Pop up the list of a combo box when the user presses the down arrow

key. This gives users full keyboard control for NSComboBox.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@31120 72102866-910b-0410-8b05-ffd578937521

Source/NSComboBox.m

@@ -29,6 +29,7 @@
 #include "AppKit/NSComboBox.h"
 #include "AppKit/NSComboBoxCell.h"
 #include "AppKit/NSEvent.h"
+#include "AppKit/NSTextView.h"
 
 /*
  * Class variables
@@ -37,6 +38,15 @@ static Class usedCellClass;
 static Class comboBoxCellClass;
 static NSNotificationCenter *nc;
 
+/*
+ * Declaration of private cell method
+ */
+
+@interface NSComboBoxCell (GNUstepPrivate)
+- (void) _performClickWithFrame: (NSRect)cellFrame
+			 inView: (NSView *)controlView;
+@end
+
 /**
  <unit>
  <heading>Class Description</heading> 
@@ -477,6 +487,18 @@ static NSNotificationCenter *nc;
     [super mouseDown: theEvent];
 }
 
+- (BOOL) textView: (NSTextView *)textView doCommandBySelector: (SEL)command
+{
+  if ([super textView: textView doCommandBySelector: command])
+    return YES;
+  if (sel_eq(command, @selector(moveDown:)))
+    {
+      [_cell _performClickWithFrame: [self bounds] inView: self];
+      return YES;
+    }
+  return NO;
+}
+
 - (void) setFrame: (NSRect)frame
 {
   NSRect rect = NSMakeRect(frame.origin.x, frame.origin.y, frame.size.width, 21);