| // Copyright (c) 2012 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. |
| |
| #include "ui/base/layout.h" |
| |
| #include <Cocoa/Cocoa.h> |
| |
| #include "base/mac/sdk_forward_declarations.h" |
| |
| namespace { |
| |
| float GetScaleFactorScaleForNativeView(gfx::NativeView view) { |
| if (NSWindow* window = [view window]) { |
| if ([window respondsToSelector:@selector(backingScaleFactor)]) |
| return [window backingScaleFactor]; |
| return [window userSpaceScaleFactor]; |
| } |
| |
| NSArray* screens = [NSScreen screens]; |
| if (![screens count]) |
| return 1.0f; |
| |
| NSScreen* screen = [screens objectAtIndex:0]; |
| if ([screen respondsToSelector:@selector(backingScaleFactor)]) |
| return [screen backingScaleFactor]; |
| return [screen userSpaceScaleFactor]; |
| } |
| |
| } // namespace |
| |
| namespace ui { |
| |
| float GetScaleFactorForNativeView(gfx::NativeView view) { |
| return GetScaleFactorScaleForNativeView(view); |
| } |
| |
| } // namespace ui |
