Extracted context bar for trash, history and filter browsing. Some regressions in focus handling were introduced. History tab will go away as this will be incorporated in the entry comparable to searching. Code cleanup. Moved copying to KeePassKit

MacPass/MPContextBarViewController.h

@@ -0,0 +1,54 @@
+//
+//  MPContextBarViewController.h
+//  MacPass
+//
+//  Created by Michael Starke on 16/12/13.
+//  Copyright (c) 2013 HicknHack Software GmbH. All rights reserved.
+//
+
+#import "MPViewController.h"
+
+@protocol MPContextBarDelegate <NSObject>
+
+@optional
+- (void)contextBarDidChangeFilter;
+- (void)contextBarDidExitFilter;
+- (void)contextBarDidExitHistory;
+- (void)contextBarShouldEmptyTrash;
+@end
+
+typedef NS_OPTIONS(NSUInteger, MPFilterModeType) {
+  MPFilterNone      = 0,
+  MPFilterUrls      = (1<<0),
+  MPFilterUsernames = (1<<1),
+  MPFilterTitles    = (1<<2),
+  MPFilterPasswords = (1<<3),
+};
+
+@class HNHGradientView;
+
+@interface MPContextBarViewController : MPViewController
+
+@property (nonatomic, assign) MPFilterModeType filterMode;
+@property (nonatomic, readonly) BOOL hasFilter;
+@property (nonatomic, weak) id<MPContextBarDelegate> delegate;
+
+- (NSString *)filterString;
+- (NSArray *)filterPredicates;
+
+- (IBAction)toggleFilterSpace:(id)sender;
+
+- (BOOL)showsFilter;
+- (BOOL)showsHistory;
+- (BOOL)showsTrash;
+
+- (void)exitFilter;
+- (void)showFilter;
+
+- (void)showHistory;
+- (void)showTrash;
+
+- (void)enable;
+- (void)disable;
+
+@end