Functions to return locations of various Chrome bundles.

base/mac/bundle_locations.h

+// 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.
+
+#ifndef BASE_MAC_BUNDLE_LOCATIONS_H_
+#define BASE_MAC_BUNDLE_LOCATIONS_H_
+#pragma once
+
+#include "base/base_export.h"
+#include "base/file_path.h"
+
+#if defined(__OBJC__)
+#import <Foundation/Foundation.h>
+#else  // __OBJC__
+class NSBundle;
+class NSString;
+#endif  // __OBJC__
+
+class FilePath;
+
+namespace base {
+namespace mac {
+
+// This file provides several functions to explicitly request the various
+// component bundles of Chrome.  Please use these methods rather than calling
+// +[NSBundle mainBundle] or CFBundleGetMainBundle().
+//
+// Terminology
+//  - "Outer Bundle" - This is the main bundle for Chrome, it's what

[Avi (use Gerrit), 2012/01/10 15:37:13]

semicolon after 'Chrome' rather than comma

[jeremy, 2012/01/11 07:12:44]

Done.

+//  +[NSBundle mainBundle] returns when Chrome is launched normally.
+//
+//  - "Launch Bundle" - This is the bundle from which Chrome was launched.
+//  usually this should be the same as the outer bundle except when Chrome

[Avi (use Gerrit), 2012/01/10 15:37:13]

"Usually this should" is pleonastic. Try

This will be the same as the outer bundle except when Chrome is launched via an
app shortcut, in which case...

[jeremy, 2012/01/11 07:12:44]

Done.

+//  is launched via an app shortcut in which case this will return the app
+//  shortcut's bundle rather than the main Chrome bundle.
+//
+//  - "Framework Bundle" - Bundle corresponding to the Chrome framework.

[Avi (use Gerrit), 2012/01/10 15:37:13]

First two items in the list were "This is the bundle..."; do the same here.

[jeremy, 2012/01/11 07:12:44]

Done.

+//
+// Guidelines for use:
+//  - To access a resource, the Framework bundle should be used.
+//  - If the choice is between the Outer or Launch bundles then please chose

[Avi (use Gerrit), 2012/01/10 15:37:13]

s/chose/choose/

[jeremy, 2012/01/11 07:12:44]

Done.

+//  carefully.  Most often the Outer bundle will be the right choice, but for
+//  cases such as adding an app to the "launch on startup" list, the Launch
+//  bundle is probably the one to use.
+
+// Methods for retrieving the various bundles.
+BASE_EXPORT NSBundle* LaunchBundle();
+BASE_EXPORT FilePath LaunchBundleBundlePath();

[Avi (use Gerrit), 2012/01/10 15:37:13]

Why two 'Bundle's here but one in OuterBundlePath?

[jeremy, 2012/01/11 07:12:44]

Done.

+BASE_EXPORT NSBundle* OuterBundle();
+BASE_EXPORT FilePath OuterBundlePath();
+BASE_EXPORT NSBundle* FrameworkBundle();

[Avi (use Gerrit), 2012/01/10 15:37:13]

FrameworkBundlePath isn't needed?

[jeremy, 2012/01/11 07:12:44]

Done.

+
+// Set the bundle that MainAppBundle will return, overriding the default value

[Avi (use Gerrit), 2012/01/10 15:37:13]

There is no MainAppBundle nor SetOverrideAppBundle. Also, just make this two
sentences. Perhaps

Set the bundles that the preceding functions will return, overriding the default
values. Restore the default by passing in |nil|.

[jeremy, 2012/01/11 07:12:44]

Done.

+// (Restore the default by calling SetOverrideAppBundle(nil)).
+BASE_EXPORT void SetOverrideLaunchBundle(NSBundle* bundle);
+BASE_EXPORT void SetOverrideFrameworkBundle(NSBundle* bundle);
+BASE_EXPORT void SetOverrideOuterBundle(NSBundle* bundle);

[Mark Mentovai, 2012/01/10 22:09:35]

This is replacing base/mac/foundation_util base::mac::SetOverrideAppBundle,
correct?

base/mac/foundation_util also has base::mac::SetOverrideAppBundlePath, which
accepts a FilePath argument.

[jeremy, 2012/01/11 07:12:44]

Done.

+

[Mark Mentovai, 2012/01/10 22:09:35]

Maybe we should just have

// In the .h:

enum WhichBundle {
  BUNDLE_OUTER_APP,
  BUNDLE_LAUNCHED_APP,
  BUNDLE_FRAMEWORK,
};

NSBundle* GetBundle(WhichBundle);
FilePath GetBundlePath(WhichBundle);
void SetBundleOverride(WhichBundle, NSBundle*);
void SetBundleOverridePath(WhichBundle, const FilePath&);

// In the .mm:

namespace {
NSBundle* g_override_bundles[BUNDLE_FRAMEWORK + 1];
}  // namespace

except that outside of base::mac, the calls would look like
base::mac::GetBundlePath(base::mac::BUNDLE_LAUNCHED_APP), which may be a little
verbose.

[jeremy, 2012/01/11 07:12:44]

Personally I prefer the method in this patch to the verbosity of an enum.

+}  // namespace mac
+}  // namespace base
+
+#endif  // #ifndef BASE_MAC_BUNDLE_LOCATIONS_H_

[Mark Mentovai, 2012/01/10 22:09:35]

No #ifndef in the comment.

[jeremy, 2012/01/11 07:12:44]

Done.