@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);
}
}
}
}
});
}