private void doSaveDocument(@NotNull final Document document)
throws IOException, SaveVetoException {
VirtualFile file = getFile(document);
if (file == null
|| file instanceof LightVirtualFile
|| file.isValid() && !isFileModified(file)) {
removeFromUnsaved(document);
return;
}
if (file.isValid() && needsRefresh(file)) {
file.refresh(false, false);
if (!myUnsavedDocuments.contains(document)) return;
}
for (FileDocumentSynchronizationVetoer vetoer :
Extensions.getExtensions(FileDocumentSynchronizationVetoer.EP_NAME)) {
if (!vetoer.maySaveDocument(document)) {
throw new SaveVetoException();
}
}
final AccessToken token =
ApplicationManager.getApplication().acquireWriteActionLock(getClass());
try {
doSaveDocumentInWriteAction(document, file);
} finally {
token.finish();
}
}
@Override
public void contentsChanged(VirtualFileEvent event) {
if (event.isFromSave()) return;
final VirtualFile file = event.getFile();
final Document document = getCachedDocument(file);
if (document == null) {
myMultiCaster.fileWithNoDocumentChanged(file);
return;
}
if (isBinaryWithDecompiler(file)) {
myMultiCaster.fileWithNoDocumentChanged(
file); // This will generate PSI event at FileManagerImpl
}
long documentStamp = document.getModificationStamp();
long oldFileStamp = event.getOldModificationStamp();
if (documentStamp != oldFileStamp) {
LOG.info("reload from disk?");
LOG.info(" documentStamp:" + documentStamp);
LOG.info(" oldFileStamp:" + oldFileStamp);
if (file.isValid() && askReloadFromDisk(file, document)) {
reloadFromDisk(document);
}
} else {
reloadFromDisk(document);
}
}
@Override
public boolean requestWriting(@NotNull Document document, Project project) {
final VirtualFile file = getInstance().getFile(document);
if (project != null && file != null && file.isValid()) {
return !file.getFileType().isBinary()
&& ReadonlyStatusHandler.ensureFilesWritable(project, file);
}
if (document.isWritable()) {
return true;
}
document.fireReadOnlyModificationAttempt();
return false;
}
private void doSaveDocumentInWriteAction(@NotNull Document document, @NotNull VirtualFile file)
throws IOException {
if (!file.isValid()) {
removeFromUnsaved(document);
return;
}
if (!file.equals(getFile(document))) {
registerDocument(document, file);
}
if (!isSaveNeeded(document, file)) {
if (document instanceof DocumentEx) {
((DocumentEx) document).setModificationStamp(file.getModificationStamp());
}
removeFromUnsaved(document);
updateModifiedProperty(file);
return;
}
myMultiCaster.beforeDocumentSaving(document);
LOG.assertTrue(file.isValid());
String text = document.getText();
String lineSeparator = getLineSeparator(document, file);
if (!lineSeparator.equals("\n")) {
text = StringUtil.convertLineSeparators(text, lineSeparator);
}
Project project = ProjectLocator.getInstance().guessProjectForFile(file);
LoadTextUtil.write(project, file, this, text, document.getModificationStamp());
myUnsavedDocuments.remove(document);
LOG.assertTrue(!myUnsavedDocuments.contains(document));
myTrailingSpacesStripper.clearLineModificationFlags(document);
}
