Hi All,
I'm using a NSPanel to mimic menu in Tiger these days. I think most of the
job has been done except one small problem.
What I want to do is that implementing something just behaves like a
popUpButton.
OK let's get into the point.
I got a popUpButton, and I override its cell
@implementation MyPopUpButtonCell
//setting panel frame which makes the panel attach to the popUpButton and
makes the panel on the Screen, then panel orderFrontRegardless
- (void) attachPopUpPanelMenu:(MyMenuPanel *)menuPanel inView:(NSView*)cv;
// panel orderOut
- (void) dismissPanelMenu;
@end
@implementation MyMenuPanel //subclass of NSPanel
- (id)initWithContentRect:(NSRect)contentRect
styleMask:(int)windowStyle backing:(NSBackingStoreType)bufferingType
defer:(BOOL)deferCreation
{
self = [super initWithContentRect:contentRect
styleMask:windowStyle
backing:bufferingType
defer:deferCreation];
if(self)
{
[self setLevel:NSPopUpMenuWindowLevel];
[self setHasShadow:YES];
[self setWorksWhenModal:YES];
}
return self;
}
/**
* tracking Mouse Event . In my custom loop , to get every event in the
queue. * check the event position , if happened in myMenuPanel dispatch the
event , finish loop , popUpButtonCell dismiss the panel
* if event happened outside window , finish loop , popUpButtonCell dismiss
the panel
* I don't need the menu highlight staff , so I don't start or handling
the NSPeriodic
event.
* So everything works good . But if I switch the App to others . My
menuPanel will be hided . because the NSPanel
* hideOnDeactivate. The problem is , my App ,still is on active . I
think the reason is event tracking loop is still on
* It hasn't quit. So , I need find something when myPanelMenu be hidden
to stop the loop.
* Is there any suggestion on this?
*/
- (void) trackingMouseEvent:(NSEvent *) theEvent
{
unsigned eventMask = NSLeftMouseDownMask|NSLeftMouseUpMask|NSLeftMouseDragged;
eventMask |= NSRightMouseDraggedMask|NSRightMouseDownMask|NSRightMouseUpMask;
eventMask |= NSOtherMouseUpMask||NSOtherMouseDraggedMask||NSOtherMouseDownMask;
eventMask |= NSPeriodicMask;
NSDate *date = [NSDate distantFuture];
BOOL keepOn = YES;
NSEvent *nextEvent;
while(keepOn)
{
nextEvent = [NSApp nextEventMatchingMask:eventMask untilDate:date
inMode:NSEventTrackingRunLoopMode dequeue:YES];
NSLog(@"%d %d %d %d %d %d %@ %d",
[self isKeyWindow],
[self isOpaque],
[self isVisible],
[NSApp isHidden],
[NSApp isActive],
[self canBecomeKeyWindow],
[NSApp keyWindow],
[[NSApp keyWindow] isMainWindow]);
switch([nextEvent type])
{
case NSLeftMouseDown:
case NSRightMouseDown:
case NSOtherMouseDown:
//ToDo dispatch to mouseDown method
if(![nextEvent isEqual:theEvent])
{
NSPoint location = [[self window] mouseLocationOutsideOfEventStream];
NSPoint viewLocation = [self convertPoint:location fromView:nil];
if([self mouse:viewLocation inRect:[self bounds]])
{
[self mouseDown:theEvent];
}
else
keepOn = NO;
}
break;
case NSLeftMouseUp:
case NSRightMouseUp:
case NSOtherMouseUp:
//ToDo dispatch to mouseUp method
if([nextEvent timestamp] - [theEvent timestamp] > 0.25)
{
NSPoint location = [[self window] mouseLocationOutsideOfEventStream];
NSPoint viewLocation = [self convertPoint:location fromView:nil];
if([self mouse:viewLocation inRect:[self bounds]])
{
[self mouseUp:theEvent];
}
keepOn = NO;
}
break;
case NSLeftMouseDragged:
case NSRightMouseDragged:
case NSOtherMouseDragged:
[self mouseDragged:theEvent];
break;
default:
break;
}
}
}
@end
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