Menu handling fixes

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@5700 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,12 @@
+Fri Jan  7 20:30:00 2000  Richard Frith-Macdonald <richard@brainstorm.co.uk>
+
+	* Source/NSResponder.m: Changed _rightMouseDisplay to take the event
+	as a parameter.
+	* Source/NSMenu.m: Implemented ([-_rightMouseDisplay:]) with various
+	minor supporting changes.
+	* Source/NSMenuView.m: Lots of messing with mouse tracking in support
+	of right-mouse menu popup and somewhat smoother operation.
+
 Fri Jan  7 18:09:15 2000  Nicola Pero  <n.pero@mi.flashnet.it>
 
 	* Headers/AppKit/NSBrowser.h: Fixed typo.

Source/NSMenu.m

@@ -1016,9 +1016,11 @@ static NSString	*NSMenuLocationsKey = @"NSMenuLocations";
   [titleView _releaseCloseButton];
 } 
 
-- (void) _rightMouseDisplay
+- (void) _rightMouseDisplay: (NSEvent*)theEvent
 {
-  // TODO: implement this method.
+  [self displayTransient];
+  [menu_view mouseDown: theEvent];
+  [self closeTransient];
 }
 
 - (void) display
@@ -1085,12 +1087,27 @@ static NSString	*NSMenuLocationsKey = @"NSMenuLocations";
 
   menu_follow_transient = YES;
 
-  // Cache the old submenu if any.
+  /*
+   * Cache the old submenu if any and query the supermenu our position.
+   * Otherwise, raise menu under the mouse.
+   */
+  if (menu_supermenu != nil)
+    {
       _oldAttachedMenu = menu_supermenu->menu_attachedMenu;
       menu_supermenu->menu_attachedMenu = self;
-
-  // Query the supermenu our position.
       location = [menu_supermenu locationForSubmenu: self];
+    }
+  else
+    {
+      NSRect	frame = [aWindow frame];
+
+      location = [aWindow mouseLocationOutsideOfEventStream];
+      location = [aWindow convertBaseToScreen: location];
+      location.x -= frame.size.width/2;
+      if (location.x < 0)
+	location.x = 0;
+      location.y -= frame.size.height - 10;
+    }
 
   [bWindow setFrameOrigin: location];
 
@@ -1144,7 +1161,8 @@ static NSString	*NSMenuLocationsKey = @"NSMenuLocations";
 
   [[aWindow contentView] setNeedsDisplay: YES];
 
-  // Restore the old submenu.
+  // Restore the old submenu (if any).
+  if (menu_supermenu != nil)
     menu_supermenu->menu_attachedMenu = _oldAttachedMenu;
 
   menu_follow_transient = NO;

Source/NSMenuView.m

@@ -709,15 +709,12 @@ static float GSMenuBarHeight = 25.0; // A wild guess.
   [targetMenuView setHighlightedItemIndex: -1];
 }
 
-#define MOVE_THRESHOLD_DELTA 1.0
+#define MOVE_THRESHOLD_DELTA 2.0
 #define DELAY_MULTIPLIER     6
 
 - (BOOL) trackWithEvent: (NSEvent*)event
 {
-  NSApplication *theApp           = [NSApplication sharedApplication];  
+  unsigned	eventMask = NSPeriodicMask;
-  unsigned       eventMask        = NSLeftMouseUpMask 
-			          | NSLeftMouseDraggedMask
-                                  | NSPeriodicMask;
   NSDate        *theDistantFuture = [NSDate distantFuture];
   int		index;
   NSPoint	location;
@@ -728,6 +725,27 @@ static float GSMenuBarHeight = 25.0; // A wild guess.
   int		delayCount = 0;
   float		xDelta = MOVE_THRESHOLD_DELTA;
   float		yDelta = 0.0;
+  NSEvent	*original;
+  NSEventType	type = [event type];
+  NSEventType	end;
+
+  /*
+   * The original event is unused except to determine whether the method
+   * was invoked in response to a right or left mouse down.
+   * We pass the same event on when we want tracking to move into a
+   * submenu.
+   */
+  original = AUTORELEASE(RETAIN(event));
+  if (type == NSRightMouseDown)
+    {
+      end = NSRightMouseUp;
+      eventMask |= NSRightMouseUpMask | NSRightMouseDraggedMask;
+    }
+  else
+    {
+      end = NSLeftMouseUp;
+      eventMask |= NSLeftMouseUpMask | NSLeftMouseDraggedMask;
+    }
       
   do
     {
@@ -738,7 +756,7 @@ static float GSMenuBarHeight = 25.0; // A wild guess.
 	{
 	  mouseMoved = YES;	/* Ok - had an initial movement. */
 	}
-      if ([event type] == NSPeriodic)
+      if (type == NSPeriodic)
 	{
 	  if ([menuv_menu isPartlyOffScreen])
 	    {
@@ -781,7 +799,7 @@ static float GSMenuBarHeight = 25.0; // A wild guess.
 		   */
 		  delayCount++;
 		  if (delayCount >= DELAY_MULTIPLIER
-		    || (xDiff < -xDelta)
+		    || (xDiff < 0)
 		    || (yDelta < 0.0 && yDiff > -yDelta)
 		    || (yDelta > 0.0 && yDiff < -yDelta))
 		    {
@@ -798,9 +816,26 @@ static float GSMenuBarHeight = 25.0; // A wild guess.
 
       if (index == -1)
 	{
-	  if ([menuv_menu attachedMenu])
+	  NSWindow	*w;
+
+	  location = [window convertBaseToScreen: location];
+
+	  /*
+	   * If the mouse is back in the supermenu, we return NO so that
+	   * our caller knows the button was not released.
+	   */
+	  w = [[menuv_menu supermenu] window];
+	  if (w != nil && NSMouseInRect(location, [w frame], NO) == YES)
 	    {
-	      if ([[self attachedMenuView] trackWithEvent: event])
+	      return NO;
+	    }
+	  /*
+	   * if the mouse is in our attached menu - get that menu to track it.
+	   */
+	  w = [[menuv_menu attachedMenu] window];
+	  if (w != nil && NSMouseInRect(location, [w frame], NO) == YES)
+	    {
+	      if ([[self attachedMenuView] trackWithEvent: original])
 		return YES;
 	    }
 	  else
@@ -808,10 +843,11 @@ static float GSMenuBarHeight = 25.0; // A wild guess.
 	      if (index != menuv_highlightedItemIndex)
 		[self setHighlightedItemIndex: index];
 	    }
-
+#if 0
 	  if (([menuv_menu supermenu] && ![menuv_menu isTornOff])
 	      || [menuv_menu isFollowTransient])
 	    return NO;
+#endif
 	}
       else
 	{
@@ -841,12 +877,13 @@ static float GSMenuBarHeight = 25.0; // A wild guess.
 	    }
 	}
 
-      event = [theApp nextEventMatchingMask: eventMask
+      event = [NSApp nextEventMatchingMask: eventMask
 		                 untilDate: theDistantFuture
 		                    inMode: NSEventTrackingRunLoopMode
 		                   dequeue: YES];
+      type = [event type];
     }
-  while ([event type] != NSLeftMouseUp);
+  while (type != end);
 
   // Perform actions as needed.
   if (index != -1 && !alreadyAttachedMenu)
@@ -892,10 +929,12 @@ static float GSMenuBarHeight = 25.0; // A wild guess.
 
   menuv_keepAttachedMenus = YES;
 
-  for (candidateMenu = masterMenu = menuv_menu;
+  masterMenu = menuv_menu;
-       (candidateMenu = [masterMenu supermenu])
+  while ((candidateMenu = [masterMenu supermenu]) != nil
-	 && (![masterMenu isTornOff] || [masterMenu isFollowTransient]);
+    && ([masterMenu isTornOff] == NO || [masterMenu isFollowTransient] == YES))
-       masterMenu = candidateMenu);
+    {
+      masterMenu = candidateMenu;
+    }
 
   originalLocation = [[masterMenu window] frame].origin;
 

Source/NSResponder.m

@@ -204,14 +204,16 @@
 
 - (void) rightMouseDown: (NSEvent *)theEvent
 {
-  if (next_responder)
+  if (next_responder != nil)
+    {
       return [next_responder rightMouseDown: theEvent];
+    }
   else
     {
       NSMenu	*menu = [NSApp mainMenu];
 
-      if (menu)
+      if (menu != nil)
-	[menu _rightMouseDisplay];
+	[menu _rightMouseDisplay: theEvent];
       else
 	return [self noResponderFor: @selector(rightMouseDown:)];
     }