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| 1 // Copyright (c) 2011 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 #include "chrome/browser/ui/window_snapshot/window_snapshot.h" |
| 6 |
| 7 #import <Cocoa/Cocoa.h> |
| 8 |
| 9 #include "base/logging.h" |
| 10 #include "base/mac/scoped_cftyperef.h" |
| 11 #include "base/scoped_nsobject.h" |
| 12 #include "gfx/rect.h" |
| 13 |
| 14 namespace browser { |
| 15 |
| 16 gfx::Rect GrabWindowSnapshot(gfx::NativeWindow window, |
| 17 std::vector<unsigned char>* png_representation) { |
| 18 png_representation->clear(); |
| 19 |
| 20 // Make sure to grab the "window frame" view so we get current tab + |
| 21 // tabstrip. |
| 22 NSView* view = [[window contentView] superview]; |
| 23 base::mac::ScopedCFTypeRef<CGImageRef> windowSnapshot(CGWindowListCreateImage( |
| 24 CGRectNull, kCGWindowListOptionIncludingWindow, |
| 25 [[view window] windowNumber], kCGWindowImageBoundsIgnoreFraming)); |
| 26 if (CGImageGetWidth(windowSnapshot) <= 0) |
| 27 return gfx::Rect(); |
| 28 |
| 29 scoped_nsobject<NSBitmapImageRep> rep( |
| 30 [[NSBitmapImageRep alloc] initWithCGImage:windowSnapshot]); |
| 31 NSData* data = [rep representationUsingType:NSPNGFileType properties:nil]; |
| 32 const unsigned char* buf = static_cast<const unsigned char*>([data bytes]); |
| 33 NSUInteger length = [data length]; |
| 34 if (buf == NULL || length == 0) |
| 35 return gfx::Rect(); |
| 36 |
| 37 png_representation->assign(buf, buf + length); |
| 38 DCHECK(png_representation->size() > 0); |
| 39 |
| 40 return gfx::Rect(static_cast<int>([rep pixelsWide]), |
| 41 static_cast<int>([rep pixelsHigh])); |
| 42 } |
| 43 |
| 44 } // namespace browser |
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