[Mac] Move all the related files for the Wrench menu into a subdir of c/b/u/c...

chrome/browser/ui/cocoa/menu_tracked_button.mm

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import "chrome/browser/ui/cocoa/menu_tracked_button.h"
-
-#include <cmath>
-
-@interface MenuTrackedButton (Private)
-- (void)doHighlight:(BOOL)highlight;
-- (void)checkMouseInRect;
-- (NSRect)insetBounds;
-- (BOOL)shouldHighlightOnHover;
-@end
-
-@implementation MenuTrackedButton
-
-@synthesize tracking = tracking_;
-
-- (void)updateTrackingAreas {
-  [super updateTrackingAreas];
-  [self removeTrackingRect:trackingTag_];
-  trackingTag_ = [self addTrackingRect:NSInsetRect([self bounds], 1, 1)
-                                 owner:self
-                              userData:NULL
-                          assumeInside:NO];
-}
-
-- (void)viewDidMoveToWindow {
-  [self updateTrackingAreas];
-  [self doHighlight:NO];
-}
-
-- (void)mouseEntered:(NSEvent*)theEvent {
-  if (!tracking_) {
-    didEnter_ = YES;
-  }
-  [self doHighlight:YES];
-  [super mouseEntered:theEvent];
-}
-
-- (void)mouseExited:(NSEvent*)theEvent {
-  didEnter_ = NO;
-  tracking_ = NO;
-  [self doHighlight:NO];
-  [super mouseExited:theEvent];
-}
-
-- (void)mouseDragged:(NSEvent*)theEvent {
-  tracking_ = !didEnter_;
-
-  NSPoint point = [self convertPoint:[theEvent locationInWindow] fromView:nil];
-  BOOL highlight = NSPointInRect(point, [self insetBounds]);
-  [self doHighlight:highlight];
-
-  // If tracking in non-sticky mode, poll the mouse cursor to see if it is still
-  // over the button and thus needs to be highlighted.  The delay is the
-  // smallest that still produces the effect while minimizing jank. Smaller
-  // values make the selector fire too close to immediately/now for the mouse to
-  // have moved off the receiver, and larger values produce lag.
-  if (tracking_ && [self shouldHighlightOnHover]) {
-    [self performSelector:@selector(checkMouseInRect)
-               withObject:nil
-               afterDelay:0.05
-                  inModes:[NSArray arrayWithObject:NSEventTrackingRunLoopMode]];
-  }
-  [super mouseDragged:theEvent];
-}
-
-- (void)mouseUp:(NSEvent*)theEvent {
-  [self doHighlight:NO];
-  if (!tracking_) {
-    return [super mouseUp:theEvent];
-  }
-  [self performClick:self];
-  tracking_ = NO;
-}
-
-- (void)doHighlight:(BOOL)highlight {
-  if (![self shouldHighlightOnHover]) {
-    return;
-  }
-  [[self cell] setHighlighted:highlight];
-  [self setNeedsDisplay];
-}
-
-// Checks if the user's current mouse location is over this button.  If it is,
-// the user is merely hovering here.  If it is not, then disable the highlight.
-// If the menu is opened in non-sticky mode, the button does not receive enter/
-// exit mouse events and thus polling is necessary.
-- (void)checkMouseInRect {
-  NSPoint point = [NSEvent mouseLocation];
-  point = [[self window] convertScreenToBase:point];
-  point = [self convertPoint:point fromView:nil];
-  if (!NSPointInRect(point, [self insetBounds])) {
-    [self doHighlight:NO];
-  }
-}
-
-// Returns the bounds of the receiver slightly inset to avoid highlighting both
-// buttons in a pair that overlap.
-- (NSRect)insetBounds {
-  return NSInsetRect([self bounds], 2, 1);
-}
-
-- (BOOL)shouldHighlightOnHover {
-  // Apple does not define NSAppKitVersionNumber10_5 when using the 10.5 SDK.
-  // The Internets have come up with this solution.
-  #ifndef NSAppKitVersionNumber10_5
-  #define NSAppKitVersionNumber10_5 949
-  #endif
-
-  // There's a cell drawing bug in 10.5 that was fixed on 10.6.  Hover states
-  // look terrible due to this, so disable highlighting on 10.5.
-  return std::floor(NSAppKitVersionNumber) > NSAppKitVersionNumber10_5;
-}
-
-@end