more appropriate category name

MacPass/MPDocument+History.m

@@ -0,0 +1,40 @@
+//
+//  MPDocument+HistoryBrowsing.m
+//  MacPass
+//
+//  Created by Michael Starke on 26.02.14.
+//  Copyright (c) 2014 HicknHack Software GmbH. All rights reserved.
+//
+
+#import "MPDocument.h"
+
+NSString *const MPDocumentShowEntryHistoryNotification = @"MPDocumentShowEntryHistoryNotification";
+NSString *const MPDocumentHideEntryHistoryNotification  = @"MPDocumentHideEntryHistoryNotification";
+
+@implementation MPDocument (History)
+
+- (void)showEntryHistory:(id)sender {
+  id<MPTargetNodeResolving> resolver = [NSApp targetForAction:@selector(currentTargetEntries)];
+  NSArray *entries = resolver.currentTargetEntries;
+  if(entries.count != 1) {
+    return; // only single selection is used
+  }
+  if(self.hasSearch) {
+    [self exitSearch:sender];
+  }
+  [[NSNotificationCenter defaultCenter] postNotificationName:MPDocumentShowEntryHistoryNotification
+                                                      object:self
+                                                    userInfo:@{ MPDocumentEntryKey: entries.firstObject }];
+}
+
+- (void)hideEntryHistory:(id)sender {
+  [[NSNotificationCenter defaultCenter] postNotificationName:MPDocumentHideEntryHistoryNotification
+                                                      object:self];
+}
+
+- (void)restoreEntry:(KPKEntry *)entry toEntry:(KPKEntry *)historyEntry {
+  [entry revertToEntry:historyEntry];
+  [self.undoManager setActionName:NSLocalizedString(@"RESTORE_HISTORY_ENTRY", "Action to restore and Entry to a previous state of it's history")];
+}
+
+@end