1 // Copyright 2014 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.
5 #ifndef CHROME_BROWSER_UI_COCOA_VERSION_INDEPENDENT_WINDOW_H_
6 #define CHROME_BROWSER_UI_COCOA_VERSION_INDEPENDENT_WINDOW_H_
8 #import "chrome/browser/ui/cocoa/chrome_event_processing_window.h"
10 #include "base/mac/scoped_nsobject.h"
12 @interface NSWindow (VersionIndependentWindow)
14 // Returns the NSView closest to the root of the NSView hierarchy that is
15 // eligible for adding subviews.
16 // The frame of the view in screen coordinates is coincident with the window's
17 // frame in screen coordinates.
18 - (NSView*)cr_windowView;
22 // By default, the contentView does not occupy the full size of a framed
23 // window. Chrome still wants to draw in the title bar. Historically, Chrome
24 // has done this by adding subviews directly to the root view. This causes
25 // several problems. The most egregious is related to layer ordering when the
26 // root view does not have a layer. By giving the contentView the same size as
27 // the window, there is no longer any need to add subviews to the root view.
29 // No views should be manually added to [[window contentView] superview].
30 // Instead, they should be added to [window cr_windowView].
32 // If the window does not have a titlebar, then its contentView already has the
33 // same size as the window. In this case, this class has no effect.
35 // This class currently does not support changing the window's style after the
36 // window has been initialized.
37 @interface VersionIndependentWindow : ChromeEventProcessingWindow {
39 // Holds the view that replaces [window contentView]. This view has the same
40 // size as the window. Empty if there is no titlebar.
41 base::scoped_nsobject<NSView> chromeWindowView_;
44 // Designated initializer.
45 - (instancetype)initWithContentRect:(NSRect)contentRect
46 styleMask:(NSUInteger)windowStyle
47 backing:(NSBackingStoreType)bufferingType
48 defer:(BOOL)deferCreation
49 wantsViewsOverTitlebar:(BOOL)wantsViewsOverTitlebar;
53 #endif // CHROME_BROWSER_UI_COCOA_VERSION_INDEPENDENT_WINDOW_H_