chrome/browser/ui/cocoa/new_tab_button.mm

   1 // Copyright (c) 2011 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 "chrome/browser/ui/cocoa/new_tab_button.h"
   6 #import "chrome/browser/ui/cocoa/image_button_cell.h"
   7 #include "grit/theme_resources.h"
   8 #include "ui/base/resource/resource_bundle.h"
   9
  10 // A simple override of the ImageButtonCell to disable handling of
  11 // -mouseEntered.
  12 @interface NewTabButtonCell : ImageButtonCell
  13
  14 - (void)mouseEntered:(NSEvent*)theEvent;
  15
  16 @end
  17
  18 @implementation NewTabButtonCell
  19
  20 - (void)mouseEntered:(NSEvent*)theEvent {
  21   // Ignore this since the NTB enter is handled by the TabStripController.
  22 }
  23
  24 @end
  25
  26
  27 @implementation NewTabButton
  28
  29 + (Class)cellClass {
  30   return [NewTabButtonCell class];
  31 }
  32
  33 - (BOOL)pointIsOverButton:(NSPoint)point {
  34   NSPoint localPoint = [self convertPoint:point fromView:[self superview]];
  35   NSRect pointRect = NSMakeRect(localPoint.x, localPoint.y, 1, 1);
  36   ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
  37   NSImage* buttonMask =
  38       bundle.GetNativeImageNamed(IDR_NEWTAB_BUTTON_MASK).ToNSImage();
  39   NSRect destinationRect = NSMakeRect(
  40       (NSWidth(self.bounds) - [buttonMask size].width) / 2,
  41       (NSHeight(self.bounds) - [buttonMask size].height) / 2,
  42       [buttonMask size].width, [buttonMask size].height);
  43   return [buttonMask hitTestRect:pointRect
  44         withImageDestinationRect:destinationRect
  45                          context:nil
  46                            hints:nil
  47                          flipped:YES];
  48 }
  49
  50 // Override to only accept clicks within the bounds of the defined path, not
  51 // the entire bounding box. |aPoint| is in the superview's coordinate system.
  52 - (NSView*)hitTest:(NSPoint)aPoint {
  53   if ([self pointIsOverButton:aPoint])
  54     return [super hitTest:aPoint];
  55   return nil;
  56 }
  57
  58 @end