ui/base/cocoa/controls/hover_image_menu_button.mm

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #import "ui/base/cocoa/controls/hover_image_menu_button.h"
   6
   7 #include "base/mac/foundation_util.h"
   8 #import "ui/base/cocoa/controls/hover_image_menu_button_cell.h"
   9
  10 @implementation HoverImageMenuButton
  11
  12 + (Class)cellClass {
  13   return [HoverImageMenuButtonCell class];
  14 }
  15
  16 - (id)initWithFrame:(NSRect)frameRect
  17           pullsDown:(BOOL)flag {
  18   if ((self = [super initWithFrame:frameRect
  19                          pullsDown:flag])) {
  20     trackingArea_.reset(
  21         [[CrTrackingArea alloc] initWithRect:NSZeroRect
  22                                      options:NSTrackingInVisibleRect |
  23                                              NSTrackingMouseEnteredAndExited |
  24                                              NSTrackingActiveInKeyWindow
  25                                        owner:self
  26                                     userInfo:nil]);
  27     [self addTrackingArea:trackingArea_.get()];
  28   }
  29   return self;
  30 }
  31
  32 - (HoverImageMenuButtonCell*)hoverImageMenuButtonCell {
  33   return base::mac::ObjCCastStrict<HoverImageMenuButtonCell>([self cell]);
  34 }
  35
  36 - (void)mouseEntered:(NSEvent*)theEvent {
  37   [[self cell] setHovered:YES];
  38 }
  39
  40 - (void)mouseExited:(NSEvent*)theEvent {
  41   [[self cell] setHovered:NO];
  42 }
  43
  44 @end