Disable undo/redo and cut on 3f menu

Nakarima · Sep 30, 2019 · 9502767 · 9502767
1 parent 2cb506d
commit 9502767
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Showing 2 changed files with 28 additions and 13 deletions.
diff --git a/Blink/TermInput.h b/Blink/TermInput.h
@@ -53,6 +53,9 @@
 
 @interface UndoManager: NSUndoManager
 @property (weak) id<UndoManagerDelegate> undoManagerDelegate;
+
+- (void)skipNext;
+
 @end
 
 @interface TermInput : UITextView

diff --git a/Blink/TermInput.m b/Blink/TermInput.m
@@ -193,15 +193,17 @@ + (NSString *)FKEY:(NSInteger)number
 @end
 
 
-@implementation UndoManager
-- (BOOL)canRedo
-{
-  return YES;
+@implementation UndoManager {
+  NSTimeInterval _startSkip;
 }
 
-- (BOOL)canUndo
-{
-  return YES;
+
+- (BOOL)canRedo {
+  return [self _canOperate];
+}
+
+- (BOOL)canUndo {
+  return [self _canOperate];
 }
 
 -(void)undo
@@ -214,6 +216,14 @@ - (void)redo
   [_undoManagerDelegate redoWithManager:self];
 }
 
+- (void)skipNext {
+  _startSkip = [NSDate timeIntervalSinceReferenceDate];
+}
+
+- (BOOL)_canOperate {
+  return [NSDate timeIntervalSinceReferenceDate] - _startSkip > 0.5;
+}
+
 @end
 
 @interface TermInput () <UndoManagerDelegate, UITextViewDelegate, NSTextStorageDelegate>
@@ -327,9 +337,8 @@ - (BOOL)hasText {
   return YES;
 }
 
-- (NSUndoManager *)undoManager
-{
-  return _cmdModifierSequence ? _undoManager : [super undoManager];
+- (NSUndoManager *)undoManager {
+  return _undoManager;
 }
 
 - (UIKeyboardAppearance)_keyboardAppearance
@@ -748,9 +757,10 @@ - (void)unselect:(id)sender
   [_device.view cleanSelection];
 }
 
-//- (UIEditingInteractionConfiguration)editingInteractionConfiguration {
-//  return UIEditingInteractionConfigurationNone;
-//}
+- (UIEditingInteractionConfiguration)editingInteractionConfiguration {
+  [_undoManager skipNext];
+  return UIEditingInteractionConfigurationDefault;
+}
 
 - (BOOL)canPerformAction:(SEL)action withSender:(id)sender
 {
@@ -771,6 +781,8 @@ - (BOOL)canPerformAction:(SEL)action withSender:(id)sender
     }
 
     return NO;
+  } else if ([sender isEqual:@"UIEditingInteraction"]) {
+    return action != @selector(cut:);
   }
 
 //  UIApplicationState appState = [[UIApplication sharedApplication] applicationState];