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
   7 #import "chrome/browser/ui/cocoa/image_button_cell.h"
   8 #include "grit/theme_resources.h"
   9 #include "ui/base/resource/resource_bundle.h"
  10
  11 // A simple override of the ImageButtonCell to disable handling of
  12 // -mouseEntered.
  13 @interface NewTabButtonCell : ImageButtonCell
  14
  15 - (void)mouseEntered:(NSEvent*)theEvent;
  16
  17 @end
  18
  19 @implementation NewTabButtonCell
  20
  21 - (void)mouseEntered:(NSEvent*)theEvent {
  22   // Ignore this since the NTB enter is handled by the TabStripController.
  23 }
  24
  25 @end
  26
  27
  28 @implementation NewTabButton
  29
  30 + (Class)cellClass {
  31   return [NewTabButtonCell class];
  32 }
  33
  34 - (BOOL)pointIsOverButton:(NSPoint)point {
  35   NSPoint localPoint = [self convertPoint:point fromView:[self superview]];
  36   NSRect pointRect = NSMakeRect(localPoint.x, localPoint.y, 1, 1);
  37   ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
  38   NSImage* buttonMask =
  39       bundle.GetNativeImageNamed(IDR_NEWTAB_BUTTON_MASK).ToNSImage();
  40   NSRect destinationRect = NSMakeRect(
  41       (NSWidth(self.bounds) - [buttonMask size].width) / 2,
  42       (NSHeight(self.bounds) - [buttonMask size].height) / 2,
  43       [buttonMask size].width, [buttonMask size].height);
  44   return [buttonMask hitTestRect:pointRect
  45         withImageDestinationRect:destinationRect
  46                          context:nil
  47                            hints:nil
  48                          flipped:YES];
  49 }
  50
  51 // Override to only accept clicks within the bounds of the defined path, not
  52 // the entire bounding box. |aPoint| is in the superview's coordinate system.
  53 - (NSView*)hitTest:(NSPoint)aPoint {
  54   if ([self pointIsOverButton:aPoint])
  55     return [super hitTest:aPoint];
  56   return nil;
  57 }
  58
  59 // ThemedWindowDrawing implementation.
  60
  61 - (void)windowDidChangeTheme {
  62   [self setNeedsDisplay:YES];
  63 }
  64
  65 - (void)windowDidChangeActive {
  66   [self setNeedsDisplay:YES];
  67 }
  68
  69 @end