public boolean checkAvailable(
@NotNull final Editor editor,
@NotNull final PsiFile file,
@NotNull final MoveInfo info,
final boolean down) {
if (!(file instanceof XmlFile)) {
return false;
}
boolean available = super.checkAvailable(editor, file, info, down);
if (!available) return false;
// updated moved range end to cover multiline tag start
final Document document = editor.getDocument();
int movedLineStart = document.getLineStartOffset(info.toMove.startLine);
final int movedLineEnd = document.getLineEndOffset(info.toMove.endLine - 1);
PsiElement movedEndElement = file.findElementAt(movedLineEnd);
if (movedEndElement instanceof PsiWhiteSpace)
movedEndElement = PsiTreeUtil.prevLeaf(movedEndElement);
PsiElement movedStartElement = file.findElementAt(movedLineStart);
if (movedStartElement instanceof PsiWhiteSpace)
movedStartElement = PsiTreeUtil.nextLeaf(movedStartElement);
if (movedEndElement == null || movedStartElement == null) return false;
final PsiNamedElement namedParentAtEnd =
PsiTreeUtil.getParentOfType(movedEndElement, PsiNamedElement.class);
final PsiNamedElement namedParentAtStart =
PsiTreeUtil.getParentOfType(movedStartElement, PsiNamedElement.class);
final XmlText text = PsiTreeUtil.getParentOfType(movedStartElement, XmlText.class);
final XmlText text2 = PsiTreeUtil.getParentOfType(movedEndElement, XmlText.class);
// Let's do not care about injections for this mover
if ((text != null && InjectedLanguageUtil.getInjectedPsiFiles(text) != null)
|| (text2 != null && InjectedLanguageUtil.getInjectedPsiFiles(text2) != null)) {
return false;
}
XmlTag nearestTag = PsiTreeUtil.getParentOfType(movedStartElement, XmlTag.class);
if (nearestTag != null
&& ("script".equals(nearestTag.getLocalName())
|| (nearestTag instanceof HtmlTag
&& "script".equalsIgnoreCase(nearestTag.getLocalName())))) {
return false;
}
PsiNamedElement movedParent = null;
if (namedParentAtEnd == namedParentAtStart) movedParent = namedParentAtEnd;
else if (namedParentAtEnd instanceof XmlAttribute
&& namedParentAtStart instanceof XmlTag
&& namedParentAtEnd.getParent() == namedParentAtStart) {
movedParent = namedParentAtStart;
} else if (namedParentAtStart instanceof XmlAttribute
&& namedParentAtEnd instanceof XmlTag
&& namedParentAtStart.getParent() == namedParentAtEnd) {
movedParent = namedParentAtEnd;
}
if (movedParent == null) {
return false;
}
final TextRange textRange = movedParent.getTextRange();
if (movedParent instanceof XmlTag) {
final XmlTag tag = (XmlTag) movedParent;
final TextRange valueRange = tag.getValue().getTextRange();
final int valueStart = valueRange.getStartOffset();
if (movedLineStart < valueStart && valueStart + 1 < document.getTextLength()) {
movedLineStart = updateMovedRegionEnd(document, movedLineStart, valueStart + 1, info, down);
}
if (movedLineStart < valueStart) {
movedLineStart =
updatedMovedRegionStart(
document, movedLineStart, tag.getTextRange().getStartOffset(), info, down);
}
} else if (movedParent instanceof XmlAttribute) {
final int endOffset = textRange.getEndOffset() + 1;
if (endOffset < document.getTextLength())
movedLineStart = updateMovedRegionEnd(document, movedLineStart, endOffset, info, down);
movedLineStart =
updatedMovedRegionStart(document, movedLineStart, textRange.getStartOffset(), info, down);
}
final TextRange moveDestinationRange =
new TextRange(
document.getLineStartOffset(info.toMove2.startLine),
document.getLineStartOffset(info.toMove2.endLine));
if (movedParent instanceof XmlAttribute) {
final XmlTag parent = ((XmlAttribute) movedParent).getParent();
if (parent != null) {
final TextRange valueRange = parent.getValue().getTextRange();
// Do not move attributes out of tags
if ((down && moveDestinationRange.getEndOffset() >= valueRange.getStartOffset())
|| (!down
&& moveDestinationRange.getStartOffset()
<= parent.getTextRange().getStartOffset())) {
info.toMove2 = null;
}
}
}
if (down) {
PsiElement updatedElement = file.findElementAt(moveDestinationRange.getEndOffset());
if (updatedElement instanceof PsiWhiteSpace)
updatedElement = PsiTreeUtil.prevLeaf(updatedElement);
if (updatedElement != null) {
final PsiNamedElement namedParent =
PsiTreeUtil.getParentOfType(updatedElement, movedParent.getClass());
if (namedParent instanceof XmlTag) {
final XmlTag tag = (XmlTag) namedParent;
final int offset =
tag.isEmpty()
? tag.getTextRange().getStartOffset()
: tag.getValue().getTextRange().getStartOffset();
updatedMovedIntoEnd(document, info, offset);
} else if (namedParent instanceof XmlAttribute) {
updatedMovedIntoEnd(document, info, namedParent.getTextRange().getEndOffset());
}
}
} else {
PsiElement updatedElement = file.findElementAt(moveDestinationRange.getStartOffset());
if (updatedElement instanceof PsiWhiteSpace)
updatedElement = PsiTreeUtil.nextLeaf(updatedElement);
if (updatedElement != null) {
final PsiNamedElement namedParent =
PsiTreeUtil.getParentOfType(updatedElement, movedParent.getClass());
if (namedParent instanceof XmlTag) {
final XmlTag tag = (XmlTag) namedParent;
final TextRange tagValueRange = tag.getValue().getTextRange();
// We need to update destination range to jump over tag start
final XmlTag[] subtags = tag.getSubTags();
if ((tagValueRange.contains(movedLineStart)
&& subtags.length > 0
&& subtags[0] == movedParent)
|| (tagValueRange.getLength() == 0
&& tag.getTextRange().intersects(moveDestinationRange))) {
final int line = document.getLineNumber(tag.getTextRange().getStartOffset());
final LineRange toMove2 = info.toMove2;
info.toMove2 = new LineRange(Math.min(line, toMove2.startLine), toMove2.endLine);
}
} else if (namedParent instanceof XmlAttribute) {
final int line = document.getLineNumber(namedParent.getTextRange().getStartOffset());
final LineRange toMove2 = info.toMove2;
info.toMove2 = new LineRange(Math.min(line, toMove2.startLine), toMove2.endLine);
}
}
}
return true;
}
