feat(preferences): Add user preferences to enable / disable signature for new mail, reply and forward

SoObjects/SOGo/SOGoDefaults.plist

@@ -109,6 +109,9 @@
     SOGoMailMessageForwarding = "inline";
     SOGoMailReplyPlacement = "below";
     SOGoMailSignaturePlacement = "below";
+    SOGoMailUseSignatureOnNew = YES;
+    SOGoMailUseSignatureOnReply = YES;
+    SOGoMailUseSignatureOnForward = YES;
     SOGoRefreshViewIntervals = ( 1, 2, 5, 10, 20, 30, 60 );
     SOGoMailListViewColumnsOrder = ( "Thread", "Flagged", "Attachment", "Subject",
                                      "From", "Unread", "Date", "Priority",

SoObjects/SOGo/SOGoUserDefaults.h

@@ -175,6 +175,13 @@ extern NSString *SOGoPasswordRecoverySecondaryEmail;
 - (void) setMailSignaturePlacement: (NSString *) newValue;
 - (NSString *) mailSignaturePlacement;
 
+- (BOOL)mailUseSignatureOnNew;
+- (void)setMailUseSignatureOnNew:(BOOL)newValue;
+- (BOOL)mailUseSignatureOnReply;
+- (void)setMailUseSignatureOnReply:(BOOL)newValue;
+- (BOOL)mailUseSignatureOnForward;
+- (void)setMailUseSignatureOnForward:(BOOL)newValue;
+
 - (void) setAllowUserReceipt: (BOOL) allow;
 - (BOOL) allowUserReceipt;
 - (void) setUserReceiptNonRecipientAction: (NSString *) action;

SoObjects/SOGo/SOGoUserDefaults.m

@@ -707,6 +707,36 @@ NSString *SOGoPasswordRecoverySecondaryEmail = @"SecondaryEmail";
   return signaturePlacement;
 }
 
+- (BOOL) mailUseSignatureOnNew
+{
+  return [self boolForKey: @"SOGoMailUseSignatureOnNew"];
+}
+
+- (void) setMailUseSignatureOnNew: (BOOL) newValue
+{
+  [self setBool: newValue  forKey: @"SOGoMailUseSignatureOnNew"];
+}
+
+- (BOOL) mailUseSignatureOnReply
+{
+  return [self boolForKey: @"SOGoMailUseSignatureOnReply"];
+}
+
+- (void) setMailUseSignatureOnReply: (BOOL) newValue
+{
+  [self setBool: newValue  forKey: @"SOGoMailUseSignatureOnReply"];
+}
+
+- (BOOL) mailUseSignatureOnForward
+{
+  return [self boolForKey: @"SOGoMailUseSignatureOnForward"];
+}
+
+- (void) setMailUseSignatureOnForward: (BOOL) newValue
+{
+  [self setBool: newValue  forKey: @"SOGoMailUseSignatureOnForward"];
+}
+
 - (void) setAllowUserReceipt: (BOOL) allow
 {
   [self setBool: allow forKey: @"SOGoMailReceiptAllow"];