@Nullable
private static Change[] loadFakeRevisions(final Project project, final Change[] changes) {
List<Change> matchingChanges = new ArrayList<Change>();
for (Change change : changes) {
matchingChanges.addAll(
ChangeListManager.getInstance(project).getChangesIn(ChangesUtil.getFilePath(change)));
}
return matchingChanges.toArray(new Change[matchingChanges.size()]);
}
public void actionPerformed(final AnActionEvent e) {
final Project project = e.getData(CommonDataKeys.PROJECT);
if (project == null) return;
if (ChangeListManager.getInstance(project).isFreezedWithNotification(null)) return;
final Change[] changes = e.getData(VcsDataKeys.CHANGES);
if (changes == null) return;
final boolean needsConvertion = checkIfThereAreFakeRevisions(project, changes);
final List<Change> changesInList = e.getData(VcsDataKeys.CHANGES_IN_LIST_KEY);
// this trick is essential since we are under some conditions to refresh changes;
// but we can only rely on callback after refresh
final Runnable performer =
new Runnable() {
public void run() {
Change[] convertedChanges;
if (needsConvertion) {
convertedChanges = loadFakeRevisions(project, changes);
} else {
convertedChanges = changes;
}
if (convertedChanges == null || convertedChanges.length == 0) {
return;
}
List<Change> changesInListCopy = changesInList;
int index = 0;
if (convertedChanges.length == 1) {
final Change selectedChange = convertedChanges[0];
ChangeList changeList =
((ChangeListManagerImpl) ChangeListManager.getInstance(project))
.getIdentityChangeList(selectedChange);
if (changeList != null) {
if (changesInListCopy == null) {
changesInListCopy = new ArrayList<Change>(changeList.getChanges());
Collections.sort(
changesInListCopy,
new Comparator<Change>() {
public int compare(final Change o1, final Change o2) {
return ChangesUtil.getFilePath(o1)
.getName()
.compareToIgnoreCase(ChangesUtil.getFilePath(o2).getName());
}
});
}
convertedChanges = changesInListCopy.toArray(new Change[changesInListCopy.size()]);
index =
Math.max(0, ContainerUtil.indexOfIdentity(changesInListCopy, selectedChange));
}
}
showDiffForChange(convertedChanges, index, project);
}
};
if (needsConvertion) {
ChangeListManager.getInstance(project)
.invokeAfterUpdate(
performer,
InvokeAfterUpdateMode.BACKGROUND_CANCELLABLE,
ourText,
ModalityState.current());
} else {
performer.run();
}
}