving(file, editor);
if (brace != null) {
int line = editor.getDocument().getLineNumber(offset);
final LineRange toMove = new LineRange(line, line + 1);
toMove.firstElement = toMove.lastElement = brace;
info.toMove = toMove;
}
// cannot move in/outside method/class/initializer/comment
if (!calcInsertOffset(file, editor, info.toMove, info, down)) return false;
int insertOffset =
down
? getLineStartSafeOffset(editor.getDocument(), info.toMove2.endLine)
: editor.getDocument().getLineStartOffset(info.toMove2.startLine);
PsiElement elementAtInsertOffset =
file.getViewProvider().findElementAt(insertOffset, StdLanguages.JAVA);
PsiElement newGuard = elementAtInsertOffset;
do {
newGuard =
PsiTreeUtil.getParentOfType(
newGuard,
PsiMethod.class,
PsiClassInitializer.class,
PsiClass.class,
PsiComment.class);
} while (newGuard instanceof PsiAnonymousClass);
if (brace != null
&& PsiTreeUtil.getParentOfType(brace, PsiCodeBlock.class, false)
!= PsiTreeUtil.getParentOfType(elementAtInsertOffset, PsiCodeBlock.class, false)) {
info.indentSource = true;
}
if (newGuard == guard && isInside(insertOffset, newGuard) == isInside(offset, guard))
return true;
// moving in/out nested class is OK
if (guard instanceof PsiClass && guard.getParent() instanceof PsiClass) return true;
if (newGuard instanceof PsiClass && newGuard.getParent() instanceof PsiClass) return true;
return false;
}