Handle keyboard shortcuts in Mac Panels.

chrome/browser/ui/cocoa/browser_window_utils.h

+// Copyright (c) 2011 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.
+
+#ifndef CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_UTILS_H_
+#define CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_UTILS_H_
+#pragma once
+
+#import <Cocoa/Cocoa.h>
+
+class Browser;
+struct NativeWebKeyboardEvent;
+
+@interface BrowserWindowUtils : NSObject
+
+// Returns YES if keyboard event should be handled.
++ (BOOL)shouldHandleKeyboardEvent:(const NativeWebKeyboardEvent&)event;

[Avi (use Gerrit), 2011/08/24 05:01:10]

Passing ObjC parameters by const&? Wow, I guess that works (this is ObjC++) but
do we do that elsewhere? Part of me wants to make you change it, part says, hey,
cool, this works.

[jennb, 2011/08/24 17:50:34]

Amazing what people do when they don't know what's impossible. :-)  After your
comment, I went looking and actually found some examples of this, one of which I
traced back to thakis in tab_contents_view_mac.mm and one which seems to trace
back to you in app_controller_mac.mm. After those two, I stopped looking as
you're both on my short list of Cocoa experts.

[Dmitry Titov, 2011/08/24 17:53:17]

Interesting indeed. I'm no ObjC++ expert, but unless we want to amend current
style rules, usually consistency wins. This way, people don't need to guess
which one to use. Unless we change the rules of course :-)

+
+// Determines the command associated with the keyboard event.
+// Returns -1 if no command found.
++ (int)getCommandId:(const NativeWebKeyboardEvent&)event;
+
+// NSWindow must be a ChromeEventProcessingWindow.
++ (BOOL)handleKeyboardEvent:(NSEvent*)event
+                   inWindow:(NSWindow*)window;
+@end
+
+@interface MenuWalker : NSObject

[Avi (use Gerrit), 2011/08/24 05:01:10]

MenuWalker appears to be an implementation detail of this class. Move the
declaration to the .mm file.

[jennb, 2011/08/24 17:50:34]

Done.

++ (NSMenuItem*)itemForKeyEquivalent:(NSEvent*)key
+                               menu:(NSMenu*)menu;
+@end
+
+#endif  // CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_UTILS_H_