chrome/browser/ui/window_snapshot/window_snapshot_aura.cc - Issue 11399002: Implemented GetWindowSnapshot on RenderViewImpl

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Side by Side Diff: chrome/browser/ui/window_snapshot/window_snapshot_aura.cc

Issue 11399002: Implemented GetWindowSnapshot on RenderViewImpl (Closed) Base URL: http://git.chromium.org/chromium/src.git@master

Patch Set: Moved snapshot files to ui/base Created 8 years, 1 month ago

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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 #include "chrome/browser/ui/window_snapshot/window_snapshot.h"

6

7 #include "base/logging.h"

8 #include "third_party/skia/include/core/SkBitmap.h"

9 #include "ui/aura/window.h"

10 #include "ui/compositor/compositor.h"

11 #include "ui/compositor/dip_util.h"

12 #include "ui/compositor/layer.h"

13 #include "ui/gfx/codec/png_codec.h"

14 #include "ui/gfx/rect.h"

15

16 namespace chrome {

17 namespace internal {

18

19 bool GrabWindowSnapshot(gfx::NativeWindow window,

20 std::vector<unsigned char>* png_representation,

21 const gfx::Rect& snapshot_bounds) {

22 ui::Compositor* compositor = window->layer()->GetCompositor();

23

24 gfx::Rect read_pixels_bounds = snapshot_bounds;

25

26 // When not in compact mode we must take into account the window's position on

27 // the desktop.

28 read_pixels_bounds.Offset(window->bounds().OffsetFromOrigin());

29 gfx::Rect read_pixels_bounds_in_pixel =

30 ui::ConvertRectToPixel(window->layer(), read_pixels_bounds);

31

32 DCHECK_GE(compositor->size().width(), read_pixels_bounds_in_pixel.right());

33 DCHECK_GE(compositor->size().height(), read_pixels_bounds_in_pixel.bottom());

34 DCHECK_LE(0, read_pixels_bounds.x());

35 DCHECK_LE(0, read_pixels_bounds.y());

36

37 SkBitmap bitmap;

38 if (!compositor->ReadPixels(&bitmap, read_pixels_bounds_in_pixel))

39 return false;

40

41 unsigned char* pixels = reinterpret_cast<unsigned char*>(bitmap.getPixels());

42

43 gfx::PNGCodec::Encode(pixels, gfx::PNGCodec::FORMAT_BGRA,

44 read_pixels_bounds_in_pixel.size(),

45 bitmap.rowBytes(), true,

46 std::vector<gfx::PNGCodec::Comment>(),

47 png_representation);

48 return true;

49 }

50

51 } // namespace internal

52 } // namespace chrome

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