public boolean canMoveTo(@Nullable final SourcePosition position) {
if (position == null || !position.getFile().isValid()) {
return false;
}
final PsiFile psiFile = position.getFile();
final Document document = PsiDocumentManager.getInstance(getProject()).getDocument(psiFile);
if (document == null) {
return false;
}
final int spOffset = position.getOffset();
if (spOffset < 0) {
return false;
}
final BreakpointManager breakpointManager =
DebuggerManagerEx.getInstanceEx(getProject()).getBreakpointManager();
return breakpointManager.findBreakpoint(document, spOffset, getCategory()) == null;
}
public static boolean canAddLineBreakpoint(
Project project, final Document document, final int lineIndex) {
if (lineIndex < 0 || lineIndex >= document.getLineCount()) {
return false;
}
final BreakpointManager breakpointManager =
DebuggerManagerEx.getInstanceEx(project).getBreakpointManager();
final LineBreakpoint breakpointAtLine =
breakpointManager.findBreakpoint(
document, document.getLineStartOffset(lineIndex), CATEGORY);
if (breakpointAtLine != null) {
// there already exists a line breakpoint at this line
return false;
}
PsiDocumentManager.getInstance(project).commitDocument(document);
final boolean[] canAdd = new boolean[] {false};
XDebuggerUtil.getInstance()
.iterateLine(
project,
document,
lineIndex,
new Processor<PsiElement>() {
@Override
public boolean process(PsiElement element) {
if ((element instanceof PsiWhiteSpace)
|| (PsiTreeUtil.getParentOfType(element, PsiComment.class, false) != null)) {
return true;
}
PsiElement child = element;
while (element != null) {
final int offset = element.getTextOffset();
if (offset >= 0) {
if (document.getLineNumber(offset) != lineIndex) {
break;
}
}
child = element;
element = element.getParent();
}
if (child instanceof PsiMethod
&& child.getTextRange().getEndOffset()
>= document.getLineEndOffset(lineIndex)) {
PsiCodeBlock body = ((PsiMethod) child).getBody();
if (body == null) {
canAdd[0] = false;
} else {
PsiStatement[] statements = body.getStatements();
canAdd[0] =
statements.length > 0
&& document.getLineNumber(statements[0].getTextOffset()) == lineIndex;
}
} else {
canAdd[0] = true;
}
return false;
}
});
return canAdd[0];
}