ui/base/cocoa/appkit_utils.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/appkit_utils.h"
   6
   7 #include "base/mac/mac_util.h"
   8 #include "ui/base/resource/resource_bundle.h"
   9
  10 namespace {
  11
  12 // Gets an NSImage given an image id.
  13 NSImage* GetImage(int image_id) {
  14   return ui::ResourceBundle::GetSharedInstance().GetNativeImageNamed(image_id)
  15       .ToNSImage();
  16 }
  17
  18 // Whether windows should miniaturize on a double-click on the title bar.
  19 bool ShouldWindowsMiniaturizeOnDoubleClick() {
  20   // We use an undocumented method in Cocoa; if it doesn't exist, default to
  21   // |true|. If it ever goes away, we can do (using an undocumented pref key):
  22   //   NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
  23   //   return ![defaults objectForKey:@"AppleMiniaturizeOnDoubleClick"] ||
  24   //          [defaults boolForKey:@"AppleMiniaturizeOnDoubleClick"];
  25   BOOL methodImplemented =
  26       [NSWindow respondsToSelector:@selector(_shouldMiniaturizeOnDoubleClick)];
  27   DCHECK(methodImplemented);
  28   return !methodImplemented ||
  29          [NSWindow performSelector:@selector(_shouldMiniaturizeOnDoubleClick)];
  30 }
  31
  32 }  // namespace
  33
  34 namespace ui {
  35
  36 void DrawNinePartImage(NSRect frame,
  37                        const NinePartImageIds& image_ids,
  38                        NSCompositingOperation operation,
  39                        CGFloat alpha,
  40                        BOOL flipped) {
  41   NSDrawNinePartImage(frame,
  42                       GetImage(image_ids.top_left),
  43                       GetImage(image_ids.top),
  44                       GetImage(image_ids.top_right),
  45                       GetImage(image_ids.left),
  46                       GetImage(image_ids.center),
  47                       GetImage(image_ids.right),
  48                       GetImage(image_ids.bottom_left),
  49                       GetImage(image_ids.bottom),
  50                       GetImage(image_ids.bottom_right),
  51                       operation,
  52                       alpha,
  53                       flipped);
  54 }
  55
  56 void WindowTitlebarReceivedDoubleClick(NSWindow* window, id sender) {
  57   if (ShouldWindowsMiniaturizeOnDoubleClick()) {
  58     [window performMiniaturize:sender];
  59   } else if (base::mac::IsOSYosemiteOrLater()) {
  60     [window performZoom:sender];
  61   }
  62 }
  63
  64 }  // namespace ui