@Override
public void fileDeleted(@NotNull final VirtualFileEvent event) {
final VirtualFile vFile = event.getFile();
VirtualFile parent = event.getParent();
final PsiDirectory parentDir = getCachedDirectory(parent);
final PsiFile psiFile = myFileManager.getCachedPsiFileInner(vFile);
if (psiFile != null) {
myFileManager.setViewProvider(vFile, null);
if (parentDir != null) {
ApplicationManager.getApplication()
.runWriteAction(
new ExternalChangeAction() {
@Override
public void run() {
PsiTreeChangeEventImpl treeEvent = new PsiTreeChangeEventImpl(myManager);
treeEvent.setParent(parentDir);
treeEvent.setChild(psiFile);
myManager.childRemoved(treeEvent);
}
});
} else if (parent != null) {
handleVfsChangeWithoutPsi(parent);
}
} else {
final PsiDirectory psiDir = myFileManager.getCachedDirectory(vFile);
if (psiDir != null) {
myFileManager.removeInvalidFilesAndDirs(false);
if (parentDir != null) {
ApplicationManager.getApplication()
.runWriteAction(
new ExternalChangeAction() {
@Override
public void run() {
PsiTreeChangeEventImpl treeEvent = new PsiTreeChangeEventImpl(myManager);
treeEvent.setParent(parentDir);
treeEvent.setChild(psiDir);
myManager.childRemoved(treeEvent);
}
});
}
} else if (parent != null) {
handleVfsChangeWithoutPsi(parent);
}
}
}
@Override
public void fileMoved(@NotNull VirtualFileMoveEvent event) {
// let PushedFilePropertiesUpdater process all pending vfs events and update file properties
// before we issue PSI events
PushedFilePropertiesUpdater.getInstance(myProject).processPendingEvents();
final VirtualFile vFile = event.getFile();
final PsiDirectory oldParentDir = myFileManager.findDirectory(event.getOldParent());
final PsiDirectory newParentDir = myFileManager.findDirectory(event.getNewParent());
if (oldParentDir == null && newParentDir == null) return;
final PsiElement oldElement =
vFile.isDirectory()
? myFileManager.getCachedDirectory(vFile)
: myFileManager.getCachedPsiFileInner(vFile);
myFileManager.removeInvalidFilesAndDirs(true);
final PsiElement newElement;
final FileViewProvider newViewProvider;
if (!vFile.isDirectory()) {
newViewProvider = myFileManager.createFileViewProvider(vFile, true);
newElement = newViewProvider.getPsi(myFileManager.findViewProvider(vFile).getBaseLanguage());
} else {
newElement = myFileManager.findDirectory(vFile);
newViewProvider = null;
}
if (oldElement == null && newElement == null) return;
ApplicationManager.getApplication()
.runWriteAction(
new ExternalChangeAction() {
@Override
public void run() {
PsiTreeChangeEventImpl treeEvent = new PsiTreeChangeEventImpl(myManager);
if (oldElement == null) {
myFileManager.setViewProvider(vFile, newViewProvider);
treeEvent.setParent(newParentDir);
treeEvent.setChild(newElement);
myManager.childAdded(treeEvent);
} else {
if (newElement == null) {
myFileManager.setViewProvider(vFile, null);
treeEvent.setParent(oldParentDir);
treeEvent.setChild(oldElement);
myManager.childRemoved(treeEvent);
} else {
if (newElement instanceof PsiDirectory
|| FileManagerImpl.areViewProvidersEquivalent(
newViewProvider, ((PsiFile) oldElement).getViewProvider())) {
treeEvent.setOldParent(oldParentDir);
treeEvent.setNewParent(newParentDir);
treeEvent.setChild(oldElement);
myManager.childMoved(treeEvent);
} else {
myFileManager.setViewProvider(vFile, newViewProvider);
PsiTreeChangeEventImpl treeRemoveEvent =
new PsiTreeChangeEventImpl(myManager);
treeRemoveEvent.setParent(oldParentDir);
treeRemoveEvent.setChild(oldElement);
myManager.childRemoved(treeRemoveEvent);
PsiTreeChangeEventImpl treeAddEvent = new PsiTreeChangeEventImpl(myManager);
treeAddEvent.setParent(newParentDir);
treeAddEvent.setChild(newElement);
myManager.childAdded(treeAddEvent);
}
}
}
}
});
}
@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);
}
}
});
}
@Nullable
private PsiDirectory getCachedDirectory(VirtualFile parent) {
return parent == null ? null : myFileManager.getCachedDirectory(parent);
}