macviews: honor system control tint setting

ui/views/cocoa/bridged_native_widget.mm

 // Copyright 2014 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 "ui/views/cocoa/bridged_native_widget.h"
 
 #import <objc/runtime.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/logging.h"
 #import "base/mac/foundation_util.h"
 #include "base/mac/mac_util.h"
 #import "base/mac/sdk_forward_declarations.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "ui/accelerated_widget_mac/window_resize_helper_mac.h"
 #import "ui/base/cocoa/constrained_window/constrained_window_animation.h"
 #include "ui/base/hit_test.h"
 #include "ui/base/ime/input_method.h"
 #include "ui/base/ime/input_method_factory.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
 #include "ui/gfx/geometry/dip_util.h"
 #import "ui/gfx/mac/coordinate_conversion.h"
 #import "ui/gfx/mac/nswindow_frame_controls.h"
+#import "ui/native_theme/native_theme_mac.h"
 #import "ui/views/cocoa/bridged_content_view.h"
 #import "ui/views/cocoa/drag_drop_client_mac.h"
 #import "ui/views/cocoa/cocoa_mouse_capture.h"
 #import "ui/views/cocoa/cocoa_window_move_loop.h"
 #include "ui/views/cocoa/tooltip_manager_mac.h"
 #import "ui/views/cocoa/views_nswindow_delegate.h"
 #import "ui/views/cocoa/widget_owner_nswindow_adapter.h"
 #include "ui/views/view.h"
 #include "ui/views/views_delegate.h"
 #include "ui/views/widget/native_widget_mac.h"
@@ skipping 356 matching lines @@
   // tied to the C++ object, rather than the delegate (which may be reference
   // counted). This is required since the application hides do not send an
   // orderOut: to individual windows. Unhide, however, does send an order
   // message.
   [[NSNotificationCenter defaultCenter]
       addObserver:window_delegate_
          selector:@selector(onWindowOrderChanged:)
              name:NSApplicationDidHideNotification
            object:nil];
 
+  [[NSNotificationCenter defaultCenter]
+      addObserver:window_delegate_
+         selector:@selector(onSystemControlTintChanged:)
+             name:NSControlTintDidChangeNotification
+           object:nil];
+
   // Validate the window's initial state, otherwise the bridge's initial
   // tracking state will be incorrect.
   DCHECK(![window_ isVisible]);
   DCHECK_EQ(0u, [window_ styleMask] & NSFullScreenWindowMask);
 
   if (params.parent) {
     // Disallow creating child windows of views not currently in an NSWindow.
     CHECK([params.parent window]);
     BridgedNativeWidget* bridged_native_widget_parent =
         NativeWidgetMac::GetBridgeForNativeWindow([params.parent window]);
@@ skipping 414 matching lines @@
   native_widget_mac_->GetWidget()->OnNativeWidgetVisibilityChanged(
       window_visible_);
 
   // Toolkit-views suppresses redraws while not visible. To prevent Cocoa asking
   // for an "empty" draw, disable auto-display while hidden. For example, this
   // prevents Cocoa drawing just *after* a minimize, resulting in a blank window
   // represented in the deminiaturize animation.
   [window_ setAutodisplay:window_visible_];
 }
 
+void BridgedNativeWidget::OnSystemControlTintChanged() {
+  ui::NativeThemeMac::instance()->NotifyObservers();
+}
+
 void BridgedNativeWidget::OnBackingPropertiesChanged() {
   if (layer())
     UpdateLayerProperties();
 }
 
 void BridgedNativeWidget::OnWindowKeyStatusChangedTo(bool is_key) {
   Widget* widget = native_widget_mac()->GetWidget();
   widget->OnNativeWidgetActivationChanged(is_key);
   // The contentView is the BridgedContentView hosting the views::RootView. The
   // focus manager will already know if a native subview has focus.
@@ skipping 508 matching lines @@
   [bridged_view_ setMouseDownCanMoveWindow:draggable];
   // AppKit will not update its cache of mouseDownCanMoveWindow unless something
   // changes. Previously we tried adding an NSView and removing it, but for some
   // reason it required reposting the mouse-down event, and didn't always work.
   // Calling the below seems to be an effective solution.
   [window_ setMovableByWindowBackground:NO];
   [window_ setMovableByWindowBackground:YES];
 }
 
 }  // namespace views