Make CPPanel -becomesKeyOnlyIfNeeded and CPView -needsPanelToBecomeKey work.

AppKit/CPTextField.j

@@ -569,6 +569,14 @@ CPTextFieldStatePlaceholder = CPThemeState("placeholder");
     return YES;
 }
 
+/*!
+    Text fields require panels to become key window, so this returns \c YES.
+*/
+- (BOOL)needsPanelToBecomeKey
+{
+    return YES;
+}
+
 - (void)mouseDown:(CPEvent)anEvent
 {
     // Don't track! (ever?)
@@ -1028,6 +1036,8 @@ CPTextFieldStatePlaceholder = CPThemeState("placeholder");
         var view = [[_CPImageAndTextView alloc] initWithFrame:_CGRectMakeZero()];
         //[view setImagePosition:CPNoImage];
         
+        [view setHitTests:NO];
+        
         return view;
     }
     

AppKit/CPView.j

@@ -1284,6 +1284,14 @@ var CPViewFlags                     = { },
     return self;
 }
 
+/*!
+    Returns \c YES if this view requires a panel to become key. Normally only text fields, so this returns \c NO.
+*/
+- (BOOL)needsPanelToBecomeKey
+{
+    return NO;
+}
+
 /*!
     Returns \c YES if mouse events aren't needed by the receiver and can be sent to the superview. The
     default implementation returns \c NO if the view is opaque.

AppKit/CPWindow/CPWindow.j

@@ -1321,7 +1321,7 @@ CPTexturedBackgroundWindowMask
 
                                     var theWindow = [anEvent window];
 
-                                    if ([theWindow isKeyWindow] || [theWindow becomesKeyOnlyIfNeeded])
+                                    if ([theWindow isKeyWindow] || [theWindow becomesKeyOnlyIfNeeded] && ![_leftMouseDownView needsPanelToBecomeKey])
                                         return [_leftMouseDownView mouseDown:anEvent];
                                     else
                                     {