1 // Copyright (c) 2012 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. 4 5 #import "ui/base/cocoa/nib_loading.h" 6 7 #include "base/mac/bundle_locations.h" 8 #include "base/mac/scoped_nsobject.h" 9 10 namespace ui { 11 12 NSView* GetViewFromNib(NSString* name) { 13 base::scoped_nsobject<NSNib> nib( 14 [[NSNib alloc] initWithNibNamed:name 15 bundle:base::mac::FrameworkBundle()]); 16 if (!nib) 17 return nil; 18 19 NSArray* objects; 20 BOOL success = [nib instantiateNibWithOwner:nil 21 topLevelObjects:&objects]; 22 if (!success) 23 return nil; 24 25 // When loading a nib manually (as opposed to using an NSWindowController or 26 // NSViewController), all the top-level objects need to be explicitly 27 // released. See 28 // http://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/LoadingResources/CocoaNibs/CocoaNibs.html#//apple_ref/doc/uid/10000051i-CH4-SW10 29 // for more information. 30 [objects makeObjectsPerformSelector:@selector(release)]; 31 32 // For some strange reason, even nibs that appear to have but one top-level 33 // object often have more (an NSApplication, etc.). Filter out what isn't 34 // desired. 35 for (NSView* view in objects) { 36 if (![view isKindOfClass:[NSView class]]) 37 continue; 38 39 return [[view retain] autorelease]; 40 } 41 42 return nil; 43 } 44 45 } // namespace ui 46
