@Override
public void propertyChanged(@NotNull final VirtualFilePropertyEvent event) {
final String propertyName = event.getPropertyName();
final VirtualFile vFile = event.getFile();
final FileViewProvider oldFileViewProvider = myFileManager.findCachedViewProvider(vFile);
final PsiFile oldPsiFile;
if (oldFileViewProvider instanceof SingleRootFileViewProvider) {
oldPsiFile =
((SingleRootFileViewProvider) oldFileViewProvider)
.getCachedPsi(oldFileViewProvider.getBaseLanguage());
} else {
oldPsiFile = null;
}
VirtualFile parent = vFile.getParent();
final PsiDirectory parentDir =
oldPsiFile != null && parent != null
? myFileManager.findDirectory(parent)
: getCachedDirectory(parent);
if (oldFileViewProvider
!= null // there is no need to rebuild if there were no PSI in the first place
&& FileContentUtilCore.FORCE_RELOAD_REQUESTOR.equals(event.getRequestor())) {
myFileManager.forceReload(vFile);
return;
}
// do not suppress reparse request for light files
if (parentDir == null) {
boolean fire = VirtualFile.PROP_NAME.equals(propertyName) && vFile.isDirectory();
if (fire) {
PsiDirectory psiDir = myFileManager.getCachedDirectory(vFile);
fire = psiDir != null;
}
if (!fire && !VirtualFile.PROP_WRITABLE.equals(propertyName)) {
handleVfsChangeWithoutPsi(vFile);
return;
}
}
((SmartPointerManagerImpl) SmartPointerManager.getInstance(myManager.getProject()))
.fastenBelts(vFile, 0, null);
ApplicationManager.getApplication()
.runWriteAction(
new ExternalChangeAction() {
@Override
public void run() {
PsiTreeChangeEventImpl treeEvent = new PsiTreeChangeEventImpl(myManager);
treeEvent.setParent(parentDir);
if (VirtualFile.PROP_NAME.equals(propertyName)) {
if (vFile.isDirectory()) {
PsiDirectory psiDir = myFileManager.getCachedDirectory(vFile);
if (psiDir != null) {
if (myFileTypeManager.isFileIgnored(vFile)) {
myFileManager.removeFilesAndDirsRecursively(vFile);
treeEvent.setChild(psiDir);
myManager.childRemoved(treeEvent);
} else {
treeEvent.setElement(psiDir);
treeEvent.setPropertyName(PsiTreeChangeEvent.PROP_DIRECTORY_NAME);
treeEvent.setOldValue(event.getOldValue());
treeEvent.setNewValue(event.getNewValue());
myManager.propertyChanged(treeEvent);
}
} else {
PsiDirectory psiDir1 = myFileManager.findDirectory(vFile);
if (psiDir1 != null) {
treeEvent.setChild(psiDir1);
myManager.childAdded(treeEvent);
}
}
} else {
final FileViewProvider fileViewProvider =
myFileManager.createFileViewProvider(vFile, true);
final PsiFile newPsiFile =
fileViewProvider.getPsi(fileViewProvider.getBaseLanguage());
if (oldPsiFile != null) {
if (newPsiFile == null) {
myFileManager.setViewProvider(vFile, null);
treeEvent.setChild(oldPsiFile);
myManager.childRemoved(treeEvent);
} else if (!FileManagerImpl.areViewProvidersEquivalent(
fileViewProvider, oldFileViewProvider)) {
myFileManager.setViewProvider(vFile, fileViewProvider);
treeEvent.setOldChild(oldPsiFile);
treeEvent.setNewChild(newPsiFile);
myManager.childReplaced(treeEvent);
} else {
if (oldPsiFile instanceof PsiFileImpl) {
((PsiFileImpl) oldPsiFile).clearCaches();
}
treeEvent.setElement(oldPsiFile);
treeEvent.setPropertyName(PsiTreeChangeEvent.PROP_FILE_NAME);
treeEvent.setOldValue(event.getOldValue());
treeEvent.setNewValue(event.getNewValue());
myManager.propertyChanged(treeEvent);
}
} else if (newPsiFile != null) {
myFileManager.setViewProvider(vFile, fileViewProvider);
if (parentDir != null) {
treeEvent.setChild(newPsiFile);
myManager.childAdded(treeEvent);
}
}
}
} else if (VirtualFile.PROP_WRITABLE.equals(propertyName)) {
if (oldPsiFile == null) return;
treeEvent.setElement(oldPsiFile);
treeEvent.setPropertyName(PsiTreeChangeEvent.PROP_WRITABLE);
treeEvent.setOldValue(event.getOldValue());
treeEvent.setNewValue(event.getNewValue());
myManager.propertyChanged(treeEvent);
} else if (VirtualFile.PROP_ENCODING.equals(propertyName)) {
if (oldPsiFile == null) return;
treeEvent.setElement(oldPsiFile);
treeEvent.setPropertyName(VirtualFile.PROP_ENCODING);
treeEvent.setOldValue(event.getOldValue());
treeEvent.setNewValue(event.getNewValue());
myManager.propertyChanged(treeEvent);
}
}
});
}
@Override
public void beforePropertyChange(@NotNull final VirtualFilePropertyEvent event) {
final VirtualFile vFile = event.getFile();
final String propertyName = event.getPropertyName();
final FileViewProvider viewProvider = myFileManager.findCachedViewProvider(vFile);
VirtualFile parent = vFile.getParent();
final PsiDirectory parentDir =
viewProvider != null && parent != null
? myFileManager.findDirectory(parent)
: getCachedDirectory(parent);
if (parent != null && parentDir == null)
return; // do not notifyListeners event if parent directory was never accessed via PSI
ApplicationManager.getApplication()
.runWriteAction(
new ExternalChangeAction() {
@Override
public void run() {
PsiTreeChangeEventImpl treeEvent = new PsiTreeChangeEventImpl(myManager);
treeEvent.setParent(parentDir);
if (VirtualFile.PROP_NAME.equals(propertyName)) {
final String newName = (String) event.getNewValue();
if (parentDir == null) return;
if (vFile.isDirectory()) {
PsiDirectory psiDir = myFileManager.findDirectory(vFile);
if (psiDir != null) {
if (!myFileTypeManager.isFileIgnored(newName)) {
treeEvent.setChild(psiDir);
treeEvent.setPropertyName(PsiTreeChangeEvent.PROP_DIRECTORY_NAME);
treeEvent.setOldValue(vFile.getName());
treeEvent.setNewValue(newName);
myManager.beforePropertyChange(treeEvent);
} else {
treeEvent.setChild(psiDir);
myManager.beforeChildRemoval(treeEvent);
}
} else {
if ((!Registry.is("ide.hide.excluded.files") || !isExcludeRoot(vFile))
&& !myFileTypeManager.isFileIgnored(newName)) {
myManager.beforeChildAddition(treeEvent);
}
}
} else {
final FileViewProvider viewProvider = myFileManager.findViewProvider(vFile);
PsiFile psiFile = viewProvider.getPsi(viewProvider.getBaseLanguage());
PsiFile psiFile1 = createFileCopyWithNewName(vFile, newName);
if (psiFile != null) {
if (psiFile1 == null) {
treeEvent.setChild(psiFile);
myManager.beforeChildRemoval(treeEvent);
} else if (!psiFile1.getClass().equals(psiFile.getClass())) {
treeEvent.setOldChild(psiFile);
myManager.beforeChildReplacement(treeEvent);
} else {
treeEvent.setChild(psiFile);
treeEvent.setPropertyName(PsiTreeChangeEvent.PROP_FILE_NAME);
treeEvent.setOldValue(vFile.getName());
treeEvent.setNewValue(newName);
myManager.beforePropertyChange(treeEvent);
}
} else {
if (psiFile1 != null) {
myManager.beforeChildAddition(treeEvent);
}
}
}
} else if (VirtualFile.PROP_WRITABLE.equals(propertyName)) {
PsiFile psiFile = myFileManager.getCachedPsiFileInner(vFile);
if (psiFile == null) return;
treeEvent.setElement(psiFile);
treeEvent.setPropertyName(PsiTreeChangeEvent.PROP_WRITABLE);
treeEvent.setOldValue(event.getOldValue());
treeEvent.setNewValue(event.getNewValue());
myManager.beforePropertyChange(treeEvent);
}
}
});
}